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Explain Transport Related Air pollution and how it affects human health and the environment\
* Sulfur dioxide (SO2) is mainly emitted by the burning of fossil fuels such as crude oil and coal. Sulfur dioxide is an irritating gas that can cause burning of eyes and mucus membranes in the nose, throat, and lungs. [ [ In moist air, sulfur dioxide combines with water to form sulfuric acid, the foundation of winter smog and acid deposition. * Nitrogen oxides (NOX) are gases formed by
the combination of nitrogen with various numbers of oxygen ions. Human sources of nitrogen oxides include vehicle traffic; fossil-fuel burning power facilities and industrial factories; and agricultural fertilizers. Nitrogen oxides react with other gasses in the air to form ozone and acids. Nitrogen oxides also accelerate eutrophication of water bodies. * Ammonia (NH3) also results from agricultural activities, including animal husbandry, and contributes to acid deposition and eutrophication. * Volatile Organic Compounds (VOCs) include a range of different contaminants, such as carbohydrates, organic compounds and solvents. VOCs arise from fossil fuel burning, industrial processes such as leather tanning plastics manufacturing, use of household cleansers, paints, items made from petro-chemicals, and agricultural activities. VOCs play a central role in ozone loss. They can have a variety of effects on human health ranging from noxious odors to respiratory diseases and even cancer. * Methane (CH4) is emitted mainly by livestock, but smaller amounts are also released during waste combustion and natural gas production. Methane contributes to the greenhouse effect, global warming, and climate change. * Carbon monoxide (CO) results from the incomplete combustion of any fuel. High concentrations of CO in the blood prevent the transportation of oxygen and can lead to headaches, breathing difficulty, and swift death. Carbon monoxide also contributes to the greenhouse effect and global warming. * Dust particles, or particulate matter, can derive from natural events such as volcanoes or human activities such as construction and industrial processes. Cement manufacturing, mining, and other mineral processing industries are primary sources of dust. ] ]
Expert answered|uneta|Points 60|
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Asked 9/13/2013 9:44:41 AM
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