Atmospheric Environment最新文献

{"title":"Assessment of multi-year mercury concentration measurements over the South African highveld: a case study of 2016–2023 selected dataset","authors":"M.D. Belelie ,&nbsp;B. Moiloa ,&nbsp;A. Moatshe ,&nbsp;N. Ayob ,&nbsp;R.P. Burger ,&nbsp;S.J. Piketh","doi":"10.1016/j.atmosenv.2025.121261","DOIUrl":"10.1016/j.atmosenv.2025.121261","url":null,"abstract":"<div><div>Mercury (Hg) is a pollutant that adversely affects all regions worldwide. This study investigates how Gaseous Elemental Mercury (GEM), the predominant form of Hg, has changed over the Southern African Highveld Priority Area (SAHPA) since 2009. The SAHPA is one of the regions of interest regarding South African air quality, given its frequent and recurrent occurrence of pollutant concentrations exceeding the country's prescribed thresholds. The present study measured GEM concentrations and other South African criteria pollutants and meteorological parameters between 2016 and 2023 at Elandsfontein, an industrially/anthropogenically influenced monitoring site on the SAHPA. Following quality control procedures, major jumps and shifts were noticed in some of the data for 2016 and 2019, as well as all of the 2017 and 2018 data, these data were excluded from the analysis. The mean hourly GEM concentrations during the monitoring period at Elandsfontein ranged from 0.10 to 71.22 ng/m³ with a mean concentration of 1.74 ± 1.62 ng/m³. The observed mean GEM concentrations exhibit characteristic seasonal patterns, with the highest levels in winter (1.94 ± 2.00 ng/m³), spring (1.83 ± 1.85 ng/m³), autumn (1.79 ± 1.1.55 ng/m³), and summer (1.48 ± 1.08 ng/m³). The diurnal variation of GEM at Elandsfontein shows a distinct pattern, with concentrations peaking before sunrise and dipping in the late afternoon. High GEM concentrations (&gt;6 ng/m³) are linked to air masses from the western interior, indicating significant local emissions. Pollution events peak between July and October 2016–2023, likely due to increased domestic fuel combustion and biomass burning during the dry season, contributing to elevated atmospheric pollutant levels. An Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) analysis showed that eastern air masses were predominantly ‘clean’ and ocean-derived, emphasising the significant influence of local and regional emissions of GEM surrounding the site. These findings highlight the complex interaction of meteorology and pollutant emissions in shaping GEM levels. Further research is needed to understand better how GEM variations are influenced by interactions with other pollutants, meteorology, halogens, and ozone, particularly in the southern hemisphere.</div></div>","PeriodicalId":250,"journal":{"name":"Atmospheric Environment","volume":"355 ","pages":"Article 121261"},"PeriodicalIF":4.2,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144068892","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}

{"title":"Eighteen years of daily PM2.5 predictions (2005–2022) for a region of western Canada: Machine learning and satellite inputs for applications in rural health","authors":"Miranda Doris ,&nbsp;Amira Aker ,&nbsp;Élyse Caron-Beaudoin ,&nbsp;Coreen Daley ,&nbsp;Meredith Franklin ,&nbsp;M.G.M. Milani ,&nbsp;Margaret J. McGregor ,&nbsp;Jannie Leung ,&nbsp;Laura Minet ,&nbsp;Ulrike Meyer ,&nbsp;Lisa A. Ronald ,&nbsp;Tim K. Takaro ,&nbsp;Willow Thickson ,&nbsp;Heather L. MacLean ,&nbsp;Marianne Hatzopoulou","doi":"10.1016/j.atmosenv.2025.121281","DOIUrl":"10.1016/j.atmosenv.2025.121281","url":null,"abstract":"<div><div>Northeastern British Columbia is a rural and remote region in Western Canada that is experiencing rapid growth in unconventional oil and gas development (UOGD) and increasingly severe wildfire impacts. Air quality is a concern for the communities in the region, but there is very limited air pollution monitoring. To address this gap, this study explores the application of machine learning to the satellite-based estimates of aerosols and meteorology from the Modern-Era Retrospective analysis for Research and Applications, Version 2 (MERRA-2) to estimate daily fine particulate matter (PM_2.5) at a spatial and temporal resolution relevant for ongoing health studies. The random forest model was trained and validated on the ground-level air quality monitoring network from 2013 to 2022 and then used to predict and backcast daily concentrations in the study area at a 50-km resolution from 2005 to 2022. The predictions were then compared to global and provincial health guidelines and analyzed for annual trends. Our model achieved a 10-fold cross validation root mean square error (RMSE) and R² of 3.89 μg/m³ and 0.77, and test scores of 3.02 μg/m³ and 0.78. Between 2006 and 2021, the number of days exceeding PM_2.5 guidelines increased by 122 %, and the person-days exceeding the guideline increased by 166 %. At our spatial resolution, we find that wildfire is a more important variable in predicting daily PM_2.5 concentrations compared to UOGD. We demonstrate the application of satellite reanalysis products to estimate ground-level PM_2.5 in a rural area of Canada with minimal ground monitoring stations.</div></div>","PeriodicalId":250,"journal":{"name":"Atmospheric Environment","volume":"355 ","pages":"Article 121281"},"PeriodicalIF":4.2,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144068890","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}

