Who Ipcs

Canada

Norway

fWHO: World Health Organization; FAO: Food and Agriculture Organization of the United Nations; JEFCA: Joint FAO/WHO Expert Committee on Food Additives; JMPR: Joint FAO/WHO Meeting on Pesticide Residues; UNSCEAR: United Nations Scientific Committee on the Effects of Atomic Radiation; NCRP: National Council on Radiological Protection; ICRP: International Council on Radiological Protection; IPCS: International Programme on Chemical Safety

£In a few instances, WHO (JEFCA/JMPR) has used a UF/NOEL for agents found to act via genotoxic mechanisms

§When data are sufficient to support different dose-response models, exceptions occur. y For agents with an unknown mode of action, nonthreshold modeling is applied. HTDx is the lowest daily dose inducing increased tumor incidence.

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