南普陀寺内外大气颗粒物中PAHs的污染研究

The Characteristics of Particulate PAHs in the Inside and Outside of South Putuo Temple Air

采集并分析了南普陀寺庙寺内外大气颗粒物中16种优控PAHs,寺内浓度(19.16～55.76 ng/m3)与车站浓度(33.32～123.28 ng/m3)相当,但都大于厦大校园站点的浓度(8.06～34.37 ng/m3).南普陀寺内和车站样品中苯并[ghi]苝的贡献最大,且寺内样品中能检出较高含量的惹烯.典型特征化合物比值分析表明,大气颗粒物中PAHs主要来自交通源(汽车尾气).

Total suspended particles （TSP） samples from inside of south putuo buddhist temple （SPT）,a bus terminal in the busy traffic area,and a building on the campus of Xiamen University,China were collected from July 31 to August 15,2006. The particulate samples were analyzed for polycyclic aromatic hydrocarbons （PAHs） to and the aim is investigate the influence of incense burning and vehicle emissions on the local environment, respectively. The concentrations range of 16 PAHs in TSP samples were 19. 16-55.76 ng/m^3 , 33.32 - 123.28 ng/m^3 and 8.06-4. 37 ng/m^3 for SPT, bus terminal and campus, respectively. The characteristic compound of retene from wood burning was detected is SPT samples , and the biggest contribution of PAH compound in both SPT and bus terminal samples was from Benzo[ghi]perylene. The major sources of PAHs in all the TSP samples were believed from vehicle emissions （gasoline exhaust） based on the results from PAH diagnostic ratios.