Monitoring uranium mine pollution on Native American lands: Insights from tree bark particulate matter on the Spokane Reservation, Washington, USA

Flett, Lonnie; McLeod, Claire; McCarty, J. L.; Shaulis, Barry; Fain, Justin J.; Krekeler, Mark P.S.

doi:10.1016/j.envres.2020.110619

Cited by 28 publications

(25 citation statements)

References 73 publications

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“…Nuclear energy features cleanliness, high efficiency, and low carbon and thus is considered to be one of the most promising energy sources ( Wang et al., 2020 ). Uranium is the most common nuclear fuel, uranium-containing wastewater runs through the entire nuclear energy utilization process, and a series of environmental problems caused by it have attracted increasing attention ( Flett et al., 2021 ). In addition, from the point of improving the utilization of uranium resources, the separation and enrichment of U(VI) from wastewater are of great practical significance ( Zou et al., 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Hydrolytically stable foamed HKUST-1@CMC composites realize high-efficient separation of U(VI)

et al. 2021

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Summary HKUST-1@CMC (HK@CMC) composites that show good acid and alkali resistance and radiation resistance were successfully synthesized by introducing carboxymethyl cellulose (CMC) onto the surface of HKUST-1 using a foaming strategy. For the first time, the composites were explored as efficient adsorbents for U(VI) trapping from aqueous solution, with encouraging results of large adsorption capacity, fast adsorption kinetics, and desirable selectivity toward U(VI) over a series of competing ions. More importantly, a hybrid derivative film was successfully prepared for the dynamic adsorption of U(VI). The results show that ∼90% U(VI) can be removed when 45 mg L −1 U(VI) was passed through the film one time, and the removal percentage is still more than 80% even after four adsorption-desorption cycles, ranking one of the most practical U(VI) scavengers. This work offers new clues for application of the Metal-organic-framework-based materials in the separation of radionuclides from wastewater.

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Section: Introductionmentioning

confidence: 99%

Hydrolytically stable foamed HKUST-1@CMC composites realize high-efficient separation of U(VI)

et al. 2021

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“…30 μg/L-1) in spring water, and detected Uranium (6,614 mg/kg−1), Vanadium (15,814 mg/kg−1), and Arsenic (40 mg/kg−1) in mine waste solids (Blake et al, 2015). Another study examined tree bark on the Spokane reservation (Washington), nearby the Midnight Mine Superfund site, finding a high geo-accumulation index for Uranium and a moderate index for Thorium (Flett et al, 2021). Uranium was also detected in stream sediments on Inuit Territory in Labrador, Canada, proximal to the Abandoned Kitts-U mine site (up to 214.46 mg/kg detected, exceeding the max.…”

Section: Resultsmentioning

confidence: 99%

Contaminated Sites and Indigenous Peoples in Canada and the United States: A Scoping Review

Chong

Basu

2022

Preprint

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Background: Indigenous communities in Canada and the US are disproportionately exposed to contaminated sites, often arising from industrial and waste disposal activities. For instance, ~34% of US EPA Superfund sites are of Native American interest, and ~29% of Canadian federal contaminated sites are on Indigenous reserve land. Contaminated sites pose unique challenges to many Indigenous peoples who consider the land as an integral part of food systems, culture, and the economy. Federal management of contaminated sites is challenged by epistemological differences, regulatory barriers, and minimal scientific research. Objectives: This scoping review aimed to identify and map information on contaminated sites and Indigenous peoples in Canada and the US, namely: 1) the relationship between contaminated sites and Indigenous people, and their land and food systems; 2) strategies, challenges, and successes for contaminated sites assessment and management on Indigenous land; and 3) Indigenous leadership and inclusion in contaminated site assessment and management. Methods: Three streams of data were retrieved from January to March 2022: a systematic literature search (key word groups: Indigenous people and contaminated sites); a grey literature search; and an analysis of federal contaminated site data (Canadian Federal Contaminated Sites Inventory and US EPA Superfund Database). Results: Our search yielded 49 peer-reviewed articles, 20 pieces of grey literature, and 8114 federal site records (1236 Superfund, 6878 FCSI), evidencing the contamination of the lands of 815 distinct Indigenous tribes and nations and the presence of 440 different contaminants or contaminant groups. Minimal information is available on the potential health and ecological effects, assessment and management of risks, and collaboration on contaminated site processes relative to the number of sites on or adjacent to Indigenous lands. Discussion: By integrating three diverse data streams we discovered a multi-disciplinary yet disparate body of information. The results point to a need to prioritize holism, efficiency, and Indigenous leadership in contaminated site assessment, management, and research. This should include a focus on community-specific approaches to site assessment and management; a re-conceptualization of risks related to sites that privileges Indigenous epistemologies; greater collaboration between networks such as the scientific community, Indigenous communities, and federal governments; and a re-evaluation of current management frameworks with Indigenous leadership at the forefront.

