Groundwater radioactive hazard release. Medical search. Frequent questions

The Dené were not told of the hazards of mining uranium, and breathed radioactive dust, slept on the ore, and ate fish from the tailings ponds. (wikipedia.org)
In the lands of the Navajo Nation-covering parts of Arizona, Colorado, New Mexico, and Utah (the Four Corners area)-some water has unhealthy levels of toxic materials including metals such as arsenic , selenium, and vanadium as well as radioactive materials including uranium and radium. (cdc.gov)
When ingested, uranium is stored in the skeleton and slowly released to the blood where it is eliminated by the kidneys. (cdc.gov)
It is the earth's only naturally produced radioactive gas and comes from the breakdown of uranium in soil, rock, and water. (purewaterproducts.com)
Taking notice of the growing military use of DU, we must consider not only the increased threats of radioactive battlefields but also the whole dirty cycle in the uranium industry connected with the DU technology and its impact on health and the environment in the surroundings of test areas and in the uranium industry itself. (ratical.org)
Further health hazards result from the chemical toxicity of the uranium to the kidneys, and from the radiation of the uranium (an alpha emitter). (ratical.org)
The radiometric device detects associated radioactive minerals which are decay products of the uranium, rather than the uranium itself. (world-nuclear.org)
Moreover, rare earth ores typically contain radioactive uranium and thorium, creating health hazards. (miningsee.eu)
It occurs naturally in minute quantities as an intermediate step in the normal radioactive decay chains through which thorium and uranium slowly decay into various short-lived radioactive elements and eventually into stable lead . (knowpia.com)
Since thorium and uranium are two of the most common radioactive elements on Earth, while also having three isotopes with half-lives on the order of several billion years, radon will be present on Earth long into the future despite its short half-life. (knowpia.com)
Radioactive uranium contamination would become part of the 'dross' during the melting, leaving the majority of metals to be cast as ingots for future use. (wise-uranium.org)
The uranium 'dross' would be sent to low level radioactive disposal cells in the West. (wise-uranium.org)
These standards limit radiation releases and doses to the public from the normal operation (non-emergency) of nuclear power plants and other uranium fuel cycle facilities. (epa.gov)
This regulation sets standards for the protection of the public health, safety and the environment from radiological and non-radiological hazards associated with uranium and thorium ore processing, and disposal of associated wastes. (epa.gov)
Extraction wells then collect the groundwater, which is processed at the surface to recover the uranium. (epa.gov)
Radon is a naturally occurring radioactive gas that is created as part of the natural radioactive decay chain of uranium. (cdc.gov)
Radioactive substances are associated with nuclear power plants and uranium mines. (swat-radon.com)
Those fires, along with inadequate storage procedures and regular day-to-day operations, also released uranium, beryllium, tritium and carbon tetrachloride, a carcinogenic cleaning solvent, into the area. (huffpost.com)

Based on this limited testing, this sinkhole sludge is a hazard because of the presence of the diesel fuel, which can contaminate air and groundwater. (stuarthsmith.com)
Higher sea level (a consequence of climate change), particularly in low lying areas, can also contaminate groundwater by pushing to the surface toxic substances that have been underground for many years. (theglobaleducationproject.org)
For example, if these chemicals are poured down the drain or placed in a dumpster, they can contaminate groundwater and harm wildlife. (tkgservices.com)
If these materials are not disposed of properly can contaminate groundwater and harm wildlife. (tkgservices.com)
Not only has the chemical cocktail inserted into the ground been shown to contaminate groundwater and drinking water, but fracking fluid also picks up toxins on its trip down to the bedrock and back up again that had previously been safely locked away underground. (prwatch.org)

A community member petitioned ATSDR to investigate the site to find out whether soil contamination left on the site could be a health hazard to future residents and workers and to the surrounding community during the project's construction phases. (cdc.gov)
Thus, the radioactive contamination problem is multi-disciplinary. (copernicus.org)
Past use of solvents and deicing agents has resulted in TCE and nitrate contamination in groundwater that has been detected in water from wells serving the base water supply. (cdc.gov)
Based upon the distance from the contamination to the Haven well, the rate of groundwater movement, and the rate of naturally occurring degradation, it is unlikely that TCE contamination will reach the Haven well at levels that pose a health risk. (cdc.gov)
A fire at the Dow Chemical Co. Rocky Flats plant Sunday released a small amount of radioactive plutonium contamination, a plant spokesman said. (huffpost.com)

