Environmental Pollution最新文献

{"title":"Phenol exposure, polygenic risk score, and dyslexia in Chinese children: Gene-environment interaction","authors":"Zhen Xiang ,&nbsp;Haoxue Wang ,&nbsp;Kaiheng Zhu ,&nbsp;Rundong Liu ,&nbsp;Shuai Zhao ,&nbsp;Hong Fan ,&nbsp;Qianhui Chen ,&nbsp;Bing Zhu ,&nbsp;Ranran Song","doi":"10.1016/j.envpol.2025.126536","DOIUrl":"10.1016/j.envpol.2025.126536","url":null,"abstract":"<div><div>Phenols, widespread environmental chemicals, may influence neurodevelopment, but their association with dyslexia remains poorly understood. This case-control study, part of the Tongji Reading Environment and Dyslexia Research Project, included 1062 children. We measured urinary levels of three bisphenols, three benzophenones, and two antimicrobials, and constructed a dyslexia-specific polygenic risk score (PRS) using genome-wide association study data. Conditional logistic regression assessed the relationship between phenol exposure and dyslexia risk. Participants were stratified into four groups based on median phenol exposure and PRS levels to examine the modifying role of genetic susceptibility. Phenol compounds were detected in most urine samples. Elevated urinary bisphenol A (BPA) levels were significantly associated with increased dyslexia risk (OR = 1.23, 95 % CI: 1.03–1.46), particularly in girls. Children with high PRS and high BPA exposure had a substantially higher dyslexia risk (OR = 1.70, 95 % CI: 1.05–2.76) compared to those with low PRS and low BPA exposure. However, no significant interaction was observed between PRS and BPA exposure. These findings emphasize the importance of reducing BPA exposure as a potential preventive measure and highlight the need for further research to elucidate causal pathways and mechanisms underlying these associations.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"379 ","pages":"Article 126536"},"PeriodicalIF":7.6,"publicationDate":"2025-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144133514","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":"TDCPP disrupts ALG-2/ALIX-mediated ESCRT-III recruitment: Implications for lysosomal membrane repair and neurotoxicity","authors":"Tingting Li ,&nbsp;Yue Zhang ,&nbsp;Xueman Ding ,&nbsp;Li Liu ,&nbsp;Runjiang Ma ,&nbsp;Wenqi Qin ,&nbsp;Chulin Yan ,&nbsp;Chun Wang ,&nbsp;Jingjing Zhang ,&nbsp;Mulatibieke Keerman ,&nbsp;Qiang Niu","doi":"10.1016/j.envpol.2025.126535","DOIUrl":"10.1016/j.envpol.2025.126535","url":null,"abstract":"<div><div>Tris (1,3-dichloro-2-propyl) phosphate (TDCPP), a prevalent flame retardant, is associated with neurotoxicity linked to lysosomal damage. Timely repair of damaged lysosomal membranes is crucial for cell survival. This study aimed to elucidate the role of endosomal sorting complex required for transport (ESCRT)-dependent lysosomal membrane repair mechanisms in TDCPP-induced neurotoxicity, focusing on the regulatory roles of apoptosis-linked gene 2 (ALG-2) and ALG-2 interacting protein-X (ALIX) in recruiting ESCRT-III complexes. Using <em>in vitro</em> models of TDCPP exposure in the human neuroblastoma cell line SH-SY5Y and murine astrocyte cell line C8-D1A, we found that TDCPP exposure led to impaired lysosomal membrane repair via ESCRT-dependent mechanisms, disrupted lysosomal membrane integrity, and induced apoptosis. This impairment was characterized by: decreased expression of ALG-2, ALIX, and the ESCRT-III subunit — charged multivesicular body protein 4B (CHMP4B); reduced recruitment of CHMP4B mediated by ALG-2/ALIX; increased levels of galectin-3 and cleaved poly (ADP-ribose) polymerase (Cleaved-PARP); and an elevated apoptosis rate. Notably, ALG-2 and ALIX overexpression reinstated CHMP4B accumulation at injury sites, facilitated lysosomal recovery, and mitigated TDCPP-induced lysosomal membrane damage and apoptosis. These findings indicate that TDCPP interferes with ALG-2/ALIX-mediated ESCRT-III recruitment, leading to defective lysosomal membrane repair. Moreover, ALG-2 and ALIX overexpression attenuated TDCPP-induced lysosomal injury, enhancing cell survival. Our findings reveal a novel mechanism by which TDCPP disrupts lysosomal membrane repair through interference with ALG-2/ALIX-mediated ESCRT-III recruitment, providing the molecular mechanisms of TDCPP-induced neurotoxicity and highlighting potential therapeutic strategies for combating TDCPP toxicity.