This document discusses air pollution, including its definition, types of pollutants, sources, and health effects. It defines air pollution as physical, chemical, and biological agents that can modify the natural atmosphere. There are primary pollutants emitted directly and secondary pollutants formed from atmospheric reactions between primary pollutants. Outdoor sources include combustion from power plants, vehicles, stoves, and fires. Indoor sources consist of aerosols, dust, refrigerants, and natural sources like wildfires and volcanoes. Pollutants listed are carbon monoxide, chlorofluorocarbons, hydrocarbons, heavy metals, and nitrogen and sulfur oxides. Both short and long term health effects are detailed, ranging from

1. AIR POLLUTION
By,
Tatya Dave
Roll no:28, Bsc tech.

2. Definition:
• It is a broad term applied to all the physical, chemical,
and biological agents that may modify the natural
characteristics of the atmosphere and the environment.

3. Types of air pollutants:
Primary air pollutant Secondary air
pollutant
Ex: CO Ex:formation of ozon
in photochemical
smog
Causes and
effects

4. Out door pollution

5. mechanism of air pollution due to smog:

8. Indoor air pollution sources:
• Anthropogenic sources
• Other anthropogenic sources
• Natural sources
• Contaminants
Anthropological sources:
• combustion-fired powered plants
• Vehicles with internal combustion engine
• Devices powered by two-stroke cycle engines
• Stoves and incinerators especially coal ones.
• Wood fires burning inefficiently.

9. Other anthropological sources:
• Aerosol sprays and
refrigeration.
• Dust and chemicals.
• Military actions like testing of nuclear bombs,poisonous
gases, germ warfare.
• Waste deposition in landfills,which generate methane.

10. Natural sources:
• Dust from natural sources.
• Methane emitted from decomposition
of animals and cattle.
• Smoke and carbon monoxide from wildfires.
• Volcanic activity, producing chlorine, sulphur, and ash
particulates.

11. Contaminants:
• Carbon monoxide.
• Chlorofluorocarbons.
• Hydrocarbons.
• Lead and heavy metals.
• Nitrogen oxides. • Sulphur dioxide.

12. Effects of air pollution on health:
•Short term effects:
Irritation to the eyes,nose and throat.
Upper respiratory infections.
Headache,nausea,and allergic reactions.
Asthma and emphysema

13. •Long term effects:
Chronic respiratory diseases.
Lung cancer.
Heart diseases.
Damage to the brain,nerves,liver or kidneys.
Prevention of damaging effects of air pollution:
• Assessments
• Pollution emission for transportation vehicles and
industry
• Restricting smoking
• Adequate ventilation

16. THANK YOU