Natural sources account for most of the radiation we all receive each year. Up to a quarter originates mainly from medical procedures.
There has been more than 40 years of experience in applying international radiation safety regulations at uranium mines. Uranium mining companies have taken steps to reduce radiation doses wherever and whenever they can.
Radioactive materials which occur naturally and where human activities increase the exposure of people to ionising radiation are known by the acronym 'NORM'. NORM results from activities such as burning coal, making and using fertilisers, oil and gas production.