Dickson B.L., Evaluation of the Radioactive Anomalies Using Radium Isotopes in Groundwaters. (radioprotection.org)
The U-238 series has 14 radioactive isotopes in secular equilibrium, thus each represents about 11 kBq/kg (irrespective of the mass proportion). (world-nuclear.org)

No on-site contaminants or dust releases from the Atlantic Station Redevelopment Project are at levels that would cause adverse health effects, according to the public health consultation the Agency for Toxic Substances and Disease Registry (ATSDR) is releasing today. (cdc.gov)
Contaminants removed have included oil, petroleum products, toxic substances and extremely hazardous materials such as radioactive contaminants and biological/chemical warfare products. (shawgrp.com)
Chemicals used to be illegally disposed of in fire pits and by shooting metal cans that would explode, releasing the contaminants into the air. (avoidingregret.com)

Radon is a naturally occurring radioactive element found in most groundwater. (purewaterproducts.com)
You cannot see or smell radon, but it can become a health hazard when it accumulates indoors. (purewaterproducts.com)
Also, breathing radon released to the air from household water uses can increase the risk of lung cancer. (purewaterproducts.com)
Unlike all other intermediate elements in the aforementioned decay chains, radon is, under standard conditions, gaseous and easily inhaled, and therefore a health hazard. (knowpia.com)
[5] Climate change may cause radon previously trapped underground to be released as permafrost thaws, particularly in areas like the Arctic, Alaska, Canada, Greenland and Russia. (knowpia.com)
The tiny radioactive particles released from radon gas can take a long time to make their way into someone's lungs and become trapped. (swat-radon.com)
Radon gas is radioactive and damages cells which can result in cancerous tumors. (swat-radon.com)
Radon 's radioactive particles are known to settle within the lining of the lungs and cause cell damage there. (swat-radon.com)
However, the radioactive byproducts of radon are a deadly foe that's found right at home where you're supposed to be the safest. (swat-radon.com)
Radon and its progeny are radioactive pollutants that originate from natural sources such as rock, soil, groundwater, natural gas, and mineral building materials. (franksheating.com)
Radon-222 is the radioactive decay product of radium-226, which is found at low concentrations in almost all rock and soil. (wilsonhvac.com)
This site provides information about the hazards and management of radon. (wilsonhvac.com)
As it undergoes radioactive decay, radon-222 releases alpha radiation and changes to polonium-218, a short-lived radioactive solid. (wilsonhvac.com)
Municipal water systems hold and treat water, which helps to release radon so that levels are very low by the time the water reaches our homes. (wilsonhvac.com)

Nationally, fracking released 450,000 tons of pollutants into the air that can have immediate health impacts. (environmentamerica.org)
Click on the tabs below to see the regulations and laws that protect the public and environment from radioactive pollutants. (epa.gov)
Groundwater pollution is imminent in most developing countries as a result of increased anthropogenic activities apart from possible natural pollutants. (scirp.org)

Lebecka J., Skubacz K., Chałupnik S. and Wysocka M., Skażenia promieniotwórcze środowiska naturalnego na Górnym Śląku powodowane przez wody kopalniane i promieniotwórcze osady (Radioactive pollution of the natural environment in Upper Silesia, caused by mine waters and sediments). (radioprotection.org)
Air pollution: Fracking-related activities release thousands of tons of health-threatening air pollution. (environmentamerica.org)
Floods can be caused by bad drainage facilities and droughts can be caused by over-irrigation or groundwater pollution. (maindifference.net)
This study reviewed groundwater pollution and discussed possible remediation measures. (scirp.org)
Groundwater pollution may cause ecosystem imbalance apart from severe sickness which may lead to death. (scirp.org)
Prevention of groundwater pollution is more appropriate than remediation. (scirp.org)
In addition, most pollution of groundwater is anthropocentric and can be prevented through intensive health education. (scirp.org)
Talabi, A. and Kayode, T. (2019) Groundwater Pollution and Remediation. (scirp.org)
The process, which injects water and chemicals into the ground to release "natural" gas and oil from shale bedrock, has been shown to contribute significantly to air and water pollution and has even been linked to earthquakes . (prwatch.org)
Chemicals linked to cancer are present in nearly all of the steps of extraction -- in the fracking fluids, the release of radioactive and other hazardous materials from the shale, and in transportation and drilling related air pollution and contaminated water disposal. (prwatch.org)
Benzene, which the U.S. EPA has classified as a Group A, human carcinogen, is released in the fracking process through air pollution and in the water contaminated by the drilling process. (prwatch.org)

