Prediction of mercury bioavailability to common carp (Cyprinus carpio L.) using the diffusive gradient in thin film technique. (November 2017)

• Record Type: Journal Article
• Authors: Pelcová, Pavlína; Vičarová, Petra; Ridošková, Andrea; Dočekalová, Hana; Kopp, Radovan; Mareš, Jan; Poštulková, Eva
• Is Part Of: Chemosphere. Volume 187(2017)
• Page Start: 181
• Page End: 187
• Publication Date: 2017-11
• Subjects: DGT -- Bioaccumulation -- Fish tissues -- Mercury exposure -- Correlation -- Water; A Surface area of the diffusive gel layer -- AMA254 Advanced Mercury Analyser -- ANC4.5 Acid neutralisation capacity -- CODCr Chemical oxygen demand -- D Diffusion coefficient -- DGT Diffusive gradients in thin film -- Δg Thickness of the diffusive gel layer -- (N-NH4 + NH3) Ammonium nitrogen -- (N-NO3) Nitrate nitrogen -- (N-NO2) Nitrite nitrogen -- (P-PO4) Orthophosphate -- NT Total nitrogen -- PT Total phosphorus; Pollution -- Periodicals; Pollution -- Physiological effect -- Periodicals; Environmental sciences -- Periodicals; Atmospheric chemistry -- Periodicals; 551.511
• DOI: 10.1016/j.chemosphere.2017.08.097
• Languages: English
• ISSNs: 0045-6535

Abstract

Abstract: The mercury bioaccumulation by common carp ( Cyprinus carpio L.) tissues (gills, skin, eyes, scales, muscle, brain, kidneys, liver, and spleen) and the capability of the diffusive gradient in thin film (DGT) technique to predict bioavailability of mercury for individual carp's tissues were evaluated. Carp and DGT units were exposed to increasing concentrations of mercury (Hg 2+ : 0 μg L −1, 0.5 μg L −1, 1.5 μg L −1 and 3.0 μg L −1 ) in fish tanks for 14 days. In the uncontaminated fish group, the highest mercury concentration was determined in the muscle tissues and, in fish groups exposed to mercury, the highest mercury concentration was determined in the detoxification (kidneys) and input (gills) organs. A strong and positive correlation between the rate of mercury uptake by the DGT technique and the rate of mercury accumulation by fish tissues (gills, skin, scales, and eyes) was observed. Graphical abstract: Highlights: The mercury bioavailability to common carp was observed. The diffusive gradient in thin film (DGT) technique was used. Correlations between DGT and mercury input in fish tissues were observed. The DGT can be used for the assessment of mercury bioavailability in water.