Showing posts with label radiation. Show all posts
Showing posts with label radiation. Show all posts

Saturday, April 15, 2017

Mars Mission Poses Deadly Radiation Risks

Subtitle: No Known Preventive Measures for Deep Space Radiation

The recent article, "NASA Likely to Break Radiation Rules to Go to Mars," see link, gives an overview of the radiation hazards a manned Mars mission will encounter. 

Excerpt:  “Based on current knowledge, astronauts on a mission to Mars would exceed NASA’s career radiation dosage limits. Although the Agency plans to continue efforts to develop countermeasures to address the radiation risk, NASA is likely to seek an exception from the current standards for those that cannot be fully mitigated.”

Deep-space radiation in the form of galactic cosmic rays is deadly to humans.  The Sun's massive magnetic field deflects most such GCRs away from Earth; however the Sun's magnetic field is weakening.  NASA has various satellites "up there" that monitor such things.   

And, if death is not the immediate result, several other debilitating illnesses or diseases result: ". . .  cancer-inducing radiation can also cause cardiovascular and degenerative diseases—like cataracts, premature aging, and endocrine problems—a risk “of much greater concern than previously believed.” It can also rejigger the central nervous system, screwing with everything from cognition to spatial perception to hand-eye coordination. Then there’s the infertility, the cataracts, the slow wound healing, and the problems that astronauts could pass on to future children if they make it back from the long trip to Mars and manage to procreate."

SLB has a few earlier articles on a manned Mars mission, 

"Mars Colony - A Bad Idea"  see link

A portion of "A Week That Was July 2016" - excerpted below:

o  A serious doubt for the future of manned space exploration re-surfaced this past week, with evidence and a report that lunar astronauts suffer (and some have died) from much higher incidence of cardio vascular disease; almost none of the non-flying astronauts, nor the low-earth orbit astronauts have this; the explanation is exposure to intense deep-space radiation and ionizing high-energy particles (galactic cosmic rays) by those astronauts that flew past the Earth's Van Allen Belts and went to the moon.   This has deep implications for the proposed moon-orbiting manned space station, any manned Mars missions, and especially a Mars colony.   The long-term orbiting astronauts on the International Space Station provide valuable data on some medical aspects of space life, but that is all within the protective shield of the Van Allen Belts.  see link to Nature article on deep-space radiation effects on astronauts, "Apollo Lunar Astronauts Show Higher Cardiovascular Disease Mortality: Possible Deep Space Radiation Effects on the Vascular Endothelium"

Roger E. Sowell, Esq.
Marina del Rey, California
copyright (c) 2017 by Roger Sowell - all rights reserved


Topics and general links:

Nuclear Power Plants.......here
Climate Change................here  and here
Fresh Water......................here
Engineering......................here  and here
Free Speech.................... here
Renewable Energy...........here 


Saturday, June 14, 2014

Fukushima Children Showing Thyroid Cancer

Subtitle: Radiation-induced thyroid cancer rises among children

“The people, including children, are living in a highly contaminated area adjacent to the Fukushima plant. There have been some surveys that looked at what the consequences for kids will be. According to the survey, the past few years have seen an increase in diabetes, thyroid nodules and thyroid cancer among local children. Japan's Mainichi newspaper recently published a report which said that one in four children living in the disaster-hit regions needs mental care over problematic behavior. And the region will not be safe again for generations,”  -- Voice of Russia  see link

Nuclear power proponents insist that nuclear plants are safe, no one is harmed by their operation, yet studies like the one cited above clearly show that people are exposed to cancer-causing radiation.   In addition, stress over living in a region known to be contaminated with radioactive fallout from the meltdowns of 2011 requires mental care. 


For more on radiation-induced illness and sickness from nuclear power plants, see Article 19 of The Truth About Nuclear Power at this link.


Roger E. Sowell, Esq. 
Marina del Rey, California





Read more: http://voiceofrussia.com/radio_broadcast/no_program/273403296/


Tuesday, June 10, 2014

The Truth About Nuclear Power - Part 20

Subtitle: Chernobyl Meltdown and Explosion

This article 20 begins five articles on what may be the most serious nuclear plant disasters and near-disasters: Chernobyl, Three Mile Island, Fukushima, San Onofre, and St. Lucie.  Many
Radiation Plume from Chernobyl
credit: BBC
others could be included, from countries around the world.  One reference lists more than 80 serious nuclear power incidents.   The US’ Nuclear Regulatory Commission lists 70 incidents in the past four years in the US alone that required the NRC to send a special investigation team to the plant, or an augmented investigation team.   The Chernobyl article begins with a brief summary or overview of the facts, taken from the NRC's "Report on the Accident at the Chernobyl Nuclear Power Station 1986," then commentary afterward.