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"379 ","pages":"Article 126535"},"PeriodicalIF":7.6,"publicationDate":"2025-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144133522","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":"Photoaged polystyrene nanoplastics induce perturbation of glucose metabolism in HepG2 cells via oxidative stress","authors":"Ning Wang ,&nbsp;Xin Zhu ,&nbsp;Zhiqiang Xu ,&nbsp;Xia Ning ,&nbsp;Lin Guo ,&nbsp;Dong Liang ,&nbsp;Guangke Li ,&nbsp;Na Zhu","doi":"10.1016/j.envpol.2025.126534","DOIUrl":"10.1016/j.envpol.2025.126534","url":null,"abstract":"<div><div>Micro- &amp; nano-plastics (MNPs) have been considered an emerging persistent pollutant in the environment. Most of the works focus on the potential toxicity of pristine, rather than photoaged, MNPs, let alone the underlying mechanisms of toxicity. To address this gap, we exposed human liver cancer cells (HepG2) to polystyrene nanoplastics (PS-NPs) with varying degrees of photodegradation, including pristine PS-NPs and photoaged PS-NPs irradiated with UV for 8 days (short-term) and 32 days (long-term).The surface characteristics of PS-NPs exhibited a significant alteration as characterized by SEM, FTIR, XPS, and Zetasizer. Exposure to PS-NPs affected cell viability, ion transport capacity and glucose metabolism, and also induced oxidative stress. Photoaged PS-NPs posed relatively higher impacts than pristine ones on HepG2 cells. Long-term photoaged PS-NPs induced the glucose metabolic disorders in a dose-dependent manner, while pristine and short-term photoaged PS-NPs induced the metabolic disorders only at high concentrations. The severe cellular metabolic toxicity of PS-NPs was attributed to the changes in physicochemical properties induced by UV irradiation, such as the production of oxygen-containing functional groups (hydroxyl, carboxyl, and carbonyl groups). Taken together, the long-term photoaged PS-NPs suppressed more than 10 % of cell vitality compared to the pristine ones, and disrupted the glucose metabolism in HepG2 cells, particularly gene expression associated with glucose homeostasis.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"379 ","pages":"Article 126534"},"PeriodicalIF":7.6,"publicationDate":"2025-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144133656","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":"Quantitative assessment of microplastics in fish from the Gulf of Guinea, Ghana, using LDIR spectroscopy: Implications for marine food safety and health risk evaluation","authors":"Pennante Bruce-Vanderpuije ,&nbsp;Ruby Asmah ,&nbsp;Miriam Ameworwor ,&nbsp;Divine Worlanyo Hotor ,&nbsp;Lars Hildebrandt ,&nbsp;Daniel Pröfrock ,&nbsp;Ralf Ebinghaus ,&nbsp;Haruna Zaid ,&nbsp;Ishmael Cudjoe Norvimagbe ,&nbsp;Kwadwo Ansong Asante ,&nbsp;Abigail Akuetteh Nunoo ,&nbsp;Mike Yaw Osei-Atweneboana","doi":"10.1016/j.envpol.2025.126518","DOIUrl":"10.1016/j.envpol.2025.126518","url":null,"abstract":"<div><div>In this study, microplastic (MP) contamination was investigated in 24 marine fish species from 3 environmental hotspots- Labadi, Teshie, and Jamestown, along Ghana’s Gulf of Guinea coastline. Specific fish species studied included <em>Pseudotolithus senegalensis, Sphyraena guachancho, Brachydeuterus auratus, Chloroscombrus chrysurus, and Ethmalosa frimbriata</em>. Fifty-eight percent of the total MPs were detected in the gastrointestinal tracts, and 42% detected in gills of 177 individual fish tested in this study. Labadi showed the highest contamination levels [mean MP concentration: 22 ± 19 (items fish)-1]. Omnivorous fish species had the highest mean ingestion rate of MPs (19.4), surpassing both carnivorous (17.7) and herbivorous species (13.5), and indicating dietary habits as a significant factor in MP bioaccumulation. White-coloured MP films (60%) of sizes: 100-1000 µm were the dominant ingested shape. Other MP shapes included fragments (26.3%), fibres (10.5%), beads (1.05%), and foam (0.61%). Using advanced spectroscopic technique such as Laser Direct Infrared (LDIR) Imaging, 16 MP polymers were characterized with polyvinyl chloride (PVC) being the prevalent MP polymer type (80%). The study observed a strong positive correlation between carnivorous demersal and omnivorous pelagic-neritic fish for specific MP polymers, suggesting that factors other than polymer density influence MP consumption patterns for fish habitats within the water column. The annual MP exposure to Ghanaian adults via fish consumption [(194-29,239 MP items (person year)-1] significantly exceeded the European Safety guidelines [518-3078 (items year)-1], emphasizing dietary habits and environmental pollution as key factors. This study provides a critical baseline on MP pollution in Ghanaian marine ecosystems, highlighting the urgent need for interventions to mitigate plastic pollution, protect marine biodiversity, safeguard marine food, and public health in West Africa.