Polllution ppt


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Pollution PPT

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Polllution ppt

  1. 1. Welcome
  2. 2. Pollution Presented by : Dinesh L.Takalakar. 28 Sep 2013
  3. 3. Introduction. • What is Pollution • Different types of Pollution • Sources of Pollution • Effects of Pollution • Measure controls
  4. 4. What is Pollution? Defination: When harmful Substances Contaminating the Environment is Called Pollution OR Pollution is anything which harms the environment in any way  Pollution refers to the very bad condition of environment.
  5. 5. Different Types Of Pollution. Air Pollution Water Pollution Noise/Sound Pollution Soil Pollution Pesticides pollution Radio active Pollution
  6. 6. Introduction Of Air Pollution Any visible or invisible particle or gas found in the air that is not part of the original, normal composition. Air pollution is the most harmful form of pollution. It is increases day by day. Indicates whether pollutant levels in air may cause health concerns. Sulphur oxide, Notrogen oxides & Carbon monooxides are majorPollutant.
  7. 7. What is Smog Smog (Smoke + Fog=Smog) It is Combination of smoke and fog Forms when heat and sunlight react gases (photochemical smog) Occurs often with heavy traffic, high temperatures, and calm winds
  8. 8. Air pollution also responsible for Acid rain. Sulphur dioxide, hydrogen sulphide, Nitrogen oxides togather they form Acid Rain Acid rain are great threat to british environment. Acid rain are carried away from wind to another place
  9. 9. Sources of Air Pollution High Proportion of undesirable Gases, such as sulphur dioxide and carbon monoxide which are released by Industries. Gases released by vehicles Man-made coal, wood and other fuels The pollution also accure by naturally By Volcano & jungle fire Garbage Cigarette smoking Radio active elements Crackers also causes Air pollution.
  10. 10. Effect of Air pollution Smog related deaths were in London in 1873; were total 500 peoples was died Causes respiratory problems and bronchial related deaths Carbon monoxide from automobiles emissions can cause headache at low levels andeven death at higher levels Acid rain affects on aquatic life & other living organisms
  11. 11. Control Measures To reduce emission of nitrogen oxides water should use in combustion system Avoid using and use electric stoves Do not Burst Crackers Learn more; stay up to date Use bio gas on the place of coal for coocking Use LPG in vehicles Ride your bycicle Make sure your parents get pollution checks on their cars By adopting cleaner tecnologics Plant more Trees.
  12. 12. Water Pollution
  13. 13. What is Water Pollution?  Presence of harmful substances & toxic materials in water known as ‘Water Pollution’  Water is a precious natural resource.  Water Pollution is Caused by organic and inorganic industrial wastes and effluents discharged into rivers.  Water pollution affects plants and organisms living in these bodies of water. In almost all cases the effect is damaging not only to individual species and populations, but also to the nature biological communities.  About 40% of Deaths worldwide are caused by Water Pollution
  14. 14. Sources Of Water Pollution  Sewage & other waste: Sewage are waterborne waste derived from home(domestic waste) & animals or food processing plants.  It includes human excreta, paper,cloth, soap, detergents etc.  Industrial effluents: A wide variety of both inorganic & organic pollutants are present in effluents from dying textiles, parer & pulp mills, steel idustries, mining corporation etc.  The pollutants includes oils, greases, plastics, metalic wastes, heavy metals, phenols, toxins, acid, dyes DDT etc.  About 180 mollion liters of toxic effluents are discharged into the Periyar river every day by the industrial units in greater Cochin area.
  15. 15. Agricultural waste:  These includes chiefly chemicals used as fertilizers & pesticides used in disease control.  They reaches to water bodies along with irrigation, rainfall, drainage. Sea accidents:  Accidents which happen in seas due to this marine water life also disturbed.
  16. 16. Effects Of Water Pollution. About 40% of Deaths worldwide are caused by Water Pollution People are getting diseases like Cholera, Typhoid, Diarrhoea etc. Aquatic life gets disturbed & hence it affects on human health. Water pollution also affects the marine food chain. Fresh water is not available.
  17. 17. Control Measures • Rivers should not be used for washing clothes or bathing animals in. • Harvesting of Rainwater to meet water requirements. • Dams & embankments must be created. • The rivers must not be contaminated. • In sacred river like Ganga the dead bodies shouldn’t thrown.
  18. 18. Noise Pollution
  19. 19. What Is Noise/Sound Pollution • Noise pollution is defined as unwanted sound which originates from human activities & which is harmful to us & other living organisms. • What is the difference between sound and noise • In simple terms, noise is unwanted sound. Noise pollution is very harmful for ears. • Sound is a form of energy which is emitted by a vibrating body and on reaching the ear causes the sensation of hearing through nerves. • Noise pollution is very harmful for ears.
  20. 20. • The noise originates from human activities, especially the urbanization and the development of transport and industry. • The sound is pleasant or not depends upon its loudness, duration, rhythm • Two basic properties of sound are (i)loudness & (ii)frequency. • Today all cities are becoming noisy places. • The strength of sound measured in term of decible (db).(deci = 10 & bel after the name of Scientist, A. Graham bell) • The movement against noise pollution is weak in India. Most of the people do not consider it a pollutant, and take it as a part of routine life.
  21. 21. Sources Of Noise pollution • Transportation:- aircraft ,bus,trains ,cars traffic jams vehicles’ blowing horn. • Special events:-Loudspeakears • Machines in factories produce a lot of sound. • Loudspeaker, used in functions & meetings. • Air craft Noise • Noise from construction and civil engineering works. • Railway engines. • Festival ‘s noise: Fire crackers • Loud noise in houses: T.V ,Tape recorder,
  22. 22. Effects Of Noise pollution. Noise pollution can cause hearing loss & deafness Sleep Disturbance Noise also causes visual disturbance Lack in concentration Heavy feelings Irritated feelings Headaches Increase in heart beats was found amongst industrial workers in Russia. Noise also affects on patients
  23. 23. Controll Measures Air ports must be away from residential area. Hospitals & School Colleges declared as Silent Zones. The Government should ensure the new machines that Should be noise proof. Pleasant Home Sound affects our ears so loud noise should be avoided.
  24. 24. References • Google.com • Environmental Biology & Biotechnology book • http://edugreen.teri.in/explore/air.htm • http://www.oneworld.net/penguin/pollution/pollution_home.html • http://www.rcc.org/oem/aqindex.html • http://www.tnrcc.state.tx.us/air/monops/lessoms/mathlesson.html • Environmental pollution book
  25. 25. Thank you