Three Mile Island burst into the nation's headlines twenty-five years ago, forever changing our view of nuclear power. The dramatic accident held the world's attention for an unsettling week in March 1979 as engineers struggled to understand what had happened and brought the damaged reactor to a safe condition. Much has been written since then about TMI, but it is not easy to find up-to-date information that is both reliable and accessible to the nonscientific reader. TMI 25 Years Later offers a much-needed "one-stop" resource for a new generation of citizens, students, and policy makers.

The legacy of Three Mile Island has been far reaching. The worst nuclear accident in U.S. history marked a turning point in our policies, our perceptions, and our national identity. Those involved in the nuclear industry today study the scenario carefully and review the decontamination and recovery process. Risk management and the ability to convey risks to the general population rationally and understandably are an integral part of implementing new technologies. Political, environmental, and energy decisions have been made with TMI as a factor, and while studies reveal little environmental damage from the accident, long-term studies of health effects continue.

TMI 25 Years Later presents a balanced and factual account of the accident, the cleanup effort, and the many facets of its legacy. The authors bring extensive research and writing The authors bring extensive research and writing experience to this book. After the accident and the cleanup, a significant collection of videotapes, photographs, and reports was donated to the University Libraries at Penn State University. Bonnie Osif and Thomas Conkling are engineering librarians at Penn State who maintain a database of these materials, which they have made available to the general public through an award-winning website. Anthony Baratta is a nuclear engineer who worked with the decontamination and recovery project at TMI and is an expert in nuclear accidents. The book features unique photographs of the cleanup and helpful appendixes that enable readers to investigate further various aspects of the story.

The disposal of nuclear waste is becoming a major concern. Many nuclear power plants around the world are nearing the end of their operating lives. This is particularly true in the United States where most nuclear power plants are approaching the end of the operational time period allowed in their licenses. The disposal of radioactive waste from nuclear power plants and nuclear missiles is as politically intense an issue as the plants and missiles themselves. Yet the three issues have remained curiously separate in spite of their close physical ties. Few debates on nuclear power or nuclear weapons discuss the problems of waste disposal should the power plant or missile be decommissioned. Few debates on nuclear waste disposal discuss the opportunities to close nuclear power plants or get rid of nuclear weapons a disposal site would afford. Nuclear waste can be generally classified a either "low level" radioactive waste or "high level" radioactive waste. Low level nuclear waste usually includes material used to handle the highly radioactive parts of nuclear reactors (i.e. cooling water pipes and radiation suits) and waste from medical procedures involving radioactive treatments or x-rays. Low level waste is comparatively easy to dispose of. The level of radioactivity and the half life of the radioactive isotopes in low level waste is relatively small. Storing the waste for a period of 10 to 50 years will allow most of the radioactive isotopes in low level waste to decay, at which point the waste can be disposed of as normal refuse. High level radioactive waste is generally material from the core of the nuclear reactor or nuclear weapon. This waste includes uranium, plutonium, and other highly radioactive elements made during fission. Most of the radioactive isotopes in high level waste emit large amounts of radiation and have extremely long half-lives (some longer than 100,000 years) creating long time periods before the waste will settle to safe levels of radioactivity. This new book explores the issues pertaining, either directly or indirectly, to nuclear waste disposal.

More than a quarter-century has now passed since the United States set off the last of three underground atomic blasts in the remote wilderness of the Aleutian islands, off the coast of Alaska. Cannikin, as this third test was called, exploded as planned on November 6, 1971, on Amchitka Island. The first test, Project Long Shot (1965), was designed to determine whether the blast's shock waves could be distinguished from earthquakes. Milrow, the second (1969), and Cannikin were part of the U.S. anti-ballistic missile development program. Amchitka and the Bomb looks at how these nuclear explosions were planned and conducted by the U.S. Department of Defense and the Atomic Energy Commission, in spite of vehement protests by political and civilian groups. In addition to demonstrating the feasibility of a new generation of weapons, the government defended the nuclear tests on Amchitka as providing U.S. presidents, and especially Richard Nixon, with negotiating power to force the Soviet Union to accept a satisfactory arms limitation agreement. Dean Kohlhoff traces the enormous environmental impact of the blasts on the Aleutian wildlife refuge system. He also examines the social and political fallout from the tests on Aleut civilian populations. As the tests inexorably went forward, an emerging environmental movement was galvanized to action. Passionate but ultimately futile attempts to stop the blasts were made by such nascent groups as Greenpeace, Friends of the Earth, and the Wilderness Society. Although Alaskan Aleuts sued to halt Cannikin and environmental groups joined them for an injunction against the test, a split U.S. Supreme Court eventually approved the 5.1-megaton explosion. Amchitka and the Bomb tells a harrowing story of the struggle of private citizens and small environmental groups to counter the weight of the federal government. It adds immeasurably to our understanding of the nuclear history of the United States. Its concise interweaving of the military, scientific, economic, and social implications surrounding the nuclear explosions on Amchitka Island exposes the unpleasant consequences of allowing treasured national values to become victim to political necessity. Kohlhoff has contributed a vital chapter to Alaska's history and to the history of the American environmental movement.

