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Air Quality Models

CalEEMod Emission Model

CalEEMod version 2011.1.1 calculates criteria pollutant and greenhouse gas (GHG) emissions from a variety of land uses, including residential, commercial, retail, and industrial projects. CalEEMod also calculates the benefits of implementing mitigation measures, including GHG mitigation measures. The program is available for download from the CalEEMod website at: www.caleemod.com.

CALINE 4 California Line Emission Model

CALINE 4 is a dispersion model used to estimate the concentration of CO along roadways and intersections. Contact your District CEQA representative or Download at www.dot.ca.gov/hq/InfoSvcs/EngApps/software.htm

DTIM2 Direct Travel Impact Model

DTIM2 is a model used on large projects to estimate mobile source emissions using data from a transportation demand model. Contact your local Transportation Planning Agency (See GAMAQI, app B).

Motor Vehicle Emission Inventory Model

The Motor Vehicle Emission Inventory Model (MVEI7G) is used to develop mobile source emission inventories for air quality plans and also can be used to estimate emissions from large development plans. Download at: www.arb.ca.gov/msei/mvei/mvei.htm or contact the District.