Polychlorinated naphthalenes and co-planar PCBs in arctic air.
Concentrations of polychlorinated naphthalenes (PCNs) are reported for the first time in arctic air. The data represent combined air samples from the Barents Sea (n = 2), eastern Arctic Ocean (n = 10), Norwegian Sea (n = 2), and two land-based monitoring stations at Alert, Canada (n = 5), and Dunai...
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1998
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Online Access: | https://eprints.lancs.ac.uk/id/eprint/21824/ https://doi.org/10.1021/es9803106 |
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ftulancaster:oai:eprints.lancs.ac.uk:21824 2023-08-27T04:06:37+02:00 Polychlorinated naphthalenes and co-planar PCBs in arctic air. Harner, Tom Kylin, Henrik Bidleman, Terry F. Halsall, Crispin J. Strachan, William M. Barrie, Leonard Fellin, Phil 1998-11-01 https://eprints.lancs.ac.uk/id/eprint/21824/ https://doi.org/10.1021/es9803106 unknown Harner, Tom and Kylin, Henrik and Bidleman, Terry F. and Halsall, Crispin J. and Strachan, William M. and Barrie, Leonard and Fellin, Phil (1998) Polychlorinated naphthalenes and co-planar PCBs in arctic air. Environmental Science and Technology, 32 (21). pp. 3257-3265. ISSN 0013-936X Journal Article PeerReviewed 1998 ftulancaster https://doi.org/10.1021/es9803106 2023-08-03T22:18:09Z Concentrations of polychlorinated naphthalenes (PCNs) are reported for the first time in arctic air. The data represent combined air samples from the Barents Sea (n = 2), eastern Arctic Ocean (n = 10), Norwegian Sea (n = 2), and two land-based monitoring stations at Alert, Canada (n = 5), and Dunai Island in eastern Siberia, Russia (n = 3). Values for ∑PCN (pg m-3) were 6−49 for shipboard samples and 0.3−8 for land-based stations and were dominated by the 3-Cl and 4-Cl homologues, which accounted for 90−95% of the total mass. Average values for ∑PCB (pg m-3) for the shipboard samples were 126, 24, and 75 for the Barents Sea, eastern Arctic, and Norwegian Sea, respectively. Three-dimensional 5-day air parcel back-trajectories arriving at the ship at 850 and 925 hPa suggested that elevated PCB and PCN concentrations for shipboard samples originated in Europe. Concentrations (fg m-3) of coplanar PCBs in artic air were 3−40 (PCB 77) and 0.3−8 (PCB 126)about an order of magnitude lower than in urban air. Higher concentrations of PCB 77 and PCB 126, 347 and 5.0 (fg m-3), respectively, were found in the Barents Sea for two samples with elevated ∑PCBs. The proportion of coplanar PCBs to ∑PCBs was within the range of values reported for Aroclor and Clophen mixtures. The 2,3,7,8-TCDD toxicity of the air samples was assessed in terms of the TEQ (dioxin toxic equivalents) contribution of mono-ortho PCBs (congeners 105, 114, 118, 156), non-ortho (coplanar) PCBs (congeners 77 and 126), and dioxin-like PCNs for which toxic equivalent factors have been determined. The results show a 13−67% TEQ contribution of PCNs in arctic air, and it is concluded that further investigation of this compound class is merited. Article in Journal/Newspaper Arctic Arctic Arctic Ocean Barents Sea Norwegian Sea Siberia Lancaster University: Lancaster Eprints Arctic Arctic Ocean Barents Sea Canada Norwegian Sea Environmental Science & Technology 32 21 3257 3265 |
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Open Polar |
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Lancaster University: Lancaster Eprints |
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ftulancaster |
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description |
