ACS ES&T water最新文献

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Rapid and Facile Spectrophotometric Method for the Selective Determination of Peroxymonosulfate, Peroxydisulfate, and Hydrogen Peroxide in Ternary Mixtures 快速简便分光光度法选择性测定三元混合物中过氧单硫酸根、过氧二硫酸根和过氧化氢的含量
IF 4.5
ACS ES&T water Pub Date : 2026-10-09 Epub Date: 2026-09-09 DOI: 10.1021/acsestwater.6c00634
Anna M. Dorfmüller, Mark M. Pradja, Christian Modrzynski, Jonathan Z. Bloh
{"title":"Rapid and Facile Spectrophotometric Method for the Selective Determination of Peroxymonosulfate, Peroxydisulfate, and Hydrogen Peroxide in Ternary Mixtures","authors":"Anna M. Dorfmüller,&nbsp;Mark M. Pradja,&nbsp;Christian Modrzynski,&nbsp;Jonathan Z. Bloh","doi":"10.1021/acsestwater.6c00634","DOIUrl":"https://doi.org/10.1021/acsestwater.6c00634","url":null,"abstract":"<p>Peroxides such as peroxydisulfate (PDS), peroxymonosulfate(PMS),and hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) are important bulkoxidants used in wastewater treatment, bleaching, or leaching. Inmany of these processes and during electrosynthesis, they often coexistin complex mixtures. Selective quantification of each peroxide constitutesa fundamental step toward understanding and optimizing these processes.However, achieving selectivity poses a major analytical challengesince most quantification methods rely on the oxidative propertiestoward indicators and interference through coexisting peroxides iscommon. In this study, the different iodide oxidation kinetics ofPDS, PMS, and H<sub>2</sub>O<sub>2</sub> were utilized to differentiatebetween them. Time-resolved spectrophotometry at 350 nm under optimizedassay conditions was established as a prerequisite for achieving sufficientselectivity and reliable quantification. The assay sensitivities reach7.62 × 10<sup>3</sup> M<sup>–1</sup> (PMS), 7.68 ×10<sup>3</sup> M<sup>–1</sup> (H<sub>2</sub>O<sub>2</sub>),and 4.1 × 10<sup>3</sup> M<sup>–1</sup> (PDS) while thelimit of quantification is 6.6 μM (PMS), 3.9 μM (H<sub>2</sub>O<sub>2</sub>), and 17 μM (PDS). The degree of interferencecaused by coexisting peroxides was thoroughly investigated, and theproposed quantification procedure was successfully applied to realelectrolysis samples. The simplicity and reliability of the developedmethod enables high-throughput screening of electrodes, electrolytes,or reaction conditions and allows quality control of processes.</p>","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"6 10","pages":"6481–6491"},"PeriodicalIF":4.5,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149152988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mechanistic Insights into the Impacts of Microplastics on the Fate of Mercury and Methylmercury in a Simplified Estuarine Model System 微塑料对简化河口模型系统中汞和甲基汞命运影响的机理研究
IF 4.5
ACS ES&T water Pub Date : 2026-10-09 Epub Date: 2026-09-21 DOI: 10.1021/acsestwater.6c00642
Qingxia Zhao, Junfeng He, Ming Liu, Jianliang Sun, Shenyu OuYang, Jinting Wang, Jinxin Liu, Jiahua Guo, Laiguo Chen, Feng Jiang, Yu Li
{"title":"Mechanistic Insights into the Impacts of Microplastics on the Fate of Mercury and Methylmercury in a Simplified Estuarine Model System","authors":"Qingxia Zhao,&nbsp;Junfeng He,&nbsp;Ming Liu,&nbsp;Jianliang Sun,&nbsp;Shenyu OuYang,&nbsp;Jinting Wang,&nbsp;Jinxin Liu,&nbsp;Jiahua Guo,&nbsp;Laiguo Chen,&nbsp;Feng Jiang,&nbsp;Yu Li","doi":"10.1021/acsestwater.6c00642","DOIUrl":"https://doi.org/10.1021/acsestwater.6c00642","url":null,"abstract":"<p>Estuaries are co-pollution hotspots for mercury (Hg)and microplastics(MPs), yet the role of MPs in microbial methylmercury (MeHg) productionremains unclear. Using <em>Geobacter sulfurreducens</em> PCA as a model methylator, we investigated MP-Hg-microbe interactionsin a controlled laboratory system. Both micron- and