ABSTRACT
Although the atmosphere affects the fate of pollutants via various sink processes, it experiences significant short-or long-term pollution-induced changes. These may be local, regional, or global in scale, depending on such factors as sources, longrange transport, movement into the stratosphere, and accumulation of long-lived pollutants. Atmospheric effects may include changes in (1) visibility, (2) urban climate, (3) quantity and frequency of rainfall and associated meteorological phenomena, (4) atmospheric deposition, (5) stratospheric ozone (O
) depletion, and (6) global climate change. The significance of these effects may be slight (visibility impairment) to potentially very serious (stratospheric O
depletion and changes in climate).
