Singh, Nirankar and Mittal, Susheel K. and Agarwal, Ravinder and Awasthi, Amit and Gupta, Prabhat K. (2009) Impact of rice crop residue burning on levels of SPM, SO2 and NO2 in the ambient air of Patiala (India). International Journal of Environmental Analytical Chemistry , 90 (10). pp. 829-843. ISSN 1029–0397

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Ground-based ambient air monitoring was conducted at five different locations in and around Patiala city (29°49′–30°47′N Latitude, 75°58′–76°54′E Longitude) in Northern India in order to determine the impact of open burning of rice (Oriza sativa) crop residues on concentration levels of suspended particulate matter (SPM), sulphur dioxide (SO2) and nitrogen dioxide (NO2). Covering sensitive, residential, agricultural, commercial and urban areas, sampling of these pollutants was organised during August 2006 to January 2007 and August 2007 to January 2008 casing two rice crop residue burning periods (October–November) using a high volume sampling technique combined with gaseous sampling systems. Gravimetric analysis was used in the estimation of total suspended particulate matter (TSPM) whereas SO2 and NO2 concentration was determined using spectrophotometer (Specord205, Analytikjena). Monthly average concentrations of SPM, SO2 and NO2 have shown significant up and down features at all the selected sampling sites during the study period. Monthly average concentrations (24 hour) of SPM, SO2 and NO2 varied from 100 ± 11 µg m−3 to 547 ± 152 µg m−3, 5 ± 4 µg m−3 to 55 ± 34 µg m−3 and 9 ± 5 µg m−3 to 91 ± 39 µg m−3. Substantially higher concentrations were recorded at the commercial area site as compared to the other sampling sites for all the targeted air pollutants. Levels of SPM, SO2 and NO2 showed clear increase during the burning months (October–November) incorporated with the effect of meteorological parameters especially wind direction, precipitation and atmospheric temperature.

Item Type: Article
Additional Information: Copyright for this article belongs to Taylor & Francis Group.
Uncontrolled Keywords: ambient air quality; rice crop residue burning; TSPM; NO2; SO2
Subjects: Chemistry
Depositing User: Ms Neetu Chandra
Date Deposited: 03 May 2012 12:20
Last Modified: 03 May 2012 12:20

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