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我区七十年代,有机氯农药的使用量逐年增大,八十年代虽明显下降,但仍在使用。一九八二年用量约为四百吨(据生资公司农药统计资料)。由于多年使用这种农药,不仅农作物和农田中有机氯农药的残流量增多,同时也大面积的污染了地面水源,给人们健康带来了潜在性的威胁。为了解宁夏地面水中有机氯农药的污染水平,探讨水源防护措施,为制汀“饮水卫生标准”提供参考数据,我们于1982-1983年对自治区部分地面水中的“666”和“DDT”农药残留量进行了一次调查,现将调查结果报告如下。
Seventies in our area, the use of organochlorine pesticides increased year by year, although the significant decline in the eighties, but still in use. The amount used in 1982 was about 400 tons (according to the statistics of the pesticide companies of the funded companies). Due to years of use of such pesticides, not only does the residual flow of organochlorine pesticides in agricultural crops and farmland increase, but also large-scale pollution of surface water sources poses a potential threat to human health. In order to understand the pollution level of organochlorine pesticides in surface water of Ningxia and the protective measures of water sources, and to provide reference data for the standard of drinking water hygiene, we studied the “666” and “DDT” pesticide residues in some surface water of Autonomous Region from 1982 to 1983 Volume conducted a survey, the survey results are reported below.