Pub Date : 2025-04-22DOI: 10.1016/j.envpol.2025.126270
Junfan Zhang , Yuzhi Xuan , Jingjing Lei , Liping Bai , Guobang Zhou , Yuelong Mao , Peinian Gong , Menghuan Zhang , Dajian Pan
With the expansion of human industrial activities, heavy metal contamination in groundwater environments has become increasingly severe. Environmental management agencies invest significant financial resources into groundwater monitoring, primarily due to its inherent invisibility. Automatic monitoring is a new way to monitor groundwater, the existing sensors often can only achieve simple indicators, and it is difficult to achieve complex indicators such as heavy metals. This study integrated pH and conductivity online monitoring probes with machine learning algorithms to develop a real-time, automated heavy metal prediction system for groundwater. The predictive performance demonstrated that the highest R2 values for chromium (Cr), nickel (Ni), and copper (Cu) were 0.73, 0.78, and 0.87, respectively, with mean absolute errors of 11.9, 0.83, and 1.02 μg/L. While random forest and extreme gradient boosting (XGB) models demonstrate greater robustness. To enhance the practicality and management significance of the prediction system, interval prediction is employed. Uncertainty assessment results indicate that the performance order of prediction intervals across different models is XGB > Random Forest > Multiple Linear Regression (MLR) > Backpropagation neural network (BP). We proposed that Groundwater risk is acceptable when the prediction interval of pollutants falls below regional screening levels. The integration of automated sensors with machine learning algorithms can offer advanced recommendations for long-term environmental monitoring.
{"title":"Heavy metals prediction system in groundwater using online sensor and machine learning for water management: the case of typical industrial park","authors":"Junfan Zhang , Yuzhi Xuan , Jingjing Lei , Liping Bai , Guobang Zhou , Yuelong Mao , Peinian Gong , Menghuan Zhang , Dajian Pan","doi":"10.1016/j.envpol.2025.126270","DOIUrl":"10.1016/j.envpol.2025.126270","url":null,"abstract":"<div><div>With the expansion of human industrial activities, heavy metal contamination in groundwater environments has become increasingly severe. Environmental management agencies invest significant financial resources into groundwater monitoring, primarily due to its inherent invisibility. Automatic monitoring is a new way to monitor groundwater, the existing sensors often can only achieve simple indicators, and it is difficult to achieve complex indicators such as heavy metals. This study integrated pH and conductivity online monitoring probes with machine learning algorithms to develop a real-time, automated heavy metal prediction system for groundwater. The predictive performance demonstrated that the highest R<sup>2</sup> values for chromium (Cr), nickel (Ni), and copper (Cu) were 0.73, 0.78, and 0.87, respectively, with mean absolute errors of 11.9, 0.83, and 1.02 μg/L. While random forest and extreme gradient boosting (XGB) models demonstrate greater robustness. To enhance the practicality and management significance of the prediction system, interval prediction is employed. Uncertainty assessment results indicate that the performance order of prediction intervals across different models is XGB > Random Forest > Multiple Linear Regression (MLR) > Backpropagation neural network (BP). We proposed that Groundwater risk is acceptable when the prediction interval of pollutants falls below regional screening levels. The integration of automated sensors with machine learning algorithms can offer advanced recommendations for long-term environmental monitoring.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"374 ","pages":"Article 126270"},"PeriodicalIF":7.6,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143860653","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}
Pub Date : 2025-04-22DOI: 10.1016/j.envpol.2025.126297
Zeyu Wang, Lingxiu Liu, Hongye Fan, Dongyun Ye, Dzmitry Hrynsphan, Savitskaya Tatsiana, Xiaole Weng, Jun Chen
Volatile organic compounds (VOCs) emitted from the pharmaceutical industry, such as n-hexane, dichloromethane (DCM), and N, N-dimethylacetamide (DMAC), pose significant environmental and health risks. This study evaluates the performance of a bamboo charcoal-based bio-trickling filter (BTF) in removing these VOCs, comparing two systems: BTF-a, treating only n-hexane, and BTF-b, treating a mixture of n-hexane, DCM, and DMAC. After 26 days of operation at an n-hexane concentration of 100 mg·m-3, BTF-b achieved a removal efficiency (RE) of 87.25% for n-hexane, significantly higher than the 62% in BTF-a, showcasing the synergistic effects of multi-component VOCs. As the DMAC concentration increased from 100 mg·L-1 to 500 mg·L-1, the RE of n-hexane improved from 65.93% to 82.08%, with a significant enhancement in the mass transfer coefficient (KLa) from 1.75×10-6 to 6.34×1-5 s-1, demonstrating the positive promotional effect of DMAC on n-hexane biodegradation. Conversely, high DCM concentrations (750 mg·m-3) reduced the RE of n-hexane to 58.57% due to substrate competition. The extracellular proteins (PN) content rose from 16.76 mg·g-1 to 18.73 mg·g-1. Microbial analysis after 220d operation revealed the enrichment of Mycobacterium (57.67%) and Hyphomicrobium (5.38%), key genera involved in VOCs biodegradation. Metabolic pathway analysis showed n-hexane and DMAC were transformed into intermediates, including hexanoic acid and acetic acid, demonstrating both pollutant removal and resource recovery potential. These findings highlight the synergistic role of hydrophilic VOCs, which are more hydrophilic than n-hexane, in promoting the biodegradation of hydrophobic pollutants, as well as the feasibility of BTF for treating multi-component VOCs.
