Characterization, identification of ambient air and road dust polycyclic aromatic hydrocarbons in central Taiwan, Taichung
Characterization, identification of ambient air and road dust polycyclic aromatic hydrocarbons in central Taiwan, Taichung
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DOI：
10.1016/j.scitotenv.2003.10.016
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发表时间：
2004-07-05
影响因子：
9.8
通讯作者：
Chen, MH
中科院分区：
文献类型：
--
作者：
Fang, GC;Chang, CN;Chen, MH
对台中工业区(台中工业园)和郊区(东海大学、清华大学)环境空气中多环芳烃(PAHs)的浓度进行了同步测量。2002年8月至2003年3月期间，在这两个地点同时采集了样本。用泡沫塑料采样器采集石英滤清器上的颗粒结合多环芳烃(p-PAHs)和玻璃滤芯上的气相多环芳烃(g-PAHs)。两种样品均用二氯甲烷/正己烷(50/50，v/v)混合溶剂提取24 h，然后进行气相色谱/质谱分析。此外，还在TIP、清华和交通道路采样点采集了路边扬尘颗粒物多环芳烃组成并进行了分析。选取台中市五条主干道作为交通道路抽样点。多环芳烃浓度与气象参数的相关性研究表明，温度对多环芳烃和对位多环芳烃的影响大于风速、相对湿度和大气压力等气象参数(P>；0.6)。利用主成分分析和诊断率对多环芳烃的来源进行了解析。在台湾中部的两个采样点，多环芳烃的主要来源是燃烧、交通车辆废气(柴油和汽油发动机)、焚化炉和工业固定源。(C)2003爱思唯尔B.V.保留所有权利。
The concentrations of ambient air polycyclic aromatic hydrocarbons (PAHs) were measured simultaneously in an industrial area (Taichung Industrial Park, TIP) and suburban area (Tunghai University, THU) in central Taiwan, Taichung. A total of samples were collected simultaneously at the two sites between August 2002 and March 2003. Particle-bound PAHs (p-PAHs) were collected on quartz filters and gas-phase PAHs (g-PAHs) on glass cartridges using polyurethane foam sampler, respectively. Both types of samples were extracted with dichloromethane/n-hexane mixture (50/50, v/v) for 24 h, then the extracts were subjected to gas chromatography/mass spectrometric analysis. Moreover, the roadside dust particle PAHs composition were also collected and analyzed at TIP, THU and traffic road sampling sites. The five main road lines in Taichung City were selected as traffic road sampling sites. Correlation studies between PAHs concentrations and meteorological parameters were revealed that temperature has greater effects (P>0.6) than other meteorological parameters such as wind speed, relative humidity and atmospheric pressure on PAHs and p-PAHs. PAHs sources were resolved by using principal component analysis and diagnostic ratios. The major sources of PAHs were combustion, traffic vehicle exhaust (diesel and gasoline engine), incinerator and industrial stationary sources at both sampling sites in central Taiwan. (C) 2003 Elsevier B.V. All rights reserved.