The document discusses the composition of air and various types of air pollution. It identifies major air pollutants like carbon monoxide, oxides of nitrogen, and sulfur dioxide. Carbon monoxide is produced during incomplete combustion of fuels and binds to hemoglobin in blood. Oxides of nitrogen form at high engine temperatures or during lightning. Sulfur dioxide is released from burning fossil fuels. These pollutants can cause health effects and form acid rain by reacting with water vapor in the atmosphere. Acid rain damages buildings, plants, and aquatic ecosystems.
This is the fourth slideshow in a series for Unit 4 VCE Environmental Science. It discusses the factors contributing to air pollution, the sources and sinks and the human and environmental health effects.
Many forms of atmospheric pollution affect human health
and the environment at levels from local to global. These
contaminants are emitted from diverse sources, and some
of them react together to form new compounds in the air.
Industrialized nations have made important progress toward controlling some pollutants in recent decades, but air quality is much worse in many developing countries, and global circulation patterns can transport some types of pollution rapidly around the world. In this unit, discover the basic chemistry of atmospheric pollution and learn which human activities have the greatest impacts on air quality.
This is the fourth slideshow in a series for Unit 4 VCE Environmental Science. It discusses the factors contributing to air pollution, the sources and sinks and the human and environmental health effects.
Many forms of atmospheric pollution affect human health
and the environment at levels from local to global. These
contaminants are emitted from diverse sources, and some
of them react together to form new compounds in the air.
Industrialized nations have made important progress toward controlling some pollutants in recent decades, but air quality is much worse in many developing countries, and global circulation patterns can transport some types of pollution rapidly around the world. In this unit, discover the basic chemistry of atmospheric pollution and learn which human activities have the greatest impacts on air quality.
What is Air? What is atmosphere ?
Definition of Air Pollution.
Types of Air Pollution.
Sources of Air pollution.
Effects of Air pollution.
Prevention of Air pollution.
Solving Ideas
Conclusion.
This presentation contains
1. types and sources of air pollutants
2. effects of air pollution
3. common devices used to control air pollution
4. pollution control acts in India
5. pollution monitoring bodies in India
This presentation is about Ozone Layer and chemicals known to cause its depletion.
It also covers information about Ozone Hole and Correlation between Ozone depletion and skin diseases due to Ultra Violet light.It also contains no. of ways to limit ozone deterioration.
Chemical reactions and equations 10 chm(1)VeenuGupta8
This presentation is based on the chapter 1 of chemistry .this presentation includes the basic informations related with the chemical Reactions and equations . it will help students and teachers in the teaching learning process
What is Air? What is atmosphere ?
Definition of Air Pollution.
Types of Air Pollution.
Sources of Air pollution.
Effects of Air pollution.
Prevention of Air pollution.
Solving Ideas
Conclusion.
This presentation contains
1. types and sources of air pollutants
2. effects of air pollution
3. common devices used to control air pollution
4. pollution control acts in India
5. pollution monitoring bodies in India
This presentation is about Ozone Layer and chemicals known to cause its depletion.
It also covers information about Ozone Hole and Correlation between Ozone depletion and skin diseases due to Ultra Violet light.It also contains no. of ways to limit ozone deterioration.
Chemical reactions and equations 10 chm(1)VeenuGupta8
This presentation is based on the chapter 1 of chemistry .this presentation includes the basic informations related with the chemical Reactions and equations . it will help students and teachers in the teaching learning process
2. The Atmosphere and the Environment Composition of air Air Pollution 1. Presentation in graphs/charts Identity of air pollutants 2. Experiments which show composition of air Sources/how they are formed Effects Acid rain Equations Equations
3. Composition of air Air is a mixture of several gases, both elements and compounds. Its composition varies from time to time.
6. Only oxygen gas will react with copper upon heating. We know that oxygen gas only constitute 20% of the volume of air. Thus , after the heated copper reacts with oxygen gas, the volume of air will decrease by 20% ( 80% of the volume of air is left. ) Thus, the volume of air left in syringe B is 80% x 200cm3 = 160cm3 Answer: Option C
7. Air pollution Definition : the pollution caused by chemicals in the air that can harm living things or damage non-living things Example - Ozone , O3 Unburnt hydrocarbons Carbon monoxide , CO Oxides of nitrogen , NO , NO2 Sulfur dioxide , SO2
8. Carbon monoxide Properties Poisonous Colourless Odourless Source Incomplete combustion of carbon-containing fuels ; i.e. incomplete combustion of petrol in car engines Effects CO reacts with haemoglobin in blood to form carboxyhaemoglobin. As a result, it cannot transport oxygen to the rest of the body. Headaches, fatigue, breathing difficulties and even death
11. Oxides of nitrogen Produced in 2 ways Due to high temperature in a car engine, the nitrogen present combines with oxygen to form nitrogen monoxide (NO) or nitric oxide, a colourless gas. N2 (g) + O2 (g) 2NO (g) NO (g ) + O2 (g) 2NO2 (g) 2. Heat energy released when lightning strikes. This causes the nitrogen and oxygen to react to form NO and NO2.
12. Sulfur dioxide Source Combustion of fossil fuel e.g. coal , crude oil and natural gas Volcano eruptions Fossil fuel contains sulfur S (s) + O2 (g) SO2 (g)
13. Effects from sulfur dioxide and oxides of nitrogen Eye irritation Lung irritation breathing difficulties Inflammation of lungs bronchitis Both gasses form acid rain Acid rain destroys buildings, plants and aquatic life pH of acid rain ~ 4
14. Forming acid rain SO2 (g ) + H2O (l) H2SO3 (aq) Sulfur dioxide sulfurous acid H2SO3 then slowly reacts with oxygen to form sulfuric acid, H2SO4
17. Effects of acid rain Acid reacts with metals, carbonates in marble and limestone . Recall acids chapter!!! This affects metal bridges and stone buildings Makes lakes and rivers acidic kill fish and other aquatic life. Leaches (dissolves out) important nutrients from the soil plants are destroyed