Distribution of organochlorine pesticides in seawater of the Bering and Chukchi Sea
Organochlorine pesticides (OCPs) in the seawater collected in the Bering and Chukchi Seas during the First Chinese Arctic Research Expedition were confirmed by gas chromatography-mass spectrometry (GC-MS) and analyzed by capillary gas chromatography with micro-electron capture detector (GC-RECD). Th...
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ftchacadscircees:oai:/ir.rcees.ac.cn:311016/23875 2023-06-11T04:09:32+02:00 Distribution of organochlorine pesticides in seawater of the Bering and Chukchi Sea Yao, ZW Jiang, GB Xu, HZ 2002 http://ir.rcees.ac.cn/handle/311016/23875 unknown ENVIRONMENTAL POLLUTION http://ir.rcees.ac.cn/handle/311016/23875 cn.org.cspace.api.content.CopyrightPolicy@17095d2 Distribution Organochlorine Pesticides Seawater Bering Sea Chukchi Sea Environmental Sciences & Ecology 期刊论文 2002 ftchacadscircees 2023-05-28T12:08:58Z Organochlorine pesticides (OCPs) in the seawater collected in the Bering and Chukchi Seas during the First Chinese Arctic Research Expedition were confirmed by gas chromatography-mass spectrometry (GC-MS) and analyzed by capillary gas chromatography with micro-electron capture detector (GC-RECD). The average of hexachlorocyclohexanes (HCHs; sum of isomers alpha-, beta-, gamma-, delta-) was nearly equal in the Bering Sea (mean concentration 412.7 pg/l) and in the Chukchi Sea (mean concentration 445.8 pg/l), which showed no obvious latitudinal difference of these two regions. Compared with previously reported studies, concentrations of OCPs in these regions were much lower than the levels in the last decades. The ratio of alpha:gamma HCH was 5.0 and 3.4 for the Bering and Chukchi sea, respectively, which indicated the different pesticide composition in these two regions. Many other OCPs with different residue patterns were also found for the first time in the investigation regions. Heptachlor epoxide (in the Bering Sea) and heptachlor (in the Chukchi Sea) were main OCPs contaminants besides HCHs. (C) 2001 Elsevier Science Ltd. All rights reserved. Report Arctic Bering Sea Chukchi Chukchi Sea Research Center for Eco-Environmental Sciences: RCEES OpenIR (Chinese Academy of Sciences) Arctic Bering Sea Chukchi Sea |
institution |
Open Polar |
collection |
Research Center for Eco-Environmental Sciences: RCEES OpenIR (Chinese Academy of Sciences) |
op_collection_id |
ftchacadscircees |
language |
unknown |
topic |
Distribution Organochlorine Pesticides Seawater Bering Sea Chukchi Sea Environmental Sciences & Ecology |
spellingShingle |
Distribution Organochlorine Pesticides Seawater Bering Sea Chukchi Sea Environmental Sciences & Ecology Yao, ZW Jiang, GB Xu, HZ Distribution of organochlorine pesticides in seawater of the Bering and Chukchi Sea |
topic_facet |
Distribution Organochlorine Pesticides Seawater Bering Sea Chukchi Sea Environmental Sciences & Ecology |
description |
Organochlorine pesticides (OCPs) in the seawater collected in the Bering and Chukchi Seas during the First Chinese Arctic Research Expedition were confirmed by gas chromatography-mass spectrometry (GC-MS) and analyzed by capillary gas chromatography with micro-electron capture detector (GC-RECD). The average of hexachlorocyclohexanes (HCHs; sum of isomers alpha-, beta-, gamma-, delta-) was nearly equal in the Bering Sea (mean concentration 412.7 pg/l) and in the Chukchi Sea (mean concentration 445.8 pg/l), which showed no obvious latitudinal difference of these two regions. Compared with previously reported studies, concentrations of OCPs in these regions were much lower than the levels in the last decades. The ratio of alpha:gamma HCH was 5.0 and 3.4 for the Bering and Chukchi sea, respectively, which indicated the different pesticide composition in these two regions. Many other OCPs with different residue patterns were also found for the first time in the investigation regions. Heptachlor epoxide (in the Bering Sea) and heptachlor (in the Chukchi Sea) were main OCPs contaminants besides HCHs. (C) 2001 Elsevier Science Ltd. All rights reserved. |
format |
Report |
author |
Yao, ZW Jiang, GB Xu, HZ |
author_facet |
Yao, ZW Jiang, GB Xu, HZ |
author_sort |
Yao, ZW |
title |
Distribution of organochlorine pesticides in seawater of the Bering and Chukchi Sea |
title_short |
Distribution of organochlorine pesticides in seawater of the Bering and Chukchi Sea |
title_full |
Distribution of organochlorine pesticides in seawater of the Bering and Chukchi Sea |
title_fullStr |
Distribution of organochlorine pesticides in seawater of the Bering and Chukchi Sea |
title_full_unstemmed |
Distribution of organochlorine pesticides in seawater of the Bering and Chukchi Sea |
title_sort |
distribution of organochlorine pesticides in seawater of the bering and chukchi sea |
publishDate |
2002 |
url |
http://ir.rcees.ac.cn/handle/311016/23875 |
geographic |
Arctic Bering Sea Chukchi Sea |
geographic_facet |
Arctic Bering Sea Chukchi Sea |
genre |
Arctic Bering Sea Chukchi Chukchi Sea |
genre_facet |
Arctic Bering Sea Chukchi Chukchi Sea |
op_relation |
ENVIRONMENTAL POLLUTION http://ir.rcees.ac.cn/handle/311016/23875 |
op_rights |
cn.org.cspace.api.content.CopyrightPolicy@17095d2 |
_version_ |
1768383467574263808 |