Mitigating oil and gas pollutants for a sustainable environment – Critical review and prospects

Journal of Cleaner Production, Journal Year: 2023, Volume and Issue: 416, P. 137863 - 137863

Published: June 24, 2023

Language: Английский

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Evaluation of the cancer risk from PAHs by inhalation: Are current methods fit for purpose?

Environment International, Journal Year: 2023, Volume and Issue: 177, P. 107991 - 107991

Published: May 23, 2023

There is ample evidence from occupational studies that exposure to a mixture of Polycyclic Aromatic Hydrocarbons (PAHs) causally associated with an increased incidence lung cancers. In both atmospheres and ambient air, PAHs are present as many compounds, but the composition in air differs atmosphere, varies time space air. Estimates cancer risk for PAH mixtures based upon unit risks which derive extrapolation data or animal model data, case WHO use one compound, benzo[a]pyrene marker entire mixture, irrespective composition. The U.S. EPA has used study inhalation alone, there have been number rankings relative carcinogenic potency other calculate frequently incorrectly by adding estimated individual applying total "B[a]P equivalent" risk, already applies mixture. Such often solely historic US group 16 compounds do not include apparently more potent carcinogens. no human PAHs, conflicting additivity carcinogenicity mixtures. This paper finds large divergences between estimates deriving methods, well considerable sensitivity composition, assumed potencies. Of two approach appears likely provide reliable estimates, recently proposed mixture-based approaches using vitro toxicity may offer some advantages.

Language: Английский

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Molecularly Imprinted Plasmonic-Based Sensors for Environmental Contaminants—Current State and Future Perspectives

Chemosensors, Journal Year: 2023, Volume and Issue: 11(1), P. 35 - 35

Published: Jan. 2, 2023

The increase of production and consumption persistently introduce different pollutants into the environment. constant development improvement analytical methods for tracking environmental contaminants are essential. demand high sample throughput analysis has hit spotlight developing selective sensors to avoid time-consuming preparation techniques. In addition, sensor’s sensitivity should satisfy rigorous demands harmful compound tracking. Molecularly imprinted plasmonic-based excellent candidates overcome selectivity issues. polymers robust, stable in aqueous organic solvents, at extreme pHs temperatures, include a low-cost synthesis procedure. Combined with techniques, they perspective choice applications field protection. Plasmonic-based offer lower limit detection, broad linearity range, sensitivity, compared other detection This review outlines optical plasmonic molecularly as sensing elements. main focus is on affecting human animal health, such pesticides, pharmaceuticals, hormones, microorganisms, polycyclic aromatic hydrocarbons, dyes, metal particles. Although currently have their application mostly biomedical field, we eager point them out highly prospective solution many problems.

Language: Английский

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An integrated approach to the sustainable development and production of biofuel from biopolymers and algal biomass derived from wastewater

Fuel, Journal Year: 2023, Volume and Issue: 349, P. 128691 - 128691

Published: May 24, 2023

Language: Английский

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Polycyclic Aromatic Hydrocarbon Occurrence and Formation in Processed Meat, Edible Oils, and Cereal-Derived Products: A Review

Applied Sciences, Journal Year: 2023, Volume and Issue: 13(13), P. 7877 - 7877

Published: July 5, 2023

The chemical group comprising polycyclic aromatic hydrocarbons (PAHs) has received prolonged evaluation and scrutiny in the past several decades. PAHs are ubiquitous carcinogenic pollutants pose a significant threat to human health through their environmental prevalence distribution. Regardless of origin, natural or anthropogenic, generally stem from incomplete combustion organic materials. Dietary intake, one main routes exposure PAHs, is modulated by pre-existing food contamination (air, water, soil) formation accumulation during processing. To this end, processing techniques cooking options entailing thermal treatment carry additional weight determining PAH levels final product. With background provided, study aims provide an improved understanding occurrence meat, edible oils, cereal products. factors influencing formation, including operational conditions parameters, product composition, storage settings, described. discussion also addresses reduction directions with respect informing choice employed technique, fuel type, time–temperature ingredient variations. Considering disparities caused wide variations contamination, challenges associated control requirements outlined context relevant preventive approaches

Language: Английский

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Long-term physical and chemical aging of biochar affected the amount and bioavailability of PAHs and their derivatives

Journal of Hazardous Materials, Journal Year: 2022, Volume and Issue: 440, P. 129795 - 129795

Published: Aug. 18, 2022

Biochar applied into the soil is recommended as an effective tool for increasing its properties and crop productivity. However, biochar can contain some potentially toxic compounds such polycyclic aromatic hydrocarbons (PAHs). Moreover, during production or environmental application (e.g. fertilizer), more PAHs derivatives containing nitrogen, oxygen sulfur be formed. There a lack of information on how factors affect bioavailability long-term BC soil. In presented studies effects physical (freeze-thaw cycles) chemical aging (temperatures 60 °C 90 °C) total bioavailable content their were estimated. The results indicate that (6 months) affected physicochemical characteristic biochars promoting formation new C O-containing species surface polarity hydrophilicity. Physical promoted with higher molecular weight significant (up to 550 %) increase in derivatives. this study highlight importance fraction evaluation toxicity aged biochar.

