Environment International最新文献

{"title":"Effects of intermediate and long-term exposure to ambient air pollution and temperature on hospital admissions with second cardiovascular events among medicare beneficiaries","authors":"Mahdieh Danesh Yazdi ,&nbsp;Yaguang Wei ,&nbsp;Qian Di ,&nbsp;Weeberb J. Requia ,&nbsp;Adjani A. Peralta ,&nbsp;Francesca Dominici ,&nbsp;Joel D. Schwartz","doi":"10.1016/j.envint.2025.109617","DOIUrl":"10.1016/j.envint.2025.109617","url":null,"abstract":"<div><h3>Background</h3><div>Air pollution has been linked to cardiovascular diseases (CVDs). In this study, we assess whether exposure to air pollutants and ambient temperature is associated with repeated admissions with adverse cardiovascular outcomes.</div></div><div><h3>Methods</h3><div>We used data from Medicare beneficiaries between 2000 and 2016 to look at the effects of intermediate and long-term exposure to ambient PM_2.5, NO₂, O₃, and temperature on second admissions with myocardial infarction (MI) and ischemic stroke. We derived exposure levels from high-resolution spatiotemporal models. We adjusted for demographic, socioeconomic, and access-to-care characteristics. Cox proportional hazards models were used to assess these relationships. We further looked at the effects of exposure at lower air pollution concentrations defined as PM_2.5 &lt; 9 µg/m³, NO₂ &lt; 25 ppb, and O₃ &lt; 50 ppb.</div></div><div><h3>Results</h3><div>PM_2.5 and NO₂ increased the hazard of second admissions with both MI and stroke. For PM_2.5, the effects were more pronounced for longer exposure time windows. Each µg/m³ increase in one-year PM_2.5 levels before the first admission increased the hazard of a second admission with MI by 1.1% (95% CI: 1.0%-1.2%) and stroke by 0.9% (95% CI: 0.8%-1.1%). O₃ exhibited a slight protective effect for both outcomes. Higher temperatures were associated with a higher hazard of second admissions with stroke. These results persisted at lower concentrations.</div></div><div><h3>Conclusion</h3><div>Our study demonstrates that exposures to PM_2.5 and NO₂ are associated with increased rates of second admissions with MIs and strokes. Higher temperatures were also further associated with an increase in the rate of second admissions with stroke.</div></div>","PeriodicalId":308,"journal":{"name":"Environment International","volume":"202 ","pages":"Article 109617"},"PeriodicalIF":10.3,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144479604","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":"Potential systemic availability classification of chemicals for safety assessment","authors":"René Geci ,&nbsp;Alicia Paini ,&nbsp;Andrew P Worth ,&nbsp;Lars Kuepfer ,&nbsp;Stephan Schaller","doi":"10.1016/j.envint.2025.109636","DOIUrl":"10.1016/j.envint.2025.109636","url":null,"abstract":"<div><div>The assessment of chemical safety is essential for protecting human health, yet current approaches have severe limitations. They are unable to address the rapidly growing number of substances requiring evaluation and further rely on animal testing, which the public expects to be phased out for ethical reasons. To address this, the European Partnership for Alternative Approaches to Animal Testing (EPAA) proposed the use of a novel framework for the classification of systemic toxicity based on new approach methodologies. One dimension of this framework is the grouping of substances into different classes of Potential Systemic Availability (PSA) concern (low, medium, high). But so far it remained conceptually and practically unclear how this classification can be achieved. Here, we outline the theoretical considerations for a health-protective definition of PSA concern classes and present a method for the quantitative evaluation of this property. Using high-throughput physiologically based kinetic modelling, we are able to classify the PSA concerns of 139 out of 150 EPAA NAM Designathon compounds. Further, we manually annotate these compounds to evaluate the plausibility of predicted classifications against expert judgement. Our results outline under which circumstances it is appropriate to prioritise or deprioritise chemicals due to their toxicokinetic properties. However, we find that most compounds cannot be assessed on their PSA alone and need to be considered medium PSA concern so that classification into any overall systemic toxicity concern class remains possible. Future integration of bioactivity data will be necessary to fully judge the utility of our method and of the entire framework.