A study of transfers of naturally occurring radioactive materials (NORM), thorium, uranium and their progeny, from soil to wild plant species was performed to evaluate the environmental impact in an area of enhanced natural and legacy radioactivity in Norway. Three sites were chosen for the study: NORM legacy mining, undisturbed 232Th-rich site and reference site.

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https://pubs.rsc.org/en/Content/ArticleLanding/2020/EM/C9EM00408D#!divAbstract

Source: Royal Society of Chemistry