{"title":"Trends of anthropogenic sources in a Southeastern Mediterranean coastal site over five years","authors":"D. Tobarra ,&nbsp;E. Yubero ,&nbsp;A. Carratala","doi":"10.1016/j.atmosenv.2025.121279","DOIUrl":"10.1016/j.atmosenv.2025.121279","url":null,"abstract":"<div><div>A five-year study of PM₁₀ concentrations was carried out from 2017 to 2021 in the port of a Mediterranean coastal city, with an annual collection rate approaching 50 % of the days. The chemical composition of the PM₁₀ dataset was analyzed to assess changes in both natural sources and the effects of regulations and mitigation measures on PM₁₀ and its precursors. While overall PM₁₀ concentrations remained stable over the study period, the analysis suggests that mitigation measures have contributed to a reduction in daily exceedances of PM₁₀ levels in the area.</div><div>Using positive matrix factorization, seven distinct PM₁₀ sources were identified and ranked by their contribution: road traffic, bulk materials + dust resuspension, aged sea salt, Saharan intrusion, fresh sea salt, shipping emissions, and ammonium sulphate. Further analysis showed decreasing trends over the five-year period for road traffic, shipping, and ammonium sulphate sources, and increasing trends for Saharan intrusion and aged sea salt sources. No significant trends were observed for the bulk materials + dust resuspension and fresh sea salt sources. Although the measures taken by the Port of Alicante did not lead to a reduction in the PM₁₀ average concentrations of this source, they did reduce the number of exceedance episodes. On the other hand, the efforts to reduce emissions from shipping and traffic succeeded in reducing the contribution of these sources.</div></div>","PeriodicalId":250,"journal":{"name":"Atmospheric Environment","volume":"355 ","pages":"Article 121279"},"PeriodicalIF":4.2,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143928845","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}

{"title":"High resolution source-resolved PM2.5 spatial distribution and human exposure in a large urban area","authors":"Evangelia Siouti ,&nbsp;Ksakousti Skyllakou ,&nbsp;David Patoulias ,&nbsp;Eleni Athanasopoulou ,&nbsp;Nikolaos Mihalopoulos ,&nbsp;Jeroen Kuenen ,&nbsp;Spyros N. Pandis","doi":"10.1016/j.atmosenv.2025.121277","DOIUrl":"10.1016/j.atmosenv.2025.121277","url":null,"abstract":"<div><div>Chemical transport models often use moderate spatial resolution to simulate atmospheric pollution, thereby limiting the model's ability to represent variations in urban areas. Additionally, the contributions of individual sources of pollution transported to the urban areas of interest from elsewhere are rarely quantified. In this study, we developed an approach to simulate air quality, focusing on PM_2.5 (particulate matter with a diameter lower than 2.5 μm), and its local and regional sources at high spatial resolution of 1 × 1 km². The approach is applied in the largest city of Greece, Athens. The PMCAMx chemical transport model is employed in combination with the source apportionment algorithm, PSAT (Particle Source Apportionment Technology), to quantify the concentrations and sources of PM_2.5, organic aerosol (OA) and elemental carbon (EC) for a typical summer and winter month. A novel approach is developed, allowing the quantification of the contributions of sources not only inside the simulated urban area but also of the regional sources located outside. Model predictions were combined with population distribution data to provide estimations for human exposure not only to total PM_2.5 concentrations but also to specific sources within the city. Residential biomass burning and transportation were found to be the dominant local sources of PM_2.5 exposure. The higher resolution (1 × 1 km²) offered a more detailed representation of PM_2.5 spatial variability than a coarser one (36 × 36 km²). This underscores the importance of capturing local sources in specific areas of the domain. The proposed approach can be used to provide estimates of human exposure to specific local and regional sources of primary and secondary PM_2.5 in an urban area.</div></div>","PeriodicalId":250,"journal":{"name":"Atmospheric Environment","volume":"355 ","pages":"Article 121277"},"PeriodicalIF":4.2,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143934566","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}

