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世界上常用的化学农药有五百多种,大量生产的有一百多种。有机氯农药是使用较多的一种,常用的有六六六、DDT及新合成的氯杀芬、氯丹、五氯酚等。多年来由于不合理的大量使用,现已成为环境、食品污染的主要物质之一。在食品中有机氯农药的残留巳成为对人类健康的潜在威胁。农药进入人体的途径,经大气和饮水的仅占10％左右,有约90％是通过食物进入的。所以应当引起防疫部门和人们的重视。一、有机氯农药在食品中的残留有机氯农药的性质稳定,在环境中不易分解,不溶或难溶于水,易溶于脂肪和有机溶剂,对脂肪和脂质类有高度的亲和力。在土壤、水和生物体内残留时间较长,施用农药时,约有10％的农药粘附在农作物上,而90％左右的农药散布在周围环境中。或降落
There are more than 500 kinds of chemical pesticides commonly used in the world and over 100 kinds of mass-produced ones. Organochlorine pesticides are more commonly used one, six six six, DDT and newly synthesized chlorine kill Fen, chlordane, pentachlorophenol and so on. Over the years due to unreasonable mass use, has become the environment, one of the main food contamination. Residues of organochlorine pesticides in food have become potential threats to human health. Pesticides into the human body through the atmosphere and drinking water accounted for only about 10%, about 90% through the food. So it should cause the epidemic prevention departments and people’s attention. First, the organochlorine pesticide residues in food Organochlorine pesticides are stable in nature, not easily decomposed in the environment, insoluble or insoluble in water, soluble in fats and organic solvents, and have a high affinity for fats and lipids. In the soil, water and organisms remain in the body longer, the application of pesticides, about 10% of the pesticides adhere to the crops, and about 90% of the pesticide dispersed in the surrounding environment. Or landing