Spatial and vertical distribution of 137Cs activity concentrations in lake sediments of Turawa Lake (Poland)

Sekudewicz, Ilona; Gąsiorowski, Michał

doi:10.1007/s11356-022-21417-1

Cited by 7 publications

(4 citation statements)

References 57 publications

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“…Large amounts of TP were also identi ed in the sapropel zone in 2008 in sapropel sediments: 1.8 ± 0.6 mg g − 1 49 . Studies of the radioactive distribution of 137Cs in the bottom sediments of the reservoir have also been conducted 50 . The Turawa Reservoir is located in the area of the so-called Opole Anomaly, where, after the Chernobyl nuclear power plant accident, a relatively large deposition of this radionuclide was recorded for the area of Poland 51 .…”

Section: Identi Cation Of Water Pollution Sources In the Turawa Reser...mentioning

confidence: 99%

Ecological risks of dammed reservoir waters using the example of the Turawa Reservoir in southern Poland

Kłos,

Wiatkowski,

Skorulski

et al. 2024

Preprint

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A study of the ecological potential and the chemical pollution of the Turawa Reservoir (southern Poland), as well as an assessment of the pollution of its recharge waters, was carried out between 2019 and 2021. Four research teams took part in the study. The reservoir was chosen because of the eutrophication process that has been ongoing for several decades. Phytoplankton, phytobenthos and macrozoobenthos were surveyed as part of the ecological potential assessment. Analysed indicators were: BOD5, CODCr, nitrogen concentrations (Kjeldahl nitrogen TKN, ammonium nitrogen NH4-N, nitrate nitrogen NO3-N and total nitrogen TN) and phosphorus (orthophosphate phosphorus PO4-P and total phosphorus TP), as well as conductivity and water pH. Using ion chromatography, the ionic composition (F−, Cl−, Br−, NO2−, NO3−, PO43−, SO42−, Na+, NH4+, K+, Mg2+, Ca2+) and heavy metal concentrations (Cr, Ni, Zn, Cu, Cd, Pb) of the basin waters and the waters supplying the basin were determined. Coliforms, faecal enterococci and Salmonella spp. were also assessed. The condition of the reservoir water was assessed as poor. The poor quality of the water supplying the reservoir, and the bottom sediments, in which large quantities of, among other things, nutrients and heavy metals have accumulated over the years, have been identified as the cause. A factor related to biomass accumulation was also identified. During the vegetation cycle, due to biochemical processes taking place, the oxygen and nutrient indicators can be significantly influenced. The problem outlined characterises most European dam reservoirs, especially shallow reservoirs with low thermal stratification.

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Section: Identi Cation Of Water Pollution Sources In the Turawa Reser...mentioning

confidence: 99%

Ecological risks of dammed reservoir waters using the example of the Turawa Reservoir in southern Poland

Kłos,

Wiatkowski,

Skorulski

et al. 2024

Preprint

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“…The radionuclide 137 Cs has been extensively employed to quantify soil erosion [34,35]. Afshar et al [36] estimated the rate of soil reformation in western Iran using 137 Cs radionuclides and the erosion and deposition rates are 29.8 and 21.8 t•hm -2 a -1 , respectively.…”

Section: Introductionmentioning

confidence: 99%

Investigating the Soil Wind Erosion in the Black Soil Region of Northeast China Based on <sup>137</sup>Cs Tracer Method

Jiang,

Li,

Wang

et al. 2023

Pol. J. Environ. Stud.

