Environmental Science & Technology Letters Environ.最新文献_第6页

Pressurized Water Reactor 14CO2 Can Offset Downwind Suess Effect Signals in Vegetation within 5 km: A Shenzhen Case Study 压水堆14CO2可以抵消5 km范围内植被的顺风效应信号：以深圳为例

IF 7.3 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2026-08-11 Epub Date: 2026-07-10 DOI: 10.1021/acs.estlett.6c00459

Jing Li, Boji Lin, Nannan Wei, Weimin Wang, Jun Li, Wenbiao Feng, Zhineng Cheng, Sanyuan Zhu, Tao Zhang, Duohong Chen, Gan Zhang

{"title":"Pressurized Water Reactor 14CO2 Can Offset Downwind Suess Effect Signals in Vegetation within 5 km: A Shenzhen Case Study","authors":"Jing Li, Boji Lin, Nannan Wei, Weimin Wang, Jun Li, Wenbiao Feng, Zhineng Cheng, Sanyuan Zhu, Tao Zhang, Duohong Chen, Gan Zhang","doi":"10.1021/acs.estlett.6c00459","DOIUrl":"https://doi.org/10.1021/acs.estlett.6c00459","url":null,"abstract":"Top-down quantification of fossilfuel-derived CO2 (CO2ff) using radiocarbon (14C) relies on the Suesseffect, whereby 14C-free fossil emissions dilute atmospheric 14CO2. However, 14C releases from nuclearpower plants (NPPs) increase the level of ambient 14CO2, offsetting fossil dilution and biasing CO2ff low.Pressurized water reactors (PWRs), dominant in China, emit most 14C as 14CH4, but the smaller 14CO2 fraction may still affect nearby air. We investigatedthe influence of PWR-derived 14CO2 from theDaya Bay and Lingao NPPs (Shenzhen, China) using grass samples collectedin January 2025, representing 2024 growing-season carbon, togetherwith a previously published 2022 vegetation Δ14Cdata set for comparison and joint spatial analysis. The results showdetectable 14CO2 enrichment, with positive Δ14C values up to +3.2‰, confined to the northern nearfield (<5 km downwind). Outside this zone, Δ14C remained negative overall (−13.1‰ to −42.1‰),with no consistent 14CO2 enrichment at moredistant sites or south of the NPPs. A first-order CO2ff-equivalent calculation indicates that this enrichment has an offsettingcapacity of 8.3–8.8 ppm of CO2ff, exceeding themedian apparent CO2ff signal at sites beyond ∼5km. These findings demonstrate that PWR-derived 14CO2 can cause localized, directional interference in Δ14C-based CO2ff reconstructions and highlight theneed to integrate nuclear 14C footprints into top-downCO2ff frameworks.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"13 8","pages":"1084–1091"},"PeriodicalIF":7.3,"publicationDate":"2026-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148709801","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

HO2 Radicals Regulate the Kinetics of Copper-Catalyzed Multiphase Sulfate Formation HO2自由基调控铜催化多相硫酸盐形成动力学

IF 7.3 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2026-08-11 Epub Date: 2026-07-13 DOI: 10.1021/acs.estlett.6c00588

Xu Wu, Xinyue Chao, Pai Liu, Qishen Huang, Yun-Hong Zhang, Maofa Ge

{"title":"HO2 Radicals Regulate the Kinetics of Copper-Catalyzed Multiphase Sulfate Formation","authors":"Xu Wu, Xinyue Chao, Pai Liu, Qishen Huang, Yun-Hong Zhang, Maofa Ge","doi":"10.1021/acs.estlett.6c00588","DOIUrl":"https://doi.org/10.1021/acs.estlett.6c00588","url":null,"abstract":"Sulfate aerosols are produced inurban haze through multiphaseSO2 oxidation catalyzed by transition-metal ions (TMIs).Yet it remains unclear how the catalytic kinetics are regulated byphotochemical radicals that also participate in TMIs’ redoxcycles. Here, using a kinetic model, we investigate the influenceof HO2 radicals on the kinetics of copper-catalyzed S(IV)oxidation by NO2─a recently identified reactioncontributing to sulfate formation in China’s urban haze. Wefind that at higher aerosol pH, more HO2 deprotonates toO2–, and the combined HO2/O2– radical pool acts not as an oxidant, butas a reductant that converts Cu2+ to Cu+. Withfewer Cu2+ ions available to activate S(IV), sulfate formationis inhibited. This inhibitory effect is enhanced at low-ionic-strengthconditions owing to reduced salting-out of aqueous HO2.As the air pollution in China has been alleviated, SO2 andsecondary aerosol concentration have decreased, leading to generallyhigher aerosol pH, lower ionic strength, and stronger atmosphericphotochemical reactivities. Consequently, more HO2/O2– radicals may participate in the TMIs’cycles and alter their effectiveness in catalyzing SO2 conversion.Our findings highlight the importance of TMIs’ cycle throughmultiple simultaneous heterogeneous reactions across various pH andionic strength conditions.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"13 8","pages":"1139–1144"},"PeriodicalIF":7.3,"publicationDate":"2026-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148709773","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