Previous articles on The Truth About Nuclear Power emphasized the economic and safety aspects by showing that (one) modern nuclear power plants are uneconomic to operate compared to natural gas and wind energy, (two) they produce preposterous pricing if they are the sole power source for a grid, (three) they cost far too much to construct, (four) use far more water for cooling, 4 times as much, than better alternatives, (five) nuclear fuel makes them difficult to shut down and requires very costly safeguards, (six) they are built to huge scale of 1,000 to 1,600 MWe or greater to attempt to reduce costs via economy of scale, (seven) an all-nuclear grid will lose customers to self-generation, (eight) smaller and modular nuclear plants have no benefits due to reverse economy of scale, (nine) large-scale plants have very long construction schedules even without lawsuits that delay construction, (ten) nuclear plants do not reach 50 or 60 years life because they require costly upgrades after 20 to 30 years that do not always perform as designed, (eleven) France has 85 percent of its electricity produced via nuclear power but it is subsidized, is still almost twice as expensive as prices in the US, and is only viable due to exporting power at night rather than throttling back the plants during low demand, (twelve) nuclear plants cannot provide cheap power on small islands, (thirteen) US nuclear plants are heavily subsidized but still cannot compete, (fourteen), projects are cancelled due to unfavorable economics, reactor vendors are desperate for sales, nuclear advocates tout low operating costs and ignore capital costs, nuclear utilities never ask for a rate decrease when building a new nuclear plant, and high nuclear costs are buried in a large customer base, (fifteen) safety regulations are routinely relaxed to allow the plants to continue operating without spending the funds to bring them into compliance, (sixteen) many, many near-misses occur each year in nuclear power, approximately one every 3 weeks, (seventeen) safety issues with short term, and long-term, storage of spent fuel, (eighteen)  safety hazards of spent fuel reprocessing, (nineteen) health effects on people and other living things, (twenty) nuclear disaster at Chernobyl, (twenty-one) nuclear meltdown at Three Mile Island, (twenty-two)  nuclear meltdowns at Fukushima, (twenty-three) near-disaster at San Onofre, (twenty-four) the looming disaster at St. Lucie, (twenty-five)  the inherently unsafe characteristics of nuclear power plants required government shielding from liability, or subsidy, for the costs of a nuclear accident via the Price-Anderson Act, and (twenty-six) the serious public impacts of large-scale population evacuation and relocation after a major incident, or "extraordinary nuclear occurrence" in the language used by the Price-Anderson Act.  Additional articles will include (twenty-seven) the future of nuclear fusion, (twenty-eight) future of thorium reactors, (twenty-nine) future of high-temperature gas nuclear reactors, and (thirty), a concluding chapter with a world-wide economic analysis of nuclear reactors and why countries build them.  Links to each article in TANP series are included at the end of this article. 

Overview, from NRC Report, Section 4.1 (pg 124)

(quote) “The accident occurred during a test of the turbine generator system.  This test was designed to demonstrate that following a reactor trip, with the resulting loss of onsite power and isolation of the steam supply to the turbine, the rotating inertia of the turbine generator would be sufficient to generate enough electrical power to energize certain safety systems until the diesel generator system could be started and accept the electrical loads.  This test had been performed earlier at similar plants (Russian).  The specific purpose of this test was to determine if a new generator magnetic field regulator would maintain the voltage output from the generator for a longer period.

In the process of establishing the test conditions for the reactor, the operators brought the plant to an unstable operating condition.  However, for a number of reasons, the operators chose to run the test from this unstable condition.  To prevent the reactor from automatically shutting down, the operators purposely bypassed several systems important to safety.  The role of the operator in this accident is discussed in Chapter 5.

With the safety systems bypassed, the plant was in an unstable and vulnerable condition.  The most prominent parameter of this unstable condition was the positive void reactivity coefficient.  This coefficient allowed the reactivity to increase as the volume of steam increased in the core.  Other significant parameters included the low initial power level, low subcooling, low initial steam void fraction in the core, fuel burnup condition, and control system characteristics.  The design characteristics of the Chernobyl plant are detailed in Chapter 2.

The initiation of the test caused the steam volume in the core to increase.  Under the unique test conditions (for which the plant was not designed), and with the safety systems bypassed, a significant insertion [? Increase?] of reactivity resulted.  The resulting power increase produced additional steam voids which added reactivity and further increased the power.  Evaluations to date indicate the reactor was brought to a prompt critical condition.  Assessment of Soviet (and other) analyses also indicates that the energy deposition in the fuel was sufficient to melt some of the fuel.   The analyses to date suggest the following possible sequence of events.  The rapid expansion associated with melting, quickly ruptured the fuel cladding and injected fragmented and molten fuel into the coolant channel.  The interaction of the coolant with the hot fuel fragments produced steam very rapidly.  The high temperatures and rapid production of steam quickly over-pressurized the pressure tubes in the core region.   The pressure tubes then failed and over-pressured the cavity region around the graphite blocks.  Sufficient force was generated to lift the top plate off the reactor and possibly to fail the reactor building and eject core material.  This postulated sequence of events can be associated with the first “explosion” heard by operators at the plant.  A second “explosion” was reported to have occurred approximately 3 seconds after the initial one.

Various speculations on the source of this noise include a second criticality, a hydrogen detonation, or even an echo or reverberation. 

In summary, the event was caused by a combination of procedural and management deficiencies, human errors, and unique design characteristics. “  (end quote)   see link

Analysis

For the non-technical readers on SLB, a brief deconstruction of the above is in order. The test was to determine if the generators had enough inertia to keep spinning and generate power, even though steam was shut off to the turbine, to keep emergency systems energized until the diesel-powered generators could be started and brought up to speed.  

The plan was to run the reactor at part-load, which would have tripped the existing safety systems into a shut-down.  The safety systems were therefore disabled.  However, the reactor load was far below the planned load.   The reactor went into a mode that had more steam bubbles than normal, which is dangerous because steam does not slow down fission products such as neutrons.  This is the "positive void reactivity coefficient" mentioned above.  Also, the operators pulled the control rods, almost all of them, out of the reactor.   The resulting power surge caused the reactor to go critical, which melted down part of the nuclear fuel and caused not only an explosion, but the graphite parts of the reactor to catch fire.   

Radiation Worldwide

The core explosion, fire, and residual heat from the burning reactor core (that lasted several days) released huge amounts of radioactive materials into the atmosphere.  The plume of airborne particles flew high above the Earth, in a westerly and northerly direction, and tripped radiation monitors in several countries as it circled the globe.   One of the first countries the plume reached was Poland on April 26 and 27, 1986.   Almost all of Europe was impacted with radiation levels many times higher than normal.  The radiation plume eventually reached almost every northern hemisphere country. 

