Yiwen Yang , Xiaoyue Tang , Pengfei Zhang , Chunhao Mo , Feng Huang , Zhiguo Wen
{"title":"Effect of microplastics on antibiotic resistome risk in composting","authors":"Yiwen Yang , Xiaoyue Tang , Pengfei Zhang , Chunhao Mo , Feng Huang , Zhiguo Wen","doi":"10.1016/j.envres.2025.122241","DOIUrl":"10.1016/j.envres.2025.122241","url":null,"abstract":"<div><div>Microplastics are a growing concern worldwide because of their impact on the environment and human health. Composting is an effective method for managing antibiotic resistome risk in organic waste, yet the effects of microplastics on antibiotic resistome risk in composting are not well understood. In this study of laying hen manure, the microplastic polypropylene increased the temperature of the compost but did not significantly affect the total composition, abundance and risk score of antibiotic resistance genes (ARGs) during composting. The dominant phyla on microplastics and manure were Actinobacteria, Firmicutes and Proteobacteria. <em>Escherichia</em> (bin.70), <em>Oceanobacillus</em> (bin.85) and <em>Mycobacterium</em> (bin.79) were the main ARG hosts. Among them, the abundance of the ARG host <em>Mycobacterium</em> (bin.79) was significantly higher in microplastics than in manure. Furthermore, ARG transfer occurred between the ARG host <em>Mycobacterium</em> (bin.79) and other microorganisms on microplastics and manure. These findings indicate that while microplastics may not strongly affect the overall antibiotic resistome risk during composting, they increase the likelihood of horizontal gene transfer in specific ARG hosts. This underscores the critical need to control both microplastic and resistance contamination.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"284 ","pages":"Article 122241"},"PeriodicalIF":7.7,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144489950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xiangyu Xiao , Suhua Zhai , Jiayiwen Wang , Muqun Wang , Min Huang , Ye Tao , Hongxiao Wang , Jianhua Xiong , ChuJian Wang , Yu Liang
{"title":"In situ analysis of oxygen vacancy modified TiO2-Ov/g-C3N4 S-scheme heterojunction by 2D-PCIS spectroscopy for efficient synergistic photocatalytic degradation of naphthalene in water","authors":"Xiangyu Xiao , Suhua Zhai , Jiayiwen Wang , Muqun Wang , Min Huang , Ye Tao , Hongxiao Wang , Jianhua Xiong , ChuJian Wang , Yu Liang","doi":"10.1016/j.envres.2025.122231","DOIUrl":"10.1016/j.envres.2025.122231","url":null,"abstract":"<div><div>The S-scheme heterojunction notably improves the separation and transport of photogenerated carriers due to its distinctive charge transfer mechanism and structural advantages. In this study, TiO<sub>2</sub> was synthesized in situ on <em>g</em>-C<sub>3</sub>N<sub>4</sub> using a hydrothermal method, followed by calcination to introduce oxygen vacancies and construct the S-scheme heterojunction photocatalyst (TCN). Experimental results showed that the optimal performance was achieved with a TiO<sub>2</sub>-O<sub>v</sub> content of 30%, where the TCN-30 catalyst degraded over 82.44% of naphthalene (Nap) within 180 minutes. Electron spin resonance (ESR) analysis confirmed the presence of many oxygen vacancy defects in TCN-30, as well as the generation of reactive oxygen species (ROS) during the experimental process, which played a key role in enhancing Nap degradation. Subsequently, a series of photoelectrochemical tests were conducted to demonstrate the excellent synergistic effect between oxygen vacancies and the strategy of constructing heterojunctions. Additionally, density functional theory (DFT) calculations helped clarify the working mechanism of the TCN S-scheme heterojunction and revealed its structure–activity relationship in photocatalytic applications. This study offers a theoretical foundation and technical guidance for the future design of photocatalysts tailored to specific functional needs.