The Health Risks of Airborne Polycyclic Aromatic Hydrocarbons (PAHs): Upper North Thailand.

ABSTRACT: Every year, Northern Thailand faces haze pollution during the haze episode. The particulate matter (PM), including fine fraction (PM_2.5), a coarse fraction (PM_2.5-10), and 16 polycyclic aromatic hydrocarbons (PAHs), was measured in six provinces in upper north Thailand during the haze and non-haze episodes in 2018. Eighty-three percent of the PM_2.5 measurements (21.8-194.0 µg/m³) during the haze episode exceeded the national ambient air quality standard in Thailand. All 16 PAHs were detected in the study area in both periods. The average concentration of total PAHs (particle-bound and gas-phase) during the haze episode was 134.7 ± 80.4 ng/m³, which was about 26 times higher than those in the non-haze (5.1 ± 9.7 µg/m³). Napht

SUBMITTER: Kongpran J 

PROVIDER: S-EPMC8025847 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature