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目的识别金属加工切削油雾中存在的职业病危害因素,为职业病危害因素评价、检测提供依据。方法 用酸性硅胶管采集工作场所空气,采用气相色谱-质谱定性、气相色谱定量方法相结合,对某手机、计算机及其附属设备加工厂金属加工车间的工切削油雾进行检测。结果 车间工作场所空气中的主要化学毒物有乙醇胺、三乙醇胺和乙二醇,其短时间接触浓度分别为366.0～2 933.0、846.1～3 221.0、<0.5～2 301.0 mg/m3;时间加权平均浓度分别为56.8～1 884.3、621.6～1 727.2、<0.5～839.0 mg/m3。该厂除部分岗位监测点乙二醇不超标外,其余监测点均超标。结论应加强对使用金属切削液工作场所的防护,在开展建设项目的检测评价中应增加乙醇胺、三乙醇胺、乙二醇的识别。
Objective To identify the occupational hazards that exist in metalworking cutting oil mist and provide basis for the evaluation and detection of occupational hazards. Methods Acidic tube was used to collect the air in the workplace. Gas chromatograph - mass spectrometry (GC - MS) and gas chromatography were used to detect the oil mist in the metal processing workshop of a mobile phone, computer and its affiliated equipment. Results The main chemical poisons in the workplace air were ethanolamine, triethanolamine and ethylene glycol. The short-term exposure concentrations were 366.0-2 293.0, 846.1-3 221.0, <0.5-2 301.0 mg / m3, respectively. The time weighted average concentration Respectively 56.8 ~ 1 884.3,621.6 ~ 1 727.2, <0.5 ~ 839.0 mg / m3. Except for some post monitoring points ethylene glycol in the plant is not exceeded, the remaining monitoring points are exceeded. Conclusion The protection of workplaces using metal cutting fluid should be strengthened, and the identification of ethanolamine, triethanolamine and ethylene glycol should be increased in the testing and evaluation of construction projects.