Concentrations of polychlorinated naphthalenes (PCNs) are reported for the first time in arctic air. The data represent combined air samples from the Barents Sea (n = 2), eastern Arctic Ocean (n = 10), Norwegian Sea (n = 2), and two land-based monitoring stations at Alert, Canada (n = 5), and Dunai Island in eastern Siberia, Russia (n = 3). Values for ∑PCN (pg m-3) were 6−49 for shipboard samples and 0.3−8 for land-based stations and were dominated by the 3-Cl and 4-Cl homologues, which accounted for 90−95% of the total mass. Average values for ∑PCB (pg m-3) for the shipboard samples were 126, 24, and 75 for the Barents Sea, eastern Arctic, and Norwegian Sea, respectively. Three-dimensional 5-day air parcel back-trajectories arriving at the ship at 850 and 925 hPa suggested that elevated PCB and PCN concentrations for shipboard samples originated in Europe. Concentrations (fg m-3) of coplanar PCBs in artic air were 3−40 (PCB 77) and 0.3−8 (PCB 126)about an order of magnitude lower than in urban air. Higher concentrations of PCB 77 and PCB 126, 347 and 5.0 (fg m-3), respectively, were found in the Barents Sea for two samples with elevated ∑PCBs. The proportion of coplanar PCBs to ∑PCBs was within the range of values reported for Aroclor and Clophen mixtures. The 2,3,7,8-TCDD toxicity of the air samples was assessed in terms of the TEQ (dioxin toxic equivalents) contribution of mono-ortho PCBs (congeners 105, 114, 118, 156), non-ortho (coplanar) PCBs (congeners 77 and 126), and dioxin-like PCNs for which toxic equivalent factors have been determined. The results show a 13−67% TEQ contribution of PCNs in arctic air, and it is concluded that further investigation of this compound class is merited. |
format |
Article in Journal/Newspaper |
author |
Harner, Tom Kylin, Henrik Bidleman, Terry F. Halsall, Crispin J. Strachan, William M. Barrie, Leonard Fellin, Phil |
spellingShingle |
Harner, Tom Kylin, Henrik Bidleman, Terry F. Halsall, Crispin J. Strachan, William M. Barrie, Leonard Fellin, Phil Polychlorinated naphthalenes and co-planar PCBs in arctic air. |
author_facet |
Harner, Tom Kylin, Henrik Bidleman, Terry F. Halsall, Crispin J. Strachan, William M. Barrie, Leonard Fellin, Phil |
author_sort |
Harner, Tom |
title |
Polychlorinated naphthalenes and co-planar PCBs in arctic air. |
title_short |
Polychlorinated naphthalenes and co-planar PCBs in arctic air. |
title_full |
Polychlorinated naphthalenes and co-planar PCBs in arctic air. |
title_fullStr |
Polychlorinated naphthalenes and co-planar PCBs in arctic air. |
title_full_unstemmed |
Polychlorinated naphthalenes and co-planar PCBs in arctic air. |
title_sort |
polychlorinated naphthalenes and co-planar pcbs in arctic air. |
publishDate |
1998 |
url |
https://eprints.lancs.ac.uk/id/eprint/21824/ https://doi.org/10.1021/es9803106 |
geographic |
Arctic Arctic Ocean Barents Sea Canada Norwegian Sea |
geographic_facet |
Arctic Arctic Ocean Barents Sea Canada Norwegian Sea |
genre |
Arctic Arctic Arctic Ocean Barents Sea Norwegian Sea Siberia |
genre_facet |
Arctic Arctic Arctic Ocean Barents Sea Norwegian Sea Siberia |
op_relation |
Harner, Tom and Kylin, Henrik and Bidleman, Terry F. and Halsall, Crispin J. and Strachan, William M. and Barrie, Leonard and Fellin, Phil (1998) Polychlorinated naphthalenes and co-planar PCBs in arctic air. Environmental Science and Technology, 32 (21). pp. 3257-3265. ISSN 0013-936X |
op_doi |
https://doi.org/10.1021/es9803106 |
container_title |
Environmental Science & Technology |
container_volume |
32 |
container_issue |
21 |
container_start_page |
3257 |
op_container_end_page |
3265 |
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1775347480364318720 |