An updated edition of a guide to the basic science of climate change, and a call to action. The vast majority of scientists agree that human activity has significantly increased greenhouse gases in the atmosphere-most dramatically since the 1970s. Yet global warming skeptics and ill-informed elected officials continue to dismiss this broad scientific consensus. In this updated edition of his authoritative book, MIT atmospheric scientist Kerry Emanuel outlines the basic science of global warming and how the current consensus has emerged. Although it is impossible to predict exactly when the most dramatic effects of global warming will be felt, he argues, we can be confident that we face real dangers. Emanuel warns that global warming will contribute to an increase in the intensity and power of hurricanes and flooding and more rapidly advancing deserts. But just as our actions have created the looming crisis, so too might they avert it. Emanuel calls for urgent action to reduce greenhouse gases and criticizes the media for downplaying the dangers of global warming (and, in search of "balance," quoting extremists who deny its existence). This edition has been updated to include the latest climate data, a discussion of the earth's carbon cycle, the warming hiatus of the first decade of this century, the 2017 hurricanes, advanced energy options, the withdrawal from the Paris climate agreement, and more. It offers a new foreword by former U.S. Representative Bob Inglis (R-SC), who now works on climate action through his organization RepublicEN.

"Is it safe?" "What are the risks involved?" are questions frequently asked by members of the public. This unique book explains the fundamental problems faced in modern-day life. Terms such as "risk" and "safe" are clearly defined, and the risks encountered between birth and death are discussed, including transport, the home, healthcare, diet, and the workplace. The perception of risk, and the risks from radiation (natural, radwaste and nuclear reactors) are covered, along with management of risk and the psychology of risk perception. What is Safe? The Risks of Living in a Nuclear Age is illustrated with examples from the most deeply researched areas. Written for the lay-person, the volume also includes a complete reprint of the late Lord Walter Marshall's famous lecture "The Radioactive Garden." It will be of interest to students, teachers, researchers, industrialists or indeed anyone wishing for an up-to-date view of risk and safety.

First published in 1978, Helen Caldicott's cri du coeur about the dangers of nuclear power became an instant classic. In the intervening sixteen years much has changed - the Cold War is over, nuclear arms production has decreased, and there has been a marked growth in environmental awareness. But the nuclear genie has not been forced back into the bottle. The disaster at Chernobyl and the "incidents" at other plants around the world have disproven the image of "safe" nuclear power. Nuclear waste dumping has further poisoned our environment, and developing nuclear technology in the Third World poses still further risks. In this completely revised, updated, and expanded edition, Dr. Caldicott defines for the 1990s the dangers of this madness - including the insidious influence of the nuclear power industry and the American government's complicity in medical "experiments" using nuclear material - and calls on us to accept the moral challenge to fight against it, both for our own sake and for that of future generations.

Shrader-Frechette looks at current U.S. government policy regarding the nation's high-level radioactive waste both scientifically and ethically.
What should be done with our nation's high-level radioactive waste, which will remain hazardous for thousands of years? This is one of the most pressing problems faced by the nuclear power industry, and current U.S. government policy is to bury "radwastes" in specially designed deep repositories.
K. S. Shrader-Frechette argues that this policy is profoundly misguided on both scientific and ethical grounds. Scientifically--because we cannot trust the precision of 10,000-year predictions that promise containment of the waste. Ethically--because geological disposal ignores the rights of present and future generations to equal treatment, due process, and free informed consent.
Shrader-Frechette focuses her argument on the world's first proposed high-level radioactive waste facility at Yucca Mountain, Nevada. Analyzing a mass of technical literature, she demonstrates the weaknesses in the professional risk-assessors' arguments that claim the site is sufficiently safe for such a plan. We should postpone the question of geological disposal for at least a century and use monitored, retrievable, above-ground storage of the waste until then. Her message regarding radwaste is clear: what you "can't" see "can" hurt you.

