17. Table 1 TYPES OF POLLUTANTS AND HEALTH EFFECTS Short term respiratory symptoms; irritant effect on lungs & airway inflammation Photochemical pollutant Ozone Cancer (long term effect) Petrol, deisel Rubber tyre Benzene/ Butadiene Intellectual development, poisoning Petrol, paints industry Lead Breathing difficulties, irritation of eyes, nose, throat and lungs. Asthmatics Coal & heavy oil combustion SO2 COHB, Headaches, nausea, dizziness Traffic, fuel, industry CO Respiratory, Cardiovascular Long-term effects? IMR, LBW? Traffic, industry Biomass PM airway irritation; respiratory infection & impaired lung function Vehicles Domestic NO2 HEALTH EFFECTS SOURCES TYPE