基于大气污染影响的室内臭氧污染特征研究  

Characteristics of Indoor Ozone Pollution Based on the Influence of Air Pollution

作　　者：敬丽君 王军[1] JING Lijun;WANG Jun(College of Architecture and Environment,Sichuan University,Chengdu 610065,China)

机构地区：[1]四川大学建筑与环境学院,四川成都610065

出　　处：《环境科学与技术》2022年第9期106-117,共12页Environmental Science & Technology

基　　金：国家自然科学基金项目(51308361);成都市科技惠民项目(2015-HM01-00548-SF)。

摘　　要：当前臭氧已成为仅次于PM_(2.5)的影响中国空气质量的重要因素,特别是在夏季已经成为影响空气质量的首要污染物。臭氧污染不仅能对人体呼吸道、肺、心血管以及免疫系统造成严重的影响,还能与人体表面皮脂、建材表面、室内化合物反应引发室内空气二次污染。由于现代人平均90%以上的时间在室内活动,室内臭氧污染暴露的危害要远远大于室外臭氧污染暴露,但同时室外臭氧又会对室内臭氧污染产生影响,因此掌握室外大气污染影响下的室内臭氧污染特征是控制室内臭氧污染的重要前提。为此,该文研究了五大气候区共20个典型城市的室内臭氧浓度特点,并进一步基于室外大气污染影响和I/O比预测分析了在开窗时间、换气次数和臭氧沉积速度影响下的室内臭氧污染水平特征。研究结果表明,开窗时间和换气次数与室内臭氧浓度呈正相关,臭氧沉积速度与室内臭氧浓度呈负相关。此外,寒冷地区室内臭氧污染最严重,温和地区室内臭氧污染水平最低。At present,ozone has become an important factor affecting air quality in China second only to PM_(2.5),especially in summer has become the primary pollutant affecting air quality.Ozone pollution can not only cause serious effects on human respiratory tract,lung,cardiovascular and immune system,but also react with human surface sebum,building materials surface and indoor compounds to cause secondary indoor air pollution.Due to an average of more than 90%of the time in the modern indoor human activities,the harm of indoor ozone pollution exposure is far greater than that of outdoor pollution exposure.Meanwhile,outdoor ozone may affect indoor ozone pollution,so to understand the indoor ozone pollution characteristics under the influence of the outdoor air pollution is the important premise to control indoor ozone pollution.In this research,the outdoor ozone concentration characteristics of 20 typical cities in five climate regions were studied,and the indoor ozone pollution characteristics under the influence of window opening time,air change times and ozone deposition rate were further predicted and analyzed based on the impact of outdoor air pollution and I/O ratio.The results show that window opening time and ventilation times are positively correlated with indoor ozone concentration,while ozone deposition rate is negatively correlated with indoor ozone concentration.In addition,indoor ozone pollution is the most serious in cold regions and the lowest in temperate regions.

关 键 词：臭氧浓度 I/O比 开窗时间 换气次数 沉积速度 

分 类 号：X511[环境科学与工程—环境工程] TU834[建筑科学—供热、供燃气、通风及空调工程]