Geochemical and mineralogical characterization of streams and wetlands downstream a former uranium mine (Rophin, France)

Grangeon, Sylvain; Roux, Clarisse; Lerouge, Cathérine; Chardon, Patrick; Beuzeval, Romain; Montavon, Gilles; Claret, Francis; Grangeon, Thomas

doi:10.1016/j.apgeochem.2023.105586

Cited by 7 publications

(1 citation statement)

References 52 publications

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“…Objects such as tailing dumpsites, mine drainages and exposed residual ore deposits may pose as long-term sources of TENORM release into the environment. Populations in the areas of former mining sites may be exposed to these radionuclides, including radon ( 222 Rn) and their short-lived decay products (Ivanova et al 2015;Mathuthu et al 2021;Grangeon et al 2023). Main routes of entry of such radionuclides into the human body are the consumption of polluted water and plant-based foods, as well as inhalation of dust and radon progeny.…”

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confidence: 99%

Radon Release at a Rehabilitated Uranium Mine Site and Dose Assessment (Case of the Former Beshtaugorskiy Mine, North Caucasus)

Miklyaev,

Petrova,

Sidyakin

et al. 2024

Preprint

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The article presents the results of the radon release studies at the rehabilitated uranium mine and an assessment of doses received by the population when using the territory for recreational purposes (the case of the former Beshtaugorsky uranium mine). The measurements of radon flux density from the ground surface, radon concentration in the atmospheric air and groundwater, as well as the gamma dose rate and content of natural radionuclides in soils and bedrocks were performed. It is established that abnormally high radon release associated with both a former uranium adits and natural factors such as tectonic faults. The abnormally high radon release is due to advective radon transport, mainly associated with convective thermally induced air convection in permeable zones of mountain massif; radon transport by groundwater does not affect radon emissions from the surface. The most significant source of radiation risk is the incompletely blocked adit mouths, from which mine air is periodically blown out. Radon concentration and gamma dose rate values many times exceed permissible levels in these locations. A person resting in such an area for 4 hours can lead to a dose exceeding 2 mSv. This is advisable to take measures to prevent or reduce the time people spend in the areas of former adit mouths.

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confidence: 99%