Early Warning from Wastewater: Detection of Emerging Opioid Cychlorphine in Rural Tennessee 废水的早期预警：田纳西州农村新出现的阿片类药物环氯霉素的检测

IF 7.3 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2026-08-11 Epub Date: 2026-07-09 DOI: 10.1021/acs.estlett.6c00529

Bikram Subedi, Ramesh Sapkota, Debra H. Phillips

{"title":"Early Warning from Wastewater: Detection of Emerging Opioid Cychlorphine in Rural Tennessee","authors":"Bikram Subedi, Ramesh Sapkota, Debra H. Phillips","doi":"10.1021/acs.estlett.6c00529","DOIUrl":"https://doi.org/10.1021/acs.estlett.6c00529","url":null,"abstract":"The rapid succession of synthetic drug waves in the UnitedStates─fromthe rise of fentanyl in 2013 to the xylazine and nitazene adulterantsin 2019 and recent emergence of cychlorphine in 2025─underscoresthe highly dynamic and continuously evolving illicit drug market.Since November 2025, public health authorities have reported the emergenceof cychlorphine across multiple jurisdictions despite limited analyticalcapability. In this study, wastewater collected from 12 catchmentsin East Tennessee─ an area reporting most cychlorphine-involvedoverdose cases─was analyzed using a validated liquid chromatographymass spectrometry method. Cychlorphine was detected in seven samplesand quantified in four samples from one rural community situated alongInterstate 75, with a mean concentration of 8.69 ± 1.60 ng/L.Population and flow normalized mass loads ranged from 2.61 to 5.48mg/day/1000 people, indicating sustained community-level exposure.To our knowledge, this study provides the first evidence of cychlorphineoccurrence in wastewater samples. These findings demonstrate the wastewater-basedepidemiology as an early warning system for emerging synthetic opioids.Implementing comprehensive and continuous wastewater monitoring canprovide near-real-time insights into drug use trends, enabling proactivepublic health responses, informing harm-reduction strategies, andstrengthening emergency preparedness to mitigate the impact of highlypotent synthetic opioids.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"13 8","pages":"1064–1070"},"PeriodicalIF":7.3,"publicationDate":"2026-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148709819","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

Rhizosphere Effect on N2O Emission in Response to Carbon Input Depends on Its Dominant Production Pathway in Tea-Planted Soils 根际对茶树土壤N2O排放响应的影响取决于其主要生产途径

IF 7.3 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2026-08-11 Epub Date: 2026-07-13 DOI: 10.1021/acs.estlett.6c00506

Miaomiao Cao, Imran Mehmood, Yuxuan Zhang, Debang Yu, Yong Li, Nyumah Fallah, Yves Uwiragiye, Jing Wang, Yinfei Qian, Zucong Cai, Minggang Xu, Scott X. Chang, Christoph Müller, Yi Cheng

{"title":"Rhizosphere Effect on N2O Emission in Response to Carbon Input Depends on Its Dominant Production Pathway in Tea-Planted Soils","authors":"Miaomiao Cao, Imran Mehmood, Yuxuan Zhang, Debang Yu, Yong Li, Nyumah Fallah, Yves Uwiragiye, Jing Wang, Yinfei Qian, Zucong Cai, Minggang Xu, Scott X. Chang, Christoph Müller, Yi Cheng","doi":"10.1021/acs.estlett.6c00506","DOIUrl":"https://doi.org/10.1021/acs.estlett.6c00506","url":null,"abstract":"A microbe-rich rhizosphere is a hotspot for emissionsof nitrousoxide (N2O), a potent greenhouse gas. We hypothesized thatresidue carbon (C) inputs would alter the rhizosphere effect on N2O emissions due to different C limitations for microbes betweenrhizosphere and bulk soils. To test this hypothesis, we employed 15N tracing and molecular approaches in two tea-planted soilsdiffering in nitrogen-related rhizospheric microbial abundance (RMA)at residue input rates of 0, 259, and 518 mgC kgsoil–1. We demonstrated that a negative rhizosphereeffect on N2O emissions in low-RMA soil was significantlydiminished under low C input but amplified under high C input. Incontrast, a negative rhizosphere effect on N2O emissionsin high-RMA soil was gradually diminished with increasing C inputand shifted to be positive under high C input. In low-RMA soil, wheredenitrification almost dominated N2O production, the rhizosphereeffect on nirS/nirK-type denitrifiersprimarily regulated that on denitrification-derived N2Oemissions. However, in high-RMA soil, where nitrification dominatedN2O production, the rhizosphere effect on nitrogen mineralizationmainly regulated that on nitrification-derived N2O emissions.Our results indicate that whether the rhizosphere effect on N2O emissions is positive or negative depends on the prevailingN2O production pathway under elevated C input.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"13 8","pages":"1101–1107"},"PeriodicalIF":7.3,"publicationDate":"2026-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148703610","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

