PM2.5 Emissions (annual average) Emissions Source tons/day Percent Stationary Sources 83 12% Area-wide Sources 450 66% On-Road Mobile 66 10% Gasoline Vehicles 22 3% Diesel Vehicles 43 6% Other Mobile 81 12% Gasoline Vehicles 29 4% Diesel Vehicles 41 6% Other 11 2% Total Statewide 680 100%