An average or expected amount of a substance or radioactive material in a specific environment, or typical amounts of substances that occur naturally in an environment. (cdc.gov)
Geologists have long known soil and rock contain naturally occurring radioactive materials that can become concentrated through activities like fracking, in which sand and chemicals are pumped thousands of feet underground to release oil and gas from tight rock. (publicintegrity.org)
The Marcellus Shale in the northeast part of the United States also naturally contains radioactive materials, including radium, which is largely locked away in the bedrock. (prwatch.org)

Radioactive materials persist in the soil and groundwater, and leftover waste from the reactor trickles from leaky underground tanks. (sciencehistory.org)
The federal public health agency examined environmental data collected for site investigation reports, including soil sampling, air monitoring and groundwater sampling data. (cdc.gov)
In fact this topic involves regional and global transport and local reactions of radioactive materials through atmosphere, soil and water system, ocean, and organic and ecosystem, and its relation with human and non-human biota. (copernicus.org)
The release of radioactive materials by human activity (such as nuclear accidents) are both severe hazard problem as well as ideal markers in understanding geoscience at all level of the Earth because it cycles through atmosphere, soil, plant, water system, ocean, and lives. (copernicus.org)
Areas of contaminated soil and groundwater under the flight line have been thoroughly studied. (cdc.gov)

But the water buildup continues, and the short-term storage tanks that TEPCO has been relying on in the past are no longer a solution, so the operator is to set up a bypass system to prevent further buildup of the other, highly radioactive groundwater. (rt.com)
It is still highly radioactive. (epa.gov)

Plumes of strontium-90 and heavy metals leaked into the groundwater, and trace amounts of tritium have been found in local milk and wine. (uchicago.edu)
They dilute this with seawater so that it is legally safe, but scientifically the same amount of radioactive tritium is contained. (fukushima-diary.com)

If we'd stopped producing in 1945, we'd have a minuscule amount [of radioactive waste] compared to what's out there in those tanks now," Franklin says. (uchicago.edu)

The median annual wage for hazardous radioactive materials removal workers, according to the U.S. Bureau of Labor Statistics was $37,590 in 2014 - $18 per hour. (wikipedia.org)
The France-based laboratory, Commission de Recherche et d'Information Independentantes sur la Radioactivite (CRIIAD) reported elevated levels of radioactive materials in the area surrounding the mine. (wikipedia.org)
Workers were not informed of the dangers of working with radioactive materials and the health effects thereof. (wikipedia.org)
On September 23, 2010, workers were ordered to work despite the fact that the mine could not provide them with dust masks to protect them against radioactive materials. (wikipedia.org)
In 1945, Fiordland, Milford Sound, Nancy Sound and other locations were surveyed, resulting in the December 7, 1945 NZ Atomic Energy Act granting full ownership of any discovered radioactive elements - however not to the indigenous peoples whose ancestral lands contained these materials. (wikipedia.org)
ATSDR also examined complaints of airborne dust from the site remediation and construction phases of the project, improperly removed asbestos-containing materials and the presence of radioactive materials. (cdc.gov)
These radioactive materials are called orphan sources and are sometimes found in recycled scrap metal. (cdc.gov)
ATSDR found no evidence of radioactive materials at the Atlantic Station site. (cdc.gov)
The session gathers geoscientific aspects such as dynamics, reactions, and environmental/health consequences of radioactive materials that are massively released accidentally (e.g. (copernicus.org)
The radioactive materials are known as polluting materials that are hazardous for human society, but are also ideal markers in understanding dynamics and chemical/biological/electrical reactions chains in the environment. (copernicus.org)
5 year dense measurement data by the most advanced instrumentation after the Fukushima Accident in 2011, and other events, we can improve our knowledgebase on the environmental behavior of radioactive materials and its environmental/biological impact. (copernicus.org)
Shaw was one of the first environmental remediation and restoration firms capable of providing comprehensive technical services necessary for handling high-hazard materials. (shawgrp.com)
This toxic wastewater often contains cancer-causing and even radioactive materials, and has contaminated drinking water sources from Pennsylvania to New Mexico. (environmentamerica.org)
60% of the most hazardous liquid waste in the United States, 34 billion liters of solvents, heavy metals, and radioactive materials, is injected straight into deep groundwater via thousands of injection wells. (theglobaleducationproject.org)
If you don't discard these toxic materials properly, they can pose a grave fire hazard. (tkgservices.com)
These can include batteries, asbestos, and radioactive materials. (tkgservices.com)
to ns of radioactive materials experts call an "orphan" waste stream. (publicintegrity.org)
It was designated as a Superfund site in the early 1990s, and the radioactive materials have been removed. (huffpost.com)
In fact, they're keeping the most contaminated structures for last, so they have somewhere to store radioactive materials in the meantime. (avoidingregret.com)
Grout materials are commonly used to immobilize low-level radioactive waste. (bvsalud.org)