{"title":"A novel approach for quantifying elongated airborne mineral particles (EMPs) using an automated scanning electron microscope (SEM)","authors":"Anushka Elangasinghe ,&nbsp;Hamesh Patel ,&nbsp;Kim N. Dirks ,&nbsp;Ayrton Hamilton ,&nbsp;Wenxia (Wendy) Fan ,&nbsp;Shuoyu Chen ,&nbsp;Nick Talbot ,&nbsp;Shanon Lim ,&nbsp;Jed Januch ,&nbsp;Martin Brook ,&nbsp;Brett Wells ,&nbsp;David E. Williams ,&nbsp;Perry Davy ,&nbsp;Woodrow Pattinson ,&nbsp;Jennifer A. Salmond","doi":"10.1016/j.atmosenv.2025.121217","DOIUrl":"10.1016/j.atmosenv.2025.121217","url":null,"abstract":"<div><div>Exposure to carcinogenic elongated mineral particles (EMPs), such as erionite, found in rocks and released into the air by construction, quarrying, or roading activities, poses a significant possible health risk due to their respirable size and potential for airborne dispersion. The detection of EMPs in the air is typically achieved by filter sampling and subsequent examination using a range of microscopic methods, including phase contrast microscopy (PCM) and scanning electron microscope (SEM). Such analyzes require the manual searching for fibers through many image fields and are both labor-intensive and time-consuming. Moreover, these methods do not result in conclusive particle identification, limiting their effectiveness in large-scale monitoring programmes. This paper introduces a novel methodology for the automated detection and quantification of EMPs using an automated SEM with energy dispersive spectroscopy (EDS) to identify fibers on pre-sampled polycarbonate (PC) filters. This method provides a streamlined workflow for fiber identification based on their size, morphology, and elemental composition. Performance evaluation (PE) standards were prepared by spiking filters with a series of known concentrations of one EMP, namely erionite, and fiber concentrations were measured using the automated SEM-EDS approach. Our results demonstrate a linear relationship (R² = 0.98∗∗∗) between the erionite mass percentage in a bulk sample and the fiber counts in an aerosolized air volume, with a detection limit of 7.4 f/cc. The approach can be optimized based on the time available for analysis and the choice of detection limit suitable for the specific site and application. Additionally, the automated SEM-EDS method has been applied to real-world air samples collected from Auckland, New Zealand, showing promising results for fiber detection in complex environmental matrices.</div></div>","PeriodicalId":250,"journal":{"name":"Atmospheric Environment","volume":"354 ","pages":"Article 121217"},"PeriodicalIF":4.2,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143905924","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}

{"title":"Characterization of freshly-emitted particles from poplar wood burning: OC/EC, morphology, and elemental analysis under varying ignition temperatures","authors":"Junjie Cai ,&nbsp;Jiaming Wu ,&nbsp;Yingjun Chen","doi":"10.1016/j.atmosenv.2025.121271","DOIUrl":"10.1016/j.atmosenv.2025.121271","url":null,"abstract":"<div><div>Biomass burning is a significant source of atmospheric pollution. While existing studies have largely focused on the comprehensive analysis of biomass burning particulate matter (PM), the variations in particle size, morphology, and mixing characteristics under different burning conditions remain to be thoroughly investigated. In this study, we collected PM emitted from poplar wood burning in a quartz tube furnace at three different ignition temperatures (400, 600, and 800 °C), aiming to analyze the chemical composition and single-particle characteristics of PM under varying ignition temperatures. OC/EC analysis revealed that the OC emission factor at 400 °C (35.05 ± 2.11 g/kg) was an order of magnitude higher than those at 600 °C (1.00 ± 0.21 g/kg) and 800 °C (1.57 ± 0.93 g/kg), while the EC emission factor increased by an order of magnitude with rising temperature, from 0.41 ± 0.03 g/kg at 400 °C to 4.03 ± 0.94 g/kg at 800 °C. Further observation under TEM-EDS showed that carbonaceous particles were the predominant components of PM emitted from poplar wood burning at all temperatures. At 400 °C, over 95 % of the particles were primarily amorphous organic matter, with only a small number of EC particles formed. At 600 °C, 72.6 % of the emitted particles were aggregated black carbon particles, 17.5 % were tar-balls, and the remaining 9.9 % were monomeric organic matter particles with extremely small particle sizes. At 800 °C, 93.8 % of the particles were two types of black carbon particles with varying monomer particle sizes and nearly bare surfaces. Our experimental results indicate that burning temperature is a crucial factor leading to differences in the composition, morphology, and elemental composition of biomass-emitted particles. Furthermore, they serve as a reminder that the significant variations caused by different burning temperatures should be considered when estimating biomass burning, especially the increasingly widespread wildfire burning.</div></div>","PeriodicalId":250,"journal":{"name":"Atmospheric Environment","volume":"355 ","pages":"Article 121271"},"PeriodicalIF":4.2,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143924683","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}

