Abstract

Human could exposure to pesticides via various exposure pathways. Worldwide jurisdictions are making efforts to manage human health risk by regulating pesticide standards in residential soil, drinking water, and agricultural commodity. An assumption is made that if the pesticide standards were derived by human health risk model with essential toxic data, a relationship may exist between the standard values from different exposures. Implied Dose Limit (IDL) was introduced in this research to convert pesticide standards in different exposure pathways to pesticide exposure mass loading. Comparing all the IDLs of pesticides, it illustrates that pesticide standards in soil are probably more conservative than those in drinking water and food for most largely used pesticides worldwide. Result also shows that there is no significant relationship between any two IDLs computed from these exposure pathways, suggesting that worldwide jurisdictions derived the pesticide standards independently without considering the impacts of other major exposures.

Authors and Affiliations