Persistent organic pollutants: The trade-off between potential risks and sustainable remediation methods

Journal of Environmental Management, Journal Year: 2021, Volume and Issue: 300, P. 113737 - 113737

Published: Sept. 15, 2021

Language: Английский

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Analyses of per- and polyfluoroalkyl substances (PFAS) through the urban water cycle: Toward achieving an integrated analytical workflow across aqueous, solid, and gaseous matrices in water and wastewater treatment

The Science of The Total Environment, Journal Year: 2021, Volume and Issue: 774, P. 145257 - 145257

Published: Jan. 22, 2021

Our knowledge of PFAS fate and transport in the urban water cycle between treatment plants (WTPs) wastewater (WWTPs) is dependent upon analytical methodology. To conduct a mass balance through these engineered systems, environmental chemistry must be leveraged to quantify various media that facilities. Although balances have been attempted across unit processes for small selection WTPs WWTPs, system-wide are daunting challenge not achieved date. The continued existence legacy constantly moving target newly emerging commercial transformation products (TPs), addition complications resulting from bias-free collection uncontaminated samples parts-per-trillion (ppt) range, complicate balance. Further compounding diverse universe which consists polar/nonpolar, nonvolatile/semi-volatile/volatile, neutral/anionic/cationic/zwitterionic chemicals. physicochemical properties chemicals, they exist, drive appropriate procedures provide accurate precise quantification compounds. current state science development methods specific subgroups families limited matrices. Here, approaches integrate workflows types proposed. In this evaluation, multi-platform targeted, suspect/non-targeted, surrogate screening combining promulgated standardized presented. Synthesis comprehensive workflow aspires achieve gaseous, solid, aqueous matrices encountered WWTPs Finally, research data gaps future needs also discussed.

Language: Английский

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Recent advances in mass spectrometry analytical techniques for per- and polyfluoroalkyl substances (PFAS)

Analytical and Bioanalytical Chemistry, Journal Year: 2022, Volume and Issue: 414(9), P. 2795 - 2807

Published: Feb. 7, 2022

Language: Английский

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A reconnaissance study of pharmaceuticals, pesticides, perfluoroalkyl substances and organophosphorus flame retardants in the aquatic environment, wild plants and vegetables of two Saudi Arabia urban areas: Environmental and human health risk assessment

The Science of The Total Environment, Journal Year: 2021, Volume and Issue: 776, P. 145843 - 145843

Published: Feb. 16, 2021

In this study, the occurrence of 12 organophosphorus flame retardants (OPFRs), 64 pesticides, 21 perfluoroalkyl substances (PFASs) and 34 pharmaceuticals personal care products (PPCPs) in surface water, sediments vegetation collected from seven locations along South Riyadh six Al-Jubail industrial city (Saudi Arabia) were reported. The median concentrations ƩOPFRs, ƩPesticides, ƩPFASs ƩPPCPs water was 297, 231, 29.7 3794 ng L−1, respectively, 56.2, 40.4, 5.66 419 g−1 d.w., crops for human consumption 45.6, 42.0, 0.46 42.0 g−1, farm 13.4, 57.5, 3.2 637 natural 51.7, 10.3, 1.88 1580 g−1. Predominant compounds all matrices tris-(1,3-dichloro-2-propyl)phosphate (TClPP), acetamiprid, imidacloprid, caffeine, bisphenol A (BPA), diclofenac ibuprofen. Tris(2-butoxyethyl) phosphate (TBEP), tris-(2-ethylhexyl)phosphate (TPhP), perfluoroctanoic acid (PFOA), sulfonate (PFOS) paracetamol also many samples but at low concentrations. contaminants' levels showed similar values both cities. However, pesticide significantly higher (p < 0.05) lower than those Al-Jubail. risk assessment aquatic biota that abamectin, diazinon (pesticides), caffeine had highest levels. cumulative contaminant mixture is concern. As far as to health concerned, individual contaminants did not show a significant hazard population. OPFRs requires closed monitoring since % admissible daily intakes (ADIs) or reference doses (RfD) are high. This one most comprehensive study covering environmental emerging carried out Saudi Arabia.

Language: Английский

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Multi-functional metal–organic frameworks for detection and removal of water pollutions

Chemical Communications, Journal Year: 2022, Volume and Issue: 58(57), P. 7890 - 7908

Published: Jan. 1, 2022

This feature article reviews the recent achievements in metal–organic frameworks (MOFs) as versatile advanced materials for multifunctional water treatment and prospects current challenges future research trends.

Language: Английский

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