logging in or signing up air pollution aryaman29 Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 74 Category: Education License: All Rights Reserved Like it (0) Dislike it (0) Added: January 05, 2011 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... By: leynard.javin (9 month(s) ago) nice Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript Air Pollution: Air Pollution - Presented By: Aryaman Aggarwal IX BTopics to be covered: Topics to be covered Introduction Common Air Pollutants Causes Harmful Effects PreventionINTRODUCTION: INTRODUCTION When air is contaminated by unwanted substances which have a harmful effect on both the living and non-living, it is referred to as AIR POLLUTION . The substances which contaminate the air are called AIR POLLUTANTS .COMMON AIR POLLUTANTS: COMMON AIR POLLUTANTS Carbon Monoxide (CO) Sulphur Dioxide (SO 2 ) Oxides of Nitrogen (NO x’ ) Dust and Soot Chlorofluorocarbons (CFCs) Chemical Fumes Methane (NH 4 )CAUSES: CAUSES Human activities Natural phenomena – for eg. volcanic eruptions. Motor vehicles Thermal power plants, industries Indoor air pollution Suspended particulate matter (SPM)HARMFUL EFFECTS: HARMFUL EFFECTS It is estimated that every year some 4,50,000 additional deaths take place in the world due to SPM related air pollution problems. CFCs used in refrigerators cause depletion of the ozone layer.HARMFUL EFFECTS: HARMFUL EFFECTS Chemicals produced by industries escape into the atmosphere. For example, the emissions from the oil refinery at Mathura and the numerous coal-burning industries at Agra contain Sulphur dioxide (SO 2 ), which cause acid rain responsible for damaging the marbles of Taj Mahal.Slide 8: Schematic drawing, causes and effects of air pollution: (1) greenhouse effect, (2) particulate contamination, (3) increased UV radiation, (4) acid rain, (5) increased ozone concentration, (6) increased levels of nitrogen oxidesPREVENTION: PREVENTION Plant trees and nurture the ones already present in the neighbourhood. Switch to alternative fuels instead of the fossil fuels for energy requirements. These could be: solar energy, hydropower and wind energyPREVENTION: PREVENTION “Say no to crackers” at Diwali. Switch to fuels like CNG and unleaded petrol. These measures have resulted and will result in cleaner air.THE END !: THE END ! You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
air pollution aryaman29 Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 74 Category: Education License: All Rights Reserved Like it (0) Dislike it (0) Added: January 05, 2011 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... By: leynard.javin (9 month(s) ago) nice Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript Air Pollution: Air Pollution - Presented By: Aryaman Aggarwal IX BTopics to be covered: Topics to be covered Introduction Common Air Pollutants Causes Harmful Effects PreventionINTRODUCTION: INTRODUCTION When air is contaminated by unwanted substances which have a harmful effect on both the living and non-living, it is referred to as AIR POLLUTION . The substances which contaminate the air are called AIR POLLUTANTS .COMMON AIR POLLUTANTS: COMMON AIR POLLUTANTS Carbon Monoxide (CO) Sulphur Dioxide (SO 2 ) Oxides of Nitrogen (NO x’ ) Dust and Soot Chlorofluorocarbons (CFCs) Chemical Fumes Methane (NH 4 )CAUSES: CAUSES Human activities Natural phenomena – for eg. volcanic eruptions. Motor vehicles Thermal power plants, industries Indoor air pollution Suspended particulate matter (SPM)HARMFUL EFFECTS: HARMFUL EFFECTS It is estimated that every year some 4,50,000 additional deaths take place in the world due to SPM related air pollution problems. CFCs used in refrigerators cause depletion of the ozone layer.HARMFUL EFFECTS: HARMFUL EFFECTS Chemicals produced by industries escape into the atmosphere. For example, the emissions from the oil refinery at Mathura and the numerous coal-burning industries at Agra contain Sulphur dioxide (SO 2 ), which cause acid rain responsible for damaging the marbles of Taj Mahal.Slide 8: Schematic drawing, causes and effects of air pollution: (1) greenhouse effect, (2) particulate contamination, (3) increased UV radiation, (4) acid rain, (5) increased ozone concentration, (6) increased levels of nitrogen oxidesPREVENTION: PREVENTION Plant trees and nurture the ones already present in the neighbourhood. Switch to alternative fuels instead of the fossil fuels for energy requirements. These could be: solar energy, hydropower and wind energyPREVENTION: PREVENTION “Say no to crackers” at Diwali. Switch to fuels like CNG and unleaded petrol. These measures have resulted and will result in cleaner air.THE END !: THE END !