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"284 ","pages":"Article 122231"},"PeriodicalIF":7.7,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144511292","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Elevated public health risks from changes in microbial communities mediated by moso bamboo invasion.","authors":"Ruijia Chen, Xu Li, Chushu Meng, Chaotang Lei, Fasih Ullah Haider, Xu-Jun Liu, Juxiu Liu, Shu-Yi-Dan Zhou","doi":"10.1016/j.envres.2025.122215","DOIUrl":"10.1016/j.envres.2025.122215","url":null,"abstract":"<p><p>The invasion of moso bamboo significantly alters aboveground vegetation, yet its impact on soil microbial communities and associated ecological functions remains under-explored. To address this knowledge gap, we conducted a comprehensive survey across 24 sites spanning varying invasion gradients (non-invaded, half-invaded, fully-invaded) along an urbanization transect encompassing mountain, rural, suburban, and urban habitats. Our results reveal that bamboo invasion strengthens deterministic processes governing microbial community assembly. Fungal communities demonstrated stronger deterministic assembly patterns compared to bacteria and served as more reliable bio-indicators of invasion stages, as assessed via random forest modeling. Notably, moso bamboo presence correlated with elevated soil concentrations of antibiotic resistance genes (ARGs) and virulence factors (VFs). Rural sites exhibited atypical trends, potentially due to intrinsically high baseline levels of ARGs and VFs. Structural equation modeling clarified that bamboo invasion induces shifts in soil physicochemical properties, which in turn drive deterministic selection of microbial taxa harboring ARGs/VFs-including potential human pathogens. Essentially, restoration of bamboo-dominated ecosystems effectively reduced the abundance of these resistance and virulence elements. Co-occurrence network analyses further identified microbial taxa with pathogen-lysis capabilities, highlighting natural biological control mechanisms within invaded soils. This study deepens understanding of how moso bamboo invasion remodels soil microbiomes and their functional profiles, providing actionable insights for mitigating ecological risks linked to invasive plant dynamics.</p>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":" ","pages":"122215"},"PeriodicalIF":7.7,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144511289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Cameron J. Jack , Cody Prouty , Gerbson A. Mendonça , Ping Li Dai , Jeffrey R. Bloomquist , James D. Ellis
{"title":"A new cage design to test pesticide impacts on honey bees via toxicant exposure through sucrose, pollen and beeswax simultaneously","authors":"Cameron J. Jack , Cody Prouty , Gerbson A. Mendonça , Ping Li Dai , Jeffrey R. Bloomquist , James D. Ellis","doi":"10.1016/j.envres.2025.122234","DOIUrl":"10.1016/j.envres.2025.122234","url":null,"abstract":"<div><div>Western honey bees (<em>Apis mellifera</em>) are exposed to pesticides via nectar/honey, pollen and beeswax. The impacts of honey bee exposure to pesticides via pollen or beeswax currently are not considered in pesticide risk assessments. Correspondingly, we developed an <em>in vitro</em> method through which one can expose adult honey bees to pesticide residues in all matrices simultaneously. The design requires modifying <em>in vitro</em> cages to accommodate a pollen paste feeder and beeswax, determining the appropriate concentration of a toxic standard (dimethoate) needed in both matrices to kill 50 % of exposed adult honey bees (positive control), and integrating the test substances into the matrices consistently and evenly. We established five concentrations of dimethoate, a solvent control (acetone) and a negative control for sucrose water, pollen paste, and beeswax. Each dose was tested with three cages, 10 bees/cage, following EPA and OECD guidelines for Tier 1 tests. Mortality was significantly different between bees in the treatment and control groups at 0.1875–3 μg/g dimethoate in sucrose water, 48–192 μg/g in pollen, and 30–120 μg/g in beeswax. We conducted an additional experiment by adding the highest recorded levels of imidacloprid detected in honey (represented by sucrose water), pollen, and beeswax to each matrix as a proof-of-concept for our proposed method. Survival of bees in this worst-case scenario treatment was significantly lower than that in the solvent control group. The addition of pollen and beeswax as matrices for test substance screening will increase the biological relevance of honey bee toxicity tests.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"284 ","pages":"Article 122234"},"PeriodicalIF":7.7,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144489863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Guiquan Du , Kai Tang , Canhui Song , Hang Yu , Yuheng Zhu , Faqian Sun , Chongjun Chen
