Air pollution


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Air pollution

  3. 3. WHAT IS AIR POLLUTION??Air pollution is the introduction of chemicals,particulate matter, or biological materials that causeharm or discomfort to humans or other livingorganisms, or cause damage to the naturalenvironment or built environment, into theatmosphere.
  4. 4. TYPES OF AIR POLLUTION There are several main types of air pollution. These include smog, acid rain, the green house effect and hole in the ozone layer. One type of air pollution is the release of particles into the air. Another type of pollution is the release of poisonous gases.
  5. 5. Smog is a type of large scale outdoor pollution. It is caused by chemicalreactions between pollutants derived from different sources.
  6. 6. ACID RAINo It is caused when a pollutantcombines with droplets of water inthe air.o The effects of acid rain on theenvironment can be serious.
  7. 7. EFFECTS OF ACID RAINAcid rain causes acidification of lakes and streams . It contributes to the damage of trees and many sensitive forestsoils.It accelerates the decay of building materials and paints, includingirreplaceable buildings, statues, and sculptures that are part of ournations cultural heritage.
  8. 8. GREEN HOUSEEFFECT It generally comesfrom the build up of carbondioxide gas in the atmosphere. Carbon dioxide isproduced when fuels are burnt. In this type of pollutionsun rays go to the atmosphereand they are trapped by greenhouses gases. So the temperatureon the earth raise.
  9. 9.  It is another result of air pollution. Chemicals released by our activities affect the stratosphere. Release of CFC from heating, aerosol cans , refrigerator equipments remove some of the ozone , causing “ HOLES” .
  10. 10. CAUSES OF AIR POLLUTIONDust raised on the ground during dust storms. Stone dust raised by crushing of stones in quarries.Smoke emitted by vehicles.Smoke from forest fires.
  11. 11.  Smoke raised by burning of coal in powerhouses. Burning of wood, cow dung cakes, garbage etc. Germs from coughing and sneezing.
  12. 12. Some individuals are much more sensitive to polluntants than are others.Air pollution can affect our health in many ways with both short termand long term effects.Many different chemicals in the air affect the human body in negative ways.Older people are highly vulnerable to diseases induced by airpollution. Those with heart or lung disorders are under additional risk.Children and infants are also at serious risk.Air pollutants such as ozone, nitrogen oxides, and sulfur dioxide alsohave harmful effects on natural ecosystems. They can kill plants and treesby destroying their leaves, and can kill animals, especially fish in highlypolluted rivers.
  13. 13. Below are a few efforts that you can make to help clean our air- Car Pool : Forming and implementing a car pool will reduce the number of cars, thereby, preventing air pollution by cutting down the use of fossil fuels. This way, it will help in the sustainable use of fossil fuel and its conservation for the future generations. Vehicle Care : Timely servicing of the car helps to keep it in a good condition, and also minimizes fuel exhaust. Driving the car at an average speed and turning off in traffic are the thumb rules to save fuel. Make sure to use unleaded petrol and opt for regular pollution checking of your car.
  14. 14. Public Transport: Whenever possible, try to travel by public transports. This helpsin two ways; prevents air pollution and increases public income. If you are going to anearby place, go by walking or use a bicycle, instead of using your vehicle. The objective isto minimize the use of fuels as far as possible.Alternative Energy Source: Another effective way to prevent air pollution is touse alternative energy sources such as solar energy, hydroelectric energy, and wind energy.Nowadays, sophisticated technologies such as wind turbine, solar water heaters areintroduced to generate electricity and other energy forms for household uses. Saving Energy: Saving energy will, of course, help to prevent air pollution. Switch off the lights, fans, air conditioners, televisions, and other appliances, when not in use. You can also share a room with others when the air conditioner or fan is on, instead of switching them on in every room.
  15. 15. Minimize Air Pollutants: Always try to minimize smoke emission, as it contributes a lotto air pollution. One way is to compost dried leaves and kitchen waste, instead of burning them.Composting will also give you organic fertilizer for your garden. Other tips include replacing oldwood stoves or gas furnaces, avoiding solvents, and most importantly, do not smoke in the home.Recyclable Materials: Recycling is a simple approach to reduce pollution in two ways;save energy which is required for disposing and minimize the pollutants released duringmanufacturing. The list of recyclable materials include plastic bottles, aluminum cans andutensils, paper, craft papers, cardboard and glass bottles. Smart Purchasing: Remember to carry paper bags and minimize using plastic bags. While buying the products, always choose air-friendly and recyclable products that will minimize the emission of pollutants. Also, shop for only energy-efficient appliances that use less packaging.