Carbon monoxide levels along roadway
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 “...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Springer Science
2007
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| Subjects: | |
| Online Access: | http://ir.unimas.my/11088/ http://ir.unimas.my/11088/1/carbon%20monoxide%20levels%20along%20roadway%20%28abstract%29.pdf |
| Summary: | 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. |
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