Sharmal, S. K. and Mandal, T. K. and Sharma, A. and Jain, Srishti and -, Saraswati (2018) Carbonaceous Species of PM2.5 in Megacity Delhi, India During 2012-2016. Bulletin of Environmental Contamination and Toxicology, 100 (5). pp. 695-701. ISSN 0007-4861

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Abstract

Organic carbon (OC) and elemental carbon (EC) in PM2.5 were estimated to study the seasonal and inter-annual variability of atmospheric total carbonaceous aerosols (TCA) at an urban site of megacity Delhi, India for 5 years from January, 2012 to December, 2016. The annual average (+/- standard deviation) concentrations of PM2.5, OC, EC and TCA were 128 +/- 81, 16.6 +/- 12.2, 8.4 +/- 5.8 and 34.5 +/- 25.2 A mu g m(-3), respectively. During the study, significant seasonal variations in mass concentrations of PM2.5, OC, EC and TCA were observed with maxima in winter and minima in monsoon seasons. Significant correlations between OC and EC, and OC/EC ratio suggested that vehicular emissions, fossil fuel combustion and biomass burning could be major sources of carbonaceous aerosols of PM2.5 at the sampling site of Delhi, India.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s Springer Verlag.
Subjects:	Biochemistry & Molecular Biology > Toxic Substances Earth Sciences
Divisions:	UNSPECIFIED
Depositing User:	Users 27 not found.
Date Deposited:	17 Dec 2019 08:19
Last Modified:	17 Dec 2019 08:19
URI:	http://npl.csircentral.net/id/eprint/3803

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