{"title":"Chlorate Chemistry From Earth to Mars","authors":"Mang Lin","doi":"10.1029/2025JD045217","DOIUrl":null,"url":null,"abstract":"<p>Isotopic measurements indicate that chlorate and perchlorate form naturally via atmospheric oxidation of chlorine compounds, but detailed mechanisms, particularly for the more reactive chlorate, remain poorly constrained. Chan et al. (2025, https://doi.org/10.1029/2024JD042162) incorporated chlorate and perchlorate chemistry and isotopic fingerprinting into a chemical transport model. Discrepancies between observed and modeled concentrations and isotopic values highlight missing processes especially multiphase reactions of chlorate. The future directions outlined in this commentary may help clarify atmospheric chlorate chemistry and its interaction with other trace species. Given the widespread occurrence of chlorate and perchlorate on Mars, improved understanding of chlorate chemistry will inform their roles in liquid water stability, organic preservation, planetary habitability, and the search of potential Martian biosignatures.</p>","PeriodicalId":15986,"journal":{"name":"Journal of Geophysical Research: Atmospheres","volume":"130 18","pages":""},"PeriodicalIF":3.4000,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2025JD045217","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Geophysical Research: Atmospheres","FirstCategoryId":"89","ListUrlMain":"https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2025JD045217","RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"METEOROLOGY & ATMOSPHERIC SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
Isotopic measurements indicate that chlorate and perchlorate form naturally via atmospheric oxidation of chlorine compounds, but detailed mechanisms, particularly for the more reactive chlorate, remain poorly constrained. Chan et al. (2025, https://doi.org/10.1029/2024JD042162) incorporated chlorate and perchlorate chemistry and isotopic fingerprinting into a chemical transport model. Discrepancies between observed and modeled concentrations and isotopic values highlight missing processes especially multiphase reactions of chlorate. The future directions outlined in this commentary may help clarify atmospheric chlorate chemistry and its interaction with other trace species. Given the widespread occurrence of chlorate and perchlorate on Mars, improved understanding of chlorate chemistry will inform their roles in liquid water stability, organic preservation, planetary habitability, and the search of potential Martian biosignatures.
期刊介绍：
JGR: Atmospheres publishes articles that advance and improve understanding of atmospheric properties and processes, including the interaction of the atmosphere with other components of the Earth system.
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