Hounslow Council


Health effects

Health effects and sources of air pollutants

Pollutant

Sources

Health effects

Nitrogen dioxide

Road transport, domestic boilers, power stations and industry

Irritation to airways

Carbon monoxide

Petrol vehicles, domestic boilers, industry

Deprives the blood of oxygen and can cause headaches, dizziness, nausea. Can lead to death at very high levels

Sulphur dioxide

Power stations, domestic boilers, industr

Coughing, irritation and narrowing of airways. Can make asthma and bronchitis worse

Fine Particulates (PM10)

Road transport (mainly diesels), power stations, domestic boilers

Heart and lung diseases. Can lead to premature death in those already ill. May cause cancer.

Ozone

Produced when sunlight reacts with vehicle exhaust fumes

Irritation to eyes, nose and throat. Can damage lungs and airways

Benzene

Petrol vehicles

Long term exposure can increase risk of cancer

Lead

Petrol vehicles, industry

Can damage children's learning abilities and affect their concentration