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Uranium is a naturally occurring metal, which is widespread in nature. It is present in the ocean and certain types of soils and rocks, especially granite. Natural uranium is also released into the environment from various activities such as the use of phosphate fertilisers, mining, and combustion from coal and other fuels.

Uranium levels are naturally high in many areas in the UK, particularly where radon levels are high and the underlying rock is predominantly granite. Natural uranium decays to release radon gas into the environment. In other parts of the world, especially in certain areas of the USA and Canada, natural uranium levels in water are particularly high due to the sedimentary rocks. Read more…

             Uranium is an element to be found ubiquitous in rock, soil, and water. Uranium concentrations in natural ground water can be more than several hundreds μg/l without impact from mining, nuclear industry, and fertilizers. Considering the WHO recommendation for drinking water of 15 μg/l (has been as low as 2 μg/l before) due to the chemical toxicity of uranium the element uranium has become an important issue in environmental research. Read more…