Environmental Pollution最新文献

{"title":"Catalytic generation of adsorbed atomic H for degradation of 2,2',4,4'-tetrabromodiphenyl ether by mechanochemically prepared Ni-doped oxalated zero-valent iron","authors":"Kuang Wang, Zhanqiang Fang","doi":"10.1016/j.envpol.2024.125334","DOIUrl":"https://doi.org/10.1016/j.envpol.2024.125334","url":null,"abstract":"In the homologous series of polybrominated diphenyl ethers (PBDEs), the debromination of low-brominated diphenyl ethers with higher toxicity remains a challenge. Nano zero-valent iron (nZVI) has been extensively studied for the debromination of PBDEs, but its inherent direct electron transfer mechanism is less efficient for low-brominated diphenyl ethers, and there are issues with high preparation costs. In this work, we synthesize Ni-doped oxalated submicron ZVI (Fe_OX^bm/Ni) using a low-cost ball-milling method. Fe_OX^bm/Ni exhibits a debromination rate constant of 0.48 day^-1 for 2,2’,4,4’-tetrabromodiphenyl ether (BDE-47) in tetrahydrofuran (THF)/water. The debromination rate of Fe_OX^bm/Ni for BDE-47 in water is even faster (0.98 day^-1), with the yield of the complete debromination product, diphenyl ether, reaching 76.71%. In real groundwater, Fe_OX^bm/Ni also shows high reactivity toward BDE-47, with a rate constant of 0.33 day^-1. Kinetic experiments, quenching experiments, and degradation pathway indicate that the attack of atomic hydrogen on C-Br bonds is the primary degradation mechanism. Electrochemical analysis further show that Ni⁰ sites could cleave hydrogen into absorbed atomic hydrogen (H*_ABS) and adsorbed atomic hydrogen (H*_ADS), with H*_ADS playing the main role. These findings contribute valuable insights into advancing the large-scale application of ZVI and offer promising strategies for thorough remediation of PBDEs pollution.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"35 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142670714","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":"Leaf ecological traits (morphology and gas exchange) and polycyclic aromatic hydrocarbons concentrations in shrubs and trees: a meta-analysis approach","authors":"Pablo Giráldez, Antón Vázquez-Arias, Flavia De Nicola, J. Ángel Fernández, Jesús R. Aboal","doi":"10.1016/j.envpol.2024.125337","DOIUrl":"https://doi.org/10.1016/j.envpol.2024.125337","url":null,"abstract":"The leaves of trees and shrubs can capture atmospheric pollutants such as polycyclic aromatic hydrocarbons (PAHs), and the capacity of uptake depends on the leaf traits. Although numerous studies have measured PAH concentrations in leaves of woody plants and the variability in leaf traits, few have investigated the relationship between these factors. We conducted a literature review to summarize the available information on this topic and found that five types of leaf traits have been studied, with those associated with leaf morphology and gas exchange being the most common. However, the results of the studies are often contradictory. To address these discrepancies, we conducted a meta-analysis to examine how PAH uptake by woody species is affected by leaf ecological traits associated with morphology (leaf area, specific leaf area [SLA], leaf thickness and leaf width/length ratio [W/L]) and with gas exchange (stomatal conductance, leaf carbon isotopic signature [δ¹³C] and stomatal density). The meta-analysis included studies involving at least two different species with comparable PAH concentrations. Many of the studies did not examine the relationship between ecological traits and PAH concentration, and those that did often involve different traits. We therefore used the TRY Plant Trait Database data as the standard source of trait data. Relationships were analyzed by determining differences regarding PAHs and traits and calculating Spearman correlations and their significance. The leaf morphology traits were more closely correlated with PAH concentrations than the gas exchange traits. Thus, morphological traits such as SLA and leaf area can be considered significant predictors of PAH uptake, especially for particulate-associated PAHs. Gas exchange traits showed less consistent correlations, indicating the complexity of factors influencing PAH uptake in leaves. This study highlights the importance of considering multiple leaf traits in order to better understand and predict PAH uptake in woody plants.