【摘要】 目的 了解西部某市地铁一、二、三号线运营维保工作噪声危害程度，为其运营维保噪声危害防治工作提供依据。方法 2019年10—11月采用现场职业卫生调查与检测方法对西部某市地铁一、二、三号线运营维保噪声危害进行测量与分析。结果 本次检测涉及9种主要岗位，共计260个测量点，正线涉及5种岗位，工人接触噪声L_{EX,8 h/40 h}在49.9～82.1 dB（A），均符合职业病危害限值要求；车辆段及停车场涉及4种岗位，工人接触噪声L_{EX,8 h}在69.3～95.9 dB（A），超标率为43.8%。结论 西部某市地铁一、二、三号线运营维保工作噪声危害较重岗位主要集中在车辆段及停车场的检修作业，需采取相应降噪措施，加强个人防护及职业卫生管理工作。更多还原

【Abstract】 Objective To understand the harmful degree of operation and maintenance noise of metro line 1,2,3 in a western city,provide the basis for the noise prevention and control work.Methods The methods of field occupational hygienic investigation and detection were used for measurement and analysis on operation and maintenance noise of metro line 1,2,3 in a western city from October to November 2019.Results This study involved nine main posts and a total of 260 measuring points.In the main lines of metro,involving five kinds of posts,and the noise(L_EX,8h/40h) of exposed workers ranged 49.9-82.1 dB（A）,which all met the occupational hazard limit requirements.In the car depots and parks of metro,involving four kinds of posts,the noise(L_EX,8h/40h) of exposed workers ranged 69.3-95.9 dB（A）,which the over-standard rate was 43.8%.Conclusion In the metro line1,2,3 in a western city,the posts with serious noise hazard are mainly concentrated in the maintenance operation of the metro’s car depots and parks,and it is necessary to take corresponding engineering measures of noise reduction,and strengthen personal protection and occupational health management.更多还原