In the past two decades young people, environmentalists, church activists, leftists, and others have mobilized against nuclear energy. Anti-nuclear protest has been especially widespread and vocal in Western Europe and the United States. In this lucid, richly documented book, Christian Joppke compares the rise and fall of these protest movements in Germany and the United States, illuminating the relationship between national political structures and collective action. He analyzes existing approaches to the study of social movements and suggests an insightful new paradigm for research in this area. Joppke proposes a political process perspective that focuses on the interrelationship between the state and social movements, a model that takes into account a variety of forces, including differential state structures, political cultures, movement organizations, and temporal and contextual factors.
This is an invaluable work for anyone studying the dynamics of social movements around the world.

Swedish journalist and author Braw draws on declassified documents and interviews in Japan and the US to reveal how the US occupation authorities established elaborate systems of censorship and disinformation among the Japanese press, scientists, and even novelists and poets, about the bombing of Hi

This book constitutes the Proceedings of a meeting held in Pugwash, Nova Scotia, 18-20 July 1989, which was the eighteenth in a series of Workshops on Nuclear Forces held in the framework of the Pugwash Conferences on Science and World Affairs. This particular series of Workshops was initiated in January 1980, that is, immediately after the NATO "double-track" decision of December 1979 that in the short run led to the deployment in Europe of new US nuclear-armed missiles ground launched cruise missiles and medium-range ballistic missiles (Pershing II) but that was also instrumental in setting into motion the process that led to the total elimination of all US and Soviet ground-based missiles having ranges from 500 to 5500km."

How the US Environmental Protection Agency designed the governance of risk and forged its legitimacy over the course of four decades. The US Environmental Protection Agency was established in 1970 to protect the public health and environment, administering and enforcing a range of statutes and programs. Over four decades, the EPA has been a risk bureaucracy, formalizing many of the methods of the scientific governance of risk, from quantitative risk assessment to risk ranking. Demortain traces the creation of these methods for the governance of risk, the controversies to which they responded, and the controversies that they aroused in turn. He discusses the professional networks in which they were conceived; how they were used; and how they served to legitimize the EPA. Demortain argues that the EPA is structurally embedded in controversy, resulting in constant reevaluation of its credibility and fueling the evolution of the knowledge and technologies it uses to produce decisions and to create a legitimate image of how and why it acts on the environment. He describes the emergence and institutionalization of the risk assessment-risk management framework codified in the National Research Council's Red Book, and its subsequent unraveling as the agency's mission evolved toward environmental justice, ecological restoration, and sustainability, and as controversies over determining risk gained vigor in the 1990s. Through its rise and fall at the EPA, risk decision-making enshrines the science of a bureaucracy that learns how to make credible decisions and to reform itself, amid constant conflicts about the environment, risk, and its own legitimacy.

This part gives metabolic data for 30 further elements, including Annual Limits on Intakes (ALI's) for their isotopes. The data given in this report are intended to be used together with the text and dosimetric models described in ICRP Publication 30, Part 1.

In this study of the nuclear theme in Japanese intellectual and artistic life, John Whittier Treat argues that we have much to learn from Japanese writers and artists about the substance and meaning of the nuclear age. Treat recounts the controversial history of Japanese public discourse around Hiroshima and Nagasaki - a discourse alternatively celebrated and censored - from August 6, 1945, to the present day. He includes works from the earliest survivor writers, including Hara Tamiki and Ota Yoko, to such important modern Japanese intellectuals as Oe Kenzaburo and Oda Makoto. Treat argues that the insights of Japanese writers into the lessons of modern atrocity share much in common with those of Holocaust writers in Europe and the practitioners of recent post-structuralist nuclear criticism in America. In chapters that take up writers as diverse as Hiroshima poets, Tokyo critics and Nagasaki women novelists, he explores the implications of these works for critical, literary and cultural theory. Treat summarizes the Japanese contribution to such ongoing international debates as the crisis of modern ethics, the relationship of experience to memory and the possibility of writing history. This Japanese perspective, Treat shows, both confirms and amends many of the assertions made in the West on the shift that the death camps and nuclear weapons have jointly signalled for the modern world and for the future.

