Water pollution

1. Water pollution
 Prepared by:
-Moncy babu

2. Water pollution
Any chemical, biological, or physical change in water
quality that has a harmful effect on living organisms or
makes water unsuitable for desired uses.

3. Water Pollution
Water Pollution occurs when energy and other
materials are released into the water,
contaminating the quality of it for other users.

4. Different Causes of Water Pollution
 Marine Dumping
 Industrial Waste
 Sewage, mainly
from households

5.  Point sources
 Located at specific places
 drain pipes, ditches, sewer lines
 Easy to identify, monitor, and regulate
 Nonpoint sources
 Broad, diffuse areas (cannot be traced to a single
site of discharge)
 atmospheric deposition, agricultural / industrial /
residential runoff
 Difficult to identify and control
 Expensive to clean up
Sources of Water Pollution

6. Different Causes of Water Pollution
 Nuclear waste
 Oil pollution
 Underground
storage leaks

7. Water Pollution
Point source
Industrial
effluent
Textile Tannery Dyeing Thermal
Municipal
waste
Non-point
source
Agricultural
runoff
Atmospheric

8. Effects on Environment
 Toxic water
 Thermal heating
 Our sources of
water

9. Effects on Humans
 Diseases caused by:
 Drinking
contaminated water
 Swimming in
polluted water
 Contact with
chemically polluted
water

10. Effects on Animals
 200 turtles in Australia’s surround
waters die each year

11. Effects on Animals
 Birds and mammals become
coated with oil

12. What You Can Do

13. Turn off running water

14. Be cautious of what you pour in your
sink/flush down your toilet

15. Fertilize correctly

16. Organize or participate in
a clean up

17. Join a special society devoted to the
prevention of water pollution

18. Spread awareness

19. Thank you….