Sources and distribution of 241Am in the vicinity of a deep geologic repository

Thakur, P.; Ward, Anderson L.

doi:10.1007/s11356-018-3712-5

Cited by 10 publications

(5 citation statements)

References 74 publications

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“…Cm(III) can be used as a molecular probe to mimic the chemical speciation and behaviour of trivalent actinides such as 241 Am due to its excellent fluorescence properties (Edelstein et al, 2006). 241 Am concentrations in contaminated areas range from 4 to 10.004 Bq/kg soil (Thakur and Ward, 2019). These concentrations correspond to 1.3 x 10 -7 to 3.3 x 10 -4 µM Am III .…”

mentioning

confidence: 99%

“…The Chernobyl nuclear power plant accident in 1986 was responsible for an environmental accumulation of about 1.5 x 10 14 Bq of 241 Am through the decay of approximately 6x10 15 Bq of 241 Pu released from this plant (Thakur and Ward, 2019). This corresponds to 1181 g of 241 Am and illustrates the dire need for knowledge of the behaviour of trivalent actinides in biological systems.…”

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confidence: 99%

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Microbial interaction with and tolerance of radionuclides: underlying mechanisms and biotechnological applications

López-Fernández

Jroundi

Ruiz-Fresneda

et al. 2020

Microbial Biotechnology

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Radionuclides (RNs) generated by nuclear and civil industries are released in natural ecosystems and may have a hazardous impact on human health and the environment. RN-polluted environments harbour different microbial species that become highly tolerant of these elements through mechanisms including biosorption, biotransformation, biomineralization and intracellular accumulation. Such microbial-RN interaction processes hold biotechnological potential for the design of bioremediation strategies to deal with several contamination problems. This paper, with its multidisciplinary approach, provides a state-of-theart review of most research endeavours aimed to elucidate how microbes deal with radionuclides and how they tolerate ionizing radiations. In addition, the most recent findings related to new biotechnological applications of microbes in the bioremediation of radionuclides and in the long-term disposal of nuclear wastes are described and discussed.

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confidence: 99%

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confidence: 99%

Microbial interaction with and tolerance of radionuclides: underlying mechanisms and biotechnological applications

López-Fernández

Jroundi

Ruiz-Fresneda

et al. 2020

Microbial Biotechnology

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“…Although stratospheric fallout from high altitude detonations spread evenly over the landscape from high to low northern hemisphere latitudes and in greater quantities in more rainy climates, ground‐based detonations resulted in localized “hot spots” of radionuclide contamination, particularly in semiarid and arid regions prone to dust emissions (Simon et al., 2004). An accidental release of radioactive dust from a deep geological repository in southwestern North America resulted in a temporary spike in local dust radioactivity that returned to pre‐release levels consistent with the load of anthropogenic radionuclides in the soil (Thakur & Ward, 2019). Miller and McClain (2007) review potential health problems when aerosolized depleted uranium used in munitions and manufacturing is inhaled.…”

Section: Effects On Environmental Healthmentioning

confidence: 99%

Health and Safety Effects of Airborne Soil Dust in the Americas and Beyond

Tong

Gill

Sprigg

et al. 2023

Reviews of Geophysics

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Risks associated with dust hazards are often underappreciated, a gap between the knowledge pool and public awareness that can be costly for impacted communities. This study reviews the emission sources and chemical, physical, and biological characteristics of airborne soil particles (dust) and their effects on human and environmental health and safety in the Pan‐American region. American dust originates from both local sources (western United States, northern Mexico, Peru, Bolivia, Chile, and Argentina) and long‐range transport from Africa and Asia. Dust properties, as well as the trends and interactions with criteria air pollutants, are summarized. Human exposure to dust is associated with adverse health effects, including asthma, allergies, fungal infections, and premature death. In the Americas, a well‐documented and striking effect of soil dust is its association with Coccidioidomycosis, commonly known as Valley fever, an infection caused by inhalation of soil‐dwelling fungi unique to this region. Besides human health, dust affects environmental health through nutrients that increase phytoplankton biomass, contaminants that diminish water supply and affect food (crops/fruits/vegetables and ready‐to‐eat meat), spread crop and marine pathogens, cause Valley fever among domestic and wild animals, transport heavy metals, radionuclides and microplastics, and reduce solar and wind power generation. Dust is also a safety hazard to road transportation and aviation, in the southwestern US where blowing dust is one of the deadliest weather hazards. To mitigate the harmful effects, coordinated regional and international efforts are needed to enhance dust observations and prediction capabilities, soil conservation measures, and Valley fever and other disease surveillance.

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“…Although stratospheric fallout from high altitude detonations spread evenly over the landscape from high to low northern hemisphere latitudes and in greater quantities in more rainy climates, ground-based detonations resulted in localized "hot spots" of radionuclide contamination, particularly in semiarid and arid regions prone to dust emissions (Simon et al, 2004). An accidental release of radioactive dust from a deep geological repository in southwestern North America resulted in a temporary spike in local dust radioactivity that returned to pre-release levels consistent with the load of anthropogenic radionuclides in the soil (Thakur & Ward, 2019). Miller and McClain (2007) review potential health problems when aerosolized depleted uranium used in munitions and manufacturing is inhaled.…”

Section: Radioactive Contamination (Radionuclides) In Dustmentioning

confidence: 99%

Health and Safety Effects of Airborne Soil Dust in the Americas and Beyond

Tong

Baklanov

Barker

et al. 2021

Preprint

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Risks associated with dust hazards are often underappreciated, a gap between the knowledge pool and public awareness that can be costly for impacted communities. This study reviews the emission sources and chemical, physical, and biological characteristics of airborne soil particles (dust) and their effects on human and environmental health and safety in the Pan-American region. American dust originates from both local sources (western United States, northern Mexico, Peru, Bolivia, Chile, and Argentina) and long-range transport from Africa and Asia. Dust properties, as well as the trends and interactions with criteria air pollutants, are summarized. Human exposure to dust is associated with adverse health effects, including asthma, allergies, fungal infections, and premature death. In the Americas, a well-documented and striking effect of soil dust is its association with Coccidioidomycosis, commonly known as Valley fever, an infection caused by inhalation of soil-dwelling fungi unique to this region. Besides human health, dust affects environmental health through nutrients that increase phytoplankton biomass, contaminants that diminish water supply and affect food (crops/ fruits/vegetables and ready-to-eat meat), spread crop and marine pathogens, cause Valley fever among domestic and wild animals, transport heavy metals, radionuclides and microplastics, and reduce solar and wind power generation. Dust is also a safety hazard to road transportation and aviation, in the southwestern US where blowing dust is one of the deadliest weather hazards. To mitigate the harmful effects, coordinated regional and international efforts are needed to enhance dust observations and prediction capabilities, soil conservation measures, and Valley fever and other disease surveillance.Plain Language Summary Soil particles suspended in the air, commonly known as dust, impose substantial risks to many sectors of society, including human health, environmental health, transportation safety and the general economy. This work focuses on the dust effects in the Pan-American region, where the knowledge is rather fragmented, but impacts are costly.

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Sources and distribution of 241Am in the vicinity of a deep geologic repository

Cited by 10 publications

References 74 publications

Microbial interaction with and tolerance of radionuclides: underlying mechanisms and biotechnological applications

Microbial interaction with and tolerance of radionuclides: underlying mechanisms and biotechnological applications

Health and Safety Effects of Airborne Soil Dust in the Americas and Beyond

Health and Safety Effects of Airborne Soil Dust in the Americas and Beyond

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