吉林省中北部农田土壤有机氯农药的残留特征

吉林大学学报(理学版)

吉林省中北部农田土壤有机氯农药的残留特征

刘宝林^1,2, 李明¹, 董炜华², 花修艺¹, 董德明¹, 王彬彬²

1. 吉林大学环境与资源学院, 长春 130012; 2. 长春师范大学化学学院, 长春 130032

收稿日期:2013-01-15 出版日期:2013-11-26 发布日期:2013-11-21
通讯作者: 董炜华 E-mail:dongwh78@126.com

Organochlorine Pesticides (OCPs) Residues in Farmland Soilsin the North and Centre of Jilin Province

LIU Baolin^1,2, LI Ming^1, DONG Weihua^2, HUA Xiuyi^1, DONG Deming¹, WANG Binbin²

1. College of Environment and Resources, Jilin University, Changchun 130012, China;2. Faculty of Chemistry, Changchun Normal University, Changchun 130032, China

Received:2013-01-15 Online:2013-11-26 Published:2013-11-21
Contact: DONG Weihua E-mail:dongwh78@126.com

摘要/Abstract

摘要：

通过对吉林省长春、德惠、扶余、公主岭和永吉区域内典型农田土壤进行网格法布点采样, 分析土壤中有机氯农药的残留及在农田土壤中的分布状况, 并探讨有机氯农药残留物的组成及其分布和来源. 结果表明: 研究区域内六六六类（HCHs）和滴滴涕类（DDTs）农药残留检出率较高, 总有机氯农药（OCPs）的残留范围为1.45~83.88 ng/g, HCHs的总质量比为1.17～27.83 ng/g, DDTs农药的总质量比为1.45～81.75 ng/g; OCPs总体分布为长春>公主岭>永吉>德惠>扶余. OCPs的总量与总有机碳（TOC）呈显著的正相关关系; 长春、德惠、公主岭和永吉土壤中α-HCH/γ-HCH的平均值为0.37, 即大部分采样点可能有大量林丹（γ-HCH）输入; 除公主岭外, 各采样点的P,P′DDT/（P,P′-DDD+P,P′-DDE）平均值都小于1, 即土壤中的DDTs类物质主要来自历史残留物, 公主岭部分点位可能受到工业DDTs的影响; 长春区域污染明显高于其他区域; 六六六类以γ-HCH为主要污染物, 滴滴涕类以P,P′-DDT为主要污染物.

关键词: 吉林省土壤, 有机氯农药, 残留量, 分布状况

Abstract:

Typical farmland soil samples of Changchun, Dehui, Fuyu, Gongzhuling, Yongji were collected with grid method. The residues of organochlorine pesticides(OCPs) in soil and the distribution were measured and the composition and sources of organochlorine pesticide residues were discussed. The results show that HCHs and DDTs of the study areas had higher detection rate. The total OCPs content of the residues was in a range of 1.45~83.88 ng/g. HCHs and DDTs were found widely in all the samples with a range of 1.17~27.83 ng/g and 1.45~81.75 ng/g respectively. The residue levels in different lands were in the order as follows: Changchun>Gongzhuling>Yongji>Dehui>Fuyu. A significant positive correlation existed between the total amount of OCPs and that of TOC was showed. The source analysis shows that the average value of α-HCH/γ-HCH of survey region was 0.37, indicating that there was a large number of lindane imported recently. The DDTs pesticide composition displays that P,P′-DDT/(P,P′-DDD+P,P′DDE) values of each sampling site except Gongzhuling were less than 1, indicating the sources of DDTs were residues historically. Gongzhuling was likely contaminated by industrial DDTs. From the results of factor analysis and cluster analysis, we conclude that the content of organochlorine pesticides causing Changchun area pollution is significantly higher than those of other regions. From the analysis of pollutant factor, γ-HCH and P,P′-DDT are the major pollutants.

Key words: soil of Jilin Province, organochlorine pesticides, residue, distribution character

中图分类号:

刘宝林, 李明, 董炜华, 花修艺, 董德明, 王彬彬. 吉林省中北部农田土壤有机氯农药的残留特征[J]. 吉林大学学报(理学版), 2013, 51(06): 1187-1192.

LIU Baolin, LI Ming, DONG Weihua, HUA Xiuyi, DONG Deming, WANG Binbin. Organochlorine Pesticides (OCPs) Residues in Farmland Soilsin the North and Centre of Jilin Province[J]. Journal of Jilin University Science Edition, 2013, 51(06): 1187-1192.