“…These associations have been cited as cofactors with 222 Rn in links between mine dusts and lung cancer. 39,44 The natural radio-elements 232 Th and 40 K are also associated with many U deposits. They are of little economic importance, but Th can be of environmental significance because it reaches high levels in certain types of mineral deposits and has high energy emissions.…”
Section: Environmental Concerns About Uraniummentioning
“…These associations have been cited as cofactors with 222 Rn in links between mine dusts and lung cancer. 39,44 The natural radio-elements 232 Th and 40 K are also associated with many U deposits. They are of little economic importance, but Th can be of environmental significance because it reaches high levels in certain types of mineral deposits and has high energy emissions.…”
Section: Environmental Concerns About Uraniummentioning
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