A STUDY ON CHLORIDE AEROSOLS IN MARITIME AND WELL-INLAND REGIONS.
Abstract
Chloride aerosols at various levels, in the lower troposphere, were sampled over a long period at Rihand Catchment Area (well-inland) in northeaFt India during the summer monsoon season of 1973 and over a short period towards the end of the same season at Bombay (maritime) and its neighbourhood. Millipore filter assembly was used for this purpose.
Over the well-inland region, the chloride count showed a little increase with height while the particle mass was greater at lower levels. In the maritime region, the count indicated a decrease with height whereas the mass remained steady. The size spectra were broader at lower levels. The spectrum was narrower and the number more over the maritime than over the well-inland. The mass over the maritime (upwind) was higher than that over the urban (downwind) location. The variations noticed under different categories and situations are discussed.
Over the well-inland region, the chloride count showed a little increase with height while the particle mass was greater at lower levels. In the maritime region, the count indicated a decrease with height whereas the mass remained steady. The size spectra were broader at lower levels. The spectrum was narrower and the number more over the maritime than over the well-inland. The mass over the maritime (upwind) was higher than that over the urban (downwind) location. The variations noticed under different categories and situations are discussed.
Keywords
Chloride aerosols, troposphere, well-inland, maritime, millipore filter, size spectrum, urban.
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