This study on workers in a uranium mine is principally concerned with the characteristics of the cells recovered by LBA. First, alveolar macrophage function was studied (including viability, phagocytic activity, capillary adherence and migratory activity). Secondly the lymphocytes were identified as T, B, and then their mitogenic responses were studied; occurring spontaneously or in response to phytohemagglutinin or purified protein derivative. Finally, the biochemical aspects were examined (including immunoglobulins, total protein, albumin, phospholipids, potassium, calcium, magnesium, complement components, anti-proteases, etc.). We conclude that there were not demonstrable changes in cellular function in either smokers or non smokers in miners subjected to the ambient radiation of a uranium mine.
Download full-text PDF |
Source |
---|
Toxicol Res (Camb)
February 2025
Toxicology Centre, University of Saskatchewan, 44 Campus Drive, Saskatoon, SK S7N 5B3, Canada.
The mining industry, including uranium mining and milling, is of high importance in Canada. It is, however, important to consider that ore processing can result in the creation of by-products that contain radionuclides such as radium-226 (Ra). Even with the strict discharge regulations in place, there is limited evidence to suggest that the current Canadian regulatory thresholds for Ra are protective for aquatic life.
View Article and Find Full Text PDFNano Lett
January 2025
National Key Laboratory of Uranium Resources Exploration-Mining and Nuclear Remote Sensing, East China University of Technology, Nanchang 330013, China.
Efficient sacrificial-agent-free photosynthesis of HO from air and water represents the greenest, lowest-cost, most real-time avenue for HO production but remains a challenging issue. Here, we show a general and effective approach through a structural design on covalent organic frameworks (COFs) with asymmetric dual-function hybrid linkages for boosting the HO photosynthesis of the COFs. Through such design we can equip a COF with not only a catalytic active center but also a special function for isolating the D-A motif, which consequently endows the COF (CI-COF) built on asymmetric dual-function hybrid linkages with a significantly enhanced efficiency in the generation, transmission, and separation of photogenerated carriers, relative to the COF (II-COF and CC-COF) built on symmetric single-function single linkages.
View Article and Find Full Text PDFEnviron Sci Technol
January 2025
Marine Synthetic Ecology Research Center, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Guangdong Provincial Observation and Research Station for Marine Ranching in Lingdingyang Bay, China-ASEAN Belt and Road Joint Laboratory on Mariculture Technology, State Key Laboratory for Biocontrol, Sun Yat-sen University, Zhuhai 519082, China.
Plants can recruit microorganisms to enhance soil arsenic (As) removal and nitrogen (N) turnover, but how microbial As methylation in the rhizosphere is affected by N biotransformation is not well understood. Here, we used acetylene reduction assay, gene amplicon, and metagenome sequencing to evaluate the influence of N biotransformation on As methylation in the rhizosphere of , a potential As hyperaccumulator. was grown in mining soils (MS) and artificial As-contaminated soils (AS) over two generations in a controlled pot experiment.
View Article and Find Full Text PDFJ Environ Radioact
January 2025
Health Physics Division, Bhabha Atomic Research Centre, Mumbai, 400085, India; Homi Bhabha National Institute, Anushakti Nagar, Mumbai, 400094, India.
India's road construction is vital for its infrastructure growth, requiring approximately 20,000 tons of high-quality aggregates per kilometer - materials that are increasingly scarce, leading to higher costs and delays. The industrial sector, a cornerstone of the Indian economy, also struggles with waste management. Earlier studies suggested that industrial waste can be used in road construction materials however, the radiological considerations were not focused.
View Article and Find Full Text PDFArch Environ Contam Toxicol
January 2025
Toxicology Centre, University of Saskatchewan, 44 Campus Drive, Saskatoon, SK, S7N 5B3, Canada.
Mining operations in Canada, including uranium mining and milling, generate by-products containing radionuclides, including radium-226 (Ra), a long-lived, bioaccumulative calcium (Ca) analog. Despite strict discharge regulations, there is limited evidence to suggest that current thresholds for Ra adequately protect aquatic organisms. Furthermore, Canada lacks a federal water quality guideline for Ra, underscoring the need for protective limits to safeguard aquatic ecosystems.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!