Air pollution
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Air pollution






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Air pollution Air pollution Presentation Transcript

  • Air Pollution
  • Objectives 1.) Gain insight into what air pollution is and its causes. 2.) Relate the properties of gases mixtures to the problems of air pollution. 3.) Describe the effects of air pollution on human beings and the environment. 4.) Associate examples from your daily life and realize that we are God’s stewards of creation.
  • Introduction View slide
  • Air pollution is the introduction of chemicals, particulate matter, or biological materials that cause harm or discomfort to humans or other living organisms, or cause damage to the natural environment or built environment, into the atmosphere. The atmosphere is a complex dynamic natural gaseous system that is essential to support life on planet Earth. Stratospheric ozone depletion due to air pollution has long been recognized as a threat to human health as well as to the Earth's ecosystems. View slide
  • Activity
  • Procedure: 1.) Group yourselves according to your group. 2.) Listen as the reporter read the question. 3.) Write your answer on your tagboard and raise it. 4.) The group that will get the highest score will be declared as the winner.
  • 1.) Gain insight into what air pollution is and its causes. Air is the ocean we breathe. Air supplies us with oxygen which is essential for our bodies to live. Air is 99.9% nitrogen, oxygen, water vapor and inert gases. Human activities can release substances into the air, some of which can cause problems for humans, plants, and animals. There are several main types of pollution and well-known effects of pollution which are commonly discussed. These include smog, acid rain, the greenhouse effect, and "holes" in the ozone layer. Each of these problems has serious implications for our health and well-being as well as for the whole environment.
  • One type of air pollution is the release of particles into the air from burning fuel for energy. Diesel smoke is a good example of this particulate matter . This type of pollution is sometimes referred to as "black carbon" pollution. The exhaust from burning fuels in automobiles, homes, and industries is a major source of pollution in the air. Some authorities believe that even the burning of wood and charcoal in fireplaces and barbeques can release significant quantities of soot into the air. Another type of pollution is the release of noxious gases, such as sulfur dioxide, carbon monoxide, nitrogen oxides, and chemical vapors. These can take part in further chemical reactions once they are in the atmosphere, forming smog and acid rain. Pollution also needs to be considered inside our homes, offices, and schools. Some of these pollutants can be created by indoor activities such as smoking and cooking.
  • 2.) Relate the properties of gases mixtures to the problems of air pollution. Carbon dioxide is one the main pollutants for air pollution causes. This is because, although living beings do exhale carbon dioxide, this gas is harmful when emitted from other sources, which are caused due to human activities. An additional release of carbon dioxide happens due to various such activities. Sulfur dioxide is yet another harmful pollutant that causes air pollution. Sulfur dioxide is emitted largely to the excessive burning of fossil fuels, petroleum refineries, chemical and coal-burning power plants, etc. Nitrogen dioxide when combined with sulfur dioxide can even cause a harmful reaction in the atmosphere that can cause acid rain.
  • 3.) Describe the effects of air pollution on human beings and the environment. Pollutants we breath, which can be harmful, and exposure to chemicals by inhalation can negatively affect our lungs and other organs in the body. Lungs are anatomically structured to bring large quantities of into intimate contact with the blood system, to facilitate the delivery of oxygen. Lung tissue cells can be injured directly by air pollutants such as ozone, metals and free radicals.  Ozone can damage the alveoli -- the individual air sacs in the lung where oxygen and carbon dioxide are exchanged. More specifically, airway tissues which are rich in bioactivation enzymes can transform organic pollutants into reactive metabolites and cause secondary lung injury.  Lung tissue has an abundant blood supply that can carry toxic substances and their metabolites to distant organs.  In response to toxic insult, lung cells also release a variety of potent chemical mediators that may critically affect the function of other organs such as those of the cardiovascular system.  This response may also cause lung inflammation and impair lung function.
  • 4.) Associate examples from your daily life and realize that we are God’s stewards of creation. Air pollution from daily life Home Varnish, hairspray and tobacco smoke are just a few examples of air pollution from our daily life. We also use air cooler which create CFC gas and carbon dioxide which is very harmful for nature.  Car Across the globe, personal automobile is the single greatest air polluter. The release of this contains carbon monoxide, nitrous oxide and nitrous oxide gas. Everyone sitting in a traffic jam is getting poisoned by air pollution. 
  • Man has dominion over the earth, but that dominion cannot exceed the boundaries of God's laws, meaning that we are stewards of God's creation. Realizing that air pollution is one of the reasons for the suffering of humanity and with this we can see the whole page of our life and therefore we should be responsible for managing the environment that includes consideration for the preservation of the ecosystem and provides for basic human needs.