AirWare   On-line Reference Manual

  Release Level 5.4
  Release Date 2008 10
  Revision Level 1.0

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


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