Metals and polycyclic aromatic hydrocarbons in colonial waterbird eggs from Lake Athabasca and the Peace-Athabasca Delta, Canada
In 2009, aquatic bird eggs from a variety of species were collected from three sites in northern Alberta, Canada. Two sites were located in receiving waters of the Athabasca River, which drains the oil sands industrial region north of Fort McMurray, Alberta. The third site, located on the Peace Rive...
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ftcarletonunivir:oai:carleton.ca:15789 2023-05-15T15:25:59+02:00 Metals and polycyclic aromatic hydrocarbons in colonial waterbird eggs from Lake Athabasca and the Peace-Athabasca Delta, Canada Hebert, C.E. (Craig) Weseloh, D.C. (D.V. Chip) Macmillan, S. (Stuart) Campbell, D. (David) Nordstrom, W. (Wayne) 2011-05-01 https://ir.library.carleton.ca/pub/15789 https://doi.org/10.1002/etc.489 en eng https://ir.library.carleton.ca/pub/15789 doi:10.1002/etc.489 Environmental Toxicology and Chemistry vol. 30 no. 5, pp. 1178-1183 Athabasca River Bird eggs Mercury Oil sands PAHs info:eu-repo/semantics/article 2011 ftcarletonunivir https://doi.org/10.1002/etc.489 2022-02-06T21:50:11Z In 2009, aquatic bird eggs from a variety of species were collected from three sites in northern Alberta, Canada. Two sites were located in receiving waters of the Athabasca River, which drains the oil sands industrial region north of Fort McMurray, Alberta. The third site, located on the Peace River, was remote from the influence of the Athabasca River. Levels of mercury, arsenic, and polycyclic aromatic hydrocarbons (PAHs) were measured in the eggs along with nitrogen stable isotopes (δ15N) as an indicator of bird trophic position. Levels of As and PAHs in eggs were low, whereas Hg was measureable in all samples. Egg Hg levels increased with δ15N values (a proxy of food web trophic position); however, some eggs exhibited Hg levels greater than expected based on trophic position. These eggs were from sites in receiving waters of the Athabasca River, namely, Mamawi Lake and Egg Island. Levels of Hg in egg pools were correlated with naphthalene levels, perhaps indicating a common source of contamination. Temporal comparison of Hg levels in California gull (Larus californicus) eggs from the Lake Athabasca colony indicated that egg Hg burdens increased 40% from 1977 to 2009. More research is required to evaluate temporal trends in levels of environmental contaminants and to identify sources. Article in Journal/Newspaper Athabasca River Fort McMurray Lake Athabasca Peace River Egg Island Carleton University's Institutional Repository Athabasca River Canada Egg Island ENVELOPE(-57.708,-57.708,-63.674,-63.674) Fort McMurray Mamawi Lake ENVELOPE(-111.484,-111.484,58.599,58.599) Peace-Athabasca Delta ENVELOPE(-111.502,-111.502,58.667,58.667) Environmental Toxicology and Chemistry 30 5 1178 1183 |
institution |
Open Polar |
collection |
Carleton University's Institutional Repository |
op_collection_id |
ftcarletonunivir |
language |
English |
topic |
Athabasca River Bird eggs Mercury Oil sands PAHs |
spellingShingle |
Athabasca River Bird eggs Mercury Oil sands PAHs Hebert, C.E. (Craig) Weseloh, D.C. (D.V. Chip) Macmillan, S. (Stuart) Campbell, D. (David) Nordstrom, W. (Wayne) Metals and polycyclic aromatic hydrocarbons in colonial waterbird eggs from Lake Athabasca and the Peace-Athabasca Delta, Canada |
topic_facet |
Athabasca River Bird eggs Mercury Oil sands PAHs |
description |
In 2009, aquatic bird eggs from a variety of species were collected from three sites in northern Alberta, Canada. Two sites were located in receiving waters of the Athabasca River, which drains the oil sands industrial region north of Fort McMurray, Alberta. The third site, located on the Peace River, was remote from the influence of the Athabasca River. Levels of mercury, arsenic, and polycyclic aromatic hydrocarbons (PAHs) were measured in the eggs along with nitrogen stable isotopes (δ15N) as an indicator of bird trophic position. Levels of As and PAHs in eggs were low, whereas Hg was measureable in all samples. Egg Hg levels increased with δ15N values (a proxy of food web trophic position); however, some eggs exhibited Hg levels greater than expected based on trophic position. These eggs were from sites in receiving waters of the Athabasca River, namely, Mamawi Lake and Egg Island. Levels of Hg in egg pools were correlated with naphthalene levels, perhaps indicating a common source of contamination. Temporal comparison of Hg levels in California gull (Larus californicus) eggs from the Lake Athabasca colony indicated that egg Hg burdens increased 40% from 1977 to 2009. More research is required to evaluate temporal trends in levels of environmental contaminants and to identify sources. |
format |
Article in Journal/Newspaper |
author |
Hebert, C.E. (Craig) Weseloh, D.C. (D.V. Chip) Macmillan, S. (Stuart) Campbell, D. (David) Nordstrom, W. (Wayne) |
author_facet |
Hebert, C.E. (Craig) Weseloh, D.C. (D.V. Chip) Macmillan, S. (Stuart) Campbell, D. (David) Nordstrom, W. (Wayne) |
author_sort |
Hebert, C.E. (Craig) |
title |
Metals and polycyclic aromatic hydrocarbons in colonial waterbird eggs from Lake Athabasca and the Peace-Athabasca Delta, Canada |
title_short |
Metals and polycyclic aromatic hydrocarbons in colonial waterbird eggs from Lake Athabasca and the Peace-Athabasca Delta, Canada |
title_full |
Metals and polycyclic aromatic hydrocarbons in colonial waterbird eggs from Lake Athabasca and the Peace-Athabasca Delta, Canada |
title_fullStr |
Metals and polycyclic aromatic hydrocarbons in colonial waterbird eggs from Lake Athabasca and the Peace-Athabasca Delta, Canada |
title_full_unstemmed |
Metals and polycyclic aromatic hydrocarbons in colonial waterbird eggs from Lake Athabasca and the Peace-Athabasca Delta, Canada |
title_sort |
metals and polycyclic aromatic hydrocarbons in colonial waterbird eggs from lake athabasca and the peace-athabasca delta, canada |
publishDate |
2011 |
url |
https://ir.library.carleton.ca/pub/15789 https://doi.org/10.1002/etc.489 |
long_lat |
ENVELOPE(-57.708,-57.708,-63.674,-63.674) ENVELOPE(-111.484,-111.484,58.599,58.599) ENVELOPE(-111.502,-111.502,58.667,58.667) |
geographic |
Athabasca River Canada Egg Island Fort McMurray Mamawi Lake Peace-Athabasca Delta |
geographic_facet |
Athabasca River Canada Egg Island Fort McMurray Mamawi Lake Peace-Athabasca Delta |
genre |
Athabasca River Fort McMurray Lake Athabasca Peace River Egg Island |
genre_facet |
Athabasca River Fort McMurray Lake Athabasca Peace River Egg Island |
op_source |
Environmental Toxicology and Chemistry vol. 30 no. 5, pp. 1178-1183 |
op_relation |
https://ir.library.carleton.ca/pub/15789 doi:10.1002/etc.489 |
op_doi |
https://doi.org/10.1002/etc.489 |
container_title |
Environmental Toxicology and Chemistry |
container_volume |
30 |
container_issue |
5 |
container_start_page |
1178 |
op_container_end_page |
1183 |
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