{"title":"Temperature dependent rate constants for the gas phase reactions of OH radical with first generation products of monoterpenes oxidation: nopinone, limononaldehyde, myrtenal and ketolimonene","authors":"M. Fakih,&nbsp;A. Abou-Dib,&nbsp;A. Chakir,&nbsp;E. Roth","doi":"10.1016/j.atmosenv.2025.121259","DOIUrl":"10.1016/j.atmosenv.2025.121259","url":null,"abstract":"<div><div>Rate constants for the gas-phase reactions of hydroxyl radical with first-generation oxidation products of monoterpenes, namely nopinone, ketolimonene, myrtenal and limononaldehyde have been measured using a relative rate technique over the temperature range 298–353 K and atmospheric pressure of air in a 63 L atmospheric chamber. The experiments were conducted using different analytical techniques and different reference compounds. The rate constants obtained at 298 ± 2 K (in units of 10⁻¹¹ cm³ molecule^-l s^-l) are: nopinone 1.82 ± 0.20; ketolimonene 13.2 ± 1.30; myrtenal 5.97 ± 0.80; and limononaldehyde 5.17 ± 0.44. A very weak temperature dependence in the temperature range 298–353 K was obtained for nopinone and limononaldehyde. Meanwhile, ketolimonene and myrtenal show a negative dependence over the temperature range studied. Atmospheric lifetimes towards OH radicals deduced from room temperature rate constants prove that once emitted into the atmosphere, all studied compounds can be degraded in less than one day and thus contribute to the photochemical pollution on a local or regional scale.</div></div>","PeriodicalId":250,"journal":{"name":"Atmospheric Environment","volume":"356 ","pages":"Article 121259"},"PeriodicalIF":4.2,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144107253","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}

{"title":"Determination of dust storm height using weak beam photons from ICESat-2 and relating with vertical wind profile","authors":"Giribabu Dandabathula ,&nbsp;Subham Roy ,&nbsp;Omkar Ghatage ,&nbsp;Apurba Kumar Bera ,&nbsp;Sushil Kumar Srivastav","doi":"10.1016/j.atmosenv.2025.121276","DOIUrl":"10.1016/j.atmosenv.2025.121276","url":null,"abstract":"<div><div>Studies related to vertical probing of dust aerosols during an active episode of a dust storm will enable quantification of the dust load and unleash the mechanics of dust transport. Space-borne sensors, especially LiDAR-based sensors, are proven to detect the vertical concentration of dust aerosols; practically, essaying the suspended aerosols in the troposphere has been well recorded by the Cloud-Aerosol LIdar and Infrared Pathfinder Satellite Observations (CALIPSO) mission, which retired in 2023. This research is motivated to utilize NASA ICESat-2's photon data as a substitute for the CALIPSO mission to study the vertical structure of an active dust storm. This research suggests using photons from ICESat-2's weak beam over the strong beam to successfully profile aerosols suspended in the atmosphere. Technical validation by comparing the heights of the dust aerosols retrieved by attenuated photons from ICESat-2 and 532 nm total attenuated backscatter of Cloud-Aerosol LIdar with Orthogonal Polarization (CALIOP) sensor yielded a good agreement of the results from both sensors. Further, analyzing the vertical wind profiles from ECMWF Reanalysis v5 (ERA5) data for the ten test sites with active dust storms confirms that the lift force of wind speed is greater than 5 m/s, while the drag force of the wind speed above the vertical structure having the dust aerosols is always greater than the lift force.</div></div>","PeriodicalId":250,"journal":{"name":"Atmospheric Environment","volume":"354 ","pages":"Article 121276"},"PeriodicalIF":4.2,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143903652","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}

