Health Risk Assessment of Four Organophosphorus Pesticides in the Body of Wild Fish in the Longjiang River
The pollution of organic pesticides in fish in water bodies affects the safety of ecology and human health.This article determined and analyzed the content of four organic phosphorus pesticides(dimethoate,chlorpyrifos,parathion,and malathion)in the flesh,bones,scales,gills,fins,and viscera of various wild fish species in the Longjiang River.It was found that parathion was detected in various wild fish species in the Longjiang River,and malathion was detected in some fish species.Through the analysis of the organic phosphorus content in various parts of the fish body,it was found that the organic phosphorus in the body of wild fish in the Longjiang River is mainly enriched in the gills and viscera of the fish.Due to their growth properties,the organic phosphorus content in fish bones,fins,and other parts also increases with the growth of the fish.The hazard coefficient method was used to evaluate the health risk of the measured fish meat parts,and the results showed that their THQ values were all less than 1,indicating no significant health risk.It is recommended that residents in the Longjiang River Basin only consume fish parts and not other parts of the fish body.
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