The prediction of mercury bioavailability for common carp (Cyprinus carpio L.) using the DGT technique in the presence of chloride ions and humic acid. (November 2018)

• Record Type: Journal Article
• Authors: Pelcová, Pavlína; Vičarová, Petra; Dočekalová, Hana; Poštulková, Eva; Kopp, Radovan; Mareš, Jan; Smolíková, Vendula
• Is Part Of: Chemosphere. Volume 211(2018)
• Page Start: 1109
• Page End: 1112
• Publication Date: 2018-11
• Subjects: Diffusive gradient in thin film technique -- Fish tissues -- Ligand -- Water ecosystem; AMA 254 Advanced Mercury Analyser -- DGT diffusive gradient in thin film -- HA humic acid; Pollution -- Periodicals; Pollution -- Physiological effect -- Periodicals; Environmental sciences -- Periodicals; Atmospheric chemistry -- Periodicals; 551.511
• DOI: 10.1016/j.chemosphere.2018.07.202
• Languages: English
• ISSNs: 0045-6535

Abstract

Abstract: The ability of the DGT technique to predict Hg 2+ bioavailability for input tissues (skin, gills, and scales) of common carp in the presence of chloride ions and humic acid (HA) was evaluated. The mercury accumulation by the DGT units and input tissues of carp decreased with an increasing concentration of chloride ions (29–180 mg L −1 ) and HA (0–5 mg L −1 ). In the presence of chloride ions and HA, statistically significant correlations (Pearson's correlation coefficients 0.731–0.954) were determined between the rate of mercury accumulation by input tissues of carp and the rate of mercury accumulation by the DGT units. The laboratory experiments suggest the possibility of using the DGT technique for predicting the mercury bioaccumulation in natural aquatic ecosystems instead of commonly used input tissues of fish. Graphical abstract: Image Highlights: The Hg 2+ bioavailability was observed in the presence of humic acid and chlorides. Chlorides and humic acids play an important role in the bioavailability of mercury. The DGT technique was tested for predicting mercury bioaccumulation. A correlation between DGT and mercury in input tissues of common carp was observed. The DGT can be used for the assessment of mercury bioavailability in natural water.