15. Occupational Radiation Exposure Limits

Radiation exposure levels in occupational workers should be set at 200 mrems of anthropogenic exposure per year. The limit for all other individuals should be 100 mrems of anthropogenic exposure per year.

Anthropogenic exposure is defined as any radiation or additional radiation originating from a source which would otherwise not have existed if it were not for human activities and manipulations of the natural environment. Building materials, for example, with radiation emissions in excess of one standard deviation above the average of all building materials within the same, broad category, should have this excess radiation classified as anthropogenic in origin.

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