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几年来,我省对厂矿企业和水、大气污染的研究和管理,都取得了显著成绩,但对土壤中残留的大量有机氯农药如滴滴涕、六六六的污染危害、治理等研究的还不够。1984年,我们承担省海洋办、省农科院、省果树所,内容包括滴滴涕、六六六在内的土壤污染调查任务。三年来,在我省沿海的丹东、大连、营口、盘锦、锦州等5个市的14个县区的海岸土壤和省农科院、省果树所的试验地,面积约为32000平方公里,进行了采点和化验。结果说明,滴滴涕、六六六在土壤中残留有一定规律性。一、土壤中滴滴涕、六六六的污染现状土壤中滴滴涕、六六六的污染是普遍的,有的地块残留量很高,污染严重。残留量的多少,与农药用最、土地利用方式有着密切关系,如表1。
In recent years, the province has made remarkable achievements in the research and management of factories and mines, water and air pollution. However, there are not enough studies on the pollution and treatment of the large amount of organochlorine pesticides left in the soil, such as DDT and BHC. . In 1984, we undertook the task of investigating the soil pollution of the provincial Oceanic Office, the Provincial Academy of Agricultural Sciences and the provincial fruit tree institute, including DDT and BHC. In the past three years, the coast soil of 14 counties in five cities including Dandong, Dalian, Yingkou, Panjin and Jinzhou in the coastal areas of our province, as well as experimental sites of the Provincial Academy of Agricultural Sciences and Provincial Fruit Trees, have an area of about 32,000 square kilometers Picking and testing. The results show that DDT, BHC in the soil residues have a certain regularity. First, the soil DDT, BHC pollution status Soil DDT, BHC pollution is common, and some plots of residual high, serious pollution. The amount of residue, and most pesticides, land use patterns are closely related, as shown in Table 1.