西安工程大学学报2025，Vol.39Issue(3)：28-35,8.DOI:10.13338/j.issn.1674-649x.2025.03.004
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
Measured correlation analysis between the distribution of indoor pollutants in residential buildings in Xi'an and ventilation modes
摘要
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 meas-urements were conducted in 19 residential households in Xi'an across typical seasons over a one-year 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 win-ter.Under natural ventilation for 1 hour,the removal effect is the best,reducing the formaldehyde concentration from 200 μg/m3 to below 80 μg/m3.The volumetric concentration distribution of indoor CO2 is negatively correlated with the variation of outdoor temperature.The optimal strate-gy 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.关键词
居住建筑/在线监测/室内污染物/室内空气质量/通风形式Key words
residential building/online monitoring/indoor pollutants/indoor air quality/ventila-tion modes分类
土木建筑引用本文复制引用
王勇,宁宇轩,翟永超,张雷明,尹海国..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[J].西安工程大学学报,2025,39(3):28-35,8.基金项目
国家重点研发计划项目(2016YFC0700500) （2016YFC0700500）
广东省哲学社会科学规划项目(GD20CYS18) （GD20CYS18）
