Water ResearchPub Date : 2026-08-14DOI: 10.1016/j.watres.2026.126638
Shantanu V Bhide, Stanley B Grant, Kevin McGuire, Karen Prestegaard, Sujay S Kaushal, Andrew J Sekellick, Megan A Rippy, Todd Schenk, Shannon Curtis, Jessus D Gomez-Velez, Erin R Hothckiss, Peter Vikesland
{"title":"Corrigendum to \"Transit time modeling framework for predicting salinization in urban catchments\" [Water Research 297 (2026) 125692].","authors":"Shantanu V Bhide, Stanley B Grant, Kevin McGuire, Karen Prestegaard, Sujay S Kaushal, Andrew J Sekellick, Megan A Rippy, Todd Schenk, Shannon Curtis, Jessus D Gomez-Velez, Erin R Hothckiss, Peter Vikesland","doi":"10.1016/j.watres.2026.126638","DOIUrl":"https://doi.org/10.1016/j.watres.2026.126638","url":null,"abstract":"","PeriodicalId":443,"journal":{"name":"Water Research","volume":" ","pages":"126638"},"PeriodicalIF":12.8,"publicationDate":"2026-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148757036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
Water ResearchPub Date : 2026-08-14DOI: 10.1016/j.watres.2026.126638
Shantanu V. Bhide, Stanley B. Grant, Kevin McGuire, Karen Prestegaard, Sujay S. Kaushal, Andrew J. Sekellick, Megan A. Rippy, Todd Schenk, Shannon Curtis, Jessus D. Gomez-Velez, Erin R. Hothckiss, Peter Vikesland
{"title":"Corrigendum to “Transit time modeling framework for predicting salinization in urban catchments” [Water Research 297 (2026) 125692]","authors":"Shantanu V. Bhide, Stanley B. Grant, Kevin McGuire, Karen Prestegaard, Sujay S. Kaushal, Andrew J. Sekellick, Megan A. Rippy, Todd Schenk, Shannon Curtis, Jessus D. Gomez-Velez, Erin R. Hothckiss, Peter Vikesland","doi":"10.1016/j.watres.2026.126638","DOIUrl":"https://doi.org/10.1016/j.watres.2026.126638","url":null,"abstract":"","PeriodicalId":443,"journal":{"name":"Water Research","volume":"28 1","pages":"126638"},"PeriodicalIF":12.8,"publicationDate":"2026-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148755857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
Water ResearchPub Date : 2026-06-30DOI: 10.1016/j.watres.2026.126380
Bingqing Lu, Xing Wang, Mengxue Liu, Xinglin Lu, Yongze Liu, Juan Li, Jin Jiang, Yi Yang
{"title":"Driving iodine speciation toward iodate limits iodinated disinfection byproducts","authors":"Bingqing Lu, Xing Wang, Mengxue Liu, Xinglin Lu, Yongze Liu, Juan Li, Jin Jiang, Yi Yang","doi":"10.1016/j.watres.2026.126380","DOIUrl":"https://doi.org/10.1016/j.watres.2026.126380","url":null,"abstract":"Disinfection byproducts (DBPs) remain a persistent concern for long-term public health. Among them, iodinated disinfection byproducts (I-DBPs) are especially problematic owing to their higher toxicity. In drinking water treatment, iodide is oxidized to hypoiodous acid (HOI), a highly reactive intermediate that rapidly iodinates NOM and promotes I-DBP formation. This issue is particularly acute during chloramination. Herein, we propose a synergistic disinfection strategy by introducing low-dose peroxymonosulfate (PMS) to the chloramine (NH<ce:inf loc=\"post\">2</ce:inf>Cl) system, aiming to promote the selective transformation of HOI to iodate (IO<ce:inf loc=\"post\">3</ce:inf><ce:sup loc=\"post\">−</ce:sup>) with negligible toxicity and thereby mitigate the formation of I-DBP precursors. Kinetic analyses revealed that PMS significantly accelerates HOI oxidation with second-order rate constants increasing to 10<ce:sup loc=\"post\">2</ce:sup>–10<ce:sup loc=\"post\">4</ce:sup> M<ce:sup loc=\"post\">−1</ce:sup> s<ce:sup loc=\"post\">−1</ce:sup> contrasting with NH<ce:inf loc=\"post\">2</ce:inf>Cl’s lack of oxidant capacity to