Environmental Science & Technology Letters Environ.最新文献

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Mechanistic Insights into Di-2-ethylhexyl Phthalate (DEHP)-Induced Metabolic Disruption: Integrating Gut Hormone Secretion and Metabolomics in Colonic Organoids 邻苯二甲酸二-2-乙基己酯(DEHP)诱导代谢紊乱的机制研究:结肠器官组织中肠道激素分泌与代谢组学的整合
IF 8.9 2区 环境科学与生态学
Environmental Science & Technology Letters Environ. Pub Date : 2024-08-22 DOI: 10.1021/acs.estlett.4c0059310.1021/acs.estlett.4c00593
Siqing Yue, Wangchen Zheng, Chuanbing Fan, Chunrui Wang, Yannan Zhao, Qixian Yuan, Guotao Liu and Meirong Zhao*, 
{"title":"Mechanistic Insights into Di-2-ethylhexyl Phthalate (DEHP)-Induced Metabolic Disruption: Integrating Gut Hormone Secretion and Metabolomics in Colonic Organoids","authors":"Siqing Yue,&nbsp;Wangchen Zheng,&nbsp;Chuanbing Fan,&nbsp;Chunrui Wang,&nbsp;Yannan Zhao,&nbsp;Qixian Yuan,&nbsp;Guotao Liu and Meirong Zhao*,&nbsp;","doi":"10.1021/acs.estlett.4c0059310.1021/acs.estlett.4c00593","DOIUrl":"https://doi.org/10.1021/acs.estlett.4c00593https://doi.org/10.1021/acs.estlett.4c00593","url":null,"abstract":"<p >Di-2-ethylhexyl phthalate (DEHP), an endocrine-disrupting plasticizer, may interfere with insulin signaling and increase diabetes risk at low concentrations. Predominantly ingested through food, DEHP directly impacts the intestines where gut hormones that regulate blood sugar are produced. Colonic organoids, with their realistic three-dimensional structure, provide a more physiologically relevant model. Our study used mouse colonic organoids to investigate dietary DEHP exposure on gut endocrine function. Results showed that low doses of DEHP promoted secretion of glucagon-like peptide-1 (GLP-1), peptide YY (PYY), and gastric inhibitory polypeptide (GIP), while decreasing cholecystokinin (CCK) secretion. DEHP exposure increased cyclic AMP levels, supporting the secretion of GLP-1, PYY, and GIP, which may enhance insulin secretion. Metabolomic analyses indicated decreased arachidonic acid levels, potentially increasing inflammation risk and inhibiting gallbladder contraction. These results suggest DEHP exposure significantly alters gut hormone secretion and metabolism, disrupting glucose regulation. Further research is needed to fully understand these mechanisms and their implications for diabetes risk.</p>","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":null,"pages":null},"PeriodicalIF":8.9,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142159667","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}
引用次数: 0
Enrichment of Organophosphate Esters in the Sea Surface Microlayer from the Atlantic and Southern Oceans 大西洋和南大洋海表微层中有机磷酸酯的富集情况
IF 8.9 2区 环境科学与生态学
Environmental Science & Technology Letters Environ. Pub Date : 2024-08-16 DOI: 10.1021/acs.estlett.4c0063610.1021/acs.estlett.4c00636
Núria Trilla-Prieto, Jon Iriarte, Naiara Berrojalbiz, Gemma Casas, Cristina Sobrino, Maria Vila-Costa, Begoña Jiménez and Jordi Dachs*, 
{"title":"Enrichment of Organophosphate Esters in the Sea Surface Microlayer from the Atlantic and Southern Oceans","authors":"Núria Trilla-Prieto,&nbsp;Jon Iriarte,&nbsp;Naiara Berrojalbiz,&nbsp;Gemma Casas,&nbsp;Cristina Sobrino,&nbsp;Maria Vila-Costa,&nbsp;Begoña Jiménez and Jordi Dachs*,&nbsp;","doi":"10.1021/acs.estlett.4c0063610.1021/acs.estlett.4c00636","DOIUrl":"https://doi.org/10.1021/acs.estlett.4c00636https://doi.org/10.1021/acs.estlett.4c00636","url":null,"abstract":"<p >The sea surface microlayer (SML) is the thin interface between the ocean and the atmosphere, exhibiting an enrichment of hydrophobic and surfactant-like chemicals. Here we report the concentrations of organophosphate esters (OPEs), widely used flame retardants and plasticizers, in the SML and underlying waters from a north–south transect in the Atlantic and Southern Oceans. Generally, concentrations of OPEs in the SML were higher than in the underlying waters. Concentrations in the SML were correlated with the chlorophyll α content for some OPEs, consistent with biogenic surfactants at the SML. The enrichment factors (ratio of concentrations in SML over concentrations in underlying waters) were 5.84 ± 8.97 and 9.10 ± 9.48 for the Atlantic and Southern Oceans, respectively. The average enrichment factors in sea spray aerosols (SSA), estimated using previously reported aerosol-phase concentrations, ranged from 3.69 × 10<sup>4</sup> to 3.33 × 10<sup>6</sup>. These OPE enrichments in SSA are high and suggest that the formation of SSA, mediated by the enrichment in the SML, could be relevant for many semivolatile organic pollutants. Future research is needed to elucidate the variables driving the enrichment in the SML, its large variability, as well as its role in the fate of organic pollutants.