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The rate at which it is transferred from the air to the ground is controlled in part by the weather. The rate of delivery of Be-7 from the air to the ground in Japan (source M. Yamamoto et al., Journal of Environmental Radioactivity, 2006, 86, 110–131)
Radioactive contamination, also called radiological pollution, is the deposition of, or presence of radioactive substances on surfaces or within solids, liquids, or gases (including the human body), where their presence is unintended or undesirable (from the International Atomic Energy Agency (IAEA) definition).
Naturally occurring radioactive materials (NORM) and technologically enhanced naturally occurring radioactive materials (TENORM) consist of materials, usually industrial wastes or by-products enriched with radioactive elements found in the environment, such as uranium, thorium and potassium and any of their decay products, such as radium and radon. [1]
The water has a radioactive material known as phosphogypsum, a byproduct from using phosphate to create fertilizer. Phosphogypsum is placed into stacks and maintained to limit the amount ...
A radioactive source is a known quantity of a radionuclide which emits ionizing radiation, typically one or more of the radiation types gamma rays, alpha particles, beta particles, and neutron radiation. Sources can be used for irradiation, where the radiation performs a significant ionising function on a target material, or as a radiation ...
Other sources of groundwater contamination included: radioactive waste dumps on the territory of “exclusion zone”; cooling water reservoirs connected with aquifer; initial radioactive fallout which took place in first hours after the accident; and forest fires that led to accelerated spread of contaminated particles on soils of the ...
Tokyo Electric Power Company (Tepco) started releasing on Thursday more treated radioactive water from Japan's wrecked Fukushima Daiichi nuclear power plant, as part of a plan that has caused ...
The Fukushima Daiichi nuclear power plant will start releasing treated and diluted radioactive wastewater into the Pacific Ocean as early as Thursday — a controversial step that the government ...