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“…The SPM retention efficiency on a unit greening land (AE land ) of different plant species was calculated by using Equation (10):…”

Section: Data Presentationmentioning

confidence: 99%

“…Thus, PM pollution is gaining wide attention around the world. Studies have shown that urban vegetation (e.g., leaves, tree barks) (e.g., [7][8][9][10]) can accumulate PM from the air more effectively than other building/land surfaces due to the extensive leaf area, the complex micromorphology, and the structure of the vegetation crown changes the turbulence of air movement above and within the canopies [11]. Therefore, mitigating and controlling PM pollution using urban forests has attracted more and more attention in recent years [12,13].…”

Section: Introductionmentioning

confidence: 99%

Particle Retention Capacity, Efficiency, and Mechanism of Selected Plant Species: Implications for Urban Planting for Improving Urban Air Quality

Wang

Shi

2021

Plants

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Atmospheric particulate matter (PM) has been of concern owing to its negative effects on human health and its role in environmental degradation. For mitigation purposes, it is important to select the most efficient plant species in urban greening. Here, a fast, cost-saving methodology was first added to the conventional method to investigate the size-resolved PM retention capacity and efficiency of twenty plant species. Surface PM (SPM), which can be removed by water and brushing, accounted for 44.9%−66.9% of total PM, in which the water-soluble PM (DPM) accounted for 12.9%−22.1% of total PM. A large mass proportion of in-wax PM (14.1%−31.7%) was also observed. Platycladus orientalis, Eriobotrya japonica, Viburnum odoratissimum, Magnolia grandiflora had the highest AEleaf (retention efficiency on per unit leaf area) to retain SPM within different diameter classes (DPM, PM0.1-2.5, PM2.5-10, PM>10). AEplant (retention efficiency of individual tree) varied greatly among different plant species, mainly due to the dependence on the total area of a tree. AEland (retention efficiency on per unit green area) is a suitable index for PM retention ability and efficiency. In general, P. orientalis, V. odoratissimum, Pittosporum tobira, Photinia serrulate, M. grandiflora, E. japonica were the efficient species in retaining PM at different scales (i.e., leaf, individual tree, green area). The species like Trifolium repens, Phyllostachys viridis, were the least efficient plant species. The investigated species are all evergreen species, which will remove PM throughout the whole year, even in winter. So, we recommended that the plant species with the highest PM retention efficiency can be used in urban greening. Meanwhile, horticulture practices should also be considered to improve the leaf area index to improve their PM retention and air purification abilities.

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Monitoring uranium mine pollution on Native American lands: Insights from tree bark particulate matter on the Spokane Reservation, Washington, USA

Cited by 28 publications

References 73 publications

Hydrolytically stable foamed HKUST-1@CMC composites realize high-efficient separation of U(VI)

Hydrolytically stable foamed HKUST-1@CMC composites realize high-efficient separation of U(VI)

Contaminated Sites and Indigenous Peoples in Canada and the United States: A Scoping Review

Particle Retention Capacity, Efficiency, and Mechanism of Selected Plant Species: Implications for Urban Planting for Improving Urban Air Quality

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