AirWare
air quality assessment & management
Reference and User Manual
     
      AirWare   On-line Reference Manual
        Release Level 6.2 preliminary
        Release Date 2013 XX
        Revision Level under revision
      Last modified on:   Thursday, 19-Dec-13 17:54 CET

      Simulating Particulates

      AERMOD

      For the calculation of particulates (PM10) AERMOD uses
      • the fraction of particle mass emitted in the fine class, less than 2.5 microns,
      • the representative mass mean particle diameter in microns.
      The following default values are applied:

      1. If no PM2.5 emissions are specified for a source, the default value of m(PM2.5)/m(PM10) = 0.4 is used.

      2. Default value for mass mean particle diameter for PM2.5 (fine fraction): Dmm(PM2.5) = 2.0

      3. Default value for mass mean particle diameter for PM10 (coarse fraction) without PM2.5: Dmm(PM10-PM2.5) = 7.5

      4. Using the default value of m(PM2.5)/m(PM10) (0.4)leads to a default average particle diameter Dmm(PM10) = 5.3

      CAMx

      A location setup default parameter is used to define the PM10/2.5 ratio (global default)


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