Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.4209/aaqr.2015.01.0039 |
Characterization, Fate, and Re-Suspension of Aerosol Particles (0.3-10 mu m): The Effects of Occupancy and Carpet Use | |
Hussein, Tareq1,2; Dada, Lubna2; Juwhari, Hassan1; Faouri, Dina1 | |
通讯作者 | Hussein, Tareq |
来源期刊 | AEROSOL AND AIR QUALITY RESEARCH
![]() |
ISSN | 1680-8584 |
EISSN | 2071-1409 |
出版年 | 2015 |
卷号 | 15期号:6页码:2367-2377 |
英文摘要 | In this study we present the particle number size distribution (diameter 0.3-10 mu m with 1-minute time resolution) inside four offices (naturally ventilated) inside two university buildings. Each office had a typical environment in terms of occupancy and furniture. We focused on the differences between workdays and weekends in terms of particle number (PN) and particle mass (PM, assuming spherical particles with unit density) concentrations. Moreover, we illustrated the effect of workers’ activity (occupancy, smoking, etc.). We also applied a simple indoor aerosol model to estimate the fate (gravitational settling and exfiltration) and source strength of aerosol particles within the measured particle size range. During workdays, the highest measured 24-hour average PM10-1 in the occupied office was 41.5 mu g m(-3) (PN10-1 = 2.2 cm(-3)) compared to 9.0 mu g m(-3) (PN10-1 = 1.2 cm(-3)) in the unoccupied offices. The ventilation rate of the offices that were opposite to each other was about 0.15 h(-1) whereas it was 0.28-0.38 h(-1) for the other offices, which were a bit distant from each other. The gravitational settling analysis suggested that a suitable particle density (rho(p)) could be similar to 1.7 g cm(-3) with a shape factor chi similar to 1.57, which is similar to mineral dust particles. The gravitational settling rate of particles around 2 mu m in diameter was about 0.3 h(-1). The source strength of indoor dust particles was higher in the occupied and carpeted offices (re-suspension emission rate as high as 235 mu g m(-3) h(-1)) in comparison to unoccupied and uncarpeted offices (75 mu g m(-3) h(-1)). This study provided us with an insight about the effect of occupancy and carpet use on the dynamic behavior (fate and resuspension) of dust particles inside university office buildings located in semi-arid regions. |
英文关键词 | Indoor air quality Particle number size distribution Particulate matter Aerodynamic diameter Gravitational settling |
类型 | Article |
语种 | 英语 |
国家 | Jordan ; Finland |
收录类别 | SCI-E |
WOS记录号 | WOS:000363396200018 |
WOS关键词 | INDOOR AIR-QUALITY ; MASS CONCENTRATIONS ; ELEMENTAL COMPOSITION ; SIZE CHARACTERIZATION ; NUMBER CONCENTRATIONS ; PARTICULATE MATTER ; DEPOSITION RATES ; ACTIVITY PATTERN ; EXCHANGE-RATES ; VENTILATION |
WOS类目 | Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/185524 |
作者单位 | 1.Univ Jordan, Dept Phys, Amman 11942, Jordan; 2.Univ Helsinki, Dept Phys, UHEL, FI-00014 Helsinki, Finland |
推荐引用方式 GB/T 7714 | Hussein, Tareq,Dada, Lubna,Juwhari, Hassan,et al. Characterization, Fate, and Re-Suspension of Aerosol Particles (0.3-10 mu m): The Effects of Occupancy and Carpet Use[J],2015,15(6):2367-2377. |
APA | Hussein, Tareq,Dada, Lubna,Juwhari, Hassan,&Faouri, Dina.(2015).Characterization, Fate, and Re-Suspension of Aerosol Particles (0.3-10 mu m): The Effects of Occupancy and Carpet Use.AEROSOL AND AIR QUALITY RESEARCH,15(6),2367-2377. |
MLA | Hussein, Tareq,et al."Characterization, Fate, and Re-Suspension of Aerosol Particles (0.3-10 mu m): The Effects of Occupancy and Carpet Use".AEROSOL AND AIR QUALITY RESEARCH 15.6(2015):2367-2377. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。