Abstract
The quality of the environment has a great bearing on the qualitative changes in rainwater. Therefore, for the assessment of the environmental quality, the variations in all of the environmental inputs must be considered and evaluated in the biogeochemical cyles of natural systems. The chemistry of rainwater has been studied by a number of workers in various regions of the world, e.g Ångström and Högberg (1952a, b), Emanuelsson et al. (1954), Larson and Hettick (1956), Herman and Gorham (1957), Wilson (1959), Allen et al. (1968) and Gore (1968), but information on rainwater and its chemistry for the Indian subcontinent is not available so far.