Pollution trends and ecological risks of heavy metal(loid)s in coastal zones of Bangladesh: A chemometric review

Marine Pollution Bulletin, Journal Year: 2023, Volume and Issue: 191, P. 114960 - 114960

Published: April 27, 2023

Language: Английский

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Microplastics and heavy metals in freshwater fish species in the southwestern region of Bangladesh: An emerging concern for public health

Emerging contaminants, Journal Year: 2024, Volume and Issue: 10(3), P. 100325 - 100325

Published: Feb. 27, 2024

Microplastics (MPs) pollution and its associated toxicity raising concerns among scientists as a result of their toxicological impacts on human health the ecosystem. This study aims to investigate microplastics heavy metals (HMs) contamination in seventeen freshwater fish species collected from Southwestern region Bangladesh. extracted these using hydrogen peroxide digestion method characterized by Attenuated Total Reflection- Fourier Transform Infrared Spectroscopy (ATR-FTIR). Atomic Absorption (AAS) was used determine concentration HMs different for evaluating risks. A total 142 microplastic particles were with an average 1.13 ± 0.84 items per individual fish, where highest found C. punctata (3.43 3.15 items) lowest A. mola (0.14 0.38 items). Identified dominated < 1 mm size (87.3%), black color (60.6%), fiber shape (94.4%). Polyethylene (73.08%), polypropylene (21.15%), polystyrene (5.77%) most prevalent identified polymers. positive correlation between numbers weight length. Low moderate risks microplastics. The (mg/kg) studied samples Cr (0.47–2.89; 0.79 0.56) > Cu (0.01–1.14; 0.50 0.44) Pb (0.04–0.58; 0.22 0.12) Cd (0.00–0.11; 0.03 0.03), respectively. Heavy metals-based risk assessment results show that there are no major non-carcinogenic (THI<1), while higher carcinogenic present consumers.

Language: Английский

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Combined pollution of heavy metals and polycyclic aromatic hydrocarbons in non-ferrous metal smelting wastewater treatment plant: Distribution profiles, removal efficiency, and ecological risks to receiving river

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 486, P. 137118 - 137118

Published: Jan. 5, 2025

Language: Английский

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Tracing microplastics in marine fish: Ecological threats and human exposure in the Bay of Bengal

The Science of The Total Environment, Journal Year: 2025, Volume and Issue: 963, P. 178462 - 178462

Published: Jan. 20, 2025

Language: Английский

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Accumulation of microplastics in various organs of fiddler crabs and sea cucumbers across the coastal habitats in Singapore

Environmental Pollution, Journal Year: 2025, Volume and Issue: unknown, P. 125773 - 125773

Published: Jan. 1, 2025

Language: Английский

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Managing the invisible threat of microplastics in marine ecosystems: Lessons from coast of the Bay of Bengal

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 889, P. 164224 - 164224

Published: May 19, 2023

Language: Английский

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Distribution of microplastics in shoreline water and sediment of the Ganges River Basin to Meghna Estuary in Bangladesh

Ecotoxicology and Environmental Safety, Journal Year: 2023, Volume and Issue: 266, P. 115537 - 115537

Published: Oct. 6, 2023

This study focused on the distribution of microplastics in water and sediment Ganges River Basin to Meghna Estuary Bangladesh. Thirty points were sampled from Chapainawabganj district (India-Bangladesh border) Chandpur (Meghna Estuary). The morphological appearances recognized by stereomicroscope SEM-EDX analysis. Potential ecological risks also measured. average microplastic concentration upstream downstream was 50.9 ± 24.4 particles/L 64.1 26.3 particles/L, respectively, 2953.49 1670.52 particles/kg 4014.66 1717.59 sediment. In water, most dominant appearance fragment shape, blue colour 1-2 mm size. fragments red 0.1-0.5 sediment, < 0.1 fibre Seven polymer types discovered dominated low-density polyethylene (LDPE), eight polyamide (PA). correlation between size shape particles analyzed using principal component overall pollution load index 1.86, higher than other studies done Surprisingly, nemerow (NPI), contamination factor (CF), (PLI), hazard (PHI), potential risk (Ei)- all five indicators had low very high due exposure. data produced through this will drive increasing awareness regarding vast river ecosystem. Given widespread presence pollution, it highlights necessity for continuous national monitoring microplastics.

Language: Английский

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Microplastic contamination in water and sediments of Mahanadi River, India: An assessment of ecological risk along rural-urban area

Journal of Environmental Management, Journal Year: 2023, Volume and Issue: 348, P. 119363 - 119363

Published: Nov. 6, 2023

Language: Английский

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A critical review of the novel analytical methods for the determination of microplastics in sand and sediment samples

TrAC Trends in Analytical Chemistry, Journal Year: 2023, Volume and Issue: 166, P. 117190 - 117190

Published: July 17, 2023

Microplastics (MPs) form the most investigated plastic category since their size (1 μm- 5 mm) enables them to accumulate in various environmental compartments and be ingested by biota. Beach sand sediment can indicators of MP contamination levels coastal marine ecosystem and, thus, they are widely analyzed. With increasing number publications recent years, there is a need for constant updates on variety extraction analysis procedures developed. Thus, this review aims evaluate sample preparation techniques MPs provide critical discussion determination based studies published last years. We also report conditions imposed identification quantification isolation as well materials used procedures. Finally, we address expectations new challenges related instrumental innovations.

Language: Английский

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Occurrence of microplastic pollution in rivers globally: Driving factors of distribution and ecological risk assessment

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 904, P. 165979 - 165979

Published: Aug. 3, 2023

Language: Английский

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