青海某水泥厂生产工人个体噪声暴露水平的测量与分析  

Measurement and Assessment on Personal Noise Exposure Level in Workers of a Cement Factory in Qinghai Province

作　　者：毛辉青[1] 李楠[2] 杨惠莲[1] 王树林[1] 邢永华[1] 曾琳[2] 李会娟[2] 赵一鸣[2] 

机构地区：[1]青海大学医学院公共卫生系,青海西宁810001 [2]北京大学第三医院,北京100191

出　　处：《工业卫生与职业病》2010年第4期197-200,共4页Industrial Health and Occupational Diseases

基　　金：美国NIOSH 1-R01-OH008967基金资助;北京大学第三医院种子基金(YZZ08-20-02)资助

摘　　要：目的调查水泥生产工人个体噪声暴露水平及超标人群的分布。方法用个人声暴露计测量中班工人8小时等效声级(L_(Aeq.8h)),按GBZ 2.2—2007《工作场所有害因素职业接触限值》评价工人的噪声暴露水平是否超标。结果水泥生产工人暴露于非稳态噪声。研磨巡检工、窑巡检工、粉磨巡检工的L_(Aeq.8h)在87.9～93.7dB(A)之间;包装工、空压机工和班长的L_(Aeq.8h)在85.4～86.6 dB(A)之间;吊车工的L_(Aeq.8h)为81.4 dB(A),窑尾工<80 dB(A)。在全厂980名职工中,90人(9.2%)的L_(Aeq.8h)≥90 dB(A);408人(41.6%)的L_(Aeq.8h)在85～89dB(A)之间;其余462人(47.1%)的L_(Aeq.8h)<80 dB(A)。结论水泥生产工人暴露于非稳态噪声,约50%工人的个体噪声暴露水平超过职业接触限值。Objective To investigate levels of personal noise exposure and distribution of over—exposed population.Methods Eight hours equivalent noise levels（LAeq.8h） of workers were measured by personal noise dosimeters.The LAeq.8h was evaluated with national noise criterion GBZ 2.2—2007.Results The cement factory workers were exposed to unsteady noise.LAeq.8h of grinding patrol workers,kiln inspection workers, powder—grinding workers was 90.3～93.7 dB（A）.LAeq.8h of packers,air compressor and team leaders was 85.4～86.6 dB（A）.LAeq.8h of hoist workers was 81.4 dB（A）.That of kiln-end workers was80 dB（A）. Among a total of 980 workers,the LAeq.8h of 90（9.2%） workers was≧ 90 dB（A）.The LAeq.8h of 408（41.6%） workers was 85～89 dB（A）.The LAeq.8h of 462（47.1%） workers was80 dB（A）.Conclusions Workers in the cement factory are exposed to unsteady noise.About 50%of the total workers are over—exposed according to the national noise criterion.

关 键 词：等效声级 非稳态噪声 个人声暴露计 个体噪声暴露 水泥生产 

分 类 号：R134[医药卫生—劳动卫生]