Microbial Turnover of Glyphosate to Biomass: Utilization as Nutrient Source and Formation of AMPA and Biogenic NER in an OECD 308 Test DOI
Andreas Libonati Brock, Arno Rein, Fabio Polesel

et al.

Environmental Science & Technology, Journal Year: 2019, Volume and Issue: 53(10), P. 5838 - 5847

Published: April 17, 2019

Environmental fate assessment of chemicals involves standardized simulation tests with isotope-labeled molecules to balance transformation, mineralization, and formation nonextractable residues (NER). Methods predict microbial turnover biogenic NER have been developed, having limited use when metabolites accumulate, the are not only C source, or provide for other macroelements. To improve predictive capability, we extended a recently developed method growth yield estimation account incomplete degradation multiple-element assimilation combined it dynamic model description in soils sediments. We evaluated results against unique experimental data 13C3-15N co-labeled glyphosate AMPA water-sediment systems (OECD 308). Balancing 13C- 15N- fluxes biomass showed pronounced shift transformation from full mineralization formation. This may be explained by various hypotheses, example, substrate inherent batch conditions test system causing starvation inhibition P release. Modeling indicate initial N overload due lower C/N ratio compared average cell composition leading subsequent demand accumulation AMPA.

Language: Английский

Abiotic transformation of polycyclic aromatic hydrocarbons via interaction with soil components: A systematic review DOI

Jinbo Liu,

Chi Zhang, Hanzhong Jia

et al.

Critical Reviews in Environmental Science and Technology, Journal Year: 2022, Volume and Issue: 53(5), P. 676 - 699

Published: June 6, 2022

Natural attenuation is a major ecosystem function allowing to abate soil organic contaminants such as polycyclic aromatic hydrocarbons (PAHs). Biodegradation of PAHs classically considered the driver natural attenuation, yet role abiotic transformation, including photodegradation, chemical oxidation, formation non-extractable residues, and polymerization, has been overlooked due lack investigations until recently. This paper reviews dissipation in soils by processes photodegradation oxidation catalyzed inorganic minerals matters. The components on degradation rates, pathways, mechanisms are discussed. products transformation their potential risks also described. Abiotic transformations mainly controlled interactions between clay minerals, metal oxides/hydroxides, matter. PAH proceeds both direct indirect photolysis processes, which enhanced presence photosensitizers, for example, matter, photocatalysts, oxides/hydroxides. can be chemically/catalytically oxidized MnO2, FexOy, without light irradiation. Overall, depends electron-donating properties, mineral electron-accepting pH, temperature, moisture, oxygen content. Following elucidation transformative mechanism, knowledge understand impact biodegradation delineated. Future needed advance correlation laboratory generated rates field applications, applications based proposed.

Language: Английский

Citations

28
Fate of bisphenol A (BPA) in a flooded soil-rice system DOI
Songfeng Wang, Yu Su, Miaomiao Cheng

et al.

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 459, P. 132177 - 132177

Published: July 27, 2023

Language: Английский

Citations

13
Determination of non-extractable residues in soils: Towards a standardised approach DOI Creative Commons

Dirk Loeffler,

Annika Hatz,

D. Albrecht

et al.

Environmental Pollution, Journal Year: 2019, Volume and Issue: 259, P. 113826 - 113826

Published: Dec. 16, 2019

After exposure of soils to anthropogenic organic chemicals non-extractable residues (NER) can be formed. The quantitative proportion a compound which remains is operationally defined by the extraction procedure employed and quantified only when using isotope labelled compounds (e.g. 14C or 13C). In Germany EU, there no standardised procedure, how determine NER, especially different legal regulations apply. Consequently, comparability NER data low. Hence, major task this study was development general approach for quantification in radiotracer analysis. For that, efficiencies were determined 42 non-labelled spiked onto 3 applying number techniques conditions, developing an provides high low variability broad spectrum analytes. Additionally, generated within soil transformation studies according OECD 307 14C-triclosan, 14C-fenoxycarb 14C-acetaminophen analysed sequential batch pressurised liquid (PLE). Depending on used, fraction related 14C-triclosan varied greatly between 96% 28%. widely universal developed improve limit overestimation enormous consequence assessment persistence environmental risk chemicals. Furthermore, silylation, EDTA-extraction HCl-treatment compared regarding further analysis

Language: Английский

Citations

37
Fate of bisphenol S (BPS) and characterization of non-extractable residues in soil: Insights into persistence of BPS DOI Creative Commons
Siqi Cao, Songfeng Wang, Yingying Zhao

et al.

