A data-independent acquisition approach based on HRMS to explore the biodegradation process of organic micropollutants involved in a biological ion-exchange drinking water filter

Solliec, Morgan; Roy-Lachapelle, Audrey; Storck, Véronika; Callender, Katrina; Greer, Charles W.; Barbeau, Benoît

doi:10.1016/j.chemosphere.2021.130216

Cited by 14 publications

(8 citation statements)

References 47 publications

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“…In previous studies, the transformation and transport of particle bound organic pollutants in aerosols were found to be affected by RH significantly. − Moreover, the increasing RH can increase the degradation rate of traditional OPEs on ammonium sulfate particles by 19%, , which is similar to the RH-induced enhancing ratio for OPAs found in this study (10–19%). The increase in RH changes the physical diffusion degree of • OH by reducing the viscosity between particles, thus improving the reaction rate of • OH and organic pollutants. , Generally, in this study, the heterogeneous phototransformation process of OPAs and NOPEs on dust was revealed for the first time.…”

Section: Resultsmentioning

confidence: 53%

“…The increase in RH changes the physical diffusion degree of • OH by reducing the viscosity between particles, thus improving the reaction rate of • OH and organic pollutants. 27,30 Generally, in this study, the heterogeneous phototransformation process of OPAs and NOPEs on dust was revealed for the first time.…”

Section: Spatial Distribution Of Opas and Nopes And Influencing Factorsmentioning

confidence: 64%

“…Recently, nontargeted analysis based on high-resolution mass spectrometry allows the comprehensive identification of unknown OPEs and transformation products in dust, sediment, and water. − Therefore, to identify comprehensively the unknown phototransformation pathways of OPAs and NOPEs on dust and reveal the possible risk associated with newly identified products, a nontargeted strategy for screening these chemicals must be conducted.…”

Section: Introductionmentioning

confidence: 99%

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Organophosphite Antioxidants and Novel Organophosphate Esters in Dust from China: Large-Scale Distribution and Heterogeneous Phototransformation

Zhang

Wei

Gao

et al. 2023

Environ. Sci. Technol.

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A large-scale survey was conducted by measuring five organophosphite antioxidants (OPAs) and three novel organophosphate esters (NOPEs) in 139 dust samples across China. The median summed concentrations of OPAs and NOPEs in outdoor dust were 33.8 ng/g (range: 0.12−53,400 ng/g) and 7990 ng/g (2390−27,600 ng/g), respectively. The dust concentrations of OPAs associated with the increasing economic development and population density from western to eastern China, whereas the NOPE concentration in Northeast China (median, 11,900 ng/g; range, 4360−16,400 ng/g) was the highest. Geographically, the distribution of NOPEs was significantly associated with annual sunshine duration and precipitation at each sampling site. Results of laboratory experiments further revealed that the simulated sunlight irradiation promoted the heterogeneous phototransformation of OPAs in dust, and this process was accelerated with the existence of reactive oxygen species and enhanced relative humidity. Importantly, during this phototransformation, the hydroxylated, hydrolyzed, dealkylated, and methylated products, e.g., bis(2,4-di-tert-butylphenyl) methyl phosphate, were identified by nontargeted analysis, part of which were estimated to be more toxic than their parent compounds. The heterogeneous phototransformation pathway of OPAs was suggested accordingly. For the first time, the large-scale distribution of OPAs and NOPEs and the phototransformation of these "new chemicals" in dust were revealed.

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Section: Resultsmentioning

confidence: 53%

Section: Spatial Distribution Of Opas and Nopes And Influencing Factorsmentioning

confidence: 64%

Section: Introductionmentioning

confidence: 99%

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Organophosphite Antioxidants and Novel Organophosphate Esters in Dust from China: Large-Scale Distribution and Heterogeneous Phototransformation

Zhang

Wei

Gao

et al. 2023

Environ. Sci. Technol.

