Environmental Pollution最新文献_第5页

Microfibre ingestion by the Asian Clam (Corbicula fluminea) is dependent on fibre type and biofilm development

IF 7.6 2区环境科学与生态学

Environmental Pollution Pub Date : 2025-03-01 DOI: 10.1016/j.envpol.2025.125962

Alisha Higgins, Paul J. Wood, Kate L. Mathers

{"title":"Microfibre ingestion by the Asian Clam (Corbicula fluminea) is dependent on fibre type and biofilm development","authors":"Alisha Higgins, Paul J. Wood, Kate L. Mathers","doi":"10.1016/j.envpol.2025.125962","DOIUrl":"10.1016/j.envpol.2025.125962","url":null,"abstract":"<div><div>Fibrous microplastics represent an anthropogenic pollutant affecting aquatic systems globally. However, fibres formed from natural materials (e.g., cotton or wool) have only recently been recognised as potentially posing similar ecological threats as their synthetic counterparts. In this study we employed a laboratory-based aquarium experiment to examine the ingestion of preselected anthropogenic (polyester – microplastic) and ‘natural’ (cotton) microfibres by the Asian Clam (<em>Corbicula fluminea).</em> We considered how the ingestion, retention, and rejection of preselected microfibres (specific, distinctive colours), differed associated with fibre type (cotton vs polyester), biofilm development (control – no biofilm/uncultured, 1-week culturing and 4-week culturing) and time (1–48 h). We found that the ingestion of microfibres was complex, dependent on the interaction of culturing and fibre type. Greater retention of synthetic microfibres was recorded compared to ‘natural’ microfibres as the duration of culturing increased. We also observed that ingestion of microfibres was immediate but that microfibres were rejected and visually observed in pseudofaeces. Our results suggest that the time microfibres spend within the environment, allowing biofilm to develop on their surface, influences the ingestion of microfibres and we call for further studies to consider this in the future.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"371 ","pages":"Article 125962"},"PeriodicalIF":7.6,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143526092","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}

引用次数: 0

PM2.5 concentration prediction using a whale optimization algorithm based hybrid deep learning model in Beijing, China

IF 7.6 2区环境科学与生态学

Environmental Pollution Pub Date : 2025-03-01 DOI: 10.1016/j.envpol.2025.125953

Qing Wei , Huijin Zhang , Ju Yang , Bin Niu , Zuxin Xu

{"title":"PM2.5 concentration prediction using a whale optimization algorithm based hybrid deep learning model in Beijing, China","authors":"Qing Wei , Huijin Zhang , Ju Yang , Bin Niu , Zuxin Xu","doi":"10.1016/j.envpol.2025.125953","DOIUrl":"10.1016/j.envpol.2025.125953","url":null,"abstract":"<div><div>PM<sub>2.5</sub> is a significant global atmospheric pollutant impacting visibility, climate, and public health. Accurate prediction of PM<sub>2.5</sub> concentrations is critical for assessing air pollution risks and providing early warnings for effective management. This study proposes a novel hybrid machine learning model that combines the whale optimization algorithm (WOA) with a convolutional neural network (CNN), long short-term memory (LSTM), and an attention mechanism (AM) to predict daily PM<sub>2.5</sub> concentrations. Tested with meteorological and air pollution daily data from 2014 to 2018, the WOA-CNN-LSTM-AM model demonstrates substantial improvements. It achieves MAE, RMSE, MBE, and R<sup>2</sup> values of 14.29, 21.96, −0.23, and 0.93, respectively, showing a reduction in prediction errors by 39% compared to CNN and 34% compared to LSTM models. In the medium-term forecast, the accuracy of the hybrid model is 30%–54% over WOA-CNN-LSTM and 26%–39% over CNN-LSTM-AM. The R<sup>2</sup> value decreases by 2.5% from the 1-day to 5-day forecast, maintaining high accuracy. SHAP analysis reveals that NO<sub>2</sub> and CO are the primary drivers for PM<sub>2.5</sub> predictions. This study provides a reliable tool for short and medium-term PM<sub>2.5</sub> prediction and air pollution control.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"371 ","pages":"Article 125953"},"PeriodicalIF":7.6,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143526098","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}

