Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/35823
Title: Characterization of a convective shower by short-time sampling during monsoon 1994 at Delhi
Authors: Kulshrestha, U C
Sarkar, A K
Parashar, D C
Issue Date: Dec-1995
Publisher: NISCAIR-CSIR, India
Abstract: Short-time nine samples of equal volume (50 ml) from a single convective shower event were collected during July 1994 at Delhi. All samples were analyzed for Na, K, Ca, Mg, NH4, F, Cl, NO3 and SO4. Rainfall intensity, conductance and pH of the samples were also measured. The pH of all samples was noticed acidic, ranging from 4.42 to 5.51. Acidic pH has been ascribed to the lower concentration of soil-derived components which are alkaline in nature and neutralize the acidity of rain water significantly. Higher positive correlation coefficients of SO4, NO3 and NH4 with the acidity of rain water indicated their input in the form of acids through oxidation reactions of their precursor gases. The higher correlation coefficients of SO4, NO3 with NH4 indicated that these acids are primarily neutralized by ammonia present in the atmosphere forming (NH4)2SO4 and NH4NO3 respectively.
Page(s): 308-310
URI: http://nopr.niscair.res.in/handle/123456789/35823
ISSN: 0975-105X (Online); 0367-8393 (Print)
Appears in Collections:IJRSP Vol.24(6) [December 1995]

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