The Sorben-Tec system for rapid dosimetric evaluation of 137Cs in drinking water

Remez, V. P.; Семенищев, В. С.; Воронина, А. В.; Ioshin, Alexey A.

doi:10.1007/s10967-016-4902-6

Cited by 6 publications

(1 citation statement)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The water samples were filtered in situ through sandwich-type Petryanov filters (with a pore size of 0.5 µm) to separate suspended material from solution [48]. Dissolved 137 Cs was immobilized by two sequential cartridges of cellulose-based and iron hexacyanoferrateimpregnated ANFEZH sorbent (EKSORB Ltd., Ekaterinburg, Russia) [10,49,50]. Alternatively, the filtrate was collected into plastic containers and 1 mL of 6M nitric acid was added for direct determination of activity.…”

Section: Sample Analysismentioning

confidence: 99%

Reconstruction of the Long-Term Dynamics of Particulate Concentrations and Solid–Liquid Distribution of Radiocesium in Three Severely Contaminated Water Bodies of the Chernobyl Exclusion Zone Based on Current Depth Distribution in Bottom Sediments

Konoplev

Laptev

Igarashi

et al. 2021

Land

View full text Add to dashboard Cite

Given the importance of understanding long-term dynamics of radionuclides in the environment in general, and major gaps in the knowledge of 137Cs particulate forms in Chernobyl exclusion zone water bodies, three heavily contaminated water bodies (Lakes Glubokoe, Azbuchin, and Chernobyl NPP Cooling Pond) were studied to reconstruct time changes in particulate concentrations of 137Cs and its apparent distribution coefficient Kd, based on 137Cs depth distributions in bottom sediments. Bottom sediment cores collected from deep-water sites of the above water bodies were sliced into 2 cm layers to obtain 137Cs vertical profile. Assuming negligible sediment mixing and allowing for 137Cs strong binding to sediment, each layer of the core was attributed to a specific year of profile formation. Using this method, temporal trends for particulate 137Cs concentrations in the studied water bodies were derived for the first time and they were generally consistent with the semiempirical diffusional model. Based on the back-calculated particulate 137Cs concentrations, and the available long-term monitoring data for dissolved 137Cs, the dynamics of 137Cs solid–liquid distribution were reconstructed. Importantly, just a single sediment core collected from a lake or pond many years after a nuclear accident seems to be sufficient to retrieve long-term dynamics of contamination.

show abstract

Section: Sample Analysismentioning

confidence: 99%