Net volatilization of PAHs from the North Pacific to the Arctic Ocean observed by passive sampling

The North Pacific-Arctic Oceans are important compartments for semi-volatile organic compounds’ (SVOCs) global marine inventory, but whether they act as a “source" or "sink†remains controversial. To study the air-sea exchange and fate of SVOCs during their poleward long-range transpo...

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Published in:Environmental Pollution
Main Authors: Zheng, Haowen, Cai, Minggang, Zhao, Wenlu, Khairy, Mohammed, Chen, Mian, Deng, Hengxiang, Lohmann, Rainer
Format: Text
Language:unknown
Published: DigitalCommons@URI 2021
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Online Access:https://digitalcommons.uri.edu/gsofacpubs/765
https://doi.org/10.1016/j.envpol.2021.116728
https://digitalcommons.uri.edu/context/gsofacpubs/article/1731/viewcontent/auto_convert.pdf
https://digitalcommons.uri.edu/context/gsofacpubs/article/1731/filename/0/type/additional/viewcontent/Revised_Supplemental_files_EP_7_Feb_2021.docx
https://digitalcommons.uri.edu/context/gsofacpubs/article/1731/filename/1/type/additional/viewcontent/Revised_Highlights_files.docx
https://digitalcommons.uri.edu/context/gsofacpubs/article/1731/filename/2/type/additional/viewcontent/Revised_Graphical_abstract.docx
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spelling ftunivrhodeislan:oai:digitalcommons.uri.edu:gsofacpubs-1731 2024-09-15T17:53:56+00:00 Net volatilization of PAHs from the North Pacific to the Arctic Ocean observed by passive sampling Zheng, Haowen Cai, Minggang Zhao, Wenlu Khairy, Mohammed Chen, Mian Deng, Hengxiang Lohmann, Rainer 2021-02-11T08:00:00Z application/pdf https://digitalcommons.uri.edu/gsofacpubs/765 https://doi.org/10.1016/j.envpol.2021.116728 https://digitalcommons.uri.edu/context/gsofacpubs/article/1731/viewcontent/auto_convert.pdf https://digitalcommons.uri.edu/context/gsofacpubs/article/1731/filename/0/type/additional/viewcontent/Revised_Supplemental_files_EP_7_Feb_2021.docx https://digitalcommons.uri.edu/context/gsofacpubs/article/1731/filename/1/type/additional/viewcontent/Revised_Highlights_files.docx https://digitalcommons.uri.edu/context/gsofacpubs/article/1731/filename/2/type/additional/viewcontent/Revised_Graphical_abstract.docx unknown DigitalCommons@URI https://digitalcommons.uri.edu/gsofacpubs/765 doi:10.1016/j.envpol.2021.116728 https://digitalcommons.uri.edu/context/gsofacpubs/article/1731/viewcontent/auto_convert.pdf https://digitalcommons.uri.edu/context/gsofacpubs/article/1731/filename/0/type/additional/viewcontent/Revised_Supplemental_files_EP_7_Feb_2021.docx https://digitalcommons.uri.edu/context/gsofacpubs/article/1731/filename/1/type/additional/viewcontent/Revised_Highlights_files.docx https://digitalcommons.uri.edu/context/gsofacpubs/article/1731/filename/2/type/additional/viewcontent/Revised_Graphical_abstract.docx Graduate School of Oceanography Faculty Publications text 2021 ftunivrhodeislan https://doi.org/10.1016/j.envpol.2021.116728 2024-08-21T00:09:33Z The North Pacific-Arctic Oceans are important compartments for semi-volatile organic compounds’ (SVOCs) global marine inventory, but whether they act as a “source" or "sink†remains controversial. To study the air-sea exchange and fate of SVOCs during their poleward long-range transport, low-altitude atmosphere and surface seawater were measured for polycyclic aromatic hydrocarbons (PAHs) by passive sampling from July to September in 2014. Gaseous PAH concentrations (0.67–13 ng m−3) were dominated by phenanthrene (Phe) and fluorene (Flu), which displayed an inverse correlation with latitude, as well as a significant linear relationship with partial pressure and inverse temperature. Concentrations of PAHs in seawater (1.8–16 ng L−1) showed regional characteristics, with higher levels near the East Asia and lower values in the Bering Strait. The potential impact from the East Asian monsoon was suggested for gaseous PAHs, which – similar to PAHs in surface seawater - were derived from combustion sources. In addition, the data implied net volatilization of PAHs from seawater into the air along the entire cruise; fluxes displayed a similar pattern to regional and monthly distribution of PAHs in seawater. Our results further emphasized that air-sea exchange is an important process for PAHs in the open marine environments. Text Arctic Ocean Bering Strait Pacific Arctic University of Rhode Island: DigitalCommons@URI Environmental Pollution 276 116728
