Kearney C A, Dunham D B
Am Ind Hyg Assoc J. 1986 Sep;47(9):535-9. doi: 10.1080/15298668691390188.
Gasoline vapor concentrations were measured at a high volume service station for one week in May, 1983, for service station attendants, self-service customers and for various area locations. To facilitate the retention of highly volatile, low-molecular weight gasoline vapor components, 100/50 mg charcoal adsorption tubes were used with flow rates of 100 cc/min for long-term exposure samples and 900 cc/min for short-term exposures. Methylene chloride was selected as the desorption solvent. Desorbed hydrocarbons were analyzed and quantitated by capillary column gas chromatography using a flame ionization detector and a 0-100 degrees C temperature program. The data proved that the predominant ambient air hydrocarbons are those of C4 and C5 compounds. Monitoring results showed that the total gasoline vapor TWA exposures for service station attendants ranged from 0.6 to 4.8 ppm with a geometric mean of 1.5 ppm. Short-term personal samples collected while refueling ranged from not detectable to 38.8 ppm with a geometric mean of 5.8 ppm.
1983年5月，在一个大型加油站对加油站工作人员、自助加油顾客以及不同区域位置的汽油蒸汽浓度进行了为期一周的测量。为便于保留高挥发性、低分子量的汽油蒸汽成分，使用了100/50毫克的活性炭吸附管，长期暴露样品的流速为100毫升/分钟，短期暴露的流速为900毫升/分钟。选择二氯甲烷作为解吸溶剂。通过使用火焰离子化检测器和0至100摄氏度温度程序的毛细管柱气相色谱法对解吸的碳氢化合物进行分析和定量。数据证明，环境空气中主要的碳氢化合物是C4和C5化合物。监测结果表明，加油站工作人员的汽油蒸汽8小时时间加权平均暴露总量在0.6至4.8 ppm之间，几何平均值为1.5 ppm。加油时采集的短期个人样品浓度范围从检测不到到38.8 ppm，几何平均值为5.8 ppm。
