Mandal, Papiya and Saud, T. and Sarkar, R. and Mandal, A. and Sharma, S. K. and Mandal, T. K. and Bassin, J. K. (2014) High seasonal variation of atmospheric C and particle concentrations in Delhi, India. Environmental Chemistry Letters, 12 (1). pp. 225-230. ISSN 1610-3653

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Abstract

The highly populated Indian regions are currently in a phase of rapid economic growth resulting in high emissions of carbonaceous aerosols. This leads to poor air quality and impact on climate. The chemical composition of carbonaceous aerosols has rarely been studied in industrial areas of India. Here, we investigated carbonaceous aerosols in particulate matter (PM) monthly in the industrial area of Delhi in 2011. The concentrations of organic C and elemental C in PM10 fraction were analyzed. Results show a clear seasonal variability of organic and elemental C. PM10 ranged 95.9-453.5 mu g m(-3), organic C ranged 28.8-159.4 mu g m(-3), and elemental C ranged 7.5-44.0 mu g m(-3); those values were higher than reported values. Organic and elemental C were correlated with each other in pre-monsoon and winter seasons, implying the existence of similar emission sources such as coal combustion, biomass burning and vehicular exhaust. The annual average contribution of total carbonaceous aerosols in PM10 was estimated as 62 %.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/S Springer Verlag.
Uncontrolled Keywords:	Particulate matter Organic carbon Elemental carbon Total carbonaceous aerosols Seasons Monthly variation
Subjects:	Chemistry Engineering
Divisions:	UNSPECIFIED
Depositing User:	Dr. Rajpal Walke
Date Deposited:	12 Oct 2015 10:57
Last Modified:	12 Oct 2015 10:57
URI:	http://npl.csircentral.net/id/eprint/1328

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