Provenance of Anthropogenic Pb and Atmospheric Dust to Northwestern North America

doi:10.1021/acs.est.2c03767

	Provenance of Anthropogenic Pb and Atmospheric Dust to Northwestern North America
	Koffman, Bess G.9; Saylor, Patrick 7,8; Zhong, Roujia 6; Sethares, Lily 9; Yoder, Meg F.5,9; Hanschka, Lena 9; Methven, Taylor 9; Cai, Yue 3,4; Bolge, Louise 3; Longman, Jack 2
刊名	ENVIRONMENTAL SCIENCE & TECHNOLOGY
	2022-09-09
页码	12
关键词	Sr-Nd-Pb isotopes air pollution ice core lead emissions lead flux Alaska China North Pacific
ISSN号	0013-936X
DOI	10.1021/acs.est.2c03767
通讯作者	Koffman, Bess G.(bkoffman@colby.edu) ; Cai, Yue(cai@nigpas.ac.cn)
英文摘要	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.
资助项目	Colby College ; Buck Lab for Climate and Environment ; Dartmouth College Society of Fellows ; Storke Endowment of the Columbia Department of Earth and Environmental Sciences ; American Association of University Women (AAUW)
WOS关键词	ICE-CORE ; ISOTOPIC COMPOSITIONS ; LEAD ISOTOPES ; INDUSTRIAL LEAD ; TRACE-ELEMENT ; AIR-POLLUTION ; URBAN AIR ; PACIFIC ; CHINA ; SR
WOS研究方向	Engineering ; Environmental Sciences & Ecology
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000883000300001
资助机构	Colby College ; Buck Lab for Climate and Environment ; Dartmouth College Society of Fellows ; Storke Endowment of the Columbia Department of Earth and Environmental Sciences ; American Association of University Women (AAUW)
内容类型	期刊论文
源URL	[http://ir.nigpas.ac.cn/handle/332004/41471]
专题	中国科学院南京地质古生物研究所
通讯作者	Koffman, Bess G.; Cai, Yue
作者单位	1.Columbia Univ, Dept Earth & Environm Sci, New York, NY 10027 USA 2.Carl von Ossietzky Univ Oldenburg, Inst Chem & Biol Marine Environm, D-26129 Oldenburg, Germany 3.Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY 10964 USA 4.Chinese Acad Sci, Nanjing Inst Geol & Paleontol, State Key Lab Paleobiol & Stratig, Nanjing 210008, Jiangsu, Peoples R China 5.Boston Coll, Dept Earth & Environm Sci, Boston, MA 02467 USA 6.Colby Coll, Dept Comp Sci, Waterville, ME 04901 USA 7.Dartmouth Coll, Earth Sci Dept, Hanover, NH 03755 USA 8.Natl Ctr Atmospher Res, Boulder, CO 80307 USA 9.Colby Coll, Dept Geol, Waterville, ME 04901 USA
推荐引用方式 GB/T 7714	Koffman, Bess G.,Saylor, Patrick,Zhong, Roujia,et al. Provenance of Anthropogenic Pb and Atmospheric Dust to Northwestern North America[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2022:12.
APA	Koffman, Bess G..,Saylor, Patrick.,Zhong, Roujia.,Sethares, Lily.,Yoder, Meg F..,...&Osterberg, Erich C..(2022).Provenance of Anthropogenic Pb and Atmospheric Dust to Northwestern North America.ENVIRONMENTAL SCIENCE & TECHNOLOGY,12.
MLA	Koffman, Bess G.,et al."Provenance of Anthropogenic Pb and Atmospheric Dust to Northwestern North America".ENVIRONMENTAL SCIENCE & TECHNOLOGY (2022):12.