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Publikationstyp
Wissenschaftlicher Artikel
Erscheinungsjahr
2016
Biota monitoring and the Water Framework Directive-can normalization overcome shortcomings in sampling strategies?
Biota monitoring and the Water Framework Directive-can normalization overcome shortcomings in sampling strategies?
Autor:innen
Fliedner, Anette
Rüdel, Heinz
Teubner, Diana
Buchmeier, Geogia
Lowis, Jaqueline
Heiss, Christiane
Herausgeber
Quelle
Environmental science and pollution research
23 (2016), Heft 21
23 (2016), Heft 21
Schlagwörter
EG-Wasserrahmenrichtlinie, Hexachlorbenzol, Perfluoroctansulfonsäure, Umweltprobenbank
Zitation
FLIEDNER, Anette, Heinz RÜDEL, Diana TEUBNER, Geogia BUCHMEIER, Jan KOSCHORRECK, Jaqueline LOWIS, Christiane HEISS und Jörg WELLMITZ, 2016. Biota monitoring and the Water Framework Directive-can normalization overcome shortcomings in sampling strategies? Environmental science and pollution research [online]. 2016. Bd. 23 (2016), Heft 21. DOI 10.60810/openumwelt-1259. Verfügbar unter: https://openumwelt.de/handle/123456789/7217
Zusammenfassung englisch
We compare the results of different monitoring programs regarding spatial and temporal trends of priority hazardous substances of the European Water Framework Directive (WFD). Fish monitoring data for hexachlorobenzene (HCB), mercury (Hg), and perfluorooctane sulfonic acid (PFOS) sampled in German freshwaters between the mid-1990s and 2014 were evaluated according to the recommendations of the 2014 adopted WFD guidance document on biota monitoring, i.e., normalization to 5 % lipid content (HCB) or 26 % dry mass (Hg, PFOS) and adjustment to trophic level (TL) 4. Data of the German Environmental Specimen Bank (ESB) (annual pooled samples of bream) were compared to monitoring data of the German federal states (FS), which refer to individual fish of different species. Significant decreasing trends (p < 0.01) were detected for Hg in bream (Abramis brama) sampled by both, the ESB and the FS between 1993 and 2013 but not for FS samples comprising different fish species. Data for HCB and PFOS were more heterogeneous due to a smaller database and gave no consistent results. Obviously, normalization could not compensate differences in sampling strategies. The results suggest that the data treatment procedure proposed in the guidance document has shortcomings and emphasize the importance of highly standardized sampling programs in trend monitoring or whenever results between sites have to be compared. Quelle: www.springer.com