{"title":"Synergistic Enhancement of Hydrophobic n-Hexane Biodegradation in a Biotrickling Filter: Role of Hydrophilic VOCs in Mass Transfer and Extracellular Polymeric Secretion","authors":"Zeyu Wang, Lingxiu Liu, Hongye Fan, Dongyun Ye, Dzmitry Hrynsphan, Savitskaya Tatsiana, Xiaole Weng, Jun Chen","doi":"10.1016/j.envpol.2025.126297","DOIUrl":"https://doi.org/10.1016/j.envpol.2025.126297","url":null,"abstract":"Volatile organic compounds (VOCs) emitted from the pharmaceutical industry, such as <em>n</em>-hexane, dichloromethane (DCM), and <em>N</em>, <em>N</em>-dimethylacetamide (DMAC), pose significant environmental and health risks. This study evaluates the performance of a bamboo charcoal-based bio-trickling filter (BTF) in removing these VOCs, comparing two systems: BTF-a, treating only <em>n</em>-hexane, and BTF-b, treating a mixture of <em>n</em>-hexane, DCM, and DMAC. After 26 days of operation at an <em>n</em>-hexane concentration of 100 mg·m<sup>-3</sup>, BTF-b achieved a removal efficiency (RE) of 87.25% for <em>n</em>-hexane, significantly higher than the 62% in BTF-a, showcasing the synergistic effects of multi-component VOCs. As the DMAC concentration increased from 100 mg·L<sup>-1</sup> to 500 mg·L<sup>-1</sup>, the RE of <em>n</em>-hexane improved from 65.93% to 82.08%, with a significant enhancement in the mass transfer coefficient (K<sub>L</sub>a) from 1.75×10<sup>-6</sup> to 6.34×1<sup>-5</sup> s<sup>-1</sup>, demonstrating the positive promotional effect of DMAC on <em>n</em>-hexane biodegradation. Conversely, high DCM concentrations (750 mg·m<sup>-3</sup>) reduced the RE of <em>n</em>-hexane to 58.57% due to substrate competition. The extracellular proteins (PN) content rose from 16.76 mg·g<sup>-1</sup> to 18.73 mg·g<sup>-1</sup>. Microbial analysis after 220d operation revealed the enrichment of <em>Mycobacterium</em> (57.67%) and <em>Hyphomicrobium</em> (5.38%), key genera involved in VOCs biodegradation. Metabolic pathway analysis showed <em>n-</em>hexane and DMAC were transformed into intermediates, including hexanoic acid and acetic acid, demonstrating both pollutant removal and resource recovery potential. These findings highlight the synergistic role of hydrophilic VOCs, which are more hydrophilic than <em>n</em>-hexane, in promoting the biodegradation of hydrophobic pollutants, as well as the feasibility of BTF for treating multi-component VOCs.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"7 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143862823","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}
Pub Date : 2025-04-22DOI: 10.1016/j.envpol.2025.126298
Sadhana Shrestha, Bikash Malla, Eiji Haramoto
Bacterial wastewater surveillance (WS) is less explored area compared to viral WS despite high burden of bacterial respiratory and gastrointestinal infections worldwide. This study established a 6-plex Crystal Digital PCR® (cdPCR) system, to comprehensively monitor an acute respiratory pathogen - Group A Streptococcus pyogenes, foodborne disease (FBD) pathogens - Clostridium perfringens, Salmonella spp., Campylobacter jejuni, and Campylobacter coli, and an indicator bacterium, Escherichia coli in wastewater. Fifty-two grab influent samples collected weekly from a wastewater treatment plant in Yamanashi Prefecture, Japan, between June 2023 and May 2024 were centrifuged, followed by DNA extraction and cdPCR. cdPCR was performed using the naica® system (Stilla Technologies). The 6-plex cdPCR assays showed strong performance. Among the 52 samples, 100% of samples were positive for C. perfringens, 98% for Salmonella spp., 56% for C. jejuni, 25% for C. coli, and 63% for S. pyogenes, with concentrations ranging between 4.2 ± 0.3 to 7.5 ± 0.2 log10 copies/L. The concentration of C. perfringens was significantly higher than that of other pathogens (One-way ANOVA, p-value < 0.05), indicating its dominance. Salmonella spp. had high detection rate implying increased Salmonella infection in the population. Seaonal variation was not observed in any of FBD pathogens except for the detection rate of C. coli. S. pyogenes concentrations were significantly higher in spring than in other seasons, agreeing with the trend of GAS pharyngitis cases in the catchment. In conclusion, the 6-plex cdPCR system is a valuable tool for comprehensive WS, offering significant implications for public health monitoring.