Language: Английский

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Sampling, pretreatment, instrumental analysis, and observed concentrations of polycyclic aromatic hydrocarbons, polychlorinated naphthalenes, and halogenated polycyclic aromatic hydrocarbons: A review

TrAC Trends in Analytical Chemistry, Journal Year: 2023, Volume and Issue: 169, P. 117384 - 117384

Published: Oct. 20, 2023

Language: Английский

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Metabolomics perspectives of the ecotoxicological risks of polycyclic aromatic hydrocarbons: A scoping review

Environmental Research, Journal Year: 2024, Volume and Issue: 249, P. 118394 - 118394

Published: Feb. 1, 2024

Polycyclic Aromatic Hydrocarbons (PAHs) represent persistent environmental pollutants ubiquitously distributed in the environment. Their presence alongside various other contaminants gives rise to intricate interactions, culminating profound deleterious consequences. The combination effects of different PAH mixtures on biota remains a relatively unexplored domain. Recent studies have harnessed exceptional sensitivity metabolomic techniques unveil significant ecotoxicological perils pollution confronting both human populations and ecosystems. This article furnishes comprehensive overview current literature focused metabolic repercussions stemming from exposure complex PAHs or PAH-pollution sources using metabolomics approaches. These insights are obtained through wide range models, including vitro assessments, animal studies, investigations subjects, botanical specimens, soil environments. findings underscore that induce cellular stress responses systemic effects, leading dysregulations amino acids, carbohydrates, lipids, key metabolites (e.g., organic purines), with specific variations observed based organism compounds involved. Additionally, ecological consequences plant microbial emphasized, revealing changes stress-related nutrient cycling interplay their several as elucidated metabolomics, highlight urgency further research need for strategies mitigate risks posed by these widespread pollutants.

Language: Английский

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PM2.5-bound polycyclic aromatic hydrocarbons (PAHs): quantification and source prediction studies in the ambient air of automobile workshop using the molecular diagnostic ratio

Asian Journal of Atmospheric Environment, Journal Year: 2024, Volume and Issue: 18(1)

Published: Feb. 20, 2024

Abstract The presence of polycyclic aromatic hydrocarbons (PAHs) in the atmosphere has been linked to health concerns, including cancer. Automobile workshops are significant contributors PAH emissions due their operations. Hence, this investigation aimed identify and quantify sources PM2.5-bound PAHs ambient air automobile Benin City, Nigeria, using molecular diagnostic ratios. PM2.5 samples were collected from 60 automobiles over 1 year, during rainy (April November) dry (December March) seasons 2019. Sample collection utilized a low-volume sampler with quartz filter paper, extraction was performed 1:1 mixture acetone dichloromethane. analysis involved an HP Agilent Technology 6890 Gas Chromatography (GC) system flame ionization detector. annual average concentrations City 269.87 ± 249.32 ng/m 3 (dry season) 216.30 204.89 (wet season). Molecular ratios, such as Fl/(Fl + Py), An/(An Phe), BaP/(BaP Chry), BbF/BkF, InP/(InP BghiP), BaA/(BaA Chr), aided identifying sources. Gasoline combustion, diesel traffic emissions, panel welders found be primary near vehicle workshops. These findings provide crucial insights for developing effective strategies reduce protect public surrounding City.

Language: Английский

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Tracking the history of polycyclic aromatic compounds in London through a River Thames sediment core and ultrahigh resolution mass spectrometry

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 473, P. 134605 - 134605

Published: May 14, 2024

Polycyclic aromatic compounds (PACs), including polycyclic hydrocarbons (PAHs) and heteroatom-containing analogues, constitute an important environmental contaminant class. For decades, limited numbers of priority PAHs have been routinely targeted in pollution investigations, however, there is growing awareness for the potential occurrence thousands PACs environment. In this study, untargeted Fourier transform ion cyclotron resonance mass spectrometry was used molecular characterisation a sediment core from Chiswick Ait, River Thames, London, UK. Using complex mixture analysis approaches, aromaticity index calculations, number PAC components determined eight depths, extending back to 1930s. A maximum 1676 compositions representing detected at depth corresponding 1950s, decline observed up core. case linking London's coal consumption history presented, alongside other possible sources, with some data features indicating pyrogenic origins. The overall profile trend components, oxygen, sulfur, nitrogen, chlorine atoms, shown broadly correspond 16 PAH concentration previously These findings implications industry-impacted environments.

Language: Английский

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