Formation of atmospheric nitrate under high Particulate Matter concentration
by Kaushik Shandilya; Akhilendra Bhushan Gupta; Mukesh Khare
World Review of Science, Technology and Sustainable Development (WRSTSD), Vol. 8, No. 2/3/4, 2011

Abstract: This study was primarily initiated to understand the consistently moderate levels of nitrogen oxides (NOx) in Indian cities in spite of increasing NOx emissions. The research objective was to understand NO₃^? formation as a NOx function, and other atmospheric constituents. For this purpose, air quality monitoring was conducted at four locations in Delhi city, India (during October–November, 2000), representing various land-use patterns. The NO₃^? levels were found to be 4.9–15.1 µgm^?3 in PM_2.5 and 7.3–21.9 µgm^?3 in PM₁₀. The high NO₃^? levels could provide a plausible explanation for moderate NOx concentration levels in Delhi city.

Online publication date: Tue, 13-Dec-2011

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