DOI: 10.1016/j.atmosenv.2017.12.034
Scopus记录号: 2-s2.0-85039851289
论文题名: Tracer element for indoor PM2.5 in China migrated from outdoor
作者: Ji W ; , Li H ; , Zhao B ; , Deng F
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2018
卷: 176 起始页码: 171
结束页码: 178
语种: 英语
英文关键词: Exposure
; Indoor air quality
; Infiltration
; Tracer element
Scopus关键词: Air quality
; Indoor air pollution
; Infiltration
; Iron
; Sulfur
; Aerodynamic diameters
; Average concentration
; Exposure
; Indoor air quality
; Infiltration factor
; Mass balance model
; Particulate Matter
; Tracer element
; Nickel
; aluminum
; antimony
; arsenic
; barium
; bromine
; cadmium
; calcium
; chlorine
; chromium
; cobalt
; copper
; iron
; lead
; magnesium
; manganese
; nickel
; phosphorus
; potassium
; scandium
; selenium
; silicon
; sodium
; sodium ion
; sulfur
; tin
; titanium
; vanadium
; zinc
; air exposure
; air quality
; chemical element
; concentration (composition)
; experimental study
; feasibility study
; indoor air
; infiltration
; particulate matter
; tracer
; ambient air
; Article
; calculation
; chemical analysis
; China
; comparative study
; concentration process
; controlled study
; correlation analysis
; human
; limit of detection
; mathematical analysis
; particle size
; particulate matter
; priority journal
; China
; Europe
; United States
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: Sulfur and nickel have been widely used as tracers of outdoor PM2.5 (particulate matter with an aerodynamic diameter ≤ 2.5 μm) in the United States and Europe; however, their feasibility as tracers has not been verified yet in China. We aim to verify whether sulfur or nickel could be used as a tracer element and, if not, to identify a suitable tracer element for outdoor PM2.5 in China. We conduct two types of experiments, namely, preliminary and main-study experiments. We analyze 102 pairs of indoor and outdoor PM2.5 samples in Beijing. The correlation between the I/O (indoor/outdoor) ratio of an element and the I/O ratio of total PM2.5 is one of the criteria used to test whether this element can be used as a tracer element. The average concentrations of nickel are found to be below the detection limits in both preliminary and main-study tests. Thus, nickel cannot be used as a tracer element in China. Based on the correlations of elemental I/O ratios and the I/O ratio of total PM2.5 in the preliminary and main-study tests, sulfur also cannot be used as a tracer element; however, it should be feasible to use iron as a tracer element in Beijing according to the test results. The estimated infiltration factor obtained by using iron as tracer is extremely consistent with the calculations based on the mass balance model. In summary, iron is found to be more suitable as a tracer for outdoor PM2.5 in Beijing than sulfur or nickel. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/83028
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Building Science, School of Architecture, Tsinghua University, Beijing, China; Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, China; Beijing Key Laboratory of Indoor Air Quality Evaluation and Control, Tsinghua University, Beijing, China
Recommended Citation:
Ji W,, Li H,, Zhao B,et al. Tracer element for indoor PM2.5 in China migrated from outdoor[J]. Atmospheric Environment,2018-01-01,176