environment Ambient PM2.5, Polycyclic Aromatic Hydrocarbons and Biomass Burning Tracer in Mae Sot District, Western Thailand Radshadaporn Janta; Kazuhiko Sekiguchi; Ryosuke Yamaguchi; Khajornsak Sopajaree; Siwatt Pongpiachan* School of Social and Environmental Development, National Institute of Development Administration (NIDA); Thaneeya Chetiyanukornkul 04 September 2019
