CMAQ Release Notes: Chemistry: Carbon Bond 6 Mechanism (CB6) with Hazardous Air Pollutants - USEPA/CMAQ GitHub Wiki

Correction to Species Tables for cb6r5hap_ae7_aq

Type of update: Documentation update
Release Version/Date: CMAQ version 5.5
Description See release note under Carbon Bond 6 Mechanism

Multi-Pollutant version of the cb6r5hap_ae7_aq mechanism

William T. Hutzell, U.S. Environmental Protection Agency

Type of update: Science Update and New Feature

Release Version/Date: CMAQ version 5.4

Description The Multi-pollutant version of the cbr6 mechanism replaces the cb6mp_ae6_aq mechanism in version 5.3.3. The new mechanism is based on cb6r5_ae7_aq and is called cb6r5hap_ae7_aq. It includes the same toxic gas and aerosol species as the cb6mp_ae7_aq while adds (1) gas and aerosol reactive tracers for benzo[a]pyrene and (2) nonreactive tracers for PAHs lumped based on their Toxic Equivalency Factors.

Significance and Impact: Users can selectively model a wide range of Hazardous Air Pollutants based on the r5 version of the carbon bond 6 mechanisms in CMAQ 5.4.

Merge Commit	Internal record
Merge for PR#887	PR#887
Merge for PR#731	PR#731
Merge for PR#722	PR#722
Merge for PR#684	PR#684