{"title":"Geochemistry of vegetation fires using levoglucosan: a review","authors":"Chao You, Jing Wang, Xiao Dong, Chao Xu","doi":"10.1007/s10311-025-01826-7","DOIUrl":null,"url":null,"abstract":"<p>Climate change is increasing the frequency of extreme weather events such as vegetation fires. Vegetation fires emissions contain numerous organic compounds that impact the Earth system and human health. Here, we review the sources, stability, transport, degradation and geochemical records of levoglucosan, a dehydration monosaccharide produced by the pyrolysis of cellulose and hemicellulose. Levoglucosan has been detected in aerosols, water, snow and ice, and lake or marine sediments. Analysis of levoglucosan in environmental and geological samples enable the identification of temporal rhythms and detailed features of changes in vegetation fire patterns, ranging from individual events to seasonal to annual scales, up to glacial-interglacial cycles.</p>","PeriodicalId":541,"journal":{"name":"Environmental Chemistry Letters","volume":"1 1","pages":""},"PeriodicalIF":15.0000,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Environmental Chemistry Letters","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1007/s10311-025-01826-7","RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Climate change is increasing the frequency of extreme weather events such as vegetation fires. Vegetation fires emissions contain numerous organic compounds that impact the Earth system and human health. Here, we review the sources, stability, transport, degradation and geochemical records of levoglucosan, a dehydration monosaccharide produced by the pyrolysis of cellulose and hemicellulose. Levoglucosan has been detected in aerosols, water, snow and ice, and lake or marine sediments. Analysis of levoglucosan in environmental and geological samples enable the identification of temporal rhythms and detailed features of changes in vegetation fire patterns, ranging from individual events to seasonal to annual scales, up to glacial-interglacial cycles.
期刊介绍：
Environmental Chemistry Letters explores the intersections of geology, chemistry, physics, and biology. Published articles are of paramount importance to the examination of both natural and engineered environments. The journal features original and review articles of exceptional significance, encompassing topics such as the characterization of natural and impacted environments, the behavior, prevention, treatment, and control of mineral, organic, and radioactive pollutants. It also delves into interfacial studies involving diverse media like soil, sediment, water, air, organisms, and food. Additionally, the journal covers green chemistry, environmentally friendly synthetic pathways, alternative fuels, ecotoxicology, risk assessment, environmental processes and modeling, environmental technologies, remediation and control, and environmental analytical chemistry using biomolecular tools and tracers.
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