</div></div>","PeriodicalId":308,"journal":{"name":"Environment International","volume":"202 ","pages":"Article 109636"},"PeriodicalIF":10.3,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144479539","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":"Exploring the relationship between the androgen receptor and structural configuration of benzophenones: a combination of computational analysis and laboratory models","authors":"Da-Hyun Jeong, Rajesh Kumar Pathak, Da-Woon Jung, Jun-Mo Kim, Hee-Seok Lee","doi":"10.1016/j.envint.2025.109632","DOIUrl":"https://doi.org/10.1016/j.envint.2025.109632","url":null,"abstract":"This study explored the interactions between benzophenones (BPs) and androgen receptors (AR) using computational and experimental approaches. BPs are potential endocrine disruptors that are commonly found in cosmetics, such as sunscreen. Molecular docking and molecular mechanics with generalized Born and surface area continuum solvation calculations revealed that dihydroxylation form of BP-1, BP-2 had higher binding affinities to AR compared with BP-1, BP-3. Key interactions with residues, such as Gln711 and Asn705, were identified. Density functional theory analysis revealed that BP-2 has a balanced energy gap, which contributes to its stability and reactivity. Cell-based assays validated these computational results, showing that BP-2 had stronger AR antagonistic effect than BP-1 and BP-3. Furthermore, BP-2 enhances the AR-mediated luciferase signal at specific concentration through inducing dimerization of cytosolic AR, whereas BP-1 and BP-3 had no AR agonistic effects. These changes in AR-mediated transcriptional activation activity were observed in flutamide and hydroxyflutamide as well. As expected, changes in AR-mediated endocrine disrupting potential due to configurational modification of BP-1 to BP-2 by dihydroxylation resulted in whole AR protein expression. These findings suggest that BP-2 is a strong AR modulator and a potential endocrine disruptor, offering insights into how similar compounds may interact with AR.","PeriodicalId":308,"journal":{"name":"Environment International","volume":"7 1","pages":""},"PeriodicalIF":11.8,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144371068","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":"Exposure to “Forever Chemical” perfluorooctanoic acid induces depression-like behaviors in mice by activating the HPA axis","authors":"Ya Wang ,&nbsp;Yuning Chen ,&nbsp;Houlin Chen ,&nbsp;James N Samsom ,&nbsp;Minfei Shu ,&nbsp;Xuehui Gao ,&nbsp;Qiyu Li ,&nbsp;Kangmin Chen ,&nbsp;Le Wang ,&nbsp;Fang Liu","doi":"10.1016/j.envint.2025.109631","DOIUrl":"10.1016/j.envint.2025.109631","url":null,"abstract":"<div><div>Perfluorooctanoic acid (PFOA), an environmental endocrine disruptor, has been found to increase the expression of corticotropin-releasing factor (CRF) in the paraventricular nucleus (PVN). In this study, adult male mice were given PFOA by oral gavage (p.o.) to evaluate whether it disrupts systems related to mood disorders. PFOA exposure (5 mg/kg) for 10 consecutive days caused depression-like behaviors in male mice. We measured increased corticosterone in serum and in the hippocampus of PFOA-exposed mice, which were linked to enhanced CRF expression measured in the PVN. Elevated corticosterone was associated with reductions in glucocorticoid receptor (GR) protein expression within the hippocampus. CRFR1 antagonist injected into the PVN and intracerebroventricular (i.c.v.) GR antagonist both reduced depression-like behaviors, respectively. In addition, NMDA-dependent Schaeffer collateral-CA3 synaptic transmission in PFOA-exposed mice was disrupted. Synaptic deficits could be corrected by either CRFR1 or GR antagonists. In summary, we found exposure of male mice to PFOA enhances CRF expression, which then activates the HPA axis to disrupt GR expression in the hippocampus, leading to depression-like behaviors. This data is relevant for understanding the potential harmful health effects of PFOA.</div></div>","PeriodicalId":308,"journal":{"name":"Environment International","volume":"202 ","pages":"Article 109631"},"PeriodicalIF":10.3,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144371058","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":"Meet-in-the-middle meets multi-omics identifying molecular signatures of environmental drivers of childhood overweight","authors":"Congrong Wang ,&nbsp;Brigitte Reimann ,&nbsp;Tim S Nawrot ,&nbsp;Dries S Martens ,&nbsp;John Wright ,&nbsp;Rosemary McEachan ,&nbsp;Johanna Lepeule ,&nbsp;Wenlun Yuan ,&nbsp;Leda Chatzi ,&nbsp;Marina Vafeiadi ,&nbsp;Regina Grazuleviciene ,&nbsp;Sandra Andrusaityte ,&nbsp;Oliver Robinson ,&nbsp;Jordi Sunyer ,&nbsp;Hector Keun ,&nbsp;Chung-Ho E. Lau ,&nbsp;Alexandros P. Siskos ,&nbsp;Muireann Coen ,&nbsp;Eva Borràs ,&nbsp;Eduard Sabidó ,&nbsp;Rossella Alfano","doi":"10.1016/j.envint.2025.109630","DOIUrl":"10.1016/j.envint.2025.109630","url":null,"abstract":"<div><h3>Background</h3><div>Obesity is a multi-cause chronic disease recognized across the lifespan, with childhood obesity prevalence rising over the past decades. Although exposome-wide association studies have identified early-life environmental drivers of child obesity, and explored the multi-omics signatures of the exposome of children, it is understudied whether the combined effects of multiple exposures are potentially mediated by multi-omics.