globalchange  > 气候变化事实与影响
DOI: 10.1016/j.atmosenv.2014.05.014
Scopus记录号: 2-s2.0-84900831634
论文题名:
Exposure to PM2.5 in modern office buildings through elemental characterization and oxidative potential
作者: Szigeti T; , Kertész Z; , Dunster C; , Kelly F; J; , Záray G; , Mihucz V; G
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 94
起始页码: 44
结束页码: 52
语种: 英语
英文关键词: Indoor air quality ; Occupational health ; Office building ; Oxidative potential ; Particulate matter ; Reactive oxygen species
Scopus关键词: Calcium ; Glass fibers ; Indoor air pollution ; Industrial hygiene ; Oxygen ; Zinc ; Indoor air quality ; Occupational health ; Oxidative potential ; Particulate Matter ; Reactive oxygen species ; Office buildings ; aluminum ; ascorbic acid ; calcium ; chloride ; chromium ; copper ; element ; ferrous ion ; glutathione ; lead ; manganese ; politef ; potassium ; silicon ; silicon dioxide ; strontium ; sulfur ; titanium ; vanadium ; zinc ; air conditioning ; air quality ; building ; chromium ; filter ; heating ; indoor air ; membrane ; occupational exposure ; oxidation ; particulate matter ; silicon ; spectrometry ; ventilation ; zinc ; air conditioning ; air sampling ; ambient air ; article ; building ; concentration (parameters) ; fiber ; filter ; heating ; human ; measurement ; occupational exposure ; oxidation reduction potential ; particulate matter ; priority journal ; quantitative analysis ; thickness ; X ray spectrometry
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: Fifty samples of indoor and outdoor PM2.5 were collected onto quartz fiber and Teflon membrane filters in five office buildings equipped with heating, ventilation and air-conditioning system for 8h daily in order to coincide with the work shift of employees. Samples were analyzed for i) mass concentration; ii) elemental concentration; and iii) oxidative potential (OP) through antioxidant depletion. The PM2.5 mass concentration exceeded the annual mean guideline of 10μgm-3 WHO in 50% of the samples. Indoor and outdoor PM2.5 mass concentrations correlated almost linearly. Proton-induced X-ray emission (PIXE) spectrometry was used for the monitoring of 21 elements. Quantitative determination was achieved in the case of Teflon filters only for Al, Si, S, Cl, K, Ca, Ti, Cr, Mn, Fe and Zn at ngm-3 concentration level. Quartz fiber filters were less adequate for the PIXE measurements due to their greater thickness and filamentary structure. Ca, Cr, Zn and Ti had generally higher concentration (mgg-1) indoors. Indoor/outdoor (I/O) OP values were higher than one in 14% and 57% of the samples in the case of ascorbate and reduced glutathione (GSH), respectively. Spatial and temporal variations of OP were observed across the office buildings. The I/O ratios for OP, Cr and Zn concentrations in the case of GSH were higher for three buildings. Significant relationship was observed between GSH oxidation and Cr and Zn concentrations. Thus, employees were exposed to a higher extent to reactive oxygen species in three buildings. © 2014 Elsevier Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80984
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作者单位: Cooperative Research Centre for Environmental Sciences, Eötvös Loránd University, H-1117 Budapest, Pázmány Péter stny 1/A, Hungary; Hungarian Satellite Trace Elements Institute to UNESCO, Pázmány Péter stny 1/A, H-1117 Budapest, Hungary; Laboratory of Ion Beam Applications, Institute of Nuclear Research of Hungarian Academy of Sciences, Bem tér 18/c, H-4026 Debrecen, Hungary; MRC-PHE Centre for Environment and Health, King's College London, 150 Stamford Street, SE1 9NH London, United Kingdom

Recommended Citation:
Szigeti T,, Kertész Z,, Dunster C,et al. Exposure to PM2.5 in modern office buildings through elemental characterization and oxidative potential[J]. Atmospheric Environment,2014-01-01,94
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