Fard Neematollah Jaafarzadeh Haghighi, Fard Masoud Panahi, Haghighipur Sadegh, Fard Ebrahim Sharifi, Jorfi Sahand
Environmental Technologies Research Center, School of Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
Student Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
J Environ Health Sci Eng. 2022 Aug 19;20(2):881-888. doi: 10.1007/s40201-022-00828-9. eCollection 2022 Dec.
In this investigation, the concentration of some organochlorine pesticides (OCPs) was monitored in the Karkheh River and the risk assessment of exposure to these pesticides residue through the water supply system was calculated. The mean concentrations of Lindane, Heptachlor, Chlordane, Dieldrin, Endrin, DDT were 0.135, 0.123, 0.077, 0.081, 0.076, 0.01 µg/L, respectively. The average risk of Lindane, Heptachlor, Chlordane, Dieldrin, DDT, and Endrin for adults was 1.2 E-6, 1.1E-6, 7E-7, 7.6E-7, 9E-8, 7E-7 or non-carcinogenic risks to adults decreased in Dieldrin > Chlordane > Heptachlor > Endrine > DDT > lindane. The hazard index for all organochlorine pesticides was less than 1. These results did not raise concerns about the health of people exposed to studied pesticides. Total concentrations of all OCPs in the Karkheh River were below guidelines for individual pesticides. The hazard quotient showed that the consumption of treated water from the Susangard drinking water treatment plant has no non-cancerous effects. The HI was less than 1 that indicating the risk of exposure to a mixture of OCPs was not significant. Developing policies to reduce the use of pesticides and the use of suitable management practices could be implemented to lower the pesticide levels in the Karkheh River.
在本次调查中，对卡尔黑河中的一些有机氯农药（OCPs）浓度进行了监测，并计算了通过供水系统接触这些农药残留的风险评估。林丹、七氯、氯丹、狄氏剂、异狄氏剂、滴滴涕的平均浓度分别为0.135、0.123、0.077、0.081、0.076、0.01μg/L。林丹、七氯、氯丹、狄氏剂、滴滴涕和异狄氏剂对成年人的平均风险分别为1.2×10⁻⁶、1.1×10⁻⁶、7×10⁻⁷、7.6×10⁻⁷、9×10⁻⁸、7×10⁻⁷，即成年人的非致癌风险从高到低依次为狄氏剂＞氯丹＞七氯＞异狄氏剂＞滴滴涕＞林丹。所有有机氯农药的危害指数均小于1。这些结果并未引发对接触所研究农药人群健康的担忧。卡尔黑河中所有OCPs的总浓度均低于个别农药的指导标准。危害商表明，饮用苏珊加德饮用水处理厂的处理水不会产生非致癌影响。危害指数小于1，表明接触OCPs混合物的风险不显著。可以实施制定减少农药使用的政策和采用适当的管理措施，以降低卡尔黑河中的农药水平。