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"39 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142670715","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":"Impacts of mining on the diversity of benthic macroinvertebrates - A case study of molybdenum mining area in Luanchuan county","authors":"Na Zhao, Chenxi Sang, Ruixue Cao, Zhijun Yao, Feilong Gao, Shimin Tian, Yiming Hou","doi":"10.1016/j.envpol.2024.125335","DOIUrl":"https://doi.org/10.1016/j.envpol.2024.125335","url":null,"abstract":"Mineral exploitation is one of the human activities that seriously affect freshwater ecosystems. It is of great significance to study the impact of mining on the α and β diversity of macroinvertebrates. This study reveals the response of taxonomic and functional α and β diversity of macroinvertebrates to mining activities in the Luanchuan molybdenum mining area. A total of 40 sets of macroinvertebrates, sediment and water samples in the Taowan North River (TR), Yu River (UR) and Hongluo River (HR) in the molybdenum mining area were collected. The results show that: 1) the mining activities led to obvious differences in the environmental factors of the three rivers. The heavy metals in the sediments and water bodies of TR and UR showed different degrees of exceedance, while there was no exceedance of heavy metals in HR; 2) The taxonomic and functional α diversity was much lower in the TR and the UR than in the HR. The concentrations of heavy metals in sediments and water bodies were significantly negatively correlated with the taxonomic and functional α diversity; 3) Mineral extraction resulted in significant differences in macroinvertebrate β diversity among the three rivers. The taxonomic and functional β diversity of the macroinvertebrate communities in TR and UR was much higher than that in HR. The turnover and nestedness of functional β diversity showed significant differences. Functional β diversity was more obviously affected by heavy metal exceedance than taxonomic β diversity. Nestedness were more sensitive to exceedance of heavy metals than turnover. The results of this study can provide a theoretical basis for ecological restoration and protection of rivers in mining areas.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"55 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142670771","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":"Key factors affecting groundwater nitrate levels in the Yinchuan Region, Northwest China: research using the eXtreme Gradient Boosting (XGBoost) model with the SHapley Additive exPlanations (SHAP) method","authors":"S.M.Khorshed Alam, Peiyue Li, Mahbubur Rahman, Misbah Fida, Vetrimurugan Elumalai","doi":"10.1016/j.envpol.2024.125336","DOIUrl":"https://doi.org/10.1016/j.envpol.2024.125336","url":null,"abstract":"Groundwater is a vital natural resource that has been extensively used but, unfortunately, polluted by human activities, posing a potential threat to human health. Groundwater in the Yinchuan Region is contaminated with NO₃^-, which is harmful to the local population. This study utilized the eXtreme Gradient Boosting (XGBoost) model with the SHapley Additive exPlanations (SHAP) method to identify the key factors influencing groundwater nitrate pollution in the Yinchuan Region. The SHAP feature dependence plots revealed the intricate relationship between NO₃^- levels and TDS, Mn²⁺, TFe, and pH in complex groundwater systems. The results indicate that the high levels of groundwater NO₃^- are primarily caused by the combined effect of irrigation water from the Yellow River, shallow groundwater depth, unfavorable drainage, water recharge, overuse of fertilizers, and geological factors such as weathering nitrogen-bearing rocks. Hydrochemical parameters such as Mn²⁺, Fe²⁺, and pH create a strong reducing groundwater environment, resulting in lower NO₃^- concentrations in this region. Well depth and soil organic carbon at a depth of 80-100 cm have a negative impact on NO₃^- concentrations; conversely, sand in soil depths 0-20 cm and 100-150 cm and climatic factors such as precipitation have a weak but positive effect on the level of NO₃^- in groundwater in the region. The recommendation is to quickly and extensively implement a farming water-conservancy transformation project, reducing water-intensive crops, promoting groundwater use for irrigation in areas where soil salinization is a concern are proposed. This research could provide local agencies with a scientific foundation for sustainable management of farming and groundwater in the Yinchuan Region, ultimately benefiting the entire Yinchuan Plain.