Task 7 - SOURCE APPORTIONMENT MODELING/TAGGING
PSAT SOURCE APPORTIONMENT MODELING/TAGGING
Alpine Geophysics was tasked with using 2028 emission inventories developed for the VISTAS project and the CAMx v6.40 air quality model to evaluate regional haze impacts on Class 1 areas from different sources, source categories, and geographical regions. The CAMx model has a source apportionment tool (the PM Source Apportionment Technology tool) that uses reactive tracers to apportion primary PM, secondary PM and gaseous precursors to secondary PM. The tracers may also be called tags. Task 7 evaluated regional haze impacts using over 200 tags for sulfate and particulate nitrate.
PSAT SOURCE APPORTIONMENT MODELING/TAGGING DATA
- Road Map for Reasonable Progress Analysis and PSAT Tagging (pending update on calculations associated with assessment of reasonable progress at certain major sources and evaluation of sources potentially requiring a four-factor analysis)
- PSAT Source Apportionment Results Summary - April 2020
- PSAT Percent Contribution Rankings - April 2020
- PSAT and AOI results were combined.
- PSAT facility contributions were adjusted to account for updated 2028 point emissions and sorted by percent contribution.
PSAT SOURCE APPORTIONMENT MODELING/TAGGING REPORT