Novel ultrasound assisted extraction and d-SPE clean-up for the analysis of multiple legacy and emerging organic contaminants in edible fish

Food Chemistry, Journal Year: 2024, Volume and Issue: 443, P. 138582 - 138582

Published: Jan. 29, 2024

Polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs), novel brominated flame retardants (NBFRs), phthalate esters (PAEs) are pervasive environmental pollutants, posing threats to both ecosystems and human health. Although several analytical methods were developed for these compounds, they not performed simultaneously. This study addresses the need a sustainable, novel, approach capable of simultaneously determining diverse chemical classes in edible fish muscles. Employing ultrasound extraction coupled with dispersive solid-phase (d-SPE) as cleanup procedure, method was compared conventional techniques, revealing significant improvements. Analytical parameters thoroughly assessed, innovative demonstrated notable advantages, reducing purification times by approximately 74–80 % solvent consumption around 94–97 %. Applied Mediterranean Sea samples, results underscore method's potential viable, sustainable alternative traditional approaches, promising enhanced efficiency reduced impact.

Language: Английский

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Photocatalytic Degradation of Paracetamol under Simulated Sunlight by Four TiO2 Commercial Powders: An Insight into the Performance of Two Sub-Micrometric Anatase and Rutile Powders and a Nanometric Brookite Powder

Catalysts, Journal Year: 2023, Volume and Issue: 13(2), P. 434 - 434

Published: Feb. 17, 2023

The photocatalytic degradation of the emerging contaminant paracetamol in aqueous solution has been studied under 1 SUN (~1000 W m−2) presence four commercial TiO2 powders, namely sub-micrometric anatase and rutile, nanometric brookite P25 (the popular anatase/rutile mixture used as a benchmark most papers). rutile powder showed low activity, whereas, interestingly, powders outperformed terms total conversion to carboxylic acids, which, according literature, are final products its degradation. To explain such results, physicochemical properties were by applying multi-technique approach. Among usually affecting performance TiO2, some surface impurities likely deriving from K3PO4 (used crystallization agent) was found significantly affect percentage obtained with powder. confirm role phosphate, sample anatase, lab synthesis procedure having “clean” surface, control, though characterized particles higher area. less active than but it more after impregnation K3PO4. Conversely, Cl at did not sizably (overall poor) activity remarkable ascribed combination several properties, including band structure nanoparticles size.

Language: Английский

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Occurrence, transport, and detection techniques of emerging pollutants in groundwater

MethodsX, Journal Year: 2023, Volume and Issue: 10, P. 102160 - 102160

Published: Jan. 1, 2023

Language: Английский

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Recent advances in carbon-based nanomaterials for the treatment of toxic inorganic pollutants in wastewater

New Journal of Chemistry, Journal Year: 2023, Volume and Issue: 47(16), P. 7655 - 7667

Published: Jan. 1, 2023

Wastewater contains inorganic pollutants, generated by industrial and domestic sources, such as heavy metals, antibiotics, chemical pesticides, these pollutants cause many environmental problems.

Language: Английский

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Levels of persistent organic pollutants (POPs) in the Antarctic atmosphere over time (1980 to 2021) and estimation of their atmospheric half-lives

Atmospheric chemistry and physics, Journal Year: 2023, Volume and Issue: 23(14), P. 8103 - 8118

Published: July 19, 2023

Abstract. Persistent organic pollutants (POPs) are synthetic compounds that were intentionally produced in large quantities and have been distributed the global environment, originating a threat due to their persistence, bioaccumulative potential, toxicity. POPs reach Antarctic continent through long-range atmospheric transport (LRAT). In these areas, low temperatures play significant role environmental fate of POPs, retaining them for long time cold trapping by diffusion wet deposition, acting as net sink many POPs. However, current context climate change, remobilization trapped water, ice, soil decades is happening. Therefore, continuous monitoring polar air necessary assess whether there recent re-release historical back environment. We reviewed scientific literature on levels several POP families (polychlorinated biphenyls – PCBs, hexachlorobenzene HCB, hexachlorocyclohexanes HCHs, dichlorodiphenyltrichloroethane DDT) from 1980 2021. estimated half-life using characteristic decreasing times (TD). observed HCB atmosphere higher than other target organochlorine pesticides (OCPs), but also displayed fluctuations did not show decrease over time. Conversely, some DDTs, PCBs decreased significantly. The half-lives following order: 4,4' DDE (13.5 years) > DDD (12.8 DDT (7.4 2,4' (6.4 (6.3 α-HCH (6 γ-HCH (4.2 years). For PCB congeners, they 153 (7.6 138 (6.5 101 (4.7 180 (4.6 28 (4 52 (3.7 118 (3.6 HCH isomers Stockholm Convention (SC) ban an impact during last decades. Nevertheless, ubiquity shows problematic issues related highly persistent chemicals.

