Axia College Material Tracy Durham
Appendix D

Air Pollution Chart

After reviewing Ch. 8 and 9 of your text, complete the following table, then respond to the questions that follow:

Issue | Sources | Health/Environmental Effects |
Carbon dioxide (CO2) | Emissions from motor vehicles; burning fossil fuels; land clearing; forest combustion | (CO2) causes Greenhouse effect and global warmingEssential for internal respiration, but when levels are high CO2 can cause asphyxiation, frostbite, kidney damage and comas. |
Chlorofluorocarbons (CFCs) | Developed as a safe alternative to ammonia and sulfur dioxide refrigerants. They are non-flammable, non-explosive, non-corrosive, very low toxicity. Used in refrigeration of perishable foods, medical supplies, air conditioners, communication equipment, computers and navigation equipment for air crafts. | There are no known health or environmental effects with the use of CFCs. |
Ground-level ozone (O3) | Created by chemical reactions between oxides of nitrogen (NOx) and volatile organic compounds (VOC) in the presence of sunlight. Emissions from industrial facilities, electric utilities, motor vehicle exhaust, gasoline vapors, and chemical solvents are some of the major sources. | (O3) causes airway constriction, wheezing and breathing difficulties, coughing, inflammation like a sunburn, and aggravation of asthma, susceptibility to pneumonia and bronchitis, and lung damage.(O3) can interfere with the ability of sensitive plants that produce and store food, damaging leaves of the trees and plants, reducing forest growth and crop yields. |
Sulfuric acid (H2SO4) | Used in lead-based batteries for vehicles, ore processing, fertilizing manufacturing, oil refining, and waste water processing. | (H2SO4) can cause lung damage, coughing, shortness of breath, severe skin irritation and burns. If swallowed it can cause nausea, vomiting, diarrhea and in severe cases, death.The use of (H2SO4) can burn plants, birds or land animals exposed to it. |
Note: Some pollutants may not have direct health effects.

Choose one of the following atmospheric issues: air pollution, global warming, ozone depletion, and acid deposition. Then, respond to the following:
* What air pollutants combine and contribute to this issue
* Briefly describe the health and environmental problems caused by the selected atmospheric issue.
* Provide one key solution to help either reduce the effects or recover from the effects of the selected issue.

Global Warming

???Global warming is the increase in the average surface air temperature of the planet that is the result of the build-up of heat-trapping or ???greenhouse??? gases in the atmosphere???. (Coalition for Clean Air, 2010)

* What air pollutants combine and contribute to this issue Greenhouse gases, mainly CO2, contribute to global warming of the earth. Using fossil fuels, such as driving a car, electricity from coal-fired power plants, and using natural gases for heat, are the main human sources of CO2.

* Briefly describe the health and environmental problems caused by the selected issue. Because the number of days the temperature is rising each year, there will be more heat related illnesses and deaths. Ozone and smog levels will increase as the temperature rises as well. This will trap pollutions which will cause more health problems such as coughing, shortness of breath, wheezing, headache, and nausea. Increased lung cancer and development of asthma are more likely to increase as well.

* Provide one key solution to help either reduce the effects or recover from the effects of the selected issue. I don??™t believe there is one key solution to reduce or recover from global warming. Governments need to adopt more energy efficiency standards, eliminate companies that promote coal and oil use, support a trend of renewable sources of energy, protect and restore forests, and increase federal fuel economy for new vehicles.

Reference:

Coalition for Clean Air. (2010). Global Warming FAQs. Retrieved from
http:www.coalitionforcleanair.org

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