Causes of air pollution - Defra, UK
https://uk-air.defra.gov.uk/air-pollution/causesDownload a detailed list of the above pollutants - What are the causes of Air Pollution (PDF 139KB). Historically, the main air pollution problem in both developed and rapidly industrialising countries has typically been high levels of smoke and sulphur dioxide emitted following the combustion of sulphur-containing fossil fuels such as coal, used for domestic and industrial …