Air Pollution:
primary pollutants: Those compounds and elements that directly pollute the
air on its liberation. Examples include, the dust, Bad smells, Nitrogen, the compounds of Oxygen, Halogen and radio-active elements etc.
secondary pollutants: Those factors and compounds that indirectly affect the quality of air to be polluted such as, formaldehyde, peroxyle, acetyle nitrate etc.
Sources of air pollution:
- Natural sources:
- Artificial sources:
Effects of air pollution:
- Reduction in visibility
- Reduction in solar radiation
- Green House effect
- Inhibition in biological growth of plants
- Adverse effect on human health
- Depletion of Ozone layer (Due to: CFC, CHCl3, CCl4, CH3Br)
- Acid rain
- Destruction of historical monuments
- Change in climate
Water Pollution:
Sources of water pollution:
- Sewage water
- Contaminated water from the industries
- Agricultural wastes
- Obstruction in flow of water
- Oily pollution
- Heat
- Radioactive substances
Soil Pollution:
sources of soil pollution:
- Domestic wastes
- Excessive use of pesticides
- Industrial wastes
- Use of chemical fertilizers
- Municipal wastes
- Acid rain
Conservation of natural resources and their well management is required to reduce the pollution and adopt the sustainable development process.