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"7 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142670709","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":"Influence of environmental and biological factors on mercury accumulation in fish from the Atrato River basin, Colombia","authors":"Jorge Bernal-Alviz, Leonomir Córdoba-Tovar, Dianis Pastrana-Durango, Carlos Molina-Polo, Jorge Buelvas-Soto, Ángel Cruz-Esquivel, José Marrugo-Negrete, Sergi Díez","doi":"10.1016/j.envpol.2024.125345","DOIUrl":"https://doi.org/10.1016/j.envpol.2024.125345","url":null,"abstract":"Understanding variations in total mercury (T-Hg) levels in fish is crucial for protecting aquatic biota and human health. This article evaluates the influence of environmental factors (temperature, pH) and biological variables (feeding habits, trophic level, total length, total weight), on T-Hg concentrations in fish from the Atrato River basin, Colombia. Utilizing a robust secondary data set of 842 fish samples from 16 species collected in 2019, we conducted a comprehensive analysis of these influences. We examined differences in T-Hg accumulation rates by habitat type (pelagic, benthopelagic and demersal) and probabilistically classified species based on their feeding habits and trophic levels. Our analysis identified a hierarchy of variables influencing T-Hg levels: feeding habits > total length > estimated total weight > trophic level > water temperature > pH, with temperature being the only predictor exerting a negative influence. Together, these variables accounted for over 60% of the variability in T-Hg accumulation in fish muscle tissue. Furthermore, fish in the Atrato River exhibited differential T-Hg based on habitat type, grouping into three distinct subpopulations stratified by feeding habits and trophic levels. These findings suggest that observed T-Hg accumulation patterns are driven by the functional ecology of the organisms, phenological characteristics, metabolism, contamination patterns, biogeography, land use, and the spatial and chemical configuration of the environmental matrices of the basin. Our results emphasize the importance of understand how biological and environmental factors influence T-Hg concentrations in fish, as these factors vary across aquatic systems. This knowledge is crucial for developing effective biodiversity management strategies. While we used a machine learning approach to identify key predictors of T-Hg accumulation, we also caution against potential biases in modeling T-Hg concentrations for aquatic biota management.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"65 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142670713","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":"Gut microbiota combined with metabolome dissects Fluorene-9-bisphenol exposure-induced male reproductive toxicity","authors":"Danni Jiang, Yang Yang, Xiaojuan Han, Qianni Li, Jun Jiao, Yingxiu Ma, Lan Chao","doi":"10.1016/j.envpol.2024.125339","DOIUrl":"https://doi.org/10.1016/j.envpol.2024.125339","url":null,"abstract":"A major alternative to bisphenol A (BPA), fluorene-9-bisphenol (BHPF) has been shown to cause multiorgan toxicity. However, its reproductive toxicity and the underlying biological mechanism remain largely unknown. Recently, changes in the gut microbiota and metablome caused by environmental contaminant exposure and their potential impact on male reproductive health have been of great concern. Therefore, we aimed to elucidate the underlying mechanism of BHPF-related fertility impairment by integrating metabolome and microbiome analysis. In the present study, we showed that BHPF exposure caused testicular dysfunction with impaired spermatogenesis and disrupted steroid hormone synthesis. Mechanistically, altered gut microbiota and metabolites were revealed by 16S rDNA sequencing and untargeted metabolomics analysis. Subsequent multi-omics combination analysis revealed a strong correlation between altered microbiota and lipid metabolites. We also found a strong relationship between lipid metabolites and sperm parameters such as sperm concentration, sperm motility, etc. Most importantly, these findings provide new insights into the mechanistic scenario underlying BHPF-induced fertility toxicity, that disrupted lipid metabolism caused by gut microbiota dysbiosis may be a reason for reproductive impairment caused by BHPF exposure.