Personally, I was working doing consulting engineering with a contract in West Germany near Dusseldorf.  I finished the initial visit by March 1 of 1986, then returned to the US to do the office work.  A second visit to Germany in July made me quite nervous, particularly in the food we ate while there.  Everyone was very upset over the radiation cloud that rained deadly particles down on the entire continent.  

From a nuclear power plant safety standpoint, the important point is that the nuclear power industry has always insisted that their power plants are safe.  Even after Chernobyl blew up, the argument was “well, that is a Russian design and nobody has any of those.  Besides, the operators went rogue and operated the plant improperly, which made it explode.  That can never happen here.”

The proper response is, “A nuclear plant can never be made fool-proof.  Fools are just too ingenious.”   As shown in part 16 of TANP, operators in western nuclear plants make plenty of mistakes, not only in design but in operation, training, maintenance, parts replacement, security measures, even mundane chores like tightening bolts to the proper torque. 

Health Issues

At Chernobyl, 28 workers died from acute radiation poisoning within 4 months of the explosion.  Many others have died since, but a direct link to Chernobyl radiation exposure is unclear.   The World Health Organization, WHO, estimates 240,000 workers were exposed to high levels of radiation while cleaning up the radioactive debris.  Another 346,000 people were evacuated and relocated away from the radioactive zone near the plant.  see link   

WHO states that greater incidence of thyroid cancer was caused by Chernobyl.   There also is almost a doubling of leukemia cases.    In addition, the radiation caused cataracts in the eyes, increased deaths from cardio-vascular disease, mental health and psychological trauma. 

UPDATE - 6/11/2014 

So much more could be written about the Chernobyl disaster.  In fact, an internet search turns up nearly 5 million websites with the term "Chernobyl."   Hundreds of books about Chernobyl have also been written.   Until the multiple-meltdowns at Fukushima, Japan in 2011, Chernobyl was the greatest nuclear disaster of all-time.  

From an institutional safety standpoint, Chernobyl refutes many of the nuclear proponents' arguments.  First, the plant was subject to regulations in its own country, the USSR.   International regulations apparently were largely ignored.  Who is to say that future nuclear power plant operators will not do something equally devastating, especially as nuclear plants are built in more and more countries?   

Nuclear apologists or proponents are fond of saying that modern plants are secure, have safety systems and backup systems, and have designs that would never allow such an event to happen again.  That is mere talk; as mentioned in the Conclusion below, it is only too easy for operators to disable safety systems or ignore warnings, and run the plant in manual mode.   What is also apparent from the NRC report linked above is the very, very rapid change from quasi-normal operation to reactor criticality, meltdown and explosion.  At Chernobyl, the change required only a few seconds.  Operators tried desperately to insert some of the control rods, but it was too late.  

It is also clear from the NRC even reports that many, if not all nuclear plants in the US run some of their systems in manual mode at times.  Nothing can be made to run forever, as parts degrade and fail and must be replaced or repaired.  A control system normally has an automatic mode and a manual mode, and only well-trained operators should be allowed to run the systems in manual mode.  

What is also apparent from Chernobyl is the industry did not speak out in a timely manner about what happened and the risk to other countries from the radioactive cloud that was headed their way.  It is true that the operators in the plant had more things on their mind right about then, if they were still alive after the explosion.   However, it was radiation detectors in other countries that first gave the alarm internationally.   The extent and magnitude of the event was not known for days.  The psychological impact on billions of people was not small.   What of the parents of small children, who needed to drink milk?  What worries did couples have about future children?  What worries did other people have about radiation sickness, or long-term illnesses such as thyroid cancer and other cancers?    

The next two articles in TANP discuss two more disasters involving core meltdowns: Three Mile Island and Fukushima.  In both instances, like at Chernobyl, a combination of bad design and human error caused major disaster.  Fukushima was a bit more complex because a natural disaster, and earthquake with tsunami initiated the events.  

-- end update

Conclusion

Nuclear power advocates insist that the plants are safe, that modern designs cannot have catastrophic meltdowns.  However, it is clear that human error can easily defeat the best designs, and natural events can overwhelm even the best operators.  Chernobyl operated quite safely until human plans and human errors created the enormous disaster that affected millions of people around the world. 

Previous articles in the Truth About Nuclear Power series are found at the following links.  Additional articles will be linked as they are published. 













Part Twenty - this article


Roger E. Sowell, Esq.
Marina del Rey, California



  

Sunday, June 8, 2014

The Truth About Nuclear Power – Part 19

Subtitle: Nuclear Radiation Injures People and Other Living Things

[ Update: 9/13/2015- NRC cancels health study (for cancer cases) around nuclear plants, including San Onofre (SONGS in Southern California), citing lack of funding.  See more in the discussion below. -- end update] 

The topic of radiation sickness and death from nuclear power plants is controversial, and causes heated argument from both sides of the nuclear power issue.  Over the decades, the nuclear proponents’ position has changed from “no one has ever been injured”, to “no
member of the public has ever been injured”, to “no member of the public has died”, to “nuclear power is safer than coal or natural gas.”   That is an interesting progression, as it implies that people HAVE been injured, and have died from nuclear plant radiation.  This article, number 19 in The Truth About Nuclear Power series, explores the injuries and deaths from nuclear plants radiation releases. [Updated 6/9/2014 for reduced cancers near Sacramento, California after nuclear plant shutdown -- Roger]

