Assessment of Ground-Level Ozone and Its Variability with Meteorological Parameters at Karaikal, India
Journal Title: Universal Journal of Environmental Research and Technology - Year 2015, Vol 5, Issue 5
Abstract
Ozone (O3), an allotrope of oxygen is one of the most powerful oxidants which occur naturally in trace amounts in the Earth’s atmosphere. Availability of ground level O3, temperature and wind speed data for a period from October 2013 to September 2014 at Karaikal, Union Territory of Puducherry, a coastal region along south east India has been utilized to assess the variability of ground level O3 against the other three parameters. Temporal variation of O3 with temperature, wind speed clearly indicates the dependence of O3 on the above said two parameters. The results reveals a strong dependence of O3 on temperature (r2=0.8722) and hence in Ozone levels in ambient air. Correlation between O3 and wind speed shows not much significance (r2=0.1816). Seasonal variation of O3 reveals that Ozone levels are maximum during the summer and pre-monsoon period while minimum Ozone levels occurs during the North-east monsoon and winter seasons. It is observed from the results that not a single Ozone data exceeds the standard value and lies well within the limit of WHO recommendation (50 ppb).
Authors and Affiliations
Kartharinal Punithavathy, S. Vijayalakshmi, S. Johnson Jeyakumar
Keywords
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