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Chasing equilibrium passive sampling of hydrophobic organic compounds in water

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F19%3A43915132" target="_blank" >RIV/62156489:43210/19:43915132 - isvavai.cz</a>

  • Alternative codes found

    RIV/00216224:14310/19:00107553

  • Result on the web

    <a href="https://doi.org/10.1016/j.scitotenv.2019.01.242" target="_blank" >https://doi.org/10.1016/j.scitotenv.2019.01.242</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.scitotenv.2019.01.242" target="_blank" >10.1016/j.scitotenv.2019.01.242</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Chasing equilibrium passive sampling of hydrophobic organic compounds in water

  • Original language description

    We investigated a combination of approaches to extend the attainment of partition equilibria between silicone passive samplers (samplers) and surface or treated waste water towards more hydrophobic organic compounds (HOC). The aim was to identify the HOC hydrophobicity range for which silicone sampler equilibration in water is feasible within a reasonable sampler deployment period. Equilibrium partitioning of HOC between sampler and water is desirable for a simpler application as a &quot;chemometer&quot;, aiming to compare chemical activity gradients across environmental media (e.g. water, sediment, biota). The tested approaches included a) long sampler exposure periods and high water flow to maximize mass transfer from water to sampler; b) the use of samplers with reduced sheet thicknesses; and c) pre-equilibration of samplers with local bottom sediment, followed by their exposure in surface water at the same sampling site. These approaches were tested at three sites including a fish pond with a low level of pollution, a river impacted by an urban agglomeration and an effluent of municipal wastewater treatment plant. Tested compounds included polychlorinated biphenyls (PCB), polycyclic aromatic hydrocarbons (PAH), DDT, its metabolites and their isomers, hexachlorobenzene (HCB) and polybrominated diphenyl ethers (PBDE). The study shows that samplers with a surface area of 400-800 cm2 consisting of thin (100-500 μm) silicone sheets exposed at sampling rates of 10-40 L dMINUS SIGN 1 for a time period of up to four months reach partition equilibrium with water for compounds with log Kow LESS-THAN OR EQUAL TO 5.5. Nevertheless, for compounds beyond this limit it is challenging, within a reasonable time period, to reach equilibrium between sampler and water in an open system where water boundary layer resistance controls the mass transfer. For more hydrophobic HOC (log Kow &gt; 6), the kinetic method using performance reference compounds is recommended instead.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10401 - Organic chemistry

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2019

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Science of the Total Environment

  • ISSN

    0048-9697

  • e-ISSN

  • Volume of the periodical

    664

  • Issue of the periodical within the volume

    10 May

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    12

  • Pages from-to

    424-435

  • UT code for WoS article

    000460245600041

  • EID of the result in the Scopus database

    2-s2.0-85061187272