Comparison of Ezposure Methods in Home Building Carpenters
Quantification of physical exposures are difficult to obtain in many environments but the dynamic nature of the construction industry introduces even greater barriers. Simple methods that may capture a reasonable estimate of the task times and exposures are needed for conducting prevention and intervention studies with construction workers. The purposes of this study were to examine variability of exposures among workers and to evaluate agreement between three different methods for assessing work activities and physical exposures among carpenters in the home building industry. Twelve carpenters participated in three forms of data collection by completing worker daily task cards, work sampling with real-time observations, and consensus ratings of videotaped observations at three different home builds. The three builds differed in size and complexity requiring a different number of days to complete (range 10.4 to 47.3) and using a different number of workers (range 3 to 7). The time distributions varied by task across builds with differences ranging from 3.2％ to 11.6％. Three carpenters worked at two builds and showed differences in task time as large as 22.3％. These factors account for some of the within worker variability that exists in other types of construction trades. Further exploration of the data will examine agreement of task time and exposures using these methods and evaluate statistical differences in worker variance accounting for the size of build, number of workers per build, and worker experience level. These results will help us understand how these simple methods may be used to obtain a reasonable exposure estimate for the overall job for use in epidemiological studies.
Dale AM Jaegers L Abraham R Evanoff BA
Division of General Medical Sciences, Washington University School of Medicine,St. Louis, MO, USA Interventions LLC, Defiance, MO, USA
国际会议
17th World Congress on Ergonomics(第十七届国际人类工效学大会)
北京
英文
1-7
2009-08-09（万方平台首次上网日期，不代表论文的发表时间）