Science of the Total Environment最新文献

{"title":"Perfluoroalkyl substances (PFASs) in the major rivers of Korea: Distribution in the environment and bioaccumulation in crucian carp fish","authors":"Mai Duc Hung ,&nbsp;Nguyen Thi Nga ,&nbsp;Hyeon Ji Jung ,&nbsp;Yu-Jin Shin ,&nbsp;Byoung-Cheun Lee ,&nbsp;Hyeon Seo Cho","doi":"10.1016/j.scitotenv.2025.179483","DOIUrl":"10.1016/j.scitotenv.2025.179483","url":null,"abstract":"<div><div>The concentration of thirteen PFASs in water (<em>n</em> = 21), sediment (n = 21) and crucian carp fish muscle samples (<em>n</em> = 57) collected from three major rivers of Korea, including Namhan River, Yeongsan River and Nakdong River in June 2019 were determined to assess the potential risk of PFASs to aquatic life using bio-accumulation factor (BAF). The mean PFASs concentration in water (ng/L) were in order Nakdong River (69.63) &gt; Yeongsan River (51.47) &gt; Namhan River (13.30). The detection frequency rate of the long-chain PFASs, include PFHxA, PFOA and PFOS were high in river water samples. The PFASs in sediment samples were observed at low concentrations (&lt;2 ng/g dw) in three rivers. The sediment/water partition coefficient (K_d) values of PFHpA were greatest in three rivers. The bioaccumulation factor (BAF) of PFHxA, PFUnDA and PFHpA were dominant in crucian carp fish samples. However, all the BAF levels for the carp samples were found to be &lt;2000 (L/kg). Although the BAF values in crucian carp fish did not exceed the bioaccumulative level, several high long-chain PFASs concentrations were observed in water samples from surrounding hotspot sampling sites in Nakdong and Yeongsan River. Further study and monitoring of PFASs in various fish species and/or trophic level investigations are necessary to assess the impact of these pollutants on the river ecosystems.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"979 ","pages":"Article 179483"},"PeriodicalIF":8.2,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143863544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

{"title":"Lake restoration techniques: A review of methods and future pathways","authors":"J.A. Dunalska","doi":"10.1016/j.scitotenv.2025.179450","DOIUrl":"10.1016/j.scitotenv.2025.179450","url":null,"abstract":"<div><div>The aim of this study was to focus on restoration techniques that have been extensively researched and found to be applicable to aquatic ecosystems and those that are in the conceptual or experimental stage. A description of the method is presented objectively and the factors that may favour or hinder achieving sustainable improvements in water quality are detailed. All the information is tabulated as a compendium of knowledge not only for scientists, but also for water managers and lake users. On the basis of the analysis of the review material, an optimisation of restoration methods involving the implementation of hybrid systems is proposed. The proposed solutions consist of combining restoration techniques in the lake with nature-based solutions in the lakeshore zone (e.g. high-performance buffer zones). This approach makes it possible to reduce external sources of pollution and thus provides an opportunity to optimise existing solutions. This is important from the point of view of the environmental and economic/social effect. Achieving a high environmental quality, improves the health and well-being of society and creates opportunities for personal and social development. Future restoration requires not only proven engineering and biological methods, but also a holistic approach that encourages all sections of society to become actively involved in water monitoring and restoration programmes.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"979 ","pages":"Article 179450"},"PeriodicalIF":8.2,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143868415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

