Friday, October 28, 2011

Violation of nuclear accident emergency preparedness for Kudankulam

Violation of nuclear accident emergency preparedness for Kudankulam Nuclear Plant
Prof.T.Shivaji Rao, Director, Environmental Studies, GITAM University, Visakhapatnam
http://www.nirs.org/reactorwatch/aging/nrdcaccidentip1011.pdf  : Accident Scenario for a U.S.Reactor
http://en.wikipedia.org/wiki/Indian_Point_Energy_Center  : Data for the above U.S. Reactor
http://tshivajirao.blogspot.com/2011/10/kudankulam-nuclear-plant-explosion.html
http://tshivajirao.blogspot.com/2011/09/why-indian-nuclear-plants-are-bound-to.html
http://tshivajirao.blogspot.com/2011/10/people-question-experts-on-safety-of.html
http://tshivajirao.blogspot.com/2011/08/diaster-consequences-of-kovvada-nuclear.html 
http://tshivajirao.blogspot.in/2012/02/kudankulam-nuclear-bomb-over-tamilnadu.html


AS  AN IRRITATED SNAKE  KILLS A MAN, NUCLEAR PLANTS SILENTLY  KILL  MANKIND AND NATURE FOR  FINANCIAL GAINS BY CONTRACTORS,OFFICIALS& POLITICIANS ?
Nuclear Plants are just silent killers of man and Nature created by the GOD. In nature the Uranium ore contains 99.3% of Uranium-238 and the remaining 0.7% is Uranium-235.  Uranium-238 and Uranium-235  in nature are least harmful.  But business people and other vested interests dig the iron ore and  convert  the least harmful Uranium-235  into the fuel form of Uranium-235  by purifying it to make a fuel by enriching it to about 4% of Uranium-235 that is packed in pellets and inserted into the core of the nuclear reactor for producing both electricity and material for making the bombs.   The reactor  when the nuclear atom is given a blow  by a neutron, enormous heat and other poisonous Radio-active atoms like Xenon, Barium, Cesium, Strontium, Plutonium and other dangerous radioactive substances are produced.  These radioactive substances are discharged into the air and water by several ways and  when they enter into the environment consisting of air, water and soil and foods like vegetables, fishes, prawns they ultimately get into human beings and produce cancers and birth defects in generations of people for many decades to come.  These poisonous radioactive substances  destroy natural and human life and culture and convert lands upto hundreds of kilometers into permanent nuclear burial grounds for ever.
How harmless Uranium ore materials in nature are converted into destructive and killer materials by man can be understood by the following simple example. For instance king cobras live in nature in anthills in forests and lead their normal life peacefully by catching their prey for food during nights But greedy people go and poke their iron rods into their abodes and disturb the Cobras when they become angry and bite the trespassers to inflict death over them by their poisons.   Similarly, the selfish people are mining the harmless Uranium and converting it into harmful  Enriched Uranium and then using it to produce electricity by means of the Nuclear plants and in the process they are producing Radioactive pollutants that poison man and nature slowly due to routine releases of radioactivity into the environment.  In course of time if an accident occurs in the Nuclear plant due to several reasons like in Fukushima or Chernobyl, the poisonous pollutants are thrown into the atmosphere and they kill thousands of people slowly and inflict cancer to millions of people living downstream upto hundreds of Kilometers as in case of Fukushima and Chernobyl accidents. The Nuclear plant operators are misleading the public by stating that Nuclear power is safe and cheap just like the medical representatives of various pharmaceutical companies praise before the doctors about the virtues of their medical tablets and tonics as part of their sale promotion activity the nuclear authorities are praising the nuclear plants as safe and cheap energy producers which is wrong.  This misinformation is dangerous to public health and welfare because in European states almost all people agree that safety of Nuclear (power is a Myth as accepted by Angela Merkel, Chancellor of Germany. She had consulted the genuine experts on nuclear plants and realized that nuclear safety is a myth and ordered for gradual closure of all the nuclear plants in Germany.  If Indian Prime Minister and Union Cabinet Ministers including the Chief Ministers of the state want to know the truth about the safety of the nuclear power plants they must go and visit advanced countries like Germany and Japan  and discuss the issue with foreign experts  so that they can refrain from promoting nuclear plants as is done by the peoples leader like Mamata Banerjee, Chief Minister of West Bengal.   For more scientific details see the above web sites on this topic prepared by independent experts.

Environmental Impact Analysis report are fabricated by consultants according to the national Green Tribunal and also according to the Chief Justice of India, S.H.Kapadia  who said “If you leave report preparation to the project proponent, I am sorry to say the person who pays will get the answers he asks for” and hence he called for a change in the system of preparation of EIA reports for the development projects.  See website:  http://www.thehindu.com/news/national/article2886141.ece
Indian Authorities violate International Environmental Safety standards in planning for emergency preparedness in case of nuclear reactor accidents:
a)     Emergency Planning  by  Government for Nuclear accidents in Finland (100km zone):
The concept  of off-site emergency response for nuclear reactor accidents in Finland has virtually remain constant since 1976  when the first emergency plans were prepared bythe authorities for the vicinity of Loviisa  nuclear plant site.  Although the results of WASH-1400 study for nuclear accidents in USA were known at that time, the planning requirements were not based on postulated release categories nor on probabilistic risk analysis (PRA).  Instead , the principles to be followed were agreed upon as a consensus opinion of the Ministry of Interior and experts on nuclear safety and radiation protection, and above all the nuclear regulatory authority, then called the Institute of Radiation Protection, nowadays the Finnish centre for Radiation Nuclear Safety (STUK)  The first principle is that of remote siting, meaning restrictions on land use within 5km from the plant site.  In the off-site emergency planning 2 zones are applied
1)      for an area of 20km radius (Zone-I), a detailed off-site plan is required, including rapid alerting of the population and evacuations, if necessary. 
2)      For the surrounding area, within a radius of about 100km (Zone-II), the special requirements imposed by a potential nuclear accidents have to be taken into account in the general emergency preparedness plan. 
On the one hand the above criteria take into account the possibility of a severe nuclear reactor accident in which the consequences of the design basis accidents could be exceeded even far from the plant.  On the other hand the requirements have to be seen from the point of view of society’s preparedness as a whole and the financial investments adjusted to finite resources. 
b)Emergency Planning Zones for nuclear accidents as per United States Standards (80kms Zone):
To facilitate a preplanned strategy for protective actions during an emergency, there are two emergency planning zones (EPZs) around each nuclear power plant. The exact size and shape of each EPZ is a result of detailed planning which includes consideration of the specific conditions at each site, unique geographical features of the area, and demographic information. This preplanned strategy for an EPZ provides a substantial basis to support activity beyond the planning zone in the extremely unlikely event it would be needed.
The two EPZs are described as follows:
Plume Exposure Pathway EPZ
The plume exposure pathway EPZ has a radius of about 10 miles from the reactor site. Predetermined protective action plans are in place for this EPZ and are designed to avoid or reduce dose from potential exposure of radioactive materials. These actions include sheltering, evacuation, and the use of potassium iodide where appropriate. For more information, see Typical 10-Mile Plume Exposure Pathway EPZ Map.
Ingestion Exposure Pathway EPZ
The ingestion exposure pathway EPZ has a radius of about 50 miles from the reactor site. Predetermined protective action plans are in place for this EPZ and are designed to avoid or reduce dose from potential ingestion of radioactive materials. These actions include a ban of contaminated food and water.
http://www.nrc.gov/about-nrc/emerg-preparedness/about-emerg-preparedness/planning-zones.html

