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Continental and Global Distribution of PM

Continental and Global Distribution of PM. Global Pattern of Haze Based on Visibility Data Resource Links. Contact: Rudolf Husar, rhusar@mecf.wustl.edu. Global Pattern of Haze Based on Visibility Data.

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Continental and Global Distribution of PM

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  1. Continental and Global Distribution of PM Global Pattern of Haze Based on Visibility Data Resource Links Contact: Rudolf Husar, rhusar@mecf.wustl.edu

  2. Global Pattern of Haze Based on Visibility Data • A rough indicator of PM2.5 concentration is the extinction coefficient corrected for weather conditions and humidity. There are over 7000 qualified surface-based visibility stations. • The June-August haze is most pronounced in Southeast Asia and over Sub-Saharan Africa, where the seasonal average PM2.5 is estimated to be over 50 g/m3. • Interestingly, the industrial regions of the world such as over Eastern North America, Europe and China-Japan exhibit only moderate levels of haze.

  3. Resource Links • Workbook Table of Contents • Comment and Feedback Page • Applications / Reports • Data sets used in the Applications • Methods and tools used in the Applications

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