logging in or signing up Acid Rain (((((navleen5875 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: 215 Category: Education License: All Rights Reserved Like it (1) Dislike it (0) Added: May 31, 2011 This Presentation is Public Favorites: 0 Presentation Description acid rain is formed when sulphur dioxides and nitrogen oxides, as gases or fine particles in the atmosphere, combine with water vapour and precipitate as sulphuric acid or nitric acid in rain, snow, or fog. tags Effects of Acid Rain , Lesson , Prevention , Atmosphere , Lesson , Winter , Buffers , Chemical reaction , Chemistry , Pollution ,Air pollution , Climate change , El Salvador , Smog , Lesson , Nitrogen cycle , Science , SNC 1D1 , Acid Comments Posting comment... By: (((((navleen5875 (12 month(s) ago) http://navleensingh.blogspot.com/ Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript Slide 1: NAVLEEN SINGH SANDHU VIIth BContents: Contents Definition Causes Formation Affected Areas Effects Remedial MeasuresDefinition of Acid Rain: Definition of Acid Rain Precipitation that has a pH of less than that of natural rainwater (which is about 5.6 due to dissolved carbon dioxide). It is formed when sulphur dioxides and nitrogen oxides, as gases or fine particles in the atmosphere, combine with water vapour and precipitate as sulphuric acid or nitric acid in rain, snow, or fog.Causes of Acid Rain: Causes of Acid Rain Natural Sources Emissions from volcanoes and from biological processes that occur on the land, in wetlands, and in the oceans contribute acid-producing gases to the atmosphere Effects of acidic deposits have been detected in glacial ice thousands of years old in remote parts of the globeCauses of Acid Rain: Causes of Acid Rain The principal cause of acid rain is from human sources Industrial factories, power-generating plants and vehicles Sulphur dioxide and oxides of nitrogen are released during the fuel burning process (i.e. combustion) MSN EncartaFormation of Acid Rain: Formation of Acid RainFormation of Acid Rain: Formation of Acid Rain When water vapour condeses, or as the rain falls, they dissolve in the water to form sulphuric acid (H 2 SO 4 ) and nitric acid (HNO 3 ). While the air in cleaned of the pollutants in this way, it also causes precipitation to become acidic, forming acid rainEffects of Acid Rain: Effects of Acid Rain MSN Encarta http://abacus.bates.edu/~ganderso/biology/bio270/clover_leaf_burns_pH2_30d.gifEffects of Acid Rain: Effects of Acid Rain Harmful to aquatic life Increased acidity in water bodies Stops eggs of certain organisms (e.g. fish) to stop hatching Changes population ratios Affects the ecosystemEffects of Acid Rain: Effects of Acid Rain Harmful to vegetation Increased acidity in soil Leeches nutrients from soil, slowing plant growth Leeches toxins from soil, poisoning plants Creates brown spots in leaves of trees, impeding photosynthesis Allows organisms to infect through broken leavesEffects of Acid Rain: Effects of Acid Rain Affects human health Respiratory problems, asthma, dry coughs, headaches and throat irritations Leeching of toxins from the soil by acid rain can be absorbed by plants and animals. When consumed, these toxins affect humans severely. Brain damage, kidney problems, and Alzheimer's disease has been linked to people eating "toxic" animals/plants.Preventive Measures: Preventive Measures Reduce amount of sulphur dioxide and oxides of nitrogen released into the atomosphere Use less energy (hence less fuel burnt) Use cleaner fuels Remove oxides of sulphur and oxides of nitrogen before releasing Flue gas desulphurization Catalytic ConvertersPreventive Measures: Preventive Measures Use cleaner fuels Coal that contains less sulphur "Washing" the coal to reduce sulphur content Natural Gas Remedial Measures: Remedial Measures Use other sources of electricity (i.e. nuclear power, hydro-electricity, wind energy, geothermal energy, and solar energy) Issue of cost http://upload.wikimedia.org/wikipedia/commons/4/4e/Nuclear_Power_Plant_Cattenom.jpgReducing the effects of Acid Rain: Reducing the effects of Acid Rain Liming Powdered limestone/limewater added to water and soil to neutralize acid Used extensively in Norway and Sweden Expensive, short-term remedyThank You: Thank You NAVLEEN SINGH SANDHU VIII th B 13Slide 17: Acidic particles and vapours are deposited via two processes - wet and dry deposition. Wet deposition is acid rain, the process by which acids with a pH normally below 5.6 are removed from the atmosphere in rain, snow, sleet or hail. Dry deposition takes place when particles such as fly ash, sulphates, nitrates, and gases (such as SO 2 and NO), are deposited on, or absorbed onto, surfaces. The gases can then be converted into acids when they contact water. [[ continued: ]] You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
