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目的使用室内空气质量自动监测系统对大型综合商业场所室内空气污染物进行连续监测,了解空气质量现况,并分析不同功能区域间空气质量的差异,探讨主要影响因素。方法 2012年12月—2013年2月利用自动监测设备对北京市2个大型综合商业场所的卖场区、餐饮区和影院区进行空气质量的连续监测,监测时间覆盖整个营业期,监测指标为PM10、甲醛、CO和CO2,并对监测结果汇总分析。结果在商业场所内共设置7个监测点,采集有效数据583组。综合商业场所空气中PM10、甲醛、CO和CO2污染水平分别为(100.7±92.4)μg/m3、(0.07±0.032)mg/m3、(3.283±1.358)mg/m3和(0.067±0.006)%,商业场所各区域间(卖场区、餐饮区、影院区)PM10污染水平差异无统计学意义(F=1.023,P=0.36),而甲醛、CO和CO2的污染水平比较,差异有统计学意义(F值分别为4.787、323.825和92.375,均P<0.05)。结论商业场所营业期间整体空气质量良好,不同功能区域间空气质量的问题和差异与室内人员活动、通风换气、气流组织及室外大气影响有关。
Objective To continuously monitor the indoor air pollutants in large-scale comprehensive commercial buildings by using automatic indoor air quality monitoring system to understand the status of air quality and to analyze the differences in air quality among different functional areas and to explore the main influencing factors. Methods From December 2012 to February 2013, automatic monitoring equipment was used to continuously monitor the air quality in two large-scale integrated commercial venues, restaurants and cinemas in Beijing. The monitoring time covered the entire business period with the monitoring indicators of PM10 , Formaldehyde, CO and CO2, and the monitoring results are summarized and analyzed. Results A total of 7 monitoring points were set up in commercial establishments and 583 valid data were collected. The levels of PM10, formaldehyde, CO and CO2 in commercial commercial air were (100.7 ± 92.4) μg / m3, (0.07 ± 0.032) mg / m3, (3.283 ± 1.358) mg / m3 and (0.067 ± 0.006) There were no significant differences in the PM10 levels between commercial areas (F / F, Catering Area, Cinema District) (F = 1.023, P = 0.36), while the levels of formaldehyde, CO and CO2 were statistically different F values were 4.787,323.825 and 92.375 respectively, all P <0.05). Conclusion The overall air quality during commercial operation is good. The air quality problems and differences among different functional areas are related to indoor personnel activities, ventilation, air flow organization and outdoor atmosphere.