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“…Quantification of suspects utilized six-point calibration curves based on either a) an authentic standard (i.e. non-IS corrected); b) both authentic and isotopically-labelled internal standards; c) semi-quantification with a structurally similar compound (IS-corrected); or d) semi-quantification with parent compound standard, 42,43 used for a limited number of TPs (Table 1). Details of each of these approaches along with the error associated with them 44,45 are discussed in the SI.…”

Section: (Semi-)quantification and Fluorine Mass Balancementioning

confidence: 99%

Pharmaceuticals account for a significant proportion of the extractable organic fluorine in municipal wastewater treatment plant sludge

Spaan

Seilitz

Plassmann

et al. 2022

Preprint

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Fluorine mass balance studies have shown that monomeric per- and polyfluoroalkyl substances (PFAS) with perfluoroalkyl chain lengths of ~5-14 carbon atoms (i.e., “conventional” PFAS) account for a fraction (~2%) of the extractable organic fluorine (EOF) in municipal wastewater treatment plant (WWTP) sludge. The identity of the remaining EOF has thus far been unclear, but may be partly attributable to fluorine-containing pharmaceuticals and pesticides used throughout society. To test this hypothesis, we applied high resolution mass spectrometry-based suspect screening to samples of municipal WWTP sludge which had been previously subjected to a fluorine mass balance. Sixteen pharmaceutical substances (including transformation products [TPs]), one pesticide, and thirteen conventional PFAS were confirmed at confidence levels 1-4, with concentrations ranging from 0.07-155 ng/g dw. Notably, eight pharmaceutical substances did not meet the OECD definition of PFAS. When converted to fluorine equivalents, the newly detected organofluorine substances increased the percentage of known EOF from ~2% to ~27%, of which ~22% was attributed to pharmaceutical- and pesticide substances, with the greatest contributions from a ticagrelor TP (4.0%), ezetimibe (3.9%), and bicalutamide (3.5%). These data highlight the importance of considering both unconventional- and non-PFAS organofluorine substances in addition to conventional PFAS when closing the organofluorine mass balance in WWTP sludge.

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“…The monitoring of priority pollutants included in the WFD and other water international conventions, such as the Convention for the Protection of the Marine Environment of the North-East Atlantic (OSPAR), is of major interest [6]. Persistent organic pollutants (POPs), polychlorinated biphenyls (PCBs), and polycyclic aromatic hydrocarbons (PAHs) have high toxicity [7,8], and, even if the measured concentrations are low, some of them are not fully biodegradable, with carcinogenic and mutagenic properties [9]. Among the most common pollutants, heavy metals have severely damaged aquatic ecosystems over time [10,11].…”

Section: Introductionmentioning

confidence: 99%

Priority Pollutants Monitoring and Water Quality Assessment in the Siret River Basin, Romania

Zait

Sluser

Fighir

et al. 2022

Water

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The Integrated Water Resources Management regulations aim to ensure a good status of surface water quality and its sustainable use. Water quality monitoring of various water users supports the identification of pollution sources and their environmental impacts. The priority pollutants generated by wastewater discharges from municipal, industrial wastewater treatment plants or agricultural areas are of great interest due to their eco-toxicological effects and bio-accumulative properties. The aim of this study was to monitor the priority organic and inorganic pollutants from the Siret River basin, in Romania, with the purpose of assessing the surface water quality status and evaluating it by the Water Quality Index (WAWQI) method. The monitoring of inorganic priority pollutants (e.g., As, Cd, Hg, Ni, Pb) and organic priority pollutants (e.g., Naphthalene, Anthracene, Phenanthrene, Fluoranthene, Benzo(a)anthracene, Benzo(b)fluoranthene, Benzo(k)fluoranthene, Benzo(a)pyrene, Benzo(ghi)perylene, Indeno(1,2,3-cd)pyrene, α, β, and γ-Hexachlorocyclohexane, and Di-2-ethyl-hexyl-phthalate) was conducted within the Siret River basin, during the period 2015–2020. With this purpose, 21 sampling points (18 river sections and 3 lakes) were considered to assess the water quality. The results of this study proved that the water quality within the Siret River basin is generally classified in the 2nd or 3rd class. The spatial distribution of the water quality index values, using ARCGIS, also highlighted the fact that the water quality is mostly unsuitable for drinking water supplies, being influenced by the quality of its main tributaries, as well as by the effluent of wastewater treatment plants.

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A data-independent acquisition approach based on HRMS to explore the biodegradation process of organic micropollutants involved in a biological ion-exchange drinking water filter

Cited by 14 publications

References 47 publications

Organophosphite Antioxidants and Novel Organophosphate Esters in Dust from China: Large-Scale Distribution and Heterogeneous Phototransformation

Organophosphite Antioxidants and Novel Organophosphate Esters in Dust from China: Large-Scale Distribution and Heterogeneous Phototransformation

Pharmaceuticals account for a significant proportion of the extractable organic fluorine in municipal wastewater treatment plant sludge

Priority Pollutants Monitoring and Water Quality Assessment in the Siret River Basin, Romania

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