</div></div><div><h3>Methods</h3><div>Within the Human Early Life Exposome (HELIX) project, 1041 mother–child pairs were surveyed for a wide range of environmental exposures including over 354 prenatal and childhood exposures. Multi-omics molecular features were measured during childhood, encompassing the blood methylome and transcriptome, plasma proteins and urinary and serum metabolites. Exposome and multi-omics features were integrated into latent factors by Multi-omics Factor Analysis, based on which structural equation modelling was used to assess whether multi-omics mediated associations between exposome and child body mass index (BMI).</div></div><div><h3>Results</h3><div>Key findings included: (i) prenatal nutrition, exercise, and passive smoking influencing BMI via DNA methylation of <em>HOXA5</em> and <em>Tenascin XB</em>; (ii) childhood exposure to PCBs and phenols linked with BMI through inflammation and coagulation pathways; and (iii) childhood PCB and dietary exposures associated with BMI via immune pathways.</div></div><div><h3>Conclusions</h3><div>This novel untargeted workflow elucidated biological mechanisms linking environmental exposures to child obesity, potentially supporting targeted public health interventions.</div></div>","PeriodicalId":308,"journal":{"name":"Environment International","volume":"202 ","pages":"Article 109630"},"PeriodicalIF":10.3,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144370936","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":"High-resolution modelling of particulate matter chemical composition over Europe: brake wear pollution","authors":"Abhishek Upadhyay ,&nbsp;Jianhui Jiang ,&nbsp;Yun Cheng ,&nbsp;Petros Vasilakos ,&nbsp;Ying Chen ,&nbsp;Daniel Trejo Banos ,&nbsp;Benjamin Flückiger ,&nbsp;Manousos I. Manousakas ,&nbsp;André S.H. Prévôt ,&nbsp;Robin L. Modini ,&nbsp;Ana Sánchez de la Campa ,&nbsp;Andrea Schemmel ,&nbsp;Andrés Alastuey ,&nbsp;Benjamin Bergmans ,&nbsp;Célia A. Alves ,&nbsp;Christoph Hueglin ,&nbsp;Cristina Colombi ,&nbsp;Cristina Reche ,&nbsp;Daniel Sánchez-Rodas ,&nbsp;Dario Massabò ,&nbsp;Imad El-Haddad","doi":"10.1016/j.envint.2025.109615","DOIUrl":"10.1016/j.envint.2025.109615","url":null,"abstract":"<div><div>In today’s rapidly evolving society, the sources of atmospheric particulate matter (PM) emissions are shifting significantly. Stringent regulations on vehicle tailpipe emissions, in combination with a lack of control of non-exhaust vehicular emissions, have led to an increase in the relative contribution of non-exhaust PM in Europe. This study analyzes the spatial distribution, temporal trends, and impacts of brake wear PM pollution across Europe by modeling copper (Cu) concentrations at a high spatial resolution of ∼250 m which is a key tracer of brake-wear emissions. We integrated coarse-resolution brake-wear Cu from CAMx chemical transport model and high-resolution land use data into a random forest (RF) model to predict Cu concentrations at ∼250 m over whole of continental Europe. The RF model was trained using an unprecedented dataset of over 50,000 daily Cu measurements from 152 sites. It corrected CAMx underestimation and downscaled Cu to a higher spatial resolution. In validation, the model showed robust spatial and temporal prediction with good Pearson’s correlation coefficients of 0.6 and 0.7, respectively. We generated 10 years (2010–2019) of daily Cu concentrations over Europe, revealing spatial patterns aligned with urbanization and road networks, with peaks in cities and lower values in rural areas. Temporal trends reveal that Cu concentrations generally peak on weekdays and in winter. Despite a decline in PM across Europe over decades, Cu concentrations showed no decrease in many cities from 2010 to 2019. Cu levels are strongly correlated with population density with more than 12 million Europeans exposed to levels exceeding 40 ng/m³, equivalent to around 1 μg/m³ of total PM₁₀ from brake wear. Our findings highlight the need for expanded metal measurement for non-exhaust tracers for a better understanding of the health relevance of PM composition including Cu, and more effective regulations of non-exhaust PM emissions as included in EURO 7 vehicles.