{"title":"A twin site study of size-resolved composition, source apportionment and health impacts of aerosol particles in Morocco","authors":"Nabil Deabji ,&nbsp;Khanneh Wadinga Fomba ,&nbsp;Laurent Poulain ,&nbsp;Chaoyang Xue ,&nbsp;Abdelwahid Mellouki ,&nbsp;Hartmut Herrmann","doi":"10.1016/j.atmosenv.2025.121273","DOIUrl":"10.1016/j.atmosenv.2025.121273","url":null,"abstract":"<div><div>This study provides new information on the chemical composition, source contributions, and health implications of size-resolved ultrafine, fine, and coarse mode particles through a comparative assessment at two contrasting sites in Morocco: the rural Atlas Mohammed V (AMV) observatory and the urban city of Fez. During September–October 2019, PM₁₀ concentrations at Fez (32 ± 7.8 μg m⁻³) were nearly three times higher than at AMV (12 ± 6.4 μg m⁻³), with urban ultrafine particles (&lt;0.1 μm) contributing 30 % of PM₁₀ compared to only 12 % at the AMV observatory. Source apportionment results revealed that vehicular exhaust was the main contributor (34 %) to ultrafine particles at FEZ, while a total traffic-related factor, including both exhaust and non-exhaust emissions, dominated at AMV (37 %), indicating long-range transport of urban traffic pollutants. Both sites showed substantial biomass burning influence (ca. 40 %) in fine particles and mineral dust dominance (&gt;50 %) in coarse fractions (1.2–10 μm). Source contributions varied across different air mass origins, suggesting local emissions as primary drivers of pollution, with long-range transport predominantly enhancing background concentrations rather than introducing new source types in the studied regions. Diagnostic ratios indicated that fresh traffic emissions dominated PAH composition in Fez, while mixed petroleum and combustion sources were the dominant sources at AMV. Health risk assessments revealed elevated non-carcinogenic risks in Fez, particularly from traffic-related metals (Ni, Zn). These findings address critical data gaps in North African air quality research and provide essential baseline information to support targeted emission control strategies and public health policies in rapidly urbanizing regions.</div></div>","PeriodicalId":250,"journal":{"name":"Atmospheric Environment","volume":"355 ","pages":"Article 121273"},"PeriodicalIF":4.2,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143942843","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}

{"title":"Air pollution and adipokines: a systematic review","authors":"A.S. Espindola ,&nbsp;B. Von Leiss ,&nbsp;M.C.C. Kuschnir ,&nbsp;I.M. Meyer ,&nbsp;P.H. da Conceição ,&nbsp;I.G.R. Giannini ,&nbsp;R.J. Buralli ,&nbsp;E. Faerstein","doi":"10.1016/j.atmosenv.2025.121272","DOIUrl":"10.1016/j.atmosenv.2025.121272","url":null,"abstract":"<div><h3>Background</h3><div>Air pollution has been linked to negative obesity-related outcomes, and alterations in adipokine levels appear to mediate this relationship.</div></div><div><h3>Objectives</h3><div>This systematic review investigated the influence of outdoor air pollution on adipokine levels.</div></div><div><h3>Methods</h3><div>A systematic literature search of the PubMed, Embase, Web of Science, and Scopus databases for studies that assessed the relationship between air pollution and adipokine levels, published up to February 2023, was performed. Other databases included the Elton B. Stephens Company (EBSCO), a provider of research databases, and the Brazilian Library of Theses and Dissertations (BDTD).</div></div><div><h3>Results</h3><div>Eighty-two studies, published between 2006 and 2023, were included in this systematic review, among which 67.4 % were from the United States (34.9 %) and China (32.5 %), 39.8 % were panel studies, 36.1 % were cross-sectional and 21.7 % were cohort studies. Most (73.5 %) studies involved populations with multiple comorbidities, 59.0 % focused on evaluating particulate matter 2.5 (PM_2.5), and the majority (71.1 % [n = 59]) measured interleukin (IL)-6, tumor necrosis factor-alpha (TNF-<em>α</em>) (59.0 % [n = 49]), leptin (13.3 % [n = 11]), and adiponectin (10.8 % [n = 9]) levels. Covariates most frequently included in the models were age (75.9 %), body mass index (69.9 %), sex (63.9 %), smoking (42.2 %), education (39.8 %), and ambient temperature (38.6 %) and humidity (26.5 %). Of the included studies, 56.1 % found statistically significant, directly positive associations between outdoor exposure to air pollution and at least one of IL-6, TNF-<em>α</em>, adiponectin, leptin, and chemokine C-C motif ligand 2 levels.</div></div><div><h3>Conclusion</h3><div>Outdoor air pollution was found to be associated with increased adipokine levels in most studies.</div></div>","PeriodicalId":250,"journal":{"name":"Atmospheric Environment","volume":"356 ","pages":"Article 121272"},"PeriodicalIF":4.2,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144071086","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}