Environmental Science & Technology Letters Environ.最新文献_第10页

Toxicity Decreases with the Decay of Environmentally Persistent Free Radicals in Particulate Matter from Incomplete Solid Fuel Burning 不完全固体燃料燃烧产生的微粒物质中环境持久性自由基的衰变导致毒性降低

IF 10.9 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2024-05-03 DOI: 10.1021/acs.estlett.4c00333

Anyuan Cheng, Xiu Chen, Di Wu and Qing Li*,

{"title":"Toxicity Decreases with the Decay of Environmentally Persistent Free Radicals in Particulate Matter from Incomplete Solid Fuel Burning","authors":"Anyuan Cheng, Xiu Chen, Di Wu and Qing Li*, ","doi":"10.1021/acs.estlett.4c00333","DOIUrl":"10.1021/acs.estlett.4c00333","url":null,"abstract":"Environmentally persistent free radicals (EPFRs) have been linked to the generation of reactive oxygen species (ROS) and adverse health effects. However, there remains a knowledge gap regarding the dynamic changes in reactivity and toxicity during the decay process of EPFRs emitted from incomplete solid fuel burning, which are identified as a primary source of EPFRs. Here, we report the decay behavior of EPFRs in particulate matter (PM) emitted from typical solid fuel burning and the associated ROS generation and cytotoxic effects. The EPFRs in freshly produced PM first undergo rapid exponential decay with lifetimes ranging from 15 to 97 h and are categorized as fast-decay EPFRs. The relative content of fast-decay EPFRs was 40.5 ± 15.3%, while the remaining portion, defined as slow-decay EPFRs, displayed an extremely slow rate of decay. ROS generation and cytotoxicity decreased by 38.8 ± 11.4% and 62.5 ± 12.6%, respectively, following the depletion of fast-decay EPFRs, which were further demonstrated to be responsible for the variations in PM reactivity and toxicity. These new findings underscore the importance of considering the decay process of EPFRs in assessments of PM toxicity.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"11 5","pages":"459–465"},"PeriodicalIF":10.9,"publicationDate":"2024-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140827739","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

Emerging Challenges and Future Directions in Insect-Mediated Plastic Degradation 昆虫介导的塑料降解的新挑战和未来方向

IF 10.9 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2024-05-03 DOI: 10.1021/acs.estlett.4c00312

Lei He, and , Dong-Feng Liu*,

引用次数: 0

Particulate Siloxane and Cigarette Smoke Organic Aerosol in a Gym 健身房中的硅氧烷微粒和烟雾有机气溶胶

IF 10.9 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2024-05-01 DOI: 10.1021/acs.estlett.4c00288

Yele Sun*, Junyao Li, Bo You and Weiqi Xu,

{"title":"Particulate Siloxane and Cigarette Smoke Organic Aerosol in a Gym","authors":"Yele Sun*, Junyao Li, Bo You and Weiqi Xu, ","doi":"10.1021/acs.estlett.4c00288","DOIUrl":"10.1021/acs.estlett.4c00288","url":null,"abstract":"Understanding the composition and concentration of pollutants in the gym environment is crucial for evaluating the potential health risks associated with physical exercise. Here submicron aerosol composition in a basement gym was characterized by a high-resolution aerosol mass spectrometer. Our results showed higher fraction of organic aerosol (OA) in particulate matter indoors (50%) than outdoors (40%). Positive matrix factorization identified two distinct gym-related OA factors, i.e., siloxane OA (SiOA) and cigarette smoke OA (CSOA). Unexpectedly high concentrations of particulate siloxane, up to 6 μg m–3 and contributing 7–11% of OA were observed, and the variations of SiOA were strongly correlated with carbon dioxide emissions from human activities. The source of SiOA is likely from the lubricant of silicone polymers used in fitness equipment during exercise. Additionally, the presence of CSOA in the gym, on average contributing 6–7% of OA, is primarily linked to outdoor transport during ventilation. Our results highlight the significance of thorough investigations of air quality across different gyms with varying equipment, human occupancy, and ventilation conditions which is pivotal for implementing effective measures that ensure healthy indoor air quality and minimize potential health risks associated with exercise in gyms.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"11 5","pages":"453–458"},"PeriodicalIF":10.9,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140827557","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

Entanglement of Daphnia magna by Fibrous Microplastics through “Hook and Loop” Action 纤维状微塑料通过 "钩环 "作用缠住大型蚤