C]  International Atomic Energy Agency(IAEA) Guide lines on EPZ violated by INDIA see pages 19 to 32]
 http://www.oecd-nea.org/rp/reports/2003/nea3600-short-term.pdf
 Even tghe Guide lines   recommended by IAEA are violated by India to the detriment of tghe health and welfare of millions of poor people who get  for the sake of the contractors in case of a credible accident

All the political party leaders in India should not accept such serious violations by the state and Union Governments and the nuclear plant authorities as thesenuclear plants are just silent killers of mankind and the Indian states should not be transformed into nuclear burial grounds due to inevitable nuclear accidents in the long run for one reason or theother since nuclear safety is a myth as confirmed in the wake of the Chernobyl and Fukushima disasters by the Chancellor of Germany, Ms.Angela Merkel and Naoto, Ex-PM of Japan.
 
D) Violation by the Indian Nuclear Authorities on the Suggested Emergency Planning Zones and Radius Sizes
Risk Informed Support of Decision Makingin Nuclear Power Plant Emergency Zoning
European Commission, Joint Research Centre, Institute for Energy, Netherlands(2008)

For threat category I, i. e. for NPPs, IAEA document [3] in its Appendix 5 provides suggestions for the approximate radius of the EP zones and food restriction planning radius as given in the following Table 4.1. The radii were selected based on calculations performed using RASCAL 3.0 computer code [12]. The calculations assumed average meteorological conditions, no rain, ground level release; 48 hours of exposure to ground shine, and  calculates the centralized dose to a person outside for 48 hours. The suggested sizes for the PAZ were based on expert judgment considering the following:
Facilities
PAZ radius
UPZ radius
FRPZ radius

Reactors > 1000MW(th)
3 – 5 km
25 km
300 km
Reactors > 100 - 1000MW (th)
0.5 -3 km
5 – 25 km
50 - 300 km
Table 4.1. Suggested Emergency Zones and Radius Sizes for NPPs.
(1) Urgent protective actions taken before or shortly after a release within this radius will prevent doses above the early death thresholds for the vast majority of severe emergencies postulated for these facilities.
(2) Urgent protective actions taken before or shortly after a release within this radius will avert doses above the urgent protective action generic intervention level10 (GIL) for the majority of emergencies postulated for the facility.
(3) Dose rates that could have been fatal within a few hours were observed at these distances during the Chernobyl accident.
(4) The maximum reasonable radius for the PAZ is assumed to be 5 km because:
a) except for the most severe emergencies, it is the limit to which early deaths are postulated [13];
b) it provides about a factor of ten reduction in dose compared to the dose on the site;
c) it is very unlikely that urgent protective actions will be warranted at a significant distance beyond this radial distance;
d) it is considered the practical limit of the distance to which substantial sheltering or evacuation can be promptly implemented before or shortly after a release; and
e) implementing precautionary urgent protective actions to a larger radius may reduce the effectiveness of the action for the people near the site, who are at the greatest risk.
The suggested sizes for the UPZ are also based on expert judgment considering the following:
(1) These are the radial distances to which the reference NUREG-1150 [13] suggests that monitoring to locate and evacuate hot spots (deposition) within hours/days may be warranted in order to significantly reduce the risk of early deaths for the worst emergencies postulated for power reactors.
(2) At these radial distances there is a factor of approximately 10 reduction in concentration (and thus risk) from a release compared to the concentration at the PAZ boundary.
(3) This distance provides a substantial base for expansion of response efforts.
(4) 25 km is assumed to be the practical limit for the radial distance within which to conduct monitoring and implement appropriate urgent protective actions within a few hours or days. Attempting to conduct initial monitoring to a larger radius may reduce the effectiveness of the protective actions for the people near the site, who are at the greatest risk.
(5) For average meteorological (dilution) conditions, beyond this radius, for most postulated severe emergencies, the total effective dose for an individual would not exceed the urgent protective action GILs for evacuation.
As far as long term protective zone FRPZ is concerned, in general, protective actions such as relocation, food restriction and agricultural countermeasures are based on expert judgement considering the following:
(1) Detectable excess stochastic effects (cancers) are very unlikely beyond this distance.
(2) Detailed planning within this distance provides a substantial basis for expansion of response efforts.
(3) Food restrictions were warranted to about 300 km following the Chernobyl accident in order to prevent detectable excess thyroid cancers among children [3].
It should be mentioned here so called Environmental Impact Assessment (EIA), that is an assessment of the likely influence a project may have on the environment. EIA is a procedure that ensures that the environmental implications of decisions are taken into account before the decisions are made and can be very briefly mentioned as the process of identifying, predicting, evaluating and mitigating the biophysical, social, and other relevant effects of development proposals prior to major decisions being taken and commitments made. The purpose of the assessment is to ensure that decision-makers consider environmental impacts before deciding whether to proceed with new projects. The EIA directive11 (Directive 2001/42/EC) was first introduced in 1985 and was amended in 1997 and 2003. However, it has little practical relevance to the issue, as there is no background technical guideline or similar on how to evaluate zones in an EU-wide manner. Nevertheless, the issue of zoning is more and more mentioned in some current EIA studies for NPPs under operation, e.g. Temelin in Czech Republic, Mochovce in Slovakia, or under construction (Belene in Bulgaria).
USA: To facilitate a preplanned strategy for protective actions during an emergency, there are two EPZs around each NPP. First, the plume exposure pathway EPZ has a radius of about 10 miles (16 km) from the reactor. Predetermined protection actions include sheltering, evacuation, and the use of potassium iodide where appropriate. Second, the ingestion exposure pathway EPZ. It has a radius of about 50 miles (80 km) from the reactor. Predetermined protection actions include a ban of contaminated food and water.