{"title":"6-plex Crystal Digital PCR® for comprehensive surveillance of respiratory and foodborne bacterial pathogens in wastewater","authors":"Sadhana Shrestha, Bikash Malla, Eiji Haramoto","doi":"10.1016/j.envpol.2025.126298","DOIUrl":"https://doi.org/10.1016/j.envpol.2025.126298","url":null,"abstract":"Bacterial wastewater surveillance (WS) is less explored area compared to viral WS despite high burden of bacterial respiratory and gastrointestinal infections worldwide. This study established a 6-plex Crystal Digital PCR® (cdPCR) system, to comprehensively monitor an acute respiratory pathogen - Group A <em>Streptococcus pyogenes</em>, foodborne disease (FBD) pathogens - <em>Clostridium perfringens</em>, <em>Salmonella</em> spp., <em>Campylobacter jejuni,</em> and <em>Campylobacter coli</em>, and an indicator bacterium, <em>Escherichia coli</em> in wastewater. Fifty-two grab influent samples collected weekly from a wastewater treatment plant in Yamanashi Prefecture, Japan, between June 2023 and May 2024 were centrifuged, followed by DNA extraction and cdPCR. cdPCR was performed using the naica® system (Stilla Technologies). The 6-plex cdPCR assays showed strong performance. Among the 52 samples, 100% of samples were positive for <em>C. perfringens</em>, 98% for <em>Salmonella</em> spp., 56% for <em>C. jejuni</em>, 25% for <em>C. coli,</em> and 63% for <em>S. pyogenes,</em> with concentrations ranging between 4.2 ± 0.3 to 7.5 ± 0.2 log<sub>10</sub> copies/L. The concentration of <em>C. perfringens</em> was significantly higher than that of other pathogens (One-way ANOVA, <em>p</em>-value < 0.05), indicating its dominance. <em>Salmonella</em> spp. had high detection rate implying increased <em>Salmonella</em> infection in the population. Seaonal variation was not observed in any of FBD pathogens except for the detection rate of <em>C. coli</em>. <em>S. pyogenes</em> concentrations were significantly higher in spring than in other seasons, agreeing with the trend of GAS pharyngitis cases in the catchment. In conclusion, the 6-plex cdPCR system is a valuable tool for comprehensive WS, offering significant implications for public health monitoring.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"4 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143862821","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}
Pub Date : 2025-04-21DOI: 10.1016/j.envpol.2025.126289
Sajjad Abbasi, Neda Hashemi, Viktorija Sabaliauskaitė, Nikolaos Evangeliou, Nerijus Dzingelevičius, Arūnas Balčiūnas, Reda Dzingelevičienė
This study examines the distribution and abundance of microplastics (MPs) in the Europe’s largest coastal lagoon, Curonian Lagoon, and adjacent Baltic Sea, focusing on water, surface sediment, and atmospheric deposition. Fibrous MPs, predominantly 1,000–5,000 μm in size, were the most prevalent across all environments. White/transparent MPs dominated sediment and atmospheric deposition, while blue/green MPs were most abundant in water. Low-density polymers accounted for 70% of MPs in water, whereas high-density polymers were dominant in sediment (62%), with equal proportions found in atmospheric deposition. The average MP concentration was higher in the lagoon (1.7 ± 1.2 MP L-1) compared to the Baltic Sea (1.3 ± 0.4 MP L-1), with an estimated 66.7 × 109 MPs year-1. flowing from the lagoon into the sea. Atmospheric deposition introduced a substantial MP influx, estimated at 27.8 × 1012 MPs year-1, exceeding the river influx of 20.7 × 109 MP year-1. MP deposition was higher in terrestrial environments (72.5 MP m-2 day-1) than in aquatic environments (60.4 MP m-2 day-1 in the sea and 48.3 MP m-2 day-1 in the lagoon). The estimated MP budget in lagoon water was 10.8 × 109 MP particles, with a residence time of approximately 27 days. MP concentrations in surface sediment (405.7 ± 192.9 MP kg-1) indicate long-term accumulation, suggesting substantial MP deposition in lagoon sediments. Atmospheric transport modeling (FLEXPART) identified Europe, Russia, and oceanic sources as key contributors, alongside local inputs from agriculture, sea spray, and road dust. Understanding MP dynamics in coastal ecosystems is urgent to inform mitigation strategies, regulatory policies, and risk assessments, particularly given the long-term accumulation in sediments and potential for ecological harm.