{"title":"Enhanced nitrogen removal and microbial synergy in a low-energy vibration-assisted membrane bioreactor for urban wastewater treatment","authors":"Guiquan Du , Kai Tang , Canhui Song , Hang Yu , Yuheng Zhu , Faqian Sun , Chongjun Chen","doi":"10.1016/j.envres.2025.122242","DOIUrl":"10.1016/j.envres.2025.122242","url":null,"abstract":"<div><div>Membrane bioreactor (MBR) offers promising solutions for municipal wastewater treatment; however, challenges related to energy consumption and nitrogen removal efficiency persist. In this study, a low-energy partial nitrification MBR (LEP-N-MBR) system—including conventional aeration MBR (AMBR) and equipped with membrane vibration MBR (VMBR)—were evaluated during startup for pollutant removal performance, extracellular polymeric substances (EPS) dynamics, and microbial community structure. Both systems achieved high chemical oxygen demand (COD) and NH<sub>4</sub><sup>+</sup>-N removal, but the VMBR exhibited superior total nitrogen (TN) removal (54.7 %) compared to the AMBR (34.2 %) due to enhanced denitrification under vibration-induced anoxic conditions. EPS analysis revealed lower protein (PN) content in aerobic pools and increased polysaccharide (PS) accumulation in the MBR compartments, reflecting microbial adaptation and improved sludge floc stability. High-throughput sequencing showed shared enrichment of <em>Proteobacteria</em> and <em>Bacteroidota</em>, while VMBR fostered greater functional bacterial interactions and niche specialization, particularly among denitrifying genera. The novelty of this article lies in linking vibration-induced hydrodynamic conditions to enhanced denitrification through microbial niche specialization and EPS adaptation. This improves the nitrogen removal capacity of energy-efficient MBR systems, increases the potential for microbial resilience, and provides a basis for future large-scale process applications.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"284 ","pages":"Article 122242"},"PeriodicalIF":7.7,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144489961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shaima Ibrahim Alsabbahen , Ijaz Hussain , Esraa Kotob , Saheed A. Ganiyu , Khalid Alhooshani
{"title":"Recent advancements in porous sorbent materials and micro solid-phase extraction (μ-SPE) modifications for improved pesticide identification in waste water","authors":"Shaima Ibrahim Alsabbahen , Ijaz Hussain , Esraa Kotob , Saheed A. Ganiyu , Khalid Alhooshani","doi":"10.1016/j.envres.2025.122221","DOIUrl":"10.1016/j.envres.2025.122221","url":null,"abstract":"<div><div>The extensive application of pesticides, although advantageous for agricultural productivity, however, it presents considerable hazards to aquatic systems, human health, fauna, and ecosystems. To mitigate these issues, there is an immediate requirement for precise and sensitive analytical techniques to assess residues from pesticides in diverse matrices of environments, such as air, soil, water, and biological entities. It is believed that preconcentration procedures are essential for improving the efficacy and sensitivity of these analyses. One technology that has shown great promise in identifying pesticide residues in contaminated wastewater is the solid phase micro-extraction, often known as micro-SPE (μ-SPE). Although enormous experimental research on μ-SPE has been conducted in previous years using several adsorbent materials. For better pesticide detection in analytical samples, it is imperative to produce a state-of-the-art review of recent developments in porous sorbent materials and μ-SPE modifications. This review gives a thorough primer to μ-SPE, explaining its basic principles and highlighting its numerous developments, such as the fabrication of porous sorbent materials like traditional sorbents, carbon-based materials, metal-organic frameworks (MOFs), polymeric materials, and sorbents based on ionic liquids. Integration of modified μ-SPE procedures with other microextraction methods is also discussed in the paper. These processes include dispersive, magnetic, vortex-assisted, and microwave-assisted approaches. The key determinants that govern the operation of μ-SPE, such as sorbent material, sample volume, the time allowed for extraction, and the conditions for desorption, will be described in detail. In addition to this, the effectiveness of μ-SPE in detecting pesticide residues using GC-MS, as well as identifying potential challenges and opportunities, has been discussed in this review to improve environmental monitoring and large-scale applications.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"284 ","pages":"Article 122221"},"PeriodicalIF":7.7,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144502824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yuxiao Wang , Lingchen Bu , Zanmei Wei , Yang Cheng , Ling Feng , Shaoshuai Wang
