Chromium bioavailability in aquatic systems impacted by tannery wastewaters. Part 1: Understanding chromium accumulation by indigenous chironomids.
- Vignati DAL Department F.-A. Forel for Environmental and Aquatic Sciences, University of Geneva, Uni Carl Vogt, 66 boulevard Carl-Vogt, CH-1211 Geneva, Switzerland; Université de Lorraine, CNRS, LIEC, F-57000 Metz, France. Electronic address: david-anselmo.vignati@univ-lorraine.fr.
- Ferrari BJD Department F.-A. Forel for Environmental and Aquatic Sciences, University of Geneva, Uni Carl Vogt, 66 boulevard Carl-Vogt, CH-1211 Geneva, Switzerland; Swiss Centre for Applied Ecotoxicology Eawag-EPFL (Centre Ecotox), EPFL-ENAC-IIE-GE, Station 2, 1015 Lausanne, Switzerland.
- Roulier JL Irstea, UR RiverLy, centre de Lyon-Villeurbanne, F-69625 Villeurbanne, France.
- Coquery M Irstea, UR RiverLy, centre de Lyon-Villeurbanne, F-69625 Villeurbanne, France.
- Szalinska E Department of Environment Protection, Faculty of Geology, Geophysics and Environmental Protection, AGH University of Science and Technology, 30 A. Mickiewicza Av., 30-059 Krakow, Poland.
- Bobrowski A Department of Building Materials Technology, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 A. Mickiewicza Av., 30-059 Krakow, Poland.
- Czaplicka A Department of Water Supply, Sewerage and Environmental Monitoring, Cracow University of Technology, 24 Warszawska ul., 31-155 Krakow, Poland.
- Kownacki A Karol Starmach Department of Freshwater Biology, Institute of Nature Conservation, Polish Academy of Sciences, 33 A. Mickiewicza Av., 31-120 Krakow, Poland.
- Dominik J Department F.-A. Forel for Environmental and Aquatic Sciences, University of Geneva, Uni Carl Vogt, 66 boulevard Carl-Vogt, CH-1211 Geneva, Switzerland; Institute of Marine Science - National Research Council (ISMAR-CNR) Arsenale - Tesa 104, Castello 2737/F, 30122 Venice, Italy.
- 2018-11-10
Published in:
- The Science of the total environment. - 2019
Bioaccumulation
Chromium speciation
DET
DGT
Sediment cores
Voltammery
Animals
Biological Availability
Chironomidae
Chromium
Industrial Waste
Lakes
Larva
Poland
Rivers
Tanning
Waste Water
Water Pollutants, Chemical
English
The tanning industry uses large quantities of Cr whose contribution to the contaminant burden of aquatic organisms is not yet fully understood. The present study investigated Cr bioaccumulation by indigenous chironomids in a freshwater ecosystem impacted by tannery effluents. Total Cr content in sediments and in chironomids was determined on several occasions. Chromium distribution among sediments and pore waters, and Cr speciation in overlying and pore waters were studied in detail to understand possible factors controlling Cr bioavailability to chironomids. Total chromium concentration ranged from 69 to over 3000 μg g-1 dry weight in sediments and from negligible to over 300 μg g-1 dry weight in chironomids (values corrected for sediment gut content). Filterable (<0.45 μm) Cr concentration in overlying waters and pore waters from the surface sediment layers (upper 2 cm) ranged from 3 to 120 μg L-1, with Cr(VI) representing 0.5-28% of the total filterable Cr. Chromium profiles in pore waters as determined by diffusive equilibration in thin films (DET) and diffusive gradient in thin films (DGT) were comparable. DGT-labile Cr accounted for <2% of the total Cr measured by DET. Although Cr concentrations in sedimentary and aqueous matrices were not directly proportional to Cr levels measured in chironomids, the available findings suggested that Cr inputs from tanneries were bioavailable to resident chironomids. These observations are of particular importance considering that Cr(III), putatively of limited bioavailability and ecotoxicological concern, is the predominant redox form of Cr in bed sediments impacted by tannery discharges. The companion paper provides further insight into Cr bioavailability and effects in tannery impacted ecosystems using a combination of in situ and laboratory approaches.
- Language
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- English
- Open access status
- green
- Identifiers
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- DOI 10.1016/j.scitotenv.2018.10.259
- PMID 30412885
- Persistent URL
- https://sonar.ch/global/documents/29311
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