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首页> 外文会议>Tenth International Conference on Modelling, Monitoring and Management of Air Pollution Jul, 2002 City of Segovia >The relationship between volatile organic profiles and emission sources in ozone episode region
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The relationship between volatile organic profiles and emission sources in ozone episode region

机译：臭氧事件区挥发性有机物剖面与排放源的关系

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This study investigates the relationship between volatile organic profiles in the atmosphere and emission sources in ozone episode region. Dynamometer and industrial stacks sampling work in the industrial complex were conducted to obtain the fingerprints of vehicle emissions and stationary sources. In addition, full-scale field sampling on the main VOC concentration in monitoring stations using USEPA method TO-14a on photochemical and non-photochemical event days were done by canisters. The contributions of VOC emissions from different sources were also estimated by back-trojectory model and chemical mass balance model (CMB 8.0). Field measurement data indicate that the daily average concentrations of total VOCs were 87.3-233.7μg /m~3 at different sites. The values of mass fraction for paraffin, oleffin and aromatic VOCs at these sites were 28-47%, 7-12%, and 41-52%, respectively. Toluene is the dominant species among the VOCs and is followed by isopentane, n-butane, and 1,2,4-trimethylbehzene. For the city and suburban monitoring stations, the exhausts of vehicle are the major contributors of VOC in southern Taiwan. The contributions of total non-methane hydrocarbon (t-NMHC) for CMB simulation are respectively 28-51%, 9-24%, 14-33%, 13-46% and 0.1-2.4% from passenger cars, motorcycles, industrial sources, coatings (solvent) and biogenic contributions among all stations. The proportions of biogenic contribution was similar to the overseas researches and being an outstanding characteristic at noon.
机译：这项研究调查了大气中的挥发性有机剖面与臭氧发作区域的排放源之间的关系。在工业园区内进行了测功机和工业烟囱的采样工作，以获取车辆排放物和固定源的指纹。此外，在滤罐上使用USEPA方法TO-14a在光化学事件日和非光化学事件日对监测站的主要VOC浓度进行了全面的现场采样。还通过反演模型和化学物质平衡模型（CMB 8.0）估算了不同来源的VOC排放的贡献。现场测量数据表明，不同地点的总VOCs的日平均浓度为87.3-233.7μg/ m〜3。这些部位的石蜡，烯烃油和芳香族VOC的质量分数分别为28-47％，7-12％和41-52％。甲苯是挥发性有机化合物中的主要物质，其次是异戊烷，正丁烷和1,2,4-三甲基苯。对于城市和郊区的监测站，车辆的排气是台湾南部VOC的主要贡献者。乘用车，摩托车，工业来源的总非甲烷碳氢化合物（t-NMHC）对CMB模拟的贡献分别为28-51％，9-24％，14-33％，13-46％和0.1-2.4％ ，所有站之间的涂料（溶剂）和生物成因。生源贡献的比例与国外研究相似，是中午的突出特征。

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