Causes of ozone depletion slides
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The document discusses the causes of ozone depletion, including both anthropogenic (man-made) and natural pollutants. Anthropogenic pollutants that contribute to ozone depletion are industrial smog from cities, particulate matter from diesel exhaust and hydrocarbons, and fossil fuels such as coal and oil. Natural pollutants include volcanic eruptions that release greenhouse gases into the atmosphere and wetlands, termites, and oceans that produce 36% of methane emissions.
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06 129 air pollution
This document is a seminar report submitted by Kavaki Vidya Latha on the topic of air pollution. It includes an abstract, table of contents, and sections on defining air pollution, identifying primary and secondary pollutants, listing sources of air pollution, discussing indoor air quality and various health effects of air pollution, particularly on children. It also covers emission factors, reduction efforts, and control devices to address air pollution.
Air Pollution seminar
Air is the Earth's atmosphere which living things breathe. It has mass and weight but no color or smell. Air pollution is the introduction of harmful substances into the atmosphere from natural or human-made sources, and can damage health, environments, and climate. The major air pollutants are particulate matter, carbon monoxide, nitrogen oxides, sulfur oxides, volatile organic compounds and ground-level ozone. Air pollutants come from sources like industrial facilities, vehicle exhaust, and agricultural burning.
Air pollution
This document discusses air pollution and its major pollutants. It begins by defining air pollution and listing its sources such as agricultural activities, automobiles, industries, and natural phenomena. It then classifies air pollutants as either primary or secondary and organic or inorganic. The major pollutants discussed are sulfur oxides, nitrogen oxides, carbon dioxide, volatile organic compounds, particulate matter, carbon monoxide, ozone, and chlorofluorocarbons. Each pollutant's source and health effects are briefly described.
Air Pollution Its Origin and Effects
This document discusses the origin and effects of air pollution. It begins by defining air pollution and describing the natural composition of clean air. It then discusses the classification and sources of air pollutants, focusing on sulfur, nitrogen, and carbon containing compounds as well as particulate matter. The main sources of these pollutants are the combustion of fossil fuels, industrial processes, transportation, and other human activities. Finally, it outlines some of the key effects of air pollution, including impacts on atmospheric properties, materials, vegetation, and human health. Air pollution has been shown to reduce visibility, influence climate conditions, corrode materials, damage plants, and negatively impact respiratory and cardiovascular health.
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Changes in vegetation cover refer to variations in the distribution, composition, and overall
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- 4. INDUSTIAL SMOG Industrial smog is the black-brown colored haze that is in the air that can be seen over some cities. It is mostly visible in the summer.
- 5. PARTICULATE MATTER PM is a direct (primary) pollution and a secondary pollution from hydrocarbons, nitrogen oxides, and sulfer dioxides. Diesel exhaust is a major contributor to PM pollution.
- 6. FOSSIL FUELS Fossil fuels are hydrocarbons, primarily coal, fuel oil or natural gas, formed from the remains of dead plants and animals
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