{"title":"Extreme urban temperature exposure and preterm birth: Spatial-temporal risk zone prediction using machine learning models","authors":"Yuxiao Wang , Lingchen Bu , Zanmei Wei , Yang Cheng , Ling Feng , Shaoshuai Wang","doi":"10.1016/j.envres.2025.122230","DOIUrl":"10.1016/j.envres.2025.122230","url":null,"abstract":"<div><div>This study investigates temperature impacts on preterm birth (PTB) using residential address GPS coordinates for 311,972 pregnant women in Wuhan, China, coupled with daily environmental data. We developed a machine learning model to analyze the impact of environmental exposure on PTB. Results show PTB risks increase with temperatures below 14 °C or above 21 °C, excessive temperature variability, and acute exposure to extreme weather. Spatial analysis revealed heat-related risk zones concentrated in urban heat island areas, while cold-related risks were more widespread. This research provides novel insights into spatiotemporal patterns of temperature-related PTB risk, offering evidence-based recommendations for urban health planning and climate adaptation strategies. The integration of machine learning and spatial analysis represents a significant advancement in environmental health research methodology.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"284 ","pages":"Article 122230"},"PeriodicalIF":7.7,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144511290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Polystyrene microplastics (PS-MPs): A Review on metabolic disruptions and potential obesogenic implications using -omics approaches based evidences on zebrafish model","authors":"Sabrine Afsa , Maria Maisano , Antonino Germanà , Tiziana Cappello","doi":"10.1016/j.envres.2025.122236","DOIUrl":"10.1016/j.envres.2025.122236","url":null,"abstract":"<div><div>The ubiquitous exposure of living organisms to microplastics (MPs) is well documented. In particular, polystyrene MPs (PS-MPs) are among the most frequently detected and persistent plastics in the environment. Recently, growing evidence showed that PS-MPs could interfere with several metabolic pathways, resulting in alteration of lipid and energy metabolism, as well as multiple metabolic disorders, in zebrafish (ZF). These findings may support the obesogenic potential of MPs, which could be unsuspected key drivers of obesity's expanding prevalence in the world over the last decades, particularly with the parallel increase in plastics production. In this Review, we focus on recent -omics based studies to provide a comprehensive synthesis of the metabolic disturbances provoked by PS-MPs and their obesogenic potential in ZF. This literature Review revealed that PS-MPs could induce metabolic alterations, mostly affecting glycolipid metabolism and energy homeostasis at the transcriptomic and metabolomic levels. Microbiota dysbiosis may also largely contribute to the obesogenic effects. Although some key pathways are suggested as candidate obesogenic mechanisms of PS-MPs additional studies integrating multi-omics approaches are needed to fully understand the mechanistic/molecular basis of PS-MPs in ZF. Functional analyses such as mitochondrial respiration assays, microbiota manipulation/transplantation as well as <em>in vitro</em> mechanistic studies are also required to support -omics findings.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"284 ","pages":"Article 122236"},"PeriodicalIF":7.7,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144511304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kangping Huang , Tianwen Zheng , Xinyue Li , Ziyin Yang , Ruoxi Li , Yizhou Liu , Wenxia Wei , Yimin Sang , Heming Wang
