摘要
[目的]了解石灰石粉尘对肺通气功能的危害,为制订防护措施提供科学依据。[方法]2007年,在济南市市属某大型工厂石灰石生产车间,对360名作业场所进行空气中粉尘检测,对360名接尘工人进行肺通气功能测定与呼吸道症状罹患情况调查,并与360名对照人员比较。[结果]作业场所粉尘最高浓度,粉料仓库为7.4 mg/m3,其他工序均超过8 h时间加权平均浓度容许的最高浓度8 mg/m3。胸闷、气促、咳嗽、咳痰罹患率接尘组均高于对照组(P<0.01);肺通气功能的各项指标(VC、FVC、MVV、FEV1.0、FEV1.0%、MMEF)接尘组均低于对照组(P<0.01或<0.05)。[结论]长期从事石灰石作业可对肺功能造成损害。
[Objective] To know the damage of pulmonary function caused by dust of limestone-powder,and provide scientific basis for measures of health protection.[Methods]The concentration of dust in air in the workshop of limestone production was tested for 360 workers in Ji＇nan in 2007.Pulmonary function examination and investigation on the symptoms of respiratory tract were conducted for 360 workers exposed to the dust in comparison with other 360 persons in control group.[Results]The highest concentration of dust in the warehouse of limestone materials was 7.4mg/m3 and the threshold limit value（TLV） of time weighted average concentration over 8 hours was 8 mg/m3 in other process.The incidence of chest tightness,shortness of breath,cough,expectoration was higher in the workers exposed to the dust than that in control group（P0.01）.The value of VC,FVC,MVV,FEV1.0,FEV1.0% and MMEF was lower in group exposed to dust than that in control group（P0.01 or P0.05）.[Conclusion]Damage on pulmonary function can be caused by long-time exposing to dust of limestone-powder.
出处
《预防医学论坛》
2011年第2期121-123,共3页
Preventive Medicine Tribune
关键词
石灰石粉尘
肺功能
Limestone-powder
Pulmonary function