Previous articles on The Truth About Nuclear Power emphasized the economic and safety aspects by showing that (one) modern nuclear power plants are uneconomic to operate compared to natural gas and wind energy, (two) they produce preposterous pricing if they are the sole power source for a grid, (three) they cost far too much to construct, (four) use far more water for cooling, 4 times as much, than better alternatives, (five) nuclear fuel makes them difficult to shut down and requires very costly safeguards, (six) they are built to huge scale of 1,000 to 1,600 MWe or greater to attempt to reduce costs via economy of scale, (seven) an all-nuclear grid will lose customers to self-generation, (eight) smaller and modular nuclear plants have no benefits due to reverse economy of scale, (nine) large-scale plants have very long construction schedules even without lawsuits that delay construction, (ten) nuclear plants do not reach 50 or 60 years life because they require costly upgrades after 20 to 30 years that do not always perform as designed, (eleven) France has 85 percent of its electricity produced via nuclear power but it is subsidized, is still almost twice as expensive as prices in the US, and is only viable due to exporting power at night rather than throttling back the plants during low demand, (twelve) nuclear plants cannot provide cheap power on small islands, (thirteen) US nuclear plants are heavily subsidized but still cannot compete, (fourteen), projects are cancelled due to unfavorable economics, reactor vendors are desperate for sales, nuclear advocates tout low operating costs and ignore capital costs, nuclear utilities never ask for a rate decrease when building a new nuclear plant, and high nuclear costs are buried in a large customer base, (fifteen) safety regulations are routinely relaxed to allow the plants to continue operating without spending the funds to bring them into compliance, (sixteen) many, many near-misses occur each year in nuclear power, approximately one every 3 weeks, (seventeen) safety issues with short term, and long-term, storage of spent fuel, (eighteen)  safety hazards of spent fuel reprocessing, (nineteen) health effects on people and other living things, (twenty) nuclear disaster at Chernobyl, (twenty-one) nuclear meltdown at Three Mile Island, (twenty-two)  nuclear meltdowns at Fukushima, (twenty-three) near-disaster at San Onofre, (twenty-four) the looming disaster at St. Lucie, (twenty-five)  the inherently unsafe characteristics of nuclear power plants required government shielding from liability, or subsidy, for the costs of a nuclear accident via the Price-Anderson Act, and (twenty-six) the serious public impacts of large-scale population evacuation and relocation after a major incident, or "extraordinary nuclear occurrence" in the language used by the Price-Anderson Act.  Additional articles will include (twenty-seven) the future of nuclear fusion, (twenty-eight) future of thorium reactors, (twenty-nine) future of high-temperature gas nuclear reactors, and (thirty), a concluding chapter with a world-wide economic analysis of nuclear reactors and why countries build them.  Links to each article in TANP series are included at the end of this article. 

Introduction

This article explores two types of illness or death due to nuclear radiation.  First, acute radiation sickness, and second, long-term effects such as cancer from radiation exposure.

With acute radiation sickness the question is, how much radiation can a human tolerate, until illness or death occurs?   From the Mayo Clinic definition of radiation sickness: see link  
Radiation sickness is damage to your body caused by a large dose of radiation often received over a short period of time (acute). The amount of radiation absorbed by the body — the absorbed dose — determines how sick you'll be.
Radiation sickness is also called acute radiation sickness, acute radiation syndrome or radiation poisoning. Common exposures to low-dose radiation, such as X-ray or CT examinations, don't cause radiation sickness.
Although radiation sickness is serious and often fatal, it's rare. Since the atomic bombings of Hiroshima and Nagasaki, Japan, during World War II, most cases of radiation sickness have occurred after nuclear industrial accidents such as the 1986 fire that damaged the nuclear power plant at Chernobyl or the 2011 earthquake that damaged the [Fukushima] nuclear power plant on the east coast of Japan.”
Symptoms of radiation sickness include: nausea and vomiting, headache, diarrhea, fever, dizziness and disorientation, weakness and fatigue, hair loss, bloody vomit and stools, infections, poor wound healing, and low blood pressure. 
Radiation dosage is measured in G-ray, which is one joule of energy deposited in one kilogram of mass. The abbreviation is Gy.   An older measurement unit is the “rad” or abbreviation for “radiation absorbed dose.”  One Gy is equal to 100 rad.  
Nuclear medicine, dentistry x-rays, and medical x-rays are not included here.  Only radiation releases from nuclear power plants, nuclear fuel processing, and fuel research labs, but not from military power plant such as on submarines or surface ships are discussed in this article. 

Disasters and Deaths

From an article by Wada, K, et. al., in Occupational Environmental Medicine, Aug. 2012 69(8): 599-602, “In the Chernobyl disaster, 134 plant staff and emergency workers received high doses of radiation ranging from 0.8 to 16 Gy resulting in acute radiation syndrome, and 28 of them died within the first 4 months.  In contrast, no workers have exhibited illness due to acute radiation syndrome in the Fukushima Dai-ichi NPP accident. Almost 99% of the workers at Fukushima were exposed to a radiation dose of [less than] 100 mSv and the possibility of future adverse health effects is uncertain."  (reference is United Nations Scientific Committee on the Effects of Atomic Radiation Sources and Effects of Ionizing Radiation. 2008 see link note:  this article by Wada has excellent references for further reading)  (emphasis added)

A famous case in the US is that of Karen Silkwood, who died before her trial but was exposed to plutonium at her workplace, allegedly due to inadequate and illegal work practices.  Karen sued her employer, Kerr-McGee but died in a car accident. 

