视屏显示终端室职业环境的卫生学调查

Investigation of occupational environment in VDT workroom

调查了上海地区12个单位有中央空调的视屏显示终端室内的职业环境。结果为气温16.5～24℃,相对湿度39～71%,风速0.02～0.3m/s,空气中CO_2浓度900～2052mg/m^3,细菌总数300～4500个/m^3,臭氧浓度0～2.5ppb。询问了71名工作人员主观感觉均有不适感。提示被调查的视屏显示终端室的空调环境空气不洁,臭氧浓度偏低;均有待改进。

Occupational environment in 12 VDT workrooms with central air conditioner was investigated in Shanghai. The results were as follows: the temperature was between 16.5～ 24℃, the relative humidity was 39～71%, the wind speed was 0.02～0.3m/s, the CO_2 concentration in air was 900～2052mg/m^3, the total bacteria counts was 300～4500 per kilolitre, the O_3 concentration in air was 0～0.005 mg/m^3, all of the 71 staffs felt uncomfortable in VDT workroom. It suggested that since the environment in those 12 VDT workrooms was dirty, and O_3 concentration in air was low, improvement was needed.