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A coal mine and coal preparation plant coal dust workplace present situation investigation and analysis
Author(s): 
Pages: 306-308
Year: Issue:  4
Journal: Chinese Journal of Industrial Hygiene and Occupational Diseases

Keyword:  Coal miningOccupational exposureEnvironmental monitoring;
Abstract: 目的 通过对某矿井及选煤厂工作场所煤尘的检测,了解职业危害现状,并对其职业危害控制效果进行评价.方法 根据生产工艺流程及GBZ159-2004<工作场所空气中有害物质监测的采样规范>等标准确定煤尘采样点和采样方法.结果 井下采掘工序受检的21个工种的煤尘时间加权平均浓度(TWA)合格率为28.6%,其中有5个工种的粉尘危害等级为Ⅱ级,6个工种的粉尘危害等级为0级,其余工种的粉尘危害等级均为Ⅰ级.选...
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