Monsoonal deposition of sea salt and air pollutants over Bombay

Ronald Sequeira

doi:10.3402/tellusa.v28i3.10291

Monsoonal deposition of sea salt and air pollutants over Bombay

Tellus

Volume 28 (1976): Issue 3

By: Ronald Sequeira

Open Access

|Jan 1976

Abstract

Representative sampling of rainwater has been carried out in Greater Bombay and its neighbourhood during the SW monsoon period of 1974. It is estimated that on the average ∼200 kg ha⁻¹ sea salt is deposited here, each monsoon. A high ‘excess’ of Ca is observed throughout Bombay, including relatively unpolluted places. The source of this excess is seen to be non-marine. The mean pH, ionic balance and salinity of rainwater has been used to characterise different areas of Bombay in varying degrees of pollution.

References

Beilke , S. & Georgii , H. W . 1968 . Investigation on the incorporation of sulfur-dioxide into fog- and rain-droplets . Tellus 20 , 435 – 442 .
Search in Google Scholar Back to article
Eriksson , E . 1952 . Composition of atmospheric pre-cipitation. Part II. Sulfur, chloride and iodine compounds . Bibliography. Tellus 4 , 280 – 303 .
Search in Google Scholar Back to article
Eriksson , E . 1958 . The chemical climate and saline soils in the arid zone . In Arid Zone Research X. Climatology Rev. of Research. Unesco , Paris .
Search in Google Scholar Back to article
Eriksson , E . 1960 . The yearly circulation of chloride and sulfur in nature; meteorological, geochemical, and pedological implications. Part II . Tellus 12 , 63 – 109 .
Search in Google Scholar Back to article
Fairbridge , R. W. ( ed.) 1966 . The encyclopedia of oceanography . Reinhold , New York . 1021 pp .
Search in Google Scholar Back to article
Glass , S. J. & Matteson , M. J . 1973 . Ion enrich-ment in aerosols dispersed from bursting bubbles in aqueous salt solutions . Tellus 25 , 272 – 280 .
Search in Google Scholar Back to article
Granat , L . 1972 . On the relation between pH and the chemical composition in atmospheric pre-cipitation . Tellus 24 , 550 – 560 .
Search in Google Scholar Back to article
Junge , C. E . 1972 . The cycle of atmospheric gases -natural and man-made . Q. J. Roy. Met. Soc . 98 , 711 – 729 .
Search in Google Scholar Back to article
Junge , C. E. & Werby , R. T . 1958 . The concentra-tion of chloride, sodium, potassium, calcium and sulphate in rainwater over the United States . J. Met . 15 , 417 – 425 .
Search in Google Scholar Back to article
Khemani , L. T . 1974 . Some aspects of atmospher-ic chemistry as applied to cloud physics. M. Sc. Thesis, Bombay University. 161 pp.
Search in Google Scholar Back to article
Nair , K. V. K. , Bhattathiri , P. M. A. & Chhapgar , B. F . 1966 . Angria Bank Expedition. 1. General hydrographic end chemical features. AEETIHPI PM-3 , Health Physics Division , Atomic Energy Estt ., Trombay (Bombay ).
Search in Google Scholar Back to article
Okita , T . 1972 . Calculation of rate of absorption of sulfur dioxide by rain- and cloud-droplets . Bull. Inst. Publ. Health 21 , 9 – 13 .
Search in Google Scholar Back to article
Rankama , K. & Sahama , T. G . 1950 . Geochemistry. Univ. Chicago Press. 912 pp.
Search in Google Scholar Back to article
Rasool , S. I. ( ed.) . 1973 . Chemistry of the lower atmosphere . Plenum Press , New York . 335 pp .
Search in Google Scholar Back to article
Sadasivan , S . 1973 . Trace constituents in the mon-soon rains near Bombay . International Symp. on the chemistry of sea/air particulate exchange pro-cesses. Nice , France .
Search in Google Scholar Back to article
Selezneva , E. S . 1972 . Estimation of the back-ground contamination of the atmosphere from the chemical composition of precipitation . Tellus 24 , 122 – 127 .
Search in Google Scholar Back to article
Sequeira , R . 1973 . Evaluation of the chemical com-position of aerosols (with special reference to Trom-bay). M. Sc. Thesis, Bombay University. 72 pp.
Search in Google Scholar Back to article
Yennawar , P. K. , Dixit , S. N. , Pampattiwar , V. L. , Dave , J. N. & Arceivala , S. J . 1970 . Air pollu-tion in four major cities in India . Env. Health (CPHERI) 12 .
Search in Google Scholar Back to article
Zutshi , P. K . 1970 . Greater Bombay-its geo-graphical location, meteorological characteristics and the magnitude and distribution of the major sources of air pollution . Govt. of India, Atomic Energy Commission, BARC 461 , 11 pp .
Search in Google Scholar Back to article
Zutshi , P. K. , Mahadevan , T. N. & Banerjee , T . 1973 . Trends of the concentrations of some gaseous pollutants in Bombay . Ind. J. Met. & Geophys . 24 , 61 – 64 .
Search in Google Scholar Back to article
Zutshi , P. K . 1975 . Personal communication.
Search in Google Scholar Back to article