Saturday, October 22, 2011

PEOPLE QUESTION EXPERTS ON SAFETY OF NUCLEAR PLANTS

QUESTIONS TO THE EXPERT COMMITTEE ON KUDANKULAM NUCLEAR PLANT BY THE PEOPLE

AS  AN IRRITATED SNAKE  KILLS A MAN, NUCLEAR PLANTS SILENTLY  KILL  MANKIND AND NATURE FOR  FINANCIAL GAINS BY CONTRACTORS,OFFICIALS& POLITICIANS ?
Nuclear Plants are just silent killers of man and Nature created by the GOD. In nature the Uranium ore contains 99.3% of Uranium-238 and the remaining 0.7% is Uranium-235.  Uranium-238 and Uranium-235  in nature are least harmful.  But business people and other vested interests dig the iron ore and  convert  the least harmful Uranium-235  into the fuel form of Uranium-235  by purifying it to make a fuel by enriching it to about 4% of Uranium-235 that is packed in pellets and inserted into the core of the nuclear reactor for producing both electricity and material for making the bombs.   The reactor  when the nuclear atom is given a blow  by a neutron, enormous heat and other poisonous Radio-active atoms like Xenon, Barium, Cesium, Strontium, Plutonium and other dangerous radioactive substances are produced.  These radioactive substances are discharged into the air and water by several ways and  when they enter into the environment consisting of air, water and soil and foods like vegetables, fishes, prawns they ultimately get into human beings and produce cancers and birth defects in generations of people for many decades to come.  These poisonous radioactive substances  destroy natural and human life and culture and convert lands upto hundreds of kilometers into permanent nuclear burial grounds for ever.
How harmless Uranium ore materials in nature are converted into destructive and killer materials by man can be understood by the following simple example. For instance king cobras live in nature in anthills in forests and lead their normal life peacefully by catching their prey for food during nights But greedy people go and poke their iron rods into their abodes and disturb the Cobras when they become angry and bite the trespassers to inflict death over them by their poisons.   Similarly, the selfish people are mining the harmless Uranium and converting it into harmful  Enriched Uranium and then using it to produce electricity by means of the Nuclear plants and in the process they are producing Radioactive pollutants that poison man and nature slowly due to routine releases of radioactivity into the environment.  In course of time if an accident occurs in the Nuclear plant due to several reasons like in Fukushima or Chernobyl, the poisonous pollutants are thrown into the atmosphere and they kill thousands of people slowly and inflict cancer to millions of people living downstream upto hundreds of Kilometers as in case of Fukushima and Chernobyl accidents. The Nuclear plant operators are misleading the public by stating that Nuclear power is safe and cheap just like the medical representatives of various pharmaceutical companies praise before the doctors about the virtues of their medical tablets and tonics as part of their sale promotion activity the nuclear authorities are praising the nuclear plants as safe and cheap energy producers which is wrong.  This misinformation is dangerous to public health and welfare because in European states almost all people agree that safety of Nuclear (power is a Myth as accepted by Angela Merkel, Chancellor of Germany. She had consulted the genuine experts on nuclear plants and realized that nuclear safety is a myth and ordered for gradual closure of all the nuclear plants in Germany.  If Indian Prime Minister and Union Cabinet Ministers including the Chief Ministers of the state want to know the truth about the safety of the nuclear power plants they must go and visit advanced countries like Germany and Japan  and discuss the issue with foreign experts  so that they can refrain from promoting nuclear plants as is done by the peoples leader like Mamata Banerjee, Chief Minister of West Bengal.   For more scientific details see the above web sites on this topic prepared by independent experts.

Environmental Impact Analysis report are fabricated by consultants according to the national Green Tribunal and also according to the Chief Justice of India, S.H.Kapadia  who said “If you leave report preparation to the project proponent, I am sorry to say the person who pays will get the answers he asks for” and hence he called for a change in the system of preparation of EIA reports for the development projects.  See website:  http://www.thehindu.com/news/national/article2886141.ece
 1 (a)  According to US Nuclear Regulatory Commission the standards of safety for Nuclear Power Plants require preparation of Environmental Assessment Report including Risk Analysis, Nuclear accident scenario, Emergency preparedness plans and Disaster management reports for nuclear accidents caused due to several reasons including terrorist attacks and security threats.           
                  http://www.fas.org/sgp/crs/misc/RL33558.pdf 
 (b) Have similar reports been prepared for the Kudankulam Nuclear plant by the Nuclear Power Corporation of India and the Union Government. If, yes, place the reports before the people for obtaining their consent?

(2) (a)   Environmental Impact Analysis and Emergency preparedness plans have to be prepared and  circulated for a public hearing as per Environmental Protection Act regulations and guidelines issued by the National Disaster Management organization under the Chairmanship of the Prime Minister of India?      
http://envfor.nic.in/legis/eia/so-60%28e%29.html                                                                   
   http://saarc-sdmc.nic.in/pdf/india/file6.pdf 
The nuclear plant at Kudankulam is operated by the authorities who violated the Environmental Safety Standards by avoiding the preparation of Environmental Impact Assessment reports, Emergency preparedness and disaster managment reports for nuclear accidens which have to cover planning zones upto 80kms as per US standards and upto 100kms as per standards followed in Finland for implementation of the Emergency Action operations to safeguard the interests of public health and the environment for places upto Tirunelveli and Polayamkot in case of Tami Nadu and upto Trivandrum in case of Kerala state depending upon the wind flows during the time of the nuclear reactor accident as indicated in the main website
http://tshivajirao.blogspot.com/2011/10/kudankulam-nuclear-plant-explosion.html 
 http://tshivajirao.blogspot.com/2011/10/violation-of-nuclear-accident-emergency.html
       (b)(1) Did the Kudankulam nuclear plant authorities prepare such environmental Impact Assessment reports as per the rules of the Environmental Protection Act, 1986 and submitted the detailed reports, the damaging impacts  of the proposed nuclear plant on the environment including the risk analysis ,nuclear plant accident scenario, Emergency preparedness plans and presentthem for a public hearing as per rules and taken the consent of the people likely to be effected by the emissions of pollutants from the plant during its routine operations and also due to a maximum credible accident caused by several reasons including internal sabotage, earthquakes, cyclones, terrorist attacks, aeroplane crashes or other hazards like Tsunamis and flooding? 
(2)  What remedial actions can be taken even at this stage to prepare the disaster management, risk analysis and emergency preparedness plans for nuclear accidents with their zone of influence extending upto 100kms from the plant?  What actions can be taken to create awareness among the people for enlisting their cooperation in organising mockdrills for sheltering and emergency evacuation within 2 days of the accident? What other measures can be taken to protect the cattle, the agriculture products from getting contaminated by the radioactive fall out?  What are the costs of economic damage consequent to implementation of the emergency preparedness measures/

