CO Emissions (annual average) Emissions Source tons/day Percent Stationary Sources 346 3% Area-wide Sources 1974 16% On-Road Mobile 7189 58% Gasoline Vehicles 6883 55% Diesel Vehicles 306 2% Other Mobile 2946 24% Gasoline Vehicles 2225 18% Diesel Vehicles 358 3% Other 363 3% Total Statewide 12456 100%