西安居住建筑室内污染物分布与通风形式的实测关联分析

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中图分类号：TU83 文献标志码：ADOI：10.13338/j. issn. 1674-649x.2025.03.004

Measured correlation analysis between the distribution of indoor pollutants in residential buildings in Xi'an and ventilation modes

WANG Yong1 ，NING Yuxuan 2，3 ，ZHAI Yongchao³，ZHANG Leiming4 ，YIN Haiguo²

1. Sino-German Ecopark，Department of Ecological Planning and Construction，Qingdao 266427，Shandong，China; 2.School of Building Services Science and Engineering，Xi'an University of Architecture and Technology，Xi'an 710055，China; 3. School of Architecture，Xi'an University of Architecture and Technology，Xi'an 710o55，China;

Abstract To investigate the control effectiveness of different ventilation modes on major indoor pollutants，focuse on formaldehyde， CO2 ，and indoor/outdoor PM2.5 concentrations. Field measurements were conducted in 19 residential households in Xi'an across typical seasons over a oneyear period，while 31 households were continuously monitored online for two and a half years. The study further identifies the optimal ventilation modes for different pollutants.The results show that the mass concentration of indoor formaldehyde is highest in summer and lowest in winter. Under natural ventilation for1 hour，the removal effect is the best，reducing the formaldehyde concentration from 200μg/m3 to below 80μg/m3 . The volumetric concentration distribution of indoor CO2 is negatively correlated with the variation of outdoor temperature. The optimal strategy is to primarily use natural ventilation，supplemented by air purifiers. The mass concentration range of indoor and outdoor PM2.5 is strongly correlated with outdoor temperature. The optimal mode is to close windows and operate a fresh air unit，which can effectively reduce the indoor PM2.5 mass concentration.

Keywordsresidential building;online monitoring; indoor pollutants;indoor air quality； ventilation modes

0引言

世界卫生组织在报告中提出，当今社会中人类80% 的疾病与空气质量存在显著关系。（剩余11250字）