EVS 205 Lecture Notes - Sulfur Dioxide, Advection, Nitrogen Dioxide
12 Mar 2014
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Document Summary
Pollutant sources: sources of air pollutants, major source: industrial plants. Aerosols: small particles suspended in atmosphere, primary aerosols (dust, smoke, ect. , secondary aerosols (smog and sulfate aerosols from factories, sulfur gas sulfuric acid sulfate aerosols. Pollution transport: receptor site: location where pollution ends up (ex: la, grand canyon, how do we trace non-point pollutant sources, temperature inversions. Local atmosphere stability: determines the rate of vertical mixing and dilution. Winds: control the distance pollution can travel areas that will be affected. Downwind = higher concentrations; upwind = none: pollutant sources can be miles away from where advective winds transport material, ultimately, the transport of the pollutants depend upon: Advection and long-range transport: horizontal motion of the atmosphere, responsible for long-range transport of pollutants downwind from sources. Smog: urban air pollution, 1905: smog was coined by dr. harold antoine des voeux, examples, london (1952): temperature inversion capped city and 4,000 deaths due to smoke, sulfurous particles and soot.
