Migration of 137Cs in tributaries, lake water and sediment of Lago Maggiore (Italy, Switzerland) – analysis and comparison with Lago di Lugano and other lakes

Putyrskaya, Victoria; Klemt, E.; Röllin, Stefan

doi:10.1016/j.jenvrad.2008.10.005

Cited by 57 publications

(40 citation statements)

References 27 publications

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“…The value of NH 4 + concentration less than 0.03 mg/L was determined in Lake Lago Maggiore [26]. The NH 4 + concentration value was 0.05 mg/L (close to the value of 0.03 mg/L in Lake Lago Maggiore [26]) and such a concentration level is characteristic of the surface water layer due to the rather high oxygen concentration. Under such oxidizing conditions, plutonium in the lake water could be as Pu(IV), Pu(V), and Pu(VI).…”

Section: Physical and Chemical Parameters Of Treated Systemsmentioning

confidence: 52%

“…The macroelement potassium (the competing ion of 137 Cs) showed a rather low concentration, it equalled 0.90 mg/L. In Italian Lake Lago Maggiore within the water column it was nearly constant and equalled 1.5 mg/L [26]. Na…”

Section: Physical and Chemical Parameters Of Treated Systemsmentioning

confidence: 96%

“…Changes in the 137 Cs activity concentration in the filtered water of Lake Juodis, Lithuania, were in the range of 1.4±0.2 to 3.3±0.5 Bq/m 3 within different seasons of the 2004-2006 period [25]. The 137 Cs activity concentration in the water of Lake Lago Maggiore, Italy, was rather constant at less than 1 mBq/L in 2004 [26].…”

Section: Introductionmentioning

confidence: 91%

See 2 more Smart Citations

Investigation of ¹³⁷Cs and plutonium isotope sorption–desorption in bio- and synthetic materials

Lukšienė¹,

Žukauskaitė²,

Tarasiuk³

et al. 2016

Lith. J. Phys.

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Investigations on the pre-concentration of radionuclides ( 137 Cs and plutonium isotopes) from fresh water on solid matrices are presented in this study. A particular focus was given to an innovative physico-chemical removal process such as adsorption of radionuclides from an aqueous medium on new type adsorbents, environmental-friendly materials. Sorption of the tested radionuclides from the lake water solution by environmental assays and synthetic sorbents was compared. Lake water was analyzed for main anions, micro-and macroelements, using ion and atomic absorption chromatography methods, respectively. Batch type and dynamic flow column laboratory experiments were performed. The sorption-desorption capacity of radionuclides by the tested sorbents was estimated based on the results of α-and γ-spectrometric measurements. According to the removal efficiency results, moss can be considered as the best sorbent for plutonium of the tested environmental-friendly sorbents, whereas the moss sorption capacity exceeded even that of the tested synthetic ones. The highest Cs and different plutonium sorption in the moss apparently indicates different binding properties of these radionuclides to the moss, therefore further investigations on this issue are foreseen.

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Section: Physical and Chemical Parameters Of Treated Systemsmentioning

confidence: 52%

Section: Physical and Chemical Parameters Of Treated Systemsmentioning

confidence: 96%

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Investigation of ¹³⁷Cs and plutonium isotope sorption–desorption in bio- and synthetic materials

Lukšienė¹,

Žukauskaitė²,

Tarasiuk³

et al. 2016

Lith. J. Phys.

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“…). Presumably, it is related to the processes of sediment sloughing in some areas of the central deepest part of the lake due to rather steep slopes of the bottom relief [6,30]. As it was mentioned above, due to the processes of fine sediment resuspension by southern winds in the shallow zone of the northern terrace and further withdrawal of the resuspended substances with flushing waters, the density of surface sediments in that zone was elevated, Fig.…”

Section: Discussionmentioning

confidence: 81%

“…The problems of lake contamination by radiocesium are still the focus of many studies [1][2][3][4][5][6][7][8][9]. It is related to the fact that lakes are a repository of fresh water and its mostly accessible source.…”

Section: Introductionmentioning

confidence: 99%

¹³⁷Cs in Lake Tapeliai, Lithuania

Moisejenkova¹,

Tarasiuk²,

Koviazina³

et al. 2012

Lith. J. Phys.