{"title":"Raw sheep wool contamination with bisphenol A and parabens. An assessment of interregional differences","authors":"Sławomir Gonkowski ,&nbsp;Julia Martin ,&nbsp;Nariste Kadyralieva ,&nbsp;Irene Aparicio ,&nbsp;Juan Luis Santos ,&nbsp;Esteban Alonso ,&nbsp;Liliana Rytel","doi":"10.1016/j.scitotenv.2025.179489","DOIUrl":"10.1016/j.scitotenv.2025.179489","url":null,"abstract":"<div><div>The objective of this work is to investigate for the first time the contamination of raw wool with endocrine disruptor compounds - bisphenol A (BPA) and parabens (PBs), as well as to conduct the first biomonitoring study on long-term sheep exposure to these substances. The levels of BPA, methylparaben (MeP), ethylparaben (EtP), propylparaben (PrP) and butylparaben (BuP) were evaluated in wool samples (<em>n</em> = 100) from Kyrgyzstan and Poland using liquid chromatography-tandem mass spectrometry method. The highest levels were noted for BPA (range: 46.9–502 ng/g, mean 132 ± 70.5 ng/g) and MeP (range: 3.4 ng/g–71.1 ng/g, mean 19.9 ± 13.8 ng/g). Lower levels were found for EtP (range: &lt;method quantification level (MQL) – 3.9 ng/g, mean 1.3 ± 0.7 ng/g), and levels of PrP and BuP did not exceed the MQL level in any sample. Differences in BPA, MeP and EtP levels between animals from Kyrgyzstan and Poland were noted. Some differences were also found between animals from places located close to each other in the same country. The results indicate that sheep are subject to long-term exposure to BPA and PBs, which depends on the local factors and likely negatively affect the animal's health status. This study highlights for the first time that raw natural sheep wool may be contaminated with BPA and PBs during the animal's life and, therefore, may be a potential source of human exposure to these substances.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"979 ","pages":"Article 179489"},"PeriodicalIF":8.2,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143859589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

{"title":"Sources and components of fine air pollution exposure and brain morphology in preadolescents","authors":"Kirthana Sukumaran ,&nbsp;Katherine L. Bottenhorn ,&nbsp;Michael A. Rosario ,&nbsp;Carlos Cardenas-Iniguez ,&nbsp;Rima Habre ,&nbsp;Shermaine Abad ,&nbsp;Joel Schwartz ,&nbsp;Daniel A. Hackman ,&nbsp;J.C. Chen ,&nbsp;Megan M. Herting","doi":"10.1016/j.scitotenv.2025.179448","DOIUrl":"10.1016/j.scitotenv.2025.179448","url":null,"abstract":"<div><div>Air pollution is an emerging novel neurotoxicant during childhood and adolescence. However, little is known regarding how fine particulate matter (PM_2.5) components and its sources impact brain morphology. We investigated air pollution exposure-related differences in brain morphology using cross-sectional magnetic resonance imaging data from 10,095 children ages 9–11 years-old enrolled in the United States' Adolescent Brain Cognitive Development Study [2016–2018]. Air pollution estimates included fifteen PM_2.5 constituent chemicals and metals, and six major sources of PM_2.5 (e.g., crustal materials, biomass burning, traffic) identified from prior source apportionment, as well as nitrogen dioxide (NO₂) and ozone (O₃). After adjusting for demographic, socioeconomic, and neuroimaging covariates, we used partial least squares analyses to identify associations between simultaneous co-exposures and morphological differences in cortical thickness, surface area, and subcortical volumes. We found that greater exposure to PM_2.5 and NO₂ was associated with decreases in frontal and increases in inferior temporal surface area. PM_2.5 component and source analyses linked cortical surface area and thickness to biomass burning (e.g., organic carbon, potassium), crustal material (e.g., calcium, silicon), and traffic (e.g., copper, iron) exposures, while smaller subcortical volumes were linked to greater potassium exposure. This is the first study to show differential effects of several air pollution sources on development of children's brains. Significant associations were found in brain structures involved in several cognitive and social processes, including lower- and higher-order sensory processing, socioemotional behaviors, and executive functioning. These findings highlight differential effects of several air pollution sources on brain structure in preadolescents across the U.S.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"979 ","pages":"Article 179448"},"PeriodicalIF":8.2,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143863435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

