| EMELOGU, E. S., P. POLLARD, C. D. ROBINSON, Foppe SMEDES, L. WEBSTER, I .W. OLIVER, C. MCKENZIE, T. B. SEILER, Henner HOLLERT and C. F. MOFFAT. Investigating the significance of dissolved organic contaminants in aquatic environments: Coupling passive sampling with in vitro bioassays. Chemosphere. OXFORD, ENGLAND: PERGAMON-ELSEVIER SCIENCE LTD, 2013, vol. 90, No 2, p. 210-219. ISSN 0045-6535. Available from: https://dx.doi.org/10.1016/j.chemosphere.2012.06.041. |
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@article{1087987,
author = {Emelogu, E. S. and Pollard, P. and Robinson, C. D. and Smedes, Foppe and Webster, L. and Oliver, I .W. and McKenzie, C. and Seiler, T. B. and Hollert, Henner and Moffat, C. F.},
article_location = {OXFORD, ENGLAND},
article_number = {2},
doi = {http://dx.doi.org/10.1016/j.chemosphere.2012.06.041},
keywords = {Passive sampling; Silicone rubber; Hydrophobic organic contaminants; Water; Monitoring; Toxic equivalency (TEQ)},
language = {eng},
issn = {0045-6535},
journal = {Chemosphere},
title = {Investigating the significance of dissolved organic contaminants in aquatic environments: Coupling passive sampling with in vitro bioassays.},
volume = {90},
year = {2013}
}
TY - JOUR
ID - 1087987
AU - Emelogu, E. S. - Pollard, P. - Robinson, C. D. - Smedes, Foppe - Webster, L. - Oliver, I .W. - McKenzie, C. - Seiler, T. B. - Hollert, Henner - Moffat, C. F.
PY - 2013
TI - Investigating the significance of dissolved organic contaminants in aquatic environments: Coupling passive sampling with in vitro bioassays.
JF - Chemosphere
VL - 90
IS - 2
SP - 210-219
EP - 210-219
PB - PERGAMON-ELSEVIER SCIENCE LTD
SN - 00456535
KW - Passive sampling
KW - Silicone rubber
KW - Hydrophobic organic contaminants
KW - Water
KW - Monitoring
KW - Toxic equivalency (TEQ)
N2 - We investigated the feasibility of coupling passive sampling and in vitro bioassay techniques for both chemical and ecotoxicological assessment of complex mixtures of organic contaminants in water. Silicone rubber passive sampling devices (SR-PSDs) were deployed for 8-9 weeks in four streams and an estuary of an agricultural catchment in North East (NE) Scotland. Extracts from the SR-PSDs were analysed for freely dissolved hydrophobic organic contaminants (HOCs) and screened for wide range of pesticides. The total concentrations of dissolved PAHs (Sigma PAH(40), parent and branched) in the water column of the catchment varied from 38 to 69 ng L-1, whilst PCBs (Sigma PCB32) ranged 0.02-0.06 ng L-1. A number and level of pesticides and acid/urea herbicides of varying hydrophobicity (log K(OW)s similar to 2.25 to similar to 5.31) were also detected in the SR extracts, indicating their occurrence in the catchment. The acute toxicity and EROD induction potentials of SR extracts from the study sites were evaluated with rainbow trout liver (Oncorhynchus mykiss; RTL-W1) cell line. Acute cytotoxicity was not observed in cells following 48 h exposure to the SR extracts using neutral red uptake assay as endpoint. But, on a sublethal level, for every site, statistically significant EROD activity was observed to some degree following 72 h exposure to extracts, indicating the presence of compounds with dioxin-like effect that are bioavailable to aquatic organisms in the water bodies of the catchment. Importantly, only a small fraction of the EROD induction could be attributed to the PAHs and PCBs that were determined. This preliminary study demonstrates that the coupling of silicone rubber passive sampling techniques with in vitro bioassays is feasible and offers a cost effective early warning signal on water quality deterioration.
ER -
EMELOGU, E. S., P. POLLARD, C. D. ROBINSON, Foppe SMEDES, L. WEBSTER, I .W. OLIVER, C. MCKENZIE, T. B. SEILER, Henner HOLLERT and C. F. MOFFAT. Investigating the significance of dissolved organic contaminants in aquatic environments: Coupling passive sampling with in vitro bioassays. \textit{Chemosphere}. OXFORD, ENGLAND: PERGAMON-ELSEVIER SCIENCE LTD, 2013, vol.~90, No~2, p.~210-219. ISSN~0045-6535. Available from: https://dx.doi.org/10.1016/j.chemosphere.2012.06.041.
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