执行周双休日之后煤港工人的安全工作年限

Safe Working Period of Time for Coal Loaders at Harbours under New Working System

周双休日后煤港工人轮班制度发生了变化，累积接尘时间减少了．对新工时下累积接尘量的影响因素进行了分析，计算了累积接尘量剩余。

The accumulated time of inhaling coal dust for coal loaders at harbors is less in five work days weekly than that in six days per week.Analyzed are the affecting factors of accumulated amount of breathing in coal dust under new work schedule.The sale surplus of accumulated amount of inhaling coal dust is calculated for those who have worked several years under old work schedule.The safe working period of time for new work schedule is given under different coal dust concentrations.