Language: Английский

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Large scale screening and quantification of micropollutants in fish from the coastal waters of Cochin, India: Analytical method development and health risk assessment

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 954, P. 176515 - 176515

Published: Sept. 30, 2024

Language: Английский

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Investigating Contaminants of Emerging Concern (CECs) in the Venice Lagoon: A Suspect Screening Approach for the Analysis of Water and Sediment Quality

Published: Jan. 1, 2025

Language: Английский

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Emerging and Persistent Contaminants in a Remote Coastal Stream System: Five Priority Compounds in Southeast Asia

Sustainability, Journal Year: 2025, Volume and Issue: 17(2), P. 581 - 581

Published: Jan. 14, 2025

This study is a preliminary assessment of the emerging and persistent contaminants (EPCs) in ecologically sensitive Kamphuan Stream Southern Thailand. The analysis 15 compounds revealed that EPC concentrations below main community were significantly elevated during rainy season, with highest levels found for sucralose (9070 ng/L), metformin (6250 fexofenadine (5110 gabapentin (3060 ng/L). These spatiotemporal patterns highlight episodic nature contamination driven by urban stormwater runoff, where rainfall events create temporary pathways transport EPCs to streams draining into coastal ecosystems. Maximum three pharmaceuticals (diclofenac, gemfibrozil, ibuprofen), as well sucralose, caffeine, fenobucarb, exceeded general predicted no-effect (PNECs) marine or fresh waters; however, these not persistent. Limited sampling across campaigns constrained ability fully characterize dynamics this issue through statistical inference. Furthermore, risk assessments absence locally derived PNECs tropical ecosystems organisms, along limited standardization PNEC determination methodologies, making definitive conclusions challenging. A comparative five priority metformin, naproxen, fluoxetine) against existing data from East Southeast Asia underscores need further research evaluate ecological risks posed diverse rivers streams. Future studies should focus on greatest importance, investigate their transformation products, identify sources pathways, assess environmental aquatic

Language: Английский

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An optimal QuEChERS method for the determination of Emerging Contaminants by LC-MS/MS in the Antarctic bivalve Adamussium colbecki

Environmental Pollution, Journal Year: 2025, Volume and Issue: unknown, P. 126415 - 126415

Published: May 1, 2025

Language: Английский

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Levels of persistent organic pollutants (POPs) in the Antarctic atmosphere over time (1980 to 2021) and estimation of their atmospheric half-lives.

Published: Feb. 2, 2023

Abstract. Persistent organic pollutants (POPs) are synthetic compounds that were intentionally produced in large quantities and have been distributed the global environment, originating a threat due to their persistence, bioaccumulative potential toxicity. POPs reach Antarctic continent through long-range atmospheric transport. In these areas low temperatures play significant role environmental fate of POPs, retaining them for long-time cold trapping by diffusion wet deposition, acting as net sink many POPs. However, current context climate change, remobilization trapped decades water, ice, soil, is happening. Therefore, continuous monitoring polar air necessary assess whether there recent re-release historical back environment. We reviewed scientific literature on levels several families (polychlorinated biphenyls PCBs, hexachlorobenzene HCB, hexachlorocyclohexanes HCHs, DDT) from 1988 2021. estimated half-life using characteristic decreasing times (TD). observed HCB atmosphere higher than other target OCs, but also displayed fluctuations did not show decrease over time. Conversely, some,DDTs, PCBs decreased significantly. The half-lives following order: 4,4’ DDE (13.5 years) > DDD (12.8 DDT (7.4 2,4’ (6.4 (6.3 α-HCH (6 γ-HCH (4.2 years), while PCB congeners they 153 (7.6 138 (6.5 101 (4.7 180 (4.6 28 (4 52 (3.7 118 (3.6 years). For HCH isomers Stockholm Convention ban an impact during last decades. Nevertheless, ubiquity shows problematic issues related highly persistent chemicals.

Language: Английский

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