{"title":"Concentrations of perfluoroalkyl substances in sediments and wastewater treatment plant-derived biosolids from Ireland","authors":"Yulong Ma ,&nbsp;Martin Sharkey ,&nbsp;Ann Marie Coggins ,&nbsp;Will Stubbings ,&nbsp;Mark G. Healy ,&nbsp;Stuart Harrad","doi":"10.1016/j.scitotenv.2025.179380","DOIUrl":"10.1016/j.scitotenv.2025.179380","url":null,"abstract":"<div><div>Concentrations of 39 perfluoroalkyl substances (PFAS) are reported in 120 inland and transitional sediments from Ireland. We also report concentrations in 21 samples of biosolids from seven Irish wastewater treatment plants (WWTPs; <em>n</em> = 3 from each). This is the first report of the presence (% detection frequency) in sediments of: perfluroroundecane sulfonate (PFUdS) (7.4 %), perflurorododecane sulfonate (PFDoS) (8.6 %), perfluorotridecane sulfonate (PFTrDS) (7.4 %), 11-chloroeicosafluoro-3-oxaundecane-1-sulfonate (11Cl-PF3OUdS or 8:2 Cl-PFESA) (7.4 %), and 9-chlorohexadecafluoro-3-oxanonane-1-sulfonate (9Cl-PF3ONS or 6:2 Cl-PFESA) (2.5 %) and of the following in biosolids: PFDoS (24 %), PFTrDS (38 %), and perfluoroethylcyclohexane sulfonate (PFECHS) (38 %). Concentrations of all target PFAS in biosolids exceed significantly (<em>p</em> &lt; 0.05) those in sediments. Moreover, the relative abundance of different PFAS classes differs markedly. In sediments, perfluorocarboxylic acids (PFCAs) dominate (on average 55 % ΣPFAS), while in biosolids, PFCAs constitute on average 26 % ΣPFAS, with perfluorosulfonic acids (PFSAs) the main group (37 % ΣPFAS). This suggests PFAS in Irish sediments are a complex integral of many sources, of which WWTPs are just one. Concentrations in sediments were assessed for ecotoxicity by comparison with predicted no effect concentration (PNEC) values promulgated by the NORMAN network. In general, concentrations detected are well below PNECs. However, the PNEC for perfluorooctane sulfonic acid (PFOS) is exceeded for most sediments. While overall, novel PFAS (nPFAS) like sodium 2,2,3-trifluor-3-(1,1,2,2,3,3-hexafluoro-3-trifluormethoxypropoxy) propionate (ADONA), PFECHS, and 2,3,3,3-tetrafluoro-2-(1,1,2,2,3,3,3-heptafluoropropoxy)propanoic acid (HFPO-DA aka Gen-X) are present in low abundance in biosolids and sediments; 11Cl-PF3OUdS (90 % ΣPFAS) dominates one sediment, while two other sediments contain Gen-X at 59 and 69 % ΣPFAS respectively. This suggests unidentified local sources of these nPFAS at those sites.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"979 ","pages":"Article 179380"},"PeriodicalIF":8.2,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143863337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

{"title":"Isotopic evidence for long-term behaviour of fuel-derived uranium in soils of the Chornobyl Exclusion Zone","authors":"Maria Izquierdo ,&nbsp;Elizabeth Bailey ,&nbsp;Neil Crout ,&nbsp;Sergii Gashchak ,&nbsp;Andrei Maksimenko ,&nbsp;Scott Young ,&nbsp;George Shaw","doi":"10.1016/j.scitotenv.2025.179408","DOIUrl":"10.1016/j.scitotenv.2025.179408","url":null,"abstract":"<div><div>The accident at the Chornobyl Nuclear Power Plant (Ukraine) resulted in extremely high contamination in adjacent areas and radioactive plumes transported further afield. A distinctive feature was the direct release of uranium-rich reactor fuel fragments i.e. ‘hot particles’ to the environment. However, the fate of uranium in terrestrial ecosystems is poorly known in relation to short-lived radionuclides. We investigated the long-term behaviour of nuclear reactor particles across a range of soils and land-use types in the Chornobyl Exclusion Zone, a unique natural laboratory, following a well-defined pulse injection that can be precisely dated to the accident in 1986. We present autoradiographic evidence of the remains of fuel fragments in soils from moderate-to-highly contaminated areas. These discrete particles are still present after decades of weathering. Fuel particles have undergone limited vertical redistribution and are primarily located in topsoils, acting as non-uniformly distributed point sources of radioactive contamination. We also present data on ²³⁴U, ²³⁵U, ²³⁶U and ²³⁸U in topsoils and subsoils. Their concentrations were in general slightly higher in topsoils, particularly in soil profiles closer to the reactor; however the spatial distribution was extremely heterogeneous. A clear preponderance of ²³⁵U/²³⁸U ratios above natural values indicated the presence of fuel-derived uranium in the majority of topsoils. This was further confirmed by higher ²³⁴U/²³⁸U ratios in the most contaminated sites. The strongest evidence was provided by ²³⁶U/²³⁸U ratios, which were several orders of magnitude higher than native values in a number of soils. Differences in the isotopic composition of different solid fractionation extractions suggest that full equilibration between native and reactor-derived uranium has not been achieved on a decadal time-scale due to slow hot particle weathering rates. Estimations from ²³⁶U/²³⁸U ratios suggest that 7–77 % of the readily exchangeable uranium in soils was derived from spent fuel, whilst this source only accounted for 3–52 % of the total uranium in soil. Thus, isotopically enriched and irradiated uranium retains a greater potential to migrate, enter the trophic chain and interact with the ecosystem in the long-term than native uranium.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"979 ","pages":"Article 179408"},"PeriodicalIF":8.2,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143863336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

