CAJ | 학술논문

目的了解液晶显示面板制造业铟及其化合物的接触岗位和接触水平,对其职业危害程度进行评价.方法对广东省深圳市3家液晶显示面板生产企业和104名接触人员进行调查,通过现场职业卫生学调查、职业危害因素检测和职业健康检查对该行业铟及其化合物的职业危害程度等进行评价.结果该行业溅射机操作岗位接触的铟及其化合物的时间加权平均(TWA)浓度为＜0.002～0.004mg/m3,短时间接触浓度(STEL)为＜0.006～0.007 mg/m3,均符合国家职业卫生标准(PC-TWA为0.1 mg/m3,PC-STEL为0.3 mg/m3);维保打磨岗位接触的铟及其化合物的TWA为0.114～2.98 mg/m3,STEL为0.31～10.02 mg/m3,均超过国家职业卫生标准,最高浓度超标33倍.104名接触人员职业健康检查结果显示,未发现明显的健康损害效应.结论该行业铟及其化合物职业危害的关键控制点在维保打磨岗位,为其配备防颗粒物全面罩呼吸器,能有效防护铟及其化合物职业危害.
목적 료해액정현시면판제조업인급기화합물적접촉강위화접촉수평,대기직업위해정도진행평개.방법 대광동성심수시3가액정현시면판생산기업화104명접촉인원진행조사,통과현장직업위생학조사、직업위해인소검측화직업건강검사대해행업인급기화합물적직업위해정도등진행평개.결과 해행업천사궤조작강위접촉적인급기화합물적시간가권평균(TWA)농도위＜0.002～0.004mg/m3,단시간접촉농도(STEL)위＜0.006～0.007 mg/m3,균부합국가직업위생표준(PC-TWA위0.1 mg/m3,PC-STEL위0.3 mg/m3);유보타마강위접촉적인급기화합물적TWA위0.114～2.98 mg/m3,STEL위0.31～10.02 mg/m3,균초과국가직업위생표준,최고농도초표33배.104명접촉인원직업건강검사결과현시,미발현명현적건강손해효응.결론 해행업인급기화합물직업위해적관건공제점재유보타마강위,위기배비방과립물전면조호흡기,능유효방호인급기화합물직업위해.
Objective To understand the exposed positions and levels of indium and its compounds in manufacture of liquid crystal displays,and to evaluate the degree of occupational hazard from indium and its compounds.Methods On-site investigation of occupational health,occupational hazard monitoring,and occupational health examination were used to evaluate the degree of occupational hazard from indium and its compounds in three manufacturers of liquid crystal display panel in Shenzhen,Guangdong,China.Results The time-weighted average (TWA) and short-term exposure limit (STEL) concentrations of indium and its compounds to which sputtering machine operating positions were exposed were less than 0.002～0.004 mg/m3 and 0.006～0.007 mg/m3,respectively,both of which complied with the National Hygienic Standard (PC-TWA =0.1 mg/m3; PC-STEL =0.3 mg/m3); the TWA and STEL concentrations of indium and its compounds to which grinding positions were exposed were 0.114～2.98 mg/m3 and 0.31～10.02 mg/m3,respectively,both of which exceeded the National Hygienic Standard with the highest concentration 33-fold higher than the slandard.No significant health damages were found in exposed workers according to the results of occupational health examination.Conclusion The grinding positions are the key to the control of occupational hazard from indium and its compounds in manufacture of liquid crystal display panel.The workers should be equipped with the antiparticulate full-face respirator,which is an effective way to prevent occupational hazard from indium and its compounds.