引用次数: 0

Spatial variability of hydrochemistry in coal-bearing karst areas considering sulfur pollution and underground engineering effects 考虑硫污染和地下工程影响的含煤岩溶地区水化学的空间变异性

IF 7.6 2区环境科学与生态学

Environmental Pollution Pub Date : 2025-02-28 DOI: 10.1016/j.envpol.2025.125957

Lujiao Ding , Fugang Wang , Jianfei Yuan , Huizhong Liu , Zhongle Cheng , Yuqing Cao

{"title":"Spatial variability of hydrochemistry in coal-bearing karst areas considering sulfur pollution and underground engineering effects","authors":"Lujiao Ding , Fugang Wang , Jianfei Yuan , Huizhong Liu , Zhongle Cheng , Yuqing Cao","doi":"10.1016/j.envpol.2025.125957","DOIUrl":"10.1016/j.envpol.2025.125957","url":null,"abstract":"<div><div>Coal-bearing karst areas are widely distributed around the world. Coal mining and tunnel construction significantly disturb the natural hydrological cycle and redox environment, leading to spatial variability in hydrochemistry and environmental pollution. Common environmental pollution in coal-bearing karst regions is the elevated sulfate content and the effusion of hydrogen sulfide. This study utilizes hydrochemical, isotope, and microbiological analysis methods to examine the hydrochemical characteristics of groundwater and determine the diversity, population structure, and functional activities of sulfur-associated microbial communities in different locations of underground engineering. Ultimately, based on comprehensively considering the hydrogeological factors such as recharge, water flow system, hydrodynamic characteristics, aquifer characteristics, microbiological characteristics, and underground engineering, the hydrochemical characteristics formation mode of the study area has been proposed. The study provides insights into sulfur biogeochemical processes, aiding efforts to mitigate mine water pollution and hydrogen sulfide issues in these regions.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"371 ","pages":"Article 125957"},"PeriodicalIF":7.6,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143526216","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}

引用次数: 0

Microplastics in sandy soils: Alterations in thermal conductivity, surface albedo, and temperature

IF 7.6 2区环境科学与生态学

Environmental Pollution Pub Date : 2025-02-28 DOI: 10.1016/j.envpol.2025.125956

Milad Aminzadeh , Tanmay Kokate , Nima Shokri

{"title":"Microplastics in sandy soils: Alterations in thermal conductivity, surface albedo, and temperature","authors":"Milad Aminzadeh , Tanmay Kokate , Nima Shokri","doi":"10.1016/j.envpol.2025.125956","DOIUrl":"10.1016/j.envpol.2025.125956","url":null,"abstract":"<div><div>Rapid growth in plastic production has exacerbated disposal of plastic wastes in terrestrial ecosystems. Unfortunately, soils represent large reservoirs for disposal of microplastics (MPs). MPs infiltrate into the soil through various pathways and alter its intrinsic properties. Despite advances in understanding the impact of MPs on soil physical, biological, and hydrological processes, their influence on surface energy balance and soil temperature remains understudied. Such information is more necessary than ever, considering the ongoing changes to soil systems caused by climate variations and extremes. We conducted laboratory experiments on sandy soils to investigate how MPs with different characteristics impact soil temperature dynamics. The changes in the soil thermal conductivity and surface albedo, in the presence of polyethylene (PE) and polyvinylchloride (PVC) particles at various concentrations were measured. The results demonstrate that MPs, and particularly PVC, with amorphous characteristics may decrease effective thermal conductivity of sand by 38%. Moreover, the deposition of MPs at the surface of samples may increase surface albedo by 28% and 77% with addition of 5% PVC and 5% PE, respectively. Such effects are pronounced at higher soil moisture contents, facilitating migration and deposition of MPs on the surface. We ultimately examined the impact of changes in soil thermal and radiative properties on soil temperature dynamics by monitoring the thermal regime in drying sand columns. Our findings indicate that MPs significantly alter evaporative flux and subsurface temperature profile, hence providing insights into understanding the changes in soil energy balance due to the presence of MPs.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"372 ","pages":"Article 125956"},"PeriodicalIF":7.6,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143526096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Degradation of trichloroethylene by graphene-supported trace amounts of microscale zero-valent iron: The role of electrochemistry