As the local newspaper, the Tri-City Herald, reports, this has happened multiple times in the last five years, such as when a building demolition released plutonium dust that blew for miles, or when plutonium and americium particles contaminated workers' cars, including a rental later returned to the company. (uchicago.edu)
Under the oversight of Dow Chemical and, later, Rockwell International, plant operators lost track of more than 2,600 pounds of plutonium and other radioactive material, as documented in later lawsuits and a Government Accountability Office assessment. (huffpost.com)
This suggests that plutonium release from sediments during stratification is not the dominant mechanism driving plutonium cycling in the pond. (bvsalud.org)

Why would anyone visit a radioactive ghost town or the remnants of a nuclear reactor? (sciencehistory.org)
The source of the radioactive leak at the earthquake-stricken Fukushima Daiichi nuclear power plant was finally identified by the facility's operator TEPCO to be in the primary containment vessel of reactor 3, authorities reported. (rt.com)
The reactor is being built to ensure that only minor quantities of radioactive substances are discharged to the surrounding area even if the highly unlikely were to occur, that is, if an accident were to happen. (balticworlds.com)
Until 1971, Hanford's radioactive reactor effluent was discharged straight into the Columbia River, which has long been a vital waterway to the nearby towns of Richland, Pasco, and Kennewick, referred to today as the Tri-Cities. (uchicago.edu)
They must keep cooling the crippled reactors by water, but additionally groundwater keeps flowing into the reactor buildings from the broken parts. (fukushima-diary.com)

Risk is defined as the probability that exposure to a hazard will lead to a negative consequence, or more simply, a hazard poses no risk if there is no exposure to that hazard. (maindifference.net)
Environmental public health tracking is the ongoing collection, integration, analysis, and interpretation of data about environmental hazards, exposure to environmental hazards, and health effects potentially related to exposure to environmental hazards. (cdc.gov)
States have also been slow to assess and curb risks from exposure to the waste, which can remain radioactive for millennia. (publicintegrity.org)
The Institute of Medicine released a report in December 2011 that links breast cancer to exposure to benzene. (prwatch.org)

Many buildings are still being demolished, and radiation leaks periodically force workers to take shelter, as happened in May 2017 when a tunnel used to store radioactive waste collapsed. (sciencehistory.org)

Use of contaminated drinking water poses no apparent health hazard. (cdc.gov)

Drinking water comes from groundwater (wells and springs) and surface water (rivers, lakes, streams). (wawater.com)
A safe water supply is crucial to public health and plays a critical role as groundwater wells and surface water, not subject in the success of our society and economy. (cdc.gov)

While it is possible to remove the radioactive fuel at this time, TEPCO wants to first plug the leak and fill up the space with more water as an additional measure against radiation. (rt.com)
A health physicist is an individual who has specific training in radiation safety protecting people and their environment from potential radiation hazards. (cdc.gov)
Tomza I. and Lebecka J., Radium-bearing waters in coal mines: occurrence, methods of measurements and radiation hazard. (radioprotection.org)
There is enough radiation present to show that natural underground radioactive material has been concentrated in the sink hole. (stuarthsmith.com)
Even though the diesel hydrocarbons are currently the greater hazard, radiation testing should continue. (stuarthsmith.com)
Bill Kennedy, a radiation expert at the consulting firm Dade Moeller, called radioactive drilling waste "virtually unregulated" and said consistent standards are needed to "protect workers, protect the general public, protect the environment. (publicintegrity.org)
A New York Times expose in 2011, released secret EPA documents that illustrated how this water is sometimes sent to sewage plants that are not designed to process the dangerous chemicals or radiation which in some instances are used in municipal drinking supplies or are released into rivers and streams that supply drinking water. (prwatch.org)

Toxic wastewater: Fracking produces enormous volumes of toxic wastewater-often containing cancer-causing and even radioactive material. (environmentamerica.org)
Approximately 13 kg of dust, one ton of radioactive residue, 9,600-12,000 cubic meters of waste gas, and 75 cubic meters of wastewater are generated for mining one ton of rare earth. (miningsee.eu)