Long-term Chronic Effects – Cancers

One of the greatest fears, or concerns, of people is contracting cancer or having children with birth defects due to nuclear power plant radiation exposure.  A recent case on point is a lawsuit brought by nearly 80 US sailors against the Japanese government (dismissed for inability to sue a foreign government), and later amended to sue only the Japanese utility company, TEPCO, that owns the Fukushima nuclear plants that melted down in 2011.  The sailors worked on USS Ronald Reagan, an aircraft carrier involved in humanitarian efforts after the earthquake and tsunami.  The sailors allege that they now suffer from cancer, and at least one had a baby with birth defects. See link 

Additionally, investigations have been made over the years into “cancer clusters,” or areas where more cancers than average occur.  It is difficult to sort out the causes, or establishing but-for causation in the legal sense.  Cancer clusters tend to be near population centers, where multiple cancer-causing agents are known to exist.  Nuclear power plants are also near the population centers, but there are also chemical plants, smelters, and non-nuclear power plants, among others.   A 1991 study gives an excellent overview of cancer studies up to that time, from nuclear plants.   “National Cancer Institute (NCI) survey published in the Journal of the American Medical Association, March 20, 1991, showed no general increased risk of death from cancer for people living in 107 U.S. counties containing or closely adjacent to 62 nuclear facilities. The facilities in the survey had all begun operation before 1982. Included were 52 commercial nuclear power plants, nine Department of Energy research and weapons plants, and one commercial fuel reprocessing plant. The survey examined deaths from 16 types of cancer, including leukemia. In the counties with nuclear facilities, cancer death rates before and after the startup of the facilities were compared with cancer rates in 292 similar counties without nuclear facilities (control counties).” See link

However, the NCI 1991 survey admits several issues: they studied only deaths due to cancer.  They did not have data to conclude if proximity to a nuclear plant was a factor, saying “the counties may be too large to detect risks present only in limited areas around the plants.” 

Also, the NCI study references a British study on childhood leukemia incidence that showed increased leukemia cases in children that lived near nuclear power plants.  See  "Cancer Near Nuclear Installations," David Forman, Paula Cook-Mozaffari, Sarah Darby, et al. Nature, October 8, 1987.

A study by Jablon and Boice, Jr. from 1993 of nuclear plant workers at one plant stated: “A second follow-up of 9,000 workers at the Calvert Cliffs Nuclear Power Plant (MD, USA) identified 346 deaths in the years 1969-88, 101 of which were attributed to malignant neoplasms. The original study had the primary purpose of assessing the feasibility of studies of workers based upon individual plant and Nuclear Regulatory Commission records. The average, cumulative, occupational dose through 1984 was low, only 21 mSv, but ranged up to 470 mSv, with 12 percent of the workers receiving more than 50 mSv. Mortality from most causes of death was low and there was a deficit of deaths from diseases of the circulatory system. Ionizing radiation exposures were not related to the probability of death from neoplasms generally or from any specific form of cancer. There were only two deaths from leukemia, whereas four were expected at population death rates. Larger numbers of workers, followed for longer periods of time, are needed to determine the mortality risk to workers in the nuclear power industry. The difficulties in obtaining dose information for transient workers were so great, and so time consuming, as to make questionable the practicability of studying the workers at a large number of power plants in this way.  See link

UPDATE - 6/9/2014: Cancer rates near Sacramento, CA decreased significantly after the Rancho Seco nuclear plant was shut down.  "The first long-term study of the full-population health impacts of the closure of a U.S. nuclear reactor found 4,319 fewer cancers over 20 years, with declines in cancer incidence in 28 of 31 categories – 14 of them statistically significant – including notable drops in cancer for women, Hispanics and children.

Published in the peer-reviewed medical journal, Biomedicine International, the major new article, “Long-term Local Cancer Reductions Following Nuclear Plant Shutdown,” is the work of epidemiologist Joseph Mangano, M.P.H. M.B.A., executive director of the Radiation and Public Health Project, and internist and toxicologist Janette Sherman, M.D." -- see link   

Approximately 18 million Americans live within 20 miles of a nuclear power plant (5 percent of total population), while 116 million live within 50 miles (almost one-third of total population)   -- end update] 

[Update- 6/14/2014: Thyroid cancer cases increased in children near Fukushima.  

"Medics from Fukushima Medical University tested children's thyroid glands because they are very sensitive to such chemicals as iodine. Thyroid cancer among children is very rare, but 72 children with suspected thyroid cancer have already been identified and this number is expected to grow in the coming years. . . "   -  Voice of Russia see link   -- end update]
Read more: http://voiceofrussia.com/radio_broadcast/no_program/273403296/



Conclusion

The effects of ionizing nuclear radiation from nuclear power plants are real and deadly.  It can be seen, now, why the industry had to change its tune from “no one has ever been injured,” because in fact hundreds of people died after the Chernobyl explosion.  Nuclear proponents argue quite vigorously that “Chernobyl can never happen again,” and that argument will be explored in a future article on TANP.  It is obviously wrong, as a meltdown at Fukushima occurred just a few years later.   Fukushima also exposed hundreds of workers to nuclear radiation, and it is not yet known how many of them will ultimately die from radiation exposure, i.e. cancer.   Given the unsafe operating practices in US nuclear power plants, the near meltdowns or near-misses that occur at alarming frequency (one every 3 weeks, on average), it can be seen that concerns over cancers, birth defects, and radiation sickness are justified.  No matter how the industry spins the facts, the evidence is clear.  Nuclear power is not only too costly, but it is unsafe.  It causes deaths and fear of agonizing, lingering death from cancers. 

It is a shame that in this modern era with internet and database capabilities, a comprehensive study cannot be conducted to determine how many people of all ages contract radiation-related illnesses such as leukemia, thyroid disease, and other cancers.   It is a certainty that the nuclear industry does not want that information discovered and published.    

