1. Meteorological environments
Dr Paul T Francis, MD
Community Medicine
College of Medicine, Zawia

2. Contents
Air pollution
Temperature

3. Air
Man lives in ‘air’
Man breathes air, smells through air, hears through air, air cools his/her body, we can speak through air
Diseases spread through air
Aeroplanes fly through air
Sailing Ship/boat move because of air

4. Composition of air Nitrogen 78% Oxygen 21% Carbon dioxide 0.03%
Argon, xenon, helium, water vapour, dust etc.

5. Air pollution
Excessive concentration of foreign matter in the atmosphere which is harmful to man and other living organisms
Sources of air pollution
Automobiles
Industries
Domestic sources

6. Sources of Air pollution

7. A factory polluting the atmosphere

8. Health effects of air pollution
Immediate
Discomfort, cough, breathlessness, bronchitis, irritation of eye etc.
Long term effects
Chronic bronchitis,
lung cancer, asthma

9. Prevention Containment – Preventing pollutants entering the atmosphere
Replacement – Using technology which does not cause pollution
Dilution – Planting more trees around sources of air pollution
Legislation – Making rules to prevent air pollution

10. Thermal comfort
Effective temperature – is an index which combines temperature, humidity and movement of air
Comfortable and cool – 20-25oC
Hot and uncomfortable – 27-28oC

11. Summary
It is important to have clean air to prevent diseases and remain healthy
Sources of air pollution are industries, automobiles and homes
Air pollution can be prevented by using better techniques to reduce polluting products, planting more trees