millimeter-scaleMPs exhibited high inorganic Hg(II) adsorption (80%–97%) withlimited desorption and a pronounced binding preference for Hg(II)over MeHg. Compared to MP-free controls, micron- and millimeter-scaleMPs were associated with 83%–222% and 43%–143% higherMeHg accumulation, respectively, accompanied by size-dependent MeHgphase partitioning. MPs also leached bioavailable dissolved organiccarbon (MP-DOC; 0.20–3.85 mg/g), which was preferentially metabolizedby <em>G. sulfurreducens</em> PCA, and bacteriawere retained on MP surfaces. These results suggest that MPs can functionas conditional biogeochemical microreactors integrating localizedHg(II) enrichment, bioavailable carbon supply, and bacterial surfaceretention, thereby enhancing MeHg formation under the simplified conditionstested. However, the present design cannot distinguish an MP-specificcarbon effect from a general labile carbon effect, nor can resolvethe relative contributions of these pathways. These findings clarifythe multipath mechanisms potentially governing MP-Hg coupling andunderscore the need for validation under environmentally realisticconditions to evaluate coastal MeHg risks.</p>","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"6 10","pages":"6492–6502"},"PeriodicalIF":4.5,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149153073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
From Molecular Designs to Nanomaterials for Electrochemical PFAS Detection: A Review 电化学PFAS检测从分子设计到纳米材料的研究进展
IF 4.5
ACS ES&T water Pub Date : 2026-10-09 Epub Date: 2026-09-07 DOI: 10.1021/acsestwater.6c00585
Wei Xu, Pengyu Xiao, Jiayi Yuan, Zongqiang Zhu, Yifei Wang, Meng Sun
{"title":"From Molecular Designs to Nanomaterials for Electrochemical PFAS Detection: A Review","authors":"Wei Xu,&nbsp;Pengyu Xiao,&nbsp;Jiayi Yuan,&nbsp;Zongqiang Zhu,&nbsp;Yifei Wang,&nbsp;Meng Sun","doi":"10.1021/acsestwater.6c00585","DOIUrl":"https://doi.org/10.1021/acsestwater.6c00585","url":null,"abstract":"<p>Thepervasive occurrence of per- and polyfluoroalkyl substances(PFAS) and the implementation of stringent regulatory guidelines necessitaterapid, highly sensitive analytical methodologies. Although liquidchromatography-tandem mass spectrometry (LC-MS/MS) remains the goldstandard, its complexity and limited portability hinder large-scaleand real-time monitoring. Electrochemical sensing has emerged as apromising alternative. To overcome the intrinsically low electroactivityof PFAS, electrochemical sensing leverages tailored nanomaterial interfacesto convert specific molecular recognition events into measurable electricalsignals. This review systematically elucidates the molecular-levelinteraction mechanisms between trace PFAS and advanced sensing nanomaterials,specifically molecularly imprinted polymers (MIPs), metal–organicframeworks (MOFs), and MXenes. We detail how the unique amphiphilicarchitecture of PFAS is targeted via electrostatic interactions, hydrophobicinteractions, fluorine–fluorine (F···F) interactions,and hydrogen-bonding interactions to achieve highly selective recognition.By integrating adsorption modeling, spectroscopic characterization,and density functional theory (DFT), we establish a multiscale understandingthat links macroscopic sensing behavior to underlying molecular-levelinteractions. Finally, we discuss the critical factors governing sensorperformance and advocate for future research focusing on rationalinterface design, broadening the detection spectrum to emerging alternatives,and translating laboratory prototypes into reliable real-world monitoringdevices.</p>","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"6 10","pages":"6166–6187"},"PeriodicalIF":4.5,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149153117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Rapid Decision Framework for Wastewater and Environmental Surveillance (WES) during Rapidly Emerging and Evolving Outbreak Settings 在快速出现和演变的疫情背景下废水和环境监测快速决策框架(WES)