[UPDATE 9/13/2015 - the NRC has cancelled a study that would have determined, then published, the statistics on greater-than-normal incidences of diseases among persons, especially children, living within close distances of nuclear power plants.   The technology and data is available for the study, but NRC chose not to allocate funding to the study.  Predictably, nuclear advocates cheered, and nuclear opponents are disappointed.  see link to the article.   

An earlier (1991) study of health effects near nuclear plants was fatally flawed by design, and its results are not surprising.   

Quoting the article: "Among the study’s many problems, according to scientists who were designing the new probe:

•"It tracked mortality rates based on where people died, rather than where they lived before getting cancer. That makes it hard to determine true lifetime exposure.

• "It tracked deaths, rather than total cancer cases. That may downplay the full health impact of living near a reactor, since many cancer patients survive.

• "It used countywide data to reach conclusions – a blunt instrument that may again downplay the impact on those living closest to a reactor. Residents in La Habra and San Clemente live in the same county – but few would argue that they had the same exposure to San Onofre.


"To remedy all that, the NRC asked the NAS to evaluate cancer diagnosis rates, not just cancer deaths; and to explore how to divide the areas around nuclear facilities into geographical units smaller than counties. The NAS made no bones about the effort being difficult and time-consuming, but said it could be done."   

This is certainly an area where citizen volunteers - qualified and motivated - should step forward to perform this study pro-bono.   Also, it is a shame that the US government cannot find the $8 million to perform the initial study of 7 reactors.   In an era where government spending, and borrowing, is full of studies for irrelevant issues, this one is certainly deserving of funding. --- end update 9/13/2015]

Previous articles in the Truth About Nuclear Power series are found at the following links.  Additional articles will be linked as they are published. 














Roger E. Sowell, Esq.

Marina del Rey, California


Monday, March 14, 2011

Reconsider Nuclear Power - Is It Ever Safe?


