Environmental Science & Technology Letters Environ.最新文献_第3页

Contrasting Cellular Reactive Oxygen Species Modulation by α-Dicarbonyl Aqueous Reaction Products via Interactions with Redox-Active Particulate Matter α-二羰基水溶液反应产物与氧化还原活性颗粒物质相互作用对细胞活性氧调节的影响

IF 7.3 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2026-10-13 Epub Date: 2026-08-31 DOI: 10.1021/acs.estlett.6c00722

Yujing Wang, Yulong Pang, Lulu Yang, Xin Zhang, Chi He, Yuemei Han, Guanying Li, Fobang Liu

{"title":"Contrasting Cellular Reactive Oxygen Species Modulation by α-Dicarbonyl Aqueous Reaction Products via Interactions with Redox-Active Particulate Matter","authors":"Yujing Wang, Yulong Pang, Lulu Yang, Xin Zhang, Chi He, Yuemei Han, Guanying Li, Fobang Liu","doi":"10.1021/acs.estlett.6c00722","DOIUrl":"https://doi.org/10.1021/acs.estlett.6c00722","url":null,"abstract":"Atmospheric fine particulate matter (PM) poses substantialhealthrisks, largely through oxidative stress associated with particle-inducedreactive oxygen species (ROS). Although aqueous-phase reactions playan important role in the chemical aging of PM, the effects of theirsecondary organic products on cellular ROS responses remain poorlyunderstood. Here, we examine products formed from aqueous reactionsbetween α-dicarbonyls (glyoxal or methylglyoxal) and reducednitrogen species (ammonium sulfate or glycine) and evaluate theireffects on ROS production in A549 cells. High-resolution mass spectrometryshows that reactions involving ammonium predominantly yield imidazole-typenitrogen-heterocycle compounds, whereas reactions with glycine producea larger fraction of pyrrole-related species. These products inducelittle cellular ROS when tested alone but show contrasting effectswhen coexposed with 1,4-naphthoquinone, Cu2+, or both.Mixtures dominated by imidazole are associated with enhanced ROS responses,while mixtures with a higher pyrrole fraction tend to suppress ROSproduction. Complementary acellular assays suggest that these contrastingeffects likely reflect differences in redox interactions, includingpromotion or suppression of quinone cycling and metal-associated processes.Overall, these results indicate that aqueous-phase secondary organicproducts can influence oxidative stress through interactions withother redox-active PM components, underscoring the importance of molecularcomposition and mixture effects in PM health assessments.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"13 10","pages":"1327–1334"},"PeriodicalIF":7.3,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149173373","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

Bromine Escape Can Offset the Health Benefits of Mercury Emission Control Using Bromine Injection Technology 溴逸出可以抵消使用溴注射技术控制汞排放的健康效益

IF 7.3 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2026-10-13 Epub Date: 2026-10-05 DOI: 10.1021/acs.estlett.6c00765

Xianyi Sun, Xiao Fu, Chuang Qin, Dan Tong, Qingru Wu, Alfonso Saiz-Lopez, Shuxiao Wang

{"title":"Bromine Escape Can Offset the Health Benefits of Mercury Emission Control Using Bromine Injection Technology","authors":"Xianyi Sun, Xiao Fu, Chuang Qin, Dan Tong, Qingru Wu, Alfonso Saiz-Lopez, Shuxiao Wang","doi":"10.1021/acs.estlett.6c00765","DOIUrl":"https://doi.org/10.1021/acs.estlett.6c00765","url":null,"abstract":"Coal-fired power plants (CFPPs) are one of the largestcontributorsto anthropogenic mercury (Hg) emissions, which are regulated underthe Minamata Convention on Mercury. Bromine injectiontechnology has been recognized as an effective strategy for reducingmercury emissions. However, the comprehensive environmental impactsof potential bromine (Br) escape using this technology remain unexplored.This study evaluates the possible effects of using bromine injectiontechnology on Hg and Br emissions into the atmosphere, Hg cycle, andHg-related health effects. Our results indicate that this Hg controltechnology would increase Br emissions and consequently acceleratelocal Hg oxidation and deposition, thereby partially offsetting thehealth benefits from reduced Hg emissions. At bromine injection dosagesof 30–120 mg kg–1 coal, CFPPs Hg emissionsdecrease by 101.9–188.8 Mg yr–1, but bromineescape increases CFPPs Br emissions by 30.8–123.2 Gg yr–1. At the highest dosage, the Br-escape-driven chemicaleffect yields a global increase of 2804 premature cardiovascular deathsand 7.48 × 105 newborn IQ-point loss. Therefore, wehighlight that the substantial impacts of Br escape as well as itscontrol must be carefully considered before bromine-based Hg emissioncontrol technology is applied.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"13 10","pages":"1382–1389"},"PeriodicalIF":7.3,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149173406","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

