pollutant : sulphur dioxide

Source:  It is produced by burning fossil fuels ( e.g. fuel oil and coal ) . A large proportion is produced by power stations and meyal smeters which burn sulphur-containing coal , and also by the manufacturing industries which burn fuel oil .

Hazardous to health:  sulphur dioxide is a colourless , toxic gas with a sharp , acidic odour . It causes damage to respiratory system and increase in asthma attacks .