Below is the text of a post I made on nuclear power, from July 2009, titled "Nuclear Nuts." It seems appropriate to bring this to the fore, since the Japanese nuclear reactors have begun having serious problems. The pro-nuclear crowd is, for the most part, congratulating themselves over how well the Japanese nuclear reactors have held up, with only a few (six or eight or so) having any problems. Plus, they point out, it was not the March 11th earthquake that caused the problem but the giant tsunami that followed it.
I'm an engineer. I know what engineers can do, and I know their limitations. I'm also an attorney, with a law practice that deals with engineers and the myriad of issues that arise in engineering. I'll expand this post over the next few days as my time permits, but for now, the following observations.
First, no plant has ever been designed to withstand what natural forces can dish out. The earthquake in Japan was a 9.0, yet we have evidence of larger earthquakes occurring. The tsunami was 10 meters (30 feet, more or less), yet we have evidence of much, much larger tsunamis in the past. As but one example, there is a tsunami that will smash the entire US West coast from Hawaii, when a portion of the big island collapses into the sea. It is not a matter of IF, but a matter of WHEN. The tsunami will be hundreds of feet high. There are at least six nuclear power plants along the west coast, with four reactors right on the beach in California at San Onofre, and at Diablo Canyon. What Japan is dealing with now, California will be dealing with then.
Second, even the Japanese designs were not sufficient for the earthquake and tsunami that followed. The large initial quake was followed by many smaller aftershocks. It is also apparent that insufficient fuel was available for the Japanese reactors' emergency diesel generators, so even if they had generators that still worked, they would have been out of fuel.
Third, concrete containment structures may or may not maintain their integrity after a large earthquake and multiple aftershocks. It appears that the world is about to learn if the Japanese concrete containment has leaks or not, following the reactor core meltdowns.
Fourth, evacuating people in Japan involved a few hundred thousand people. For the San Onofre plant, which is near San Diego and suburbs of Los Angeles, there are likely millions of people who must be evacuated. That is a logistical problem of immense proportions.
Below, "Nuclear Nuts" addresses the question of nuclear plant safety. I did not include the safety and radiation release aspects of an earthquake plus a tsunami when I wrote that in 2009. Clearly, they are not safe when subjected to such stresses.
Another aspect of nuclear power plant safety must be mentioned. The plants are getting old, and things deteriorate, break, malfunction, and wear out with age. The Japanese are finding that old plants, (40 years old is one reactor with a melt-down), just don't work after an earthquake. The reactors in the USA are also from the 1970's and a few in the 1980s, so are also in the 40 year age bracket. Some are receiving extended operating licences for their third twenty-year period, meaning they will operate to age 60. This is a recipe for disaster.
Yet another aspect of a serious malfunction is a total loss of grid power, then the loss of cooling water, and having spent nuclear fuel stored on-site. The spent fuel also produces heat that must be removed by pumping water through a pool where the fuel is stored. When that water no longer circulates, the spent fuel also overheats.
-- Roger E. Sowell, Esq.
March 14, 2011 at 11:31 p.m. PDT
Marina del Rey, California
Nuclear Nuts, reproduced here and found on SLB here.
A few weeks ago [in June, 2009]I crossed the internet path of one internet nuclear advocate [the "gentleman" hereafter], a self-proclaimed “knowledgeable nuke” and one who fervently believes that nuclear energy is “safe, reliable, and affordable, a huge boon to mankind.” He is an advocate for very small nuclear power plants, with thousands to be built and located in city neighborhoods and industrial facilities.
Further, this gentleman states that nuclear power via atomic fission does not release any deadly materials in an uncontrolled fashion into the environment, unlike burning fossil fuels. [note: this is false, just ask the Japanese]
And last, the gentleman states that I am dead wrong when I stated that atomic energy is the most dangerous and toxic form of energy man has ever devised.
I have run across his type before: a true zealot, a true believer, and one who is not to be swayed by the force of any evidence supported by facts, as his mind is closed to any new or contrary information.
So, knowing in advance that this is a hopeless endeavor, that is, persuading the gentleman and others of similar ilk of the error of his beliefs, I press on, but only this one time. I have far too many things to accomplish in this life to waste more time arguing with one who will not listen to compelling arguments. Taking his assertions in order, “1) safe, 2) reliable, 3) affordable, and 4) a huge boon to mankind.”
Is nuclear power safe? As an attorney highly familiar with negligence and liability, both strict and otherwise, nothing is perfectly safe at all times. Safety is a matter of degree. Measuring sticks one can use to determine the level of safety include how many safeguards are required, how many injuries or deaths occur, and how the law views the matter. For example, driving a car may be considered safe. Yet a car (at least in the U.S.), must have quite a number of safety features before it is allowed to operate on the roads. These safety features include side impact doors, crash-absorbing bumpers, frame crumple zones, air-bags, seat belts, padded headrests and dashboards, the list goes on and on. In addition, there are laws for operating motor vehicles that are designed to increase safety, such as no talking on cell phones and no texting while driving, stopping required at red lights and stop signs, speed limits, operating the headlights at night, not driving while impaired by drugs or alcohol, and others. Yet thousands of people are killed or injured each month while driving. Even though driving a car kills people, driving is not considered an ultra-hazardous activity under the law.
An ultra-hazardous activity is defined under the law as “an activity that necessarily involves a risk of serious harm to the person, land or chattels of others which cannot be eliminated by the exercise of the utmost care, and is not a matter of common usage. Examples of ultra-hazardous activities include blasting, other uses of explosives, radioactive materials, and certain chemicals.
Nuclear power from fission uses radioactive elements, and is by definition an ultra-hazardous activity. The legal consequence of this is that no matter what happens, and no matter the contributory negligence of the plaintiff, the owner of the ultra-hazardous material is at fault when the plaintiff is harmed by the ultra-hazardous material or activity.
Next, safety can be measured by the amount of harmful material released into the environment, and the harm resulting from that material. Nuclear power plants have exploded (Chernobyl), have leaked radioactive water into the ground and streams (numerous times), and have sunk to the bottom of the sea in submarines, thereby poisoning the surrounding seas. The preparation of nuclear fuel leaves in its wake devastating damage to the environment, as for example the uranium mines in the U.S. Southwest. The Kerr-McGee plant that processed plutonium is another example of nuclear radioactive material that poisoned people, as the Karen Silkwood lawsuit clearly showed.
From the above, it can be seen that nuclear power is anything but safe. The industry makes claims to a safety record, but in reality the record is not yet written. Many thousands of tons of deadly radioactive waste material, as spent fuel rods, are stored in the more than 100 operating nuclear power plants in the U.S. These deadly radioactive wastes will likely be processed in one form or another someday, and the accidents, radiation burns, early deaths, radiation sicknesses, and long-term health consequences such as cancers from radiation have not yet occurred. But they will.
The removal from service and disassembly of many of the oldest nuclear power plants have also not occurred, with the attendant disposal of the radioactive portions of those plants. How many more radiation-related illnesses and premature deaths will occur at that time?
Further, nuclear fission that occurs in power plants produces the raw material for nuclear bombs: plutonium. No amount of denial by pro-nuclear forces can alter that fundamental physical fact. Also, the other, non-plutonium portion of spent nuclear fuel can be used to deadly effect in a dirty bomb, in which conventional explosives are wrapped in nuclear fuel and exploded. The resulting spread of toxic radioactivity is deadly to lifeforms. For those who deny that nuclear power plants produce bomb material, why is there so much angst in the world over some nations acquiring nuclear power plants, such as North Korea and Iran?

Point two, is nuclear power reliable? One must put the question in context, reliable in relation to what? If the comparison is to intermittent renewable energy sources such as wind, or solar, nuclear power is a bit more reliable. But compared to coal-fired plants, nuclear is no more reliable.Compared to gas-fired plants, it is no more reliable. And, compared to load-following gas-fired plants, it is less reliable. No utility can place a phone call to the nuclear plant on its grid during a peak power situation and ask the operators to crank it up another 20 percent for the next few hours, but a gas-fired plant can easily do that. No nuclear plant can be brought from a cold condition to full generating power within an hour, as can a gas-fired peaker power plant. The nuclear plant is designed to run at a steady output, and no other. Furthermore, the Nuclear Regulatory Commission can, and does, order nuclear power plants to cut back production or shut down entirely for various reasons. This certainly adversely affects the reliability.
Third, is nuclear power affordable? Many experts thought so in the 1970’s, but few would agree today. In fact, with a 2008 / 2009 cost estimate of $17 to 20 billion for a 2200 MW twin-reactor plant, nuclear power is one of the most expensive options around. That cost estimate was made before the NRC issued a new ruling, that every new nuclear power plant in the U.S. must be designed and built to withstand the impact of a large commercial aircraft. That alone will increase the construction cost by another 10 percent or more. As Craig Severance, CPA, has written, to justify the enormous initial cost and long construction time, the sales price of nuclear-generated power from a new plant must be 25 to 30 cents per kwh. By my estimates, when the aircraft impact design features are included, that will likely be 30 to 35 cents per kwh. In stark contrast, power from a new gas-fired plant is around 12 cents, and from a new coal-fired plant 9 to 10 cents.
Also under the subject of affordability, the gentleman claims that U.S. states with the highest nuclear power generation have the lowest costs of electricity. He cites the southeastern states for this proposition. The opposite turns out to be the case. In all modesty, I took a look at published, reputable data from the U.S. Energy Information Agency, EIA. From my engineering days, I have simple yet adequate skills in plotting data points on a graph, and determining the coordinates of the best-fit linear trend line through those points (see Figure 1 below). In all fairness, developing a trend-line is rather easy these days, when one uses a commercial spreadsheet such as Microsoft’s Excel™.The trend-line shows a positive slope, indicating that power price increases as the percentage of nuclear power generation increases in a state. The data showed that 31 U.S. states have nuclear power plants, with the lowest percent of total generation in Ohio at 6 percent, and the highest in Vermont at 70 percent. Interestingly, the average price for residential retail power in Ohio was 9.5 cents, and in Vermont was 48 percent higher, at 14.1 cents per kwh, in 2007. Connecticut was the highest of all, at 19.1 cents per kwh. The slope of the trend line shows a 0.75 percent increase in power price for a 1 percent increase in nuclear power generation in the state. For a 15 percent increase in nuclear power, the average power price will increase a bit more than 0.9 cents per kwh, or roughly 10 percent of the 2007 price nationwide. For those who advocate increasing nuclear power up to the level achieved by France, 80 percent, this chart clearly shows that would increase the average power price in the USA by 40 percent.
Yet, this data for 2007 uses power produced from mostly aged, nearly-paid-for nuclear power plants.New nuclear plants would, as shown above, require much higher power prices and would increase the cost of power to customers by much more.