{"title":"Fluxes, residence times, and the budget of microplastics in the Curonian Lagoon","authors":"Sajjad Abbasi, Neda Hashemi, Viktorija Sabaliauskaitė, Nikolaos Evangeliou, Nerijus Dzingelevičius, Arūnas Balčiūnas, Reda Dzingelevičienė","doi":"10.1016/j.envpol.2025.126289","DOIUrl":"https://doi.org/10.1016/j.envpol.2025.126289","url":null,"abstract":"This study examines the distribution and abundance of microplastics (MPs) in the Europe’s largest coastal lagoon, Curonian Lagoon, and adjacent Baltic Sea, focusing on water, surface sediment, and atmospheric deposition. Fibrous MPs, predominantly 1,000–5,000 μm in size, were the most prevalent across all environments. White/transparent MPs dominated sediment and atmospheric deposition, while blue/green MPs were most abundant in water. Low-density polymers accounted for 70% of MPs in water, whereas high-density polymers were dominant in sediment (62%), with equal proportions found in atmospheric deposition. The average MP concentration was higher in the lagoon (1.7 ± 1.2 MP L<sup>-1</sup>) compared to the Baltic Sea (1.3 ± 0.4 MP L<sup>-1</sup>), with an estimated 66.7 × 10<sup>9</sup> MPs year<sup>-1</sup>. flowing from the lagoon into the sea. Atmospheric deposition introduced a substantial MP influx, estimated at 27.8 × 10<sup>12</sup> MPs year<sup>-1</sup>, exceeding the river influx of 20.7 × 10<sup>9</sup> MP year<sup>-1</sup>. MP deposition was higher in terrestrial environments (72.5 MP m<sup>-2</sup> day<sup>-1</sup>) than in aquatic environments (60.4 MP m<sup>-2</sup> day<sup>-1</sup> in the sea and 48.3 MP m<sup>-2</sup> day<sup>-1</sup> in the lagoon). The estimated MP budget in lagoon water was 10.8 × 10<sup>9</sup> MP particles, with a residence time of approximately 27 days. MP concentrations in surface sediment (405.7 ± 192.9 MP kg<sup>-1</sup>) indicate long-term accumulation, suggesting substantial MP deposition in lagoon sediments. Atmospheric transport modeling (FLEXPART) identified Europe, Russia, and oceanic sources as key contributors, alongside local inputs from agriculture, sea spray, and road dust. Understanding MP dynamics in coastal ecosystems is urgent to inform mitigation strategies, regulatory policies, and risk assessments, particularly given the long-term accumulation in sediments and potential for ecological harm.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"41 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143853217","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}
Fluorinated liquid-crystal monomers (FLCMs) are widespread environmental contaminants with potential endocrine-disrupting effects. Infants are particularly vulnerable, yet their exposure remains unclear. This study analyzed FLCMs in urine samples from 190 paired mothers and infants in Beijing, detecting 34 and 35 FLCMs, respectively. Median creatinine-corrected concentrations were 1.83 μg/g (unadjusted concentrations: 1.28 ng/mL) for mothers and 3.28 μg/g (0.60 ng/mL) for infants. 1-butoxy-2,3-difluoro-4-(trans-4-propylcyclohexyl) benzene (BDPrB) and 1-ethyl-4-[(4-fluorophenyl) ethynyl] benzene (EFPEB) were identified as the primary detected contaminants. A significant positive correlation in urine concentrations between mothers and infants was observed only for 2'-Fluoro-4''-propyl-[1,1':4',1''-terphenyl]-4-carbonitrile (FPTC) (rs = 0.23, p = 0.023). Certain FLCMs were associated with infant feeding patterns, maternal parity, and environmental exposure, including dust and cleaning frequency (p < 0.05). The results of the study showed that the median estimated daily intakes (EDIs) of ∑FLCMs for mothers and infants were 526 and 425 ng/kg bw/day, respectively, with no significant difference between them (p > 0.05). Further stratification of the data by sex revealed that for male infants, the EDI values for BDPrB and EFPEB were greater (p < 0.05). These findings emphasize the need for greater research on the health effects of FLCMs on infants, particularly considering gender differences.
