| Author | Pongsit Siriroughudomporn |
| Call Number | AIT Thesis no. EV-97-35 |
| Subject(s) | Volatile organic compounds
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. EV-97-35 |
| Abstract | A monitoring program for benzene and toluene concentrations in ambient air was
conducted to evaluate the air pollution problems in Bangkok city arising from vehicle exhaust
emission. Four air sampling stations were strategically established to cover the Bangkok
Metropolitan Area. The ambient air samples were carried out to determine the correlation of
different traffic configurations between peak hour and non peak hour, weekday and weekend,
finally between day-time and night-time.
The minimum and maximum concentrations of benzene and toluene in ambient air of
the study areas were in the range of 12.34-35.82 µg/m3 and 17.43-93.55 µg/m
3 for 8-hour
average, respectively.
The highest benzene and toluene concentrations were found at Yaowaraj sampling
station while the lowest benzene and toluene concentrations were found at Land Development
Division sampling station.
From the results, it should be noted that benzene and toluene concentrations for peak
hour were unexpected to be lower than non peak hour. On the other hand, benzene and toluene
concentrations for weekday and day-time were considerably higher than weekend and nighttime respectively.
The finding also shown that there was a correlation between the average benzene and
toluene concentrations with average traffic speed in each traffic zones. In general, the
benzene concentrations were exceeded WHO guidelines while the toluene concentrations
were well below this guidelines, in respect to all the traffic zones in Bangkok. |
| Year | 1997 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. EV-97-35 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Environmental Engineering (EV) |
| Chairperson(s) | Samorn Muttamara |
| Examination Committee(s) | Visvanathan, C.;Ha, Sung Ryong |
| Scholarship Donor(s) | The Electricity Generating Authority of Thailand
(EGAT) |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1997 |