Byproducts of hydraulic fracturing, or fracking, create radioactive waste like the truckload shown here in West Virginia. (publicintegrity.org)

radioactive wastes. (epa.gov)

The coolant water comes out the other end mixed with radioactive waste. (rt.com)
In New Mexico alone, waste pits from all oil and gas drilling have contaminated groundwater on more than 400 occasions. (environmentamerica.org)
She has devoted a decade of activism to exposing the activities of the Australian company and trying to stop more radioactive waste from accumulating in her hometown. (johnfeffer.com)
It has simply shifted to different targets, such as dealing with the radioactive waste produced at the facility in Kuantan and mobilizing to stop the construction of a permanent waste storage facility on site. (johnfeffer.com)
These criteria apply to the certification and recertification of compliance with the radioactive waste disposal standards at the Waste Isolation Pilot Plant (WIPP) in New Mexico. (epa.gov)
In March, Kentucky's attorney general opened an investigation into two landfills he alleged illegally accepted radioactive drilling waste from West Virginia. (publicintegrity.org)
Both fires sent plumes of radioactive waste into the air, contaminating miles of land downwind. (huffpost.com)

The news comes just as the facility's operator has ensured that the groundwater leakage issue (another problem) can also be solved by simply letting the water leak into the Pacific, instead of the cumbersome process of finding ways to store it, or block it from seeping into the ocean. (rt.com)
However, the toxic chemical-rich leaching ponds can leak into groundwater if not appropriately secured, negatively impacting waterways. (miningsee.eu)

The terms "hazard" and "risk" are often used interchangeably however, in terms of risk assessment, they are two very distinct terms. (maindifference.net)
Identification of hazards assumes that the potential targets are defined, and is the first step in performing a risk assessment. (maindifference.net)
The EWG Health Guideline of 0.004 ppb for arsenic was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. (ewg.org)
The EWG Health Guideline of 0.06 ppb for bromodichloromethane was proposed in 2018 by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. (ewg.org)

To ensure that the water is indeed safe for release, TEPCO's findings had to be backed up by the Japan Atomic Energy Agency and the Japan Chemical Analysis Center. (rt.com)
It seeps through the ground to both surface water and groundwaters. (cdc.gov)
A rise in sea level forces underground water levels up, causing increased saltwater intrusion into fresh groundwater. (theglobaleducationproject.org)
Your water comes from a single well (groundwater). (wawater.com)
Simply put, fracking is a process whereby water is combined with sand and chemicals and injected at high pressure into the ground, in order to fracture the shale rocks and therefore release the natural gases . (anhinternational.org)
2.5% of the world's freshwater, surface water and groundwater have 0.4% and 30.1% representations respectively [2]. (scirp.org)
Certain compounds, such as toluene, that are released as gas at the wellhead and also found in water contaminated by fracking have the potential to harm pregnant women or women wishing to become pregnant. (prwatch.org)
but state regulations vary widely, and there is no requirement to report well water monitoring data at a national level.9 The U.S. Geological Survey (USGS) is the nation's primary agency providing information and research on groundwater resources. (cdc.gov)

But radioactive material getting into the general public does not need autonomy. (uchicago.edu)
Friable material being material that can become airborne, release asbestos through the air and pose respiratory hazards. (farmvilleherald.com)
He said friable material would need to be wet down and put into bags to avoid spreading the hazard. (farmvilleherald.com)
She said her fellow workers thanked her by contaminating her protective equipment with radioactive material. (huffpost.com)

REEs are primarily mined using two energy-intensive methods and possess a high risk of environmental and health hazards as they release toxic chemicals into the environment. (miningsee.eu)
In 1998 the US Environmental Protection Agency did a study of the hazard data available on 2,863 chemicals that the US imported or produced in quantities greater than 1 million lbs/year. (theglobaleducationproject.org)
Of the 203 chemicals on the toxic release inventory, only 54% had basic test data. (theglobaleducationproject.org)
Over 70,000 new chemicals have been brought into commercial production and released to the environment in the last 100 years. (theglobaleducationproject.org)
After all, there are lots of exotic chemicals that have made their way into the groundwater here. (avoidingregret.com)

Biological particles, such as animal and insect allergens, viruses, bacteria, and molds, can cause allergic reactions, infectious diseases, and/or can produce toxic products that may be released into the air. (franksheating.com)

