DOI: 10.1016/j.atmosenv.2017.08.038
Scopus记录号: 2-s2.0-85028501159
论文题名: Uncertainties in monitoring of SVOCs in air caused by within-sampler degradation during active and passive air sampling
作者: Melymuk L ; , Bohlin-Nizzetto P ; , Prokeš R ; , Kukučka P ; , Přibylová P ; , Vojta Š ; , Kohoutek J ; , Lammel G ; , Klánová J
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 167 起始页码: 553
结束页码: 565
语种: 英语
英文关键词: Active air sampling
; Degradation
; Passive air sampling
; Sampling artifacts
; SVOCs
Scopus关键词: Air pollution
; Aromatic hydrocarbons
; Degradation
; Ozone
; Polycyclic aromatic hydrocarbons
; Sampling
; Air sampling
; Ambient air concentration
; Passive air samplings
; Persistent organic pollutants
; Polycyclic aromatic hydrocarbons (PAHS)
; Sampling artifacts
; Semi-volatile organic compounds (SVOCs)
; SVOCs
; Organic pollutants
; organic compound
; ozone
; polychlorinated biphenyl
; polycyclic aromatic hydrocarbon
; semivolatile organic compound
; unclassified drug
; air sampling
; ambient air
; chemical reaction
; concentration (composition)
; degradation
; monitoring
; monitoring system
; PAH
; persistent organic pollutant
; sampler
; sampling bias
; trace gas
; volatile organic compound
; air monitoring
; air sampler
; air sampling
; Article
; degradation
; persistent organic pollutant
; priority journal
; uncertainty
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: Degradation of semivolatile organic compounds (SVOCs) occurs naturally in ambient air due to reactions with reactive trace gases (e.g., ozone, NOx). During air sampling there is also the possibility for degradation of SVOCs within the air sampler, leading to underestimates of ambient air concentrations. We investigated the possibility of this sampling artifact in commonly used active and passive air samplers for seven classes of SVOCs, including persistent organic pollutants (POPs) typically covered by air monitoring programs, as well as SVOCs of emerging concern. Two active air samplers were used, one equipped with an ozone denuder and one without, to compare relative differences in mass of collected compounds. Two sets of passive samplers were also deployed to determine the influence of degradation during longer deployment times in passive sampling. In active air samplers, comparison of the two sampling configurations suggested degradation of particle-bound polycyclic aromatic hydrocarbons (PAHs), with concentrations up to 2× higher in the denuder-equipped sampler, while halogenated POPs did not have clear evidence of degradation. In contrast, more polar, reactive compounds (e.g., organophosphate esters and current use pesticides) had evidence of losses in the sampler with denuder. This may be caused by the denuder itself, suggesting sampling bias for these compounds can be created when typical air sampling apparatuses are adapted to limit degradation. Passive air samplers recorded up to 4× higher concentrations when deployed for shorter consecutive sampling periods, suggesting that within-sampler degradation may also be relevant in passive air monitoring programs. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82423
Appears in Collections: 气候变化事实与影响
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作者单位: Research Centre for Toxic Compounds in the Environment (RECETOX), Masaryk University, Kamenice 753/5, Pavilion A29, Brno, Czech Republic; NILU – Norwegian Institute for Air Research, PO Box 100, Kjeller, Norway; Max Planck Institute for Chemistry, Multiphase Chemistry Department, Hahn-Meitner-Weg 1, Mainz, Germany
Recommended Citation:
Melymuk L,, Bohlin-Nizzetto P,, Prokeš R,et al. Uncertainties in monitoring of SVOCs in air caused by within-sampler degradation during active and passive air sampling[J]. Atmospheric Environment,2017-01-01,167