what is pollution,types of pollution,causes and effects,how can we reduce the pollution

1. Pollution?
Pollution is the process of making air, water, land or other parts of the environment
dirty and unsafe or unsuitable to use. This can be done through the introduction of a
contaminant into a natural environment, but the contaminant doesn’t need to be
tangible.

2. Air pollution Water
pollution
Thermal
pollution
Land
pollution
Types of pollution

3. Air pollution is the introduction of
particulates, biological molecules, or other harmful materials into the
Earth's atmosphere, causing disease, death to humans, damage to
other living organisms such as food crops, or the natural or built
environment
Air pollution

4. Water pollution
Water pollution refers to the
contamination of water bodies. These may include lakes, rivers, oceans, aquifers and
groundwater.
Major water pollutants-
• Organic contaminants
• Inorganic contaminants
• Solid waste
• Thermal –discharge of warm water by factories

5. Land pollution
Land pollution refers to the deposition of solid
or liquid waste materials on land or underground in a manner that can contaminate the soil and
groundwater, threaten public health, and cause unsightly conditions and nuisances.
sources of land pollution
• Domestic Solid Waste (Garbage, Rubbish, Trash)
• Construction and Demolition Waste
• Agricultural Waste
• Industrial Waste

6. Thermal pollution
Thermal pollutionis the degradation of water
quality by any process that changes ambient water temperature.
A common cause of thermal pollution is the us of water as coolant by power plants and industrial process
When water used as coolant is return to the natural environment at a higher temperature.

7. CAUSES & EFFECTS
Type of Pollution Causes Effects
Air Burning of fossil fuels Draughts, Polluted air resulting in
Asthma and Cancer
Water Industrial waste, Garbage Death of aquatic animals,
Waterborne disease
Land Chemical in soil, waste, pesticide,
deforestation
Plants can’t grow, Soil erosion
Thermal Excess heat from industrial plants Climate change, Extinction of wildlife

8. How can we reduce pollution
• Use 3R’s – Reduce, Reuse and Recycle
• Conserve Energy
• Choose environment friendly appliances
• Keep your automobile well tuned and maintained
• Report illegal dumping
• Use water based paints
• Don’t litter
• Dispose trash properly