</p>","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":null,"pages":null},"PeriodicalIF":8.9,"publicationDate":"2024-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acs.estlett.4c00636","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142159289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Emissions, Chemistry, and the Environmental Impacts of Wildland Fire 野地火灾的排放、化学和环境影响
IF 8.9 2区 环境科学与生态学
Environmental Science & Technology Letters Environ. Pub Date : 2024-08-14 DOI: 10.1021/acs.estlett.4c0061210.1021/acs.estlett.4c00612
Amara L. Holder*,  and , Amy P. Sullivan*, 
{"title":"Emissions, Chemistry, and the Environmental Impacts of Wildland Fire","authors":"Amara L. Holder*,&nbsp; and ,&nbsp;Amy P. Sullivan*,&nbsp;","doi":"10.1021/acs.estlett.4c0061210.1021/acs.estlett.4c00612","DOIUrl":"https://doi.org/10.1021/acs.estlett.4c00612https://doi.org/10.1021/acs.estlett.4c00612","url":null,"abstract":"","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":null,"pages":null},"PeriodicalIF":8.9,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142159359","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}
引用次数: 0
Safe and Just Earth System Boundaries for Novel Entities 新实体的安全和公正的地球系统边界
IF 8.9 2区 环境科学与生态学
Environmental Science & Technology Letters Environ. Pub Date : 2024-08-13 DOI: 10.1021/acs.estlett.4c0051710.1021/acs.estlett.4c00517
Miriam L. Diamond*,  and , Zhanyun Wang, 
{"title":"Safe and Just Earth System Boundaries for Novel Entities","authors":"Miriam L. Diamond*,&nbsp; and ,&nbsp;Zhanyun Wang,&nbsp;","doi":"10.1021/acs.estlett.4c0051710.1021/acs.estlett.4c00517","DOIUrl":"https://doi.org/10.1021/acs.estlett.4c00517https://doi.org/10.1021/acs.estlett.4c00517","url":null,"abstract":"","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":null,"pages":null},"PeriodicalIF":8.9,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141972997","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}
引用次数: 0
Bringing Organophosphate Ester Tris(2,4-di-tert-butylphenyl) Phosphate to the Forefront: A Hidden Threat to the Environment 将有机磷酯三(2,4-二叔丁基苯基)磷酸酯推向前台:对环境的隐性威胁
IF 8.9 2区 环境科学与生态学
Environmental Science & Technology Letters Environ. Pub Date : 2024-08-13 DOI: 10.1021/acs.estlett.4c0054510.1021/acs.estlett.4c00545
Jianjie Chen, Chunzhao Chen*, Jian Chen*, Jian Tang, Yujiao An and Gang Yu, 
{"title":"Bringing Organophosphate Ester Tris(2,4-di-tert-butylphenyl) Phosphate to the Forefront: A Hidden Threat to the Environment","authors":"Jianjie Chen,&nbsp;Chunzhao Chen*,&nbsp;Jian Chen*,&nbsp;Jian Tang,&nbsp;Yujiao An and Gang Yu,&nbsp;","doi":"10.1021/acs.estlett.4c0054510.1021/acs.estlett.4c00545","DOIUrl":"https://doi.org/10.1021/acs.estlett.4c00545https://doi.org/10.1021/acs.estlett.4c00545","url":null,"abstract":"<p >Tris(2,4-di-<i>tert</i>-butylphenyl) phosphite (AO168) is a widely utilized organophosphite antioxidant in the field of plastics. Throughout the production and usage processes, AO168 can undergo oxidation and convert into tris(2,4-di-<i>tert</i>-butylphenyl) phosphate (AO168═O), which has been identified as one of the novel organophosphate esters (OPEs). AO168═O is now extensively present in the environment, with concentrations generally exceeding those of traditional OPEs such as triphenyl phosphate and tri(2-chloroisopropyl) phosphate. Consequently, AO168═O has emerged as a significant concern that is receiving attention from the scientific community. However, there exists some controversy regarding the formation mechanisms and potential risks of AO168═O. This Review provides a comprehensive overview for the first time of the environmental occurrence, formation pathways, toxicities, and risks linked to AO168═O, aiming to assist researchers and policymakers in obtaining an unbiased description of its potential impacts on both the environment and human health. Given numerous unresolved aspects surrounding AO168═O along with its wide occurrence, greater attention should be devoted to this emerging contaminant.</p>","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":null,"pages":null},"PeriodicalIF":8.9,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142159396","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}