3 (a) Is it not a fact that for the maximum credible anticipated nuclear accidents the US Regulatory commission prepares the emergency planning zones for 2 regions namely Plume Exposure Pathways (EPZ-I) zones covering a distance upto 16km downwind of the nuclear power plant.  Predetermined protective action plans are in place for this EPZ and are designed to avoid or reduce dose from potential exposure of radioactive materials. These actions include sheltering, evacuation, and the use of potassium iodide where appropriate .
The second zone, known as the ingestion exposure pathway (EPZ-II) zone covering a distance upto 50miles or 80km from the Nuclear plant.  Predetermined protective action plans are in place for this EPZ and are designed to avoid or reduce dose from potential ingestion of radioactive materials. These actions include a ban of contaminated food and water. See website
    (b) Have such emergency planning zones prepared for nuclear accidents in USA are being implemented for the nuclear plant at Kudankulam?  Such plans are essential for the public health and Environmental Protection standards in India and  have to be more stringent for Indian people than even for the Americans who have with better nutritional and health standards.
( c) Have the lakhs of people of Tiruneveli city and district  (in case of accident during southerly winds)  /Trivandrum city and districts (in case of accident during southeasterly winds) been told that in case of an accident, they have to be evacuated and relocated in safer places for twenty years?
(d) Have lakhs of people downstream of the reactor in Tamil Nadu ( in case of accident during southerly winds) and Kerala (in case of accident during southeasterly winds) to be evacuated and relocated in safer places  for 5 to 10 years for some villages and towns upto 110km from the plant and  other villages and towns upto 170km for 1 to 4 years downstream of the plant. 

4 (a) According to the National Disaster Management Report, Union Ministry of Home Affairs, (August, 2004) Development cannot be sustainable unless Disaster Management is built into the Development process.  The approach for disaster management is translated into a natural disaster management road map covering institutional mechanisms including prevention, early warning, disaster mitigation, preparedness and emergency response through inputs from National, state and District levels as identified and listed in the road map contained in the official website.
http://saarc-sdmc.nic.in/pdf/india/file2.pdf The procedures to be followed  for disaster management as stipulated by the Government of India are naturally applicable for the development project pertaining to Kudankulam nuclear plant.
     (b) In the case  of handling the emergency due to a maximum credible accident at Kudankulam nuclear plant, what are the actions taken by the Union Government and the nuclear plant management authorities to enlist  the active participation of the Tamil Nadu state Government, the regional District collectors and the local Panchayat officials including the police, defence and other concerned agencies in chalking out a road map of disaster management for the nuclear plant at Kudankulam?  If the detailed reports on the involvement of the state and central Government organizations for this disaster management are prepared, these reports may be made available to the people for creating the required awareness of the problem among them and for enlisting their whole hearted cooperation in disaster management and for protecting their health and their lives and properties in the regions.

5 (a) The economic damaging costs of the 1100 MW nuclear plant accident postulated for the Sizewell reactor [about 150km , North East of London] were estimated in 1983 at £800 million
    (b) Have such economic costs of damage been made for a maximum credible accident for the 1000 MW nuclear power plant proposed at Kudankulam for Tamil Nadu (in case the accident occurs during southerly winds) and Kerala state (in case the accident occurs during southeasterly winds)?

6 (a) The costs of decommissioning of a nuclear plant in USA have been estimated at $500 millions.   http://www.fas.org/sgp/crs/misc/RL33558.pdf 
   (b) Has a similar estimated cost of decommissioning of the Kudankulam reactors at the end of their life have been made and presented to the people in India for their consent?

 7.(a) The amount of compensation for victims of nuclear accidents to be paid in some countries is estimated to range from $300 million to $375 million by the nuclear plant operators while the total damaging costs is estimated at $ 12000 million under the Prince Anderson Act of USA. In India it is estimated that the accident liability is proposed to be limited to a small amount of Rs.1500 crores by the nuclear plant operator/supplier in India while a major amount of compensation to the victims is proposed to be paid by the Union Government by diverting the poor tax payers money and thereby provide huge subsidies for the foreign contractors and the Indian operators to the detriment of public interest as already experienced in the case of Bhopal disaster.
    (b) Did the Union Government take the consent of the people of India for making such efforts to over burden the poor tax payer to subsidize the enormous costs of the hazardous nuclear power.?

8 (a) MIT experts in their report on nuclear energy warned the industry that in order to ensure safety there must be continuous training of nuclear plant workers to continually observe and evaluate the emerging safety problems in the operation,and maintenance of the reactors.  Since India is importing different kinds of modern reactors from different countries and India does not have the required scientific and technical man power to operate the reactors safely
    (b) Does the Government of India and the nuclear establishment authority realize that some of these advanced reactors are not fully tested even in their countries of origin and those countries also do not have properly trained and experienced persons there is very little chance either to import the man power from the concerned foreign countries or to send Indians for training to those countries for proper training.  Under these circumstances how can the Indian Government and nuclear establishment import such modern reactors without proper working knowledge about them and at the same time assure the people of India that these reactors can be operated and maintained properly without compromising on safety standards.  Since an automobile Engineering Professor may not be a good car driver and an experienced car driver may not be a good teacher of Automobile Engineer. It is very difficult to ensure harmonious operation and maintenance of a new machine by a new mechanic without proper reconciliation between the principles of the design of the plant and the mechanics of its operation.  What can be done to ensure safety at Kudankulam reactors?

9(a) In order to determine the frequency of nuclear accidents we depend upon either the historical experience or probabilistic risk assessment.  In USA since 1957 Light Water Reactors are working with a total experience of 3700 reactor years till today and there was one reactor core damage accident at Three Mile Island and hence the core damage frequency of American reactors is one in 3700 reactor years on average[.for 104 Reactors]
For probabilistic Risk Assessment (PRA) the method identifies possible failures in the reactor like pipe breaks or loss of reactor coolant flow and then traces the sequence of events that follow and finally estimates the likelihood of such failures resulting in core damage. 
 PRA includes both internal events and external events like natural disaster, experts, estimate PRA for core damage frequency at 1 in 10000 reactor years for reactors in USA, with regard to global reactor growth in 50 years from 2005 to 2055 both historical and PRA data show unacceptable accident frequency estimated at 4 and one major accident may occur before 2055 as per estimates by experts.
(b) Under the above circumstances how can Indian Government take a calculated risk to opt for nuclear power plants knowing that they are risk prone and highly costly as compared with natural gas or thermal coal?

10(a) In the case of the new reactors the designs use passive and active features to enhance reactor safety.  Passive systems use stored energy for pumping either by means of pressurized tanks or by gravity acting on water in elevated times (See website:
They substitute for motor driven pumps ultimately driven by emergency diesel generators and can thereby remove the risk of failure of diesel generators  to start when needed,, i.e. during a station blackout.
(b) But when these advanced reactors are subjected to internal sabotage, terrorist attacks or aeroplane crashes or bombing as had happened in Washington in September,2001, see web
http://en.wikipedia.org/wiki/Timeline_for_the_day_of_the_September_11_attacks  how can the Government and the nuclear plant authorities prevent a nuclear plant explosion even at this new generation of advanced nuclear reactors at Kudankulam.