IF 4.5
ACS ES&T water Pub Date : 2026-10-09 Epub Date: 2026-09-23 DOI: 10.1021/acsestwater.6c01043
Warish Ahmed, Kate Medlicott, Monica Nolan
{"title":"A Rapid Decision Framework for Wastewater and Environmental Surveillance (WES) during Rapidly Emerging and Evolving Outbreak Settings","authors":"Warish Ahmed,&nbsp;Kate Medlicott,&nbsp;Monica Nolan","doi":"10.1021/acsestwater.6c01043","DOIUrl":"https://doi.org/10.1021/acsestwater.6c01043","url":null,"abstract":"","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"6 10","pages":"6100–6102"},"PeriodicalIF":4.5,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149153173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Operationalizing Nitrogen Compliance: A Leakage-Safe, Alarm-Budget Framework for Wastewater Treatment Early Warning 实施氮合规性:一个泄漏安全的警报预算框架,用于废水处理早期预警
IF 4.5
ACS ES&T water Pub Date : 2026-10-09 Epub Date: 2026-09-23 DOI: 10.1021/acsestwater.6c00549
Alireza Mahvelati Shamsabadi, Morteza Mahvelatishamsabadi, Jinwoo Kim, Shokouh Masoumilari, Tejas Ravi Atri, Minwoo Park, Sudong Lee, Daeseung Kyung
{"title":"Operationalizing Nitrogen Compliance: A Leakage-Safe, Alarm-Budget Framework for Wastewater Treatment Early Warning","authors":"Alireza Mahvelati Shamsabadi,&nbsp;Morteza Mahvelatishamsabadi,&nbsp;Jinwoo Kim,&nbsp;Shokouh Masoumilari,&nbsp;Tejas Ravi Atri,&nbsp;Minwoo Park,&nbsp;Sudong Lee,&nbsp;Daeseung Kyung","doi":"10.1021/acsestwater.6c00549","DOIUrl":"https://doi.org/10.1021/acsestwater.6c00549","url":null,"abstract":"<p>We developed a leakage-safe, alarm-budgetframework for early warningof effluent total nitrogen (TN<sub>out</sub>) in a municipal wastewatertreatment plant (WWTP) using multiyear daily records from Ulsan, Republicof Korea. The framework combined strict temporal feature construction,train-only preprocessing, horizon-specific target-date purging, andblocked chronological validation at 1-, 3-, and 5 day lead times.Models were evaluated by point-forecast error; at the 5 day lead,models were additionally assessed under nominal 5% and 10% alarm budgetsthat prioritized the highest-risk days for review at thresholds of15–17 mg L<sup>–1</sup>. No single point model dominatedacross horizons: the lowest pooled mean absolute error (MAE) was 1.546mg L<sup>–1</sup> at 1 day for Persistence, 1.764 mg L<sup>–1</sup> at 3 days for HistGradientBoostingRegressor (HGBR),and 1.773 mg L<sup>–1</sup> at 5 days for Ridge. At the 5 daylead and a threshold of 16 mg L<sup>–1</sup>, retrospectivefold-local ranking captured 18.3% and 31.0% of exceedances at nominal5% and 10% alarm budgets, corresponding to approximately 3.5- and3.1-fold enrichment over random ranking. A fixed rank ensemble remainedcompetitive but did not dominate all operating points. These resultsshow that compliance-oriented wastewater early warning models shouldbe evaluated jointly for temporal validity, forecast accuracy, andbounded-attention decision utility.</p>","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"6 10","pages":"6410–6421"},"PeriodicalIF":4.5,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149152877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Environmental Input and Spatial Connectivity of Perfluoroalkyl Acids (PFAAs) in the Yarlung Tsangpo River 雅鲁藏布江中全氟烷基酸的环境输入与空间连通性
IF 4.5
ACS ES&T water Pub Date : 2026-10-09 Epub Date: 2026-08-28 DOI: 10.1021/acsestwater.6c00787
Huimin Yu, Cong Wang, Xiaoping Wang, Yujun Zhong, Qianqi Wang, Shaoyu Qian, Yi Liu, Wenzu Liu, Yunqiao Zhou, Huike Dong, Shufeng Liu, Ping Gong