引用次数: 0
Enhanced Organic Nitrate Formation from Peroxy Radicals in the Condensed Phase 凝结相中过氧自由基对有机硝酸盐形成的促进作用
IF 8.9 2区 环境科学与生态学
Environmental Science & Technology Letters Environ. Pub Date : 2024-08-13 DOI: 10.1021/acs.estlett.4c0047310.1021/acs.estlett.4c00473
Victoria P. Barber*, Lexy N. LeMar, Yaowei Li, Jonathan W. Zheng, Frank N. Keutsch and Jesse H. Kroll*, 
{"title":"Enhanced Organic Nitrate Formation from Peroxy Radicals in the Condensed Phase","authors":"Victoria P. Barber*,&nbsp;Lexy N. LeMar,&nbsp;Yaowei Li,&nbsp;Jonathan W. Zheng,&nbsp;Frank N. Keutsch and Jesse H. Kroll*,&nbsp;","doi":"10.1021/acs.estlett.4c0047310.1021/acs.estlett.4c00473","DOIUrl":"https://doi.org/10.1021/acs.estlett.4c00473https://doi.org/10.1021/acs.estlett.4c00473","url":null,"abstract":"<p >Organic alkoxy (RO) and peroxy (RO<sub>2</sub>) radicals are key intermediates in multiphase atmospheric oxidation chemistry, though most of the study of their chemistry has focused on the gas phase. To better understand how radical chemistry may vary across different phases, we examine the chemistry of a model system, the 1-pentoxy radical, in three phases: the aqueous phase, the condensed organic phase, and the gas phase. In each phase, we generate the 1-pentoxy radical from the photolysis of <i>n</i>-pentyl nitrite, run the chemistry under conditions in which RO<sub>2</sub> radicals react with NO, and detect the products in real time using an ammonium chemical ionization mass spectrometer (NH<sub>4</sub><sup>+</sup> CIMS). The condensed-phase chemistry shows an increase in formation of organic nitrate (RONO<sub>2</sub>) from the downstream RO<sub>2</sub>+NO reaction, which is attributed to potential collisional and solvent-cage stabilization of the RO<sub>2</sub>–NO complex. We further observe an enhancement in the yield of carbonyl relative to hydroxy carbonyl products in the condensed phase, indicating changes to RO radical kinetics. The different branching ratios in the condensed phase impact the product volatility distribution as well as HO<sub><i>x</i></sub>-NO<sub><i>x</i></sub> chemistry, and may have implications for nitrate formation, aqueous aerosol formation, and radical cycling within atmospheric particles and droplets.</p>","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":null,"pages":null},"PeriodicalIF":8.9,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acs.estlett.4c00473","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142159410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Catalytic Heaters at Oil and Gas Sites May be a Significant yet Overlooked Seasonal Source of Methane Emissions 油气田催化加热器可能是一个重要但被忽视的季节性甲烷排放源
IF 8.9 2区 环境科学与生态学
Environmental Science & Technology Letters Environ. Pub Date : 2024-08-12 DOI: 10.1021/acs.estlett.4c0045310.1021/acs.estlett.4c00453
Simon A. Festa-Bianchet, Milad Mohammadikharkeshi, David R. Tyner and Matthew R. Johnson*, 
{"title":"Catalytic Heaters at Oil and Gas Sites May be a Significant yet Overlooked Seasonal Source of Methane Emissions","authors":"Simon A. Festa-Bianchet,&nbsp;Milad Mohammadikharkeshi,&nbsp;David R. Tyner and Matthew R. Johnson*,&nbsp;","doi":"10.1021/acs.estlett.4c0045310.1021/acs.estlett.4c00453","DOIUrl":"https://doi.org/10.1021/acs.estlett.4c00453https://doi.org/10.1021/acs.estlett.4c00453","url":null,"abstract":"<p >Successful reduction of oil and gas sector methane emissions to meet near-zero intensity targets requires the identification and mitigation of all possible sources. One potentially important source is catalytic heaters, which have largely escaped attention in regulatory and mitigation efforts despite being ubiquitous at upstream production sites in cold climate regions. This study reports direct in situ measurements of the exhaust streams of 38 natural gas-fired catalytic heaters at upstream production sites in British Columbia, Canada. All heaters in the sample showed consistently poor methane conversion with mean destruction efficiencies of 61 ± 5% while releasing 235 [+31/–28] g of methane per cubic meter of fuel. Although individual units are generally small methane sources (mean of 0.28 ± 0.04 kg/h), their prevalence means they could represent 6% of the total provincial upstream methane inventory and as an aggregate methane source could be 5× more significant than abandoned wells. Notably, these heaters are seasonal sources whose emissions would be missed in measurement campaigns occurring solely in summer months. However, additional measurements from a small number of heat medium burners demonstrate that, where feasible, methane emissions can be reduced by approximately 425× by replacing catalytic heaters with centralized heat systems.