Environment International, Journal Year: 2020, Volume and Issue: 143, P. 105908 - 105908

Published: June 29, 2020

The environmental fate and persistence of bisphenol S (BPS), a substitute for A (BPA), are unclear. This study used 14C-labeled BPS to examine the fate, biodegradation, residue properties incubated in an oxic soil 28 days. dissipated quickly, with half-life 2.8 Most was mineralized (53.6 ± 0.2% initial amount by day 28) or transformed into non-extractable residues (NERs) (45.1 0.3%), generation minor extractable (3.7 0.2%) containing two metabolites. NERs were formed mainly via physico-chemical entrapment (51.1 2.4% total NERs, consisting almost exclusively BPS) ester-linkages (31.5 3.0% both polar metabolites). When mixed fresh soil, BPS-derived became unstable bioavailable. Subsequent mineralization determined 19.5 1.1% 35.5 2.6% physico-chemically entrapped BPS. model describe kinetics NER formation, which indicated that microbial activity could have strongly reduced kinetic rate release free form therefore increased stability this type soil. Our results provide unique insights suggest while is biodegradable, it includes formation large amounts reversibly covalently bound ester-linked NERs. instability these should be considered assessments on risks also points out importance agrochemicals.

Language: Английский

Citations

37
Chromatographic determination of pesticides in soil: Current trends in analysis and sample preparation DOI
Dina Orazbayeva, Aset Muratuly, Marat Bektassov

et al.

Trends in Environmental Analytical Chemistry, Journal Year: 2022, Volume and Issue: 35, P. e00174 - e00174

Published: Aug. 3, 2022

Language: Английский

Citations

20
Temporal dynamics of total and bioavailable fungicide concentrations in soil and their effect upon nine soil microbial markers DOI
Judith Riedo, Aya Yokota,

Barbara Walther

et al.

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 878, P. 162995 - 162995

Published: March 21, 2023

Language: Английский

Citations

12
Development of a 3–step sequential extraction method to investigate the fraction and affecting factors of 21 antibiotics in soils DOI
Yue Zhang, Yanwen Ma, Ruijie Zhang

et al.

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 469, P. 133842 - 133842

Published: Feb. 20, 2024

Language: Английский

Citations

4
Maize (Zea mays L.) Plants Alter the Fate and Accumulate Nonextractable Residues of Sulfamethoxazole in Farmland Soil DOI
Xuan Wu, Feifei Sun, Siqi Cao

et al.

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(21), P. 9292 - 9302

Published: May 16, 2024

The fate of sulfonamide antibiotics in farmlands is crucial for food and ecological safety, yet it remains unclear. We used [phenyl-U-14C]-labeled sulfamethoxazole (14C-SMX) to quantitatively investigate the SMX a soil–maize system 60 days, based on six-pool model. Formation nonextractable residues (NERs) was predominant unplanted soil, accompanied by minor mineralization. Notably, maize plants significantly increased dissipation (kinetic constant kd = 0.30 day–1 vs 0.17 day–1), while substantially reducing NER formation (92% 58% initially applied SMX) accumulating (40%, mostly bound roots). Significant NERs (maximal 29–42%) were formed via physicochemical entrapment (determined using silylation), which could partially be released taken up plants. consisted considerable amount (1–8%) alkali-hydrolyzable covalent bonds (2–12%, possibly amide linkage). Six 10 transformation products quantified soil extracts NERs, respectively, including hydroxyl substitution, deamination, N-acylation, among N-lactylated found first time. Our findings reveal composition instability SMX-derived soil–plant underscore need study long-term impacts reversible NERs.

Language: Английский

Citations

4
Hydrogen isotope labeling unravels origin of soil-bound organic contaminant residues in biodegradability testing DOI Creative Commons
Sophie Lennartz,

Harriet A. Byrne,

Steffen Kümmel

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Oct. 24, 2024

Biodegradability testing in soil helps to identify safe synthetic organic chemicals but is still obscured by the formation of soil-bound 'non-extractable' residues (NERs). Present-day methodologies using radiocarbon or stable (

Language: Английский

Citations

4
Dissipation of the insecticide profenofos in tropical agricultural soils (Berambadi catchment, South India): insight from compound-specific isotope analysis (CSIA) DOI Creative Commons
Jérémy Masbou,

C. Grail,

Sylvain Payraudeau

et al.

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: unknown, P. 137428 - 137428

Published: Jan. 1, 2025

Language: Английский

Citations

0