state the origin and health impact of smog
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The main sources of these precursors are pollutants released directly into the air by gasoline and diesel-run vehicles, industrial plants and activities, and heating due to human activities.
Smog is often caused by heavy traffic, high temperatures, sunshine and calm winds. These are few of the factors behind increasing level of air pollutionin atmosphere.
Hospital admissions and respiratory deaths often increase during periods when ozone levels are high. There is a lack of knowledge on the long-term effects of air pollutionexposure and the origin of asthma.
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Smog is often caused by heavy traffic, high temperatures, sunshine and calm winds. These are few of the factors behind increasing level of air pollutionin atmosphere.
Hospital admissions and respiratory deaths often increase during periods when ozone levels are high. There is a lack of knowledge on the long-term effects of air pollutionexposure and the origin of asthma.
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