IF 7.6 2区环境科学与生态学

Environmental Pollution Pub Date : 2025-02-28 DOI: 10.1016/j.envpol.2025.125951

Ruifei Li, Cheng Sun, Zehan Shi, Chunyang Li, Hui Li

{"title":"Degradation of trichloroethylene by graphene-supported trace amounts of microscale zero-valent iron: The role of electrochemistry","authors":"Ruifei Li, Cheng Sun, Zehan Shi, Chunyang Li, Hui Li","doi":"10.1016/j.envpol.2025.125951","DOIUrl":"10.1016/j.envpol.2025.125951","url":null,"abstract":"<div><div>Dechlorination of chlorinated pollutants is an important means to reduce the toxicity, persistence and bioaccumulation of pollutants. Relevant to this matter, the utilization of microscale zero-valent iron (mZVI) shows great potential. However, the passivation of Fe<sup>0</sup> presents challenges, resulting in slow dechlorination, dangerous accumulation of incomplete dechlorination intermediates, and susceptibility to corrosion. To solve this problem, we introduced graphene (GO) to modify mZVI. The results showed that mZVI-GO (99% removal rate) could significantly increase the dechlorination capacity of trichloroethylene (TCE) compared to sole mZVI (30% removal rate), with approximately three times the performance of mZVI. The final products are ethylene and ethane with peak concentrations of around 70% and 30%, respectively. Importantly, the final system avoids toxic by-products. At the same time, after four cycles of mZVI-GO experiment, the removal effect of TCE can reach 85%, indicating that it has good recyclability. In corrosion tests, mZVI-GO is more corrosion-resistant than mZVI. The addition of GO during dechlorination diminishes the corrosion potential of mZVI, elevates its electron transfer capacity and reactivity, and enables more direct electron transfer to facilitate TCE degradation. Additionally, the improved electrochemical properties also facilitate the interaction between mZVI and water, leading to the continual generation of H∗, and creates a synergistic effect between GO and mZVI, thereby accelerating the dechlorination of TCE. This study elucidated the pivotal role of electrochemical properties in facilitating the reduction and dechlorination of TCE, thereby providing a novel approach for achieving profound TCE dechlorination.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"371 ","pages":"Article 125951"},"PeriodicalIF":7.6,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143526097","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}

引用次数: 0

Hydrogen peroxide signaling mediates dopamine-induced chromium stress tolerance in tomato

IF 7.6 2区环境科学与生态学

Environmental Pollution Pub Date : 2025-02-28 DOI: 10.1016/j.envpol.2025.125949

Golam Jalal Ahammed , Shuangsheng Sun , Kehao Qu , Jingying Chen , Yifan Dong , Airong Liu , Shuangchen Chen

