Li Honghong, Feng Yujie, Li Xuesheng, Zeng Dongqiang
Institute of Pesticide and Environmental Toxicology, Cultivation Base of Guangxi Key Laboratory for Agro-Environment and Agro-Product Safety, Guangxi University, Nanning, 530005, China.
Bull Environ Contam Toxicol. 2018 Jun;100(6):815-820. doi: 10.1007/s00128-018-2324-6. Epub 2018 Mar 21.
This work investigated drinking water contamination by 11 commonly used herbicides in sugarcane production areas in Guangxi, China. The work developed an analytical method for determination of these herbicides in environmental waters. This work studied herbicide residues in drinking water in Guangxi, China. The maximum residues and percent of detects were: (0.091 µg/L, 29.2%, atrazine), (0.018 µg/L, 8.3%, ametryne), (0.188 µg/L, 8.3%, aetolaehlor), (0.139 µg/L, 4%, simazine), (0.585 µg/L, 62.5%, atrazine), (0.311 µg/L, 33.3%, acetochlor), (0.341 µg/L, 58.3%, ametryne), (1.312 µg/L, 29.2%, metolachlor), (0.088 µg/L, 4.2%, alachlor), (0.127 µg/L, 14.3%, atrazine), and (0.453 µg/L, 7.1%, metolachlor), respectively. The results demonstrated that agricultural herbicides were detected in all water samples, including tap, surface and groundwater samples. Since the residues are generally below the safe limits established by the government authorities, the monitored 11 herbicides do not significantly affect the quality of the human environment. This work will provide scientific understanding of pesticide residues in drinking water standards in terms of its consistency with precautionary human health and environmental safety.
本研究调查了中国广西甘蔗产区11种常用除草剂对饮用水的污染情况。该研究开发了一种测定环境水体中这些除草剂的分析方法。本研究对中国广西饮用水中的除草剂残留进行了研究。最大残留量及检出率分别为：（莠去津，0.091微克/升，29.2%），（莠灭净，0.018微克/升，8.3%），（乙草胺，0.188微克/升，8.3%），（西玛津，0.139微克/升，4%），（莠去津，0.585微克/升，62.5%），（乙草胺，0.311微克/升，33.3%），（莠灭净，0.341微克/升，58.3%），（异丙甲草胺，1.312微克/升，29.2%），（甲草胺，0.088微克/升，4.2%），（莠去津，0.127微克/升，14.3%），以及（异丙甲草胺，0.453微克/升，7.1%）。结果表明，在所有水样中均检测到了农业除草剂，包括自来水、地表水和地下水样。由于残留量通常低于政府当局规定的安全限值，所监测的11种除草剂对人类环境质量没有显著影响。本研究将为饮用水标准中农药残留与预防性人类健康和环境安全的一致性提供科学认识。