IF 10.9 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2024-04-30 DOI: 10.1021/acs.estlett.4c00279

Cuizhu Ma, Huahong Shi and Vera I. Slaveykova*,

{"title":"Entanglement of Daphnia magna by Fibrous Microplastics through “Hook and Loop” Action","authors":"Cuizhu Ma, Huahong Shi and Vera I. Slaveykova*, ","doi":"10.1021/acs.estlett.4c00279","DOIUrl":"10.1021/acs.estlett.4c00279","url":null,"abstract":"Entanglement, often associated with the interaction of large marine plastics and larger animals, has not yet been reported in the context of microplastics (MPs) and small organisms. In this study, Daphnia magna was exposed to fibrous and fragmentary MPs at concentrations ranging from 1 to 1000 items/mL for 7 days. The results revealed that fibrous MPs tended to entangle with the second antennae and tail claws of D. magna, whereas fragmentary MPs merely adhered to the surface of the daphnids but do not exhibit entanglement. Additionally, the swimming speed and projected area of swimming trajectories of daphnids significantly decreased in the 100 items/mL group compared with the control. However, the occurrence of entanglement and slow swimming was less pronounced in the 1000 items/mL group due to the aggregation of fibrous MPs. Scanning electron microscopy revealed that D. magna possessed a rich spine structure on the surface of their bodies, particularly on their antennae and tails. The entanglement of D. magna by fibrous MPs resembled the action of manufactured “hook and loop”. Overall, the results of this research revealed that entanglement is observed in small animals exposed to fibrous MPs, highlighting the direct biological effects of MPs beyond ingestion.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"11 5","pages":"433–437"},"PeriodicalIF":10.9,"publicationDate":"2024-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acs.estlett.4c00279","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140827651","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

Toward an Operational Machine-Learning-Based Model for Deriving the Real-Time Gapless Diurnal Cycle of Ozone Pollution in China with CLDAS Data 利用 CLDAS 数据建立基于机器学习的中国臭氧污染实时无间隙昼夜循环运行模型

IF 10.9 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2024-04-29 DOI: 10.1021/acs.estlett.4c00106

Nanxuan Shang, Ke Gui*, Fugang Li, Baoxin Li, Xutao Zhang, Zhaoliang Zeng, Yu Zheng, Lei Li, Ye Fei, Yue Peng, Hengheng Zhao, Wenrui Yao, Yurun Liu, Hong Wang, Zhili Wang, Yaqiang Wang, Huizheng Che* and Xiaoye Zhang,

{"title":"Toward an Operational Machine-Learning-Based Model for Deriving the Real-Time Gapless Diurnal Cycle of Ozone Pollution in China with CLDAS Data","authors":"Nanxuan Shang, Ke Gui*, Fugang Li, Baoxin Li, Xutao Zhang, Zhaoliang Zeng, Yu Zheng, Lei Li, Ye Fei, Yue Peng, Hengheng Zhao, Wenrui Yao, Yurun Liu, Hong Wang, Zhili Wang, Yaqiang Wang, Huizheng Che* and Xiaoye Zhang, ","doi":"10.1021/acs.estlett.4c00106","DOIUrl":"10.1021/acs.estlett.4c00106","url":null,"abstract":"An operational real-time surface ozone (O3) retrieval (RT-SOR) model was developed that can provide a gapless diurnal cycle of O3 retrievals with a spatial resolution of 6.25 km by integrating Chinese Land Data Assimilation System (CLDAS) data and multisource auxiliary information. The model robustly captures the hourly O3 variability, with a sample-based (station-based) cross-validation R2 of 0.88 (0.85) and RMSE of 14.3 μg/m3 (16.1 μg/m3). An additional hindcast-validation experiment demonstrated that the generalization ability of the model is robust (R2 = 0.75; RMSE = 21.9 μg/m3). Compared with previous studies, the model performs comparably or even better at the daily scale and fills the gaps in terms of missing hourly O3 data within the 24-hour cycle. More importantly, underpinned by the RT availability of CLDAS data, the hourly concentration of O3 can be updated in RT, which is expected to advance our understanding of the diurnal cycle of O3 pollution in China.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"11 6","pages":"553–559"},"PeriodicalIF":10.9,"publicationDate":"2024-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140827645","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

Repurposing of an antiasthmatic drug may reduce NETosis and myocardial ischaemia/reperfusion injury. 抗哮喘药物的再利用可能会减少 NETosis 和心肌缺血/再灌注损伤。

