Particulate matter concentration and air quality affected by windblown dust in the Columbia plateau |
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| Authors: | Sharratt B S Lauer D |
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| Institution: | USDA-ARS, 213 LJ Smith Hall, Washington State Univ., Pullman, WA, USA. sharratt@wsu.edu |
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| Abstract: | The USEPA has proposed to regulate PM(coarse) (particulate matter 2.5 to 10 microm in diameter). Exceedance of the proposed National Ambient Air Quality Standard (NAAQS) for PM(coarse) is expected within the Columbia Plateau of the Pacific Northwest United States based on the high frequency of dust storms and the large contribution of crustal material to fugitive dust in the region. The objective of this study was to explore the implication of the proposed NAAQS for PM(coarse) on air quality. Concurrent observations of both PM10 (particulate matter
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