11(a) There is a public demand for the conversion of the Kudankulam Nuclear power plant into either a gas based, lignite or coal based thermal plant because the people believe that in order to protect the quality of the marine  fishery resources which form their bread and butter that ensures their right to livelihood and right to life, this transformation of the nuclear plant into a thermal plant is in order. The people are confident to get the environmental damages minimized by employing state of art technology for the thermal power plants and hence their demand is justified.  Moreover the latest expert committee report from the Massachusetts Institute of Technology, USA (2009) shows that nuclear power is not only highly hazardous but also more costly because it is estimated that one KWh costs about $0.08 for nuclear power and only $0.05 for either coal or natural gas based power. 
   (b) In the light of the public demand for more safer and economical sources of energy why should the Government of India or the state Government accept this just demand of the people to abandon riskiest nuclear power plant in preference to a gas based or coal based thermal plant by utilizing the infrastructure created for the nuclear plant at Kudankulam, as the best alternative that should have been suggested as per the guidelines specified in the proforma under the Environmental Impact Assessment report.
http://moef.nic.in/legis/eia/so1533.pdf (page 33 Appendix-III alternatives to be suggested)


12(a) India is working with different kinds of nuclear power plants like Boiling Water Reactors based on American models at Tarapur supplied by United States,  Pressurized Heavy Water Reactors (PHWR) at Kalpakkam and other stations based on Canadian models, VVER reactors at Kudankulam based upon Russian models.  Consequently there are bound to be major variations in the procedures followed for construction, operation, maintenance, storage of wastes and decommissioning including safety and disaster management and waste disposal including reprocessing of wastes and recycling and reuse.
b) What are the various methods adopted by the Department of Atomic Energy for ensuring uniform standards of safety management, reactor monitoring, waste management, waste storage facilities, monitoring and management and emergency preparedness and implementation at these different plants?

13(a) It is reported that in some countries with imported reactors from foreign countries the fuel is often imported from the concerned foreign countries and the spent fuel is sent back again to the same countries for reprocessing, reuse and disposal.
(b) What methodologies are followed in India in case of the different reactors imported from different countries for the required fuel supplies and for reprocessing spent fuels from different reactors?  Are there any problems like nuclear incidents and accidents during the handling, transportation and  reprocessing of these nuclear materials that cause public health hazards?

14 (a) As per the newspaper report, the Hindu dt. 15, July, 2011 the disaster management even in the National capital of Delhi is in shambles and the terrorists  attacks are repeated because of the mileage the terrorists are able derive since the Disaster management work is mired in red tape with bureaucratic ego multiplicity of authority and lackadaisical approach towards carrying out even basic task (for promoting environmental safety) and public safety, like mock-drills making a mockery of entire rules and regulations under the Disaster Management Act 2005.
(b) Under such poor work culture in the Indian Environment, what kind of guarantee can the expert committee members, nuclear plant authorities, Tamil Nadu State Government and the Union Government can provide for ensuring public safety and environmental safety and preventive management and control methods for the safety of the terrestrial and aquatic ecological systems in and around the nuclear plant for distances upto hundreds of kilometers in case of a nuclear accidents .

15(a) For compensating the victims of Fukushima reactor accident, Japan Government and the nuclear plant operators are taking adequate legislation to pay very heavy amounts towards compensation ranging from an amount of Rs.3 lakh crores to Rs.5 lakh crores over a period of 2 to 3 years or more.
b) Has the Tamil Nadu state Government the Union Government and the nuclear plant authorities have taken steps to take insurance policies and pass laws to cover costs of compensation for the Kudankulam nuclear plant to an extent of Rs.5 lakh crores with the approval of the people of the state and the nation as per democratic norms governing a social welfare state?
16.a)   Union Government has got civil liabilities for nuclear damage Act passed in September 2011 and that compensation will be paid to the victims of nuclear accidents under different stages with the funds being paid by the industry (Rs.1500 crores /US$334.5million) the Union Government and also from International funding.  The nuclear reactors may cause accidents either due to faults of the designs and equipments provided by the suppliers or due to mistakes or errors committed by the plant operators or by a combination of mistakes committed by both the suppliers and the operators.
b) (1) In the event of incidents and accidents in operating such nuclear power plants how are the costs of damages shared between the suppliers, the operators, the concerned state Government, the Union Government and the other International organizations like International Atomic energy Agency? 
(2) To what extent such damage costs influence the increase in the cost of living of the common people of the concerned state and the country?
(3) How does the Nuclear Liability Act 2011 protect public interest if its implementation will let free the manufacturer, supplier and also the operator i.e. Nuclear Power Corporation of India(NPCIL) legally and to a large extent financially as well?
(4) If the Nuclear Liability Act does not allow the victims to sue the manufacturers and suppliers of nuclear plants which may cause any accident how does it protect the rights of the people of India guaranteed under the constitution?
(5) If under the nuclear liability Act 2011 according to clause 7 the operator pays compensation upto Rs.500 crores to the victims and the Union Government will pay additional amount.  But the foreign companies liability is limited to Rs.1500 crores if there is a written contract.  Is it justified in public interest?
(6) The Japanese Government proposes to pay Rs.3 lakh crores for victims of Fukushima accident and the Price Anderson Act in USA compensates victims for about 60,000 crores  how can justice be done to Indians likely to be victims of a nuclear plant accident.


Tuesday, October 18, 2011

WHY NUCLEAR ACCIDENTS ARE DIFFICULT TO BE AVOIDED?


Prof.T.Shivaji Rao, Director, Center Environmental Studies, GITAM University, Visakhapatnam
http://www.popsci.com/science/article/2011-03/whats-happening-japans-nuclear-power-plants 
How Nuclear Plants Work and How They Fail
http://nuclearinfo.net/Nuclearpower/TheScienceOfNuclearPower [Basics of fission,energy]

http://tshivajirao.blogspot.com/2011/09/why-indian-nuclear-plants-are-bound-to.html 
http://www.bbc.co.uk/news/world-13047267 [ Hiastorical Nuclear Accidents]
http://www.thehindu.com/sci-tech/article2755175.ece  [Why Fukushima failed in Response systems]

