acid rain ppt presentation free download

Jul 22, 2014

250 likes | 1.33k Views

General concepts on. ACID RAIN. Tareq Bin Azir Lecturer- Department of Chemistry Government Titumir College Dhaka [email protected]. Contents:. Definition Sources Formation Deposition Affected Areas Effects Preventive Measures. Definition of Acid Rain.

Share Presentation

• acid rain tareq bin
• glacial ice thousands
• particularly susceptible
• remote parts
• sulfuric acid h2so4

Presentation Transcript

General concepts on ACID RAIN Tareq Bin Azir Lecturer- Department of Chemistry Government Titumir College Dhaka [email protected]

Contents: Definition Sources Formation Deposition Affected Areas Effects Preventive Measures

Definition of Acid Rain • Rain water that has a pH of less than that of natural rainwater (<5.6) • It is formed when 1. sulfur dioxide and sulfur trioxide (SO2 ; SO3) 2. nitrogen monoxide and nitrogen dioxide (Nox) gases in the atmosphere, combine with water vapor and precipitate as Sulfuric acid(H2SO4) or Nitric acid(HNO3) • This acidic precipitation then falls to the earth as rain, snow or fog

pH Scale pH = -log[H+]

pH &WATER • Pure water is neutral • Sea water is slightly basic • Normal rainfall is slightly acidic due to carbon dioxide (CO2) mixing with water vapor forming carbonic acid • Acid rain is acidic

Sources of Acid Rain • Natural Sources – • Emissions from volcanoes and 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 globe

Human Sources of Acid Rain • Industrial factories, power-generating plants and vehicles • Sulfur dioxide and oxides of nitrogen are released during the fuel burning process (i.e. combustion) • Sulfur dioxide accounts for about 90 % of all acid rainfall

Formation of Acid Rain

2SO2(g) + O2(g)  2SO3(g) SO3(g) + H2O(l)  H2SO4(aq) Formation of Sulfuric Acid(H2SO4) Formation of Nitric Acid(HNO3) 2NO(g) + O2(g)  2NO2(g) 4NO2(g) + 2H2O(l) + O2(g)  4HNO3(aq)

Acid deposition Wet deposition Wet deposition of acids occurs when any form of precipitation (rain, snow and so on) removes acids from the atmosphere and delivers it to the Earth's surface. This can result from the deposition of acids produced in the raindrops. Dry deposition Acid deposition also occurs via dry deposition in the absence of precipitation. This can be responsible for as much as 20 to 60% of total acid deposition. This occurs when particles and gases stick to the ground, plants or other surfaces.

Effects of Acid Rain • Harmful on aquatic life • Increased acidity in water bodies • Stops eggs of certain organisms (e.g. fish) to stop hatching • Changes population ratios • Affects the ecosystem • Effects on Vegetation • Harmful to vegetation • Increased acidity in soil • Leaches nutrients from soil, slowing plant growth • Leaches toxins from soil, poisoning plants • Creates brown spots in leaves of trees, impeding photosynthesis • Allows organisms to infect through broken leaves

Effects on Buildings and Structures • Marble is particularly susceptible • Accelerates weathering in metal and stone structures • Eg. Parthenon in Athens, Greece; TajMahal in Agra, India • Effects on Human Health • Respiratory problems, asthma, dry coughs, headaches and throat irritations • Brain damage, kidney problems, and Alzheimer's disease has been linked to people eating "toxic" animals/plants

Affected Areas • Acid rain is a problem in Eastern Canada and the Northeastern USA • Acid rain from power plants in the Midwest United States has also harmed the forests of England. • Industrial acid rain is a substantial problem in China, Taiwan, Eastern Europe, Russia and areas down-wind from them. • The effects of acid rain can spread over a large area, far from the source of the pollution

Prevention Using alternative sources of electricity (i.e. nuclear power, hydro-electricity, wind energy and solar energy) Minimize fossil fuel use in power plants, factories, vehicles etc. Reduce the amount of electricity use Energy Conservation & Change life style Use catalytic converters in vehicle exhausts which remove the nitrogen oxides. Limit the number of vehicles on the roads and increase public transport.

• More by User

Acid Rain. What is Acid rain?. http://www.epa.gov/airmarkets/acidrain/index.html#what. Acidity- pH Scale. Sources of SO 2 Emissions in 1992. Total emissions - 22.7 Million tons in 1992. Sources of NO x- 23.2 M tons in 1992.

