Volume No. 6 Issue No.: 2 Page No.: 365-371 Oct-Dec 2011

 

Study of Ambient Air Quality of Chidambaram , tamilnadu, india

 

P. Balashanmugam*, A. R. Ramanathan, E. Elango1 and V. Nehrukumar2

1. Department of Mechanical Engineering, Annamalai University, Chidambaram, Tamil Nadu (INDIA)
2. Department of Civil Engineering, Annamalai University, Chidambaram, Tamil Nadu (INDIA)

 

Received on : August 16, 2011

 

ABSTRACT

 

During the winter of 2008, concentrations of oxides of nitrogen (NOx), oxides of sulphur (SOx), Suspended Particulate Matter (SPM) and Carbon Monoxide (CO) were collected over successive periods of about 8 hour at eight sites. High volume air sampler was used to measure the concentration of oxides of nitrogen (NOx), oxides of sulphur (Sox), Suspended Particulate Matter (SPM) and Carbon Monoxide (CO). The results reported pertain to an eight hour successive preliminary air sampling exercise carried out at each of the eight selected locations in Chidambaram, a southern semi urban settlement in India. Criteria pollutants SPM, CO, SO2 and NO2 measured are found to have either crossed or on the average of crossing the limits, necessitating the immediate installation of a continuous monitoring and control mechanism. While transport related emissions are the major sources of air contamination, increasing civil construction activities also contribute to particulates. The exponential rise in volume of vehicles, disadvantageous traffic flow pattern, differing driving cycle pattern and human interceptions deserve due attention. The concentrations of SOx were below the prescribed limits. The SPM values exceeded the National Ambient Air Quality Standard (NAAQS) at all the eight locations. The NOx values exceeded the National Ambient Air Quality Standard (NAAQS) at six locations. The CO values exceeded also the National Ambient Air Quality Standard (NAAQS) at six locations.

 

Keywords : Ambient air quality, Preliminary assessment, Transport emissions, Semi urban air sampling, Criteria pollutant

 

 

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