{"title":"Fluorinated Liquid-Crystal Monomers Distribution in Paired Urine from Mothers and Infants","authors":"Runhui Yang, Yanli Zhang, Qun Gao, Chenhui Sang, Yumin Niu, Shiyu Du, Bing Shao","doi":"10.1016/j.envpol.2025.126283","DOIUrl":"https://doi.org/10.1016/j.envpol.2025.126283","url":null,"abstract":"Fluorinated liquid-crystal monomers (FLCMs) are widespread environmental contaminants with potential endocrine-disrupting effects. Infants are particularly vulnerable, yet their exposure remains unclear. This study analyzed FLCMs in urine samples from 190 paired mothers and infants in Beijing, detecting 34 and 35 FLCMs, respectively. Median creatinine-corrected concentrations were 1.83 μg/g (unadjusted concentrations: 1.28 ng/mL) for mothers and 3.28 μg/g (0.60 ng/mL) for infants. 1-butoxy-2,3-difluoro-4-(trans-4-propylcyclohexyl) benzene (BDPrB) and 1-ethyl-4-[(4-fluorophenyl) ethynyl] benzene (EFPEB) were identified as the primary detected contaminants. A significant positive correlation in urine concentrations between mothers and infants was observed only for 2'-Fluoro-4''-propyl-[1,1':4',1''-terphenyl]-4-carbonitrile (FPTC) (r<sub>s</sub> = 0.23, <em>p</em> = 0.023). Certain FLCMs were associated with infant feeding patterns, maternal parity, and environmental exposure, including dust and cleaning frequency (<em>p</em> < 0.05). The results of the study showed that the median estimated daily intakes (EDIs) of ∑FLCMs for mothers and infants were 526 and 425 ng/kg bw/day, respectively, with no significant difference between them (<em>p</em> > 0.05). Further stratification of the data by sex revealed that for male infants, the EDI values for BDPrB and EFPEB were greater (<em>p</em> < 0.05). These findings emphasize the need for greater research on the health effects of FLCMs on infants, particularly considering gender differences.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"108 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143853222","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}
Pub Date : 2025-04-21DOI: 10.1016/j.envpol.2025.126284
Michael S. Bank, Zoyne Pedrero Zayas, Vernon Somerset, Lynwill G. Martin, Milena Horvat
Section snippets
Uncited reference
Ishikawa, 2018; Minamata Convention on Mercury, 2024; Pang et al., 2022; Schuster et al., 2018.
Declaration of Competing Interest
☒ The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
Acknowledgments
We are grateful to Dr. Baohua Gu (retired) for all his efforts related to the special issue. This project has received funding from the European Union’s Horizon 2020 research and innovation MSCA-RISE program under grant agreement No. 101007962 (merfish.eu) to MSB, Z.P-Z, and MH and the EU Marie Sklodowska-Curie GMOS-Train grant agreement no. 860497. We are grateful to the editorial staff at Environmental Pollution and to all the authors, readers, and peer reviewers of this SI for their kind
{"title":"Climate change, mercury pollution, and global ecology","authors":"Michael S. Bank, Zoyne Pedrero Zayas, Vernon Somerset, Lynwill G. Martin, Milena Horvat","doi":"10.1016/j.envpol.2025.126284","DOIUrl":"https://doi.org/10.1016/j.envpol.2025.126284","url":null,"abstract":"<h2>Section snippets</h2><section><section><h2>Uncited reference</h2>Ishikawa, 2018; Minamata Convention on Mercury, 2024; Pang et al., 2022; Schuster et al., 2018.</section></section><section><section><h2>Declaration of Competing Interest</h2>☒ The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.</section></section><section><section><h2>Acknowledgments</h2>We are grateful to Dr. Baohua Gu (retired) for all his efforts related to the special issue. This project has received funding from the European Union’s Horizon 2020 research and innovation MSCA-RISE program under grant agreement No. <span><span>101007962</span><svg aria-label=\"Opens in new window\" focusable=\"false\" height=\"20\" viewbox=\"0 0 8 8\"><path d=\"M1.12949 2.1072V1H7V6.85795H5.89111V2.90281L0.784057 8L0 7.21635L5.11902 2.1072H1.12949Z\"></path></svg></span> (merfish.eu) to MSB, Z.P-Z, and MH and the EU Marie Sklodowska-Curie GMOS-Train grant agreement no. 860497. We are grateful to the editorial staff at <em>Environmental Pollution</em> and to all the authors, readers, and peer reviewers of this SI for their kind</section></section>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"43 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143857853","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}
Antibiotic resistance genes (ARGs) and virulence factors (VFs) in soils represent a significant threat to ecological security and human health. The carbon-rich soil formed by manure fertilization provides an energy source for soil microbes. However, we still know little about how microbial-dominated carbon metabolism affects ARGs and VFs proliferation in soils subjected to long-term fertilization and irrigation practices in wheat-maize system. Here, we investigated soil microbial carbon metabolism, ARGs and VFs distribution, and microbial composition in soils under 9-year of different fertilization and irrigation managements during wheat growing period. Results showed that manure (M) increased total abundance of soil ARGs by 5.9%-8.0% and 2.1%-4.8% and VFs by 5.4%-7.5% and 2.0%-4.9% compared to no fertilizer (CK) and NPK fertilizer (C), respectively, regardless of irrigation. M enriched more number of ARGs and VFs types, and increased abundance of host microbes involved in carbon fixation and carbon degradation, such as Streptomyces, Lysobacter and Agromyces. M increased abundance of carbohydrate-active enzymes (CAZymes) and carbon cycle functional pathways, as well as microbial carbon metabolism capacity. Partial least squares path modeling (PLS-PM) and correlation analysis showed that microbial diversity, CAZymes, carbon cycle functional pathways (particularly carbon fixation and degradation) and microbial carbon metabolism capacity of microbial community had direct positive effects on the proliferation and spread of ARGs and VFs. In conclusion, our results highlight the importance of microbial mediated carbon metabolism in driving the dissemination of ARGs and VFs in soils under long-term manure application.