693 views • 16 slides

Acid Rain. Pure rain is naturally acidic with pH of 5.6 due to dissolved carbon dioxide in water vapor reacting to form carbonic acid( a very weak acid) The environmental pollution called acid rain is any rain with pH less than 5.6.

518 views • 10 slides

Acid Rain. Period 7. Introduction.

876 views • 8 slides

558 views • 5 slides

Acid Rain. First, we need to understand acidity and basicity . This is measured on a scale called the pH scale. pH is a scale from 0 to 14. 0 is about as acidic as it gets, while 14 is about as alkaline as it gets. Pure water has a pH of 7. What is acidity?.

3.9k views • 14 slides

Acid Rain. Sahana Kanabar. How is Acid Rain formed?.

512 views • 9 slides

Acid Rain. By: Erica Choaty. Thesis Statement:. Acid Rain poses devastating effects on humans and the environment. It is not too late for us to lessen its scale of occurrences. We just need to be more cautious of our actions towards how we affect the environment. What is acid deposition?.

535 views • 11 slides

Acid Rain . By Amal Dualeh 7D-Science. What is Acid Rain?. Acid Rain is rainfall that is contaminated with pollution, causing it to have high levels of acid (low pH). What causes Acid Rain?.

400 views • 6 slides

ACID RAIN. By: Acacia Nikiel. What is Acid Rain?. Acid rain is when Acidic gases are evaporated into the air, it gets mixed with rain water from clouds and when the cloud gets heavy it rains but if acidic gases are within the cloud sometimes it could become Acid rain . .

442 views • 7 slides

Acid Rain. By: Kira Bowe. Acid Rain. There are three different types of Acid Rain. Sulphuric Acid. Governments have made efforts since the 1970s to reduce the release of sulfur dioxide into the atmosphere  because of Sulphuric acid rain, which can be harmful.

399 views • 12 slides

Acid Rain. By HO Pui Sing Wong Yu Fai. Content. Definition of Acid Rain Damage of Acid Rain Formation of Acid Rain Sources of Pollutants Solutions References. Definition of Acid Rain. Normal pH value of Rain is 5.6 pH value &lt; 5.6. Acid Rain. Definition:.

1.74k views • 23 slides

Acid Rain. By: Sam and Brianna. What is it?!.

366 views • 17 slides

Acid Rain. Acid rain is basically rain that has a higher than normal acid level (low pH). Causes of Acid Rain. Burning coal. Oil and natural gas in power stations makes electricity, giving off sulphur dioxide gas. Burning petrol and oil in vehicle engines gives off nitrogen oxides as gases.

791 views • 15 slides

Acid rain. By Cory Phillips and Kelsey Sheetka. Where is Acid Rain a problem?.

580 views • 14 slides

Acid Rain. By Ashlee, Phoenix, Ben &amp; Alatise. What is Acid Rain?. Acid rain is rain that has been made acidic by certain pollutants in the air. Acid rain is a type of acid deposition, which can appear in many forms. Like rain, sleet, snow or fog that has become more acidic than normal.

1.34k views • 5 slides

ACID RAIN. ACID RAIN. CaCO 3 ( s ) + H +  CO 2 ( g ) + H 2 O + Ca 2+.

717 views • 50 slides

Acid Rain. 7/8. Sulfur Dioxide. Sulfur dioxide is a reactive gas released by burning fossil fuels, such as coal, that contain sulfur. In the United States, 67% of SO 2 emission comes from electric utilities. Sulfur dioxide is linked to increased asthma symptoms.

611 views • 13 slides

Acid Rain. What is it?. Acid rain is rain, snow or fog that is polluted by acid in the atmosphere and damages the environment. Two common air pollutants acidify rain: sulphur dioxide (SO 2 ) and nitrogen oxide (NO).

583 views • 12 slides

Acid Rain. What is acid rain?. Any ppt →pH value &lt; 5.6 → acid rain. Introduction. 1) Wet deposition → acidic rain, fog + snow a) Rainout: incorporation of materials into cloud drops b) Washout: when materials below the

1.03k views • 26 slides

Acid Rain. All life needs water to survive, but sometimes that water is itself harmful. Acid Rain Objectives. Explain how rain can become acidified Explain the damage done to life and structures by acid rain Design a lab to determine what type of rock is the least affected by acid rain

2.05k views • 30 slides

326 views • 13 slides

Acid Rain. RUSSELL R. DICKERSON. Sandstone portal Figure on Herten Castle in Ruhr district of Germany. Sculpted 1702; photographed in 1908. Same sandstone portal figure photographed in 1969. ACID DEPOSITION See Turco, Ch. 9 Finlayson-Pitts &amp; Pitts, Part 6 Seinfeld &amp; Pandis Ch. 20

376 views • 23 slides

• Preferences

THE ACID RAIN - PowerPoint PPT Presentation

THE ACID RAIN

The acid rain environmental engineer group introduction acid deposition 1. dry deposition - acidic gases and particles 2. wet deposition - acidic rain, fog and snow ... – powerpoint ppt presentation.

