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Regional Scale Air Dispersion Modeling For Hazardous And Toxic Air Pollutants In The Treasure Valley

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The first objective is to develop and strengthen the IDEQ Air Program's newly established Monitoring, Modeling and Emissions Inventory (MMEI) group and establish in-house capability to perform regional scale modeling utilizing the Community Multiscale Air Quality Model (CMAQ).

The second objective is to analyze the hazardous air pollutants in the Treasure Valley through regional scale air dispersion modeling. With technological advances in the modeling field, as well as more recent and accurate emission inventory data, air dispersion modeling can now be accomplished on the regional scale. The National Scale Air Toxics Assessment shows that the Boise area may have elevated risk from hazardous and toxic air pollutants (HAP/TAP). DEQ must perform its own more refined modeling to confirm the NATA risk numbers and determine the contributing sources (e.g. gas stations, automobiles, industry, etc). All air quality modeling will be done in-house at DEQ, which will increase the capabilities of DEQ modelers.

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