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"379 ","pages":"Article 126518"},"PeriodicalIF":7.6,"publicationDate":"2025-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144133655","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":"Anaerobic biotransformation of carbamazepine during graphene oxide biological reduction","authors":"Oriol Casabella-Font ,&nbsp;Elisabeth Cuervo-Lumbaque ,&nbsp;Maite Pijuan ,&nbsp;Jelena Radjenovic","doi":"10.1016/j.envpol.2025.126538","DOIUrl":"10.1016/j.envpol.2025.126538","url":null,"abstract":"<div><div>Carbamazepine (CBZ) is well-known for its resistance to biological wastewater treatment. In the present study, the biological reduction of graphene oxide (GO) is investigated as the inducer of the co-metabolic biodegradation of CBZ under anaerobic conditions. The addition of 0.05 and 0.1 g GO g ⁻¹ VS resulted in a CBZ removal &gt;75 % and &gt;90 % within 48 h, respectively. Moreover, the sequential GO dosing strategy greatly enhanced the anaerobic biotransformation of carbamazepine, achieving &gt;95 % removal. Structural elucidation of the major transformation products of carbamazepine revealed the epoxidation of the azepine ring after each dosage of GO, forming 10,11-epoxycarbamazepine, confirming biotransformation as a removal mechanism. In contrast, the formation of the biologically reduced GO (bio-rGO) negatively affected methane production, reducing the specific methane production and prolonging the lag phase. The present study demonstrates that, despite its persistence to biological degradation, carbamazepine can be effectively co-metabolically transformed under anaerobic conditions. This study demonstrates that exposure of the anaerobic community to oxidative stress may result in novel wastewater treatment strategies to remove persistent organic contaminants.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"379 ","pages":"Article 126538"},"PeriodicalIF":7.6,"publicationDate":"2025-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144133654","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":"Toxic effects of polystyrene microplastics on atrazine in zebrafish: Exogenous toxicity and endogenous mechanism","authors":"Zihang Zeng ,&nbsp;Lixiang Chen ,&nbsp;Ruixiang Li ,&nbsp;Yingjie Tan ,&nbsp;Xiaofeng Liu ,&nbsp;Caicheng Long ,&nbsp;Peng Zhang ,&nbsp;Taiping Qing ,&nbsp;Bo Feng","doi":"10.1016/j.envpol.2025.126519","DOIUrl":"10.1016/j.envpol.2025.126519","url":null,"abstract":"<div><div>The ubiquitous presence of microplastics and other contaminants in the environment poses a potential threat to organisms, yet the mode of action and mechanisms of toxicity when they are co-exposed remain underexplored. In this work, we investigated the combined effects of environmental concentrations of polystyrene (PS) and dry heat-UV-bioaged polystyrene microplastics (CPS) with the triazine herbicide atrazine on zebrafish. Acute toxicity experiments demonstrated that combined exposure of PS/CPS and atrazine enhanced the 96-h LC₅₀ of atrazine. Long-term exposure experiments showed that combined exposures were more likely to result in tissue damage and oxidative stress disorders in the zebrafish gut and liver. Interestingly, our experiments show that co-exposure also affects exogenous water quality by decreasing dissolved oxygen and increasing NH₃⁺-N, NO₃⁻ and NO₂⁻ in the water column, and that NO₂⁻ and NH₃⁺-N can cause damage to zebrafish. Moreover, the combined exposure was more likely to cause changes in gut flora at the level of phylum. In terms of hepatic gene transcription, combined exposure not only led to a significant enrichment of pathways for amino acid metabolism, fat digestion and absorption, and fatty acid degradation, but also affected several disease-associated signaling pathways. These findings provide novel perspectives and evidence on the mechanisms of toxicity induced by combined exposure to new contaminants and provide guidance for ecological risk assessment.