School of Mathematical and Natural Sciences, Department of Zoology, University of Venda, Private Bag X5050, Thohoyandou, Limpopo Province, 0950, South Africa.
Department of Zoology, University of Johannesburg, PO Box 524, Auckland Park, Johannesburg, 2006, South Africa.
Environ Sci Pollut Res Int. 2020 Sep;27(26):33393-33398. doi: 10.1007/s11356-020-09930-7. Epub 2020 Jul 3.
Many of South Africa's freshwater impoundments are compromised by pesticide pollution, and the Roodeplaat Dam, near Pretoria, is no exception. This paper is, to the best of our knowledge, the first report of the herbicides Dacthal, metribuzin, simazine, tebuthiuron, terbuthylazine, and the fungicides azoxystrobin, carbendazim, epoxiconazole, metalaxyl (Ridomil), propiconazole, pyrimethanil and thiabendazole in a South African freshwater impoundment. This short note reports on the screening results of water and muscle tissue samples against a comprehensive library of pesticides, herbicides and fungicides in the polluted Roodeplaat Dam. Muscle samples of Oreochromis mossambicus screened positive for p,p'-DDE and p,p'-DDD and for DCPA (chlorthal-methyl). The muscle tissue of Clarias gariepinus screened positive for p,p'-DDE and p,p'-DDD, chlorpyrifos, trans-chlordane, DCPA and terbuthylazine. The presence of these pesticides, herbicides and fungicides in this impoundment is of great concern as there is substantial evidence of adverse health effects in fish exposed to these chemicals.
南非的许多淡水水库都受到农药污染的影响，比勒陀利亚附近的罗德里德普特大坝也不例外。据我们所知，这是第一份报告，报告了南非淡水水库中存在的除草剂敌草隆、甲草嗪、西玛津、特丁津、特丁噻草隆和杀菌剂肟菌酯、多菌灵、戊唑醇、代森锰锌（锐收）、丙环唑、吡虫啉和噻菌灵。本短评报告了对受污染的罗德里德普特大坝中的综合农药、除草剂和杀菌剂文库进行水和肌肉组织样本筛选的结果。奥罗非鱼（Oreochromis mossambicus）的肌肉样本对 p,p'-DDE 和 p,p'-DDD 以及 DCPA（氯丹）呈阳性。鲶鱼（Clarias gariepinus）的肌肉组织对 p,p'-DDE 和 p,p'-DDD、毒死蜱、顺式氯丹、DCPA 和特丁噻草隆呈阳性。这些水库中存在这些农药、除草剂和杀菌剂令人非常担忧，因为有大量证据表明鱼类暴露于这些化学物质会产生不良健康影响。
