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目的 了解火锅餐厅营业中的空气卫生质量。方法 于冬季选择石嘴山市35家以液化石油气为燃料的火锅餐厅,主要调查通风状况、微小气候及空气卫生质量,并对营业前后不同通风情况下空气中CO浓度进行比较。结果CO污染最严重,超标率高达63.64％。温、湿度合格率仅20％和12％。雅间关闭门窗打开空调及换气扇,点燃火锅30min后CO为34.3mg/m3,而关闭火锅开门窗10～15 min后CO为6.35mg/m3。就餐者头晕、头疼等不适症状出现率在 CO>15mg/m3时为70.8％,在CO<15mg/m3时仅9.1％。结论 火锅餐厅主要空气污染物为CO。
Objective To understand the air hygiene in the hotpot restaurant business. Methods In the winter, 35 liquefied gas hotpot restaurants in Shizuishan were selected to investigate the ventilation, microclimate and air hygiene quality. The CO concentrations in air before and after different ventilation were compared. The results of CO pollution is the most serious, exceeding the standard rate of 63.64%. Temperature and humidity pass rate of only 20% and 12%. Ya room between the windows and doors to open the air conditioning and ventilation fans, light the pot after 30min CO 34.3mg / m3, and close the pot 10 ~ 15 minutes after opening the door CO 6.35mg / m3. Dizziness, headache and other symptoms of dizziness, dizziness and headache were 70.8% for CO> 15mg / m3 and 9.1% for CO <15mg / m3. Conclusion The main air pollution in Hotpot Restaurant is CO.