institution Open Polar
collection University of Rhode Island: DigitalCommons@URI
op_collection_id ftunivrhodeislan
language unknown
description The North Pacific-Arctic Oceans are important compartments for semi-volatile organic compounds’ (SVOCs) global marine inventory, but whether they act as a “source" or "sink†remains controversial. To study the air-sea exchange and fate of SVOCs during their poleward long-range transport, low-altitude atmosphere and surface seawater were measured for polycyclic aromatic hydrocarbons (PAHs) by passive sampling from July to September in 2014. Gaseous PAH concentrations (0.67–13 ng m−3) were dominated by phenanthrene (Phe) and fluorene (Flu), which displayed an inverse correlation with latitude, as well as a significant linear relationship with partial pressure and inverse temperature. Concentrations of PAHs in seawater (1.8–16 ng L−1) showed regional characteristics, with higher levels near the East Asia and lower values in the Bering Strait. The potential impact from the East Asian monsoon was suggested for gaseous PAHs, which – similar to PAHs in surface seawater - were derived from combustion sources. In addition, the data implied net volatilization of PAHs from seawater into the air along the entire cruise; fluxes displayed a similar pattern to regional and monthly distribution of PAHs in seawater. Our results further emphasized that air-sea exchange is an important process for PAHs in the open marine environments.
format Text
author Zheng, Haowen
Cai, Minggang
Zhao, Wenlu
Khairy, Mohammed
Chen, Mian
Deng, Hengxiang
Lohmann, Rainer
spellingShingle Zheng, Haowen
Cai, Minggang
Zhao, Wenlu
Khairy, Mohammed
Chen, Mian
Deng, Hengxiang
Lohmann, Rainer
Net volatilization of PAHs from the North Pacific to the Arctic Ocean observed by passive sampling
author_facet Zheng, Haowen
Cai, Minggang
Zhao, Wenlu
Khairy, Mohammed
Chen, Mian
Deng, Hengxiang
Lohmann, Rainer
author_sort Zheng, Haowen
title Net volatilization of PAHs from the North Pacific to the Arctic Ocean observed by passive sampling
title_short Net volatilization of PAHs from the North Pacific to the Arctic Ocean observed by passive sampling
title_full Net volatilization of PAHs from the North Pacific to the Arctic Ocean observed by passive sampling
title_fullStr Net volatilization of PAHs from the North Pacific to the Arctic Ocean observed by passive sampling
title_full_unstemmed Net volatilization of PAHs from the North Pacific to the Arctic Ocean observed by passive sampling
title_sort net volatilization of pahs from the north pacific to the arctic ocean observed by passive sampling
publisher DigitalCommons@URI
publishDate 2021
url https://digitalcommons.uri.edu/gsofacpubs/765
https://doi.org/10.1016/j.envpol.2021.116728
https://digitalcommons.uri.edu/context/gsofacpubs/article/1731/viewcontent/auto_convert.pdf
https://digitalcommons.uri.edu/context/gsofacpubs/article/1731/filename/0/type/additional/viewcontent/Revised_Supplemental_files_EP_7_Feb_2021.docx
https://digitalcommons.uri.edu/context/gsofacpubs/article/1731/filename/1/type/additional/viewcontent/Revised_Highlights_files.docx
https://digitalcommons.uri.edu/context/gsofacpubs/article/1731/filename/2/type/additional/viewcontent/Revised_Graphical_abstract.docx
genre Arctic Ocean
Bering Strait
Pacific Arctic
genre_facet Arctic Ocean
Bering Strait
Pacific Arctic
op_source Graduate School of Oceanography Faculty Publications
op_relation https://digitalcommons.uri.edu/gsofacpubs/765
doi:10.1016/j.envpol.2021.116728
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https://digitalcommons.uri.edu/context/gsofacpubs/article/1731/filename/0/type/additional/viewcontent/Revised_Supplemental_files_EP_7_Feb_2021.docx
https://digitalcommons.uri.edu/context/gsofacpubs/article/1731/filename/1/type/additional/viewcontent/Revised_Highlights_files.docx
https://digitalcommons.uri.edu/context/gsofacpubs/article/1731/filename/2/type/additional/viewcontent/Revised_Graphical_abstract.docx
op_doi https://doi.org/10.1016/j.envpol.2021.116728
container_title Environmental Pollution
container_volume 276
container_start_page 116728
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