Levels and enantiomeric signatures of organochlorine pesticides in Chinese forest soils: Implications for sources and environmental behavior

doi:10.1016/j.envpol.2020.114139

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 山地表生过程与生态调控重点实验室

	Levels and enantiomeric signatures of organochlorine pesticides in Chinese forest soils: Implications for sources and environmental behavior
	Zheng, Qian 4,5; Li, Jun 5; Wang, Yan 1; Lin, Tian 3; Xu, Yue 3; Zhong, Guangcai 5; Bing, Haijian 2; Luo, Chunling 4,5; Zhang, Gan 5
刊名	ENVIRONMENTAL POLLUTION
	2020-07-01
卷号	262 页码:114139
关键词	OCP Forest Chiral pesticides Enantiomeric fraction Sources
ISSN号	0269-7491
DOI	10.1016/j.envpol.2020.114139
通讯作者	Zhong, Guangcai(gczhong@gig.ac.cn)
产权排序	5
文献子类	Article
英文摘要	We investigated the levels and distributions of organochlorine pesticides (OCPs) in 159 background soil samples collected from 30 forested mountain sites across China. The sum of DDT was the most abundant OCP, with the concentrations of 0.197-207 ng/g and 0.033-122 ng/g in the O-horizon and A-horizon, respectively. High concentrations of OCPs usually occur near agricultural regions or high consumption areas. The spatial distribution was mainly influenced by the emission sources and soil total organic contents (TOC). The chiral compounds were generally nonracemic in the soils and showed preferential degradation of (-) o,p'- dichlorodiphenyltrichloroethane, (+) trans-chlordane, and (-) cis-chlordane in both the O- and A-horizons. The enantiomeric fraction (EF) distributions of chiral OCPs displayed no differences across the forest sites in the O-horizon or the A-horizon. Comparing the deviation of EFs from racemic (DEVrac = absolute value of 0.500 - EF) with environmental parameters, we found that DEVrac of cis-chlordane demonstrated a strong positive correlation with TOC (p < 0.05) and the C/N ratio (p < 0.01). This relationship suggests that these factors could affect the microbial activity and significantly impact the extent of enantioselective degradation of chiral compounds in the soils. Fresh and historical applications of DDT and historical chlordane and endosulfan uses may be prominent sources of OCP accumulation in Chinese forest soils. (C) 2020 Elsevier Ltd. All rights reserved.
资助项目	National Natural Science Foundation of China[41603086] ; National Natural Science Foundation of China[41503111] ; National Key R&D Program of China[2017YFC0212000] ; International Partnership Program of Chinese Academy of Sciences[132744KYSB20170002] ; SKLOG Open Research Fund of Guangzhou Institute of Geochemistry, Chinese Academy of Sciences[OGL-201509]
WOS关键词	PERSISTENT ORGANIC POLLUTANTS ; PEARL RIVER DELTA ; SPATIAL-DISTRIBUTION ; AGRICULTURAL SOILS ; FLAME RETARDANTS ; TIBETAN PLATEAU ; HEALTH-RISK ; CHIRAL SIGNATURES ; MOUNTAIN SOILS ; RESIDUES
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000533524300094
资助机构	National Natural Science Foundation of China ; National Key R&D Program of China ; International Partnership Program of Chinese Academy of Sciences ; SKLOG Open Research Fund of Guangzhou Institute of Geochemistry, Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/34776]
专题	成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
通讯作者	Zhong, Guangcai
作者单位	1.Dalian Univ Technol, Sch Environm Sci & Technol, MOE, Key Lab Ind Ecol & Environm Engn, Dalian 116024, Peoples R China; 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Peoples R China 3.Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550002, Peoples R China; 4.South China Agr Univ, Coll Nat Resources & Environm, Guangzhou 510642, Peoples R China; 5.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China;
推荐引用方式 GB/T 7714	Zheng, Qian,Li, Jun,Wang, Yan,et al. Levels and enantiomeric signatures of organochlorine pesticides in Chinese forest soils: Implications for sources and environmental behavior[J]. ENVIRONMENTAL POLLUTION,2020,262:114139.
APA	Zheng, Qian.,Li, Jun.,Wang, Yan.,Lin, Tian.,Xu, Yue.,...&Zhang, Gan.(2020).Levels and enantiomeric signatures of organochlorine pesticides in Chinese forest soils: Implications for sources and environmental behavior.ENVIRONMENTAL POLLUTION,262,114139.
MLA	Zheng, Qian,et al."Levels and enantiomeric signatures of organochlorine pesticides in Chinese forest soils: Implications for sources and environmental behavior".ENVIRONMENTAL POLLUTION 262(2020):114139.