{"title":"Hydrological and geochemical controls of surface water and suspended sediment toxic metal fluxes from nearshore large coal ash pond","authors":"Stephen Anderson ,&nbsp;Natasha T. Dimova ,&nbsp;Dini Adyasari","doi":"10.1016/j.scitotenv.2025.179411","DOIUrl":"10.1016/j.scitotenv.2025.179411","url":null,"abstract":"<div><div>Toxic metals leached from ash coal ponds can pose a severe hazard to waterways and coastal areas. Observed toxic metal levels in surface waters near the largest ash pond in the Mobile-Tensaw Delta, Alabama, were the result of the interplay of multiple factors, including the specific chemical properties of individual metals and in situ environmental conditions driven by seasonal hydrological controls and flooding versus non-flooding conditions. We found that erosion and sediment resuspension after a significant rain event and flooding resulted in nearly double increase of major and trace metal concentrations in surface waters compared to non-flooding conditions. However, aluminium-iron (Al<img>Fe) co-precipitation and flocculation also controlled trace metal levels in surface water, especially during the dry season when seawater with higher pH and salinity from Mobile Bay propagated upstream. The highest arsenic (As) content in suspended sediments (44.6 mg/kg) was found near the Coal Power plant's discharge channel during the dry season. This level is similar to legacy contaminations found following the Kingston, TN ash spill (10 to 57 mg/kg). Higher river flow was associated with higher suspended sediment and suspended sediment-bound trace metal fluxes. However, when analyzing contaminated sediments near the ash pond, trace metal fluxes during the dry season exceeded the wet season, and ultimately, enrichment of As and Cd was observed near the discharge channel. These findings aim to promote research in similar environments impacted by coal ash and to more comprehensively understand the relationship between toxic metals' partitioning and seasonal environmental conditions within the Mobile-Tensaw Delta.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"979 ","pages":"Article 179411"},"PeriodicalIF":8.2,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143863338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

{"title":"Cascading droughts: Exploring global propagation of meteorological to hydrological droughts (1971–2001)","authors":"Amit Kumar ,&nbsp;Simon N. Gosling ,&nbsp;Matthew F. Johnson ,&nbsp;Matthew D. Jones ,&nbsp;Albert Nkwasa ,&nbsp;Aristeidis Koutroulis ,&nbsp;Hannes Müller Schmied ,&nbsp;Hong-Yi Li ,&nbsp;Hyungjun Kim ,&nbsp;Naota Hanasaki ,&nbsp;Rohini Kumar ,&nbsp;Wim Thiery ,&nbsp;Yadu Pokhrel","doi":"10.1016/j.scitotenv.2025.179486","DOIUrl":"10.1016/j.scitotenv.2025.179486","url":null,"abstract":"<div><div>An understanding of the spatiotemporal behaviour of Meteorological drought (MD) and Hydrological drought (HD) is crucial for analysing how drought propagation occurs. Here, drought events were treated as three-dimensional grid structures spanning space (latitude and longitude) and time. 31 years (1971–2001) of global MD and HD events were analysed for evidence of propagation, and the most severe 20 MD events explored in detail. From the Inter-Sectoral Impact Model Intercomparison Project (ISIMIP) data archive, precipitation data was used for identifying MD events and an ensemble of simulated runoff from several global hydrological models used for detecting HD events. A technique was developed based on overlapping of the spatial and temporal coverage of MD and HD events, to establish propagation, and to calculate several propagation features. In three dimensions, the transformation from MD to HD was characterised based on delayed instigation, elongated duration, and dampened intensity of the HD event. Additionally, pooling of MD events that resulted in one or multiple branched HD events were identified. Results indicate that minor MD events with short durations and small areas generally do not exhibit propagation. The frequency of HD events with drought duration of 6–12-months is higher than that of MD events with 6–12-month duration. Out of 1740 extreme MD events identified for the 31-year period, 272 events propagated and resulted in 395 extreme HD events. Propagation features for the 20 most severe MD events show substantial variation based on geographical location highlighting the influence of regional climatic and hydrological conditions. This study advances the understanding of global drought propagation mechanisms by addressing key methodological challenges and providing a structured framework for future large-scale drought assessments.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"979 ","pages":"Article 179486"},"PeriodicalIF":8.2,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143863436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

