Chemistry and Toxicity of Bottom Sediments in Small Watercourses of St. Petersburg

Opekunov, A. Yu.; Mitrofanova, Ekaterina; Spasskii, V. V.; Opekunova, M. G.; Sheinerman, N. A.; Chernyshova, A. V.

doi:10.1134/s0097807820020116

Cited by 10 publications

(4 citation statements)

References 23 publications

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“…Currently, the most common method for such assessment is the use of Daphnia magna Straus, 1820 and the green protococcal algae Scenedesmus quadricauda (Turp.) Breb, which has been confirmed by a number of studies aimed at determining potential toxicity of bottom sediments and bioavailability of trace elements and rare earth elements [Lee et al, 2015;Gorgulenko and Yanygina, 2014;Terra et al, 2010;Opekunov et al, 2020]. Various integral methods are also used to summarize the contamination of bottom sediments: geoaccumulation index (Igeo), sediment enrichment factor (SEF), potential ecological risk index (RI), sediment quality guidelines (SQGs), pollution load index (PLI), sediment pollution index (SPI), etc.…”

Section: Introductionmentioning

confidence: 98%

Distribution of Trace Elements, Rare Earth Elements and Ecotoxicity in Sediments of the Kosva Bay, Perm Region (Russia)

Ushakova¹,

Menshikova²,

Блинов³

et al. 2022

J. Ecol. Eng.

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Over a long period of time, a huge amount of technogenic bottom sediments has been accumulating in the Kosva Bay with significant concentrations of amorphous iron and aluminium hydroxides, which, in turn, are active sorbents of pollutants. This study examines the distribution of trace elements and rare earth elements and their toxicity in the Kosva Bay of the Kama Reservoir (Perm Region, Russia). In the middle reach, the Kosva River crosses the Kizel coal basin, where acid mine water is discharged from closed mines. The average content of trace elements in the samples of bottom sediments of the bay varies from 0.10 mg/kg (Se) to 176.36 mg/kg (Ba). The amount of rare earth elements varies from 66.8 to 83.6 mg/kg. The ecological significance of trace elements and rare earth elements was studied using an element-by-element assessment (EF and Igeo), Potential Ecological Risk Index (RI), Mean Probable Effect Concentration Quotient (PECQ), and two bioassays (Daphnia magna Straus and Scenedesmus quadricauda (Turp.) Breb. The highest Hg enrichment was found at two sampling points. Taking into account the average value of Igeo, the pollution by Co, V, Nb, Hg, Sn, Zn, Sm, Ni, Cr, and Gd is the highest and corresponds to extremely contaminated category. The RI values indicate that pollution categories vary from moderate risk to considerable risk. According to mean PECQ values, bottom sediments of the bay have moderate potential toxicity towards biological communities. Results of chronic and acute toxicity on test objects D. magna and Scenedesmus quadricauda Breb show the water extract from bottom sediments having no effects on the test objects. The results of the study show that in order to assess the quality of bottom sediments, an integrated approach, combining chemical and ecotoxicological analyses, is needed.

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Section: Introductionmentioning

confidence: 98%

Distribution of Trace Elements, Rare Earth Elements and Ecotoxicity in Sediments of the Kosva Bay, Perm Region (Russia)

Ushakova¹,

Menshikova²,

Блинов³

et al. 2022

J. Ecol. Eng.

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“…Bioassays are a useful tool for ecological risk assessment of the level of sediment contamination [48][49][50][51]. They are a good addition to chemical analysis, as they thoroughly describe the accumulation of toxic elements in sediments as well as their bioavailability and interaction [52][53][54]. This testing is widely used in the environmental assessment of sediments affected by AMD with low pH values, high sulfate, and TE concentrations [55][56][57].…”

Section: Introductionmentioning

confidence: 99%

Environmental Assessment Impact of Acid Mine Drainage from Kizel Coal Basin on the Kosva Bay of the Kama Reservoir (Perm Krai, Russia)

