Gupta, Sarika and Gadi, Ranu and Mandal, T. K. and Sharma, S. K. (2017) Seasonal variations and source profile of n-alkanes in particulate matter (PM10) at a heavy traffic site, Delhi. Environmental Monitoring and Assessment, 189 (1). 43-1-43-11. ISSN 0167-6369

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Abstract

Delhi is one of the most polluted cities in the world. The generation of aerosols in the lower atmosphere of the city is mainly due to a large amount of natural dust advection and sizable anthropogenic activities. The compositions of organic compounds in aerosols are highly variable in this region and need to be investigated thoroughly. Twenty-four-hour sampling to assess concentrations of n-alkanes (ng/m(3)) in PM10 was carried out during January 2015 to June 2015 at Indira Gandhi Delhi Technical University for Women (IGDTUW) Campus, Delhi, India. The total average concentration of n-alkanes, 243.7 +/- 5.5 ng/m(3), along with the diagnostic tools has been calculated. The values of CPI1, CPI2, and CPI3 for the whole range of n-alkanes series, petrogenic n-alkanes, and biogenic n-alkanes were 1.00, 1.02, and 1.04, respectively, and C-max were at C-25 and C-27. Diagnostic indices and curves indicated that the dominant inputs of n-alkanes are from petrogenic emissions, with lower contribution from biogenic emissions. Significant seasonal variations were observed in average concentrations of n-alkanes, which is comparatively higher in winter (187.4 +/- 4.3 ng/m(3)) than during the summer season (56.3 +/- 1.1 ng/m(3)).

Item Type:	Article
Additional Information:	Copyright for this article belongs to M\S Springer Verlag.
Subjects:	Environmental Science > Environmental Monitoring Environmental Science > Environmental Monitoring Environmental Science > Environmental Monitoring Environmental Science > Environmental Monitoring
Divisions:	UNSPECIFIED
Depositing User:	Users 27 not found.
Date Deposited:	20 Feb 2019 08:37
Last Modified:	20 Feb 2019 08:37
URI:	http://npl.csircentral.net/id/eprint/2846

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