부산대학교 도서관

Herbicides (HBCs) play a significant role in modern agriculture, but their prolonged use has raised concerns about their potential adverse impacts on agricultural produce safety and the ecological environment, especially in black soil regions. In this typical region, we are characterizing, for the first time, the exposure of herbicides through drinking and non-potable water routes and assessing their non-carcinogenic and carcinogenic health risks for both children and adults. The findings indicate that following long-term HBC application, the maximum detected concentration of HBCs reached up to 6288 ng/L, with higher detection rates of acetochlor, fomesafen, bentazone, and atrazine (ATZ). Both non-carcinogenic and carcinogenic exposures to HBCs were found to be higher for children in comparison to adults. The non-carcinogenic risk values for both children and adults resulting from HBCs in surface water and groundwater at all sampling sites remained well below 1, signifying that they are within acceptable limits. However, the maximum carcinogenic risk associated with ATZ in water was estimated to be 10–5for children and 10–6for adults. In terms of surface water samples collected in April, July, and September, it was observed that 63, 100, and 40% of them, respectively, were at low-risk levels for children. This study underscores the significance of monitoring organic contaminants in environmental media, particularly in typical black soil areas where long-term herbicide applications are prevalent, to elucidate residue characteristics and potential health risks to humans. Particular attention is directed towards the presence of atrazine in water, as it poses a potential threat to human health. The findings of this study hold the potential to promote environmentally sustainable green agricultural practices and facilitate the establishment of regulatory standards for controlling herbicide levels in environmental media.