Provenance of Anthropogenic Pb and Atmospheric Dust to Northwestern North America
Industrial activities release aerosols containing toxic metals into the atmosphere, where they are transported far from their sources, impacting ecosystems and human health. Concomitantly, long-range-transported mineral dust aerosols play a role in Earth's radiative balance and supply micronutr...
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AMER CHEMICAL SOC
2022
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Online Access: | http://ir.nigpas.ac.cn/handle/332004/41471 http://ir.nigpas.ac.cn/handle/332004/41472 https://doi.org/10.1021/acs.est.2c03767 |
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ftchinacscnigpas:oai:ir.nigpas.ac.cn:332004/41472 2023-05-15T15:10:49+02:00 Provenance of Anthropogenic Pb and Atmospheric Dust to Northwestern North America Koffman, Bess G. Saylor, Patrick Zhong, Roujia Sethares, Lily Yoder, Meg F. Hanschka, Lena Methven, Taylor Cai, Yue Bolge, Louise Longman, Jack Goldstein, Steven L. Osterberg, Erich C. 2022-09-09 http://ir.nigpas.ac.cn/handle/332004/41471 http://ir.nigpas.ac.cn/handle/332004/41472 https://doi.org/10.1021/acs.est.2c03767 英语 eng AMER CHEMICAL SOC ENVIRONMENTAL SCIENCE & TECHNOLOGY http://ir.nigpas.ac.cn/handle/332004/41471 http://ir.nigpas.ac.cn/handle/332004/41472 doi:10.1021/acs.est.2c03767 Sr-Nd-Pb isotopes air pollution ice core lead emissions lead flux Alaska China North Pacific ICE-CORE ISOTOPIC COMPOSITIONS LEAD ISOTOPES INDUSTRIAL LEAD TRACE-ELEMENT AIR-POLLUTION URBAN AIR PACIFIC SR Engineering Environmental Sciences & Ecology Environmental Environmental Sciences 期刊论文 2022 ftchinacscnigpas https://doi.org/10.1021/acs.est.2c03767 2023-01-20T01:14:31Z Industrial activities release aerosols containing toxic metals into the atmosphere, where they are transported far from their sources, impacting ecosystems and human health. Concomitantly, long-range-transported mineral dust aerosols play a role in Earth's radiative balance and supply micronutrients to iron-limited ecosystems. To evaluate the sources of dust and pollutant aerosols to Alaska following the 2001 phase-out of leaded gasoline in China, we measured Pb-Sr-Nd isotopic compositions of particles collected in 2016 from snow pits across an elevational transect (2180-5240 m-a.s.l) in Denali National Park, USA. We also determined Pb flux and enrichment from 1991-2011 in the Denali ice core (3870 m-a.s.l). Chinese coal-burning and non-ferrous metal smelting account for up to 64% of Pb deposition at our sites, a value consistent across the western Arctic. Pb isotope ratios in the aerosols did not change between 2001 and 2016, despite the ban on lead additives. Emissions estimates demonstrate that industrial activities have more than compensated for the phase-out of leaded gasoline, with China emitting similar to 37,000 metric tons year-1 of Pb during 2013-2015, approximately 78% of the Pb from East Asia. The Pb flux to Alaska now equals that measured in southern Greenland during peak pollution from North America. Report Arctic Greenland Human health ice core Alaska Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences) Arctic Greenland Pacific Environmental Science & Technology 56 18 13107 13118 |
institution |
Open Polar |
collection |
Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences) |
op_collection_id |
ftchinacscnigpas |
language |
English |
topic |
Sr-Nd-Pb isotopes air pollution ice core lead emissions lead flux Alaska China North Pacific ICE-CORE ISOTOPIC COMPOSITIONS LEAD ISOTOPES INDUSTRIAL LEAD TRACE-ELEMENT AIR-POLLUTION URBAN AIR PACIFIC SR Engineering Environmental Sciences & Ecology Environmental Environmental Sciences |
spellingShingle |
