Chemistry of monsoon rain water at Delhi

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Rain water samples collected from various localities in Delhi throughout the monsoon of 1978 were analysed for Na, K, Ca, Mg, Cl, HCO3, SO4, PO4 and SiO2, pH and conductivity were also measured. The alkaline rain water of Delhi has total dissolved solids (TDS) ranging from 35–170 p.p.m., depending on space and time. The variation and relationship among the major constituents have been qualitatively evolved and controlling factors briefly discussed.DOI: 10.1111/j.2153-3490.1980.tb00981.x
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