DOI: 10.1016/j.atmosenv.2015.04.054
Scopus记录号: 2-s2.0-84929497653
论文题名: Chemical comparison of dust and soil from the Sevier Dry Lake, UT, USA
作者: Hahnenberger M ; , Perry K ; D
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 113 起始页码: 90
结束页码: 97
语种: 英语
英文关键词: Dust composition
; Dust storms
; Particulate matter
; Playa
; Soil composition
; Utah
Scopus关键词: Air quality
; Ecology
; Ecosystems
; Lakes
; Magnesium
; Soil surveys
; Soils
; Storms
; Titanium
; Dust composition
; Dust storm
; Particulate Matter
; Playa
; Soil composition
; Utah
; Dust
; calcium
; inorganic salt
; iron
; sodium ion
; titanium
; air quality
; alpine environment
; atmospheric deposition
; biogeochemistry
; chemical composition
; concentration (composition)
; dust
; dust storm
; metropolitan area
; playa
; resuspension
; air quality
; Article
; biogeochemical cycling
; dust
; ecosystem
; geochemistry
; hazardous waste
; lake
; priority journal
; soil analysis
; synchrotron
; United States
; X ray fluorescence
; Great Basin
; Rocky Mountains
; Salt Lake City
; United States
; Utah
; Wasatch Range
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: Composition of dust transported locally, regionally, and globally has influences on human health, ecosystem functioning, and biogeochemical cycling. This study aimed to characterize differences between dust and soil samples at a dust source in the eastern Great Basin of Utah, USA. Dust and soil samples were collected from the Sevier Dry Lake, a known dust producing playa in this region. Samples were resuspended in the laboratory and collected using an 8-stage Davis Rotating-drum Universal-size-cut Monitoring (DRUM) impactor. Collected samples were analyzed for elemental concentration using Synchrotron X-Ray Fluorescence (SXRF). Element concentration was normalized and analyzed for enrichment relative to major soil element Al. Dust and soil samples contain similar enrichments of major soil elements including Si, Fe, Ca, K, Mg, and Ti. However, dust samples were significantly more enriched in Na derived from the surface salts of the Sevier Dry Lake. Minor soil elements (all elements analyzed apart from the major soil elements) were generally more enriched in dust samples and had larger enrichment values (up to 104) than seen in previous studies. Further, for dust and soil samples, the fine fraction (<2.5μm) was more enriched in minor soil elements than the coarse fraction (2.5-10μm). Dust from this source, containing elevated levels of potentially hazardous elements, degrades air quality in the Salt Lake City metropolitan area of Utah and is deposited in the alpine ecosystems of the Wasatch Mountains. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81705
Appears in Collections: 气候变化事实与影响
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作者单位: Geosciences Department, Salt Lake Community College, 4600 S Redwood Road, Salt Lake City, UT, United States; Department of Atmospheric Sciences, University of Utah, 135 South 1460 East, Salt Lake City, UT, United States
Recommended Citation:
Hahnenberger M,, Perry K,D. Chemical comparison of dust and soil from the Sevier Dry Lake, UT, USA[J]. Atmospheric Environment,2015-01-01,113