air pollution

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Below is an article on air pollution air pollution is a chemical, physical, biological agent that modifies the natural characteristics of the atmosphere. The atmosphere is a complex, dynamic natural gaseous system that is essential to support life on planet earth. Stratospheric ozone depletion has long been recognized as a threat to human's health as well as earths ecosystem World wide air pollution is responsible for large no of deaths and respiratory diseases. Enforced air quality standards, like the clean air act in the UNITED STATES OF AMERICA, have reduced the presence of some pollutants.while major stationary sources are identified air pollution, the greatest source of emission is actually mobile sources, principally the automobile. Gases such as Carbon dioxide which contribute to global warming has recently gained recognition as air pollutants. Please give ur comments and add more to this..