Temporal and spatial variations of the Vienna aerosol.
For several intensive sampling periods the mass concentration, light extinction, light scattering and light absorption coefficients, and the mass size distribution of the aerosol have been determined at up to eleven location in the non-industrial town of Vienna. Obviously, large variations of the measured values have been found. The following factors influenced the aerosol markedly: wind speed, wind direction, increased aerosol production such as by space heating or traffic and resuspension. Most of the variations in aerosol were found to be caused by these factors. A comparison of the mass concentration and light absorption of the aerosol upwind and downwind of Vienna permitted the estimation of locally produced aerosols: about 50% of the mass of the aerosol and 75% of the light-absorbing aerosol appears to be produced locally.
Institute of Experimental Physics, University of Vienna, Austria.
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Horvath
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Habenreich
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I
Kreiner
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Norek
D000388:Air / Q000032:analysis*; D000392:Air Movements; D000393:Air Pollutants / Q000032:analysis*; D001317:Austria; D006801:Humans; D008027:Light; D009391:Nephelometry and Turbidimetry; D012542:Scattering, Radiation; D012621:Seasons; D013997:Time Factors; D014504:Urban Health; D014919:Wind
D000393:Air Pollutants