Ozone Layer and Air Pollution
28 November 2009 | Green News | 3 Comments
Ozone is concentrated in the stratosphere at an altitude of 15-35 km. It is formed of O2 molecules passing through a photo-dissociation process. In the stratosphere, there is a balance between ozone formation and decomposition processes. Usually this balance is broken by a substance called ChloroFloroMethane coming from aerosols and cooling systems.
Ozone, nitrogen oxide and hydrocarbons are closed substances (precursors) of photochemical smog (Los Angeles type). The smog is formed over large cities with intense traffic, for example in California. Since the early hours of any day the air is polluted with Nitric Oxide NO and NO2 in a mixture of various hydrocarbons (alkaline or aromatic) emitted by vehicles and factories. SO2, Nitrogen acids NOx and Hydrochloric acid HCl are responsible for the increased acidity of air. HCl is released from PVC combustion when waste is incinerated. This gas dissolves in water, transforming it into hydrochloric acid. Harmful substances can act directly on materials and beings as pollution (acid rain). Forests depreciation is also determined by climate, forestry errors, fungi, bacteria but especially by emissions.
Tags: acid rain, ChloroFloroMethane, emissions, Harmful substances, HCl, hydrocarbons, Hydrochloric acid, Nitric Oxide, Nitrogen acids, nitrogen oxide, NO, NO2, NOx, O2 molecules, ozone, ozone formation, photo-dissociation process, photochemical smog, SO2, Stratosphere
Air is the most important element of human environment. Man can’t live a single moments without air. But we don’t think that it is we who pollute this most vital element. Clean air is essential for life. Air is polluted in many ways. Smoke pollutes air. Man makes fires to cook his food.To make bricks burns refuse, melts pitch for road construction and burns wood. All these things produce heavy smoke and this smoke pollutes air. Railway engines, power houses, mills and factories use coal and oil. buses, tucks and cars use petrol and diesel oil. Again all these things create smoke and cause air pollution. The most serious air pollution occurs in big industrial areas where there are many mills and factories. serious air pollution also occurs in big cities where there are many buses, trucks and cars plying the street everyday. Sometimes men in big industrial area become so sick by inhaling polluted air that they cannot be cued. So proper measures and steps should be taken to prevent air pollution.
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Great blog post.Really looking forward to read more.