喷漆作业时测量烤漆房内3个不同高度水平面的风速,采集和分析呼吸带空气样品中7种挥发性有毒物质的浓度。结果显示,送风口平均风速0.54 m/s,距地面1.5 m平均风速0.23 m/s,吸风口平均风速0.46 m/s,距地面1.5 m水平面的风速可以认为是均匀流。7种物质的时间加权平均浓度(TWA)和短时间接触浓度(STEL)均符合国家职业卫生标准的要求。提示烤漆房中采用均匀流送风比稀释通风具有更高的通风效率,能有效控制室内空气中有害气体的浓度。 During painting, the wind speed of three different height levels in the paint room was measured, and the concentrations of seven volatile toxicants in the air samples of the respiratory zone were collected and analyzed. The results show that the average wind speed at the air outlet is 0.54 m / s, the average wind speed is 1.5 m above the ground and 0.46 m / s at the air inlet. The wind speed at 1.5 m above the ground can be considered as a uniform flow. The time-weighted average concentration (TWA) and short-term exposure concentration (STEL) of 7 substances meet the requirements of national occupational health standards. Prompted that the use of uniform air flow paint room than the dilution ventilation has a higher ventilation efficiency, can effectively control the indoor air concentration of harmful gases.