Shaw has an exceptional record of providing rapid response environmental protection services in emergency scenarios, including cleanup and assessments in natural disasters such as hurricanes, floods, and earthquakes, as well as responses to transportation accidents, facility disasters, refinery spills and releases, and train derailments. (shawgrp.com)
Allen Hill, 66, a retired petrochemical industry worker, questioned the length of time for tests to fingerprint or provide a blueprint of the chemical makeup of the natural gas releases, for example. (stuarthsmith.com)
Hazards can be both natural or human induced. (maindifference.net)
Sometimes natural hazards such as floods and drought can be caused by human activity. (maindifference.net)
Hazards may also be classified as natural, anthropogenic, or technological. (maindifference.net)
Mentioning how people handle natural hazards and recovery from such tragedies is essential for the paper. (custom-writing.org)

In the absence of being able to visit Chernobyl, I'll take my stateside radioactive wastelands where I can get them. (avoidingregret.com)

In addition, they can also release toxic fumes into the air, which can cause respiratory problems and other health issues. (tkgservices.com)

During the visits, he meets with local residents and officials and explains to them the health effects of the radioactive substances that are being investigated or that have been discovered at the site. (cdc.gov)
If the whole contents of a cylinder is released during a fire, lethal air concentrations of toxic substances can occur within distances of 500 to 1,000 meters. (ratical.org)

If cylinders are involved in long-lasting fires, large amounts of UF 6 can be released within a short time. (ratical.org)

Bartlett said CFLs and other flourescent lightbulbs are recycled through a program the landfill has with Hampden-Sydney College (HS-C). Once Bartlett said they collect enough bulbs, they will transport them to HS-C, where the lightbulbs are discarded through a specialized, enclosed machine that breaks up the lightbulbs without releasing mercury vapor inside them. (farmvilleherald.com)

A hazard is any agent that can cause harm or damage to humans, property, or the environment. (maindifference.net)
Producers use the molecules that decomposers release back to the environment, explaining the relationship between decomposers and producers. (netizenme.com)

The topic also involves hazard prediction and nowcast technology. (copernicus.org)
Another class of hazard does not involve release of stored energy, rather it involves the presence of hazardous situations. (maindifference.net)
The video game involves guiding a character on a skateboard past all kinds of hazards. (maindifference.net)

What they found was that the feared presence of strontium-90 and cesium-134 and -137 was way below the health hazard threshold. (rt.com)

A hazard is an agent which has the potential to cause harm to a vulnerable target. (maindifference.net)
Hazards can be dormant or potential, with only a theoretical probability of harm. (maindifference.net)

When you think of health hazards in Shelton CT , a slew of external threats come to mind. (swat-radon.com)

this process releases toxic properties like beryllium and lead into the air. (tkgservices.com)

In a 1959 incident involving a partial meltdown of the SRE power plant, radioactive gasses were emitted into the atmosphere. (avoidingregret.com)

An event that is caused by interaction with a hazard is called an incident. (maindifference.net)

About 560 tons is to be released in the first round, which will only take about two hours, according to an official with the Ministry of Economy, Trade and Industry. (rt.com)

The revised document was released for a 30-day public comment period. (cdc.gov)
From World War II to the 1970s, the Oregon Public Health Division called the Columbia the most radioactive river in the world. (uchicago.edu)
Classified documents later released by the DOE show that biologists considered that it "may be necessary to close public fishing" at certain parts of the river, but public-relations and security concerns prevented them from speaking out. (uchicago.edu)

Chemicals and Drugs10

Analytical, Diagnostic and Therapeutic Techniques and Equipment1

Phenomena and Processes5

Disciplines and Occupations4

Technology, Industry, Agriculture1

Health Care18

Geographicals2

Uranium18

Contaminate5

Contamination5

Isotopes2

CONTAMINANTS3

Radon14

Pollutants3

Pollution11

Naturally3

Soil5

Highly radioactive2

Tritium2

Amount of radioactive1

Materials20

Plutonium3

Reactor5

Exposure4

Store radioactive1

Poses1

Wells2

Radiation7

Wastewater2

Byproducts1

Wastes1

Waste7

Leak2

ASSESSMENT4

Water8

Material4

Chemicals5

Particles1

Natural6

Chernobyl1

Respiratory1

Substances2

Amounts1

Mercury1

Environment2

Involves3

Found1

Harm2

Threats1

Lead1

Plant1

Interaction1

Tons1

Public3