Base-driven dehydrohalogenation coupled with catalytic hydrodehalogenation as a novel strategy for rapid dehalogenation of halogenated organic compounds containing aliphatic C-X bonds DOI

Shuting Qin,

Chen Wu,

Xuanxuan Ma

и другие.

Journal of environmental chemical engineering, Год журнала: 2024, Номер 12(6), С. 114983 - 114983

Опубликована: Ноя. 29, 2024

Язык: Английский

An Enhanced Protocol to Expand Human Exposome and Machine Learning-Based Prediction for Methodology Application DOI

Ana He,

Yiming Yao, Shijie Chen

и другие.

Environmental Science & Technology, Год журнала: 2025, Номер unknown

Опубликована: Фев. 10, 2025

The human exposome remains limited due to the challenging analytical strategies used reveal low-level endocrine-disrupting chemicals (EDCs) and their metabolites in serum urine. This limits integrity of EDC exposure assessment hinders understanding cumulative health effects. In this study, we propose an enhanced protocol based on multi-solid-phase extraction (multi-SPE) expand with polar EDCs train a machine learning (ML) model for methodology prediction molecular descriptors. measurement 70 (25%) 34 (12%) out 295 well-acknowledged urine compared hydrophilic–lipophilic balance sorbent alone. nontarget analysis from 20 women childbearing age cohort 498, controlling occupational factors daily behaviors high chemical potential, multi-SPE increased 10 (40%) 16 (53%) target identification 17 (77%) (36%) (confidence ≥ level 3) urine, respectively. Interestingly, ML predicted that could identify additional 38% most bioactive chemicals. conclusion, advances by expanding profiles.

Язык: Английский

Процитировано

0

Prevalence of tetrabromobisphenol A and its related compounds in an anthropogenic impacted soil-groundwater system: Concern for understudied derivatives DOI Creative Commons
Shuang Cao, Aifeng Liu, Feng Guo

и другие.

Environmental Chemistry and Ecotoxicology, Год журнала: 2025, Номер unknown

Опубликована: Фев. 1, 2025

Язык: Английский

Процитировано

0

Mechanistic Insights into Carbon Black-Activated AKT/TMEM175 Cascade Impairing Macrophage-Epithelial Cross-Talk and Airway Epithelial Proliferation DOI

Yawen Feng,

Xiaowen Tang,

Hongying Fu

и другие.

Environmental Pollution, Год журнала: 2025, Номер unknown, С. 126076 - 126076

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0

Bioaccumulation and Maternal Transfer of Brominated Flame Retardants in Poultry and the Health Risks from Dietary Exposure DOI Creative Commons
Ying Li, Ling Wang, Lei Shi

и другие.

Environment & Health, Год журнала: 2025, Номер unknown

Опубликована: Март 17, 2025

Язык: Английский

Процитировано

0

Exposome-Scale Investigation of Cl-/Br-Containing Chemicals Using High-Resolution Mass Spectrometry, Multistage Machine Learning, and Cloud Computing DOI
Tingting Zhao,

Brian J. Low,

Qiming Shen

и другие.

Analytical Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Май 22, 2025

Over 70% of organic halogens, representing chlorine- and bromine-containing disinfection byproducts (Cl-/Br-DBPs), remain unidentified after 50 years research. This work introduces a streamlined cloud-based exposomics workflow that integrates high-resolution mass spectrometry (HRMS) analysis, multistage machine learning, cloud computing for efficient analysis characterization Cl-/Br-DBPs. In particular, the learning structure employs progressively different heavy isotopic peaks at each layer capture distinct characteristics nonhalogenated compounds Cl-/Br-compounds halogenation levels. innovative approach enables recognition 22 types with up to 6 Br 8 Cl atoms. To address data imbalance among classes, particularly limited number heavily chlorinated brominated compounds, perturbation is performed generate hypothetical/synthetic molecular formulas containing multiple atoms, facilitating augmentation. further benefit environmental chemistry community computational experience hardware access, above innovations are incorporated into HalogenFinder (http://www.halogenfinder.com/), user-friendly, web-based platform Cl-/Br-compound characterization, statistical support via MetaboAnalyst. benchmarking, outperformed two established tools, achieving higher rate 277 authentic uniquely identifying Cl/Br laboratory tests DBP mixtures, it identified 72 Cl-/Br-DBPs proposed structures, which eight were confirmed chemical standards. A retrospective 2022 finished water HRMS revealed insightful temporal trends in Cl-DBP features. These results demonstrate HalogenFinder's effectiveness advancing identification science exposomics.

Язык: Английский

Процитировано

0

Prenatal Pesticide Exposure and Adverse Reproductive Outcomes: Epidemiological Evidence and Mechanistic Insights DOI

Yubing Ma,

Daniel Schleck,

Jing Liu

и другие.

Journal of Hazardous Materials, Год журнала: 2025, Номер 494, С. 138792 - 138792

Опубликована: Май 30, 2025

Язык: Английский

Процитировано

0

Kinetic stability and transformation pathway of halogenated nitrophenols in drinking water DOI

Jiacheng Ge,

Xiao-Yan Chen, Zhenqi Du

и другие.

Journal of Hazardous Materials, Год журнала: 2025, Номер unknown, С. 138812 - 138812

Опубликована: Июнь 1, 2025

Язык: Английский

Процитировано

0

First Evidence of Novel Organothiophosphate Esters as Prevalent New Pollutants in Dust from Automotive Repair Shops Discovered by High-Resolution Mass Spectrometry DOI
Xiaoxia Feng,

Wenzhuo Xu,

Xiaomeng Ji

и другие.

Environmental Science & Technology, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 24, 2024

The occurrence of organophosphorus compounds has garnered global concern due to their widespread production and potential environmental risks. Limited structural information hindered a comprehensive understanding composition. By characteristic fragmentation-based nontarget analysis, the composition organothiophosphate esters (OTPEs), which are antiwear additives in lubricant oils that have received little attention previously, were investigated dust from automotive repair shops surrounding buildings. Fourteen OTPEs tentatively identified, including four triarylphosphorothionates, six

Язык: Английский

Процитировано

1

Base-driven dehydrohalogenation coupled with catalytic hydrodehalogenation as a novel strategy for rapid dehalogenation of halogenated organic compounds containing aliphatic C-X bonds DOI

Shuting Qin,

Chen Wu,

Xuanxuan Ma

и другие.

Journal of environmental chemical engineering, Год журнала: 2024, Номер 12(6), С. 114983 - 114983

Опубликована: Ноя. 29, 2024

Язык: Английский

Процитировано

0