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The results of an integrated study of the radiocesium behaviour in Lake Tapeliai by using not only conventional data on radiocesium activity concentrations in lake water and sediments but also a complex data set on seasonal variations and vertical profiles of standard water variables are presented. Radiocesium activity concentrations in lake water and a vertical structure of the water column considerably depend on radiocesiumenriched inflows of the coloured waters from the lake's swampy watershed. The global fallouts are mainly responsible for radiocesium inventory in lake sediments, where maximum values of radiocesium are found in the upper part of the water column above the ~5.4 m depth. The maximum values of radiocesium inventories in lake sediments are consistent with the respective densities of its deposits in the nearest forest soils. The main process of sediment activation is a direct sorption of radiocesium onto the sediment surface. Sedimentation rates in the lake mainly vary in the range of 3.5-5 mm yr -1 . The lake bottom feeding sources located mainly on the southern terrace as well as their related near-bottom flows reduce respective sedimentation and radiocesium inventories in sediments. The thermal regime of the near-bottom water in Lake Tapeliai in winter strongly depends on the meteorological conditions in autumn and may be classified as varying from super warm to moderately warm. Under conditions of a super warm regime, the elevated radiocesium concentrations in the near-bottom waters may be partially due to the thermodynamic mechanism of its release from the bottom sediments.

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Hypolimnetic oxygen depletion rates in deep lakes: Effects of trophic state and organic matter accumulation

Steinsberger

Schwefel

Wüest

et al. 2020

Limnology & Oceanography

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This study investigated the consumption of oxygen (O 2) in 11 European lakes ranging from 48 m to 372 m deep. In lakes less than~100 m deep, the main pathways for O 2 consumption were organic matter (OM) mineralization at the sediment surface and oxidation of reduced compounds diffusing up from the sediment. In deeper lakes, mineralization of OM transported through the water column to the sediment represented a greater proportion of O 2 consumption. This process predominated in the most productive lakes but declined with decreasing total phosphorous (TP) concentrations and hence primary production, when TP concentrations fell below a threshold value of~10 mg P m −3. Oxygen uptake by the sediment and the flux of reduced compounds from the sediment in these deep lakes were 7.9-10.6 and 0.6-3.6 mmol m −2 d −1 , respectively. These parameters did not depend on the lake's trophic state but did depend on sedimentation rates for the primarily allochthonous or already degraded OM. These results indicate that in lakes deeper than~100 m, mineralization of autochthonous OM is mostly complete by the time of sedimentary burial. This explains why hypolimnetic O 2 concentrations improve more rapidly following TP load reduction in deeper lakes relative to shallower lakes, where larger sediment-based O 2 consumption by settled OM and release of reduced substances may inhibit the restoration of hypolimnetic O 2 concentrations.

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Migration of 137Cs in tributaries, lake water and sediment of Lago Maggiore (Italy, Switzerland) – analysis and comparison with Lago di Lugano and other lakes

Cited by 57 publications

References 27 publications

Investigation of ¹³⁷Cs and plutonium isotope sorption–desorption in bio- and synthetic materials

Investigation of ¹³⁷Cs and plutonium isotope sorption–desorption in bio- and synthetic materials

¹³⁷Cs in Lake Tapeliai, Lithuania

Hypolimnetic oxygen depletion rates in deep lakes: Effects of trophic state and organic matter accumulation

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Migration of 137Cs in tributaries, lake water and sediment of Lago Maggiore (Italy, Switzerland) – analysis and comparison with Lago di Lugano and other lakes

Cited by 57 publications

References 27 publications

Investigation of 137Cs and plutonium isotope sorption–desorption in bio- and synthetic materials

Investigation of 137Cs and plutonium isotope sorption–desorption in bio- and synthetic materials

137Cs in Lake Tapeliai, Lithuania

Hypolimnetic oxygen depletion rates in deep lakes: Effects of trophic state and organic matter accumulation

Contact Info

Product

Resources

About

Investigation of ¹³⁷Cs and plutonium isotope sorption–desorption in bio- and synthetic materials

Investigation of ¹³⁷Cs and plutonium isotope sorption–desorption in bio- and synthetic materials

¹³⁷Cs in Lake Tapeliai, Lithuania