{"title":"Manure input propagated antibiotic resistance genes and virulence factors in soils by regulating microbial carbon metabolism","authors":"Taobing Yu, Yangkang Huang, Yicong Zhang, Shang Wang, Xiquan Wang, Ying Jiang, Huadong Zang, Zhaohai Zeng, Yadong Yang","doi":"10.1016/j.envpol.2025.126293","DOIUrl":"https://doi.org/10.1016/j.envpol.2025.126293","url":null,"abstract":"Antibiotic resistance genes (ARGs) and virulence factors (VFs) in soils represent a significant threat to ecological security and human health. The carbon-rich soil formed by manure fertilization provides an energy source for soil microbes. However, we still know little about how microbial-dominated carbon metabolism affects ARGs and VFs proliferation in soils subjected to long-term fertilization and irrigation practices in wheat-maize system. Here, we investigated soil microbial carbon metabolism, ARGs and VFs distribution, and microbial composition in soils under 9-year of different fertilization and irrigation managements during wheat growing period. Results showed that manure (M) increased total abundance of soil ARGs by 5.9%-8.0% and 2.1%-4.8% and VFs by 5.4%-7.5% and 2.0%-4.9% compared to no fertilizer (CK) and NPK fertilizer (C), respectively, regardless of irrigation. M enriched more number of ARGs and VFs types, and increased abundance of host microbes involved in carbon fixation and carbon degradation, such as <em>Streptomyces</em>, <em>Lysobacter</em> and <em>Agromyces</em>. M increased abundance of carbohydrate-active enzymes (CAZymes) and carbon cycle functional pathways, as well as microbial carbon metabolism capacity. Partial least squares path modeling (PLS-PM) and correlation analysis showed that microbial diversity, CAZymes, carbon cycle functional pathways (particularly carbon fixation and degradation) and microbial carbon metabolism capacity of microbial community had direct positive effects on the proliferation and spread of ARGs and VFs. In conclusion, our results highlight the importance of microbial mediated carbon metabolism in driving the dissemination of ARGs and VFs in soils under long-term manure application.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"25 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143858060","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}
Pub Date : 2025-04-21DOI: 10.1016/j.envpol.2025.126274
Shanshan Shao , Tianqin Xie , Lei Zhang , Hui Kong , Jie Fang , Ting Wang , Yu Zhang , Jiakuai Yu , Peng Zhu , Daomin Zhu
Recent evidence highlights the potential impact of outdoor artificial light at night (ALAN) on sleep, and later sleep timing may be a risk factor for executive dysfunction. Depression is commonly associated with executive dysfunction, which significantly compromise prognosis. However, it remains unclear whether sleep-wake phase mediate the effects of outdoor ALAN on executive function. We assessed whether sleep timing mediated the association between outdoor ALAN and executive function among depressed patients. Between 2017 and 2023, 798 inpatients with depression were enrolled from the Fourth People's Hospital of Hefei. The outdoor ALAN exposure of patients was estimated using satellite images. All participants were assessed for sleep conditions using the Pittsburgh Sleep Quality Index (PSQI) and for executive function using the Behavior Rating Inventory of Executive Function–Adult Version (BRIEF-A). We employed multifactor linear regression models to investigate the association between outdoor ALAN exposure and executive function, adjusted for potential confounders. Additionally, mediation models were utilized to explore the mediating role of sleep timing in this association. Our study found that greater ALAN exposure was significantly associated with higher executive function scores. The exposure of participants at 12 months prior to enrollment had the greatest effect, for each interquartile range (IQR 29.93 nW/cm2/sr) increase in outdoor ALAN exposure, the Global Executive Composite (GEC) scores increased by 6.12 (95 % confidence interval [CI]: 2.49, 9.74). Mediation analysis indicated that sleep midpoint significantly mediated the relationship between outdoor ALAN and executive function, with a mediated proportion of 22.39 %. The study suggested that outdoor ALAN exposure has adverse effects on executive function in depressed patients, and sleep-wake phase may mediate the association between outdoor ALAN exposure and executive function.
