NOX Emissions (annual average) Emissions Source tons/day Percent Stationary Sources 380 11% Area-wide Sources 98 3% On-Road Mobile 1849 52% Gasoline Vehicles 740 21% Diesel Vehicles 1108 31% Other Mobile 1232 35% Gasoline Vehicles 306 9% Diesel Vehicles 826 23% Other 101 3% Total Statewide 3558 100%