Green Route to Arsenic Detoxification: Mechanochemical Transformation of As₂O₃ to As(0)

ACS Sustainable Chemistry & Engineering, Год журнала: 2024, Номер 12(7), С. 2900 - 2910

Опубликована: Фев. 7, 2024

With the continuous exploitation of arsenic-containing resources and growing concern over arsenic contamination, disposal has become a global challenge. Elemental arsenic, because its nontoxic nature, is considered preferred form for detoxification mitigation. We introduce an innovative eco-friendly method to convert highly toxic trioxide into nonpoisonous elemental via mechanochemical processing at room temperature. Utilizing zinc powder as reductant acetic acid reaction medium, we achieved remarkable reduction efficiency 92.5%, producing approximately 99% purity. Thermodynamic analysis revealed pivotal role in stabilizing system eliminating formation arsine. Density functional theory calculations further confirmed that H3AsO3 on surface was dominant Zn–CH3COOH–As2O3 system. The introduction mechanical force lowered relative energy reaction, resulting superior performance under relatively mild conditions. These findings could pave way safe waste offer sustainable route reducing toxicity trioxide.

Язык: Английский

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Prospects on arsenic remediation using organic cellulose-based adsorbents

Industrial Crops and Products, Год журнала: 2023, Номер 201, С. 116928 - 116928

Опубликована: Май 26, 2023

Язык: Английский

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Arsenic Contamination of Groundwater Is Determined by Complex Interactions between Various Chemical and Biological Processes

Toxics, Год журнала: 2024, Номер 12(1), С. 89 - 89

Опубликована: Янв. 19, 2024

At a great many locations worldwide, the safety of drinking water is not assured due to pollution with arsenic. Arsenic toxicity matter both systems chemistry and biology: it determined by complex intertwined networks chemical reactions in inanimate environment, microbes that human body. We here review what known about these their interconnections. then discuss how consideration aspects arsenic levels groundwater may open up new avenues towards realization safer water. Along such avenues, geochemical microbiological conditions can optimize microbial ecology vis-à-vis reduced toxicity.

Язык: Английский

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New Generation Nanoadsorbents and Conventional Techniques for Arsenic Removal from Waters

Journal of the Turkish Chemical Society Section A Chemistry, Год журнала: 2024, Номер unknown, С. 845 - 868

Опубликована: Март 3, 2024

Nowadays, with excessive use due to rapid population growth, growing industry, and technological developments, environmental pollution is also increasing reaching a point where it threatens the health of humans. The alarming increase in mostly seen form water pollution. Water has reached levels that threaten human health. There are difficulties accessing clean many parts world as result restricting natural resources polluted by both activities causes. Therefore, intense efforts made remove especially heavy metals other harmful substances pollute water. Among these toxic threatening humans, arsenic at top list most dangerous one. In recent years, methods techniques have been developed addition classical for removing pollutants from this study, conventional used treatment arsenic-contaminated waters, encountered removal process, advantages disadvantages were critically reviewed light current past information. addition, detailed comparative information given about nano-sized adsorbents, which an innovative approach adsorption method, one methods.

Язык: Английский

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Neurotoxic effects of low dose ranges of environmental metal mixture in a rat model: The benchmark approach

Environmental Research, Год журнала: 2024, Номер 252, С. 118680 - 118680

Опубликована: Март 30, 2024

Язык: Английский

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Atomic spectrometry update: review of advances in elemental speciation

Journal of Analytical Atomic Spectrometry, Год журнала: 2024, Номер 39(7), С. 1629 - 1664

Опубликована: Янв. 1, 2024

This review covers advances in elemental speciation by a range of coupled techniques, including HPLC-ICP-MS, HPLC-HG-AFS and GC-ICP-MS.

Язык: Английский

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The Impact of Induced Industrial and Urban Toxic Elements on Sediment Quality

Water, Год журнала: 2024, Номер 16(17), С. 2485 - 2485

Опубликована: Сен. 1, 2024

Abstract: The increasing population has subjected rivers and streams to high levels of both industrial domestic pollution. Significant environmental challenges have been brought about by their effects, particularly with regard biota, ecosystem processes, soil quality, groundwater This study examined the effects human activity applying pollution index models evaluate input toxic elements in river sediments. Prior sediment quality analysis, total amount arsenic (As), lead (Pb), cadmium (Cd), mercury (Hg), thorium (Th), uranium (U) was determined concentration range 1.09–10.0 mg/kg, 8.53–475 0.12–0.16 4.85–77.5 3.14–5.9 mg/kg 0.93–2.86 respectively. enrichment factor, contamination load index, geo-accumulation revealed alarmingly Pb Hg at some sampling points, which are related possible input, ranging from severe considerable contamination. low ranges indices suggest through natural weathering process atmospheric deposition. Pearson correlation coefficient a significant between Pb-Fe As-Fe, suggesting possibility acid mine Continual monitoring is essential minimize impact sustain health quality.

Язык: Английский

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Arsenic Exposure Triggers Nonalcoholic Fatty Liver Disease through Repressing S-Adenosylmethionine-Dependent Histone Methylation in Rats

Environmental Science & Technology, Год журнала: 2025, Номер 59(1), С. 268 - 278

Опубликована: Янв. 2, 2025

Arsenic (As) is a toxic metalloid widespread in the environment, and its exposure has been associated with variety of adverse health outcomes. As demonstrated to cause nonalcoholic fatty liver disease (NAFLD), underlying epigenetic mechanisms remain largely unknown. This study aimed investigate roles histone modifications low-level exposure-induced NAFLD rats. The results showed that caused lipid accumulation upregulated expression metabolism-related genes Fabp1, Srebf1, Apoc3, while downregulated Acox1 Cpt1a rat liver. In addition, it was found inorganic arsenite (iAsIII) methylated DMA, S-adenosylmethionine (SAM) level decreased, which would contribute repression H3K9me1/2 after exposure. vitro studies revealed SAM supplementation attenuated by restoring HepG2 cells, further confirmed our animal results. Therefore, suggested methylation depleted SAM, inhibited activated Apoc3 expressions, leading upon Overall, these data shed new light on role SAM-mediated As-triggered NAFLD, could be useful for prevention intervention hepatotoxicity induced environmental

Язык: Английский

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Could the Effect of Arsenic on the Testis be Reversed after Removing the Insult? A Meta-analysis Study

Biological Trace Element Research, Год журнала: 2025, Номер unknown

Опубликована: Янв. 9, 2025

Язык: Английский

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Groundwater Arsenic Contamination and Human Health Risks: A Case Study from the Tongon Gold Mining Area, Côte d'Ivoire

International Research Journal of Pure and Applied Chemistry, Год журнала: 2025, Номер 26(1), С. 9 - 22

Опубликована: Янв. 10, 2025

Human exposure to arsenic (As) is a worldwide concern due its toxicity, persistence and non-biodegradability. This can cause cancer neurological disorders. study focused on assessing human health risks from in groundwater near Tongon industrial mining area. The approach consisted firstly determine total As concentrations groundwater. Next, quality was ascertained through water index. Finally, the were assessed using carcinogenic non-carcinogenic indices. sampling carried out five wells May 2023 July 2023. results showed that of majority (14.46 - 32.04 µg/L) are above WHO guideline value (10 µg/L). Water index values good for P2 P5. While, waters P1, P3 P4 poor quality. indices indicated children most exposed adverse effects consumption around risk revealated adults develop cancer. Therefore, it important treat before domestic purposes.

Язык: Английский

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