{"title":"Environmental Input and Spatial Connectivity of Perfluoroalkyl Acids (PFAAs) in the Yarlung Tsangpo River","authors":"Huimin Yu,&nbsp;Cong Wang,&nbsp;Xiaoping Wang,&nbsp;Yujun Zhong,&nbsp;Qianqi Wang,&nbsp;Shaoyu Qian,&nbsp;Yi Liu,&nbsp;Wenzu Liu,&nbsp;Yunqiao Zhou,&nbsp;Huike Dong,&nbsp;Shufeng Liu,&nbsp;Ping Gong","doi":"10.1021/acsestwater.6c00787","DOIUrl":"https://doi.org/10.1021/acsestwater.6c00787","url":null,"abstract":"<p>Theenvironmental release and redistribution of perfluoroalkylacids (PFAAs) are critical for understanding their cycling in remoteregions, yet the processes governing their fate in riverine systemsremain poorly resolved. Here, we investigate PFAAs along the fullriver continuum of the Yarlung Tsangpo River (YTR), from glacial headwatersto downstream reaches within China. Short-chain PFAAs dominate theupper reaches of the YTR, primarily due to glacial inputs from headwaters,whereas long-chain PFAAs (C8–C10) are enriched in the upperand middle reaches. Multivariate analyses, including self-organizingmaps, spatial autocorrelation, and correlations with water qualityparameters, indicate that long-chain PFAAs are strongly associatedwith suspended particulate matter and exhibit greater spatial connectivityand compositional similarity, likely driven by soil erosion and fluvialtransport. Partial least-squares path modeling (PLS-PM) further highlightsthe important roles of freeze–thaw and wind erosion in mobilizingPFAAs into the river network. These findings underscore the importanceof natural dynamics in driving PFAA inputs and redistribution in remotewatersheds and provide a scientific basis for riverine contaminantmanagement and the development of sustainable mitigation strategies.</p>","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"6 10","pages":"6646–6655"},"PeriodicalIF":4.5,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149153025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hydrophobic Ion Pairing with Cationic Surfactant Modifies Surface Activity and Colloidal Behavior of PFAS 阳离子表面活性剂与疏水离子配对对PFAS表面活性和胶体行为的影响
IF 4.5
ACS ES&T water Pub Date : 2026-10-09 Epub Date: 2026-08-29 DOI: 10.1021/acsestwater.6c00707
Bishnu Pandey, Ligaya Manalastas, Afaq Ahmad, Siwei Gu, William H. Pennock, Arjun K. Venkatesan
{"title":"Hydrophobic Ion Pairing with Cationic Surfactant Modifies Surface Activity and Colloidal Behavior of PFAS","authors":"Bishnu Pandey,&nbsp;Ligaya Manalastas,&nbsp;Afaq Ahmad,&nbsp;Siwei Gu,&nbsp;William H. Pennock,&nbsp;Arjun K. Venkatesan","doi":"10.1021/acsestwater.6c00707","DOIUrl":"https://doi.org/10.1021/acsestwater.6c00707","url":null,"abstract":"<p>Quaternary ammonium compounds (QACs) are increasinglyused to enhancethe removal of per- and polyfluoroalkyl substances (PFAS), particularlyshort-chain compounds, through hydrophobic ion pairing (HIP). Here,we investigated how HIP with cetyltrimethylammonium chloride (CTAC)influences the interfacial and colloidal behavior of selected PFASat low-micromolar concentrations below reported critical micelle concentrations(CMCs) and across varying solution chemistries (pH, ionic strength,and natural organic matter) using surface tension measurements, dynamiclight scattering (DLS), ζ-potential analysis, and transmissionelectron microscopy (TEM). Relative to the corresponding PFAS-onlycontrols, CTAC (6.66 μM) reduced the surface tension of PFBA,PFBS, and PFOA solutions (3.33 μM each) by 24.64, 45.71, and70.17%, respectively. PFOS exhibited little additional surface-tensionresponse to CTAC but responded strongly to a shorter-chain QAC (C12),indicating that interfacial behavior depends on fluorocarbon–hydrocarbonchain-length compatibility. Targeted DLS, ζ-potential, and TEMcharacterization identified detectable bulk coassembly in selectedPFAS–QAC systems at concentrations of 3.33–33.30 μM.Electrolyte addition produced PFAS-dependent changes in interfacialbehavior, while NOM reduced the interfacial activity of several mixtures.These findings provide mechanistic insight into PFAS–QAC behaviorrelevant to the development of QAC-assisted PFAS separation processes.