dc.description.abstract |
The atmosphere, which makes up the largest fraction of the biosphere, is a dynamic system that continuously absorbs a wide range of solids, liquids and gases from both natural and man made sources. These substances travel through air, disperse and react with one another and with other substances both physically and chemically. Due to natural and man-made processes, a portion of these substances which interacts with environment to cause toxicity, disease, aesthetic distress, physiological effects or environmental decay, has been labeled by man as a pollutant. |
en_US |