摘要
[目的]探讨三氯乙烯(TCE)致职业接触人群听力损伤的作用。[方法]采用自行设计的调查表对职业接触人群进行现场调查,并测定三氯乙烯接触水平、噪声强度以及被调查者听力损失程度。[结果](1)尿中TCE排出量仅与左右耳8kHz高频听阈均值之间存在相关关系,接触工龄与6、8kHz高频听阈值之间均存在相关关系(P﹤0.05或0.01)。(2)同时接触TCE和噪声,其中工龄大于2年组高频听力损伤检出率明显高于不接触TCE但仅接触噪声(噪声强度与TCE接触组近似)的对照组,而且TCE接触组内工龄大于2年组明显高于工龄短于2年的接触组,差异均具有高度统计学意义(P﹤0.01)。[结论]TCE与噪声联合接触可引起以中高频段听阈值提高为特征的听力损伤,TCE对噪声导致的听力损伤具有协同作用。
[Objective] To investigate effects of trichloroethylene （TCE） on occupational exposed workers＇ hearing-loss. [Methods] A self-designed questionnaire was conducted, and the exposed concentration of TCE, thelevel of noise and the degree of hearing-loss were determined. [ Results] （1） The correlations were evident between the level of TCE in urines of workers and the value of 8kHz high frequency auditory threshold, and also betweenexposed years and values of 6, 8kHz high-frequency auditory threshold. （2） The prevalence of high-frequency hearing-loss for workers exposed to TCE and noise was sig-nificantly higher than that only exposed to noise. The prevalence of hearing-loss for workers employed beyond 2 years was higher than that below 2 years, too. [ Conclusion ] Combined contact with TCE and noise may induce middle-frequency and high-frequency hearing-loss.
出处
《现代预防医学》
CAS
北大核心
2008年第9期1611-1615,共5页
Modern Preventive Medicine
基金
2003年广东省医学科研基金资助(A2003277)
关键词
三氯乙烯
听力损失
研究
Trichloroethylene
Hearing-loss
Study
