Taicheng An

Polycyclic aromatic compounds in indoor dust, skin wipes, and urine of oilfield workers: Human exposure pathways and associations with oxidative stress

Ping Lu, Qiaoying Chen, Mengmeng Wang, Chang He et autres

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Bioaerosols in a Squat Toilet under Various Ventilation Scenarios: Pollution Profile and Self-Developed Plasma Air Purifier Elimination

Zhishu Liang, Yuying Chen, Hao Li, Guiying Li et autres

Abstract Squat toilet flushing generates and spreads potential pathogenic bioaerosols that threaten human health, while ventilation and purifiers are potential approaches to alleviate bioaerosol pollution. This study investigated the pollution characteristics of bioaerosols of squat toilet under various ventilation scenarios and their …

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Characterizing Regional Variation of PFAS Profiles in Human Serum from China by Integrated Target and Nontarget Analysis with Machine Learning

Huikang Lin, Chang He, Anna Ji, Xiaohui Yu et autres

Per- and polyfluoroalkyl substances (PFASs) are globally detected in humans, yet regional variations in PFAS exposure remain insufficiently characterized. Herein, by utilizing target and nontarget analysis with machine learning, differences in PFAS exposure were assessed based on 1088 serum samples of the …

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Exposure characteristics and human health risk of various heavy metal(loid)s in urine of occupational workers for different activities of E-waste recycling

Shixing Ren, Weixin Weng, Congcong Yue, Y N Wu et autres

To reach sustainability, e-waste is dismantled and precious materials are extracted for reuse. However, e-waste dismantling poses substantial heavy metal(loid) exposure risks to workers and nearby residents, but process-specific mechanisms and combined risk characteristics remain unclear. We aim to address this gap …

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A critical review of luminescent strategies for bioaerosol analysis: Bridging energy-driven mechanisms to analytical performance for environmental surveillance

扬晓荣, Huahao Ye, Linghui Peng, Zhishu Liang et autres

Bioaerosols, as dynamic and biologically active components of the atmosphere, impose stringent demands on detection technologies. This review presents an energy-driven framework for understanding luminescent strategies in bio­aerosol analysis, highlighting the fundamental tradeoffs inherent in different energy transduction pathways that have been …

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D‐Orbital Coupling and Intrinsic Strain Engineering in Single Atom Tailored Ternary Nanoalloys for Enhanced Methanol Electro‐Oxidation

Weina Zhao, Yihui Huang, Zhanhao Liang, Wencai Liu et autres

ABSTRACT Methanol oxidation reaction (MOR) is an essential anode reaction in direct methanol fuel cells (DMFCs). However, current catalysts often suffer from low activity, poor stability, and CO poisoning. Here, a single‐atom‐tailored ternary alloy, PdCoNi/Cr‐SAC, distinguished by single‐atom‐induced strain, was successfully fabricated. …

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Evolution mechanism of bacterial drug resistance in aquatic environments driven by typical epidemic control drugs

Taicheng An, Zhou Wan, Yiwei Cai, Tong Sun et autres

抗生素耐药性已成为全球重大健康威胁，而抗生素的过度使用是驱动细菌耐药性发展的关键因素。新冠疫情期间，大量控疫药物进入水环境并被频繁检出，然而其对环境水体中微生物抗生素耐药性的影响尚不明确。为此，本研究选取典型控疫药物磷酸氯喹和磷酸奥司他韦，对耐多粘菌素大肠杆菌E. coli DH5α (MCR)进行迭代暴露实验，以明晰其对细菌耐药性演化的作用机制。结果发现：随着2种控疫药物暴露浓度的增加，细菌胞内活性氧物种(ROSs)水平呈现先升后降的趋势，同时超氧化歧化酶活性(SOD)与过氧化氢酶(CAT)活性变化趋势与ROSs基本一致，表明氧化应激响应被激活。此外乳酸脱氢酶(LDH)释放量持续上升，细胞内外膜通透性先增强后趋于减缓。菌体形态出现明显变化，其中磷酸氯喹暴露组细菌个体尺寸显著缩短。在持续药物诱导下，细菌生长活性受到持续抑制，发育过程受阻，代谢活性逐步下降。10、100、1000 mg/L浓度暴露均促使耐多粘菌素菌株不仅对多粘菌素耐药性进一步增强，还广泛产生对其他抗生素的交叉耐药。经100 mg/L磷酸氯喹传代80代后，菌株对多粘菌素、头孢噻肟、美罗培南、环丙沙星、红霉素、四环素的耐药性分别提高至16、10、5、10、3和15倍；而相同浓度磷酸奥司他韦暴露亦导致相应耐药水平提升16、15、5、8、3和15倍。由此可见，水体细菌在典型控疫药物暴露下可显著增强其适应性与耐药演化潜力，并可发展为多重耐药表型。本研究从微生物传代的角度揭示了控疫药物促进耐药性形成的生理与氧化应激机制，可为未来控疫药物管控与耐药性防控提供了新的视角。

Key component groups of environment nanoparticles and their corresponding contribution to oxidative stress of Escherichia coli in water

Chunlei Jiao, Tong Sun, Min Chen, Yiwei Cai et autres

Environmental nanoparticles (NPs) induce oxidative stress damage in Escherichia coli , with the largest NP-components and Al species (predominantly present as γ-Al 2 O 3 ) contributing the most to this damage process.

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Anisotropic Strain‐Induced Piezoelectric Polarization in 3R‐MoS 2 for Enhanced Piezo‐Photocatalytic Oxidation of Formaldehyde

Weina Zhao, Chang Shen, Xinyue Fang, Shengnan Song et autres

ABSTRACT The efficient removal of formaldehyde (HCHO), a pervasive and hazardous atmospheric pollutant, remains challenging due to inherent limitations in conventional photocatalysis, particularly rapid charge recombination and insufficient reactive oxygen species (ROS) generation. Although the non‐centrosymmetric structure of sliding ferroelectric 3R‐MoS 2 …

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Advancing Health Risk Assessment: Integrating Exposure Routes and Bioavailability to Quantify Internal Dose

Guiying Li, Yunyun Zhang, Jianwei Gu, Taicheng An

As the linkage between environmental pollution and health outcomes, exposure routes characterize how pollutants enter the human body, constituting the foundation of health risk assessment. Pollutants primarily enter body through three major routes: ingestion, inhalation, and dermal contact. The exposure routes govern …

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Development of nontarget method based on GC-QTOF-HRMS for analyzing organic pollutants in human serum

Congcong Yue, Chang He, Hailing Li, Zhiquan Yuan et autres

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Understanding the synergetic effect of CuPt bimetallic active sites for catalytic CH3SH combustion

Lu Wang, Meixin Li, Songliang Du, Siyao Liu et autres

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