Fine particle emission potential from loam soils in a semiarid region

Feng, Guanglong, Sharratt, Brenton and Wendling, Laura (2011) Fine particle emission potential from loam soils in a semiarid region. Soil Science Society of America Journal, 75 6: 2262-2270. doi:10.2136/sssaj2011.0087

Author Feng, Guanglong
Sharratt, Brenton
Wendling, Laura
Title Fine particle emission potential from loam soils in a semiarid region
Journal name Soil Science Society of America Journal   Check publisher's open access policy
ISSN 0361-5995
Publication date 2011-09-27
Year available 2011
Sub-type Article (original research)
DOI 10.2136/sssaj2011.0087
Open Access Status
Volume 75
Issue 6
Start page 2262
End page 2270
Total pages 9
Place of publication Madison, WI United States
Publisher Soil Science Society of America
Language eng
Formatted abstract
Fugitive dust emission from agricultural soils is a concern in the U.S. Inland Pacific Northwest because emission of particles with an aerodynamic diameter =10 μ m (PM10) and ≤2.5 μ m (PM2.5) are regulated by the U.S. Environmental Protection Agency (EPA) as air pollutants. The objective of this study was to characterize the PM10 and PM2.5 emission potential of soils in the region. Soil from the upper 3-cm layer of the profi le was collected from fi ve major soil types in southeastern Washington. Soil samples collected from the fi eld were placed inside a wind tunnel to simultaneously measure PM10 and PM2.5 emissions at three wind speeds. Dispersed soil analysis indicated that the sand and silt content, respectively, ranged from 17 to 68% and 23 to 66% while nondispersed soil analysis revealed the PM10 and PM2.5 content averaged 3.7 and 1.2%, respectively, across the fi ve soil types. Emissions of PM10 and PM2.5 were greatest for Warden sandy loam (coarse-silty, mixed, superactive, mesic Xeric Haplocambids) and lowest for Walla Walla silt loam (coarse-silty, mixed, superactive, mesic Typic Haploxerolls). During the 5 min wind tunnel test at the highest wind speed (18 m s -1), loss of sediment, PM10 and PM2.5 for the fi ve soils ranged from 113 to 8039 g m -2, 0.4 to 11.0 g m -2, and 0.1 to 6.0 g m -2, respectively. Although the PM10/sediment loss ratio diff ered among soils, there was no diff erence in the PM2.5/sediment loss ratio across soils. Our results suggest that the emission potential varies for windblown soils found across the Inland Pacific Northwest
Keyword Air pollution
Anoxic sediments
Aerodynamic diameters
Agricultural Soils
Soil sample
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Agriculture and Food Sciences
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Citation counts: TR Web of Science Citation Count  Cited 8 times in Thomson Reuters Web of Science Article | Citations
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Created: Sat, 01 Feb 2014, 03:11:40 EST by Laura Wendling on behalf of School of Agriculture and Food Sciences