Halder C A, Van Gorp G S, Hatoum N S, Warne T M
Am Ind Hyg Assoc J. 1986 Mar;47(3):164-72.
Monitoring surveys of gasoline vapor exposures were conducted on truck drivers and terminal operators from five terminal loading facilities, on dockmen and seamen at two tanker/barge loading facilities, and on attendants at a single expressway service plaza. Results revealed wide variations in total C6+ hydrocarbon exposures for each location, with overall 8-hr time-weighted averaged (TWA) geometric means of 5.7 mg/m3 (1.4 ppm) for the terminals, and 4.0 mg/m3 (1.0 ppm) for the service plaza, respectively. The exposures ranged from 0.8 to 120.8 mg/m3 (0.2-30.1 ppm) for the terminals, and from 1.1 to 130.3 mg/m3 (0.3-32.5 ppm) for the service plaza. For the terminals, exposures were not significantly different regardless of loading method or the presence or absence of vapor recovery systems. Comprehensive chemical analyses of terminal employee exposure samples revealed that the C4 and C5 hydrocarbon components constituted 74.8 +/- 9.2% of the total exposure sample on a microgram/sample basis. The C6, C7, and C8+ components constituted 13.0 +/- 1.9, 6.2 +/- 3.0, and 5.9 +/- 7.2% of the total samples, respectively. Comprehensive analyses of the marine employee exposure samples resulted in a similar distribution of components; that is, 66.6 +/- 7.9, 17.5 +/- 4.7, 9.2 +/- 3.1, and 6.4 +/- 1.9% for the C4/C5, C6, C7, and C8+ components, respectively. The composition of the exposures, however, was weighted more toward the C5, C6 and C7 components when compared to the bulk terminal employee exposures.(ABSTRACT TRUNCATED AT 250 WORDS)
对来自五个码头装卸设施的卡车司机和码头操作员、两个油轮/驳船装卸设施的码头工人和海员以及一个高速公路服务广场的工作人员进行了汽油蒸气暴露监测调查。结果显示，每个地点的总C6+碳氢化合物暴露情况差异很大，码头的8小时时间加权平均（TWA）几何平均值总体为5.7毫克/立方米（1.4 ppm），服务广场为4.0毫克/立方米（1.0 ppm）。码头的暴露范围为0.8至120.8毫克/立方米（0.2 - 30.1 ppm），服务广场为1.1至130.3毫克/立方米（0.3 - 32.5 ppm）。对于码头，无论装载方法如何或是否存在蒸气回收系统，暴露情况均无显著差异。对码头员工暴露样本的综合化学分析表明，以微克/样本计，C4和C5碳氢化合物成分占总暴露样本的74.8 +/- 9.2%。C6、C7和C8+成分分别占总样本的13.0 +/- 1.9%、6.2 +/- 3.0%和5.9 +/- 7.2%。对海员暴露样本的综合分析得出了类似的成分分布；即C4/C5、C6、C7和C8+成分分别为66.6 +/- 7.9%、17.5 +/- 4.7%、9.2 +/- 3.1%和6.4 +/- 1.9%。然而，与码头员工总体暴露相比，这些暴露的成分在C5、C6和C7成分上的权重更大。（摘要截短于250字）
