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Review of polyoxyme...
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Arp, Hans Peter H.
(författare)
Review of polyoxymethylene passive sampling methods for quantifying freely dissolved porewater concentrations of hydrophobic organic contaminants
- Artikel/kapitelEngelska2015
Förlag, utgivningsår, omfång ...
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2015-02-27
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Wiley,2015
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printrdacarrier
Nummerbeteckningar
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LIBRIS-ID:oai:DiVA.org:su-159595
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https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-159595URI
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https://doi.org/10.1002/etc.2864DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:for swepub-publicationtype
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Methods involving polyoxymethylene (POM) as a passive sampler are increasing in popularity to assess contaminant freely dissolved porewater concentrations in soils and sediments. These methods require contaminant-specific POM-water partition coefficients, K-POM. Certain methods for determining K-POM perform reproducibly (within 0.2 log units). However, other methods can give highly varying K-POM values (up to 2 log units), especially for polycyclic aromatic hydrocarbons (PAHs). To account for this variation, the authors tested the influence of key methodological components in K-POM determinations, including POM thickness, extraction procedures, and environmental temperature and salinity, as well as uptake kinetics in mixed and static systems. All inconsistencies in the peer-reviewed literature can be accounted for by the likelihood that thick POM materials (500m or thicker) do not achieve equilibrium (causing negative biases up to 1 log unit), or that certain POM extraction procedures do not ensure quantitative extraction (causing negative biases up to 2 log units). Temperature can also influence K-POM, although all previous literature studies were carried out at room temperature. The present study found that K-POM values at room temperature are independent (within 0.2 log units) of POM manufacture method, of thickness between 17m and 80m, and of salinity between 0% and 10%. Regarding kinetics, monochloro- to hexachloro-polychlorinated biphenyls (PCBs) were within 0.2 log units of equilibrium after 28d in the mixed system, but only dichloro-PCBs achieved near equilibrium after 126d in the static system. Based on these insights, recommended methods and K-POM values to facilitate interlaboratory reproducibility are presented.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Hale, Sarah E.
(författare)
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Elmquist Kruså, Marie
(författare)
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Cornelissen, GerardStockholms universitet,Institutionen för miljövetenskap och analytisk kemi,Norwegian Geotechnical Institute, Norway; Norwegian University of Life Sciences, Norway(Swepub:su)gcorn
(författare)
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Grabanski, Carol B.
(författare)
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Miller, David J.
(författare)
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Hawthorne, Steven B.
(författare)
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Stockholms universitetInstitutionen för miljövetenskap och analytisk kemi
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Environmental Toxicology and Chemistry: Wiley34:4, s. 710-7200730-72681552-8618
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