oxidize HOI. Further investigation using representative phenolic compounds (bisphenol A and 4-methylphenol) demonstrated that PMS effectively scavenges HOI and inhibits iodinated byproduct formation, particularly under neutral to alkaline conditions. Across simulated and real waters, PMS–NH<ce:inf loc=\"post\">2</ce:inf>Cl converts 77–98% of aqueous iodine to IO<ce:inf loc=\"post\">3</ce:inf><ce:sup loc=\"post\">−</ce:sup>, reduces target I-DBP formation by 83–90% and substantially decreased total organic iodine (TOI) at just 20 µM PMS, alongside a 60% decrease in cytotoxicity risk. Notably, this PMS–NH<ce:inf loc=\"post\">2</ce:inf>Cl approach requires only minimal PMS addition and may be readily integrated into existing NH<ce:inf loc=\"post\">2</ce:inf>Cl-based disinfection processes, offering a potentially practical and cost-effective strategy to mitigate organic iodine formation and associated toxicity risks in iodine-rich source water.","PeriodicalId":443,"journal":{"name":"Water Research","volume":"52 1","pages":""},"PeriodicalIF":12.8,"publicationDate":"2026-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148357228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
Water ResearchPub Date : 2026-06-29DOI: 10.1016/j.watres.2026.126383
Ying Zhang, Xiaoci Li, Jean-Marc Chovelon, Yuefei Ji, Lei Zhou
{"title":"Photodegradation of Expectorant Drug Ambroxol in Seawater Environment: Seasonal Impact on a Global Scale","authors":"Ying Zhang, Xiaoci Li, Jean-Marc Chovelon, Yuefei Ji, Lei Zhou","doi":"10.1016/j.watres.2026.126383","DOIUrl":"https://doi.org/10.1016/j.watres.2026.126383","url":null,"abstract":"The ocean is a globally important zone for the photochemical transformation of various organic contaminants. Its unique chemical composition, especially the high concentration of halide ions, can significantly alter the photochemical reactivity and fate of these contaminants. Herein, we systematically investigated the effects of marine constituents on the sunlight-driven photolysis of ambroxol (AMB), an expectorant drug extensively used following COVID-19 pandemic, and assessed its spatiotemporal persistence on a global scale. The results revealed that marine matrix significantly promoted AMB photodegradation in a halide-specific manner, where chloride drove such acceleration via photonucleophilic substitution, while bromide exerted an inhibitory effect. Differing from the pathways in pure water, the marine photolysis of AMB was dominated by photonucleophilic substitution, generating the primary chlorinated product with a substantial formation yield of ∼50.5%. Toxicity evaluation suggested that the halogen exchange reaction reduced the toxicity of the photoproducts, whereas other transformation pathways heightened the environmental risks of AMB. Utilizing the global-scale photolysis model GCSOLAR, this study further indicated that near-surface environmental persistence of AMB was strictly governed by geographic latitude and seasonal dynamics, where environmental half-lives remained minimal (1.24–1.83 h) in equatorial zones while rising to 34.77 h in high-latitude regions during winter. These findings highlighted the critical role of the marine matrix and global spatiotemporal variations in collectively reshaping the transformation landscape and intensifying the ecological risks of typical emerging contaminants.","PeriodicalId":443,"journal":{"name":"Water Research","volume":"36 1","pages":""},"PeriodicalIF":12.8,"publicationDate":"2026-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148357532","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}