How Los Angeles, Hong Kong, and China deal with such urban environmental issues as ports, goods movement, air pollution, water quality, transportation, and public space. Over the past four decades, Los Angeles, Hong Kong, and key urban regions of China have emerged as global cities-in financial, political, cultural, environmental, and demographic terms. In this book, Robert Gottlieb and Simon Ng trace the global emergence of these urban areas and compare their responses to a set of six urban environmental issues. These cities have different patterns of development: Los Angeles has been the quintessential horizontal city, the capital of sprawl; Hong Kong is dense and vertical; China's new megacities in the Pearl River Delta, created by an explosion in industrial development and a vast migration from rural to urban areas, combine the vertical and the horizontal. All three have experienced major environmental changes in a relatively short period of time. Gottlieb and Ng document how each has dealt with challenges posed by ports and the movement of goods, air pollution (Los Angeles, Hong Kong, and urban China are all notorious for their hazardous air quality), water supply (all three places are dependent on massive transfers of water) and water quality, the food system (from seed to table), transportation, and public and private space. Finally they discuss the possibility of change brought about by policy initiatives and social movements.

An investigation into our complicated 7-decade-long relationship with nuclear technology, from the bomb to nuclear accidents to nuclear waste.

From Hiroshima to Chernobyl, Fukushima to the growing legacy of lethal radioactive waste, humanity's struggle to conquer atomic energy is rife with secrecy, deceit, human error, blatant disregard for life, short-sighted politics, and fear. Fallout is an eye-opening odyssey through the first eight decades of this struggle and the radioactive landscapes it has left behind. We are, he finds, forever torn between technological hubris and all-too-human terror about what we have created.

At first, Pearce reminds us, America loved the bomb. Las Vegas, only seventy miles from the Nevada site of some hundred atmospheric tests, crowned four Miss Atomic Bombs in 1950s. Later, communities downwind of these tests suffered high cancer rates. The fate of a group of Japanese fishermen, who suffered high radiation doses from the first hydrogen bomb test in Bikini atoll, was worse. The United States Atomic Energy Commission accused them of being Red spies and ignored requests from the doctors desperately trying to treat them.

Pearce moves on to explore the closed cities of the Soviet Union, where plutonium was refined and nuclear bombs tested throughout the '50s and '60s, and where the full extent of environmental and human damage is only now coming to light. Exploring the radioactive badlands created by nuclear accidents--not only the well-known examples of Chernobyl and Fukushima, but also the little known area around Satlykovo in the Russian Ural Mountains and the Windscale fire in the UK--Pearce describes the compulsive secrecy, deviousness, and lack of accountability that have persisted even as the technology has morphed from military to civilian uses.

Finally, Pearce turns to the toxic legacies of nuclear technology: the emerging dilemmas over handling its waste and decommissioning of the great radioactive structures of the nuclear age, and the fearful doublethink over the world's growing stockpiles of plutonium, the most lethal and ubiquitous product of nuclear technologies.

For any reader who craves a clear-headed examination of the tangled relationship between a powerful technology and human politics, foibles, fears, and arrogance, Fallout is the definitive look at humanity's nuclear adventure.

Radioactive sources such as nuclear power installations can pose a great threat to both humans and our environment. How do we measure, model and regulate such threats? Environmental Radioactivity and Emergency Preparedness addresses these topical questions and aims to plug the gap in the lack of comprehensive literature in this field. The book explores how to deal with the threats posed by different radiological sources, including those that are lost or hidden, and the issues posed by the use of such sources. It presents measurement methods and approaches to model and quantify the extent of threat, and also presents strategies for emergency preparedness, such as strategies for first-responders and radiological triage in case an accident should happen. Containing the latest recommendations and procedures from bodies such as the IAEA, this book is an essential reference for both students and academicians studying radiation safety, as well as for radiation protection experts in public bodies or in the industry.

