Environmental persistence, bioaccumulation, and ecotoxicology of heavy metals

Chemistry and Ecology, Journal Year: 2024, Volume and Issue: 40(3), P. 322 - 349

Published: Jan. 22, 2024

Heavy metals, pervasive in the environment due to natural processes and human activities, pose substantial threats ecosystems health. This study aims delve into sources, contamination pathways waters, subsequent bioaccumulation of heavy metals across various organisms. The overview encompasses an exploration environmental persistence, dynamics, ecotoxicological impacts these metals. Methodologically, this research undertakes a comprehensive review synthesizing existing literature studies on metal contamination, mechanisms, ecotoxicity. Key findings highlight protracted persistence perpetuating significant ecological balance well-being. Notably, transfer through food chains culminates their diverse organisms, raising concerns about potential toxicity, including exposure. discussion underscores imperative nature assessing pollution its ramifications Emphasizing essential role bioindicators biomarkers, article elucidates significance evaluating metal-induced stressors impact both biota populations. contributes nuanced understanding advocating for proactive measures monitoring mitigating deleterious effects

Language: Английский

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A clean and sustainable method for recycling of lithium from spent lithium iron phosphate battery powder by using formic acid and oxygen

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 920, P. 170930 - 170930

Published: Feb. 13, 2024

Language: Английский

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Ecological impacts and potential hazards of nickel on soil microbes, plants, and human health

Chemosphere, Journal Year: 2024, Volume and Issue: 357, P. 142028 - 142028

Published: April 13, 2024

Nickel (Ni) contamination poses a serious environmental concern, particularly in developing countries: where, anthropogenic activities significantly contributes to Ni accumulations soils and waters. The of agricultural with Ni, increases risks its entry terrestrial ecosystems food production systems posing threat both security safety. We examined the existing published articles regarding origin, source, accumulation, transport soil environments. Particularly, we reviewed bioavailability toxic effects invertebrates microbes, as well impact on soil-plant interactions including seed germination, nutrient uptake, photosynthesis, oxidative stress, antioxidant enzyme activity, biomass production. Moreover, it underscores potential health hazards associated consuming crops cultivated Ni-contaminated elucidates pathways through which enters chain. literature suggests that chronic exposure may have long-term implications for supply chain public. Therefore, an aggressive effort is required interdisciplinary collaboration assessing mitigating ecological contamination. It also argues these measures are necessary light increasing level pollution impacts public environment.

Language: Английский

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Discarded e-waste/printed circuit boards: a review of their recent methods of disassembly, sorting and environmental implications

Journal of Material Cycles and Waste Management, Journal Year: 2024, Volume and Issue: 26(3), P. 1277 - 1293

Published: March 2, 2024

Abstract The improper disposal of discarded electronic and electrical equipment raises environmental health concerns, spanning air pollution to water soil contamination, underscoring the imperative for responsible management practises. This review explores complex composition printed circuit boards (DPCBs), crucial components in devices. Comprising substrates, elements solder, DPCBs showcase a heterogeneous structure with metal (30.0–50.0%) non-metal (50.0–70.0%) fractions. Notably abundant precious metals such as Au, Ag, Pd, offer compelling avenue recycling initiatives. inclusion heavy flame retardants adds complexity, necessitating environmentally sound methods. Ongoing research on smart disassembly, utilising 3D image recognition technology, underscores importance accurate identification positioning (ECs). targeted approach centred valuable components, highlights its significance, albeit challenges costs capacity limitations. In mechanical techniques grinding heat application are employed extract ECs, innovations addressing gas emissions damage induced by overheating. Chemical disassembly methods, encompassing epoxy resin delamination tin removal, present promising recovery options, whilst integration chemical electrochemical processes shows potential. Efficient sorting, both manual automated is post-disassembly, sorting technologies augmenting accuracy categorisation ECs. addition, explorations into NH 3 /NH 4 + solutions selective underscore stress necessity meticulous process optimisation sustainable PCB recycling. Challenges future perspectives have also been expounded.

Language: Английский

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Environmental fate of aquatic pollutants and their mitigation by phycoremediation for the clean and sustainable environment: A review

Environmental Research, Journal Year: 2023, Volume and Issue: 240, P. 117460 - 117460

Published: Oct. 20, 2023

Language: Английский

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The Role of Complexes of Biogenic Metals in Living Organisms

Inorganics, Journal Year: 2023, Volume and Issue: 11(2), P. 56 - 56

Published: Jan. 25, 2023

Biogenic metals and their various inorganic, organometallic, coordination compounds are comprehensively studied extensively used in medical practice. Since the biogenic have chemical properties corresponding to position periodic table, biological functions different. Almost all of discussed elements an ability form complexes. Furthermore, different accessible oxidation states occupied by most these enables body catalyze oxy-reduction interactions, depending on conditions. As they nature, deficiency or excess leads numerous pathological obstructions. The application metal-based as medications is connected with capability complexes, which involved many bioreactions. usefulness therapeutic diagnostic agents also pointed out.

