Polycyclic aromatic hydrocarbons in the ambient air of suburban and industrial regions of central Taiwan.

摘要: Abstract The concentrations of gas-phase and particle-bound polycyclic aromatic hydrocarbons (PAHs) were measured simultaneously at an industrial area (Taichung Industrial Park) a suburban (Tunghai University Campus) in Taichung, Taiwan. Twenty-four hours samplings for two consecutive days performed between August December 2002 both sampling sites. Ambient air PAHs collected on quartz filters glass cartridges using PUF Sampler, respectively. Both types samples extracted with DCM/n-hexane mixture (50/50, v/v) 24 h, then the extracts subjected to gas chromatography–mass spectrometric (GC–MS) analysis. Total Taichung Park (TIP) site Tunghai Campus (THUC) found be 1232.3 ± 963.6 609.8 ± 356.3 ng/m3, Stationary combustion processes mainly responsible sources TIP site, while traffic vehicle exhaust was largest contributor THUC site.