Pulsed Exposure to Environmentally Relevant Concentrations of 6PPD-Q Elicits Concentration-Dependent Delayed Mortality and Prolonged Behavioral Impairment in Rainbow Trout 脉冲暴露于环境相关浓度的6PPD-Q引发虹鳟鱼浓度依赖性延迟死亡和长期行为损伤

IF 7.3 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2026-10-13 Epub Date: 2026-09-22 DOI: 10.1021/acs.estlett.6c00717

Ruomiao Yang, Huizhen Li, Bryan W. Brooks, Jing You

{"title":"Pulsed Exposure to Environmentally Relevant Concentrations of 6PPD-Q Elicits Concentration-Dependent Delayed Mortality and Prolonged Behavioral Impairment in Rainbow Trout","authors":"Ruomiao Yang, Huizhen Li, Bryan W. Brooks, Jing You","doi":"10.1021/acs.estlett.6c00717","DOIUrl":"https://doi.org/10.1021/acs.estlett.6c00717","url":null,"abstract":"The tire rubber transformation productN-(1,3-dimethylbutyl)-N′-phenyl-p-phenylenediamine-quinone(6PPD-Q) is acutely toxic to select salmonids, yet current risk thresholdsare derived exclusively from constant-concentration exposure teststhat fail to represent the intermittent, rainfall-driven pulses patternsof urban runoff to surface waters. Here, we exposed rainbow troutto four 8-h pulses of 6PPD-Q at environmental relevant concentrations(0.125–1.95 μg/L), followed by a 14-d recovery period.The resulting multiple-pulsed LC50 (0.28 μg/L) wassignificantly lower than thresholds from standard constant-exposurebioassays. Notably, substantial delayed mortality occurred duringrecovery, and environmental pulses of 6PPD-Q frequently reached orexceeded levels triggering such delayed mortality. Distinct lethalphenotypes were observed across the four successive pulses and therecovery period, suggesting differential disposition and/or toxicitypathways influence each stage. Furthermore, surviving fish exhibitedsignificant behavioral impairments even after the 14-d recovery period,indicating prolonged sublethal impacts. Collectively, our findingsdemonstrated that environmentally realistic pulsed exposure regimesand delayed toxicity are critical yet overlooked components of ecologicalrisk for 6PPD-Q, and should be considered to support more environmentallyrealistic assessment of 6PPD-Q hazards in urban watersheds.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"13 10","pages":"1320–1326"},"PeriodicalIF":7.3,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149173537","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

Unexpectedly High Levels of Environmentally Persistent Free Radicals in Barbecued Foods: An Overlooked Source 烧烤食品中意外高水平的环境持久性自由基：一个被忽视的来源

IF 7.3 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2026-10-13 Epub Date: 2026-09-23 DOI: 10.1021/acs.estlett.6c00646

Wei Du, Xinyi Zhou, Su Jiang, Nan Fu, Ying Gu, Zehua Yan, Jinfeng Zhao, Qi Wang, Guofeng Shen, Lu Zhang, Shu Tao

