Match the pollutant on the left to each characteristic described on the right. Not all terms will be used. Group of answer choices Before the 1980s, gasoline combustion was a major source of this pollutant. [ Choose ] This pollutant's chemical structure is three bonded oxygen atoms. Its concentration is strongly influenced by sunlight levels and air temperature. [ Choose ] A very high percentage of the emissions of this pollutant comes from coal combustion.