1. Water pollution
By lily

2. Introduction
Main content
causes effects solutions
• nature • ecosystem • industry
• people • human • agriculture
• daily life
Conclusion
overview

3. Introduction
Increasing population
Precious water

4. Causes
----nature
Factors including fallen leaves, lava and ash
Feature----inevitable
An example of Yellow River

5. Causes
------- people
Industry
Agriculture Poison material
Daily use

6. Effects
-----ecosystem
Change the composition  break the ecological balance

7. Effects
------------ human
The amount of water can be used decrease
Cause disease
an example in Japan

8. Solutions
-------industry
utilizing laws to monitor the discharge of sewage
having a strict standard for the enterprises that produce sewage
paying more attention on the water treatment
establishing abundant sewage treatment plants
trying the best to decrease the cost of sewage treatment

9. Solutions
--------agriculture
improving the means of production
•taking sprinkling and trickle irrigation instead of flooding irrigation
inviting some technical support engineer
•how to reasonably use chemical fertilizers is doable choice

10. Solutions
------daily life
pay more attention on small things
•trying to use washing powder without the phosphorus

11. Conclusion

12. Reference:
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2.Warren, Charles E.(1970). Biology and water pollution. Retrieved fromhttp://eric.ed.gov
3. Goal,P.K. (1984). Chemical and biological methods for water pollution studies. Retrived
fromhttp://www.getcited.org/pub/102436559
4.Serban, M. (2006). Primary cause of wear pollution. Physical geography. 27,4. Retrieved
from http://search.proquest.com/docview/289192479/Record/138642D79A62D509BB5/1?
accountid=15182.
5.Qian, Y & Wu, Mei. (June25, 2006). Analysis on water pollution features and cause
leading to pollution in Shuimo River. Journal of safety and environment. 6,3,4/112.
Retrieved from http://search.proquest.com/docview/290266241/13864365DCF23701F/3?
accountid=15182.
6.Qian, Yi. (2011). Forcasting and warning the accidental water pollution effect based on
the EFDC and WASP. Resources and environment in the Yantza Basin. 20,8. Retrieved
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15182

13. Thank you!