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Atmospheric Polycyclic Aromatic Hydrocarbons (PAHs) at Two Sites, in Bursa, Turkey: Determination of Concentrations, Gas-Particle Partitioning, Sources, and Health Risk.
Archives of Environmental Contamination and Toxicology ( IF 4 ) Pub Date : 2020-01-04 , DOI: 10.1007/s00244-019-00698-7
Emine Gurkan Ayyildiz 1 , Fatma Esen 1
Affiliation  

This study investigated the concentration of polycyclic aromatic hydrocarbons (PAHs) using particle and gas-phase air samples collected in the Ovaakca and Cumalikizik region of Bursa, between May and September 2017. The concentration of Σ16PAH measured in the gas phase, for Ovaakca and Cumalikizik, were 5.32 ± 1.98 and 4.91 ± 3.41 ng m-3, respectively; and for the particle phase, 0.81 ± 0.56 and 1.84 ± 1.82 ng m-3, respectively. The coefficient of gas-particle partitioning was related to the excessive cooled vapor pressure. The determined slope values were - 0.319 (Ovaakca) and - 0.505 (Cumalikizik), which showed the strong effect of organic carbon absorption and the distance to the equilibrium. These experimental values were compared with the results obtained using the octanol/air and Dual partition models, and Dual partition model showed more accurate values than the octanol/air model. The relations between temperature and concentration in the gas phase of PAHs were evaluated using the Clausius-Clapeyron equation. The results indicated the influence of long-range transport of the atmospheric concentrations of PAHs at the regions. Diagnostic ratio analysis showed that biomass burning, coal combustion, and vehicular emissions contributed greatly to the atmospheric PAHs in the regions. In principal component analysis analysis, wood-burning was found to be the predominant parameter in addition to PAH sources determined with diagnostic ratios. In this study, the lifetime risk of lung cancer was calculated according to the mean and max BaP-TEQ values. When calculated according to the average values, while both regions were acceptable risk levels (Ovaakca: 2.6 × 10-6 and Cumalikizik: 8.6 × 10-6), at low-risk level was determined according to max BaP-TEQ values only in the Cumalikizik region (1.93 × 10-5).

中文翻译:

土耳其布尔萨两个地点的大气多环芳烃(PAH):浓度测定,气体-颗粒分配,来源和健康风险。

这项研究使用2017年5月至2017年9月在布尔萨Ovaakca和Cumalikizik地区收集的颗粒和气相空气样本调查了多环芳烃的浓度。气相色谱法测定了Ovaakca和Cumalikizik的Σ16PAH浓度。分别为5.32±1.98和4.91±3.41 ng m-3;对于粒子相,分别为0.81±0.56和1.84±1.82 ng m-3。气体颗粒分配系数与过大的冷却蒸气压有关。测得的斜率值为-0.319(Ovaakca)和-0.505(Cumalikizik),显示出对有机碳吸收的强烈影响以及到平衡点的距离。将这些实验值与使用辛醇/空气和双重分配模型获得的结果进行比较,双分区模型显示出比辛醇/空气模型更准确的值。使用Clausius-Clapeyron方程评估了PAHs气相中温度与浓度之间的关系。结果表明该地区大气中PAHs的远距离迁移的影响。诊断比分析表明,生物质燃烧,燃煤和车辆排放对该地区的大气多环芳烃贡献很大。在主成分分析中,除以诊断率确定的多环芳烃来源外,燃木是主要参数。在这项研究中,根据平均和最大BaP-TEQ值计算了肺癌的终生风险。根据平均值计算时,两个区域的风险水平都可以接受(Ovaakca:
更新日期:2020-03-20
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