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HERO ID
194011
Reference Type
Journal Article
Title
An application and evaluation of the CAL3QHC model for predicting carbon monoxide concentrations from motor vehicles near a roadway intersection in Muscat, Oman
Author(s)
Abdul-Wahab, SA
Year
2004
Is Peer Reviewed?
Yes
Journal
Environmental Management
ISSN:
0364-152X
EISSN:
1432-1009
Volume
34
Issue
3
Page Numbers
372-382
Language
English
PMID
15520894
DOI
10.1007/s00267-004-0146-2
Web of Science Id
WOS:000224448100006
Abstract
The CAL3QHC model was used to predict carbon monoxide (CO) concentrations from motor vehicles at an existing urban intersection (Star Cinema in Muscat area, Oman). The CO concentrations predicted from the model were compared with those measured in the field. Predicted average CO concentrations were found to compare favorably with measured values obtained at all eight receptors considered within the modeled intersection. In general, the comparison indicates good agreement with some underprediction for CO. For receptor 6, the model overpredicts the average CO concentration. This overprediction is associated with the presence of trees and green area in the location of receptor 6. In general, the measurements and the model results indicated that the highest CO concentrations were found to occur close to the intersection and, hence, a decrease in the concentration levels was seen as the distance from the road increased. The results indicated that the levels of CO were well below the ambient air quality standard and that probably no health risk was present in areas adjacent to the star cinema intersection. However, the predicted worst-case 1-h CO concentrations assuming inversion atmospheric stability conditions (class F) and wind speed of 1 m/s indicated that the levels of CO were close to or higher than the Oman's National Ambient Air Quality Standards (NAAQS) value of 35 ppm at all receptors considered. The results of this study are useful in transport development and traffic management planning.
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ISA-CO (2010 Final Project Page)
2010 Final
•
LitSearch-NOx (2024)
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