Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Ecotoxicological testing of sediments and dredged material: an overlooked opportunity? |
| Abstract | Purpose Basing decisions for the management of contaminated sediments on ecotoxicological data is still often met with skepticism by European stakeholders. These concerns are discussed as they pertain to bioassays to show how ecotoxicological data may provide added value for the sustainable management of sediment in aquatic systems. Materials and methods Five "concerns" are selected that are often raised by stakeholders. The ecotoxicological practice is discussed in light of the knowledge gained in recent decades and compared with chemical sediment analysis and chemical data. Results and discussion Common assumptions such as a higher uncertainty of biotest results for sediments compared to chemical analyses are not supported by interlaboratory comparisons. Some confusion also arises, because the meaning of biotest data is often misunderstood, questioning their significance in light of a limited number of organisms and altered test conditions in the lab. Because biotest results describe a sediment property, they should not be directly equated with an impact upon the biological community. To identify a hazard, however, the possibility of false-negative results due to the presence of contaminants that are not analyzed but are toxic is lower. Conclusions The cost of increased investment in ecotoxicological tests is, in our view, small compared with that of making false-negative assessments of sediment/dredged material that can ultimately have long-term environmental costs. As such, we conclude that ecotoxicological testing is an opportunity for sediment management decision-making that warrants more attention and confidence in Europe. |
| Source | Journal of soils and sediments (Print) |
| Keywords | SedimentEcotoxicological testingBioassaysStakeholders |
| Journal | Journal of soils and sediments (Print) |
| Editor | Springer, Heidelberg ;, Germania |
| Year | 2020 |
| Type | Articolo in rivista |
| DOI | 10.1007/s11368-020-02798-7 |
| Authors | Heise, Susanne; Babut, Marc; Casado, Carmen; Feiler, Ute; Ferrari, Benoit J. D.; Marziali, Laura |
| Text | 435245 2020 10.1007/s11368 020 02798 7 ISI Web of Science WOS 000577250800002 Sediment Ecotoxicological testing Bioassays Stakeholders Ecotoxicological testing of sediments and dredged material an overlooked opportunity Heise, Susanne; Babut, Marc; Casado, Carmen; Feiler, Ute; Ferrari, Benoit J. D.; Marziali, Laura Hamburg Univ Appl Sci; INRAE; Swiss Ctr Appl Ecotoxicol Ecotox Ctr; Fed Inst Hydrol; Italian Natl Res Council Purpose Basing decisions for the management of contaminated sediments on ecotoxicological data is still often met with skepticism by European stakeholders. These concerns are discussed as they pertain to bioassays to show how ecotoxicological data may provide added value for the sustainable management of sediment in aquatic systems. Materials and methods Five concerns are selected that are often raised by stakeholders. The ecotoxicological practice is discussed in light of the knowledge gained in recent decades and compared with chemical sediment analysis and chemical data. Results and discussion Common assumptions such as a higher uncertainty of biotest results for sediments compared to chemical analyses are not supported by interlaboratory comparisons. Some confusion also arises, because the meaning of biotest data is often misunderstood, questioning their significance in light of a limited number of organisms and altered test conditions in the lab. Because biotest results describe a sediment property, they should not be directly equated with an impact upon the biological community. To identify a hazard, however, the possibility of false negative results due to the presence of contaminants that are not analyzed but are toxic is lower. Conclusions The cost of increased investment in ecotoxicological tests is, in our view, small compared with that of making false negative assessments of sediment/dredged material that can ultimately have long term environmental costs. As such, we conclude that ecotoxicological testing is an opportunity for sediment management decision making that warrants more attention and confidence in Europe. Published version Articolo in rivista Springer 1439 0108 Journal of soils and sediments Print Journal of soils and sediments Print J. soils sediments Print Journal of soils and sediments. Print JSS Landsberg. Print Print J soils sediments Print Print Journal of soils sediments Print JSS Berlin. Print Print JSSS Print Print Journal of soil and sediments Print laura.marziali MARZIALI LAURA DTA.AD002.552.001 Invasi Regione Lombardia |