Levels and enantiomeric signatures of organochlorine pesticides in Chinese forest soils: Implications for sources and environmental behavior
文献类型：期刊论文
| 作者 | Zheng, Qian3,4; Li, Jun4; Wang, Yan1; Lin, Tian5; Xu, Yue5; Zhong, Guangcai4; Bing, Haijian2 ; Luo, Chunling3,4; Zhang, Gan4
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| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 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 |
| 产权排序 | 5 |
| 通讯作者 | Zhong, Guangcai(gczhong@gig.ac.cn) |
| 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. |
| 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 |
| 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研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000533524300094 |
| 出版者 | ELSEVIER SCI LTD |
| 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 |
| 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.South China Agr Univ, Coll Nat Resources & Environm, Guangzhou 510642, Peoples R China; 4.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China; 5.Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550002, 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. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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