 
AS  AN IRRITATED SNAKE  KILLS A MAN, NUCLEAR PLANTS SILENTLY  KILL  MANKIND AND NATURE FOR  FINANCIAL GAINS BY CONTRACTORS,OFFICIALS& POLITICIANS ?
Nuclear Plants are just silent killers of man and Nature created by the GOD. In nature the Uranium ore contains 99.3% of Uranium-238 and the remaining 0.7% is Uranium-235.  Uranium-238 and Uranium-235  in nature are least harmful.  But business people and other vested interests dig the iron ore and  convert  the least harmful Uranium-235  into the fuel form of Uranium-235  by purifying it to make a fuel by enriching it to about 4% of Uranium-235 that is packed in pellets and inserted into the core of the nuclear reactor for producing both electricity and material for making the bombs.   The reactor  when the nuclear atom is given a blow  by a neutron, enormous heat and other poisonous Radio-active atoms like Xenon, Barium, Cesium, Strontium, Plutonium and other dangerous radioactive substances are produced.  These radioactive substances are discharged into the air and water by several ways and  when they enter into the environment consisting of air, water and soil and foods like vegetables, fishes, prawns they ultimately get into human beings and produce cancers and birth defects in generations of people for many decades to come.  These poisonous radioactive substances  destroy natural and human life and culture and convert lands upto hundreds of kilometers into permanent nuclear burial grounds for ever.
How harmless Uranium ore materials in nature are converted into destructive and killer materials by man can be understood by the following simple example. For instance king cobras live in nature in anthills in forests and lead their normal life peacefully by catching their prey for food during nights But greedy people go and poke their iron rods into their abodes and disturb the Cobras when they become angry and bite the trespassers to inflict death over them by their poisons.   Similarly, the selfish people are mining the harmless Uranium and converting it into harmful  Enriched Uranium and then using it to produce electricity by means of the Nuclear plants and in the process they are producing Radioactive pollutants that poison man and nature slowly due to routine releases of radioactivity into the environment.  In course of time if an accident occurs in the Nuclear plant due to several reasons like in Fukushima or Chernobyl, the poisonous pollutants are thrown into the atmosphere and they kill thousands of people slowly and inflict cancer to millions of people living downstream upto hundreds of Kilometers as in case of Fukushima and Chernobyl accidents. The Nuclear plant operators are misleading the public by stating that Nuclear power is safe and cheap just like the medical representatives of various pharmaceutical companies praise before the doctors about the virtues of their medical tablets and tonics as part of their sale promotion activity the nuclear authorities are praising the nuclear plants as safe and cheap energy producers which is wrong.  This misinformation is dangerous to public health and welfare because in European states almost all people agree that safety of Nuclear (power is a Myth as accepted by Angela Merkel, Chancellor of Germany. She had consulted the genuine experts on nuclear plants and realized that nuclear safety is a myth and ordered for gradual closure of all the nuclear plants in Germany.  If Indian Prime Minister and Union Cabinet Ministers including the Chief Ministers of the state want to know the truth about the safety of the nuclear power plants they must go and visit advanced countries like Germany and Japan  and discuss the issue with foreign experts  so that they can refrain from promoting nuclear plants as is done by the peoples leader like Mamata Banerjee, Chief Minister of West Bengal.   For more scientific details see the above web sites on this topic prepared by independent experts.