IF 39.3 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2024-04-26 DOI: 10.1093/eurheartj/ehae201

Michael Amponsah-Offeh, S. Tual-Chalot, Konstantinos Stellos

引用次数: 0

Dissection-like appearance of focal catheter-induced vasospasm in intracoronary optical coherence tomography. 冠状动脉内光学相干断层扫描中导管诱发的局灶性血管痉挛的分裂样表现。

IF 39.3 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2024-04-26 DOI: 10.1093/eurheartj/ehae240

R. Volleberg, P. Damman, Niels van Royen

引用次数: 0

Insights into the influence of income variability on cardiovascular risk in non-elderly adults with type 2 diabetes. 非老年 2 型糖尿病成人患者收入变化对心血管风险的影响。

IF 39.3 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2024-04-26 DOI: 10.1093/eurheartj/ehae163

Ketrell L. McWhorter

引用次数: 0

Zürich II Statement on Per- and Polyfluoroalkyl Substances (PFASs): Scientific and Regulatory Needs 关于全氟烷基和多氟烷基物质 (PFAS) 的苏黎世 II 声明：科学和监管需求

IF 8.9 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2024-04-22 DOI: 10.1021/acs.estlett.4c0014710.1021/acs.estlett.4c00147

Jamie C. DeWitt*, Juliane Glüge, Ian T. Cousins, Gretta Goldenman, Dorte Herzke, Rainer Lohmann, Mark Miller, Carla A. Ng, Sharyle Patton, Xenia Trier, Lena Vierke, Zhanyun Wang, Sam Adu-Kumi, Simona Balan, Andreas M. Buser, Tony Fletcher, Line Småstuen Haug, Audun Heggelund, Jun Huang, Sarit Kaserzon, Juliana Leonel, Ishmail Sheriff, Ya-Li Shi, Sara Valsecchi and Martin Scheringer,

{"title":"Zürich II Statement on Per- and Polyfluoroalkyl Substances (PFASs): Scientific and Regulatory Needs","authors":"Jamie C. DeWitt*, Juliane Glüge, Ian T. Cousins, Gretta Goldenman, Dorte Herzke, Rainer Lohmann, Mark Miller, Carla A. Ng, Sharyle Patton, Xenia Trier, Lena Vierke, Zhanyun Wang, Sam Adu-Kumi, Simona Balan, Andreas M. Buser, Tony Fletcher, Line Småstuen Haug, Audun Heggelund, Jun Huang, Sarit Kaserzon, Juliana Leonel, Ishmail Sheriff, Ya-Li Shi, Sara Valsecchi and Martin Scheringer, ","doi":"10.1021/acs.estlett.4c0014710.1021/acs.estlett.4c00147","DOIUrl":"https://doi.org/10.1021/acs.estlett.4c00147https://doi.org/10.1021/acs.estlett.4c00147","url":null,"abstract":"Per- and polyfluoroalkyl substances (PFASs) are a class of synthetic organic chemicals of global concern. A group of 36 scientists and regulators from 18 countries held a hybrid workshop in 2022 in Zürich, Switzerland. The workshop, a sequel to a previous Zürich workshop held in 2017, deliberated on progress in the last five years and discussed further needs for cooperative scientific research and regulatory action on PFASs. This review reflects discussion and insights gained during and after this workshop and summarizes key signs of progress in science and policy, ongoing critical issues to be addressed, and possible ways forward. Some key take home messages include: 1) understanding of human health effects continues to develop dramatically, 2) regulatory guidelines continue to drop, 3) better understanding of emissions and contamination levels is needed in more parts of the world, 4) analytical methods, while improving, still only cover around 50 PFASs, and 5) discussions of how to group PFASs for regulation (including subgroupings) have gathered momentum with several jurisdictions proposing restricting a large proportion of PFAS uses. It was concluded that more multi-group exchanges are needed in the future and that there should be a greater diversity of participants at future workshops.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"11 8","pages":"786–797 786–797"},"PeriodicalIF":8.9,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acs.estlett.4c00147","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141972779","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

New light shed on Anderson-Fabry, peripartum, and early-onset cardiomyopathies. 安德森-法布里、围产期和早发性心肌病的新进展。

IF 39.3 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2024-04-21 DOI: 10.1093/eurheartj/ehae226

F. Crea

引用次数: 0