Host: Abstracts of Annual Meeting of the Geochemical Society of Japan
Pages 50-
Pesticides are primarily used in agricultural fields to control weeds, insects and fungal pests. This study conducted risk assessment of pesticide residues in Kurose River in Higashi-Hiroshima city, Japan. Water samples were analysed for cyanazine, simetryn, fenarimol and isoprothiolane and diazinon monthly for one year (Mar. 2016 – Feb. 2017) using HPLC. Ecotoxicological risk assessment was done based on Risk Quotient (RQ) index while non-carcinogenic risk for humans were estimated by hazard quotient (HQ). The study revealed fairly high RQ ＞1 for diazinon, consistent with reports elsewhere. However, all the pesticides posed insignificant human health risk (HQ ＜ 1).
