DOI: 10.1016/j.atmosenv.2017.02.013
Scopus记录号: 2-s2.0-85013018771
论文题名: Volatile methyl siloxanes (VMS) concentrations in outdoor air of several Catalan urban areas
作者: Gallego E ; , Perales J ; F ; , Roca F ; J ; , Guardino X ; , Gadea E
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 155 起始页码: 108
结束页码: 118
语种: 英语
英文关键词: Air quality
; Gas chromatography/mass spectrometry
; Thermal desorption
; Volatile methyl siloxanes (VMS)
; Volatile organic compounds (VOC)
Scopus关键词: Air quality
; Cement industry
; Chemical equipment
; Chemical industry
; Chromatography
; Consumer products
; Desorption
; Environmental Protection Agency
; Gas chromatography
; Industrial waste treatment
; Municipal solid waste
; Quality control
; Silicon compounds
; Spectrometry
; Thermal desorption
; Volatile organic compounds
; Waste treatment
; Capillary gas chromatography/mass spectrometry
; European Chemicals Agency
; Gas chromatography/Mass spectrometry
; Petrochemical industry
; Three orders of magnitude
; Toxic substances control acts
; Volatile methyl siloxanes (VMS)
; Volatile organic compound (VOC)
; Urban growth
; siloxane
; sorbent
; toxic substance
; trimethylsilanol
; unclassified drug
; volatile methyl siloxane
; air quality
; air sampling
; assessment method
; atmospheric pollution
; concentration (composition)
; desorption
; gas chromatography
; industrial emission
; mass spectrometry
; pollution monitoring
; toxic substance
; urban area
; volatile organic compound
; act
; air
; air quality
; ambient air
; Article
; capillary gas chromatography
; chemical industry
; desorption
; food industry
; Germany
; health
; human
; Illinois
; industrial area
; mass spectrometry
; methodology
; municipal solid waste
; petrochemical industry
; population density
; priority journal
; Spain
; urban area
; Barcelona [Catalonia]
; Catalonia
; Chicago
; Illinois
; Spain
; Switzerland
; United States
; Zurich [Switzerland]
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: Volatile methyl siloxanes (VMS) were evaluated in ten Catalan urban areas with different industrial impacts, such as petrochemical industry, electrical and mechanical equipment, metallurgical and chemical industries, municipal solid waste treatment plant and cement and food industries, during 2013–2015. 24 h samples were taken with LCMA-UPC pump samplers specially designed in our laboratory, with a flow range of 70 ml min−1. A sorbent-based sampling method, successfully developed to collect a wide-range of VOC, was used. The analysis was performed by automatic thermal desorption coupled with capillary gas chromatography/mass spectrometry detector. The presented methodology allows the evaluation of VMS together with a wide range of other VOC, increasing the number of compounds that can be determined in outdoor air quality assessment of urban areas. This aspect is especially relevant as a restriction of several VMS (D4 and D5) in consumer products has been made by the European Chemicals Agency and US EPA is evaluating to include D4 in the Toxic Substances Control Act, regarding the concern of the possible effects of these compounds in human health and the environment. ΣVMS concentrations (L2-L5, D3-D6 and trimethylsilanol) varied between 0.3 ± 0.2 μg m−3and 18 ± 12 μg m−3, determined in a hotspot area. Observed VMS concentrations were generally of the same order of magnitude than the previously determined in Barcelona, Chicago and Zurich urban areas, but higher than the published from suburban sites and Arctic locations. Cyclic siloxanes concentrations were up to two-three orders of magnitude higher than those of linear siloxanes, accounting for average contributions to the total concentrations of 97 ± 6% for all samples except for the hotspot area, where cyclic VMS accounted for 99.9 ± 0.1%. D5 was the most abundant siloxane in 5 sampling points; however, differing from the generally observed in previous studies, D3 was the most abundant compound in the other 5 sampling points. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82461
Appears in Collections: 气候变化事实与影响
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作者单位: Laboratori del Centre de Medi Ambient, Universitat Politècnica de Catalunya (LCMA-UPC), Avda. Diagonal, 647, Barcelona, Spain; Centro Nacional de Condiciones de Trabajo, INSHT, C/Dulcet, 2-10, Barcelona, Spain
Recommended Citation:
Gallego E,, Perales J,F,et al. Volatile methyl siloxanes (VMS) concentrations in outdoor air of several Catalan urban areas[J]. Atmospheric Environment,2017-01-01,155