Iron Oxidation Links CO2 Mineralization to Hydrogen Formation 铁氧化将二氧化碳矿化与氢的形成联系起来

IF 7.3 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2026-08-11 Epub Date: 2026-07-21 DOI: 10.1021/acs.estlett.6c00308

Aliakbar Hassanpouryouzband, Laila Lotz, Samuel Pickering, Faisal W. K. Khudhur, Oakley Turner, Arnaud Lager

{"title":"Iron Oxidation Links CO2 Mineralization to Hydrogen Formation","authors":"Aliakbar Hassanpouryouzband, Laila Lotz, Samuel Pickering, Faisal W. K. Khudhur, Oakley Turner, Arnaud Lager","doi":"10.1021/acs.estlett.6c00308","DOIUrl":"https://doi.org/10.1021/acs.estlett.6c00308","url":null,"abstract":"Carbon mineralizationin ultramafic rocks offers durable CO2 storage, but whetherCO2-rich fluids also promotehydrogen generation remains unresolved. Here we show, using pairedCO2-bearing and CO2-free batch reactions combinedwith aqueous geochemistry, dissolved-gas measurements and X-ray microtomography,that both processes can proceed within the same water–rocksystem. CO2 lowered the fluid pH and accelerated silicatedissolution, increasing Mg2+, Ca2+, and dissolvedsilica. Yet, dissolved iron fell systematically under CO2 exposure, while molecular hydrogen rose and dissolved oxygen declined,indicating oxidation of Fe2+, transfer of electrons towater, and retention of oxidized iron in secondary solids. The rocksare initially low-porosity (<1%) and fracture-dominated, showingthat this coupling develops even where the matrix pore space is limited.The combined fluid-chemistry, dissolved-gas, and redox data supportiron oxidation as the chemical link between these co-occurring processes.These findings point to ultramafic formations as candidate subsurfacereactors for simultaneous permanent carbon fixation and in situ generationof a clean energy carrier.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"13 8","pages":"1077–1083"},"PeriodicalIF":7.3,"publicationDate":"2026-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148703615","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

Direct Evidence for the Carrier Effect of Nanoplastics in Plants via In Situ Mass Spectrometry Imaging 通过原位质谱成像直接证明纳米塑料在植物中的载体效应

IF 7.3 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2026-07-14 Epub Date: 2026-06-17 DOI: 10.1021/acs.estlett.6c00498

Ye Li, Yanfang Zhao, Junjie Zhang, Hongmei Gong, Baoshan Xing, Xiangfeng Chen* and Lei Wang*,

{"title":"Direct Evidence for the Carrier Effect of Nanoplastics in Plants via In Situ Mass Spectrometry Imaging","authors":"Ye Li, Yanfang Zhao, Junjie Zhang, Hongmei Gong, Baoshan Xing, Xiangfeng Chen* and Lei Wang*, ","doi":"10.1021/acs.estlett.6c00498","DOIUrl":"https://doi.org/10.1021/acs.estlett.6c00498","url":null,"abstract":"To provide the direct evidence for comigration of plastic particles and additives in organisms, for the first time, matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI-MSI) was employed to obtain in situ imaging characterization of the migration behaviors of nanoplastics (NPs) and additives in potted cactus stems. When polystyrene nanoplastics (PS-NPs) loaded with the antioxidant tris(2,4-di-tert-butylphenyl) phosphite (AO168) and flame retardant diphenyl phosphate (DPhP) were continuously exposed directly to the pith for 7 days, the additives comigrated with PS-NPs upward along stems. On the low cross-section, concentrations of PS, AO168 and DPhP were 84.8 ± 7.3, 1.5 ± 0.1, and 7.1 ± 1.9 μg/cm2, respectively; the corresponding values on the high cross-section were 7.4 ± 0.8, 1.4 ± 0.1 and 3.8 ± 0.2 μg/cm2. In contrast, AO168 and DPhP were undetectable in high cross sections of the PS-NPs-free control under identical exposure levels. The mapping degrees of additives to PS-NPs decline from 63.1% at low cross-section to 1.0% at high cross-section, indicating progressive dissociation during translocation. In vitro experiments demonstrated that PS loading can significantly reduce the degradation efficiency of additives within the cactus bleeding sap. The PS-NPs entering the stems exert a carrier effect, thereby facilitating the long-distance translocation of additives to distal plant tissues.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"13 7","pages":"995–1000"},"PeriodicalIF":7.3,"publicationDate":"2026-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148441736","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