• Environmental Engineer Group
• 1. Dry deposition
• - Acidic gases and particles
• 2. Wet deposition
• - Acidic rain, fog and snow
• What is Acid rain?
• - Acid rain is rain, snow or fog that is polluted by acid in the atmosphere and damages the environment.
• a number on a scale of 0 to 14 which shows how acid or alkaline a substance is
• Measure the amount of acid in a liquid like water
• Formula of water H20
• 2 2 hydrogen atoms
• http//www.miamisci.org/ph
• Pour base into water give up OH- to water base
• Normal rain slightly acidic 5.5
• (carbon dioxide dissolves into it)
• In 2000, rain pH 4.3 (in the US)
• http//www.epa.gov/airmarkets/acidrain
• cause by natural phenomena and anthropogenic activities
• is soluble in water
• can be oxidised within airborne water droplets
• producing sulphuric acid
• combustion of fossil fuels
• oxidation of organic material in soils
• volcanic eruptions
• biomass burning
• http//www.temis.nl/products/so2.html
• Sulphur dioxide is an acidic gas
• Easily be made by adding water
• SO2 (g) SO2 (aq)
• SO2 (aq) H2O (l) H2SO3 (aq)
• weakly dibasic acid
• http//www.chm.bris.ac.uk/motm/so2/so2h.htm
• Nitrogen Oxide ( NOx )
• Residential
• commercial furnaces
• electrical-utility boilers
• other equipment
• Critical Loada measure of how much pollution an environment can tolerate
• Target Loadthe amount of pollution that is considered achievable and politically acceptable
• History of Acid Rain
• Major problem area
• Originated during the 1730's
• Discovered in the 1950's
• Started being noticed in the 1960's
• 1984-Germany
• 1988-United Nations
• British Columbia
• United States
• Central Europe
• Virtual Globe http//www.virtualglobe.org/en/info/ env/03/acid06.html
• The acid rain report http//www.angelfire.com/ks3/ acidrainreport/history2.html
• Living Landscapes http//royal.okanagan.bc.ca/mpid wirn/atmosphereandclimate/acidprecip.htmla

PowerShow.com is a leading presentation sharing website. It has millions of presentations already uploaded and available with 1,000s more being uploaded by its users every day. Whatever your area of interest, here you’ll be able to find and view presentations you’ll love and possibly download. And, best of all, it is completely free and easy to use.

You might even have a presentation you’d like to share with others. If so, just upload it to PowerShow.com. We’ll convert it to an HTML5 slideshow that includes all the media types you’ve already added: audio, video, music, pictures, animations and transition effects. Then you can share it with your target audience as well as PowerShow.com’s millions of monthly visitors. And, again, it’s all free.

About the Developers

PowerShow.com is brought to you by  CrystalGraphics , the award-winning developer and market-leading publisher of rich-media enhancement products for presentations. Our product offerings include millions of PowerPoint templates, diagrams, animated 3D characters and more.

Acid Rain (Environmental Science)

Environmental science Module 2 Topic. This PPT is not a work of mine and was provided by our college professor during our graduation, so I am not sure about the original author. The credit goes to the Original author. Read less