{"title":"Hydrogen peroxide signaling mediates dopamine-induced chromium stress tolerance in tomato","authors":"Golam Jalal Ahammed , Shuangsheng Sun , Kehao Qu , Jingying Chen , Yifan Dong , Airong Liu , Shuangchen Chen","doi":"10.1016/j.envpol.2025.125949","DOIUrl":"10.1016/j.envpol.2025.125949","url":null,"abstract":"<div><div>Toxic heavy metal chromium (Cr) poses significant risks to crop yields and human health through contamination of the food chain. Dopamine, a naturally occurring bioactive amine, can enhance plant tolerance to various abiotic stresses; however, its specific role in Cr stress tolerance and the associated molecular mechanisms remain largely unexplored. In this study, we demonstrate that root application of dopamine effectively mitigates Cr stress in tomato plants. Cr stress was found to decrease chlorophyll content, maximum photochemical efficiency, shoot growth, and biomass accumulation, while simultaneously increasing reactive oxygen species (ROS) accumulation, lipid peroxidation, and electrolyte leakage. Exogenous dopamine application significantly reduced excessive ROS accumulation and malondialdehyde levels, thereby alleviating oxidative stress. This was achieved through the enhancement of antioxidant enzyme activity, increased glutathione and phytochelatin contents, and the upregulation of the expression of respective encoding genes, including <em>Cu-Zn SOD, POD, CAT1, APX, GR1, GSH2,</em> and <em>PCS</em>. Additionally, dopamine treatment induced the expression of <em>RBOH1</em> and reduced Cr content. Notably, exogenous H<sub>2</sub>O<sub>2</sub> application also improved Cr tolerance, but the application of diphenyleneiodonium, an NADPH oxidase inhibitor, exacerbated Cr phytotoxicity and diminished the beneficial effects of dopamine on plant tolerance to Cr stress. These findings suggest that dopamine-induced H<sub>2</sub>O<sub>2</sub> signaling plays a crucial role in enhancing Cr tolerance. This study elucidates a fundamental mechanism underlying dopamine-mediated Cr tolerance and expands our understanding of the stress resistance properties of dopamine in plants.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"371 ","pages":"Article 125949"},"PeriodicalIF":7.6,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143518199","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}

引用次数: 0

The role of metal–organic framework (MOF) in laccase immobilization for advanced biocatalyst formation for use in micropollutants removal

IF 7.6 2区环境科学与生态学

Environmental Pollution Pub Date : 2025-02-28 DOI: 10.1016/j.envpol.2025.125954

Agnieszka Rybarczyk , Wojciech Smułek , Aleksander Ejsmont , Joanna Goscianska , Teofil Jesionowski , Jakub Zdarta

{"title":"The role of metal–organic framework (MOF) in laccase immobilization for advanced biocatalyst formation for use in micropollutants removal","authors":"Agnieszka Rybarczyk , Wojciech Smułek , Aleksander Ejsmont , Joanna Goscianska , Teofil Jesionowski , Jakub Zdarta","doi":"10.1016/j.envpol.2025.125954","DOIUrl":"10.1016/j.envpol.2025.125954","url":null,"abstract":"<div><div>A detailed physicochemical and functional analysis of immobilized laccase on Cu-BDC material was carried out to evaluate its efficiency and stability in the removal of 17<em>α</em>-ethynylestradiol (EE2). Structural and morphological studies of Cu-BDC before and after laccase immobilization were conducted using SEM, CLSM, and AFM microscopy. Before immobilization, the material was characterized by a smooth structure with few defects, numerous free spaces, and open internal channels. After laccase immobilization, the MOF surface was coated with the enzyme, forming agglomerates of irregular shape, confirmed by an increase in particle number and a decrease in surface roughness. The immobilization process achieved an efficiency of more than 80%, with 88% retention of the enzyme's catalytic activity. The kinetic and thermodynamic parameters indicated higher stability of the immobilized laccase compared to the free enzyme, suggesting that MOF provides a suitable support for enzyme immobilization, enhancing its stability and efficiency. The fabricated biocatalytic systems also exhibited greater tolerance to varying pH and temperature conditions as compared to the free enzyme. These biocatalytic systems demonstrated high efficiency in the degradation of 17<em>α</em>-ethynylestradiol from model solutions and real wastewater. The results obtained indicate that the immobilization of laccase on a Cu-BDC carrier can be an effective solution for bioremediation processes of pollutants in wastewater, opening up prospects for the wide application of this technology in the water and wastewater industry.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"371 ","pages":"Article 125954"},"PeriodicalIF":7.6,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143526095","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}

引用次数: 0

Characteristics of intestinal microbial communities and occurrence of antibiotic resistance genes during degradation of antibiotic mycelial residues by black soldier fly (Hermetia illucens L.) larvae

