Chemical composition of monsoon rains over Calcutta. Part I

B. K. Handa

doi:10.3402/tellusa.v21i1.10059

Chemical composition of monsoon rains over Calcutta. Part I

Tellus

Volume 21 (1969): Issue 1

By: B. K. Handa

Open Access

|Jan 1969

Abstract

Monsoon rainwater over Calcutta was analysed for Na, K, Ca, Mg, Cl, SO₄, HCO₃, NO₃, pH, SiO₂, B and Fe. The data shows that the dissolved mineral content is greatly affected by meteorological conditions viz. intensity, quantity and interval between various showers as well as wind velocity (cyclonic weather). Amongst the ions bicarbonate ions are quite prominent, particularly when rainfall is low. The sulphate ions generally exceed the chloride ions. The origin of the various constituents is also discussed.

References

Carroll , D . 1962 . Rainwater as a chemical agent of geologic process. A review. U.S. Geol. Surv. Water Supply Paper 1535-G, p. G1-G18.
Search in Google Scholar Back to article
Eriksson , E . 1952 . The composition of atmospheric precipitation. I Nitrogen compounds . Tellus 4 , 215 – 232 .
Search in Google Scholar Back to article
Gorham , E . 1961 . Factors influencing supply of major ions to inland waters with special reference to the atmosphere . Geol. Soc. Amer. Bull . 72 , 795 – 840 .
Search in Google Scholar Back to article
Hutchinson , G. E . 1958 . The biochemistry of the terrestrial atmosphere. In The Earth as a Planet, p. 371-433. University Chicago Press, Illinois. Ed. G. P. Kuiper.
Search in Google Scholar Back to article
Junge , C. E. 1958. Atmospheric Chemistry. Adv. in Geophysics 4, 1 – 108.
Search in Google Scholar Back to article
Larson , T. E. & Hettick , I . 1956 . Mineral composi-tion of rainwater . Tellus , 8 , 191 – 201 .
Search in Google Scholar Back to article
Narayanaswamy , R . 1939 . Some measurements of chloride, nitrate, and nitrite present in the water of the monsoon rain at Bombay. Proc. Incl. Acad. Sci., IX, Section A, 518 – 525.
Search in Google Scholar Back to article