Carbon monoxide levels along roadway

Kho, F.W.L. and Law, P.L. and Ibrahim, Shaliza and Sentian, J. (2007) Carbon monoxide levels along roadway. International Journal of Environmental Science and Technology, 4 (1). pp. 27-34. ISSN 1735-1472,

PDF (Carbon monoxide levels along roadway)
Carbon_monoxide_levels_along_roadway.pdf - Published Version

Download (601kB)
Official URL:


This paper predicts and compares the carbon monoxide (CO) concentration levels along Sembulan Road for years 2004 and 2014 using CAL3QHC air dispersion model at two major locations, i.e., at Sembulan Roundabout and Sutera Harbour Intersection, Kota Kinabalu, Sabah, Malaysia. The CO concentration "hot-spots" were also identified at Sutera Harbour Intersection, and the highest maximum 1-hr average ground level concentrations of CO modeled for Kpg. Air Sembulan located in the northeast of idling road was 9.33 ppm for year 2004. This study showed that there would be no extreme changes in CO concentration trends for year 2014 although a substantial increase in the number of vehicles is assumed to affect the level of CO concentrations. It was also found that the CO levels would be well below the Malaysian Ambient Air Quality Guidelines of 30 ppm for 1-hour Time-Weighted Average (TWA). Comparisons between the modeled and observed outputs using quantitative data analysis technique and statistical methods indicated that the CAL3QHC predicted results correlated well with measured data. It was predicted that receptors located near to the major intersection, in the long-term would be potentially exposed to relatively higher CO levels. © Winter 2007, IRSEN, CEERS, IAU.

Item Type: Article
Additional Information: 280RZ Times Cited:3 Cited References Count:13
Uncontrolled Keywords: Air dispersion model, Carbon monoxide, Intersections, Maximum 1 h average, Correlation methods, Dispersions, Roads and streets, air quality, ambient air, comparative study, concentration (composition), dispersion, modeling, prediction, quantitative analysis, road, Asia, East Malaysia, Eurasia, Kota Kinabalu, Malaysia, Sabah, Southeast Asia, Sutera
Subjects: T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 19 Mar 2014 01:03
Last Modified: 06 Dec 2019 08:27

Actions (login required)

View Item View Item