Sharma, S. K. and Saxena, M. and Saud, T. and Korpole, S. and Mandal, T. K. (2012) Measurement of NH3, NO, NO2 and related particulates at urban sites of Indo Gangetic Plain (IGP) of India. Journal of Scientific and Industrial Research, 71 (5). pp. 360-362. ISSN 0022-4456

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Abstract

This study presents variability and concentration of ambient NH3, NO and NO2 along with particulate matter (PK10) at urban sites of Chandigarh and Delhi of IGP of India (Dec 2010 - Mar 2011). Concentration of NH3 was found as follows: Chandigarh, 0.72 - 22.81 (av 5.17 +/- 0.92 mu g m(-3)); and Delhi, av 8.54 +/- 0.72 mu g m(-3). Concentration of ambient NO (av 13.13 +/- 1.50 mu g m(-3)) and NO2 (av 5.92 +/- 0.38 mu g m(-3)) were recorded over Chandigarh. NH4+ concentration were found as follows: Chandigarh, 2.60 - 4.39 (av 3.41 +/- 0.78 mu g m(-3)); and Delhi, 6.61 - 14.6 (av 9.91 +/- 3.77 mu g m(-3)). Concentration of NH3 was significantly correlated with NH4+ at both of the locations (r(2) = 0.87 and r(2) = 0.96). NH3 / NH4+ ratios were: Delhi, 0.59 - 1.75 (av 0.86); and Chandigarh, 0.28 - 5.19. A good correlation of SO42- and NO3- with NH4+ over Delhi indicates formation of aerosol. Similar correlations were recorded over Chandigarh.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s Elsevier.
Subjects:	Engineering
Divisions:	UNSPECIFIED
Depositing User:	Users 27 not found.
Date Deposited:	13 Mar 2020 11:43
Last Modified:	13 Mar 2020 11:43
URI:	http://npl.csircentral.net/id/eprint/3498

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