PCB and organochlorine pesticide burden in eels in the lower Thames River (UK)
Thirty-five European eels (Anguilla anguilla), caught in 2007 in the river Thames upstream and downstream of both London and the tidal limit, were analysed for PCBs and organochlorine pesticides. Most chemicals were detectable in every fish, although they have been banned or severely restricted for...
Published in: | Chemosphere |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
2015
|
Subjects: | |
Online Access: | https://eprints.lancs.ac.uk/id/eprint/70335/ https://doi.org/10.1016/j.chemosphere.2014.06.088 |
id |
ftulancaster:oai:eprints.lancs.ac.uk:70335 |
---|---|
record_format |
openpolar |
spelling |
ftulancaster:oai:eprints.lancs.ac.uk:70335 2023-08-27T04:04:01+02:00 PCB and organochlorine pesticide burden in eels in the lower Thames River (UK) Jürgens, Monika D. Chaemfa, Chakra Hughes, David Johnson, Andrew C. Jones, Kevin C. 2015-01 https://eprints.lancs.ac.uk/id/eprint/70335/ https://doi.org/10.1016/j.chemosphere.2014.06.088 unknown Jürgens, Monika D. and Chaemfa, Chakra and Hughes, David and Johnson, Andrew C. and Jones, Kevin C. (2015) PCB and organochlorine pesticide burden in eels in the lower Thames River (UK). Chemosphere, 118. pp. 103-111. ISSN 0045-6535 Journal Article PeerReviewed 2015 ftulancaster https://doi.org/10.1016/j.chemosphere.2014.06.088 2023-08-03T22:26:31Z Thirty-five European eels (Anguilla anguilla), caught in 2007 in the river Thames upstream and downstream of both London and the tidal limit, were analysed for PCBs and organochlorine pesticides. Most chemicals were detectable in every fish, although they have been banned or severely restricted for many years. In general, the tidal eels were more contaminated than upstream ones, which was related to their higher lipid contents. The ICES7 indicator PCB concentrations ranged overall from 4.2 to 124μgkg(-1) fresh weight with averages of 33 and 56μgkg(-1) for the upstream and tidal eels; 3.5-104μgkg(-1), average 26 and 48μgkg(-1) of that were ICES6 PCBs. Total DDT was on average 16μgkg(-1) (1.7-38μgkg(-1)) upstream and 18μgkg(-1) (8.6-35μgkg(-1)) downstream with about half of that provided by pp'DDE. Lindane (γ-HCH) was found at up to 2.8μgkg(-1) (averages 0.58 and 1.1μgkg(-1) upstream and downstream) and hexachlorobenzene (HCB) was on average 1.9 and 2.5μgkg(-1) in the two groups with a maximum of 6.4μgkg(-1) in each. Therefore all individuals passed the European Environmental Quality Standard (EQS) of 10μgkg(-1) for HCB. PCB contamination was fairly typical for recent UK eel data, whilst DDE and lindane concentrations were lower than most previous UK eel studies, perhaps reflecting a downward trend. Although not as highly contaminated as some eels from previous UK and European studies, the presence of so many of these chemicals, with their known health effects may represent a stress for the fish or higher predators, such as birds. Article in Journal/Newspaper Anguilla anguilla Lancaster University: Lancaster Eprints Chemosphere 118 103 111 |
institution |
Open Polar |
collection |
Lancaster University: Lancaster Eprints |
op_collection_id |
ftulancaster |
language |
unknown |
description |
Thirty-five European eels (Anguilla anguilla), caught in 2007 in the river Thames upstream and downstream of both London and the tidal limit, were analysed for PCBs and organochlorine pesticides. Most chemicals were detectable in every fish, although they have been banned or severely restricted for many years. In general, the tidal eels were more contaminated than upstream ones, which was related to their higher lipid contents. The ICES7 indicator PCB concentrations ranged overall from 4.2 to 124μgkg(-1) fresh weight with averages of 33 and 56μgkg(-1) for the upstream and tidal eels; 3.5-104μgkg(-1), average 26 and 48μgkg(-1) of that were ICES6 PCBs. Total DDT was on average 16μgkg(-1) (1.7-38μgkg(-1)) upstream and 18μgkg(-1) (8.6-35μgkg(-1)) downstream with about half of that provided by pp'DDE. Lindane (γ-HCH) was found at up to 2.8μgkg(-1) (averages 0.58 and 1.1μgkg(-1) upstream and downstream) and hexachlorobenzene (HCB) was on average 1.9 and 2.5μgkg(-1) in the two groups with a maximum of 6.4μgkg(-1) in each. Therefore all individuals passed the European Environmental Quality Standard (EQS) of 10μgkg(-1) for HCB. PCB contamination was fairly typical for recent UK eel data, whilst DDE and lindane concentrations were lower than most previous UK eel studies, perhaps reflecting a downward trend. Although not as highly contaminated as some eels from previous UK and European studies, the presence of so many of these chemicals, with their known health effects may represent a stress for the fish or higher predators, such as birds. |
format |
Article in Journal/Newspaper |
author |
Jürgens, Monika D. Chaemfa, Chakra Hughes, David Johnson, Andrew C. Jones, Kevin C. |
spellingShingle |
Jürgens, Monika D. Chaemfa, Chakra Hughes, David Johnson, Andrew C. Jones, Kevin C. PCB and organochlorine pesticide burden in eels in the lower Thames River (UK) |
author_facet |
Jürgens, Monika D. Chaemfa, Chakra Hughes, David Johnson, Andrew C. Jones, Kevin C. |
author_sort |
Jürgens, Monika D. |
title |
PCB and organochlorine pesticide burden in eels in the lower Thames River (UK) |
title_short |
PCB and organochlorine pesticide burden in eels in the lower Thames River (UK) |
title_full |
PCB and organochlorine pesticide burden in eels in the lower Thames River (UK) |
title_fullStr |
PCB and organochlorine pesticide burden in eels in the lower Thames River (UK) |
title_full_unstemmed |
PCB and organochlorine pesticide burden in eels in the lower Thames River (UK) |
title_sort |
pcb and organochlorine pesticide burden in eels in the lower thames river (uk) |
publishDate |
2015 |
url |
https://eprints.lancs.ac.uk/id/eprint/70335/ https://doi.org/10.1016/j.chemosphere.2014.06.088 |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_relation |
Jürgens, Monika D. and Chaemfa, Chakra and Hughes, David and Johnson, Andrew C. and Jones, Kevin C. (2015) PCB and organochlorine pesticide burden in eels in the lower Thames River (UK). Chemosphere, 118. pp. 103-111. ISSN 0045-6535 |
op_doi |
https://doi.org/10.1016/j.chemosphere.2014.06.088 |
container_title |
Chemosphere |
container_volume |
118 |
container_start_page |
103 |
op_container_end_page |
111 |
_version_ |
1775348765744431104 |