在杀虫剂中,无论是品种或用量,有机磷剂都占了主要地位。其中,马拉松、杀螟松等几种对哺乳动物的毒性很低,通常认为是“安全农药”被广泛用于农业和公共卫生。但是近年来发现,某些有机磷杀虫剂中混入极微量的杂质后,会显著增加对哺乳动物的毒性。经仔细观察,发现杂质是一些与主体化合物相类似的物质,但它们的毒性却大为不同,甚至具有极高的毒性。 In pesticides, whether it is species or dosage, organophosphate agents are dominant. Among them, malathion, fenitrothion and other mammals are very low toxicity, usually considered “safe pesticides” are widely used in agriculture and public health. However, it has been found in recent years that the incorporation of trace amounts of impurities into certain organophosphorus insecticides can significantly increase the toxicity to mammals. After careful observation, it is found that impurities are similar to the host compounds, but their toxicity is very different, even with high toxicity.