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Indoor/outdoor relationship of PM2.5 concentration in typical buildings with and without air cleaning in Beijing
Deng, Gaofeng1,2; Li, Zenghe1; Wang, Zhichao2; Gao, Jubao3; Xu, Zhaowei2; Li, Jiandong2; Wang, Zhiyong2
2017
Source PublicationINDOOR AND BUILT ENVIRONMENT
ISSN1420-326X
Volume26Issue:1Pages:60-68
Abstract

Indoor and outdoor particulate matter 2.5 (PM2.5) concentrations were monitored in seven sampling sites: basketball stadium, hotel, shopping centre, research centre, commercial office, apartment building and villa, to determine the indoor and outdoor relationship of PM2.5 mass concentration in the central area of Beijing from February 2014 to March 2014. The influence of four types of ventilation systems on indoor to outdoor (I/O) ratio of PM2.5 concentration was evaluated. The measured results show that the mean I/O ratio of the seven locations was 0.36 when the outdoor PM2.5 concentration was more than 150 mu g/m(3), and 1.1 when the outdoor PM2.5 concentration was less than 100 mu g/m(3), which implies that people's activities could be the most likely factor rather than outdoor sources for elevated indoor PM2.5 levels. The average I/O ratio was 0.69 for public buildings and 0.94 for residential homes, which illustrates that indoor PM2.5 concentrations could be dominated by outdoor sources for residential homes. Approximately 90% of the outdoor particles were removed in public buildings equipped with fan-coil unit with air cleaning plus fresh air system. The results demonstrate the need to improve indoor air quality by using a proper ventilation system with air cleaning.

KeywordIndoor Air Quality Particulate Matter 2.5 Public Building Residential Home Ventilation Systems Air Cleaning Unit Indoor To Outdoor Ratio
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Life Sciences & Biomedicine
DOI10.1177/1420326X15604349
Indexed BySCI
Language英语
WOS KeywordParticulate Matter ; Outdoor Air ; Indoor Air ; Particle Number ; Hong-kong ; Quality ; China ; Pollution ; Homes ; Exposure
WOS Research AreaConstruction & Building Technology ; Engineering ; Public, Environmental & Occupational Health
WOS SubjectConstruction & Building Technology ; Engineering, Environmental ; Public, Environmental & Occupational Health
Funding OrganizationNational Key Technology R&D Program in the 12th Five year Plan of China(2013BAK12B03)
WOS IDWOS:000394085700006
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/21961
Collection多相复杂系统国家重点实验室
Affiliation1.Beijing Univ Chem Technol, Sch Sci, Beijing, Peoples R China
2.China Acad Bldg Res, State Key Lab Bldg Safety & Environm, Beijing, Peoples R China
3.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Deng, Gaofeng,Li, Zenghe,Wang, Zhichao,et al. Indoor/outdoor relationship of PM2.5 concentration in typical buildings with and without air cleaning in Beijing[J]. INDOOR AND BUILT ENVIRONMENT,2017,26(1):60-68.
APA Deng, Gaofeng.,Li, Zenghe.,Wang, Zhichao.,Gao, Jubao.,Xu, Zhaowei.,...&Wang, Zhiyong.(2017).Indoor/outdoor relationship of PM2.5 concentration in typical buildings with and without air cleaning in Beijing.INDOOR AND BUILT ENVIRONMENT,26(1),60-68.
MLA Deng, Gaofeng,et al."Indoor/outdoor relationship of PM2.5 concentration in typical buildings with and without air cleaning in Beijing".INDOOR AND BUILT ENVIRONMENT 26.1(2017):60-68.
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