DOI: 10.1016/j.atmosenv.2015.03.034
Scopus记录号: 2-s2.0-84925363190
论文题名: Multi-metric measurement of personal exposure to ultrafine particles in selected urban microenvironments
作者: Spinazzè A ; , Cattaneo A ; , Scocca D ; R ; , Bonzini M ; , Cavallo D ; M
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 110 起始页码: 8
结束页码: 17
语种: 英语
英文关键词: Air pollution
; Commuting
; Particle size
; Personal exposure
; Surface area
; Ultrafine particles
Scopus关键词: Exposure controls
; Particle size
; Pollution
; Commuting
; Concentration patterns
; Deposited surface areas
; High efficiency filter
; Particle number concentration
; Personal exposures
; Surface area
; Ultrafine particle
; Air pollution
; atmospheric pollution
; concentration (composition)
; diameter
; environmental monitoring
; measurement method
; particle size
; particulate matter
; pollutant source
; surface area
; traffic emission
; urban pollution
; air sampling
; Article
; autumn
; concentration (parameters)
; dependent variable
; environmental exposure
; environmental monitoring
; environmental temperature
; humidity
; lung deposit
; mass
; microenvironment
; online monitoring
; particle size
; particulate matter
; personal monitoring
; pollutant
; priority journal
; spring
; summer
; surface property
; temporal analysis
; urban area
; winter
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: At the beginning of the study, our hypothesis was that visiting certain microenvironments (MEs) is one of the most important determinants of personal exposure to ultrafine particles (UFP) and that moving between microenvironments significantly differentiates exposure. The overall aim of this study is to perform relevant exposure measurements to extend our knowledge on environmental exposure to UFP in urban environments. The UFP concentrations in different urban MEs were measured by personal monitoring in repeated sampling campaigns along a fixed route. The measurement runs were performed on one-week periods and at different times of day (AM: 08.00-10.30; PM: 16.00-18.30) and repeated in different periods of the year (winter, spring, summer, and autumn) for a total of 56 runs (>110h). Measurements included on-line monitoring of the UFP particle number concentration (PNC), mean diameter (mean-d) and lung-deposited surface-area (LDSA). Additionally, the PNC, particle mass concentration (PMC) profiles for quasi-ultrafine particles (QUFP; PM0.25) were estimated. A significant seasonal difference in the PNC and PMC, mean diameter and surface area was observed as well as between different times of the day and days of the week. In addition, differences in the UFP concentrations were also found in each ME, and there were specific mean-diameter and surface area concentrations. In general, the mean particle diameters showed an inverse relationship with the PNC, while the LDSA had the opposite behaviour. Appreciable differences among all MEs and monitoring periods were observed; the concentration patterns and variations seemed related to the typical sources of urban pollutants (traffic), proximity to sources and time of day. The highest exposures were observed for walking or biking along high-trafficked routes and while using public buses. The UFP exposure levels in modern cars, equipped with high-efficiency filters and in air recirculation mode, were significantly lower. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81761
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: Department of Science and High Technology, University of Insubria, Como, Italy; Epidemiology and Preventive Medicine Research Centre, University of Insubria, Varese, Italy
Recommended Citation:
Spinazzè A,, Cattaneo A,, Scocca D,et al. Multi-metric measurement of personal exposure to ultrafine particles in selected urban microenvironments[J]. Atmospheric Environment,2015-01-01,110