Bioaccumulation of Trace Elements and Health Risk Predictions in Edible Tissues of the Marsh Frog

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Mani M., Altunışık A., Gedik K.

Biological Trace Element Research, pp.1-12, 2022 (Peer-Reviewed Journal)

  • Publication Type: Article / Article
  • Publication Date: 2022
  • Doi Number: 10.1007/s12011-021-03017-1
  • Journal Name: Biological Trace Element Research
  • Journal Indexes: Science Citation Index Expanded, Scopus, Agricultural & Environmental Science Database, Aqualine, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, CAB Abstracts, Chemical Abstracts Core, EMBASE, Food Science & Technology Abstracts, MEDLINE, Pollution Abstracts, Veterinary Science Database
  • Page Numbers: pp.1-12


Certain amphibian species have long served as a valuable protein source for humans, in addition to being good bioindicators

for environmental pollutants. Hence, to investigate the consumption outcomes leading to potential health risks, we determined

the trace element (TE) levels in the hind leg and liver tissues of marsh frogs (Pelophylax ridibundus), one of the delicacies

of several cuisines today. The sediment, water, and frog tissue samples were collected from 15 different locations of NE

Turkey and analyzed to determine the arsenic (As), cadmium (Cd), cobalt (Co), chromium (Cr), copper (Cu), manganese

(Mn), nickel (Ni), lead (Pb), vanadium (V), and zinc (Zn) concentrations. The TE concentrations in the sediment, water,

and individuals were detected to show significant variations among sampling stations (p < 0.05). Yet, Cd and Pb concentrations

of the hind legs cooked and enjoyed in the diets were determined below the European Commission’s permitted levels.

Furthermore, based on the TEs in edible tissues, consumption of the marsh frog did not appear to pose a risk to humans in

terms of provisional tolerable weekly intake (PTWI), target hazard coefficient (THQ), and hazard index (HI).