{"title":"Association between outdoor artificial light at night and executive function among depressive patients: the mediating effect of sleep timing","authors":"Shanshan Shao , Tianqin Xie , Lei Zhang , Hui Kong , Jie Fang , Ting Wang , Yu Zhang , Jiakuai Yu , Peng Zhu , Daomin Zhu","doi":"10.1016/j.envpol.2025.126274","DOIUrl":"10.1016/j.envpol.2025.126274","url":null,"abstract":"<div><div>Recent evidence highlights the potential impact of outdoor artificial light at night (ALAN) on sleep, and later sleep timing may be a risk factor for executive dysfunction. Depression is commonly associated with executive dysfunction, which significantly compromise prognosis. However, it remains unclear whether sleep-wake phase mediate the effects of outdoor ALAN on executive function. We assessed whether sleep timing mediated the association between outdoor ALAN and executive function among depressed patients. Between 2017 and 2023, 798 inpatients with depression were enrolled from the Fourth People's Hospital of Hefei. The outdoor ALAN exposure of patients was estimated using satellite images. All participants were assessed for sleep conditions using the Pittsburgh Sleep Quality Index (PSQI) and for executive function using the Behavior Rating Inventory of Executive Function–Adult Version (BRIEF-A). We employed multifactor linear regression models to investigate the association between outdoor ALAN exposure and executive function, adjusted for potential confounders. Additionally, mediation models were utilized to explore the mediating role of sleep timing in this association. Our study found that greater ALAN exposure was significantly associated with higher executive function scores. The exposure of participants at 12 months prior to enrollment had the greatest effect, for each interquartile range (IQR 29.93 nW/cm<sup>2</sup>/sr) increase in outdoor ALAN exposure, the Global Executive Composite (GEC) scores increased by 6.12 (95 % confidence interval [CI]: 2.49, 9.74). Mediation analysis indicated that sleep midpoint significantly mediated the relationship between outdoor ALAN and executive function, with a mediated proportion of 22.39 %. The study suggested that outdoor ALAN exposure has adverse effects on executive function in depressed patients, and sleep-wake phase may mediate the association between outdoor ALAN exposure and executive function.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"374 ","pages":"Article 126274"},"PeriodicalIF":7.6,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143853218","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}
Pub Date : 2025-04-21DOI: 10.1016/j.envpol.2025.126291
M.U.S. Maldeniya, Yang Liu, Bo Ma, Jiayue Yin, Shuyang Wen, Lihong Yuan, Peng Luo
Microplastics (MPs) and nanoplastics (NPs) are pervasive pollutants widely distributed across aquatic ecosystems. They have gained significant attention due to their potential adverse effects on marine organisms. Many marine species, particularly sea cucumbers, inadvertently ingest these plastic particles due to their non-selective feeding behavior. In this study we carried out a 14-day exposure experiment and investigated the effects of polyethylene MPs and NPs on gene expression, oxidative stress, immune condition and histology of a tropical sea cucumber, Holothuria leucospilota, a most abundant sea cucumbers species in the world. The results showed that MPs and NPs dramatically altered gene expression in discrepant profiles. NPs caused down-regulation of the majority of genes related to metabolic processes. In contrast to the enrichment of GO terms which related to regulation, differentiation and development after being exposed to MPs, metabolome-related GO terms were significantly enriched in NPs exposure. The toxicity mechanism associated with the NPs and MPs exposure involves the activation of the antioxidant defense system and the disruption of immune balance. Furthermore, histological destruction of the respiratory tree in NP and MP groups provided robust evidence for the unstable physiological condition. Our study deepens the comprehension of size-dependent plastic toxicity on marine benthic invertebrates, thereby posing a potential hazard to marine ecosystems.
