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May 27, 2026

Polycyclic aromatic hydrocarbon exposure during commuting: A comparative analysis of Bus and Tuk-Tuk in Phnom Penh

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Authors

CPChanvorleak PhatInstitute of Technology of CambodiaSYSereyvath YoeunKKKimleang KhoeurnInstitute of Technology of Cambodia

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Implication

Randomized trial evaluates air pollution exposure in bus and Tuk-Tuk commuters, highlighting health risks.

Key Points

  • This research aims to compare the levels of PM2.5 and polycyclic aromatic hydrocarbons among bus and Tuk-Tuk commuters in Phnom Penh.
  • Conducted over 14 days
  • Used personal air samplers to measure in-vehicle pollutant concentrations
  • Compared average PM2.5 and PAH exposure between Tuk-Tuks and buses
  • Tuk-Tuk commuters had an average PM2.5 concentration of 115.9 ± 36.3 μg/m3 compared to 76.0 ± 39.7 μg/m3 for bus commuters
  • Tuk-Tuk commuters were exposed to average PAH concentrations of 23.40 ± 6.70 ng/m3, while bus commuters had 4.88 ± 1.43 ng/m3
  • Dominant PAHs identified included benzo[a]pyrene, indeno[1,2,3-cd]pyrene, and benzo[ghi]perylene.

Cite This Study

Phat et al. (2026) studied this question.

synapsesocial.com/papers/6a1689ce0c924ddd1bd586afhttps://doi.org/10.1051/e3sconf/202671202004/pdf
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