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Background Air Quality Modeling Results

CAMx Base 2011 US Background Simulation

We ran a CAMx sensitivity simulation derived from the 3SAQS 2011 Base version A CAMx (CAMx_3SAQS_Base11a) configuration to estimate background air quality in the U.S. The CAMx 2011 U.S. Background simulation (CAMx_3SAQS_Base11a_USBG) is an emissions sensitivity in which all anthropogenic emissions sources in the U.S. are removed. The only emissions included in the USBG simulation include:

  • Canadian and Mexican anthropogenic sources
  • Domain-wide biogenic sources
  • Domain-wide wildfires (prescribed and ag fires are excluded)
  • Domain-wide windblown dust
  • Seasalt
  • Lightning NOx