</p>","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"6 10","pages":"6545–6554"},"PeriodicalIF":4.5,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149152983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect-Directed Toxicity Assessment of the Surface Water of Chao Phraya River by Integrating a Panel of Bioluminescent E. coli with ICP-OES and HPLC-DAD 用ICP-OES和HPLC-DAD结合生物发光大肠杆菌面板评价湄南河地表水的效应导向毒性
IF 4.5
ACS ES&T water Pub Date : 2026-10-09 Epub Date: 2026-09-16 DOI: 10.1021/acsestwater.6c00629
Calin Trif, Witthawat Piampowdee, Chiravoot Pechyen, Robert S. Marks, Yardnapar Parcharoen
{"title":"Effect-Directed Toxicity Assessment of the Surface Water of Chao Phraya River by Integrating a Panel of Bioluminescent E. coli with ICP-OES and HPLC-DAD","authors":"Calin Trif,&nbsp;Witthawat Piampowdee,&nbsp;Chiravoot Pechyen,&nbsp;Robert S. Marks,&nbsp;Yardnapar Parcharoen","doi":"10.1021/acsestwater.6c00629","DOIUrl":"https://doi.org/10.1021/acsestwater.6c00629","url":null,"abstract":"<p>This study presents an effect-directed analysis (EDA)combiningInductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES),High-Performance Liquid Chromatography-Diode Array Detection (HPLC-DAD),and five bioluminescent <em>Escherichia coli</em> bioreporters to map surface water toxicity along a 372-km gradientof the Chao Phraya River, Thailand. Evaluating cytotoxicity, genotoxicity,metabolic disturbance, oxidative stress, and quorum sensing via anew Toxic Index (TI) and Dynamic Time Warping (DTW) kinetic alignment,the panel unmasked complex cellular stress gradients. Although ICP-OESrevealed localized mercury spikes (119 μg/L), metals contributedminimally to overall toxicity. Instead, upstream freshwater exhibitedsevere, multi-pathway stress (Total Toxicity Index, TTI ∼ 2.48)statistically associated with trace bioactive organic fractions isolatedvia solid-phase extraction. In complex urban matrices, DTW effectivelyexposed non-monotonic toxicity masking. Conversely, the downstreamestuarine TTI peak (3.06) was identified as an isolated, non-chemicalosmotic shock response driven by extreme salinity (18,710 ppm totaldissolved solids). This integrated framework demonstrates that relyingon bulk chemical quantification inherently underestimates latent ecotoxicologicalhazards, proving the necessity of mechanistic biological diagnosticsto accurately evaluate and protect complex aquatic ecosystems.</p>","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"6 10","pages":"6445–6459"},"PeriodicalIF":4.5,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149153158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ecological Risk of Down-the-Drain Fiproles and Imidacloprid in California Wastewater-Receiving Streams 加州污水接收流中排水口虫和吡虫啉的生态风险
IF 4.5
ACS ES&T water Pub Date : 2026-10-09 Epub Date: 2026-09-28 DOI: 10.1021/acsestwater.6c00554
Denise Adjidjonu, Sara Kamanmalek, Yina Xie, Jacelyn Rice-Boayue
{"title":"Ecological Risk of Down-the-Drain Fiproles and Imidacloprid in California Wastewater-Receiving Streams","authors":"Denise Adjidjonu,&nbsp;Sara Kamanmalek,&nbsp;Yina Xie,&nbsp;Jacelyn Rice-Boayue","doi":"10.1021/acsestwater.6c00554","DOIUrl":"https://doi.org/10.1021/acsestwater.6c00554","url":null,"abstract":"<p>Fipronil and imidacloprid are widelyused urban insecticidesthatenter municipal wastewater through down-the-drain pathways and canoccur in treated effluent above aquatic toxicity thresholds, yet thecapacity of receiving streams to buffer them remains poorly understood.We conducted a screening-level ecological risk assessment for 160wastewater