In this publication, the International Commission on Radiological Protection (ICRP) provides updated guidance on radiological protection from cosmic radiation in aviation, taking into account the current ICRP system of radiological protection, the latest available data on exposures in aviation, and experience gained worldwide in the management of exposures in aviation. The publication describes the origins of cosmic radiation, how it exposes passengers and aircraft crew, the basic radiological protection principles that apply to this existing exposure situation, and the available protective actions. For implementation of the optimisation principle, the Commission recommends a graded approach proportionate to the level of exposure that may be received by individuals. The objective is to keep the exposure of the most exposed individuals to a reasonable level. The Commission also recommends that information be disseminated to raise awareness about cosmic radiation, and to support informed decisions among concerned stakeholders.

This book discusses the specifics of safety regulations regarding nuclear risk and how experts contribute to the safety of nuclear installations. Drawing on research conducted in collaboration with the French Institute for Radiological Protection and Nuclear Safety (IRSN), the ideas that are put forward rely on a review of the practices of specialists in human and organizational factors concerning nuclear safety. The author shows that the French approach depends on maintaining a technical dialogue between the regulatory authority (ASN), IRSN and nuclear operators. This method of risk management is known as "French cooking" in the Anglo-Saxon world, where a more formal regulatory approach is taken. This technical dialogue does however hold certain benefits, particularly in the field of human and organizational factors, where it allows an advancement of the state of knowledge, which remains incomplete. After the Fukushima accident, in the face of an ongoing European and global re-evaluation of the safety of nuclear power and alignment towards the Anglo-Saxon standard, the French cooking approach may yet be able to make a significant contribution. This work will be of interest to all involved in nuclear power engineering and in the field of risk management and nuclear safety. Includes a preface by Jacques Repussard, Director General, IRSN, France, and a postface by Erik Hollnagel, Professor, Institute of Regional Health Research, University of Southern Denmark / Chief Consultant, Centre for Quality, Region of Southern Denmark.

As radiological residue, both naturally occurring and technologically driven, works its way through the ecosystem, we see its negative effects on the human population. Radionuclide Concentrations in Food and the Environment addresses the key issues concerning the relationship between natural and manmade sources of environmental radioactivity, their transportation through the ecosystem, and the subsequent radionuclide concentrations in foods and the human population. The book discusses the negative effects of environmental radioactivity on plants and animals, as well as the effects of radiocontaminated food on human health, and perspectives for transfer prevention.

Beginning with the fundamentals of matter and the behavior of particles, the text lays a solid foundation for discussions on the source of radionuclides and their concentrations in air, water, and soil. Using predictive modeling, the authors examine the transfer of radionuclides through ecosystems and their effects on individual substances. The book provides up-to-date information on monitoring programs and legislation, detailed descriptions of detection systems, and evaluations of safety protocols in radioanalytical laboratories and in food processing. The authors devote considerable attention to the nuclear and radiological terrorist threat, illicit trafficking and masking of radioactive materials, event scenarios, and radiological forensics.

An exploration of the need for innovative mechanisms of governance in an era when human actions are major drivers of environmental change. The onset of the Anthropocene, an era in which human actions have become major drivers of change on a planetary scale, has increased the complexity of socioecological systems. Complex systems pose novel challenges for governance because of their high levels of connectivity, nonlinear dynamics, directional patterns of change, and emergent properties. Meeting these challenges will require the development of new intellectual capital. In this book, Oran Young argues that to achieve sustainable outcomes in a world of complex systems, we will need governance systems that are simultaneously durable enough to be effective in guiding behavior and agile enough to adapt to rapidly changing circumstances. While some insights from past research on governance remain valid in this setting, Young argues that we need new social capital to supplement mainstream regulatory approaches that feature rule making with an emphasis on compliance and enforcement. He explores the uses of goal setting as a governance strategy, the idea of principled governance, and the role of what is often called good governance in meeting the challenges of the Anthropocene. Drawing on his long experience operating on the science/policy frontier, Young calls for more effective collaboration between analysts and practitioners in creating and implementing governance systems capable of producing sustainable outcomes in a world of complex systems.

