Weekend–Weekday differences in near-surface ozone concentrations in Chennai, South India
by M. Pulikesi, V.N. Rayudu, V. Ramamurthi, S. Sivanesan
International Journal of Environment and Waste Management (IJEWM), Vol. 4, No. 1/2, 2009

Abstract: The paper describes the weekend–weekday differences in near-surface ozone (O₃) concentration in Chennai, South India. The O₃ data measured during 18 January 2006 to 28 February 2006 has been analysed. The result indicated no major difference between the weekdays and weekend profiles for the O₃ concentrations. Further, oxides of nitrogen (NO_x), carbon monoxide (CO), Suspended Particulate Matter (SPM), wind speed and direction data has also been analysed for the same period. It has been observed that the 24-hour average SPM concentrations exceeded the National Ambient Air Quality Standards (NAAQS) on 26 January 2006 (Thursday), which is a national holiday.

Online publication date: Sun, 28-Jun-2009

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