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"379 ","pages":"Article 126519"},"PeriodicalIF":7.6,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144130368","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":"What can grasshoppers reveal about metal pollution? A study of nickel smelter in Slovakia","authors":"Jozef Kováčik ,&nbsp;Lenka Husáková ,&nbsp;Martina Piroutková ,&nbsp;Jan Patočka","doi":"10.1016/j.envpol.2025.126516","DOIUrl":"10.1016/j.envpol.2025.126516","url":null,"abstract":"<div><div>Three-year biomonitoring compared the accumulation of 51 elements in grasshoppers (<em>Euchorthippus declivus</em>) from the vicinity of a former nickel smelter dump and two control sites. It was a positive finding that some major elements in the dump (Ni, Cr and Co, max. content 4.4, 9.4 and 0.24 μg/g dry body weight, respectively) decreased by 50–80 % in grasshoppers between 2021 and 2023. The concentrations of PM 10 and PM 2.5 also declined over time, potentially reflecting a reduction in the abovementioned elements. Although some minor elements (Pb, Sn, Cd, As, U, Th, and rare earth elements) did not exhibit a time-dependent decline, their concentrations remained significantly lower compared to other industrially impacted regions worldwide. Among herbs, the highest accumulation of elements was typically found in <em>Convolvulus arvensis</em> (Ni, Cr, Se, U, Th, Re) and/or in <em>Setaria viridis</em> (Cd, W, Sn, As). Correlation analyses revealed a positive relationship between elemental concentrations in herbs and grasshopper bodies, particularly in <em>C. arvensis</em>, suggesting its potential as an effective bioindicator of elemental pollution. The bioaccumulation factor (BAF, ratio of elemental content in grasshoppers to that in herbs) varied depending on plant species and locality: grasshoppers revealed indication (BAF ∼ 1, Fe, Ni, Co, and Mo), accumulation (BAF &gt;1, Cu, Cd, Dy, U, Er, Yb) and exclusion (BAF &lt;1, Cr, Mg, Rb, Sn, Re) values. Hierarchical cluster (HCA) and principal component analyses (PCA) confirmed a clear separation of the dump from the control sites based on the specific profile of the elements.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"379 ","pages":"Article 126516"},"PeriodicalIF":7.6,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144130371","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":"Earthworm survival adaptations to arsenate exposure: Links between behavioral inhibition, mitochondrial dysfunction, and oxidative stress responses","authors":"Yunxiang Xu ,&nbsp;Songge Deng ,&nbsp;Yanjun Shen ,&nbsp;Muyuan Wang ,&nbsp;Yifan Zhang ,&nbsp;Yizhao Wu ,&nbsp;Qi Zhao ,&nbsp;Jibao Jiang ,&nbsp;Xianqing Zheng ,&nbsp;Weiguang Lv ,&nbsp;Yinsheng Li","doi":"10.1016/j.envpol.2025.126514","DOIUrl":"10.1016/j.envpol.2025.126514","url":null,"abstract":"<div><div>The threshold for arsenic (As) in agricultural soils is increasing, posing a significant risk to human health through the food chain. The efficacy of vermiremediation to remove As has been constrained by the limited understanding of earthworms' survival adaptions. Hence, the present study aimed to investigate the responses and underlying potential mechanisms of <em>Eisenia fetida</em> to arsenate (As-V). The RT-PCR and enzyme analysis results showed that the antioxidant system regulated their expressions, thus maintaining the balance of generating and eliminating reactive oxygen species (ROS). Accumulated ROS attacked the mitochondrial respiratory chain, and upregulated complex gene expressions to mitigate the decreases in respiratory intensity and ATP levels. Subsequently, the inhibitory effects on feeding, digestion, and reproduction behavior were observed. These findings elucidated the dose-dependent effects of As-V on earthworm biomass loss and mortality, which exhibited 34.4 % and 33.3 % increments, respectively, at As exposure of 200 mg/kg after 28 days. Furthermore, “U-shaped” curves indicated that earthworms had a potential As tolerance threshold of 100 mg/kg. A stress response index (SRI) showed that As-V had a dose-dependent effect on earthworm integrative stress, with an observed potential adaptive inflection point after prolonged exposure time. Partial least squares path modelling (PLS-PM) confirmed that oxidative stress predominantly influenced earthworm survival, with a path coefficient of 0.52. Oxidative stress had a positive regulatory effect by influencing mitochondrial function and inhibiting behavioral activity. These findings provide insights for comprehensive understanding of earthworm survival adaptation to As-V, and help to diagnose, assess and remediate soil As contamination.