Sr-Nd-Pb isotopes air pollution ice core lead emissions lead flux Alaska China North Pacific ICE-CORE ISOTOPIC COMPOSITIONS LEAD ISOTOPES INDUSTRIAL LEAD TRACE-ELEMENT AIR-POLLUTION URBAN AIR PACIFIC SR Engineering Environmental Sciences & Ecology Environmental Environmental Sciences Koffman, Bess G. Saylor, Patrick Zhong, Roujia Sethares, Lily Yoder, Meg F. Hanschka, Lena Methven, Taylor Cai, Yue Bolge, Louise Longman, Jack Goldstein, Steven L. Osterberg, Erich C. Provenance of Anthropogenic Pb and Atmospheric Dust to Northwestern North America |
topic_facet |
Sr-Nd-Pb isotopes air pollution ice core lead emissions lead flux Alaska China North Pacific ICE-CORE ISOTOPIC COMPOSITIONS LEAD ISOTOPES INDUSTRIAL LEAD TRACE-ELEMENT AIR-POLLUTION URBAN AIR PACIFIC SR Engineering Environmental Sciences & Ecology Environmental Environmental Sciences |
description |
Industrial activities release aerosols containing toxic metals into the atmosphere, where they are transported far from their sources, impacting ecosystems and human health. Concomitantly, long-range-transported mineral dust aerosols play a role in Earth's radiative balance and supply micronutrients to iron-limited ecosystems. To evaluate the sources of dust and pollutant aerosols to Alaska following the 2001 phase-out of leaded gasoline in China, we measured Pb-Sr-Nd isotopic compositions of particles collected in 2016 from snow pits across an elevational transect (2180-5240 m-a.s.l) in Denali National Park, USA. We also determined Pb flux and enrichment from 1991-2011 in the Denali ice core (3870 m-a.s.l). Chinese coal-burning and non-ferrous metal smelting account for up to 64% of Pb deposition at our sites, a value consistent across the western Arctic. Pb isotope ratios in the aerosols did not change between 2001 and 2016, despite the ban on lead additives. Emissions estimates demonstrate that industrial activities have more than compensated for the phase-out of leaded gasoline, with China emitting similar to 37,000 metric tons year-1 of Pb during 2013-2015, approximately 78% of the Pb from East Asia. The Pb flux to Alaska now equals that measured in southern Greenland during peak pollution from North America. |
format |
Report |
author |
Koffman, Bess G. Saylor, Patrick Zhong, Roujia Sethares, Lily Yoder, Meg F. Hanschka, Lena Methven, Taylor Cai, Yue Bolge, Louise Longman, Jack Goldstein, Steven L. Osterberg, Erich C. |
author_facet |
Koffman, Bess G. Saylor, Patrick Zhong, Roujia Sethares, Lily Yoder, Meg F. Hanschka, Lena Methven, Taylor Cai, Yue Bolge, Louise Longman, Jack Goldstein, Steven L. Osterberg, Erich C. |
author_sort |
Koffman, Bess G. |
title |
Provenance of Anthropogenic Pb and Atmospheric Dust to Northwestern North America |
title_short |
Provenance of Anthropogenic Pb and Atmospheric Dust to Northwestern North America |
title_full |
Provenance of Anthropogenic Pb and Atmospheric Dust to Northwestern North America |
title_fullStr |
Provenance of Anthropogenic Pb and Atmospheric Dust to Northwestern North America |
title_full_unstemmed |
Provenance of Anthropogenic Pb and Atmospheric Dust to Northwestern North America |
title_sort |
provenance of anthropogenic pb and atmospheric dust to northwestern north america |
publisher |
AMER CHEMICAL SOC |
publishDate |
2022 |
url |
http://ir.nigpas.ac.cn/handle/332004/41471 http://ir.nigpas.ac.cn/handle/332004/41472 https://doi.org/10.1021/acs.est.2c03767 |
geographic |
Arctic Greenland Pacific |
geographic_facet |
Arctic Greenland Pacific |
genre |
Arctic Greenland Human health ice core Alaska |
genre_facet |
Arctic Greenland Human health ice core Alaska |
op_relation |
ENVIRONMENTAL SCIENCE & TECHNOLOGY http://ir.nigpas.ac.cn/handle/332004/41471 http://ir.nigpas.ac.cn/handle/332004/41472 doi:10.1021/acs.est.2c03767 |
op_doi |
https://doi.org/10.1021/acs.est.2c03767 |
container_title |
Environmental Science & Technology |
container_volume |
56 |
container_issue |
18 |
container_start_page |
13107 |
op_container_end_page |
13118 |
_version_ |
1766341771322720256 |