Assessment of chronic low‐dose elemental and radiological exposures of biota at the Kanab North uranium mine site in the Grand Canyon watershed

Cleveland, Danielle; Hinck, Jo Ellen; Lankton, Julia S.

doi:10.1002/ieam.4095

Cited by 9 publications

(1 citation statement)

References 52 publications

(62 reference statements)

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“…Humans who use polluted water are at the same risks (Azizullah et al 2011; Wang and Yang 2016). In particular, the combined toxic effects of low dose water pollutants that are long term, subtle, cumulative, and difficult to detect should be carefully studied (Lorente et al 2015; Cleveland et al 2019; Liu et al 2020). Therefore, it is of great value to monitor water quality over time and take effective measures in an early stage.…”

Section: Introductionmentioning

confidence: 99%

Indigenous Fish–Based Assessment of Genotoxic Potentials of the Helong Reservoir in Guangzhou, China

Xian

Tang

Chen

et al. 2021

Enviro Toxic and Chemistry

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The present study was conducted to assess the genotoxic potential of water from the Helong Reservoir, which was designated as a strategic drinking water source by the Guangdong Provincial Government of China in October 2016. Four kinds of common indigenous fish samples (Labeo rohita, Cirrhinus molitorella, red tilapia, and Oreochromis niloticus) were collected at 6 sampling sites during the period from July to November 2020. Fish from the clean drinking water source of the upper reaches of the Liuxihe Reservoir in Guangzhou were collected as the control. Both the alkaline single cell gel electrophoresis assay and the micronucleus test were used to detect DNA damage and the micronucleus rate in erythrocytes of fish samples, respectively. The results indicated that there was a significant increase in comet tail length, Olive tail moment, and micronucleus rates of all fish samples compared with those of the control (p < 0.05). The order of sensitivity to DNA damage and micronucleus formation was Labeo rohita > Cirrhinus molitorella > red tilapia > Oreochromis niloticus. The results of the 2 kinds of experiments were in perfect agreement with each other. We conclude that there are obvious genotoxic effects from the water in the Helong Reservoir. As a strategic drinking water source, the safety of the Reservoir water quality should be considered. The local government should put the restoration of the Helong Reservoir water quality on the agenda as soon as possible.

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Section: Introductionmentioning

confidence: 99%

Indigenous Fish–Based Assessment of Genotoxic Potentials of the Helong Reservoir in Guangzhou, China

Xian

Tang

Chen

et al. 2021

Enviro Toxic and Chemistry

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Environmental Radiobiology

Lourenço,

Mothersill,

Arena

et al. 2023

Radiobiology Textbook

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This chapter aims to contribute to a comprehensive view of environmental radiobiology and discuss the effects of different kinds of ionizing radiation on ecosystems. The impact of ionizing radiation was considered on both organisms and the abiotic environment, assessing the fate of radionuclides in abiotic compartments (e.g., the movement through atmosphere, hydrosphere, and lithosphere) and in the trophic chains, with implications for human and non-human biota. The available methodologies for estimating radiation dose to biota were also addressed as well as the associated challenges. This chapter also focused on the impacts of ionizing radiation exposure on non-human biota from microorganisms to vertebrates, as well as on the basic concepts related to environmental radiobiology and the molecular effects associated with the exposure to different types of ionizing radiation. The particular context of Naturally Occurring Radioactive Material (NORM) contamination was also tackled, as well as its effects on non-human biota.

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Laboratory Simulation of Groundwater Along Uranium-Mining-Affected Flow Paths Near the Grand Canyon, Arizona, USA

et al. 2022

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Mining of volumetrically small, but relatively enriched (average 0.6% U3O8) breccia pipe uranium (BPU) deposits near the Grand Canyon, Arizona, USA has the potential to affect groundwater and springs in the area. Such deposits also contain base metal sulfides that can oxidize to generate acid mine drainage and release trace metals. In this study, sequential batch experiments were conducted to simulate the geochemistry of local shallow groundwater that contacts BPU ore and then moves downgradient through sedimentary strata. The experiments simulated shallow groundwater in a carbonate aquifer followed by contact with BPU ore. The experiments subsequently simulated contact with sedimentary rocks and changing oxygen availability. Concentrations of several contaminants of potential concern became substantially elevated in the waters exposed to BPU ore, including As, Co, Ni, U, and Zn, and to a lesser extent, Mo. Of these, Co, Mo, Ni, and U were minimally attenuated by downgradient processes, whereas Zn was partially attenuated. Sb and Tl concentrations were more moderately elevated but also generally minimally attenuated. Although the mixture of elements is particular to these BPU ore deposits, sulfide oxidation in the ore and carbonate buffering of pH by sedimentary rocks generates patterns of water chemistry common in acid mine drainage settings. Ultimately, downgradient concentrations of elements sourced from BPU ore will also be strongly influenced by non-geochemical factors such as the quantities of water contacting BPU materials, heterogeneity of materials along flow paths, and mixing with waters that have not contacted BPU materials.

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Assessment of chronic low‐dose elemental and radiological exposures of biota at the Kanab North uranium mine site in the Grand Canyon watershed

Cited by 9 publications

References 52 publications

Indigenous Fish–Based Assessment of Genotoxic Potentials of the Helong Reservoir in Guangzhou, China

Indigenous Fish–Based Assessment of Genotoxic Potentials of the Helong Reservoir in Guangzhou, China

Environmental Radiobiology

Laboratory Simulation of Groundwater Along Uranium-Mining-Affected Flow Paths Near the Grand Canyon, Arizona, USA

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