Formation of atmospheric nitrate under high Particulate Matter concentration. (20th December 2011)

• Record Type: Journal Article
• Authors: Shandilya, Kaushik; Gupta, Akhilendra Bhushan; Khare, Mukesh
• Is Part Of: World review of science, technology and sustainable development. Volume 8:Number 2/3/4(2011)
• Page Start: 148
• Page End: 165
• Publication Date: 2011-12-20
• Subjects: nitrogen oxides -- NOx emissions -- atmospheric nitrate -- particulate matter -- PM25 -- PM10 -- sulphate -- potassium -- sodium -- organic matter -- crustal matter -- migration pathways -- sustainable development -- sustainability -- India -- air quality -- air pollution; Sustainable development -- Periodicals; Appropriate technology -- Periodicals; Technology transfer -- Periodicals; Globalization -- Periodicals; 338.92705
• Languages: English
• ISSNs: 1741-2242

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 ?gm ?3 in PM2.5 and 7.3?21.9 ?gm ?3 in PM10 . The high NO3 ? levels could provide a plausible explanation for moderate NOx concentration levels in Delhi city.