Abstract
Based on the data of the State of Global Air (2020), air quality deterioration in Thailand has caused ~32,000 premature deaths, while the World Health Organization evaluated that air pollutants can decrease the life expectancy in the country by two years. PM2.5 was collected at three air quality observatory sites in Chiang-Mai, Bangkok, and Phuket, Thailand, from July 2020 to June 2021. The concentrations of 25 elements (Na, Mg, Al, Si, S, Cl, K, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, As, Se, Br, Sr, Ba, and Pb) were quantitatively characterised using energy-dispersive X-ray fluorescence spectrometry. Potential adverse health impacts of some element exposures from inhaling PM2.5 were estimated by employing the hazard quotient and excess lifetime cancer risk. Higher cancer risks were detected in PM2.5 samples collected at the sampling site in Bangkok, indicating that vehicle exhaust adversely impacts human health. Principal component analysis suggests that traffic emissions, crustal inputs coupled with maritime aerosols, and construction dust were the three main potential sources of PM2.5. Artificial neural networks underlined agricultural waste burning and relative humidity as two major factors controlling the air quality of Thailand.
Funder
Thailand Science Research and Innovation
the Strategic Priority Research Program of the Chinese Academy of Sciences
Publisher
Public Library of Science (PLoS)
Reference124 articles.
1. Effects of agricultural waste burning on PM2.5-bound polycyclic aromatic hydrocarbons, carbonaceous compositions, and water-soluble ionic species in the ambient air of Chiang-Mai, Thailand.;C ChooChuay;Polycycl Aromat Compds.,2020
2. The health risks of airborne polycyclic aromatic hydrocarbons (PAHs): Upper North Thailand.;J Kongpran;Geo Health,2021
3. Assessing risks to adults and preschool children posed by PM2.5-bound polycyclic aromatic hydrocarbons (PAHs) during a biomass burning episode in Northern Thailand.;S Pongpiachan;Sci Total Environ,2015
4. Risk perception on haze pollution and willingness to pay for self-protection and haze management in Chiang Mai Province, Northern Thailand.;S Sereenonchai;Atmosphere,2020
5. Understanding of fire distribution in the South Sumatra peat area during the last two decades;R Putra;GEOMATE Journal,2019