Acid Rain (((((navleen5875 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: 215 Category: Education License: All Rights Reserved Like it (1) Dislike it (0) Added: May 31, 2011 This Presentation is Public Favorites: 0 Presentation Description acid rain is formed when sulphur dioxides and nitrogen oxides, as gases or fine particles in the atmosphere, combine with water vapour and precipitate as sulphuric acid or nitric acid in rain, snow, or fog. tags Effects of Acid Rain , Lesson , Prevention , Atmosphere , Lesson , Winter , Buffers , Chemical reaction , Chemistry , Pollution ,Air pollution , Climate change , El Salvador , Smog , Lesson , Nitrogen cycle , Science , SNC 1D1 , Acid Comments Posting comment... By: (((((navleen5875 (12 month(s) ago) http://navleensingh.blogspot.com/ Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript Slide 1: NAVLEEN SINGH SANDHU VIIth BContents: Contents Definition Causes Formation Affected Areas Effects Remedial MeasuresDefinition of Acid Rain: Definition of Acid Rain Precipitation that has a pH of less than that of natural rainwater (which is about 5.6 due to dissolved carbon dioxide). It is formed when sulphur dioxides and nitrogen oxides, as gases or fine particles in the atmosphere, combine with water vapour and precipitate as sulphuric acid or nitric acid in rain, snow, or fog.Causes of Acid Rain: Causes of Acid Rain Natural Sources Emissions from volcanoes and from biological processes that occur on the land, in wetlands, and in the oceans contribute acid-producing gases to the atmosphere Effects of acidic deposits have been detected in glacial ice thousands of years old in remote parts of the globeCauses of Acid Rain: Causes of Acid Rain The principal cause of acid rain is from human sources Industrial factories, power-generating plants and vehicles Sulphur dioxide and oxides of nitrogen are released during the fuel burning process (i.e. combustion) MSN EncartaFormation of Acid Rain: Formation of Acid RainFormation of Acid Rain: Formation of Acid Rain When water vapour condeses, or as the rain falls, they dissolve in the water to form sulphuric acid (H 2 SO 4 ) and nitric acid (HNO 3 ). While the air in cleaned of the pollutants in this way, it also causes precipitation to become acidic, forming acid rainEffects of Acid Rain: Effects of Acid Rain MSN Encarta http://abacus.bates.edu/~ganderso/biology/bio270/clover_leaf_burns_pH2_30d.gifEffects of Acid Rain: Effects of Acid Rain Harmful to aquatic life Increased acidity in water bodies Stops eggs of certain organisms (e.g. fish) to stop hatching Changes population ratios Affects the ecosystemEffects of Acid Rain: Effects of Acid Rain Harmful to vegetation Increased acidity in soil Leeches nutrients from soil, slowing plant growth Leeches toxins from soil, poisoning plants Creates brown spots in leaves of trees, impeding photosynthesis Allows organisms to infect through broken leavesEffects of Acid Rain: Effects of Acid Rain Affects human health Respiratory problems, asthma, dry coughs, headaches and throat irritations Leeching of toxins from the soil by acid rain can be absorbed by plants and animals. When consumed, these toxins affect humans severely. Brain damage, kidney problems, and Alzheimer's disease has been linked to people eating "toxic" animals/plants.Preventive Measures: Preventive Measures Reduce amount of sulphur dioxide and oxides of nitrogen released into the atomosphere Use less energy (hence less fuel burnt) Use cleaner fuels Remove oxides of sulphur and oxides of nitrogen before releasing Flue gas desulphurization Catalytic ConvertersPreventive Measures: Preventive Measures Use cleaner fuels Coal that contains less sulphur "Washing" the coal to reduce sulphur content Natural Gas Remedial Measures: Remedial Measures Use other sources of electricity (i.e. nuclear power, hydro-electricity, wind energy, geothermal energy, and solar energy) Issue of cost http://upload.wikimedia.org/wikipedia/commons/4/4e/Nuclear_Power_Plant_Cattenom.jpgReducing the effects of Acid Rain: Reducing the effects of Acid Rain Liming Powdered limestone/limewater added to water and soil to neutralize acid Used extensively in Norway and Sweden Expensive, short-term remedyThank You: Thank You NAVLEEN SINGH SANDHU VIII th B 13Slide 17: Acidic particles and vapours are deposited via two processes - wet and dry deposition. Wet deposition is acid rain, the process by which acids with a pH normally below 5.6 are removed from the atmosphere in rain, snow, sleet or hail. Dry deposition takes place when particles such as fly ash, sulphates, nitrates, and gases (such as SO 2 and NO), are deposited on, or absorbed onto, surfaces. The gases can then be converted into acids when they contact water. [[ continued: ]]