A rating of the major air pollutants and their sources by effect.
D000336:Aerosols; D000397:Air Pollution; D002248:Carbon Monoxide; D006838:Hydrocarbons; D009589:Nitrogen Oxides; D010087:Oxides; D013455:Sulfur
D000336:Aerosols; D006838:Hydrocarbons; D009589:Nitrogen Oxides; D010087:Oxides; D013455:Sulfur; D002248:Carbon Monoxide