The relationship between the mercury concentration in fish muscles and scales/fins and its significance

0368405 - ÚBO 2012 RIV PL eng J - Journal Article
Červenka, R. - Bednařík, A. - Komárek, J. - Ondračková, Markéta - Jurajda, Pavel - Vítek, T. - Spurný, P.
The relationship between the mercury concentration in fish muscles and scales/fins and its significance.
Central European Journal of Chemistry. Roč. 9, č. 6 (2011), s. 1109-1116. ISSN 1895-1066
R&D Projects: GA MŠMT LC522
Institutional research plan: CEZ:AV0Z60930519
Keywords : Mercury determination * Fish muscle * Scale * Fin
Subject RIV: DN - Health Impact of the Environment Quality
Impact factor: 1.073, year: 2011

For predicting the concentration of mercury in fish muscle, the relationship between total mercury concentrations in fish muscles and in fish scales and fins was studied (atomic absorption spectrometry with thermal decomposition of the sample in a flow of oxygen). A number of scale treatments were applied in order to remove impurities and to enhance the prediction quality. For scale treatment, 40 min of washing with DI water in an ultrasonic bath is recommended. A coefficient of determination r(2)=0.93 for the relationship between Hg concentrations in muscles and scales was achieved for 40 fish among the different fish species tested (bream, perch, roach) from the Hamry Reservoir, Czech Republic. With respect to fin sampling, the coefficient of determination r(2) for these fish was 0.86. The analysis of fish scales and caudal fins is a useful screening tool for assessing the relative mercury contamination of monitored fish.
Permanent Link: http://hdl.handle.net/11104/0202759