Ushakova

Menshikova

Blinov

et al. 2022

Water

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The Kosva Bay is permanently affected by acid mine drainage (AMD) from Kizel Coal Basin in the Perm Krai of Russia. This discharge is released in the middle part of the Kosva River from the abandoned mines. This study investigates the current trace element (TE) concentrations for Zn, Cu, Pb, Ni, Cr, Cd, As, and Hg and the mineral composition, major oxides, grain size of sediments, and acute toxicity using two test organisms within the site of AMD downstream from the Kosva River and up to the Kosva Bay of Kama Reservoir. The objectives of this study were to analyze the quality of sediment and level pollution of Kosva Bay using pollution and ecotoxicological indices. The environmental indices, namely the contamination factor (CF), the geoaccumulation index (Igeo), and the potential ecological risk factor ( indicate contamination by Cr and Pb in sediments at the site of AMD, with the highest values for Cr, Cu, and As in the Kosva Bay sediments downstream of abandoned coal mines. The results of Igeo and CF average values in bay of sediments showed different degrees of contamination, from moderate contamination to considerable contamination, respectively. According to the potential ecological risk index (RI) values, the Kosva Bay sediments exhibited low to moderate risk, and As and Cd have the highest contribution rate. According to LAWA and the Polish geochemical classification of sediments, sediments of the bay correspond to the highest levels (IV–III classes) for Cr, Ni, and Hg. Based on the SQGC, Hg, Cd, Cr, and Ni are the most probable for resulting in adverse effects on aquatic organisms in this study. The results of this study indicate that complex pollution and ecotoxicological indices must be supported by ecotoxicologal tests. High precipitation totals, low evaporation rates, and flow regulation stream by the Shirokovsky Reservoir located upstream from abandoned coal mines provide significant fluctuations in streamflow, which is probably the most important factor controlling the distribution and mobility of TE in the studied sediments.

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“…Поэтому природная вода представляет собой сложную систему, содержащую различного рода компоненты и примеси, способные существенно изменять её свойства, которые сохраняются в течение длительного времени [2]. Вполне закономерно, что изучением проблем загрязнения ОС, разработкой методов мониторинга и контроля за её состоянием занимается большое количество исследователей [3][4][5]. Среди промежуточных продуктов окислительновосстановительных процессов в природных водах важную роль играют активные формы кислорода (АФК), которые являются и инициаторами процессов перекисного окисления липидов (ПОЛ) в биологических объектах любой степени сложности.…”

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The role of the oxidation processes in toxigenization of the nature water after the public utility accident

Shishkina,

Povkh,

Shvydkiy

2024

TaAE

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As known, the lipid peroxidation processes play an important role in regulation of the metabolism in the biological system of varying complexity. Besides, it is shown that the state of the physicochemical regulatory system of the lipid peroxidation is a base for the ecological monitoring, and the disruptions in the redox-state of the natural water is due to a development of its toxic properties. However, the status of lipid peroxidation process after the public utility accident is poorly studied. The aim of this work was to study dynamics of the lipid composition and its physicochemical properties in samples of the Dubna River water after the accident with sewer in Verbilki (June 2020) to assess their role in toxigenization of the nature water. The low content of hydrophobic compounds and no phospholipids identified in the natural water before the accident. Five days after the accident, the content of the hydrophobic compound was 8.4 times higher than the initial value. Within 9 days after the accident, the phospholipids in water samples are predominantly in the easily oxidizable fractions. These data are confirmed by UV-spectrophotometry and TLC methods. The data obtained and the literature analysis allow us to conclude that a significant increase in the content of hydrophobic compounds (including ketodienes and fat acids) with pronounced toxic properties and lytic effect on biological membranes causes toxigenization of natural water.

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Chemistry and Toxicity of Bottom Sediments in Small Watercourses of St. Petersburg

Cited by 10 publications

References 23 publications

Distribution of Trace Elements, Rare Earth Elements and Ecotoxicity in Sediments of the Kosva Bay, Perm Region (Russia)

Distribution of Trace Elements, Rare Earth Elements and Ecotoxicity in Sediments of the Kosva Bay, Perm Region (Russia)

Environmental Assessment Impact of Acid Mine Drainage from Kizel Coal Basin on the Kosva Bay of the Kama Reservoir (Perm Krai, Russia)

The role of the oxidation processes in toxigenization of the nature water after the public utility accident

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