causes of air pollution
TRANSCRIPT
Starter Activity
1. What is Global Warming?
2. What is the full form of CNG?
3. Name any two causes of Global Warming.
4. Name any two ways to stop Global Warming?
What is Air Pollution?
Air pollution is the introductionofharmful materials intothe Earth's atmosphere, causingdamage, disease or death to humans,animals,vegetationorthe natural or built environment.
The ‘things’ that cause pollution arecalled pollutants.
Causes of Air Pollution
Air pollution can result from both human and natural actions.
Natural events that pollute the air include forest fires, volcanic eruptions, wind erosion, pollen dispersal, evaporation of organic compounds and natural radioactivity.
Pollution from natural occurrences are not very often.
Man-made air pollution:
Human activities that result in air pollution include:
1. Emissions from industries and manufacturing activities.
2. Burning of Fossil Fuels
3. Usage of Household and Farming Chemicals
Emissions from industries and manufacturing
activities
The Industry sector produces the goods and raw materials we use every day. The greenhouse gases emitted during industrial production are split into two categories:
1. direct emissions that are produced at the facility.
2. indirect emissions that occur off site, but are associated with the facility's use of energy.
2. Burning Fossil Fuels
Cars and heavy duty trucks, trains, shipping vessels and airplanes all burn lots of fossil fuels to work.
This is a major cause of pollution, and one that is very difficult to manage. This is because humans rely heavily on vehicles and engines for transporting people, good and services.
3. Household and Farming Chemicals
Crop dusting, fumigating homes, household cleaning products or painting supplies, over the counter insect/pest killers, fertilizer dust emit harmful chemicals into the air and cause pollution.
In many case, when we use these chemicals at home or offices with no or little ventilation, we may fall ill if we breathe them.
Pollution Videos
Some URLs:
Some Simple Steps To Save Earth From EnvironmentPollution:
https://www.youtube.com/watch?v=tmhiglxga-4
How To Save Earth From Plastics
https://www.youtube.com/watch?v=73sGgmZoMBQ