</div></div>","PeriodicalId":308,"journal":{"name":"Environment International","volume":"202 ","pages":"Article 109615"},"PeriodicalIF":10.3,"publicationDate":"2025-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144337909","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":"Spatially resolved analysis of speciated VOC emissions and their contributions to secondary pollutant formation: a comparative assessment of anthropogenic and biogenic sources in China","authors":"Yu Wang ,&nbsp;Haomiao Cheng ,&nbsp;Tianfang Kang ,&nbsp;Wei Wei ,&nbsp;Xiaoli Liu","doi":"10.1016/j.envint.2025.109627","DOIUrl":"10.1016/j.envint.2025.109627","url":null,"abstract":"<div><div>Volatile organic compounds (VOCs) significantly impact ozone (O₃) and particulate matter (PM_2.5) formation, requiring spatially resolved emission and reactivity assessments for air pollution control. Here, we developed a 27 km-grid speciated VOC emission inventory involving both anthropogenic and biogenic sources over mainland China in 2021, by combining the traditional emission factor method with refined spatial allocation method. Total VOC emissions reached 66.7 Tg, with biogenic sources contributing 65.0 % and anthropogenic sources 35.0 %, and their emission intensities varied from 0 to 684.9 t/km², peaking in South (24.7 t/km²) and East China (23.8 t/km²), while lowest in the Northwest (1.7 t/km²). Then, the speciated VOC emissions were further combined with their OH reaction rates and secondary organic aerosol (SOA) yield, to respectively achieve their OH reactivity (OHR_E) and SOA formation potential (SOAP_E). The national average OHR_E, calculated across all grid cells in China, for VOCs was 3028.9 s⁻¹, far exceeding the counterparts for inorganic components, while the national mean SOAP_E was 0.3 t/km², contributing 38.3 % to PM_2.5 emission. Both OHR_E and SOAP_E displayed significant spatial heterogeneity, with OHR_E decreasing from south to north, peaking in South China (11016.0 s⁻¹) and reaching its lowest in the Northwest (602.6 s⁻¹). In contrast, SOAP_E showed less regional variation but was highest in urban agglomerations, including the Pearl River Delta (1.6 t/km²), Yangtze River Delta (1.3 t/km²), and Beijing-Tianjin-Hebei (0.6 t/km²). This study is the first to quantify the spatial variability of OHR_E and SOAP_E using a gridded emission inventory, uncovering differences between anthropogenic and biogenic contributions and supporting targeted regional pollution control strategies.</div></div>","PeriodicalId":308,"journal":{"name":"Environment International","volume":"202 ","pages":"Article 109627"},"PeriodicalIF":10.3,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144337856","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":"Strong bioaccumulation of a wide variety of PFAS in a contaminated terrestrial and aquatic ecosystem","authors":"Ioanna S. Gkika ,&nbsp;J. Arie Vonk ,&nbsp;Thomas L. ter Laak ,&nbsp;Cornelis A.M. van Gestel ,&nbsp;Jildou Dijkstra ,&nbsp;Thimo Groffen ,&nbsp;Lieven Bervoets ,&nbsp;Michiel H.S. Kraak","doi":"10.1016/j.envint.2025.109629","DOIUrl":"10.1016/j.envint.2025.109629","url":null,"abstract":"<div><div>The widespread use of Per- and Poly Fluorinated Substances (PFAS) in a multitude of industrial and consumer applications, together with their persistence and mobility, has led to global contamination of the abiotic and biotic environment. Nevertheless, important knowledge gaps remain concerning PFAS occurrence and bioaccumulation, with studies tending to focus either on aquatic or on terrestrial ecosystems, with a bias towards the aquatic environment. The aim of the present study was therefore to investigate the distribution and bioaccumulation of various PFAS in a contaminated terrestrial and aquatic ecosystem. Subsequently, it was examined if the calculated bioaccumulation factors are related to PFAS molecular descriptors. Abiotic and biotic samples were collected from the aquatic and terrestrial compartments of a PFAS contaminated ecosystem and screened for 44 compounds. PFAS were present in all environmental compartments with varying profiles and concentrations. Generally, higher concentrations were found in aquatic than in terrestrial biota as well as in animals compared to plants. Biota-to-soil and biota-to-sediment accumulation factors (BSAFs) demonstrated a strong bioaccumulation of PFAS, reaching 96,708 kg sediment/kg biota. Similarly, a high bioconcentration potential from water was observed, with bioconcentration factors (BCFs) reaching 55,597 L water/kg biota. The membrane-water partition coefficient (K_mw) explained PFAS bioaccumulation to some extent, but the still limited understanding of factors driving PFAS bioaccumulation calls for further mechanistic research. Nonetheless, it is concluded that many of the 44 analyzed PFAS strongly bioaccumulate in terrestrial and aquatic primary producers and animals, making these compounds of great environmental concern for the coming decades.