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Soil wind erosion is one of the critical drivers of land degradation in the black soil region of northeastern China. In this study, 137 Cs background value and soil wind erosion rate was studied by using 137 Cs nuclide tracing technique in the black soil region of northeastern China, and wind erosion characteristics such as background value and soil erosion rate over the years were clarified, which has guiding significance for soil and water conservation and agricultural sustainable development in the black soil region of northeast China. The mean area activity of the Hilltop area was 1541 Bq•m -2 , which was lower than the background value of 1879.7 Bq•m -2 in the study area. At the top of the hill, soil erosion occurred to some extent. The 137 Cs profile has distributional characteristics that can be divided into three categories. Most of the 137 Cs area activity in Hilltop area is evenly distributed in 0-15 cm, and the 137 Cs area activity below 15 cm decreased gradually until it disappeared. The spatial difference of wind erosion rate is significant in the study area, mainly between 7.17-10.13 t•hm -2 a -1 . The average wind erosion rate of hilltops with different tillage quality depths has little difference. The average wind erosion rate is 8.60 t•hm -2 a -1 , which belongs to mild erosion. However, its erosion rate is higher than the tolerable soil loss of 2 t•hm -2 a -1 in the black soil

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“…Diaz-Asencio et al (2017) emphasized that intensified erosion of a catchment area increases the load of particles and thus the influx of pollutants into the fluvial system. Moreover, anthropogenic changes in river morphology (related to, e.g., dam construction) may affect the storage of sediments contaminated with 137 Cs (Kurikami et al 2014;Díaz-Asencio et al 2017;Funaki et al 2019;Sekudewicz and Gąsiorowski 2022). As a consequence, the reservoirs may trap significant amounts of radiocesium-bearing particles, which can also pose a serious environmental risk if this radionuclide is rereleased into the fluvial system (Ivanov et al 2021).…”

Section: Introductionmentioning

confidence: 99%

Factors controlling 137Cs distribution in bottom sediments of Koronowo Reservoir (Poland)

et al. 2022

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Purpose The main aim of this study was to investigate factors influencing the long-term distribution of 137Cs activity concentrations in the bottom sediments of the dam lake, Koronowo Reservoir, 32 years after the Chernobyl nuclear power plant accident. For this purpose, selected properties of the collected sediment samples, such as grain size, mineralogical composition, and organic matter (OM) content, were investigated. Materials and methods The samples of lake sediments were collected with a Kayak-type gravity corer. The spatial and vertical distributions of 137Cs and 40K activity concentrations in the bottom sediments were investigated based on gamma spectrometry measurements. The particle size distribution of surface lake sediments was determined using a laser particle size analyzer. SEM and XRD were used for the mineralogical analysis of the collected sediment samples. Additionally, the content of organic matter was examined in all samples using an elemental analyzer. Results The 137Cs content was significantly elevated in the case of fine-grained (< 63 µm) surface lake sediments (classified as silts, which are deposited in the profundal zone of Koronowo Lake) and ranged from 12.5 ± 4.1 to 29.2 ± 4.0 Bq kg−1. It was found that the increased concentration of 137Cs activity is more closely related to the content of the silt fraction (2–63 µm) than to the clay fraction (< 2 µm) in the collected surface lake sediments. The content of clay minerals also showed a significant positive correlation with 137Cs activity concentration in the surface lake sediments of Koronowo Lake. A similar relationship was noticed for the OM content, but it may be suspected that it is the result of radiocesium-bearing particle accumulation in OM-rich sediments. Conclusion The most important factor influencing the spatial distribution of 137Cs activity concentrations in the surface lake sediments of Koronowo Lake, apart from the bottom morphology and grain size of sediments, is the content of clay minerals. Moreover, the increased detrital inflow to the lake after the construction of the dam could have probably affected the vertical distribution of 137Cs activity concentrations in the bottom sediments, as evidenced by, e.g., the measurements of 40K activity concentration.

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Spatial and vertical distribution of 137Cs activity concentrations in lake sediments of Turawa Lake (Poland)

Cited by 7 publications

References 57 publications

Ecological risks of dammed reservoir waters using the example of the Turawa Reservoir in southern Poland

Ecological risks of dammed reservoir waters using the example of the Turawa Reservoir in southern Poland

Investigating the Soil Wind Erosion in the Black Soil Region of Northeast China Based on <sup>137</sup>Cs Tracer Method

Factors controlling 137Cs distribution in bottom sediments of Koronowo Reservoir (Poland)

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