DOI: 10.1016/j.atmosenv.2014.05.064
Scopus记录号: 2-s2.0-84901987665
论文题名: Measurement of nitrogen dioxide diffusive sampling rates for Palmes diffusion tubes using a controlled atmosphere test facility (CATFAC)
作者: Martin N ; A ; , Helmore J ; J ; , White S ; , Barker Snook I ; L ; , Parish A ; , Gates L ; S
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 94 起始页码: 529
结束页码: 537
语种: 英语
英文关键词: Diffusive sampling rates
; Nitrogen dioxide
; Palmes diffusion tubes
; Wind effects
Scopus关键词: Design
; Diffusion
; Nitric oxide
; Test facilities
; Tubes (components)
; Uncertainty analysis
; Wind effects
; Ambient monitoring
; Concentration ranges
; Controlled atmosphere test facilities
; Diffusive sampling
; Measurement uncertainty
; Monitoring stations
; Nitrogen dioxides
; Palmes diffusion
; Nitrogen oxides
; nitric oxide
; nitrogen dioxide
; air sampling
; atmospheric modeling
; diffusion
; filter
; monitoring system
; nitrogen dioxide
; wind velocity
; article
; chemoluminescence
; controlled atmosphere
; controlled atmosphere test facility
; controlled study
; diffusion
; electric resistance
; measurement
; monitoring
; nitrogen dioxide analyzer
; priority journal
; quality control
; sampling
; United Kingdom
; velocity
; water vapor
; England
; London [England]
; United Kingdom
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: We report measurements of the 28 day NO2 diffusive sampling rates for seven designs of Palmes diffusion tubes (PDTs), which were exposed in a controlled atmosphere test facility (CATFAC) containing traceable concentrations of nitrogen dioxide, nitric oxide and water vapour under defined conditions of temperature (20°C) and wind speed. One of the aims of the work was to implement low cost modifications to the conventional open tube PDT design, using either meshes or filters. This would potentially reduce some of the undesirable bias effects due to wind, which may lead to an over estimation of the NO2 concentration. Exposure tests in the CATFAC were carried out over a wide concentration range applicable to ambient monitoring, and also over a range of wind speeds at a constant concentration. For a given PDT design, the measured NO2 diffusive sampling rates were found to be effectively constant over the conditions tested. These rates were then applied to NO2 field measurements carried out at a monitoring station in central London, and three of the modified PDT designs were found to deliver improved repeatability and consequently reduced measurement uncertainty over the conventional open tubes. © 2014. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80799
Appears in Collections: 气候变化事实与影响
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作者单位: National Physical Laboratory (NPL), Analytical Science Division, Environmental Measurements Group, Hampton Road, Teddington, Middlesex TW11 0LW, United Kingdom; Environmental Scientifics Group (ESG), Laboratories and Analytical Services Division, Southmead Industrial Estate, Unit 12, Moorbrook, Didcot, Oxfordshire OX11 7HP, United Kingdom; Gradko Environmental (A Division of Gradko International Ltd), 77 Wales Street, Winchester, Hampshire SO23 0RH, United Kingdom
Recommended Citation:
Martin N,A,, Helmore J,et al. Measurement of nitrogen dioxide diffusive sampling rates for Palmes diffusion tubes using a controlled atmosphere test facility (CATFAC)[J]. Atmospheric Environment,2014-01-01,94