Volume 15 Number 2 (2024)
IJESD 2024 Vol.15(2): 77-81
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

Opas Pukklin* and Pajaree Thongsanit
Faculty of Engineering, Naresuan University, Muang, Phitsanulok, Thailand
Email: opasp64@nu.ac.th (O.P.); pajareet@nu.ac.th (P.T.)
*Corresponding author
Manuscript received February 15, 2023; revised July 25, 2023; accepted November 24, 2023; published March 28, 2024

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

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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).





 General Information

  • ISSN: 2010-0264 (Print); 2972-3698 (Online)
  • Abbreviated Title: Int. J. Environ. Sci. Dev.
  • Frequency: Bimonthly
  • DOI: 10.18178/IJESD
  • Editor-in-Chief: Prof. Richard Haynes
  • Managing Editor: Ms. Cherry L. Chen
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