For other carcinogens and mutagens, it is scientifically possible to identify levels below which exposure is not expected to lead to adverse effects.
I dtaca le carcanaiginí agus só-ghineacha eile, is acmhainn don eolaíocht leibhéil a shainaithint nár dhóigh go dtarlódh éifeachtaí díobhálacha faoina mbun.