{"title":"Application of the application of the compact and useful PM2.5 instrument with gas sensors (CUPI-G) for high temporal and spatial resolution monitoring with weather factor integration","authors":"Anuva Bhowmick ,&nbsp;Suwanna Kitpati Boontanon ,&nbsp;Louise Olsen-Kettle ,&nbsp;Yali Li ,&nbsp;Narin Boontanon ,&nbsp;Yosuke Sakamoto ,&nbsp;Kentaro Murano ,&nbsp;Yoshizumi Kajii ,&nbsp;Ranjna Jindal","doi":"10.1016/j.scitotenv.2025.179361","DOIUrl":"10.1016/j.scitotenv.2025.179361","url":null,"abstract":"<div><div>Low-cost air pollution sensors have emerged as promising tools for monitoring air quality with high temporal and spatial resolution, especially in suburban areas of developed countries that are transitioning towards urbanization where air quality can vary significantly. The motivation for this research is to develop affordable, portable air quality sensors for suburban areas with limited access to expensive traditional monitoring equipment. This study utilized the Compact and Useful PM<span><math><msub><mrow></mrow><mn>2.5</mn></msub></math></span> Instrument with gas sensors (CUPI-G), a low-cost device designed to monitor PM<span><math><msub><mrow></mrow><mn>2.5</mn></msub></math></span>, CO, NO, NO<span><math><msub><mrow></mrow><mn>2</mn></msub></math></span>, and O<span><math><msub><mrow></mrow><mi>x</mi></msub></math></span> (from which O<span><math><msub><mrow></mrow><mn>3</mn></msub></math></span> was calculated). The high temporal resolution data in Kyoto, Japan, averaged over 31 s, revealed seasonal variations in pollutant levels. O<span><math><msub><mrow></mrow><mn>3</mn></msub></math></span> and CO concentrations were highest in summer, at 29.28 ppb and 95.33 ppb, respectively, and lowest in autumn, with values of 20.03 ppb for O<span><math><msub><mrow></mrow><mn>3</mn></msub></math></span> and 81.18 ppb for CO. Conversely, PM<span><math><msub><mrow></mrow><mn>2.5</mn></msub></math></span> levels were lowest in summer (4.95 μg/m<span><math><msup><mrow></mrow><mn>3</mn></msup></math></span>) and highest in autumn (5.08 μg/m<span><math><msup><mrow></mrow><mn>3</mn></msup></math></span>). Nearly a month of spatial analysis in three different areas (defined as residential, road, and educational) showed PM<span><math><msub><mrow></mrow><mn>2.5</mn></msub></math></span> concentrations were highest in residential areas, averaging hourly 21.53 μg/m<span><math><msup><mrow></mrow><mn>3</mn></msup></math></span>, while CO and O<span><math><msub><mrow></mrow><mn>3</mn></msub></math></span> levels were elevated near roadways, with concentrations of 188.02 ppb, and 46.62 ppb, respectively. This research innovatively employed low-cost sensor technology to deliver high-resolution air quality data and demonstrated that wind speed and direction along with temperature were significant factors contributing to suburban air pollution, providing insights into potential pollution sources, and meteorological risk factors for elevated pollution levels.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"979 ","pages":"Article 179361"},"PeriodicalIF":8.2,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143853876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

{"title":"Letter to the Editor regarding “Methodological framework for life cycle assessment of sustainable aviation (SA) systems”","authors":"Michael P. Weinold ,&nbsp;Russell McKenna","doi":"10.1016/j.scitotenv.2025.179314","DOIUrl":"10.1016/j.scitotenv.2025.179314","url":null,"abstract":"","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"979 ","pages":"Article 179314"},"PeriodicalIF":8.2,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143853874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}