Divinylbenzene samplers as surrogate tool for biological monitoring of (micro)pollutants in the marine environment
Huysman, S.; Vanryckeghem, F.; Smedes, F.; Van Langenhove, H.; Demeestere, F.; Vanhaecke, L. (2018). Divinylbenzene samplers as surrogate tool for biological monitoring of (micro)pollutants in the marine environment, in: 10th International Passive Sampling Workshop and Symposium (IPSW) May 9th-11th, 2018, Ireland: Book of Abstracts.
In: (2018). 10th International Passive Sampling Workshop and Symposium (IPSW) May 9th-11th, 2018, Ireland: Book of Abstracts. DCU: [s.l.]. , meer
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Documenttype: Samenvatting
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| Auteurs | | Top |
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- Van Langenhove, H., meer
- Demeestere, F., meer
- Vanhaecke, L., meer
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| Abstract |
The extensive use of organic chemicals for different applications (industry, agriculture, pharmaceutical usage, etc.) leads to low-concentration but long-term exposure of the aquatic environment to their residues. The protection of our coasts and marine waters is a long-standing part of the European Community environmental policy, which is also broader internationally regulated. Various organizations involved (a.o. OSPAR, USEPA, etc.) stress the need for a more integrated, consistent and economically favourable strategy to meet legislative and international obligations. In the context, this study presents a relatively new approach using the divinylbenzene (DVB) sorbent as passive sampler. Static exposure designs were used for investigating the kinetic parameters of 186 emerging contaminants (i.e. 28 pesticides, 7 personal care products, 52 pharmaceuticals, 70 hormones and 27 plasticizers). The latter were successfully calculated and validated by a model that was used for evaluating the bioaccumulation of the sorbent (Greenwood et al, 2007). During the validation, the models displayed significant (p<0.05) non-linear correlations, which resulted in the determination of kinetic and equilibrium parameters. The uptake rates and partition water coefficients ranged respectively between 5 to 40 L.d-1 and 5 to 10. Additionally, the DVB was extensively calibrated for using this novel technique as a quantitative surrogate of aquatic organisms. Finally as a proof of principle, DVB samplers were directly applied in marine waters and accumulated a broad polarity range of compounds (Log P from 2 to 10). Moreover, the uptake rates obtained by the laboratory pseudo-static exposure design were 100-fold lower than the field due to the enclosing glass fiber of the DVB. In conclusion, this unique technique lead to quantify the risk of emerging contaminants that can be accumulated by aquatic organisms. |
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