tag:blogger.com,1999:blog-6013423232371911810.post-35662399484782252712008-02-02T12:03:00.000-08:002008-02-02T12:05:22.955-08:00Air pollutionAir pollution is the modification of the natural characteristics of the atmosphere by a chemical, particulate matter, or biological agent. The atmosphere is a complex, dynamic natural gaseous system that is essential to support life on planet Earth. Stratospheric ozone depletion due to air pollution has long been recognized as a threat to human health as well as to the Earth's Internet Marketing Optimizernoreply@blogger.com