Cetin Eylem, Odabasi Mustafa, Seyfioglu Remzi
Dokuz Eylul University, Faculty of Engineering, Department of Environmental Engineering, Kaynaklar Campus, 35160 Buca, Izmir, Turkey.
Sci Total Environ. 2003 Aug 1;312(1-3):103-12. doi: 10.1016/S0048-9697(03)00197-9.
Air samples were collected between September 2000 and September 2001 in Izmir, Turkey at three sampling sites located around a petrochemical complex and an oil refinery to measure ambient volatile organic compound (VOC) concentrations. VOC concentrations were 4-20-fold higher than those measured at a suburban site in Izmir, Turkey. Ethylene dichloride, a leaded gasoline additive used in petroleum refining and an intermediate product of the vinyl chloride process in the petrochemical complex, was the most abundant volatile organic compound, followed by ethyl alcohol and acetone. Evaluations based on wind direction clearly indicated that ambient VOC concentrations measured were affected by the refinery and petrochemical complex emissions. VOC concentrations showed seasonal variations at all sampling sites. Concentrations were highest in summer, followed by autumn, probably due to increased evaporation of VOCs from fugitive sources as a result of higher temperatures. VOC concentrations generally increased with temperature and wind speed. Temperature and wind speed together explained 1-60% of the variability in VOC concentrations. The variability in ambient VOC concentrations that could not be explained by temperature and wind speed can be attributed to the effect of other factors (i.e. wind direction, other VOC sources).
2000年9月至2001年9月期间，在土耳其伊兹密尔的一个石化综合设施和一座炼油厂周围的三个采样点采集了空气样本，以测量环境挥发性有机化合物（VOC）浓度。VOC浓度比在土耳其伊兹密尔一个郊区站点测得的浓度高4至20倍。二氯乙烷是石油炼制中使用的含铅汽油添加剂，也是石化综合设施中氯乙烯生产过程的中间产物，是含量最高的挥发性有机化合物，其次是乙醇和丙酮。基于风向的评估清楚地表明，测得的环境VOC浓度受到炼油厂和石化综合设施排放物的影响。所有采样点的VOC浓度均呈现季节性变化。夏季浓度最高，其次是秋季，这可能是由于较高温度导致VOC从逸散源的蒸发增加所致。VOC浓度通常随温度和风速升高。温度和风速共同解释了VOC浓度变化的1%至60%。无法由温度和风速解释的环境VOC浓度变化可归因于其他因素的影响（即风向、其他VOC来源）。