Environmental Impact Analysis report are fabricated by consultants according to the national Green Tribunal and also according to the Chief Justice of India, S.H.Kapadia  who said “If you leave report preparation to the project proponent, I am sorry to say the person who pays will get the answers he asks for” and hence he called for a change in the system of preparation of EIA reports for the development projects.  See website:  http://www.thehindu.com/news/national/article2886141.ece
 Intelligent political leaders like the former Japanese Prime Minister Kao and the German Chancellor Angela Merkel thoroughly examined the causes for the nuclear accidents at Three Mile Island in USA and Chernobyl in Soviet Union and Fukushima in Japan and discussed in depth about the problems of complicated nuclear safety systems ultimately concluded that nuclear safety is a cent percent myth.   They realized that the safety of the people and the security of their nations can be ensured in  the long run by gradual elimination of nuclear power plants and by resort  to the highly inexpensive, safer, people friendly and environmentally sound renewable energy sources based upon the solar energy, wind power, bio-energy, natural gas, Geo-thermal and thermal energy. But  due to lack of sound advice from honest Indian scientists and technologists , the Indian Prime Minster is misguided by the business interest behind the nuclear industry to promote large scale nuclear power plants by importing the technology from foreign countries and dump the reactors over the heads of unwilling people of India in states like Haryana, West Bengal, Gujarat, Madhya Pradesh, Rajasthan, Andhra Pradesh, Maharashtra, Karnataka, Kerala and Tamil Nadu where public agitations and demonstrations are going on endlessly.  The Prime Minister is not an expert on nuclear safety as envisaged by Sec 45 of the Indian Evidence Act and still is making false arguments that the Indian Chief Ministers and the public must accept nuclear technology by promising them that he will ensure safety of the reactors and that there is no alternative to nuclear power .  These arguments of the Prime Minster to promote nuclear plants against public health and welfare and national economy are false because even western countries like USA and Europe have recently found that nuclear power is not only a killer agent but also highly uneconomical as compared to the safer and economical renewable energy resources as can be seen from the following websites.
The common people of India must educate the educated people so that they can exert pressure on the elected representatives in the state legislature and in the parliament  so that the state and central governments abandon nuclear power and opt for the safer and economic renewable energy sources.  The Inernational Atomic energy Agency published hundred nuclear accidents involving nuclear plants worldwide during the past 50 years and hence nuclear power cannot be considered safe.  Moreover mechanical or electrical failures human errors or terrorist attacks can cause explosions at nuclear power plants in addition to those caused by flooding, earthquakes and Tsunamis. 
According to the Belgium Environmental activist Daniel Tanuro , Nuclear means Catastrophe. While writing on environmental aspects of nuclear power he says that it poses an unacceptable risk.  In his own words the arguments run as follows:  
"After the Chernobyl disaster, nuclear advocates have said that poor Soviet technology, poor safety standards and the bureaucratic nature of the system were the basis of the accident. If we are to believe them, nothing similar could occur to plants based on good capitalist technology, especially not in “democratic” countries where the legislature shall take all necessary security measures at all levels. Today we are seeing that these claims are not worth a damn.
Japan is a country of high technology. Fully aware of the seismic risk, the Japanese authorities have imposed strict standards for plant construction. The reactor 1 Fukushima even included a double safety device, with some generators supplied with fuel and others battery operated. Neither has done any good, because the most sophisticated technology and most stringent safety standards will never provide an absolute guarantee, given the possibility of natural disasters or possible criminal acts by insane terrorists (not to mention human error). We can reduce the risks of nuclear power, but we can not remove them entirely. If it is relatively small but the number of plants increases, as is the case now, the absolute risk may increase.
It is very important to make the point that this risk is unacceptable because it is of human origin, it is preventable, and it is the result of investment decisions made by small circles of people, focused on their profits without proper democratic consultation of the people. To write that “nuclear accidents (sic) in Japan are far from costing the loss of as many lives as the tsunami,” as it said in Belgium’s Le Soir editorial (14 March), is to ignore the qualitative difference between a unavoidable natural disaster and completely preventable technological catastrophe. To add that “like any complex industrial process, energy production from the atom has a substantial risk” (ibid.) also ignores the specificity of the nuclear risk, which includes the fact that this technology has the potential to wipe the human race off the face of the earth. We must relentlessly hunt down and expose these types of excuses, which reflect the enormous pressure exerted at all levels by the lobby of the nuclear industry".  
Nuclear Safety is a victim of inherently complex nuclear systems:  Safety of engineered systems are considered in terms of their reliable probabilistic estimate of risks and the redundancy  systems incorporated in the design stages and yet these goals of safety are virtually impossible to attain in case of nuclear reactors which are complex systems.  A complex system  consists of several inter connected parts that are linked up to work as a whole unit that exhibits one or more behaviourally patterns among several possibilities which cannot be visualized from the operational behavior pattern of the individual component parts.  Consequently one cannot estimate visualize the probabilistic estimates of risk due to the sheer number of potential behaviourel pathways.   Even if some patterns are deduced they are always subjected to controversy because their assessment is often based on subject to biases according to the specializations of the decision makers.  Since the nature of interactive complexity of a system implies that it is very difficult to produce totally error free designs.  Moreover it is virtually impossible to train human operators to handle the critical problems that arise when machines processes and human decision making processes start interacting in unpredictable ways at a time when it is difficult to predict a failure in advance.  Thus nuclear safety is not just about good engineering practices such as designing efficient or save machines alone.  In complex system such as nuclear power plants safety is mostly about repeated experimentation and understanding of the constantly evolving human behaviourely pattern and putting a great deal of creative thinking  in designing human-machine interfaces, institutional norms, cultures and working process.  Although the Government of India is planning large scale import of giant reactors of different kinds from different countries.  It is difficult to implement a safety regimes from other countries in India because nuclear power management organizations involving human actors are at their core culturally rooted and hence we Indians have to invent our own safety regimes even as we plan to learn from experiences abroad and for this purpose we have to create analytical cultures with interdisciplinary approach and we have to breed new kinds of professionals who can constantly think out of the box.  The nuclear energy management sometimes faces the problem of balancing between the management groups based on official hierarchies and decision making bodies on the one side and other operational groups who respond to rapidly changing accident prone scenarios on the other side.  It is easy for nuclear establishment to management comfortably the management group based on official ranks and rule based procedures. But since nuclear plants are interactivity complex and the nuclear accidents are due to multiple causes it is difficult to design effective management systems so that the different subgroups within the broader nuclear organization interact and collaborate meaningfully at the critical times of taking decisions on preventing, controlling and managing nuclear reactor safety at public safety.  For nuclear establishment to work effectively 3 important measures have to be taken.  Firstly from the pervading mess of corruption and inefficiency that characterize most of the Governmental institutions in India and it is very difficult to choose the right kind of leadership unless one selects top executives from outside the present establishment which usually promotes in breeding which is a sign of inefficiency. Secondly such executives have to be empowered to develop and build innovative processes and procedures of management which should not be influenced by political interference or indiscriminate trade unions.  Encouragement must be given to the senior and junior operators for reporting of perceived threats to safety problems and the whistle blowers must be protected and they should not be neglected.  Finally there must be a strong legal responsibility culture that does not impose punishments without reason but ensures accountability and conscientiousness among the workers.  Another crucial aspect of nuclear safety deals with communications and interactions between the nuclear establishment, the nuclear plants management and the surrounding communities.  The nuclear authorities must take the local people into confidence and treat them as co-partners as public cooperation is essential for the successful operation of a nuclear plant in the long run and hence trust transparency and consultation must governed their interactive relationships.  Unfortunately the nuclear establishment in India is known to hide the facts and mislead the public on nuclear safety problems.  For instance on the issue of Fukushima nuclear accident Dr.S.K.Jain CMD of Nuclear Power Corporation is reported to have told economic times on 15-3-2011 as follows: “There is no nuclear accident or incident in Japan’s Fukushima plants.  It is a well planned emergency preparedness programme which the nuclear operators of the Tokyo Electric Power Company are carrying out to contain the residual heat after the plants had an automatic shutdown following a major earthquake.”   Equally incredible was a quote in the same news report, this time attributed to Dr.Srikumar Banerjee, the Chairman of Atomic Energy Commission, who is quoted as saying “Because of the unprecedented Tsunami, the external power as unavailable for the emergency diesel generators to take over during the process the pressure was building up in the reactor which had to be released in a phased manner, that resulted in the exothermic reaction due to hydrogen generation.. It was purely a chemical reaction and not a nuclear emergency as described by some section of media.”Evidently such false observations frequently made by senior officials of the nuclear establishment do not promote public trust.  Infact most of the people in India do not know how the nuclear plants work and how they fail sometimes and hence refuse to accept about the absolute safety of nuclear reactors particularly when they have seen with their eyes how man-made causes were responsible for the nuclear plant explosions at Chernobyl in Russia in 1986 and at Fukushima in Japan in 2011.  Inspite of the fact that Japan is known to be a world class leader in nuclear technology. 

