Investigation of microplastic pollution index in the urban surface water: A case study in west Godavari district, Andhra Pradesh, India

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 374, P. 124098 - 124098

Published: Jan. 11, 2025

Language: Английский

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Plastic and Micro/Nanoplastic Pollution in Sub-Saharan Africa: Challenges, Impacts, and Solutions

World, Journal Year: 2024, Volume and Issue: 5(2), P. 325 - 345

Published: May 15, 2024

Sub-Saharan Africa faces increasing levels of plastic production and importation, unregulated usage, inadequate waste management systems. This region’s harsh conditions often lead to breaking down into microplastics nanoplastics. review explores the abundance micro/nanoplastics across different environmental mediums, such as surface waters, sediments, aquatic organisms, in sub-Saharan African countries. It also highlights knowledge gaps concerning micro/nanoplastics. The effects plastics on food production, water quality, health, environment are discussed. Strategies address challenges pollution proposed. Finally, concludes with future perspectives for addressing ongoing Africa. materials this study were sourced from published articles Scopus, Google Scholar, ResearchGate, additional platforms, including reports various press releases, using keywords waste, micro/nano-plastic, Africa, toxicity, circular economy. Articles initially screened by reviewing abstracts, followed a thorough reading full papers identify relevant studies. Key information was extracted these selected incorporated review.

Language: Английский

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Mechanism Insights Into High‐Performance Cu²⁺ Adsorption by ZIF‐8/PAN Nanocomposite Fibers: Coordination and Ion Exchange Dynamics

Polymers for Advanced Technologies, Journal Year: 2025, Volume and Issue: 36(1)

Published: Jan. 1, 2025

ABSTRACT The accumulation of copper ions in the environment can devastate ecological systems and threaten health organisms. Consequently, development effective adsorbents to extract Cu 2+ from aqueous solutions is urgently needed. Here, Zeolitic Imidazolate Framework‐8 (ZIF‐8)/polyacrylonitrile (PAN) nanocomposite fibers were synthesized by electrospinning further characterized using X‐ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR). ZIF‐8 powders uniformly distributed on surface fibers, amide CONH bonds formed between NH 2 groups CO PAN. ZIF‐8/PAN demonstrated an exceptional adsorption capacity 275.7 mg g −1 at pH = 4.0. process adhered pseudo‐second‐order kinetics Langmuir isotherm model. mechanism, as conformed FTIR photoelectron (XPS) analysis, involves coordination with ion exchange processes Zn for fibers. This study provides a novel approach removal addresses challenge recovering powder materials wastewater treatment.

Language: Английский

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Study on the Mass Concentration Distributions of Marine Microplastics in Estuaries and Coastal Areas

Water, Journal Year: 2025, Volume and Issue: 17(8), P. 1136 - 1136

Published: April 10, 2025

Marine microplastics are a global environmental issue, and understanding their distributions in estuaries coastal areas is critical prerequisite for the effective sustainable management of microplastic pollution. Owing to lack methods that exist quantifying content, characterizing distribution difficult. The mass concentration an objective indicator reflects distribution. Therefore, formula calculating proposed through parameters number concentration, size, mesh addition proportions particles with different sizes shapes. On basis large amount existing measured data, concentrations calculated. It can be concluded polypropylene (PP; 72%) polyethylene (PE; 67%) most abundant ocean. Additionally, marine more common (102–103 mg/L) than open sea (0–10 mg/L). maximum surface water approximately 8.0 g/L. Moreover, pollution has significantly increased surrounding sewage treatment plants aquaculture farms.

Language: Английский

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Microplastic Contamination in Sediments: Analytical Techniques and Case-Based Evaluations

Talanta, Journal Year: 2025, Volume and Issue: 294, P. 128267 - 128267

Published: May 3, 2025

Language: Английский

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Synergism in the electrocatalytic properties of cobalt phthalocyanine-carbon nanotube-polymeric electrospun nanofibers immobilized on a gold electrode for the detection of lead(II) ions

Materials Chemistry and Physics, Journal Year: 2024, Volume and Issue: 325, P. 129730 - 129730

Published: Aug. 2, 2024

Core-shelled electrospun nanofibers (ENFs) comprising of a polyvinyl acetate (PVA) shell encapsulating composite polyaniline (PANI), tetra-4-(3-oxyflavonephthalocyaninato)cobalt(II) (CoPc-flav), carboxylic acid functionalized multiwalled carbon nanotubes (f-MWCNTs) and an annealed conductive top layer Nafion (Nf) were used to fabricated chemically modified gold electrode (Au|ENFs-1-Nf) via the adsorption method. The electrocatalytic sensing capabilities Au|ENFs-1-Nf towards Pb(II) ions evaluated. In comparison bare other electrodes (CMEs), was less prone fouling showing more stable analyte signal compromised background electrolyte currents. could detect cations in reproducible manner ranging from 8 125 μM where limits detection quantification 0.51 1.55 obtained, respectively. analytical performance aforementioned CME rendered comparable percentage recovery (103 %) with that Inductively coupled plasma-optical emission spectroscopy (ICP-OES) (115 %).

Language: Английский

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Bioaccumulation and Biochemical Impact of Polyethylene Terephthalate Microplastics in Cipangopaludina chinensis: Tissue-Specific Analysis and Homeostasis Disruption

Aquatic Toxicology, Journal Year: 2024, Volume and Issue: 277, P. 107144 - 107144

Published: Nov. 2, 2024

Language: Английский

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Occurrence, detection and ecotoxicity of microplastics in selected environments-a systematic appraisal

Heliyon, Journal Year: 2024, Volume and Issue: 10(14), P. e32095 - e32095

Published: July 1, 2024

Microplastics (MPs) are being released into the environment in large quantities, especially less developed parts of world. This group pollutants is mostly leached through heavy plastic dumpsites, pharmaceutical and personal care product containers, hospital wastes, package accessories, litter from food packaging. Consequently, these compounds found different compartments ecosystem, such as soils, sediments, biota, and, surprisingly, drinking water. The present study systematically appraised recent studies on MP pollution Asian African environments. It also summarized trends methods for environmental monitoring MPs removal strategies that have been employed. From data gathered, two key instrumentations involved microscopes visualization Fourier transform-infra-red (FT-IR) spectrometer to classify or characterize MPs. Based surveyed works literature, China South Africa relatively more information contamination diverse matrices within their countries. Meanwhile, status should be conducted across all Hence, this becomes an eye-opener regarding commencement research environment, other countries with little no information. Furthermore, literature ecotoxicity was investigated ascertain toxic nature compounds. aspect vital because it serves a prerequisite remediation declared lethal biotic components, so hands must deck continuously remove them environment.

Language: Английский

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Challenges of Microplastic Research in Asia and Africa

Emerging contaminants and associated treatment technologies, Journal Year: 2024, Volume and Issue: unknown, P. 73 - 88

Published: Jan. 1, 2024

Language: Английский

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Potential ecological risk assessment of microplastics in environmental compartments in Mexico: A meta-analysis

Environmental Pollution, Journal Year: 2024, Volume and Issue: 361, P. 124812 - 124812

Published: Aug. 24, 2024

Language: Английский

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