Where Can We Store CO2 and at What Cost? A Global Geologic Screening 我们可以在哪里储存二氧化碳，成本是多少？全球地质筛选

IF 7.3 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2026-07-14 Epub Date: 2026-06-10 DOI: 10.1021/acs.estlett.6c00179

Lydia R. Bailey*, Jonathan D. Ogland-Hand, Benjamin M. Adams, Jonathon Prehn and Richard S. Middleton,

{"title":"Where Can We Store CO2 and at What Cost? A Global Geologic Screening","authors":"Lydia R. Bailey*, Jonathan D. Ogland-Hand, Benjamin M. Adams, Jonathon Prehn and Richard S. Middleton, ","doi":"10.1021/acs.estlett.6c00179","DOIUrl":"https://doi.org/10.1021/acs.estlett.6c00179","url":null,"abstract":"Achieving climate targets may require more than 515 Gt of geologic CO2 storage by mid-century, yet no globally consistent, cost-inclusive assessments of storage potential currently exist. Identifying where storage can scale requires a framework that compares storage potential and costs across sedimentary settings by using uniform geologic inputs and modeling assumptions. Here, we develop a globally harmonized screening that integrates basin architecture, reservoir properties, and thermal conditions and applies SCO2TPRO, a dynamic injection and storage model that estimates the injectivity, effective storage potential, and storage cost. Results reveal systematic geologic controls on both storage potential and cost: the largest potential storage volumes do not necessarily coincide with the least cost opportunities. High-storage, moderate-cost passive margins and foreland systems contrast with low-cost, moderate-volume rifts and intracratonic basins suited to early deployment. Regional supply curves indicate that Eastern Europe and West-Central Asia, Africa, and parts of Latin America can deliver large storage volumes without rapid cost escalation, while Eastern Asia and the Middle East offer localized, very low-cost opportunities. This cost-inclusive framework provides a basis for prioritizing where durable CO2 storage can be developed first, at scale and at the lowest cost, using standardized geologic inputs and modeling assumptions that can be applied to new data sets.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"13 7","pages":"902–908"},"PeriodicalIF":7.3,"publicationDate":"2026-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148441725","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

Workplace Exposures May Mask Wildfire Smoke-Related Exposure Inequities and Mortality 工作场所暴露可能掩盖野火烟雾相关暴露的不平等和死亡率

IF 7.3 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2026-07-14 Epub Date: 2026-06-30 DOI: 10.1021/acs.estlett.6c00273

Abas Shkembi*, Sara D. Adar, Richard L. Neitzel and Marissa L. Childs*,

{"title":"Workplace Exposures May Mask Wildfire Smoke-Related Exposure Inequities and Mortality","authors":"Abas Shkembi*, Sara D. Adar, Richard L. Neitzel and Marissa L. Childs*, ","doi":"10.1021/acs.estlett.6c00273","DOIUrl":"https://doi.org/10.1021/acs.estlett.6c00273","url":null,"abstract":"Millions of outdoor workers cannot avoid wildfire smoke, likely leading to inequalities in exposure and health risk, but we lack a comprehensive understanding of how many outdoor workers are exposed to wildfire smoke in the United States (US). We first characterized work-related exposure to wildfire PM2.5 for 3,108 contiguous US counties during 2006–2019 by integrating data on wildfire smoke-specific PM2.5, workplace activities, and employment counts. We then compared the racial and ethnic composition of each county with the person-days exposed to ambient and work-related wildfire smoke to investigate whether certain racial and ethnic groups experience differential exposure to wildfire smoke at home and at work. Lastly, we replicated a previous analysis of ambient wildfire smoke impacts on all-cause mortality and stratified it by work-related exposure to understand differential mortality effects of ambient wildfire PM2.5. Despite experiencing less ambient exposure to wildfire PM2.5, counties with higher portions of non-Hispanic Black and Hispanic Americans experienced higher work-related exposures. We also find suggestive evidence that the effect of ambient smoke fine particulate matter (PM2.5) concentrations on all-cause mortality may differ by workplace exposure. These findings suggest that workplace exposures should be considered in wildfire smoke-adaptation measures.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"13 7","pages":"879–885"},"PeriodicalIF":7.3,"publicationDate":"2026-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/acs.estlett.6c00273","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148442051","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