{"title":"Unexpectedly High Levels of Environmentally Persistent Free Radicals in Barbecued Foods: An Overlooked Source","authors":"Wei Du, Xinyi Zhou, Su Jiang, Nan Fu, Ying Gu, Zehua Yan, Jinfeng Zhao, Qi Wang, Guofeng Shen, Lu Zhang, Shu Tao","doi":"10.1021/acs.estlett.6c00646","DOIUrl":"https://doi.org/10.1021/acs.estlett.6c00646","url":null,"abstract":"Environmentally persistent free radicals (EPFRs) arerecognizedoxidative stressors, but existing research focuses predominantly oninhalable particles. Thermally carbonized foods represent a potentiallymajor, yet unexplored, dietary EPFR pathway. Here, we quantified EPFRsin commercial barbecued foods and conducted controlled experimentsto identify thermal, heating-source, and matrix factors governingtheir formation. Barbecued foods exhibited high EPFR levels (1.7 ×1016–6.3 × 1018 spins/g), 2–3orders of magnitude higher than previously reported values for fried/steamedfoods. Controlled experiments revealed EPFR formation as a nonlinearthermal process governed mainly by temperature and food matrix withyields increasing up to 3-fold from 80 to 200 °C. Heating-sourceeffects were matrix-dependent, as charcoal grilling produced ∼9-foldhigher EPFRs of (3.6 ± 0.4) × 1018 spins/g thanelectric heating in lipid-rich meats, but only ∼2-fold higherlevelsin vegetables, indicating matrix-driven carbonization and combustion-derivedcontributions. Oxidative potential correlated positively with EPFRsand polycyclic aromatic hydrocarbons rather than trace elements, suggestingEPFRs and coformed redox-active organic mixtures drive oxidative burden.Combined with a dietary survey, the estimated burden is 2.1 ×1020 spins per barbecued meal for a 65 kg adult. Thesefindings highlight thermally carbonized matrices as under-characterizedEPFR sources with significant dietary implications.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"13 10","pages":"1307–1313"},"PeriodicalIF":7.3,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149173616","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

Storm-Driven Mobilization of Urban Sewer Resistomes: From Hidden Reservoirs to Surface Exposure Interfaces 城市下水道阻力体的风暴驱动动员：从隐藏的水库到地表暴露的界面

IF 7.3 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2026-10-13 Epub Date: 2026-09-07 DOI: 10.1021/acs.estlett.6c00702

Jun Hong, Kaifeng Yu, Dafeng Xu, Zonglin Weng, Jun Wu, Yan Ma, Peng Li, Yiliang He

{"title":"Storm-Driven Mobilization of Urban Sewer Resistomes: From Hidden Reservoirs to Surface Exposure Interfaces","authors":"Jun Hong, Kaifeng Yu, Dafeng Xu, Zonglin Weng, Jun Wu, Yan Ma, Peng Li, Yiliang He","doi":"10.1021/acs.estlett.6c00702","DOIUrl":"https://doi.org/10.1021/acs.estlett.6c00702","url":null,"abstract":"Urbansewer networks may be an underquantified source of environmentalantibiotic resistance genes (ARGs), as ARG-bearing biomass, extracellularDNA, mobile genetic elements, and particle-associated material accumulatein wastewater, biofilms, and deposits before wet-weather release.Climate-driven intensification of heavy rainfall may enhance overflow,surcharging, flooding, and hydraulic connectivity between sewers andsurface waters, increasing episodic ARG export. Here we synthesizecurrent evidence using a coupled source–storage, mobilization–routing,and fate–exposure framework. Rainfall can detach biofilms,erode deposits, redistribute intracellular and extracellular ARGsbetween freely suspended and particle-associated states, and increaseevent loads even when concentrations decline through dilution. However,field studies rarely quantify antecedent stocks, release thresholds,hydrograph-resolved fluxes, source contributions, decay, or exposuredose. We therefore identify the state variables, rate functions, andmeasurements needed to couple sewer hydraulics, particle transport,microbial ecology, molecular surveillance, and exposure assessment.Reframing storm-associated antimicrobial resistance as a compartmentalmass-balance and transport problem can move the field from occurrencemapping toward prediction of peak concentrations, event loads, depositionhotspots, persistence, and exposure likelihood in climate-stressedurban watersheds.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"13 10","pages":"1289–1299"},"PeriodicalIF":7.3,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149173689","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

Atmospheric Amino Acids under Lockdown: The Glycine-to-Alanine Ratio as a Source Indicator 封锁下的大气氨基酸：甘氨酸与丙氨酸的比率作为来源指标

IF 7.3 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2026-10-13 Epub Date: 2026-07-30 DOI: 10.1021/acs.estlett.6c00403

Ke Xin, Junjun Deng, Ping Li, Qingzi Zhao, Xiaoli Fu, Libin Wu, Wei Hu, Mingjin Tang, Senchao Lai, Pingqing Fu

