中文摘要：

背景基于任务的测量(TBM ) 是一个方法估计八小时的 A 加权的相等的噪音暴露水平(LAeq。8h ) 而且量筒。TBM 能被无职业的工人和 staffs.However 更好在工厂里使用，如果 TBM 一般来说与为 LAeq.8h 测量的量筒相等或类似，它仍然不是清楚的。这研究与量筒把测量看作了真实个人噪音暴露水平( PNEL )并且由在 LAeq.8h measurement.Methods 比较 TBM 和量筒的一致性估计了 TBM 的精确性学习在暴露于不稳定的 noise.Dosimeters 的 387 个工人之中在一个汽车公司被进行， TBM 被用来比较二策略并且估计同意的度和争论的原因。工人的 PNEL 为噪音经由 TBM 被测量；真实 PNEL 也被记录。为噪音的 TBM 被计算，任务 / 位置噪音层次经由健全水平米和工人经由参加者自己填写的工作日记表格(WDF ) 收集的暴露信息测量了。经由个人噪音量筒的完整移动的噪音暴露测量作为真实 PNEL 被拿。一般线性模型(GLM ) 被造为有 TBM 的 LAeq.8h 是的噪音和真实 PNEL.Results 为噪音和 TBM 之间的差别的来源分析 TBM 的精确性比真实 PNEL 稍微高，除了电工。二值的差别在印上工人(P 0.001 ) 有统计意义，汇编工人(P=0.015 ) 和焊接工人(P=0.001 ) 。有 TBM 和真实 PNEL 的 LAeq.8h 的关联系数是 0.841。二结果的差别被真实 PNEL 主要影响(F=11.27， P=0.001 ) ；并且工作组(F=3.11， P 0.001 ) 由工作划分了，专题讨论会也是独立因素。有固定任务 / 位置的工人的 PNEL ((86.53

英文摘要：

Background Task-based measurement （TBM） is a method to assess the eight-hour A-weighted equivalent noise exposure level （LAeq. 8h） besides dosimeter. TBM can be better used in factories by non-professional workers and staffs.However, it is still not clear if TBM is equal or similar with dosimeter for LAeq.8h measurement in general. This study considered the measurement with dosimeter as real personal noise exposure level （PNEL） and assessed the accuracy of TBM by comparing the consistencies of TBM and dosimeter in LAeq.8h measurement.Methods The study was conducted in one automobile firm among 387 workers who are exposed to unstable noise.Dosimeters and TBM were used to compare the two strategies and assess the degree of agreement and causes of disagreement. Worker＇s PNEL was measured via TBM for noise; the real PNEL was also recorded. The TBM for noise was computed with task/position noise levels measured via sound level meter and workers＇ exposure information collected via working diary forms （WDF） filled by participants themselves. Full-shift noise exposure measurement via personal noise dosimeters were taken as the real PNEL. General linear model （GLM） was built to analyze the accuracy of TBM for noise and the source of difference between TBM for noise and real PNEL.Results The LAeq.8h with TBM were slightly higher than the real PNELs, except the electricians. Differences of the two values had statistical significance in stamping workers （P ＜0.001）, assembly workers （P=0.015） and welding workers （P=0.001）. The correlation coefficient of LAeq.8h with TBM and real PNELs was 0.841. Differences of the two results were mainly affected by real PNEL （F=11.27, P=0.001）; and work groups （F=3.11, P ＜0.001） divided by jobs and workshops were also independent factors. PNEL of workers with fixed task/position （（86.53±8.82） dB（A）） was higher than those without （（75.76±9.92） dB（A）） （t=8.84, P ＜0.01）. Whether workers had fixed task/position was a