[Safety test of air quality in simulated moxibustion clinic]

The air quality of simulated moxibustion clinic was tested, which could provide references for the evaluation on air pollution in moxibustion clinic. After the clinical environment of moxibustion was established,the contents of CO,NO₂, PM 10 and PM 2.5 in the air at 5 different time points (0.5 h, 1 h and 2 h after 10 moxa sticks were ignited as well as 5 min ventilation after 0.5 h moxibustion burning and 5 min ventilation after 1 h moxibustion burning) were measured by testing organizations.0.5 h, 1 h and 2 h after 10 moxa sticks were ignited, the content ranges of CO,NO₂, PM 10 and PM 2.5 in the air were 15.9 to 37.0 mg/m³,0.012 6 to 0.022 4 mg/m³,0.22 to 1.28 mg/m³ and 0.13 to 0.53 mg/m³, respectively; the contents of CO, PM 10 and PM 2.5 were higher than national standard. With 5 min ventilation after 0.5 h moxibustion burning and 5 min ventilation after 1 h moxibustion burning, the content ranges of CO,NO₂,PM 10 and PM 2.5 were 0.3 to 0.4 mg/m³,0.015 5 to 0.018 0 mg/m³,0.11 to 0.13 mg/m³ and 0.04 mg/m³, respectively; the contents of CO, PM 10 and PM 2.5 were lower than national standard. It is concluded that long-time moxibustion could cause relatively high concentration of moxa smoke, and the contents of CO, PM 10 and PM 2.5 in the air will exceed the national standard. However, by keeping good ventilation, the contents of CO,NO₂,PM 10 and PM 2.5 in the air can be controlled within safe ranges.