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"99 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142665225","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 Spatiotemporal Prediction of PM2.5 Concentration based on Mobile Monitoring and Deep Learning","authors":"Yi-Zhou Wang, Hong-Di He, Hai-Chao Huang, Jin-Ming Yang, Zhong-Ren Peng","doi":"10.1016/j.envpol.2024.125342","DOIUrl":"https://doi.org/10.1016/j.envpol.2024.125342","url":null,"abstract":"Obtaining the high-resolution distribution characteristics of urban air pollutants is crucial for effective pollution control and public health. In order to fulfill it, mobile monitoring offers a novel and practical approach compared to traditional fixed monitoring methods. However, the sparsity of mobile monitoring data still makes it a challenge to recover the high-resolution pollutant concentration across an entire area. To tackle the sparsity issue and fulfill a prediction of the spatiotemporal distribution of PM_2.5, a high-resolution urban PM_2.5 prediction method was proposed based on mobile monitoring data in this study. This method enables prediction with a spatial resolution of 500m × 500m and a temporal resolution of 1 hour. First, a Light Gradient Boosting Machine (LightGBM) was trained using mobile monitoring of PM_2.5 concentration and exogenous features to obtain complete spatiotemporal PM_2.5 concentration. Second, a model consisting of Convolutional Neural Network and Transformer (CNN-Transformer) with a customised loss function was established to predict high-resolution PM_2.5 concentration based on complete spatiotemporal data. The method was validated using real-world data collected from Cangzhou, China. The numerical results from cross-validation showed an R² of 0.925 for imputation and 0.887 for prediction, demonstrating this method is suitable for high-resolution spatiotemporal prediction of PM_2.5 concentration based on mobile monitoring data.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"6 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142665226","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":"Bacteriological safety and quality of composted products from animal, urban or sewage sludge wastes","authors":"Ivone Vaz-Moreira, Angelo D’Arnese, Maurice Knoll, A. Margarida Teixeira, Joana Bastos Barbosa, Paula Teixeira, Célia M. Manaia","doi":"10.1016/j.envpol.2024.125329","DOIUrl":"https://doi.org/10.1016/j.envpol.2024.125329","url":null,"abstract":"This study investigated the presence of culturable bacterial pathogens, and antibiotic resistance and associated genes (quantitative PCR) in commercially available composted products from animal excrements or manure (n=7), urban wastes (n=1) or (sewage sludge) (n=1). Metals quantification and 16S rRNA-based bacterial community composition analyses supported the results to infer potential risks to downstream environments (e.g., soils). <em>Bacilli</em> and <em>Actinomycetes</em> were the dominant bacterial classes in seven composts, while two were dominated by different classes of <em>Pseudomonadota</em> or the class <em>Bacteroidia</em>. <em>Salmonella</em> spp. was not detected in all composts, meeting recommended quality criteria, while <em>Escherichia coli</em> and <em>Listeria monocytogenes</em> were only detected in the sewage sludge compost. The antibiotic resistance genes <em>ermB</em> and <em>ermF</em> were detected in most of the composts, and the antibiotic resistance gene <em>sul1</em> and the <em>intI1</em> gene (proxy for antibiotic resistance recombination) in all composts in the range of 6-9 log gene copy number/g dry weight. <em>Listeria</em> spp. and the gene <em>bla</em>_{<em>CTX</em>-M} were detected only in chicken/poultry composts suggesting increased risk. All composts, except the urban waste compost, presented at least one metal (zinc, copper, and/or cadmium) above the recommended value. The genes <em>uidA</em>, <em>crAssphage</em>, <em>ermB</em> and <em>bla</em>_{<em>CTX</em>-M} were negatively correlated with the abundance of total heterotrophs and moisture content, and the genes <em>intI1</em> and <em>sul1</em> were negatively correlated with the concentration of the metals Cr, Ni and Pb. Overall, the urban waste compost presented the best quality, exhibiting the lowest antibiotic resistance load. These findings alert for the fact that composts may contribute to the dissemination of antibiotic resistance, highlighting the need of regular assessment. It is suggested that multiple factors, including the raw materials, may influence the safety of the final compost, and the knowledge of the variables affecting compost safety need to be thoroughly investigated and understood.