More Related Content

• 1. Acid Rain  Acid rain is basically rain that has a higher than normal acid level (low pH). It can have harmful effects on plants, aquatic animal and infrastructure.
• 3. Acid Deposition Wet Deposition Dry Deposition  It refers to acidic rain, fog and snow. If the acid chemicals in the air are blown into areas where the weather is wet, the acid can fall to the form of rain, snow, fog or mist. As this water flow over and through the ground, it affect a variety of plants and animals.  In area where the weather is dry, the acid chemicals may become incorporated into dust or smoke and fall to the ground through dry deposition sticking to the ground, buildings, home, cars, and trees.
• 4. Causes  Burning coal. Oil and natural gas in power stations makes electricity, giving off sulphur dioxide gas.  Burning petrol and oil in vehicle engines gives off nitrogen oxides as gases.  These gases mix with water vapour and rainwater in the atmosphere producing weak solutions of sulphuric and nitric acids – which fall as acid rain.
• 6. a). Effect On Non Living  The Taj Mahal in Agra, suffering from sulphur di oxide, sulphuric acid and other fumes pollutants released from Mathura Refinery.  Acid Rain causes extensive damage to building, statues, bridges, & structural materials of marble, lime stone, etc.
• 7. b). Effect On Living  Effect on Human Health  The sulfur dioxide and nitrogen oxide gases, causes respiratory diseases like asthma, chronic bronchitis, etc.  Tiny Particles cause difficulty in breathing for humans and animals & also lead to permanent lung damage.
• 8. •Effect On Water Animal  Acid Rain increases the acidity of lakes & rivers, which is directly effect the aquatic ecosystem.
• 9. •Effect On Trees & Soil  Acid Rain dissolves all the nutrients and the useful minerals for the tree to grow.  Weakens the process of photosynthesis.  Acc. to modern researches, Acid Rain leaches potassium, calcium, magnesium, etc essential elements from the top of soil & When soil is contaminated, cereal (arable) production crops.  Acids activate aluminium from the soil which leaches into water and fish die. Drinking water is contaminated
• 10. Control Measurement  Fit scrubbers into factory’s chimneys, which are chemical filters that remove impurities such as sulphur from smoke.  Cars can be fitted with special converters which remove dangerous chemicals.  Reduce the amount of electricity we use - turn tv’s off at the mains, don’t leave on standby. - turn off lights when a room is not in use.  Use renewable energy like wind power, solar panels, tidal power, HEP schemes and geothermal energy.  Fit catalytic converters to vehicle exhausts which remove the nitrogen oxides.  Limit the number of vehicles on the roads and increase public transport.

• My presentations

Auth with social network:

Download presentation

We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!

Presentation is loading. Please wait.

Published by Gabriel Hodge Modified over 6 years ago

Similar presentations

Presentation on theme: "Acid Rain."— Presentation transcript:

C1 – Air Quality Revision. What are the Gases? 17/04/2015 The Earth’s Atmosphere Carbon dioxide, water vapourOxygenNitrogenNoble gases Present day atmosphere.

Topic E – Enviro Chemsitry Part 2 – Acid Deposition

Presentation Libor Zouhar. Acid rain.

What are the origins and environmental implications of pollutants in car exhaust gases? By Katie Dowler and Melissa WhiteBy Katie Dowler and Melissa White.

Acids in the Atmosphere - Unit 4C Unit 4.C. 1 Acid Rain.

Biological Buffers. Buffers Allow biological fluids to maintain relatively constant pH despite additions of acids or bases.

4.3: Air pollution by Emily and Josh. Objectives Students should learn: that air can be polluted with smoke and gases, such as sulfur dioxide, which contributes.

Acid rain Dagmar Svobodová Luboš Žák. What is Acid Rain?  it is a result of air pollution  sulphur dioxide and nitrogen oxides react with water in clouds.

Chemistry of Acid Rain How it relates to elements, compounds, and mixtures…

Some of the gases present in our atmosphere dissolve in rain water and cause it to become acidic. Here we will examine some of these.

Air Quality Revision.

ACID RAIN. What is Acid Rain? Rain that has been made acidic by certain pollutants in the air ◦ Forms when nitrogen oxides and sulfur oxides combine with.

Air Pollution and pH. Soil Review How does traditional agriculture differ from modern agriculture? What are the major layers of soil? Where would you.

ACID RAIN. WHAT IS ACID RAIN?? Acid rain describes any form of precipitation with high levels of nitric and sulfuric acids. It can also occur in the form.

Case Studies of Scientific and Technological Issues Nature and Development of Science and Technology.

POLLUTION. 2 POPULATION Billion Billion ( 100 Years) Billion ( 30 Years) Billion ( 15 Years) Billion ( 12.

BY: SAM WALLER Acid Precipitation. What Is Acid Precipitation? Acid precipitation is a phrase used to describe any form of precipitation (rain, snow,

© Oxford University Press 2008 Many power stations burn coal containing sulfur. The sulfur reacts with oxygen and produces acidic sulfur oxides. 5.7 Acid.

Copyright © Marshall Cavendish International (Singapore) Pte. Ltd. Acid Rain Acid rain is formed when acidic air pollutants such as sulphur dioxide.

Acid Deposition. pH Scale 7 is neutral As numbers decrease, acidity increases As numbers increase, alkalinity increases.

About project

© 2025 SlidePlayer.com Inc. All rights reserved.