{"title":"Atmospheric Amino Acids under Lockdown: The Glycine-to-Alanine Ratio as a Source Indicator","authors":"Ke Xin, Junjun Deng, Ping Li, Qingzi Zhao, Xiaoli Fu, Libin Wu, Wei Hu, Mingjin Tang, Senchao Lai, Pingqing Fu","doi":"10.1021/acs.estlett.6c00403","DOIUrl":"https://doi.org/10.1021/acs.estlett.6c00403","url":null,"abstract":"Primary emissions and secondary formation are potentialsourcesof free amino acids (FAAs) in atmospheric aerosols, but their relativeimportance and governing mechanisms remain unclear. Leveraging COVID-19lockdown as a natural experiment with reduced primary emissions andvariable atmospheric oxidation, we investigated FAA sources and evolutionin PM2.5 in Beijing. Neutral glycine consistently dominated,forming primarily via secondary aqueous-phase processes driven byrelative humidity and aerosol liquid water content, especially inwinter. In spring, the level of hydrophilic FAAs increased but acid–basechemistry enriched basic amino acids with sharp aerosol pH shifts,unlike pure plant-derived enhancement. Hydrophobic alanine, secondto glycine, became dominant under enhanced primary dust/combustionevents, matching glycine-to-alanine (Gly/Ala) spatial ratio decreases:city-to-rural with primary anthropogenic emissions and backgroundwith primary productivity. Our findings demonstrate that FAA profilesprovide a useful indicator of both source shifts and aerosol physicochemicalprocessing, offering critical insights into the atmospheric nitrogencycle.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"13 10","pages":"1349–1357"},"PeriodicalIF":7.3,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149173302","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

Kinetics, Mechanisms, and Particle Formation from Gas-Phase OH Oxidation of 2-Methylthiobenzothiazole 2-甲基噻唑苯并噻唑气相氧化的动力学、机理和颗粒形成

IF 7.3 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2026-10-13 Epub Date: 2026-09-30 DOI: 10.1021/acs.estlett.6c00724

Weihong Wang, Barbara J. Finlayson-Pitts

{"title":"Kinetics, Mechanisms, and Particle Formation from Gas-Phase OH Oxidation of 2-Methylthiobenzothiazole","authors":"Weihong Wang, Barbara J. Finlayson-Pitts","doi":"10.1021/acs.estlett.6c00724","DOIUrl":"https://doi.org/10.1021/acs.estlett.6c00724","url":null,"abstract":"Benzothiazole (BTH) derivatives are used widely. In particular,2-methylthiobenzothiazole (2-MeS-BTH), used in rubber products andtextiles and formed in the degradation of other BTH compounds, isfound in air, particles, and water systems. In air, it reacts withOH radicals. We report here the first studies of the kinetics, products,and mechanisms of the gas-phase reaction of OH with 2-MeS-BTH. Relativerate studies carried out in air at 1 atm and 298 K give a rate constantfor 2-MeS-BTH reaction with OH of (5.4 ± 0.9) × 10–12 cm3 molecule–1 s–1 (1σ), indicating a lifetime of ∼2 days in air at 1× 106 cm–3 OH. The reaction proceedsthrough (1) the abstraction of hydrogen atoms from the thiomethylgroup, (2) the addition of OH to the thiomethyl sulfur atom, and (3)the addition of OH to benzene ring as a minor path. Sulfuric acidand benzothiazole-2-sulfonic acid are major products, contributingto particle formation. This is consistent with contributions fromthe oxidation of SO2 formed in the reaction as well asthe direct formation of SO3 in the oxidation pathways.Thus, not only the parent compound but also its oxidation productsshould be included in assessments of 2-MeS-BTH environmental impacts.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"13 10","pages":"1366–1374"},"PeriodicalIF":7.3,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149174029","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

Chemical Identification and Environmental Fate of Fluorescein during Celebratory Surface Water Dyeing: A Field Evaluation in the Chicago River 芝加哥河表面水染色过程中荧光素的化学鉴定和环境命运：现场评价

IF 7.3 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2026-10-13 Epub Date: 2026-09-09 DOI: 10.1021/acs.estlett.6c00757

Gordon J. Getzinger, Lauryn H. Duffee

引用次数: 0

Occurrence of Ultra-Short Chain PFASs in Bottled Beverages and New Jersey Tap Water 瓶装饮料和新泽西州自来水中超短链PFASs的出现

IF 7.3 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2026-10-13 Epub Date: 2026-09-12 DOI: 10.1021/acs.estlett.6c00768

Siwei Gu, Santhoshi Chitthaluri, Ebenezer Etsiwah, Bishnu Pandey, Arjun K. Venkatesan