Figure 1.
Power price increases 0.63 cents per kwh
for each 10 percent increase in nuclear power

This brings me to the gross unfairness of nuclear power on electricity prices. The poor and those on fixed incomes suffer the most from high power prices, as they have few options but to pay the price or do without. This is dangerous to health and safety in extreme heat and extreme cold.
Fourth and finally, is nuclear power a huge boon to mankind? Given the above, that nuclear power is by definition ultra-hazardous, produces vast quantities of toxic, radioactive wastes that can be used to manufacture nuclear bombs and dirty bombs, is not reliable due to mandatory power reductions or shutdowns, and is one of the most expensive forms of power on the planet that causes grossly disparate effects on the poor and those on fixed incomes (the elderly), the answer must be an emphatic and resounding NO.
The only thing positive about a nuclear power plant is the fuel is cheap. But, there are energy sources that are cheaper still. Four of those energy sources are solar, wind, wave, and ocean current.A fifth is geothermal, but it is very limited. Yet a sixth is hydroelectric, but there is virtually no possibility of increase. The natural resources of those first four power sources are enormous, and have scarcely been tapped to date. Each has features to recommend it, and each has certain drawbacks. But the drawbacks to not include the use of ultra-hazardous materials, do not include generation of deadly toxic wastes that endure for decades or centuries, and do not include power sales prices at 35 cents per kwh or more. Even the reliability issue is minor and getting smaller with new developments. Innovative and cost-effective storage systems are under development and testing in the national laboratories for wind, wave, and solar, which will forever make moot the reliability issue. Ocean current will not require energy storage systems, as the ocean currents flow no matter what is happening in the environment around them.
In conclusion, the propositions that nuclear energy is safe, reliable, affordable, a huge boon to mankind, and releases no toxics to the environment are clearly wrong. The facts clearly show this. No amount of dreaming or wishing or hoping by the gentleman or anyone else with similar opinions will change that.
UPDATE 1 (Nov 4, 2009): After several months and many comments, it is instructive to compare my assertions and facts to the beliefs stated by some of the commenters. First, much more natural gas has been found, just as I said. So much so that gas storage in the U.S. is completely full, and gas prices are very low. So much so that wind power projects are at a reduced rate because wind power generally replaces gas-fired power. Europe is drilling for and finding gas in their shale deposits, especially in Poland. New LNG import terminals are being delayed due to the vast amount of natural gas now available in the US. No need to import it if we can open a valve on land.
On the nuclear power plant front, South Texas Nuclear Project's proposed expansion is on the ropes - due to cost. This is just as I predicted. The cost estimate was $13 billion, and just recently was increased to $17 billion. The City of San Antonio is rethinking their involvement, and postponing their decision. How could such a thing happen, since nuclear proponents insist (indeed, shout it out loud) that such plants are proven technology with well-known cost estimates?
A second major event rocked the new nuclear power plant world this week, as the Areva company (the French vendor for the Finnish plant under construction) has just received a slap across the face for inadequate safety systems. The design must be revised to satisfy the nuclear regulatory agencies from France, Finland, and U.K. How could that be, since we are equally assured by the nuclear proponents that such plants' designs are safe? One would think that the design as approved was truly safe. Apparently not.
And a further point on the cost increase to withstand an impact from a large commercial aircraft. Some commenters stated that all 103 of the US plants already meet that safety standard. This is not true. The new safety standard applies to more than just the reactor dome, it also applies to the cooling system, and spent fuel storage.
It is also increasingly apparent, after a very cool summer and early killing frost, increasing polar ice at both poles, and almost zero hurricanes in the Atlantic, that CO2 has nothing to do with the earth's temperature. If the IPCC and AGW alarmists were correct, the increased CO2 (from 350 all the way up to 388 ppm) should have roasted the earth already. We should already have islands underwater (where are they?), seaports and seashores disappearing (where are they?), an early Spring and late Fall (not in the northern hemisphere, nor the southern), many more hurricanes (did not happen), and Arctic ice almost gone (it is increasing back to the 2005 level). [end update 1]