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[目的 ]了解沥青混凝土拌制作业环境有害因素 ,为防治措施提供科学依据。 [方法 ]采用部颁《劳动卫生工作规范》对作业环境进行监测分析。 [结果 ]工程生产线各粉尘作业点平均浓度全部超标 ;沥青烟浓度参考美国标准 5 mg/ m3评价 ,点合格率为 6 6 .7% ;噪声按《卫生标准》 85分贝评价 ,点合格率为 2 0 .0 % ;夏季作业环境温度 35～ 37℃ ,符合 级高温作业。 [结论 ]沥青混凝土拌制作业的环境存在严重的职业危害 ,必须进一步改善作业环境 ,加强个人防护和职业健康监护。
[Objective] To understand the harmful factors of asphalt concrete mixing operation environment and provide a scientific basis for prevention and control measures. [Method] The Ministry of Labor issued the “Occupational Health and Work Norms” to monitor and analyze the working environment. [Result] The average concentration of all dust operation points in project production line exceeded the standard. Asphalt smoke concentration was evaluated according to the American standard 5 mg / m3, the passing rate was 66.7%; the noise was evaluated according to “Health Standard” 85 decibels, 20.0%; summer operating environment temperature 35 ~ 37 ℃, in line with high-temperature operation. [Conclusion] There is serious occupational hazard in the environment of asphalt concrete mixing operation, the working environment must be further improved, and the personal protection and occupational health monitoring should be strengthened.