Language: Английский

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Plants’ molecular behavior to heavy metals: from criticality to toxicity

Frontiers in Plant Science, Journal Year: 2024, Volume and Issue: 15

Published: Aug. 30, 2024

The contamination of soil and water with high levels heavy metals (HMs) has emerged as a significant obstacle to agricultural productivity overall crop quality. Certain HMs, although serving essential micronutrients, are required in smaller quantities for plant growth. However, when present higher concentrations, they become very toxic. Several studies have shown that balance out the harmful effects complex systems needed at molecular, physiological, biochemical, cellular, tissue, whole levels. This could lead more crops being grown. Our review focused on HMs' resources, occurrences, implications. will also look how plants react HMs affect seed performance well benefits provide plants. Furthermore, examines transport genes their metabolic responses HMs. We examined obstacles potential management strategies.

Language: Английский

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Quantification of Bioaccessible and Environmentally Relevant Trace Metals in Structure Ash from a Wildland–Urban Interface Fire

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(5), P. 2502 - 2513

Published: Jan. 26, 2024

Wildfires at the wildland–urban interface (WUI) are increasing in frequency and intensity, driven by climate change anthropogenic ignitions. Few studies have characterized variability metal content ash generated from burned structures order to determine potential risk human environmental health. Using inductively coupled plasma optical emission spectroscopy (ICP-OES) mass spectrometry (ICP-MS), we analyzed leachable trace concentration soils Marshall Fire, a WUI fire that destroyed over 1000 Boulder County, Colorado. Acid digestion revealed derived contained 22 times more Cu 3 Pb on average than surrounding mg/kg basis. Ash liberated 12 Ni (mg/kg) twice as much Cr water leach. By comparing amount of acid-extractable metals released simulated epithelial lung fluid (SELF), estimated their for mobility bioaccessibility. The SELF leach showed were bioaccessible (mg metal/mg metal) soils. These results suggest structure is an important source can negatively impact health both humans environment.

Language: Английский

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Multi-Omics Assessment of Puff Volume-Mediated Salivary Biomarkers of Metal Exposure and Oxidative Injury Associated with Electronic Nicotine Delivery Systems

Environmental Health Perspectives, Journal Year: 2025, Volume and Issue: 133(1)

Published: Jan. 1, 2025

Since their inception, electronic nicotine delivery systems (ENDS) have gained increasing popularity, sparking a vaping epidemic among adolescents in the US and globally. Several ENDS safety concerns emerged as device features formats that contribute to heavy metal exposure toxicity continue evolve outpace regulatory efforts. Our objective was integrate emission profiles with salivary proteome metabolome data characterize factors may influence adverse vaping-mediated health outcomes. A total of 56 participants (38 exclusive users 18 non-ENDS users) were recruited. subset 15 completed puffing topography assessments obtain individual behavior patterns using each participant's device. Inductively coupled plasma mass spectrometry used determine content emissions (12 devices) generated programmable aerosol generation system saliva (15 5 users). Saliva samples from 10 analyzed for proteomic, metabolomic, inflammatory, oxidative stress/damage biomarkers. linear puff volume-dependent increase particle metals observed aerosols users. Elevated levels cytokines, including tumor necrosis factor-alpha (TNFα), interleukin-1 beta (IL-1β), IL-6, alongside damage indicators malondialdehyde (MDA), superoxide dismutase (SOD), 8-hydroxy-2'-deoxyguanosine (8-OHdG). Proteome-metabolome network analysis showed higher risk potentially developing neurological respiratory diseases compared Integrated proteome-metabolome-metallome further demonstrated associated proteomic metabolomic perturbations, notable alterations inflammatory response, immune function, disease-related pathways. significant correlation between metals, stress markers reveals potential role changes DNA inflammation. study demonstrates importance characterizing when examining human implications use. https://doi.org/10.1289/EHP14321.

Language: Английский

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Determination of mercury, cadmium, and nickel in henna samples

Environmental Monitoring and Assessment, Journal Year: 2025, Volume and Issue: 197(3)

Published: Feb. 5, 2025

Language: Английский

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