History of Inuit Community Exposure to Lead, Cadmium, and Mercury in Sewage Lake Sediments
Exposure to lead, cadmium, and mercury is known to be high in many arctic Inuit communities. These metals are emitted from industrial and urban sources, are distributed by long-range atmospheric transport to remote regions, and are found in Inuit country foods. Current community exposure to these me...
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ftpubmed:oai:pubmedcentral.nih.gov:1281271 2023-05-15T14:59:22+02:00 History of Inuit Community Exposure to Lead, Cadmium, and Mercury in Sewage Lake Sediments Hermanson, Mark H. Brozowski, James R. 2005-10 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1281271 http://www.ncbi.nlm.nih.gov/pubmed/16203239 https://doi.org/10.1289/ehp.7985 en eng National Institute of Environmental Health Sciences http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1281271 http://www.ncbi.nlm.nih.gov/pubmed/16203239 http://dx.doi.org/10.1289/ehp.7985 This is an Open Access article: verbatim copying and redistribution of this article are permitted in all media for any purpose, provided this notice is preserved along with the article's original DOI. Research Text 2005 ftpubmed https://doi.org/10.1289/ehp.7985 2013-08-30T16:59:04Z Exposure to lead, cadmium, and mercury is known to be high in many arctic Inuit communities. These metals are emitted from industrial and urban sources, are distributed by long-range atmospheric transport to remote regions, and are found in Inuit country foods. Current community exposure to these metals can be measured in food, but feces and urine are also excellent indicators of total exposure from ingestion and inhalation because a high percentage of each metal is excreted. Bulk domestic sewage or its residue in a waste treatment system is a good substitute measure. Domestic waste treatment systems that accumulate metals in sediment provide an accurate historical record of changes in ingestion or inhalation. We collected sediment cores from an arctic lake used for facultative domestic sewage treatment to identify the history of community exposure to Pb, Cd, and Hg. Cores were dated and fluxes were measured for each metal. A nearby lake was sampled to measure combined background and atmospheric inputs, which were subtracted from sewage lake data. Pb, Cd, and Hg inputs from sewage grew rapidly after the onset of waste disposal in the late 1960s and exceeded the rate of population growth in the contributing community from 1970 to 1990. The daily per-person Pb input in 1990 (720,000 ng/person per day) exceeded the tolerable daily intake level. The Cd input (48,000 ng/person per day) and Hg input (19,000 ng/person per day) were below the respective TDI levels at the time. Text Arctic inuit PubMed Central (PMC) Arctic Arctic Lake ENVELOPE(-130.826,-130.826,57.231,57.231) Science of The Total Environment 364 1-3 260 271 |
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Research Hermanson, Mark H. Brozowski, James R. History of Inuit Community Exposure to Lead, Cadmium, and Mercury in Sewage Lake Sediments |
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Research |
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Exposure to lead, cadmium, and mercury is known to be high in many arctic Inuit communities. These metals are emitted from industrial and urban sources, are distributed by long-range atmospheric transport to remote regions, and are found in Inuit country foods. Current community exposure to these metals can be measured in food, but feces and urine are also excellent indicators of total exposure from ingestion and inhalation because a high percentage of each metal is excreted. Bulk domestic sewage or its residue in a waste treatment system is a good substitute measure. Domestic waste treatment systems that accumulate metals in sediment provide an accurate historical record of changes in ingestion or inhalation. We collected sediment cores from an arctic lake used for facultative domestic sewage treatment to identify the history of community exposure to Pb, Cd, and Hg. Cores were dated and fluxes were measured for each metal. A nearby lake was sampled to measure combined background and atmospheric inputs, which were subtracted from sewage lake data. Pb, Cd, and Hg inputs from sewage grew rapidly after the onset of waste disposal in the late 1960s and exceeded the rate of population growth in the contributing community from 1970 to 1990. The daily per-person Pb input in 1990 (720,000 ng/person per day) exceeded the tolerable daily intake level. The Cd input (48,000 ng/person per day) and Hg input (19,000 ng/person per day) were below the respective TDI levels at the time. |
format |
Text |
author |
Hermanson, Mark H. Brozowski, James R. |
author_facet |
Hermanson, Mark H. Brozowski, James R. |
author_sort |
Hermanson, Mark H. |
title |
History of Inuit Community Exposure to Lead, Cadmium, and Mercury in Sewage Lake Sediments |
title_short |
History of Inuit Community Exposure to Lead, Cadmium, and Mercury in Sewage Lake Sediments |
title_full |
History of Inuit Community Exposure to Lead, Cadmium, and Mercury in Sewage Lake Sediments |
title_fullStr |
History of Inuit Community Exposure to Lead, Cadmium, and Mercury in Sewage Lake Sediments |
title_full_unstemmed |
History of Inuit Community Exposure to Lead, Cadmium, and Mercury in Sewage Lake Sediments |
title_sort |
history of inuit community exposure to lead, cadmium, and mercury in sewage lake sediments |
publisher |
National Institute of Environmental Health Sciences |
publishDate |
2005 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1281271 http://www.ncbi.nlm.nih.gov/pubmed/16203239 https://doi.org/10.1289/ehp.7985 |
long_lat |
ENVELOPE(-130.826,-130.826,57.231,57.231) |
geographic |
Arctic Arctic Lake |
geographic_facet |
Arctic Arctic Lake |
genre |
Arctic inuit |
genre_facet |
Arctic inuit |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1281271 http://www.ncbi.nlm.nih.gov/pubmed/16203239 http://dx.doi.org/10.1289/ehp.7985 |
op_rights |
This is an Open Access article: verbatim copying and redistribution of this article are permitted in all media for any purpose, provided this notice is preserved along with the article's original DOI. |
op_doi |
https://doi.org/10.1289/ehp.7985 |
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Science of The Total Environment |
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364 |
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1-3 |
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260 |
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271 |
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1766331471253995520 |