</p>","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":null,"pages":null},"PeriodicalIF":8.9,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acs.estlett.4c00453","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142159585","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
From Grave to Cradle: Treatment, Resource Recycling, and Valorization of Phosphogypsum Wastes 从坟墓到摇篮:磷石膏废物的处理、资源再循环和价值评估
IF 8.9 2区 环境科学与生态学
Environmental Science & Technology Letters Environ. Pub Date : 2024-08-12 DOI: 10.1021/acs.estlett.4c0053010.1021/acs.estlett.4c00530
Xiang-Yang Lou, Jiaxin Liang, Shan Liu, Jingfu Wang* and Hong Chen*, 
{"title":"From Grave to Cradle: Treatment, Resource Recycling, and Valorization of Phosphogypsum Wastes","authors":"Xiang-Yang Lou,&nbsp;Jiaxin Liang,&nbsp;Shan Liu,&nbsp;Jingfu Wang* and Hong Chen*,&nbsp;","doi":"10.1021/acs.estlett.4c0053010.1021/acs.estlett.4c00530","DOIUrl":"https://doi.org/10.1021/acs.estlett.4c00530https://doi.org/10.1021/acs.estlett.4c00530","url":null,"abstract":"<p >Phosphogypsum (PG) wastes, including solid-state PG and liquid-state PG leachate, are industrial byproducts generated during the production of phosphoric acid. It is of great concern due to the large-scale product accumulation and environmental and geological hazards. Harmless treatment and green chemical resource utilization techniques emerge to be the critical solutions for solving the PG waste problem. This review aims to comprehensively summarize the recent advances in harmless treatment, resource recovery, and valorization of PG wastes. The technique advancements regarding the harmless treatment, decontamination, and valorization of solid-state PG waste with different physical, chemical, thermal, and biological approaches are summarized. Additionally, the comprehensive physical chemistry mechanisms underneath the treatment and valorization strategies for PG leachate have also been discussed. For future work, the challenges and perspectives for resource utilization of solid-state PG and leachate are highlighted. With the systematic information on these aspects, we expect this review will serve as a guideline for the young generations working on PG waste treatment and resource recovery.</p>","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":null,"pages":null},"PeriodicalIF":8.9,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142159590","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}
引用次数: 0
Advancing Source Tracking: Systematic Review and Source-Specific Genome Database Curation of Fecally Shed Prokaryotes 推进源追踪:粪便脱落原核生物的系统回顾和特定来源基因组数据库整理
IF 8.9 2区 环境科学与生态学
Environmental Science & Technology Letters Environ. Pub Date : 2024-08-07 DOI: 10.1021/acs.estlett.4c0023310.1021/acs.estlett.4c00233
Blake G. Lindner, Rakin A. Choudhury, Princess Pinamang, Lilia Bingham, Isabelle D’Amico, Janet K. Hatt, Konstantinos T. Konstantinidis and Katherine E. Graham*, 
{"title":"Advancing Source Tracking: Systematic Review and Source-Specific Genome Database Curation of Fecally Shed Prokaryotes","authors":"Blake G. Lindner,&nbsp;Rakin A. Choudhury,&nbsp;Princess Pinamang,&nbsp;Lilia Bingham,&nbsp;Isabelle D’Amico,&nbsp;Janet K. Hatt,&nbsp;Konstantinos T. Konstantinidis and Katherine E. Graham*,&nbsp;","doi":"10.1021/acs.estlett.4c0023310.1021/acs.estlett.4c00233","DOIUrl":"https://doi.org/10.1021/acs.estlett.4c00233https://doi.org/10.1021/acs.estlett.4c00233","url":null,"abstract":"<p >Advancements within fecal source tracking (FST) studies are complicated by a lack of knowledge regarding the genetic content and distribution of fecally shed microbial populations. To address this gap, we performed a systematic literature review and curated a large collection of genomes (n = 26,018) representing