treatment plants discharging to California surface watersby integrating effluent monitoring data with modeled receiving-streamdilution across four flow regimes. Next, we estimated in-stream pesticideconcentrations, calculated risk quotients (RQs) relative to the minimumU.S. Environmental Protection Agency aquatic life benchmark (BM) orbiological evaluation (BE) threshold, and validated modeled concentrationsagainst downstream monitoring within 10 km of discharge points. Undera conservative worst-case scenario (90th percentile statewide effluentconcentrations and maximum effluent flows), RQs exceeded the levelof concern at 32–43% of sites for fipronil and 46–58%for imidacloprid relative to BM, with 0.6–6% of sites for imidaclopridrelative to BE. Exceedances were more prevalent under low-flow conditionsand within smaller streams and may increase with climate-driven streamflowreductions. These findings highlight specific sites that merit furtherstudy. Because modeled treatment upgrades and discharge-timing controlsonly modestly reduced RQ exceedances, source reduction remains essential.</p>","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"6 10","pages":"6400–6409"},"PeriodicalIF":4.5,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149153224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Constructed Wetlands in the Era of Artificial Intelligence: From Algorithm-Driven Processes to Intelligent Ecology 人工智能时代的人工湿地:从算法驱动过程到智能生态
IF 4.5
ACS ES&T water Pub Date : 2026-09-11 Epub Date: 2026-08-28 DOI: 10.1021/acsestwater.6c00678
Fuhao Zhang, Yaqian Zhao, Ting Wei, Cheng Shen, Bin Ji, Ang Liu, Xiaorui Lei, Isis Giovanna Amador-Suárez
{"title":"Constructed Wetlands in the Era of Artificial Intelligence: From Algorithm-Driven Processes to Intelligent Ecology","authors":"Fuhao Zhang,&nbsp;Yaqian Zhao,&nbsp;Ting Wei,&nbsp;Cheng Shen,&nbsp;Bin Ji,&nbsp;Ang Liu,&nbsp;Xiaorui Lei,&nbsp;Isis Giovanna Amador-Suárez","doi":"10.1021/acsestwater.6c00678","DOIUrl":"https://doi.org/10.1021/acsestwater.6c00678","url":null,"abstract":"<p>Artificial intelligence (AI) is increasingly transformingconstructedwetlands (CWs) from conventional treatment systems toward intelligentand adaptive environmental technologies. This review systematicallyevaluates the applications of AI in CWs using literature analysisand effect size analysis, with a focus on algorithm selection, treatmentperformance prediction, process optimization, and system assessment.The analysis identifies major applications of AI in CWs, includingprediction of pollutant removal and treatment performance, optimizationof wetland design and operational parameters, assessment of greenhousegas emissions and emerging pollutants, interpretation of microbialcommunity dynamics, and evaluation of wetland health. Different AIapproaches show distinct advantages for addressing specific CW managementchallenges, highlighting the importance of matching algorithm characteristicswith data types and process complexity. The integration of AI providesnew opportunities to improve the prediction, optimization, monitoring,and adaptive management of CWs while enhancing understanding of complexbiogeochemical processes. However, challenges related to data availabilityand quality, model interpretability, generalizability, and practicalimplementation remain. This review provides a framework for selectingand applying AI technologies in CWs and highlights priorities fordeveloping more intelligent, reliable, and sustainable CW systems.</p>","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"6 9","pages":"5553–5565"},"PeriodicalIF":4.5,"publicationDate":"2026-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148950602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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