Investigation of cosolvent application to enhance POPs' mass transfer in partitioning passive sampling in sediment
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F17%3A00095514" target="_blank" >RIV/00216224:14310/17:00095514 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/article/10.1007%2Fs11356-017-0223-8" target="_blank" >https://link.springer.com/article/10.1007%2Fs11356-017-0223-8</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s11356-017-0223-8" target="_blank" >10.1007/s11356-017-0223-8</a>
Alternative languages
Result language
angličtina
Original language name
Investigation of cosolvent application to enhance POPs' mass transfer in partitioning passive sampling in sediment
Original language description
The freely dissolved concentration of persistent organic pollutants (POPs) is one of the most important parameters for risk assessment in aquatic environments, due to its proportionality to the chemical activity. Chemical activity difference represents the driving force for a spontaneous contaminant transport, such as water-aquatic biota or water-sediment. Freely dissolved concentrations in sediment pore water can be estimated from the concentrations in a partition-based passive sampler equilibrated in suspensions of contaminated sediment. Equilibration in the sediment/passive sampler system is slow, since concentrations of most POPs in the water phase, which is the main route for mass transfer, are very low. Adding methanol to sediment in suspension increases the POPs' solubility and, consequently, the permeability in the water phase. The resulting higher aqueous concentrations enhance POPs mass transfer up to three times for investigated POPs (polycyclic aromatic hydrocarbons, polychlorinated biphenyls, organochlorine pesticides) and shorten equilibrium attainment to less than 6 weeks. The addition of methanol to the aqueous phase up to a molar fraction of 0.2 changed the POPs equilibrium distribution ratio between sediment and passive sampler by less than a factor of two. As a result, the pore water concentrations of POPs, calculated from their amounts accumulated in a passive sampler, are affected by methanol addition not more than by the same factor.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10511 - Environmental sciences (social aspects to be 5.7)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Environmental Science and Pollution Research
ISSN
0944-1344
e-ISSN
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Volume of the periodical
24
Issue of the periodical within the volume
35
Country of publishing house
DE - GERMANY
Number of pages
11
Pages from-to
27334-27344
UT code for WoS article
000417545800038
EID of the result in the Scopus database
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