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This research aims to evaluate the ecological and toxicological status of bottom sediments in the Gorki Reservoir.

January 1, 2025Биология внутренних вод / Inland Water Biology

Ecological and Toxicological State of Bottom Sediments of the Gorki Reservoir (According to Biotesting and Chemical Analysis Data)

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Biotesting revealed heavy metals toxicity affecting chironomid larvae in the Gorki Reservoir, suggesting environmental concerns.

This research aims to evaluate the ecological and toxicological status of bottom sediments in the Gorki Reservoir.
Long-term analysis from 2010 to 2023
Biotesting using Chironomus riparius larvae to assess toxicity
Chemical analysis of sediment samples for heavy metals
Correlation analysis to identify relationships between variables
Significantly lower linear sizes of chironomid larvae than control values
Higher mortality rates of chironomid larvae noted in 2016 and 2017
Toxicity index values consistently lower than control values, indicating pollution
Heavy metals (Cr, Mn, Zn, As, Cd, Pb) concentrations exceeded Earth's crust clarks
Moderate contamination of sediment in specific reservoir sections indicated by pollution coefficients

R. A. Lozhkina (2025) studied this question.

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