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"378 ","pages":"Article 126514"},"PeriodicalIF":7.6,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144130370","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":"Gestational exposure to micro- and nanoplastics leads to poor pregnancy outcomes by impairing placental trophoblast syncytialization","authors":"Yanmin Cheng ,&nbsp;Yue Li ,&nbsp;Yulu Zhang ,&nbsp;Hui Liu ,&nbsp;Bei Yang ,&nbsp;Jun Zhu ,&nbsp;Haibin Kuang","doi":"10.1016/j.envpol.2025.126520","DOIUrl":"10.1016/j.envpol.2025.126520","url":null,"abstract":"<div><div>The omnipresent micro- and nanoplastics (MNPs), emerging environmental contaminants, have caused a widespread concern because of their potential threats to public health. Increasing evidence has indicated that MNPs were deeply involved in poor pregnancy outcomes, but the detailed mechanism remains obscure. In this research, we firstly identified that maternal exposure to MNPs during gestation increased both the number and rate of embryo resorption, while reducing embryonic weight, placental diameter and placental weight. This was accompanied by disrupted progesterone and estradiol synthesis in MNPs-treated mouse placentas. In addition, our data suggested that MNPs exposure disturbed placental development, as evidenced by the reduction of the total area of placenta, area of spongiotrophoblast layer and area of labyrinth layer. Subsequently, <em>in vivo</em> and <em>in vitro</em> experiments further indicated that MNPs compromised syncytialization process and decreased the expression of syncytialization markers in mouse placentas and human placental trophoblasts. Further investigation indicated that PERK/eIF2α/ATF4 signaling was activated in MNPs-treated mouse placentas and human placental trophoblasts. More importantly, inhibition of PERK partially restored syncytialization insufficiency caused by MNPs administration. On the whole, our results suggested that gestational exposure to MNPs disturbed placental trophoblasts syncytialization possibly through activating PERK/eIF2α/ATF4 pathway, resulting in aberrant placentation and poor pregnancy outcomes.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"381 ","pages":"Article 126520"},"PeriodicalIF":7.6,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144130369","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":"Does air pollution still impact epiphytic bryophytes in the post acidic rain era? Insights from spatial variation of community composition in southern Belgium","authors":"Lea Mouton ,&nbsp;Virginie Hutsemekers ,&nbsp;Flavien Collart ,&nbsp;Alain Vanderpoorten","doi":"10.1016/j.envpol.2025.126495","DOIUrl":"10.1016/j.envpol.2025.126495","url":null,"abstract":"<div><div>Since the dramatic air pollution peaks that prevailed in the course of the 20th century in Europe, effective environmental policies, along with major shifts in fuel usage, resulted in the substantial decrease of SO_x and NO_x pollution. At the interface between atmosphere and vegetation, epiphytic bryophyte floras responded by massive back-colonisation of formerly polluted areas. Whether extant concentrations of these pollutants are indeed too low to impact species distributions, and whether other pollutants today play a more important role remains, however, an open question. Taking advantage of an air quality monitoring network for a wide range of pollutants in southern Belgium, we implement here variation partitioning and embedded covariate selection to assess the contribution of current air pollutant loads to variations in epiphytic community composition relative to that of background environmental factors. Factors accounting for variation in species composition included, by decreasing order of importance, background environmental factors, major air pollutants (SO_x, NO_x, O₃, fine particle matter), pollutants of agricultural origin (NH₃, pesticides), and heavy metals. The substantially larger role played by background environmental factors over air pollution points to the efficiency of air pollution reduction policies, even for such sensitive organisms as epiphytic bryophytes. Ozone was the most important pollutant. Its ecophysiological impact on cryptogamic epiphytes remains poorly known, and the difference of its concentrations between urban and rural areas suggests that it may actually be interpreted as a land-use marker. Pesticides, whose impact on epiphyte floras was not previously assessed, marginally contributed to community composition and species distributions.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"379 ","pages":"Article 126495"},"PeriodicalIF":7.6,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144122561","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}