Enhancing the Detection of Potential Anthropogenic Methane Emission Sources in China Using Machine Learning and TROPOMI Observations 利用机器学习和TROPOMI观测加强中国潜在人为甲烷排放源的检测

IF 7.3 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2026-07-14 Epub Date: 2026-06-15 DOI: 10.1021/acs.estlett.6c00115

Siqi Yu*, Lu Sun and Zhu Liu*,

{"title":"Enhancing the Detection of Potential Anthropogenic Methane Emission Sources in China Using Machine Learning and TROPOMI Observations","authors":"Siqi Yu*, Lu Sun and Zhu Liu*, ","doi":"10.1021/acs.estlett.6c00115","DOIUrl":"https://doi.org/10.1021/acs.estlett.6c00115","url":null,"abstract":"Methane emissions are strongly influenced by human activities. The global methane budget framework indicates that direct anthropogenic emissions, including those from agriculture, waste, fossil fuel extraction, and biomass/biofuel combustion, account for 57% (bottom-up) to 65% (top-down) of total global emissions, underscoring the dominant role of human activity. Here, we analyze methane emission sources and classify their types across China using TROPOspheric Monitoring Instrument (TROPOMI) satellite observations from 2019 to 2023. Results show that the number of potential methane emission sources retrieved from satellite data increased initially and then declined over the study period. A multiparameter machine learning classification model successfully distinguished between potential natural and anthropogenic methane sources, achieving accuracy scores of nearly 0.75 on the validation set and approximately 0.7 on the test set. We find that 12–25% of the anthropogenic methane sources detected by TROPOMI over the five-year period were not recorded in EDGAR. These unlisted sources exhibit similar longitudinal patterns to EDGAR but show marked latitudinal discrepancies, particularly in northwestern and northeastern China. Our study provides an effective framework for methane source inversion and identification using TROPOMI, offering valuable support for informing mitigation strategies in China.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"13 7","pages":"893–901"},"PeriodicalIF":7.3,"publicationDate":"2026-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148441586","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

Aquatic Plastisphere as a Reservoir for Pathogenic and Antifungal-Resistant Fungi 水生塑性球作为病原和抗真菌抗性真菌的储存库

IF 7.3 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2026-07-14 Epub Date: 2026-06-15 DOI: 10.1021/acs.estlett.6c00486

Albert Shing King Zhou, Chunlan Fan, Changchao Li*, Yuen-Wa Ho, James Kar-Hei Fang and Ling N. Jin*,

{"title":"Aquatic Plastisphere as a Reservoir for Pathogenic and Antifungal-Resistant Fungi","authors":"Albert Shing King Zhou, Chunlan Fan, Changchao Li*, Yuen-Wa Ho, James Kar-Hei Fang and Ling N. Jin*, ","doi":"10.1021/acs.estlett.6c00486","DOIUrl":"https://doi.org/10.1021/acs.estlett.6c00486","url":null,"abstract":"Plastic pollution creates a globally distributed “plastisphere” microhabitat, yet its role in fostering antifungal resistance, a rapidly emerging One Health threat, remains poorly understood. Here, we tested whether aquatic plastic debris harbors potentially pathogenic fungi with antifungal resistance traits through combined shotgun metagenomics, culture-based validation, antifungal susceptibility testing, and isolate whole-genome sequencing. Diverse fungal assemblages were detected in the plastisphere from urban and peri-urban water bodies, including 32 FungAMR-curated pathogenic species, 13 of which are listed as WHO priority fungal pathogens. All 32 pathogenic species had contigs carrying at least one known resistance-conferring amino acid substitution, indicating widespread resistance potential across the detected pathogenic assemblage. Culture-based assays confirmed viable high-risk fungi, including Aspergillus fumigatus, Fusarium oxysporum, and Candida parapsilosis, with their isolates exhibiting multidrug-resistant phenotypes in MIC tests against 11 antifungal agents. Cross-substrate comparison further showed higher burdens of fungi carrying resistance-associated substitutions on microplastics than in bulk water. These findings indicate that the aquatic plastisphere potentially acts as a reservoir and dispersal vehicle for antifungal-resistant fungal pathogens, highlighting an overlooked dimension of plastic pollution with One Health relevance.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"13 7","pages":"988–994"},"PeriodicalIF":7.3,"publicationDate":"2026-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/acs.estlett.6c00486","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148441732","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