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Occurrence, seasonal distribution and probabilistic source-specific health risk assessment of dissolved trace metals in southwestern rivers, Nigeria.
Sci Total Environ
January 2025
Department of Chemistry, Division of Physical and Computational Sciences, University of Pittsburgh, Bradford, 16701, PA, USA.
The presence of trace metals (TMs) in river systems at certain levels can cause toxicity and pose significant risks to human health. In this study, nine TMs (Ba, Cd, Cr, Cu, Fe, Mn, Ni, Pb, and Zn) were determined by inductively coupled plasma optical emission spectrometry (ICP-OES) in water samples collected from six major rivers from southwestern Nigeria during both dry and wet seasons. Across both seasons, the mean concentrations (mg/L) ranged from 0.
View Article and Find Full Text PDFThe role of photooxidation and organic matter in Cr(III) and Cr(VI) interactions with poly(lactic acid) microplastics in aqueous solution.
Sci Total Environ
January 2025
Department of Chemistry, Physics, Environmental and Soil Sciences, University of Lleida - AGROTECNIO-CERCA Center, Rovira Roure 191, 25198 Lleida, Spain.
There is limited research on the influence of environmental variables on the interactions of biodegradable microplastics with chromium. This study reports the results of adsorption experiments with Cr and poly(lactic acid) (PLA) in synthetic aqueous solutions. It addresses the influence of the initial oxidation state, Cr(III) or Cr(VI), the effects of UV irradiation and the presence of organic matter.
View Article and Find Full Text PDFQuantification of heavy metal exposure in a British population cohort links total mercury levels in plasma with skin tissue-specific changes in mitochondrial-related gene expression.
Sci Total Environ
January 2025
Department of Twin Research and Genetic Epidemiology, King's College London, 3-4th Floor South Wing Block D, St Thomas' Hospital, Westminster Bridge Road, London SE1 7EH, UK. Electronic address:
Heavy metals in our direct environment have profound effects on human health and while some are essential for life, others can be toxic. In vivo studies often focus on clinical features caused by overexposure to, or by deprivation of a heavy metal. However, to understand the cellular impact of heavy metals on health, studies in healthy volunteers before symptom onset are needed.
View Article and Find Full Text PDFPure CO and impure CO-SO-NO-O reactions with carbon storage site underlying seals: Coaly mudstones and carbonate cemented sandstones.
Sci Total Environ
January 2025
School of the Environment, University of Queensland, QLD, Australia.
The transition to net zero emissions requires the capture of carbon dioxide from industrial point sources, and direct air capture (DAC) from the atmosphere for geological storage. Dissolved CO has reactivity to rock core, and while the majority of previous studies have concentrated on reservoir rock or cap-rock reactivity, the underlying seal formation may also react with CO. Drill core from the underlying seal of a target CO storage site was reacted at in situ conditions with pure CO, and compared with an impure CO stream with SO, NO and O that could be expected from hard to abate industries.
View Article and Find Full Text PDFEffects of cadmium on female Drosophila melanogaster and its transgenerational inheritance effects.
J Environ Manage
January 2025
College of Life Sciences, Shaanxi Normal University, Xi'an, 710119, China. Electronic address:
Cadmium (Cd) is a silvery-white and shiny heavy metal that is common in daily life and can adversely affect the development, lifespan, and reproduction of organisms. In this study, Drosophila melanogaster (F) were cultured from eggs to adults in medium containing different Cd concentrations (0, 2.25, and 4.
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