Windblown Dust Contributes to High PM25 Concentrations
نویسندگان
چکیده
منابع مشابه
Sensitivity of playa windblown-dust emissions to climatic and anthropogenic change
Windblown dust is a significant component of atmospheric PM (particulate matter) in arid regions worldwide, with adverse effects on human health and visibility. In the future, windblown-dust emissions are likely to increase if water tables drop as a result of climatic or anthropogenic changes. To manage this hazard, air-quality managers need quantitative models that predict the impact of climat...
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Exceedance of the US Environmental Protection Agency national ambient air quality standard for PM10 (particulate matter ≤10 μm in aerodynamic diameter) within the Columbia Plateau region of the Pacific Northwest US is largely caused by wind erosion of agricultural lands managed in a winter wheat–summer fallow rotation. Land management practices, therefore, are sought that will reduce erosion an...
متن کاملSimulation of a Recent Regional Windblown Dust Event on the Columbia Plateau
A regional, windblown dust modeling system, developed for the Columbia Plateau PM10 Program (CP), was employed to simulate a regional dust storm that occurred during Sept 23 25, 1999. Observed hourly PM10 concentrations exceeded 1000 ug m at downwind urban receptors and extremely poor visibility due to blowing dust in northeastern Oregon caused a fifty car pile-up with the loss of seven lives. ...
متن کاملWindblown Dust Deposition Forecasting and Spread of Contamination around Mine Tailings
Wind erosion, transport and deposition of windblown dust from anthropogenic sources, such as mine tailings impoundments, can have significant effects on the surrounding environment. The lack of vegetation and the vertical protrusion of the mine tailings above the neighboring terrain make the tailings susceptible to wind erosion. Modeling the erosion, transport and deposition of particulate matt...
متن کاملParticulate matter concentration and air quality affected by windblown dust in the Columbia plateau.
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 objecti...
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ژورنال
عنوان ژورنال: Journal of the Air & Waste Management Association
سال: 2000
ISSN: 1096-2247,2162-2906
DOI: 10.1080/10473289.2000.10464179