Nanoparticles and particle-bound polycyclic aromatic hydrocarbons (PAHs) were investigated in three
different land-use areas in Bangkok’s ambient air, in Thailand, namely, the roadside area, the mixed
commercial/residential area, and the background area, in order to accurately evaluate environmental and health
effects with respect to the particle size. Particles fractionated down to nano-size (
Nanoparticles and particle-bound polycyclic aromatic hydrocarbons (PAHs) were investigated in threedifferent land-use areas in Bangkok’s ambient air, in Thailand, namely, the roadside area, the mixedcommercial/residential area, and the background area, in order to accurately evaluate environmental and healtheffects with respect to the particle size. Particles fractionated down to nano-size (<70 nm) and particle-boundPAHs were experimentally evaluated using a nanosampler with an “inertial filter” stage of 70 nm cutoff size.
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