presentation on water pollution

1. BCT-358
OO316100413
Mohammad Azad Khan
Water pollution

2. Importance of water
• Supportive external environment for aquatic
organisms
• Cellular medium within which biochemical
reactions can occur
• Transport medium for food, oxygen, and other
things needed by cells
• Water is used as a nourisher of plant and
animal life

3. Distribution of water
• 97.200% salt water in the oceans
• 02.014% ice caps and glaciers
• 00.600% groundwater
• 00.009% surface water
• 00.005% soil moisture
• 00.001% atmospheric moisture
Source- ^ Jump up to: a b United States Geological Survey (USGS), Denver, CO (1998). "Ground Water and Surface Water: A Single
Resource." Circular 1139.

4. Sources of water pollution
• Point Sources – A single definable source of
the pollution, e.g. a factory, a sewage plant,
etc. Point-source pollution is usually
monitored and regulated.
• Non-point sources – No one single source, but
a wide range of sources, e.g. runoff from
urban areas, or farmland. Non-point sources
are much more difficult to monitor and
control.

5. Effects of water pollution
• Acid rain
• Eutrophication
• Biological magnification

6. Case study of Ganga River
• Introduction
• Previous Studies
• Present Situation
• Cleaning Efforts
• Conclusions and Lessons learnt

7. Introduction
• History
• Religious aspects
• Properties

8. Previous studies
• Lakshmi Narayanan (1965)
• Saxena et.al. (1966)
• Chandra (1981)

9. Present situation
• Pollution
• Sewage waste
• Half burnt bodies
• Coliform level

10. Cleaning efforts
• Ganga Action Plan (1985)
• National River Ganga Basin Authority (2009)
• Supreme court of india

11. Lesson learnt and Conclusion
• The most important lesson learned is the need
for control of pathogenic contamination.
• Roger Rosenblatt

12. Please save water, if you see anyone
polluting or wasting water, stop them
and make the world a better place.

13. References
• [1]- https://en.wikipedia.org/wiki/Water_pollution#/media/File:Canal-pollution.jpg
• [2]- https://en.wikipedia.org//Water_pollution/_Angra_dos_de_Janeiro_Brazil_Brels.JPG
• [3]- http://oceanservice.noaa.gov/education/kits/pollution/04nonpointsource.html
• [4]- https://www.ec.gc.ca/eau-water/default.asp?lang=En&n=6A7FB7B2-1
• [5]- https://en.wikipedia.org/Acid/File:Cloud_formation_from_refinery_in_Curacao.jpg
• [6]- https://en.wikipedia.org/wiki/Eutrophication#/media/File:Potomac_green_water.JPG
• [7]- https://en.wikipedia.org/wiki/Biomagnification#/media/File:Biomagnification.svg
• [8]- http://www.thehindu.com/news/national/pollution-in-ganga-claims-more-lives-than-bomb-blasts-
advani/article2356324.ece
• [9]- http://eschooltoday.com/pollution/water-pollution/what-is-water-pollution.html
• [10]- http://www.eoearth.org/view/article/156920/
• [11]- China says water pollution so severe that cities could lack safe supplies". Chinadaily.com.cn. June 7,
2005.
• [12]- Schueler, Thomas R. "Microbes and Urban Watersheds: Concentrations, Sources, & Pathways."
Reprinted in The Practice of Watershed Protection. 2000. Center for Watershed Protection. Ellicott City,
MD.
• [13]- West, Larry (2006-03-26). "World Water Day: A Billion People Worldwide Lack Safe Drinking Water".
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