{"title":"Occurrence of Ultra-Short Chain PFASs in Bottled Beverages and New Jersey Tap Water","authors":"Siwei Gu, Santhoshi Chitthaluri, Ebenezer Etsiwah, Bishnu Pandey, Arjun K. Venkatesan","doi":"10.1021/acs.estlett.6c00768","DOIUrl":"https://doi.org/10.1021/acs.estlett.6c00768","url":null,"abstract":"Ultra-short-chain per- and polyfluoroalkyl substances(PFASs) arehighly mobile, persistent, and difficult to monitor using conventionalPFAS workflows, leaving their occurrence in bottled beverages andtap water poorly characterized. We screened five ultra-short-chainPFASs [trifluoroacetic acid (TFA), perfluoropropanoic acid (PFPrA),perfluoromethanesulfonic acid (PFMeS), perfluoroethanesulfonic acid(PFEtS), and perfluoropropanesulfonic acid (PFPrS)] in 113 samples:43 bottled beverages and 70 New Jersey tap water samples across 21counties. TFA was the dominant analyte, with a detection frequency(DF) of 86.7% across all samples analyzed. PFPrA (DF, 23.9%), PFEtS(DF, 11.5%), and PFPrS (DF, 9.73%) were detected less frequently,with concentrations ranging from 2.60 to 7640 ng L–1. PFMeS was not detected. The concentration of TFA ranged from 74.0to 1360 ng L–1 (DF, 91.4%) in tap water and from59.6 to 94 100 ng L–1 (DF, 79.1%) in bottledbeverages. Among bottled beverages, formulated beverages (n = 12; 15 400 ng L–1) containedsubstantially higher mean TFA concentrations than bottled water (n = 31; 295 ng L–1), a 52.2-fold difference.As the first statewide monitoring study of ultra-short-chain PFASsin the United States, this work demonstrates widespread TFA occurrenceand supports the need for coordinated nationwide surveys.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"13 10","pages":"1418–1423"},"PeriodicalIF":7.3,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149173404","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

In Situ Collection and Photochemical Aging of Individual Ship Plumes Captured at Sea 海上捕获的单个船舶羽流的原位收集和光化学老化

IF 7.3 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2026-10-13 Epub Date: 2026-09-08 DOI: 10.1021/acs.estlett.6c00695

Sandra K. Piel, Thomas M. Gröger, Hendryk Czech, Haseeb Hakkim, Johannes Passig, Jan Hovorka, Helena Osterholz, Michal Vojtisek-Lom, Thomas W. Adam, Ralf Zimmermann

{"title":"In Situ Collection and Photochemical Aging of Individual Ship Plumes Captured at Sea","authors":"Sandra K. Piel, Thomas M. Gröger, Hendryk Czech, Haseeb Hakkim, Johannes Passig, Jan Hovorka, Helena Osterholz, Michal Vojtisek-Lom, Thomas W. Adam, Ralf Zimmermann","doi":"10.1021/acs.estlett.6c00695","DOIUrl":"https://doi.org/10.1021/acs.estlett.6c00695","url":null,"abstract":"Ship emissions contribute significantly to climate changeand toair pollution at both global and regional scales. Considering thechanges in physical and chemical properties as well as long-rangespatial distribution of primary emissions during atmospheric aging,the implications for climate and public health remain poorly constrained.Real-world investigations of ship plume characteristics and theirevolution remain very limited and often lack flexibility and/or transferability.We developed a new framework, applying an oxidation flow reactor aboarda mobile research vessel with aerosol analytical equipment. This pilotstudy in the Baltic Sea demonstrates the targeted analysis of individualocean-going vessels. Specifically, gas phase and (potential) aerosolmass emission factors of real-world fresh ship plumes probed at distancesof 0.6–1.6 km and of the research vessels’ own plumewere determined. After photochemical aging, a notable increase inparticle mass concentration was observed for all ships. Ships withhigher emissions of SO2, and hence higher fuel sulfur content,showed larger aerosol formation potential which aligns with the well-establishedconcept of sulfate as a driver of particle formation. Our study introducesthe proof-of-concept for a scalable experimental framework joiningand extending laboratory stack emission aging and stationary ambientmonitoring.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"13 10","pages":"1358–1365"},"PeriodicalIF":7.3,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149173623","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