[Problems concerning the integration of "derived-no-effect-levels" (DNELS) into occupational safety and health regulations].


Under the rules of chemical safety assessment, derived-no-effect-levels (DNELs) should be established for all registration-subjected substances, which are put on the market in quantities of 10 tonnes and more per year. DNELs represent exposure levels above which humans should not be exposed to. The purpose of DNELs is to serve as a reference value for… (More)


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