Troposphere is the lowest level of the atmosphere, followed by the Thermosphere
Good up High (Ozone is a protective gas in the Stratosphere)
Bad Nearby (Pollutant in the Troposphere)
Incomplete combustion results in the formation of Carbon Monoxide (CO)
Catalytic converters catalyze the conversion of CO to C02 (reduces CO and also reduce VOC)
Sulfur trioxide (SO3) forms corrosive sulfuric acid (H2S04) with water
Sulfur dioxide reacts on the surface of a variety of airborne solid particles (aerosols), is soluble in water and can be oxidized within airborne water droplets, producing sulphuric acid.– (Ash hastens the formation of sulfur trioxide)