Cambridge IGCSE Chemistry · Syllabus 0620 · Chemistry of the Environment
Air Pollutant
What is Air Pollutant?
A substance released into the atmosphere that has an adverse effect on health or the environment. Six are studied at this level: carbon dioxide from complete combustion of carbon-containing fuels; carbon monoxide and particulates from incomplete combustion; methane from decomposition of vegetation and waste gases from animal digestion; oxides of nitrogen from car engines; and sulfur dioxide from combustion of fossil fuels containing sulfur compounds.
This definition is part of the Chemistry of the Environment chapter in Cambridge IGCSE Chemistry.