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"43 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142642621","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":"Analysis of Microplastic Contamination and Associated Human Health Risks in Clarias gariepinus and Oreochromis niloticus from Kubanni Reservoir, Zaria Nigeria","authors":"Maria Onma Onaji, David S. Abolude, Shuaibu Akpai Abdullahi, Lucas Del Bianco Faria, Mathias Ahii Chia","doi":"10.1016/j.envpol.2024.125328","DOIUrl":"https://doi.org/10.1016/j.envpol.2024.125328","url":null,"abstract":"Environmental safety has become a major concern in recent years due to the global increase in microplastic pollution. These ubiquitous, tiny, and potentially toxic plastic particles enter aquatic environments through weathering of larger plastics and the release of microbeads. Although numerous studies have focused on microplastic pollution in developed regions, information from developing countries remains limited. This study assessed the presence of MPs and associated oxidative stress responses in two commercial fish species, <em>Clarias gariepinus</em> (Catfish) and <em>Oreochromis niloticus</em> (Nile Tilapia), from Kubanni reservoir, Zaria, Nigeria, over six months spanning both the dry and rainy seasons. Fibers were identified as the most abundant MP particles, followed by fragments, films, and beads, in the order of fibers &gt; fragments &gt; films &gt; beads. The highest fiber concentrations were recorded in the gills, with <em>Clarias garipinus</em> showing 11.5 MP items/individual and <em>Oreochromis niloticus</em> showing 22.5 MP items/individual. Black microplastics were predominant, and the most common ingested MP ranged from 1.0 to 2.0 mm. The primary polymers identified were polypropylene and polyethylene terephthalate. Evidence of oxidative stress and cellular damage was observed in the gills, liver, and dorsal muscles of both fish species, which correlated with MPs ingestion. According to recommendations from the European Food Safety Authority regarding fish consumption by children and adults, individuals consuming <em>Clarias gariepinus</em> and <em>Oreochromis niloticus</em> from the Kubanni reservoir may be exposed to between 70 and 700 MP items/organ. The risk associated with consuming MPs found in fish gills and guts was notably higher, posing significant concerns for human health. This study provides insights into microplastic contamination in commercially important fish from the Kubanni Reservoir and highlights the environmental and public health risks associated with consuming contaminated fish from this ecosystem.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"38 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142642619","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":"Potential Source Contribution Function Coupled with Mass Spectrometry Detection to Identify Source of Atmospheric Polyethylene Terephthalate","authors":"Hanling Yang, Junjie Zhang, Zhiwanxin Li, Jian Pu, Chu Peng, Chunguang Liu, Lei Wang","doi":"10.1016/j.envpol.2024.125325","DOIUrl":"https://doi.org/10.1016/j.envpol.2024.125325","url":null,"abstract":"Source identification of atmospheric microplastics (MPs) is crucial for the development of mitigation policies. Compared with wind directions or backward trajectories of air masses, the potential source contribution function (PSCF) analysis identifies more comprehensive sources of atmospheric particles. However, conducting PSCF analysis requires hourly pollutant concentration data, which cannot be met by the atmospheric MPs abundance obtained through commonly used methods. In this study, total suspended particles (TSP) samples were collected hourly and the concentrations of atmospheric polyethylene terephthalate (PET) were detected using a liquid chromatography-tandem mass spectrometry. Atmospheric concentrations of PET MPs were 112.9 ± 39.04 ng/m³ (average ± SD). Based on the hourly backward trajectories of air masses and the varied PET concentrations at the sampling site, potential sources of atmospheric PET were identified by PSCF analysis. The backward trajectory-based method indicates that atmospheric PET of the target site in this study primarily originates from dry farmlands. In comparison, both the residential areas and the dry farmlands were identified by PSCF as major sources of atmospheric PET at the receptor site. In contrast, both the backward-trajectory based method and PSCF analysis indicate that TSP mainly originates from the dry farmlands near the sampling site. This indicates that atmospheric PET in urban areas may have different sources from those of TSP, and PSCF is a suitable method for identifying sources of atmospheric PET.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"247 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142642622","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}