IF 7.6 2区环境科学与生态学

Environmental Pollution Pub Date : 2025-02-27 DOI: 10.1016/j.envpol.2025.125940

Yaxin Pei, Mengxiao Sun, Minghui Wang, Aojie Lei, Xinyu Liu, Hongge Chen, Sen Yang

{"title":"Characteristics of intestinal microbial communities and occurrence of antibiotic resistance genes during degradation of antibiotic mycelial residues by black soldier fly (Hermetia illucens L.) larvae","authors":"Yaxin Pei, Mengxiao Sun, Minghui Wang, Aojie Lei, Xinyu Liu, Hongge Chen, Sen Yang","doi":"10.1016/j.envpol.2025.125940","DOIUrl":"10.1016/j.envpol.2025.125940","url":null,"abstract":"<div><div>The disposal of antibiotic mycelial residues (AMR) presents a distinctive challenge as hazardous organic waste, posing a persistent dilemma for pharmaceutical enterprises in the search for safe and effective solutions. Research has focused on treating chlortetracycline mycelial residue (CMR) using black soldier fly larvae (BSFL) with wheat straw. Different CMR/wheat ratios (0:1 CK, 1:20 L, 1:4 M, and 1:2 H) were used as larval biotransformation substrates. Comprehensive investigations were conducted on BSFL biophysiological parameters, CMR conversion, chlortetracycline (CTC) degradation, the microbial community, the prevalence of antibiotic resistance genes (ARGs), and functional microbes in the BSFL gut. The substrate consumption rates ranged from 28.9% to 34.9%, with the harvested BSFL biomass reaching 0.50–1.04 g/10 larvae. Effective degradation of CTC was observed, with a degradation rate ranging from 32.0% to 61.1%. Tetracycline resistance genes (TRGs) predominated among the ARGs. Three TRG classes (<em>tet_rpp</em>, <em>tet_efflux</em>, and <em>tet_mod</em>) were confirmed in the BSFL intestinal microbiota. A total of 341 out of 368 ARG classes presented significant positive correlations with each other, facilitated by plasmids and integrons. Notably, <em>Clostridium</em>, <em>Enterococcus</em>, <em>Leucobacter</em>, and <em>Morganella</em> were identified as hosts of TRGs, whereas <em>Dysgonomonas</em>, <em>Bacteroides</em>, and <em>Massilibacteroides</em> were the key contributors to BSFL biomass. These findings underscore the ability of the BSFL intestinal microbiota to digest and convert CMR, supporting the simultaneous AFR transformation by BSFL with wheat straw addition.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"371 ","pages":"Article 125940"},"PeriodicalIF":7.6,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143506923","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}

引用次数: 0

Variability in maternal transfer efficiency of trace elements in green turtles (Chelonia mydas)

IF 7.6 2区环境科学与生态学

Environmental Pollution Pub Date : 2025-02-27 DOI: 10.1016/j.envpol.2025.125942

Li Jian , Xiang Li , Xiaobo Zheng , Henyi Zhang , Minyu Fu , Rui Guo , Jichao Wang

