Sources and Deposition of Polycyclic Aromatic Hydrocarbons to Western U.S. National Parks
Seasonal snowpack, lichens, and lake sediment cores were collected from fourteen lake catchments in eight western U.S. National Parks and analyzed for sixteen polycyclic aromatic hydrocarbons (PAHs) in order to determine their current and historical deposition, as well as to identify their potential...
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ftpubmed:oai:pubmedcentral.nih.gov:2898559 2023-05-15T15:09:28+02:00 Sources and Deposition of Polycyclic Aromatic Hydrocarbons to Western U.S. National Parks USENKO, SASCHA MASSEY SIMONICH, STACI L. HAGEMAN, KIMBERLY J. SCHRLAU, JILL E. GEISER, LINDA CAMPBELL, DON H. APPLEBY, PETER G. LANDERS, DIXON H. 2010-06-15 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2898559 http://www.ncbi.nlm.nih.gov/pubmed/20465303 https://doi.org/10.1021/es903844n en eng http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2898559 http://www.ncbi.nlm.nih.gov/pubmed/20465303 http://dx.doi.org/10.1021/es903844n Article Text 2010 ftpubmed https://doi.org/10.1021/es903844n 2013-09-03T02:16:34Z Seasonal snowpack, lichens, and lake sediment cores were collected from fourteen lake catchments in eight western U.S. National Parks and analyzed for sixteen polycyclic aromatic hydrocarbons (PAHs) in order to determine their current and historical deposition, as well as to identify their potential sources. Seasonal snowpack was measured to determine the current wintertime atmospheric PAH deposition; lichens were measured to determine the long-term, year around deposition; and the temporal PAH deposition trends were reconstructed using lake sediment cores dated using 210Pb and 137Cs. The fourteen remote lake catchments ranged from low-latitude catchments (36.6° N) at high elevation (2900 masl) in Sequoia National Park, CA to high-latitude catchments (68.4° N) at low elevation (427 masl) in the Alaskan Arctic. Over 75% of the catchments demonstrated statistically significant temporal trends in ΣPAH sediment flux, depending on catchment proximity to source regions and topographic barriers. The ΣPAH concentrations and fluxes in seasonal snowpack, lichens, and surficial sediment were 3.6 to 60,000 times greater in the Snyder Lake catchment of Glacier National Park than the other 13 lake catchments. The PAH ratios measured in snow, lichen, and sediment were used to identify a local aluminum smelter as a major source of PAHs to the Snyder Lake catchment. These results suggest that topographic barriers influence the atmospheric transport and deposition of PAHs in high-elevation ecosystems and that PAH sources to these national park ecosystems range from local point sources to diffuse regional and global sources. Text Arctic PubMed Central (PMC) Arctic Remote Lake ENVELOPE(-70.700,-70.700,70.996,70.996) Snyder ENVELOPE(-121.386,-121.386,56.917,56.917) Snyder Lake ENVELOPE(-101.664,-101.664,59.378,59.378) Environmental Science & Technology 44 12 4512 4518 |
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Article USENKO, SASCHA MASSEY SIMONICH, STACI L. HAGEMAN, KIMBERLY J. SCHRLAU, JILL E. GEISER, LINDA CAMPBELL, DON H. APPLEBY, PETER G. LANDERS, DIXON H. Sources and Deposition of Polycyclic Aromatic Hydrocarbons to Western U.S. National Parks |
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Article |
description |
Seasonal snowpack, lichens, and lake sediment cores were collected from fourteen lake catchments in eight western U.S. National Parks and analyzed for sixteen polycyclic aromatic hydrocarbons (PAHs) in order to determine their current and historical deposition, as well as to identify their potential sources. Seasonal snowpack was measured to determine the current wintertime atmospheric PAH deposition; lichens were measured to determine the long-term, year around deposition; and the temporal PAH deposition trends were reconstructed using lake sediment cores dated using 210Pb and 137Cs. The fourteen remote lake catchments ranged from low-latitude catchments (36.6° N) at high elevation (2900 masl) in Sequoia National Park, CA to high-latitude catchments (68.4° N) at low elevation (427 masl) in the Alaskan Arctic. Over 75% of the catchments demonstrated statistically significant temporal trends in ΣPAH sediment flux, depending on catchment proximity to source regions and topographic barriers. The ΣPAH concentrations and fluxes in seasonal snowpack, lichens, and surficial sediment were 3.6 to 60,000 times greater in the Snyder Lake catchment of Glacier National Park than the other 13 lake catchments. The PAH ratios measured in snow, lichen, and sediment were used to identify a local aluminum smelter as a major source of PAHs to the Snyder Lake catchment. These results suggest that topographic barriers influence the atmospheric transport and deposition of PAHs in high-elevation ecosystems and that PAH sources to these national park ecosystems range from local point sources to diffuse regional and global sources. |
format |
Text |
author |
USENKO, SASCHA MASSEY SIMONICH, STACI L. HAGEMAN, KIMBERLY J. SCHRLAU, JILL E. GEISER, LINDA CAMPBELL, DON H. APPLEBY, PETER G. LANDERS, DIXON H. |
author_facet |
USENKO, SASCHA MASSEY SIMONICH, STACI L. HAGEMAN, KIMBERLY J. SCHRLAU, JILL E. GEISER, LINDA CAMPBELL, DON H. APPLEBY, PETER G. LANDERS, DIXON H. |
author_sort |
USENKO, SASCHA |
title |
Sources and Deposition of Polycyclic Aromatic Hydrocarbons to Western U.S. National Parks |
title_short |
Sources and Deposition of Polycyclic Aromatic Hydrocarbons to Western U.S. National Parks |
title_full |
Sources and Deposition of Polycyclic Aromatic Hydrocarbons to Western U.S. National Parks |
title_fullStr |
Sources and Deposition of Polycyclic Aromatic Hydrocarbons to Western U.S. National Parks |
title_full_unstemmed |
Sources and Deposition of Polycyclic Aromatic Hydrocarbons to Western U.S. National Parks |
title_sort |
sources and deposition of polycyclic aromatic hydrocarbons to western u.s. national parks |
publishDate |
2010 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2898559 http://www.ncbi.nlm.nih.gov/pubmed/20465303 https://doi.org/10.1021/es903844n |
long_lat |
ENVELOPE(-70.700,-70.700,70.996,70.996) ENVELOPE(-121.386,-121.386,56.917,56.917) ENVELOPE(-101.664,-101.664,59.378,59.378) |
geographic |
Arctic Remote Lake Snyder Snyder Lake |
geographic_facet |
Arctic Remote Lake Snyder Snyder Lake |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2898559 http://www.ncbi.nlm.nih.gov/pubmed/20465303 http://dx.doi.org/10.1021/es903844n |
op_doi |
https://doi.org/10.1021/es903844n |
container_title |
Environmental Science & Technology |
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44 |
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12 |
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4512 |
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4518 |
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1766340660906950656 |