Arid
DOI10.1016/j.aeolia.2016.09.001
Concentrations of mineral aerosol from desert to plains across the central Rocky Mountains, western United States
Reynolds, Richard L.1,2; Munson, Seth M.3; Fernandez, Daniel4; Goldstein, Harland L.1; Neff, Jason C.5
通讯作者Reynolds, Richard L.
来源期刊AEOLIAN RESEARCH
ISSN1875-9637
EISSN2212-1684
出版年2016
卷号23页码:21-35
英文摘要

Mineral dusts can have profound effects on climate, clouds, ecosystem processes, and human health. Because regional dust emission and deposition in western North America are not well understood, measurements of total suspended particulate (TSP) from 2011 to 2013 were made along a 500-km transect of five remote sites in Utah and Colorado, USA. The TSP concentrations in mu g m(-3) adjusted to a 24-h period were relatively high at the two westernmost, dryland sites at Canyonlands National Park (mean = 135) and at Mesa Verde National Park (mean = 99), as well as at the easternmost site on the Great Plains (mean = 143). The TSP concentrations at the two intervening montane sites were less, with more loading on the western slope of the Rocky Mountains (Telluride, mean = 68) closest to the desert sites compared with the site on the eastern slope (Niwot Ridge, mean = 58). Dust concentrations were commonly highest during late winter-late spring, when Pacific frontal storms are the dominant causes of regional wind. Low concentrations (<7 wt%) of organic matter indicated that rock-derived mineral particles composed most TSP. Most TSP mass was carried by particle sizes larger than 10 mu m (PM>10), as revealed by relatively low average daily concentrations of fine (<5 mu g m(-3); PM2.5) and coarse (<10 mu g m(-3); PM2.5-10) fractions monitored at or near four sites. Standard air-quality measurements for PM2.5 and PM10 apparently do not capture the large majority of mineral-particulate pollution in the remote western interior U.S. Published by Elsevier B.V.


英文关键词Desert dust Air pollution Mineral aerosols Total suspended particulates (TSP) Western North America
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000389159200003
WOS关键词2002 DUST STORM ; CANARY-ISLANDS ; NORTH-AMERICA ; AIR-QUALITY ; CHEMICAL-COMPOSITION ; AEOLIAN DUST ; DEPOSITION ; EVENTS ; USA ; TRANSPORT
WOS类目Geography, Physical
WOS研究方向Physical Geography
来源机构United States Geological Survey
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/191016
作者单位1.US Geol Survey, Geosci & Environm Change Sci Ctr, Box 25046, Denver, CO 80225 USA;
2.Univ Minnesota, Dept Earth Sci, Minneapolis, MN 55455 USA;
3.US Geol Survey, Southwest Biol Sci Ctr, 2255 N Gemini Dr, Flagstaff, AZ 86001 USA;
4.Univ Colorado, Dept Geol Sci, UCB 399, Boulder, CO USA;
5.Univ Colorado, Environm Studies Program, UCB 397, Boulder, CO USA
推荐引用方式
GB/T 7714
Reynolds, Richard L.,Munson, Seth M.,Fernandez, Daniel,et al. Concentrations of mineral aerosol from desert to plains across the central Rocky Mountains, western United States[J]. United States Geological Survey,2016,23:21-35.
APA Reynolds, Richard L.,Munson, Seth M.,Fernandez, Daniel,Goldstein, Harland L.,&Neff, Jason C..(2016).Concentrations of mineral aerosol from desert to plains across the central Rocky Mountains, western United States.AEOLIAN RESEARCH,23,21-35.
MLA Reynolds, Richard L.,et al."Concentrations of mineral aerosol from desert to plains across the central Rocky Mountains, western United States".AEOLIAN RESEARCH 23(2016):21-35.
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