Some VOCs cause eye and skin irritation, headaches or nausea, while some are classed as carcinogens. Ozone Formed from nitrogen oxides and hydrocarbons in sunny conditions. These chemicals are released by motor vehicles and industry. Ozone attacks the tissue of the throat and lungs and irritates the eyes. Lead Exhaust gases from motor vehicles that use leaded petrol, smelters.
Particles containing lead in the air can enter the lungs.
The lead can then be absorbed into the blood stream. Over a period lead can affect the nervous system and the body's ability to produce blood. Particles Motor vehicles, burning of plant materials, bushfires. May cause breathing difficulties and worsen respiratory diseases. Some particles contain cancer-producing materials.