Ever since the first atomic bomb dropped on Hiroshima, the prospect of nuclear annihilation has haunted the modern world. But as John Mueller reveals in this eye-opening, compellingly argued, and very reassuring book, our obsession with nuclear weapons is unsupported by history, scientific fact, or logic. Examining the entire atomic era, Mueller boldly contends that nuclear weapons have had little impact on history. Although they have inspired overwrought policies and distorted spending priorities, for the most part they have proved to be militarily useless, and a key reason so few countries have taken them up is that they are a spectacular waste of money and scientific talent. Equally important, Atomic Obsession reveals why anxieties about terrorists obtaining nuclear weapons are essentially baseless: a host of practical and organizational difficulties make their likelihood of success almost vanishingly small. Mueller, one of America's most distinguished yet provocative international relations scholars, goes even further, maintaining that our efforts to prevent the spread of nuclear weapons have produced more suffering and violence than the bombs themselves, and that proliferation of the weapons, while not necessarily desirable, is unlikely to be a major danger or to accelerate. "The book will certainly make you think. Added bonus: It's immensely fun to read." -Stephen M. Walt, ForeignPolicy.com "Meticulously researched and punctuated with a dry wit. Mueller deserves praise for having the guts to shout that the atomic emperor has no clothes." -Arms Control Today "Mueller performs an important service in puncturing some of the inflated rhetoric about nuclear weapons.... An unusual and fruitful perspective on nuclear history." -Science Magazine

The atomic bombs dropped on Hiroshima and Nagasaki in August of 1945 unleashed a form of energy as mysterious as it was deadly. Suffering Made Real is the compelling story of the first attempts to understand how radiation affected the survivors of the atomic bomb and subsequent generations of Japanese. Arguing that Cold War politics and cultural values fundamentally shaped this scientific research, M. Susan Lindee examines the daily workings, expectations, purposes, and limitations of a project that raises disturbing questions about the ethical implications of using human subjects in scientific research. In 1946, an American scientific agency, the Atomic Bomb Casualty Commission (ABCC), was established in Japan to study the long-term biomedical effects of radiation on the survivors. Over the next twenty-nine years, American scientists and physicians, with funding from the Atomic Energy Commission, published hundreds of papers documenting the effects of radiation on aging, life span, fertility, and disease. In 1975, the agency was renamed and reorganized to permit greater Japanese input. How did the emerging Cold War affect the work of the ABCC? What problems seemed most important to ABCC scientists in their interpretation and public presentation of their data? Why did the ABCC have a "no-treatment" policy toward the survivors, one that conflicted with the ABCC's actual practices? Through a detailed examination of ABCC policies, archival materials, the minutes of committee meetings, newspaper accounts, and interviews with ABCC scientists, Lindee demonstrates how political and cultural interests were reflected in the day-to-day operations of this controversial research program. Set in aperiod of conflicting views on nuclear weapons and nuclear power, Suffering Made Real follows the course of a politically charged research program and reveals in detail how politics and cultural values can shape the conduct, results, and uses of science. As scientists, politicians, and health care professionals have become sensitized to the ethical problems of research on human subjects, this book speaks not only to the painful legacy of the atomic bomb, but also to contemporary concerns about the biomedical use of potentially dangerous substances on patients, children, prisoners, and other vulnerable citizens.

This collection presents an exchange of ideas among scientists and engineers about the economic and safety concerns surrounding environmentally induced materials problems which lead to nuclear power plant outages. Scientists and engineers concerned with the environmental degradation processes (corrosion, mechanical, and radiation effects) present their latest results on such topics as life extension/relicensing and materials problems associated with spent fuel storage and radioactive waste disposal. This collection will be of interest to utility engineers, reactor vendor engineers, plant architect engineers, researchers concerned with materials degradation, and consultants involved in design, construction, and operation of water reactors.

From the moment radiation was discovered in the late nineteenth century, nuclear science has had a rich history of innovative scientific exploration and discovery, coupled with mistakes, accidents, and downright disasters.

Mahaffey, a long-time advocate of continued nuclear research and nuclear energy, looks at each incident in turn and analyzes what happened and why, often discovering where scientists went wrong when analyzing past meltdowns.

Every incident has lead to new facets in understanding about the mighty atom and Mahaffey puts forth what the future should be for this final frontier of science that still holds so much promise."

This book addresses scientists and engineers involved in the areas of uranium mining and milling sites, clean-up measures, emissions of nuclear power plants and radioactive waste disposal, as well as political decision-makers. The topics covered are: impact on groundwater from radionuclide emission, analytical speciation techniques, chemical toxicity, radioisotope plant uptake, microbiology catalyzing U(6+) to U(4+) reduction, geochemical and reactive transport, case studies on abandoned uranium mines and milling sites, long-term storage of radioactive waste, passive in situ treatment techniques and risk assessment studies.