PMID- 30913437 OWN - NLM STAT- MEDLINE DCOM- 20190723 LR - 20190723 IS - 1873-6424 (Electronic) IS - 0269-7491 (Linking) VI - 249 DP - 2019 Jun TI - Air monitoring of polychlorinated biphenyls, polybrominated diphenyl ethers and organochlorine pesticides in West Antarctica during 2011-2017: Concentrations, temporal trends and potential sources. PG - 381-389 LID - S0269-7491(18)35262-X [pii] LID - 10.1016/j.envpol.2019.03.039 [doi] AB - Annual air samples were collected at various sites in the Fildes Peninsula, West Antarctica from December 2010 to January 2018 using XAD-2 resin passive air samplers to investigate concentrations, temporal trends and potential sources of persistent organic pollutants (POPs) in Antarctic air. Relatively low concentrations of polychlorinated biphenyls (PCBs) (Sigma(19)PCBs: 1.5-29.7 pg/m(3)), polybrominated diphenyl ethers (PBDEs) (Sigma(12)PBDEs: 0.2-2.9 pg/m(3)) and organochlorine pesticides (OCPs) (Sigma(13)OCPs: 101-278 pg/m(3)) were found in the atmosphere of West Antarctica. PCB-11, BDE-47 and hexachlorobenzene (HCB) were the predominant compounds in the atmosphere. The concentrations of PCBs, HCHs, DDTs and endosulfans were found to show decreasing temporal trends, whereas uniform temporal trends were observed for HCB. The atmospheric half-life values for PCBs, HCHs, DDTs and endosulfans in Antarctic air were estimated for the first time, using regressions of the natural logarithm of the concentrations versus the number of years, obtaining the values of 2.0, 2.0, 2.4 and 1.2 year, respectively. An increasing ratio of alpha-HCH/gamma-HCH indicated long residence time for alpha-HCH and possible transformation of gamma-HCH to alpha-HCH in the atmosphere. The ratios of p,p'-DDT/p,p'-DDE were mostly lower than unity in this study, which could be attributed to aged sources. It was found that long-range atmospheric transport was still considered to be the main contributing factor to the atmospheric levels of the POPs in West Antarctica whereas the contribution of human activities at the Chinese Great Wall Station was minor. The results of this study give a view on the most recent temporal trends and provide new insights regarding the occurrence of various POPs in the Antarctic atmosphere. CI - Copyright (c) 2019 Elsevier Ltd. All rights reserved. FAU - Hao, Yanfen AU - Hao Y AD - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China. FAU - Li, Yingming AU - Li Y AD - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China. Electronic address: ymli@rcees.ac.cn. FAU - Han, Xu AU - Han X AD - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China. FAU - Wang, Thanh AU - Wang T AD - MTM Research Center, Orebro University, SE-701 82, Orebro, Sweden. FAU - Yang, Ruiqiang AU - Yang R AD - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China. FAU - Wang, Pu AU - Wang P AD - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China. FAU - Xiao, Ke AU - Xiao K AD - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China. FAU - Li, Wenjuan AU - Li W AD - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China. FAU - Lu, Huili AU - Lu H AD - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China. FAU - Fu, Jianjie AU - Fu J AD - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China. FAU - Wang, Yawei AU - Wang Y AD - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China. FAU - Shi, Jianbo AU - Shi J AD - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China. FAU - Zhang, Qinghua AU - Zhang Q AD - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China. FAU - Jiang, Guibin AU - Jiang G AD - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China. LA - eng PT - Journal Article DEP - 20190314 PL - England TA - Environ Pollut JT - Environmental pollution (Barking, Essex : 1987) JID - 8804476 RN - 0 (Air Pollutants) RN - 0 (Halogenated Diphenyl Ethers) RN - 0 (Hydrocarbons, Chlorinated) RN - 0 (Pesticides) RN - 0N97R5X10X (2,2',4,4'-tetrabromodiphenyl ether) RN - 319-84-6 (alpha-hexachlorocyclohexane) RN - 4Z87H0LKUY (Hexachlorobenzene) RN - 59NEE7PCAB (Hexachlorocyclohexane) RN - DFC2HB4I0K (Polychlorinated Biphenyls) RN - OKA6A6ZD4K (Endosulfan) MH - Air Pollutants/*analysis MH - Antarctic Regions MH - Atmosphere MH - Endosulfan/analysis MH - Environmental Monitoring/*methods MH - Halogenated Diphenyl Ethers/*analysis MH - Hexachlorobenzene/analysis MH - Hexachlorocyclohexane/analysis MH - Humans MH - Hydrocarbons, Chlorinated/*analysis MH - Pesticides/*analysis MH - Polychlorinated Biphenyls/*analysis OTO - NOTNLM OT - Antarctica OT - Atmosphere OT - POPs OT - Passive air sampling OT - Temporal trends EDAT- 2019/03/27 06:00 MHDA- 2019/07/25 06:00 CRDT- 2019/03/27 06:00 PHST- 2018/11/23 00:00 [received] PHST- 2019/03/11 00:00 [revised] PHST- 2019/03/11 00:00 [accepted] PHST- 2019/03/27 06:00 [pubmed] PHST- 2019/07/25 06:00 [medline] PHST- 2019/03/27 06:00 [entrez] AID - S0269-7491(18)35262-X [pii] AID - 10.1016/j.envpol.2019.03.039 [doi] PST - ppublish SO - Environ Pollut. 2019 Jun;249:381-389. doi: 10.1016/j.envpol.2019.03.039. Epub 2019 Mar 14.