{"title":"Long-term removal characterization of trichloroethylene from groundwater using sustained-release iron-carbon composite: Investigations through batch and column experiments","authors":"Kangping Huang , Tianwen Zheng , Xinyue Li , Ziyin Yang , Ruoxi Li , Yizhou Liu , Wenxia Wei , Yimin Sang , Heming Wang","doi":"10.1016/j.envres.2025.122222","DOIUrl":"10.1016/j.envres.2025.122222","url":null,"abstract":"<div><div>Nano-zero-valent iron (nZVI) is commonly used as a reactive material for trichloro-ethylene (TCE) remediation in groundwater systems, and the long-term removal capacity serves as a critical indicator for evaluating the material efficacy. In this study, a novel sustained-release iron-carbon composite (BC@nZVI-βCD) was synthesized by the integration of biochar (BC) matrix and β-cyclodextrin (βCD) encapsulation, and the materials before and after modification were analyzed by various characterization methods. Subsequently, the kinetics of TCE removal by different materials were investigated, and the sustained-release properties of BC@nZVI-βCD were explored by batch and column experiments. Finally, the long-term TCE removal mechanism was discussed carefully. The results showed that the incorporation of BC increased the specific surface area and dispersion of nZVI, while βCD successfully encapsulated nZVI and formed abundant nanocracks on the surface. The removal of TCE by BC@nZVI-βCD was in accordance with the pseudo-second-order kinetic equation, and the removal rate of TCE was as high as 97 % within 3 h, and 92.7 % of TCE was degraded within 14 d. Moreover, BC@nZVI-βCD maintained a stable removal efficiency of TCE in long-term sand column experiments, with the removal rate remaining above 94 % for the first 32 d, and the removal rate also reached 78.6 % by 86 d. In conclusion, the synergistic effect of both BC and βCD breaks through the limitation of pure nZVI, improves the sustained-release performance of the BC@nZVI-βCD composite and the degradation effect of TCE, which can have great application prospects on the long-term remediation of TCE contaminated sites.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"284 ","pages":"Article 122222"},"PeriodicalIF":7.7,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144489860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Noman Ali Shah , Xiaobing Chen , Ayesha Javed , Jiao Qu , Ya-nan Zhang
{"title":"A comparative study on degradation kinetics and toxicity changes of BPA and BPS in UV-based advanced oxidation processes","authors":"Noman Ali Shah , Xiaobing Chen , Ayesha Javed , Jiao Qu , Ya-nan Zhang","doi":"10.1016/j.envres.2025.122223","DOIUrl":"10.1016/j.envres.2025.122223","url":null,"abstract":"<div><div>Bisphenol A (BPA) and Bisphenol S (BPS) are endocrine-disrupting chemicals that pose significant ecological and health risks due to their persistence and toxicity. This study presents a comprehensive comparison of three UV-based advanced oxidation processes (UV-AOPs: UV/Cl, UV/PDS, and UV/H<sub>2</sub>O<sub>2</sub>) for degrading BPA and BPS, with an emphasis on correlating degradation efficiency to the toxicity of transformation products (TPs). Using a 500 W mercury vapor lamp, we demonstrate how differences in electronic properties (e.g., BPA's electron-rich rings vs. BPS's electron-withdrawing sulfonyl group) influence radical selectivity (SO<sub>4</sub><sup>•−</sup>, •OH, RCS) and by-product risks. The effects of oxidant dosage, pH, and dissolved organic matter were examined. The toxicity of degradation by-products was evaluated using an integrated approach combining ECOSAR predictions and <em>Vibrio fischeri</em> bioassays to reveal critical trade-offs between degradation rates and TP safety. The UV/PDS system demonstrated the highest BPA removal efficiency (96.5 % in 10 min, <em>k</em> = 0.3185 ± 0.034 min<sup>−1</sup>) under alkaline conditions, primarily via sulfate radicals (SO<sub>4</sub><sup>•−</sup>). In contrast, BPS degradation was less efficient (<em>k</em> = 0.0910 min<sup>−1</sup>) due to the lower reactivity of its sulfonyl group. The UV/Cl process generated chlorinated by-products, such as TP07, with toxicity levels 1.5 to 2.0 times higher than the parent compounds, while UV/H<sub>2</sub>O<sub>2</sub> produced hydroxylated by-products that were 25 % more toxic than BPA. Notably, chlorinated derivatives increased toxicity in BPA but reduced it in BPS due to steric hindrance from the sulfonyl group, a structural nuance not previously reported in AOP studies. Oxidized by-products were generally less toxic, whereas fragmented products exhibited higher toxicity than their precursors. These findings support pollutant-specific optimization of UV-AOPs, identifying UV/PDS as the most effective for BPA degradation while emphasizing the need for sulfonyl-targeted refinement in BPS treatment.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"284 ","pages":"Article 122223"},"PeriodicalIF":7.7,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144489949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}