Nieuwenhuijsen M J, Lowson D, Venables K M, Newman Taylor A J
Department of Occupational and Environmental Medicine, National Heart and Lung Institute, Royal Brompton and National Heart Hospital, London, U.K.
Ann Occup Hyg. 1995 Jun;39(3):299-305.
As part of a longitudinal study to explore the exposure-response relationship between flour dust exposure and work-related symptoms and skin sensitivity the authors formed exposure groups and estimated various components of variability. This paper describes the between-exposure group, the between-worker and the within-worker variation of personal flour dust exposure in bakeries, flour mills and packing stations. In total 346 samples were collected in 13 exposure groups. The geometric means of the exposure groups ranged from 0.3 up to 9.0 mg m-3. Between-worker variances within exposure groupings were less than the overall between-worker component although substantial differences in exposure between workers remained in some exposure groups. Overall the largest variance component was the between-exposure group component followed by the considerably smaller between-worker and within-worker components.
作为一项纵向研究的一部分，为了探索面粉粉尘暴露与工作相关症状及皮肤敏感性之间的暴露-反应关系，作者组建了暴露组并估算了变异性的各个组成部分。本文描述了面包房、面粉厂和包装站中各暴露组之间、工人之间以及工人内部个人面粉粉尘暴露的变异性。总共在13个暴露组中收集了346个样本。暴露组的几何平均值范围为0.3至9.0毫克/立方米。尽管在一些暴露组中工人之间的暴露仍存在显著差异，但暴露组内工人之间的方差小于总体工人之间的组成部分。总体而言，最大的方差成分是暴露组之间的成分，其次是小得多的工人之间和工人内部的成分。