{"title":"Variability in maternal transfer efficiency of trace elements in green turtles (Chelonia mydas)","authors":"Li Jian , Xiang Li , Xiaobo Zheng , Henyi Zhang , Minyu Fu , Rui Guo , Jichao Wang","doi":"10.1016/j.envpol.2025.125942","DOIUrl":"10.1016/j.envpol.2025.125942","url":null,"abstract":"<div><div>The transfer of trace elements (TEs) from female sea turtles to their eggs is crucial in providing essential nutrition for embryonic development, while also posing a potential risk of pollutant exposure. This study aimed to quantify the concentrations of TEs in the claws and epidermis of nesting females, as well as in egg contents and embryos, and to investigate the migration of TEs during the maternal transfer in green turtles. The findings revealed that the maternal transfer coefficients for essential elements including Fe, Cu, and Zn (excluding those derived from accumulated tissue) ranged from 1.0 to 10.0, while the coefficients for non-essential elements such as Cd, As, and Hg were found to be below 1.0. During embryonic development, the migration coefficients of Fe, Mn, Ni, Zn and Sr exhibited a progressive increase, reaching their peak at stages 27–31 with values of 9.14 for Fe, 6.52 for Mn, 6.34 for Ni, 2.90 for Zn, and 2.66 for Sr. This indicates a high efficiency in the assimilation of these elements. Conversely, the migration coefficients of Cu, Se, Cd, Pb, and Hg declined rapidly after peaking at stages 19–22. Additionally, the kidneys of final-stage embryos and hatchlings exhibited significantly higher levels of non-essential elements compared to other tissues, while the liver displayed higher concentrations of Cu. These results suggest that early-stage embryos are particularly vulnerable to the adverse effects of non-essential or excessive essential elements, and as well, they indicate the presence of potential detoxification mechanisms that may develop following tissue and organ formation, which warrants further investigation.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"371 ","pages":"Article 125942"},"PeriodicalIF":7.6,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143507306","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}

引用次数: 0

Generation characteristics of polybrominated and polychlorinated dibenzo-p-dioxins/furans (PBDD/Fs and PCDD/Fs) under varying incineration conditions of municipal solid waste

IF 7.6 2区环境科学与生态学

Environmental Pollution Pub Date : 2025-02-27 DOI: 10.1016/j.envpol.2025.125946

Ming-Yang Liu , Ai-Min Song , Hui-Ru Li , Sheng-Tao Ma , Ren-Jie Shang , Yao Xiao , Ping-An Peng , Jian-Fang Hu

{"title":"Generation characteristics of polybrominated and polychlorinated dibenzo-p-dioxins/furans (PBDD/Fs and PCDD/Fs) under varying incineration conditions of municipal solid waste","authors":"Ming-Yang Liu , Ai-Min Song , Hui-Ru Li , Sheng-Tao Ma , Ren-Jie Shang , Yao Xiao , Ping-An Peng , Jian-Fang Hu","doi":"10.1016/j.envpol.2025.125946","DOIUrl":"10.1016/j.envpol.2025.125946","url":null,"abstract":"<div><div>Municipal solid waste incinerators (MSWIs) are deemed important sources of polychlorinated and polybrominated dibenzo-<em>p</em>-dioxin/furans (PCDD/Fs and PBDD/Fs). However, compared to PCDD/Fs, the emission characteristics of MSWI-derived PBDD/Fs have been rarely studied. Here we selected a long-term operating MSWI, investigated the generation of PBDD/Fs under varying incineration conditions within the normal range, and compared them to those of PCDD/Fs. Generally, PBDD/Fs exhibited mass-based emission factors (mass-EFs) one order of magnitude higher than those of PCDD/Fs and were predominantly released via slag, as were PCDD/Fs, though at lower percentages. Both PBDD/Fs and PCDD/Fs showed significant changes in emissions with the variations in waste load, O<sub>2</sub> content, and waste composition, particularly PBDD/Fs. Comparatively, furnace-derived PBDD/Fs demonstrated heightened sensitivity to waste load and composition, whereas PCDD/Fs were primarily influenced by O<sub>2</sub> levels, followed by waste composition; PCDD/Fs consistently exhibited increasing mass-EFs under unconventional conditions and PCDD/Fs in filtered fly ash were highly sensitive to all the three variables, while filtered PBDD/Fs remained insensitive to these conditions. Data comparison between raw flue gas and filtered fly ash indicated secondary generation of PBDD/Fs and PCDD/Fs during gas purification, as well as the insufficient dioxin-trapping efficiency of bag filters, particularly for PBDD/Fs. Therefore, MSWI-derived PBDD/Fs and dioxins in slag and other MSWI-derived wastes warrant significant attention.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"371 ","pages":"Article 125946"},"PeriodicalIF":7.6,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143506925","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}

引用次数: 0