农业环境科学学报2017，Vol.36Issue(3)：539-546,8.DOI:10.11654/jaes.2016-1218
内蒙古农牧业区土壤中有机氯农药的分布特征及健康风险评估
Distribution characteristics and health risk assessment of organochlorine pesticides in surface soil from the ma-jor farming and animal husbandry districts in Inner Mongolia
摘要
Abstract
216 surface soil samples were collected from the major farming and animal husbandry districts in Inner Mongolia. 21 kinds of organochlorine pesticides(OCPs)in soil were analyzed by a Ni electron capture detector(GC-ECD)to investigate the residues level, distri-bution characteristics, sources and potential health risks of these compounds in the study region. The results showed that OCPs residues in both farming and animal husbandry district soil ranged 0.64~102 ng·g-1(mean 26.3 ng·g-1)and 0.18~23.8 ng·g-1(mean 5.81 ng·g-1), re-spectively. The detection ratio of HCHs and DDTs's isomers ranged between 89.1%and 100%, which were considered to be the dominant OCPs in the research region, and their concentrations accorded with the first class levels of the environmental quality standard for soils(GB 15618—1995). Compared with other regions, the OCPs pollution in this study region stayed at a lower level. In addition, source analysis in-dicated that lindane, a small number of industrial HCHs and dicofol might be used in the farming district. However, for the animal hus-bandry district, the early residues and atmospheric deposition of OCPs were the main cause of soil pollution. The higher residue level of OCPs, HCHs and DDTs in different types of lands occurred in vegetable land, watermelon patch and soybean field. The health risk assess-ment suggested that OCPs residues in the survey areas do not pose a health threat to the local residents.关键词
内蒙古农牧业区/土壤/有机氯农药/分布特征/健康风险评估Key words
Inner Mongolia farming and animal husbandry districts/soil/organochlorine pesticides(OCPs)/distribution characteristics/health risk assessment分类
资源环境引用本文复制引用
孟佩俊,李淑荣,和彦苓,张艾华,张丽萍,靳敏,梁青青,张凌燕..内蒙古农牧业区土壤中有机氯农药的分布特征及健康风险评估[J].农业环境科学学报,2017,36(3):539-546,8.基金项目
内蒙古自治区自然科学基金项目(2014MS0890) （2014MS0890）
内蒙古自治区高等学校科学研究项目(NJZY14261) The Natural Science Foundation of Inner Mongolia Autonomous Region China(2014MS0890) （NJZY14261）
The Scientific Research Foundation of the Higher Education Institutions of Inner Mongolia Autonomous Region, China(NJZY14261) （NJZY14261）
