Volume No. 5 Issue No.: 3 Page No.: 566-573 January-March 2011

 

PREDICTION OF SPATIAL CONCENTRATION DISTRIBUTION OF carbon monoxide ON URBAN STREET IN DELHI : A COMPARATIVE STUDY

 

N. C. Gupta*1, M. T. Qutebha and S. S. Sambi2

1. University School of Environment Management, GGS Indraprastha University, Kashmere Gate, Delhi (INDIA)
2. University School of Chemical Technology, GGS Indraprastha University, Kashmere Gate, Delhi (INDIA)

 

Received on : November 05, 2010

 

ABSTRACT

 

The prediction of carbon monoxide (CO) emitted by vehicular exhausts at urban street is of foremost importance in order to improve ways to mitigate the effects of air pollution. In present study, an average hourly and 8 hourly CO has been predicted using three different models viz. CALINE -4, CAL3QHC and CAL3QHCR. The traffic parameters like volume and emission factors have been monitored for Barakhamba Road, Canaught Place, New Delhi, India. The composite emission factor has been evaluated as described in CALINE-4 manual. All three models have been run for three peak hours (morning, afternoon and evening peak hour) of winter season. The predicted values of CO from different models exhibit the good predicting capability of CAL3QHCR in comparison to CALINE4 and CAL3QHC. The comparison of results obtained in models prediction with National Ambient Air Quality Standard (NAAQS) shows that the predicted concentration lies within the prescribed permissible limits.

 

Keywords : Air pollution, Urban street, Prediction models, CO concentrations, Caline-4

 

 

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