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按照《工作场所空气中有害物质监测的采样规范》(GBZ159—2004)检测某煤井和选煤厂煤尘时间加权平均浓度(TWA),总煤尘合格率40%,呼吸性煤尘合格率55%,定点采样煤尘合格率90%,噪声合格率38.9%。提示煤尘和噪声超标严重,建议加强日常通风和防尘、防噪管理,加强个人防护和职业健康监护,防止职业病的发生。
According to the “Sampling Specification for Monitoring of Hazardous Substances in Workplace” (GBZ159-2004), the time-weighted average concentration (TWA) of coal dust in a coal mine and coal preparation plant is measured. The passing rate of total coal dust is 40% and the passing rate of respirable coal dust 55%, fixed-point sampling coal dust passing rate of 90%, the noise pass rate of 38.9%. Prompted coal dust and excessive noise seriously, it is recommended to strengthen routine ventilation and dust, noise management, strengthen personal protection and occupational health monitoring, to prevent occupational diseases.