Fidler A T, Baker E L, Letz R E
Br J Ind Med. 1987 Feb;44(2):133-41. doi: 10.1136/oem.44.2.133.
Quantifying the exposure of construction painters to mixed organic solvents is difficult in the face of a lack of industrial hygiene data, the heterogeneity of the solvents used, and the variability in work practices which influences the amount of solvents to which a worker is actually exposed. This report describes an attempt to derive an estimate of airborne solvent exposure using questionnaire responses in a population of construction and maintenance painters. This exposure index (EI) is a weighted average of the total number of gallons used a year minus the fraction which would be absorbed by a respirator, where the weights are based on the method of application (spraying, rolling, brushing) and the presence of ventilation (per cent time inside v outside). An analysis performed to determine the sensitivity of the EI to variations in the values chosen for several parameters showed that the index is relatively insensitive to the underlying assumptions that we have used. One component of the EI (self report of hours worked) correlated well with union payroll records. The EI appears to provide a useful relative (not absolute) estimate of airborne exposure to organic solvent mixtures which may be used as a dose surrogate in epidemiological investigations.
鉴于缺乏工业卫生数据、所用溶剂的异质性以及影响工人实际接触溶剂量的工作实践差异，量化建筑油漆工对混合有机溶剂的接触情况颇具难度。本报告描述了一项尝试，即利用建筑和维护油漆工群体的问卷调查回复来估算空气中溶剂接触量。该接触指数（EI）是每年使用的总加仑数减去呼吸器吸收部分后的加权平均值，权重基于应用方法（喷涂、滚涂、刷涂）以及通风情况（室内与室外时间百分比）。为确定EI对若干参数所选值变化的敏感性而进行的分析表明，该指数对我们所采用的基本假设相对不敏感。EI的一个组成部分（自我报告的工作时长）与工会工资记录相关性良好。EI似乎能提供空气中有机溶剂混合物接触量的有用相对（而非绝对）估算值，可在流行病学调查中用作剂量替代指标。
