Air monitoring of polychlorinated biphenyls, polybrominated diphenyl ethers and organochlorine pesticides in West Antarctica during 2011-2017: Concentrations, temporal trends and potential sources
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. Relativ...
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ftchacadscircees:oai:ir.rcees.ac.cn:311016/42896 2023-05-15T13:51:52+02:00 Air monitoring of polychlorinated biphenyls, polybrominated diphenyl ethers and organochlorine pesticides in West Antarctica during 2011-2017: Concentrations, temporal trends and potential sources Hao, Yanfen Li, Yingming Han, Xu Wang, Thanh Yang, Ruiqiang Wang, Pu Xiao, Ke Li, Wenjuan Lu, Huili Fu, Jianjie Wang, Yawei Shi, Jianbo Zhang, Qinghua Jiang, Guibin 2019-06 http://ir.rcees.ac.cn/handle/311016/42896 unknown ENVIRONMENTAL POLLUTION http://ir.rcees.ac.cn/handle/311016/42896 cn.org.cspace.api.content.CopyrightPolicy@47144e39 Antarctica Atmosphere Passive air sampling Temporal trends POPs 期刊论文 2019 ftchacadscircees 2020-12-22T10:26:32Z 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 12PBDEs: 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. (C) 2019 Elsevier Ltd. All rights reserved. Report Antarc* Antarctic Antarctica West Antarctica Research Center for Eco-Environmental Sciences: RCEES OpenIR (Chinese Academy of Sciences) Antarctic Fildes ENVELOPE(-58.817,-58.817,-62.217,-62.217) Fildes peninsula ENVELOPE(-58.948,-58.948,-62.182,-62.182) Great Wall Station ENVELOPE(-58.970,-58.970,-62.217,-62.217) The Antarctic West Antarctica |
institution |
Open Polar |
collection |
Research Center for Eco-Environmental Sciences: RCEES OpenIR (Chinese Academy of Sciences) |
op_collection_id |
ftchacadscircees |
language |
unknown |
topic |
Antarctica Atmosphere Passive air sampling Temporal trends POPs |
spellingShingle |
Antarctica Atmosphere Passive air sampling Temporal trends POPs Hao, Yanfen Li, Yingming Han, Xu Wang, Thanh Yang, Ruiqiang Wang, Pu Xiao, Ke Li, Wenjuan Lu, Huili Fu, Jianjie Wang, Yawei Shi, Jianbo Zhang, Qinghua Jiang, Guibin Air monitoring of polychlorinated biphenyls, polybrominated diphenyl ethers and organochlorine pesticides in West Antarctica during 2011-2017: Concentrations, temporal trends and potential sources |
topic_facet |
Antarctica Atmosphere Passive air sampling Temporal trends POPs |
description |
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 12PBDEs: 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. (C) 2019 Elsevier Ltd. All rights reserved. |
format |
Report |
author |
Hao, Yanfen Li, Yingming Han, Xu Wang, Thanh Yang, Ruiqiang Wang, Pu Xiao, Ke Li, Wenjuan Lu, Huili Fu, Jianjie Wang, Yawei Shi, Jianbo Zhang, Qinghua Jiang, Guibin |
author_facet |
Hao, Yanfen Li, Yingming Han, Xu Wang, Thanh Yang, Ruiqiang Wang, Pu Xiao, Ke Li, Wenjuan Lu, Huili Fu, Jianjie Wang, Yawei Shi, Jianbo Zhang, Qinghua Jiang, Guibin |
author_sort |
Hao, Yanfen |
title |
Air monitoring of polychlorinated biphenyls, polybrominated diphenyl ethers and organochlorine pesticides in West Antarctica during 2011-2017: Concentrations, temporal trends and potential sources |
title_short |
Air monitoring of polychlorinated biphenyls, polybrominated diphenyl ethers and organochlorine pesticides in West Antarctica during 2011-2017: Concentrations, temporal trends and potential sources |
title_full |
Air monitoring of polychlorinated biphenyls, polybrominated diphenyl ethers and organochlorine pesticides in West Antarctica during 2011-2017: Concentrations, temporal trends and potential sources |
title_fullStr |
Air monitoring of polychlorinated biphenyls, polybrominated diphenyl ethers and organochlorine pesticides in West Antarctica during 2011-2017: Concentrations, temporal trends and potential sources |
title_full_unstemmed |
Air monitoring of polychlorinated biphenyls, polybrominated diphenyl ethers and organochlorine pesticides in West Antarctica during 2011-2017: Concentrations, temporal trends and potential sources |
title_sort |
air monitoring of polychlorinated biphenyls, polybrominated diphenyl ethers and organochlorine pesticides in west antarctica during 2011-2017: concentrations, temporal trends and potential sources |
publishDate |
2019 |
url |
http://ir.rcees.ac.cn/handle/311016/42896 |
long_lat |
ENVELOPE(-58.817,-58.817,-62.217,-62.217) ENVELOPE(-58.948,-58.948,-62.182,-62.182) ENVELOPE(-58.970,-58.970,-62.217,-62.217) |
geographic |
Antarctic Fildes Fildes peninsula Great Wall Station The Antarctic West Antarctica |
geographic_facet |
Antarctic Fildes Fildes peninsula Great Wall Station The Antarctic West Antarctica |
genre |
Antarc* Antarctic Antarctica West Antarctica |
genre_facet |
Antarc* Antarctic Antarctica West Antarctica |
op_relation |
ENVIRONMENTAL POLLUTION http://ir.rcees.ac.cn/handle/311016/42896 |
op_rights |
cn.org.cspace.api.content.CopyrightPolicy@47144e39 |
_version_ |
1766255897197150208 |