fecally shed prokaryotic species across broad and narrow source categories commonly implicated in FST studies of recreational waters (i.e., cats, dogs, cows, seagulls, chickens, pigs, birds, ruminants, human feces, and wastewater). We find that across these sources the total number of prokaryotic genomes recovered from materials meeting our initial inclusion criteria varied substantially across fecal sources: from none in seagulls to 9,085 in pigs. We examined genome sequences recovered from these metagenomic and isolation-based studies extensively via comparative genomic approaches to characterize trends across source categories and produce a finalized genome database for each source category which is available online (n = 12,730). On average, 81% of the genomes representing species-level populations occur only within a single source. Using fecal slurries to test the performance of each source database, we report read capture rates that vary with fecal source alpha diversity and database size. We expect this resource to be useful to FST-related objectives, One Health research, and sanitation efforts globally.</p>","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":null,"pages":null},"PeriodicalIF":8.9,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acs.estlett.4c00233","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142159790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Formation of Inorganic Sulfate and Volatile Nonsulfated Products from Heterogeneous Hydroxyl Radical Oxidation of 2-Methyltetrol Sulfate Aerosols: Mechanisms and Atmospheric Implications 2-甲基四醇硫酸盐气溶胶的异质羟基自由基氧化作用形成无机硫酸盐和挥发性非硫酸盐产物:机理和对大气的影响
IF 8.9 2区 环境科学与生态学
Environmental Science & Technology Letters Environ. Pub Date : 2024-08-07 DOI: 10.1021/acs.estlett.4c0045110.1021/acs.estlett.4c00451
Rongshuang Xu, Yuzhi Chen, Sze In Madeleine Ng, Zhenfa Zhang, Avram Gold, Barbara J. Turpin, Andrew P. Ault*, Jason D. Surratt* and Man Nin Chan*, 
{"title":"Formation of Inorganic Sulfate and Volatile Nonsulfated Products from Heterogeneous Hydroxyl Radical Oxidation of 2-Methyltetrol Sulfate Aerosols: Mechanisms and Atmospheric Implications","authors":"Rongshuang Xu,&nbsp;Yuzhi Chen,&nbsp;Sze In Madeleine Ng,&nbsp;Zhenfa Zhang,&nbsp;Avram Gold,&nbsp;Barbara J. Turpin,&nbsp;Andrew P. Ault*,&nbsp;Jason D. Surratt* and Man Nin Chan*,&nbsp;","doi":"10.1021/acs.estlett.4c0045110.1021/acs.estlett.4c00451","DOIUrl":"https://doi.org/10.1021/acs.estlett.4c00451https://doi.org/10.1021/acs.estlett.4c00451","url":null,"abstract":"<p >Chemical transformation of 2-methyltetrol sulfates (2-MTS), key isoprene-derived secondary organic aerosol (SOA) constituents, through heterogeneous hydroxyl radical (<sup>•</sup>OH) oxidation can result in the formation of previously unidentified atmospheric organosulfates (OSs). However, detected OSs cannot fully account for the sulfur content released from reacted 2-MTS, indicating the existence of sulfur in forms other than OSs such as inorganic sulfates. This work investigated the formation of inorganic sulfates through heterogeneous <sup>•</sup>OH oxidation of 2-MTS aerosols. Remarkably, high yields of inorganic sulfates, defined as the moles of inorganic sulfates produced per mole of reacted 2-MTS, were observed in the range from 0.48 ± 0.07 to 0.68 ± 0.07. These could be explained by the production of sulfate (SO<sub>4</sub><sup>•–</sup>) and sulfite (SO<sub>3</sub><sup>•–</sup>) radicals through the cleavage of C–O(S) and (C)O–S bonds, followed by aerosol-phase reactions. Additionally, nonsulfated products resulting from bond cleavage were likely volatile and evaporated into the gas phase, as evidenced by the observed aerosol mass loss (≤25%) and concurrent size reduction upon oxidation. This investigation highlights the significant transformation of sulfur from its organic to inorganic forms during the heterogeneous oxidation of 2-MTS aerosols, potentially influencing the physicochemical properties and environmental impacts of isoprene-derived SOAs.</p>","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":null,"pages":null},"PeriodicalIF":8.9,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acs.estlett.4c00451","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142159793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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