Toxicity of Bottom Sediments of the Rybinsk Reservoir According to Long-term Biotesting Data: Report 1. Toxicological Studies

Томилина, И. И.; Ложкина, Р. А.; Gapeeva, M. V.

doi:10.1134/s1995082921060134

Cited by 5 publications

(2 citation statements)

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“…This study has revealed a tendency for more intensive accumulation of heavy metals (Cd, Pb, Zn, Cu, Mn, and Fe) in sabrefish from an area with a high anthropogenic load. A number of studies have also shown that stations located near the industrial complex (Stations 3 and 4) are considered the most unfavorable for aquatic organisms, in terms of heavy metal concentrations in both the water and bottom sediments and according to the results of biotesting in different areas of the reservoir [ 66 , 77 , 87 , 88 ].…”

Section: Discussionmentioning

confidence: 99%

“…This area has been subjected to long-term pollution by industrial wastewater, characterized by high concentrations of persistent organic pollutants and heavy metals [ 64 , 65 ]. Scientists have recorded a significant content of heavy metals in the water and bottom sediments [ 64 , 66 ]. In addition, the area is exposed to household wastewater, as well as diffuse runoff from agricultural land and highways [ 67 ].…”

Section: Methodsmentioning

confidence: 99%

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Distribution of Essential and Toxic Elements in Pelecus cultratus Tissues and Risk Assessment for Consumer Health

Payuta,

Flerova,

Zaitseva

2023

Toxics

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Nowadays, the problem of inland water pollution is acute. It is caused by vast industrial growth and agricultural intensification. Concentrations of Cd, Pb, Zn, Cu, Mn, Fe, Mg, and Kwere determined in the muscles, liver, and gonads sabrefish from Rybinsk Reservoir areas with different anthropogenic loads. The tissue samples were analyzed by atomic absorption spectrometry. Heavy metals accumulated more intensively in the body of fish from more polluted areas of the reservoir. Among the analyzed elements, the maximum accumulation levels were found for K, Zn, and Fe and the minimum levels were observed for Cd and Pb. The gonads contained the largest concentration of Cd and Mn, the muscles contained the highest concentrations of Mg, and the other elements mainly accumulated in the liver of sabrefish. The THQ and HI values for all elements did not exceed 1, which suggests that there is no potential non-carcinogenic risk to human health. The target values of carcinogenic risk (TR) for cadmium ranged from 8.32 × 10−6 to 1.22 × 10−4 in the muscles. The increased content of cadmium in the gonads of sabrefish not only poses a risk to human health, but also to the reproduction of this species in the Rybinsk Reservoir.

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