{"title":"Exposure to microplastics and nanoplastics induces transcriptional and physiological alterations, and immune responses in sea cucumber, Holothuria leucospilota","authors":"M.U.S. Maldeniya, Yang Liu, Bo Ma, Jiayue Yin, Shuyang Wen, Lihong Yuan, Peng Luo","doi":"10.1016/j.envpol.2025.126291","DOIUrl":"https://doi.org/10.1016/j.envpol.2025.126291","url":null,"abstract":"Microplastics (MPs) and nanoplastics (NPs) are pervasive pollutants widely distributed across aquatic ecosystems. They have gained significant attention due to their potential adverse effects on marine organisms. Many marine species, particularly sea cucumbers, inadvertently ingest these plastic particles due to their non-selective feeding behavior. In this study we carried out a 14-day exposure experiment and investigated the effects of polyethylene MPs and NPs on gene expression, oxidative stress, immune condition and histology of a tropical sea cucumber, <em>Holothuria leucospilota</em>, a most abundant sea cucumbers species in the world. The results showed that MPs and NPs dramatically altered gene expression in discrepant profiles. NPs caused down-regulation of the majority of genes related to metabolic processes. In contrast to the enrichment of GO terms which related to regulation, differentiation and development after being exposed to MPs, metabolome-related GO terms were significantly enriched in NPs exposure. The toxicity mechanism associated with the NPs and MPs exposure involves the activation of the antioxidant defense system and the disruption of immune balance. Furthermore, histological destruction of the respiratory tree in NP and MP groups provided robust evidence for the unstable physiological condition. Our study deepens the comprehension of size-dependent plastic toxicity on marine benthic invertebrates, thereby posing a potential hazard to marine ecosystems.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"29 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143858069","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}
Pub Date : 2025-04-21DOI: 10.1016/j.envpol.2025.126294
Itzel Y. López-Pacheco, Georgia María González-Meza, Reyna Berenice González-González, Roberto Parra-Saldívar, Elda M. Melchor-Martínez
The microbiological load that wastewater may contain is an important factor to consider in wastewater treatment to avoid water bodies contamination and has taken on great relevance due to the possible presence of antibiotic-resistant bacteria. This study investigates the feasibility of bacteria control by phycoremediation treatment using Scenedesmus sp. in two types of wastewater (domestic and swine wastewater). It was determined the cell growth of microalgae culture, and the reduction of total coliforms and enterobacteria load throughout ten days of experiment. In addition, the removal of antibiotic-resistant bacteria was performed using five different antibiotics commonly used in clinical diagnosis: Ampicillin Tetracycline, Ciprofloxacin, Sulfamethoxazole, and Ceftriaxone. The results shown a significant decrease in total coliforms and enterobacteria in the phycoremediation process, it was removed up to 98% of total coliforms [ from (8.7 ± 2.31) × 104 to (1.6 ± 0.17) × 103 CFU mL -1] in swine wastewater and 99% in domestic wastewater [(3.6 ± 0.31) × 105 to (2 ± 0.05) × 103 CFU mL -1]. Significant reduction in the case of sulfamethoxazole-resistant bacteria by microalgae in swine wastewater from [(1.47 ± 0.05) × 105 to (5.3 ± 0.57) × 103 ] and domestic wastewater [(4.9 ± 0.15) × 104 to (2.9 ± 0.36) × 103]. These findings demonstrate the versatility and effectiveness of the phycoremediation system since the general microbial control to most specific of antibiotic-resistant bacteria in wastewater, demonstrating its great potential to reduce the risk of public health issues in urban and rural areas.
{"title":"Algae bioremediation of swine and domestic wastewater promotes a reduction of coliforms and antibiotic-resistant bacteria","authors":"Itzel Y. López-Pacheco, Georgia María González-Meza, Reyna Berenice González-González, Roberto Parra-Saldívar, Elda M. Melchor-Martínez","doi":"10.1016/j.envpol.2025.126294","DOIUrl":"https://doi.org/10.1016/j.envpol.2025.126294","url":null,"abstract":"The microbiological load that wastewater may contain is an important factor to consider in wastewater treatment to avoid water bodies contamination and has taken on great relevance due to the possible presence of antibiotic-resistant bacteria. This study investigates the feasibility of bacteria control by phycoremediation treatment using <em>Scenedesmus</em> sp. in two types of wastewater (domestic and swine wastewater). It was determined the cell growth of microalgae culture, and the reduction of total coliforms and enterobacteria load throughout ten days of experiment. In addition, the removal of antibiotic-resistant bacteria was performed using five different antibiotics commonly used in clinical diagnosis: Ampicillin Tetracycline, Ciprofloxacin, Sulfamethoxazole, and Ceftriaxone. The results shown a significant decrease in total coliforms and enterobacteria in the phycoremediation process, it was removed up to 98% of total coliforms [ from (8.7 ± 2.31) × 10<sup>4</sup> to (1.6 ± 0.17) × 10<sup>3</sup> CFU mL <sup>-1</sup>] in swine wastewater and 99% in domestic wastewater [(3.6 ± 0.31) × 10<sup>5</sup> to (2 ± 0.05) × 10<sup>3</sup> CFU mL <sup>-1</sup>]. Significant reduction in the case of sulfamethoxazole-resistant bacteria by microalgae in swine wastewater from [(1.47 ± 0.05) × 10<sup>5</sup> to (5.3 ± 0.57) × 10<sup>3</sup> ] and domestic wastewater [(4.9 ± 0.15) × 10<sup>4</sup> to (2.9 ± 0.36) × 10<sup>3</sup>]. These findings demonstrate the versatility and effectiveness of the phycoremediation system since the general microbial control to most specific of antibiotic-resistant bacteria in wastewater, demonstrating its great potential to reduce the risk of public health issues in urban and rural areas.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"43 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143858068","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}
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