globalchange  > 气候变化事实与影响
DOI: 10.1016/j.atmosenv.2017.05.048
Scopus记录号: 2-s2.0-85020384831
论文题名:
Elements and inorganic ions as source tracers in recent Greenland snow
作者: Lai A; M; , Shafer M; M; , Dibb J; E; , Polashenski C; M; , Schauer J; J
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 164
起始页码: 205
结束页码: 215
语种: 英语
英文关键词: Chemical composition ; Dust ; Greenland ; Snow ; Trace elements
Scopus关键词: Aerosols ; Alkaline earth metals ; Alkalinity ; Aluminum ; Atmospheric aerosols ; Atmospheric movements ; Calcium ; Carbon ; Dust ; Dysprosium ; Europium ; Gadolinium ; Geochemistry ; Ions ; Lead ; Magnesium ; Manganese ; Manganese removal (water treatment) ; Neodymium ; Particulate emissions ; Praseodymium ; Principal component analysis ; Samarium ; Snow ; Strontium ; Tin ; Titanium ; Uncertainty analysis ; Uranium ; Zinc ; Alkaline-earth elements ; Anthropogenic emissions ; Anthropogenic sources ; Atmospheric transport ; Chemical compositions ; Crustal enrichment ; Greenland ; Source attribution ; Trace elements ; aluminum ; ammonia ; arsenic ; black carbon ; cadmium ; calcium ion ; cerium ; chromium ; dysprosium ; europium ; gadolinium ; ion ; iron ; lanthanum ; lead ; magnesium ; manganese ; niobium ; potassium ; potassium ion ; samarium ; silicon ; snow ; sodium ; sodium ion ; sulfate ; sulfur ; tin ; titanium ; trace metal ; aerosol ; anthropogenic source ; atmospheric deposition ; atmospheric transport ; black carbon ; chemical composition ; chemical element ; concentration (composition) ; dust ; inorganic compound ; ion ; principal component analysis ; sea salt ; snow ; source identification ; trace element ; tracer ; aerosol ; Article ; atmospheric transport ; biomass ; combustion ; controlled study ; dust ; Greenland ; ice sheet ; ion chromatography ; mass ; priority journal ; seasonal variation ; water content ; Arctic ; Arctic ; Greenland
Scopus学科分类: Environmental Science: Water Science and Technology ; Earth and Planetary Sciences: Earth-Surface Processes ; Environmental Science: Environmental Chemistry
英文摘要: Atmospheric transport of aerosols leads to deposition of impurities in snow, even in areas of the Arctic as remote as Greenland. Major ions (e.g. Na+, Ca2+, NH4+, K+, SO42−) are frequently used as tracers for common aerosol sources (e.g. sea spray, dust, biomass burning, anthropogenic emissions). Trace element data can supplement tracer ion data by providing additional information about sources. Although many studies have considered either trace elements or major ions, few have reported both. This study determined total and water-soluble concentrations of 31 elements (Al, As, Ca, Cd, Ce, Co, Cr, Dy, Eu, Fe, Gd, K, La, Mg, Mn, Na, Nb, Nd, Pb, Pr, S, Sb, Si, Sm, Sn, Sr, Ti, V, U, Y, Zn) in shallow snow pits at 22 sampling sites in Greenland, along a transect from Summit Station to sites in the northwest. Black carbon (BC) and inorganic ions were measured in colocated samples. Sodium, which is typically used as a tracer of sea spray, did not appear to have any non-marine sources. The rare earth elements, alkaline earth elements (Mg, Ca, Sr), and other crustal elements (Fe, Si, Ti, V) were not enriched above crustal abundances relative to Al, indicating that these elements are primarily dust sourced. Calculated ratios of non-sea salt Ca (nssCa) to estimated dust mass affirm the use of nssCa as a dust tracer, but suggest up to 50% uncertainty in that estimate in the absence of other crustal element data. Crustal enrichment factors indicated that As, Cd, Pb, non-sea-salt S, Sb, Sn, and Zn were enriched in these samples, likely by anthropogenic sources. Principal component analysis indicated more than one crustal factor, and a variety of factors related to anthropogenically enriched elements. Analysis of trace elements alongside major tracer ions does not change interpretation of ion-based source attribution for sources that are well-characterized by ions, but is valuable for assessing uncertainty in source attribution and identifying sources not represented by major ions. © 2017 Elsevier Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82749
Appears in Collections:气候变化事实与影响

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作者单位: Environmental Chemistry and Technology Program, University of Wisconsin-Madison, Madison, WI, United States; Wisconsin State Laboratory of Hygiene, Madison, WI, United States; Earth Systems Research Center, EOS, University of New Hampshire, Durham, NH, United States; USACE-CRREL, Ft. Wainwright, AK, United States; Thayer School of Engineering, Dartmouth College, Hanover, NH, United States

Recommended Citation:
Lai A,M,, Shafer M,et al. Elements and inorganic ions as source tracers in recent Greenland snow[J]. Atmospheric Environment,2017-01-01,164
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