Home > Articles > All Issues > 2024 > Volume 15 Number 2 (2024) >
doi: 10.18178/ijesd.2024.15.2.1471
The Inhalation Exposure of PM2.5 and PM10 from Traffic Exhaust at the Uthai Tani Bus Station and Two Roadside Areas in Uthai Tani, Thailand
Email: opasp64@nu.ac.th (O.P.); pajareet@nu.ac.th (P.T.)
*Corresponding author
Abstract—This study aimed to determine the concentration
of PM2.5 (particulate matter less than 2.5 μm in size) and PM10(particulate matter less than 10 μm in size) from traffic exhaust
around bus stations in Uthai Tani Province, Thailand, and to
assess the inhalation exposure of people to PM2.5 and PM10around these bus stations. The PM2.5 and PM10 concentrations
at three stations in the city of Uthai Tani were evaluated using
air quality detectors (model PMS5003) between January and
May 2022. The PM2.5 and PM10 exposure of the people near
those stations was evaluated, and the health risk was
determined based on the hazard quotient (HQ). The results
indicated that the highest daily PM2.5 and PM10 concentrations
were detected at main road in front of the Central Stadium,
with PM2.5 and PM10 concentrations of 58.40 and 64.13 μg/m3,
respectively. The lowest daily PM2.5 and PM10 concentrations
were found at the main bus station in Uthai Tani Province, withPM2.5 and PM10 concentrations of 51.41 and 58.01 μg/m3,
respectively. In addition, during rush hour (7:00 to 8:00 a.m.),
the PM2.5 and PM10 concentrations reached the peak values of
75.25 and 81.07 μg/m3, respectively. From the exposure
assessment, the highest intake of PM2.5 and PM10 for people
nearby were 29.32×10−3 mg/kg-day and 30.96×10-3 mg/kg-day,
respectively at 8:00 a.m. The HQ values from PM2.5 and PM10exposure were both greater than 1.
Keywords—PM2.5, PM10, inhalation exposure assessment,
hazard quotient
Cite: Opas Pukklin and Pajaree Thongsanit, "The Inhalation Exposure of PM2.5 and PM10 from Traffic Exhaust at the Uthai Tani Bus Station and Two Roadside Areas in Uthai Tani, Thailand," International Journal of Environmental Science and Development vol. 15, no. 2, pp. 77-81, 2024.
Copyright © 2024 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