US ACCIDENTS:
US commercial nuclear reactors reported nearly 3,000 "mishaps" and at least 430 emergency shutdowns in 1987 according to "Public Citizen's" a latest Annual Nuclear Power Safety Report. According to US Nuclear Regulatory Commission (NRC) in records compiled by the organization, at least 493 violations of safety regulations occurred at the plants during that year. Further, in 1987, accidents, near-accidents, emergency shutdowns, and instances of lax management occurred daily at the 109 licensed-to-operate nuclear reactors located in 37 states across the country. The report notes that much of the data which the NRC chooses to make public represents only the "tip of the iceberg". The NRC, for instance, refuses to release key safety data such as "single-component failure" records and a comprehensive listing of all emergency plant shutdowns. In addition, the agency's safety regulations by nuclear utilities are incomplete and contradictory. The NRC also apparently lacks current information on such basic safety matters as plant-by-plant evacuation time estimates and the agency claims that it has been unable to access its own data base on individual plant mishaps for several months and has failed to obtain detailed records on the number of accidents at each reactor.
Among the findings of the Public Citizen study:
** There were at least 2,940 mishaps at US commercial reactors in 1987. These so called "mishaps" are Licensee Event Reports made to the NRC by the nuclear utilities themselves; according to NRC guidelines, they provide descriptions of "potentially significant safety events" that "might lead to serious accidents". The figure represents an average of 27 mishaps at each reactor (a number unchanged from the previous year).
Personnel error was involved in 2,197 (74%) of them. Many other mishaps, including some of the most serious accidents of 1987, were apparently not reported.
** Sixteen reactors experienced over 40 mishaps each.
The NRC reported 430 "scrams" (emergency plant shutdowns) - an average of 4.4 per operating reactor. Newer reactors averaged 11 scrams each during 1987. However, these figures may understate the actual number by 25-45%. The operating plants given the lowest overall management ratings by the NRC during 1987 were allowed to continue operating even though they were given poorer ratings than the Peach Bottom reactors 2 and 3 in Pennsylvania, which the NRC ordered closed in March 1987 for assorted management lapses including workers sleeping on the job.
Almost 14,500 metric tons of highly radioactive spent fuel is now stored at over 60 nuclear plant sites in large pools of water. Originally designed as temporary storage facilities, these fuel pools are experiencing a number of serious leaks and pose the risk of a major accident.
** Dozens of other mishaps occurred at nuclear plant sites in 1987. These included acts of vandalism and sabotage, unauthorized possession of firearms on plant sites, and a three-fold increase in the number of reported instances of drug use among nuclear workers.  ("Public Citizens Critical Mass Energy Project"; WISE-307 24/1/89).
Public trust cannot be achieved by the state and central Governments when democratic expression of fear and concern are dealt with by using police force as recently witnessed in public demonstrations against nuclear plants in several places including Jaitapur in Maharashtra and Kudankulam in Tamil Nadu.  If nuclear plants are being established to promote public health and welfare, the concerned people who stand to gain it benefits must naturally be treated as stakeholders and if there were any risks associated with the venture the people must be told about the environmental impacts including the advantages and disadvantages so that the people can welcome the plants wholeheartedly if the benefits far out weight the damages due to the industry.  If the damaging costs are more than the benefits the people themselves may come out with good suggestions on alternate methods of achieving the same energy through other renewable sources based on solar power, wind energy, natural gas, bio-energy, hydro-power, lignite, Geo-thermal, thermal and coal energy sources as suggested by the chancellor of Germany Angela Marcel who took a decision to phase out nuclear plants in her country and opted for more economical and safer, renewable energy sources as can be seen from the websites.
At the present time the Union Government and the state Governments are misleading the public by giving false information even about the impacts of Fukushima nuclear catastrophe while the mass media from other countries including Japan are feeding the Indian public with more truthful information about the accident.  The Indian Government is not following the rules and regulations even in preparing the EIA reports on the different nuclear plants in different parts of the country and thereby they are hiding the true facts about the feasibility of disaster management reports for maximum credible accidents as envisaged by the Environmental Protection Act and also as per the guidelines followed by other countries in the world.  If Germany and other European countries are demanding for abolishing nuclear power plants and opting for safer and economical alternate energy sources as projected by the author in the article on this subject.  Indian people cannot be taken for a ride particularly when the right to life, the right to health and the right to livelihood are at stake for the present and future generations who are the heirs to the Indian ethos that believing sustainable development based on truthful and non-violence as enunciated by the Father of the Nation Mahatma Gandhi.
Emergency Planning Zones for nuclear accidents according to United States Standards:
To facilitate a preplanned strategy for protective actions during an emergency, there are two emergency planning zones (EPZs) around each nuclear power plant. The exact size and shape of each EPZ is a result of detailed planning which includes consideration of the specific conditions at each site, unique geographical features of the area, and demographic information. This preplanned strategy for an EPZ provides a substantial basis to support activity beyond the planning zone in the extremely unlikely event it would be needed.
The two EPZs are described as follows:
Plume Exposure Pathway EPZ
The plume exposure pathway EPZ has a radius of about 10 miles from the reactor site. Predetermined protective action plans are in place for this EPZ and are designed to avoid or reduce dose from potential exposure of radioactive materials. These actions include sheltering, evacuation, and the use of potassium iodide where appropriate. For more information, see Typical 10-Mile Plume Exposure Pathway EPZ Map.
Ingestion Exposure Pathway EPZ
The ingestion exposure pathway EPZ has a radius of about 50 miles from the reactor site. Predetermined protective action plans are in place for this EPZ and are designed to avoid or reduce dose from potential ingestion of radioactive materials. These actions include a ban of contaminated food and water.
http://www.nrc.gov/about-nrc/emerg-preparedness/about-emerg-preparedness/planning-zones.html
WHY NUCLEAR SAFETY IS  A MYTH AS ASSESSED BY GERMAN CHANCELLOR,Ms.ANGELA MERKEL and JAPANESEEx- PRIME MINISTER,KAO NAOTO
When the Swiss Government wanted to buy the US Reactors in 1973 , they demanded experimental proof that the dome containment would retain the radioactive pollutants released during a Loss of Coolant Accident (LOCA). Actual  Test is very expensive,Moreover, since an actual test would be more dangerous than nuclear bomb testing, assurances on reactor safety are entirely based on tests on paper using simulated mathematical models.
 As such test results can not take into account the different permutations and combinations of malfunctions from defective materials, mechanical or human errors, sabotage, bombing, terrorism, missile hits, aero-plane crashes etc. they become invalid.
In other words, nobody can do all the necessary testing nor even anticipate what kind of tests are needed. At best, the experts may be able to simulate and estimate the answers to some of the questions asked by the people but do the people know all the questions that are yet to be asked for making the reactors absolutely safe for all time for different Natural and Man-made errors? Hence the proof of reactor safety could not be given and still has not been demonstrated.
But when the tests on the Emergency core cooling system designed to flood the core during a loss of coolant Accident[LOCA] were run at the National Reactor Testing Station in Idaho, mechanical failures occurred. When the tests were run during 1970-71 all the six tests conducted by the Aero-jet Nuclear Company failed. Subsequent experiments at Oak-ridge National Laboratoreis indicated that the Zircaloy-clad fuel rods of the Light water reactors may swell, rupture and block the cooling channels, and thereby obstruct the emergency cooling water from reaching the core and such obstruction which holds back the emergency core cooling water leads to a catastrophe sometime or the other. Thus reactor safety is considered to be most often a myth!

About Me

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Born in 1932 at Mudinepalli, near Gudivada, Krishna Dist. Andhra Pradesh, received Bachelors degree in Civil Engg., from Viswesaraiah Engineering College, Banglore (1956) and Masters Degree in Environmental Engineering from Rice university, Houston, Texas, (USA) (1962), Ph.D (Hony). Former Head of the Department of Civil Engineering and principal of College of Engineering, Andhra university.Formerly Hony.Professor in Andhra University,Manonmanian Sundarnar University,JNT University. Fellow of the Institution of Engineers,India Recipient of the University Grants Commissions National Award "Swami Pranavananda Award on Ecology and Environmental Sciences" for the year 1991. Recipient of Sivananda Eminent Citizen Award for 2002 by Sanathana Dharma Charitable Trust, Andhra Pradesh state. Presently Working as Director, centre for Environmental Studies, GITAM University, http://www.geocities.com/prof_shivajirao/resume.html http://www.eoearth.org/contributor/Shivaji.rao