</div></div>","PeriodicalId":308,"journal":{"name":"Environment International","volume":"202 ","pages":"Article 109629"},"PeriodicalIF":10.3,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144337868","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":"The impact of particle size and volatile organics on the light absorption of wildfire-like brown carbon emissions from wood combustion","authors":"Constantinos Moularas ,&nbsp;Irini Tsiodra ,&nbsp;Nikolaos Mihalopoulos ,&nbsp;Philip Demokritou ,&nbsp;Georgios A. Kelesidis","doi":"10.1016/j.envint.2025.109626","DOIUrl":"10.1016/j.envint.2025.109626","url":null,"abstract":"<div><div>Here, the light absorption of brown carbon (BrC) emitted by wood combustion and denuded from volatile organic carbon (VOC) at 300 °C is elucidated using a recently developed thermal decomposition platform coupled with a suite of real-time aerosol instrumentation and time-integrated sampling systems. The BrC particle size distribution, morphology and optical properties are closely controlled by increasing the combusted wood mass from 50 to 600 mg to emulate those measured for “real world” wildfire particulate matter (PM) emissions. Size-fractionation of such wildfire-like BrC reveals that the PM_0.1–2.5 fraction contains high molecular weight, carcinogenic polycyclic aromatic hydrocarbons (PAHs) and absorbs up to five times more light compared to the PM_0.1 fraction. Thus, increasing the combusted wood mass from 50 to 600 mg increases the PM_0.1–2.5 concentration by a factor of about eight and enhances the overall BrC mass absorption cross-section, <em>MAC</em>, up to a factor of two at a wavelength of 405 nm. Condensation of VOC on BrC reduces its <em>MAC</em> up to 40 %. Still, the particle size seems to largely determine the BrC light absorption, as large VOC-rich particles absorb more light compared to small VOC-lean ones. The size-resolved BrC <em>MAC</em> measured here can be interfaced with climate models to estimate the climate impact of wildfire PM emissions.</div></div>","PeriodicalId":308,"journal":{"name":"Environment International","volume":"202 ","pages":"Article 109626"},"PeriodicalIF":10.3,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144334856","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":"Identification of VOC emission hotspots in industrial parks by high-spatiotemporal-resolution sensor networks","authors":"Xiaocan Bai ,&nbsp;Yuhan Huang ,&nbsp;Yanhui Wang ,&nbsp;Ziyi Wang ,&nbsp;Xue Li ,&nbsp;Ruixue Du ,&nbsp;Manyun Long ,&nbsp;Huawei Zhang ,&nbsp;Yan Tan ,&nbsp;Ting Liu ,&nbsp;Chun Chen ,&nbsp;Xianhui Fan ,&nbsp;Yanru Xu ,&nbsp;Jinping Cheng ,&nbsp;Shengao Jing ,&nbsp;Zizhen Ma ,&nbsp;Zehui Li ,&nbsp;Jingkun Jiang","doi":"10.1016/j.envint.2025.109628","DOIUrl":"10.1016/j.envint.2025.109628","url":null,"abstract":"<div><div>Industrial emissions are a significant contributor to volatile organic compound (VOC) pollution. However, timely and accurate tracking of high-emitting plants within industrial parks remains a challenge. Here, we deployed three high-density VOC sensor networks across a package printing industrial park (103 sites/km²), a fine chemical industrial park (8.57 sites/km²), and an urban area in central China. These networks enabled the identification of VOC pollution characteristics and sources in regions. The hourly average VOC concentrations in the package printing industrial park (320 ± 262 ppb) and the fine chemical industrial park (155 ± 62 ppb) were 1.62 to 2.75 times and 1.27 to 1.70 times higher compared to the urban area. Pollution levels in these two industrial parks were more severe than other reported industrial parks, primarily due to the higher VOC emission factors or higher VOC emission fluxes associated with these industries. Importantly, by integrating VOC concentration contour maps with meteorological data, major polluting plants in the package printing industrial park and the fine chemical industrial park were identified. These were further validated through downwind tracing of VOC species using gas chromatography-mass spectrometry. The results highlight that a VOC sensor network is an effective tool for real-time monitoring of VOC variations and the precise identification of high-pollution plants across various industrial parks, which can provide valuable insights for the refined control and management of VOC pollution emissions.</div></div>","PeriodicalId":308,"journal":{"name":"Environment International","volume":"202 ","pages":"Article 109628"},"PeriodicalIF":10.3,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144334855","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}