Pub Date : 2025-02-19DOI: 10.1016/j.envpol.2025.125866
Martyna Grzegorzek, Katarzyna Wartalska, Szymon Szymczewski, Jakub Żywiec, Dawid Szpak, Bartosz Kaźmierczak
In the face of climate change, rainwater harvesting has become a valuable solution providing an alternative water source and helping mitigate the sewage system overload. Using rainwater necessitates ensuring that its quality is appropriate for its intended purpose. In industrial areas, the nature of the activities conducted poses a substantial risk of rainwater quality deterioration, particularly due to heavy metals (HMs) contamination. Within the article scope, the rainwater quality analysis from the Special Economic Zone (SEZ) in Lower Silesia (Poland) was examined. The research included analysis of physicochemical parameters, as well as cations, anions, and HMs concentrations in rainwater samples. The measurements were made in the certified laboratory between April 2022 and June 2023. The samples were taken from 5 representative points of the SEZ area: drains into the ditch and storage tanks. From analyzed anions and cations, Cl- (205 mg/L) and Ca2+ (69.6 mg/L) showed the highest concentration, respectively. Cu was the most abundant HMs (up to 0.049 mg/L). Cd and Cr were not detected at all. It has been shown that the most of the analyzed quality parameters complied with WHO guidelines. The detected contaminants mainly come from industrial activity (like incineration; vehicles, batteries, and electronic manufacturing or concrete production), as well as from materials coating buildings and pavements prone to release undesired components. Vehicle traffic, natural sources (e.g. weathering ions from soils) also was shown to contribute to rainwater quality. Tap water periodically used for washing the roads and pavements unintentionally transported to sampling points may contribute to Cl- and Ca2+ presence.
{"title":"Rainwater quality in Special Economic Zone (SEZ) in Poland","authors":"Martyna Grzegorzek, Katarzyna Wartalska, Szymon Szymczewski, Jakub Żywiec, Dawid Szpak, Bartosz Kaźmierczak","doi":"10.1016/j.envpol.2025.125866","DOIUrl":"https://doi.org/10.1016/j.envpol.2025.125866","url":null,"abstract":"In the face of climate change, rainwater harvesting has become a valuable solution providing an alternative water source and helping mitigate the sewage system overload. Using rainwater necessitates ensuring that its quality is appropriate for its intended purpose. In industrial areas, the nature of the activities conducted poses a substantial risk of rainwater quality deterioration, particularly due to heavy metals (HMs) contamination. Within the article scope, the rainwater quality analysis from the Special Economic Zone (SEZ) in Lower Silesia (Poland) was examined. The research included analysis of physicochemical parameters, as well as cations, anions, and HMs concentrations in rainwater samples. The measurements were made in the certified laboratory between April 2022 and June 2023. The samples were taken from 5 representative points of the SEZ area: drains into the ditch and storage tanks. From analyzed anions and cations, Cl<sup>-</sup> (205 mg/L) and Ca<sup>2+</sup> (69.6 mg/L) showed the highest concentration, respectively. Cu was the most abundant HMs (up to 0.049 mg/L). Cd and Cr were not detected at all. It has been shown that the most of the analyzed quality parameters complied with WHO guidelines. The detected contaminants mainly come from industrial activity (like incineration; vehicles, batteries, and electronic manufacturing or concrete production), as well as from materials coating buildings and pavements prone to release undesired components. Vehicle traffic, natural sources (e.g. weathering ions from soils) also was shown to contribute to rainwater quality. Tap water periodically used for washing the roads and pavements unintentionally transported to sampling points may contribute to Cl<sup>-</sup> and Ca<sup>2+</sup> presence.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"23 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143443764","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}
In this study, indoor air quality was assessed in a store belonging to one of Portugal's largest commercial retail groups. A variety of methodologies were used, including gravimetric analysis for particulate matter (PM), optical monitors for real-time PM measurements, gas sensors and analysers for CO2 and other gaseous pollutants, diffusion tubes for VOCs, and passive deposition for microorganisms. The average PM10 concentration indoors was 16.5 ± 3.87 μg/m3, well below the exposure limits set by various international organisations. A significant portion of indoor PM10 – 69% - was originated from outdoor sources. Outdoor PM10 concentrations were substantially higher, averaging 29.4 ± 14.6 μg/m3. Metal concentrations were also higher outdoors than indoors, and the associated cancer risk and hazard quotient were not exceeded, indicating favourable air quality conditions within the store. Among VOCs, α-pinene and tetrachloroethylene were detected in notable concentrations. α-Pinene likely originated from cleaning products and fragrances, while tetrachloroethylene was attributed to emissions from a dry-cleaning establishment located in the same building, but did not exceed protection thresholds. Microbial analysis showed low concentrations of both fungi and bacteria. However, fungal species with clinical and toxigenic potential were found. The most common fungal species were Trichoderma sp. and Penicillium sp., depending on the culture media. Overall, the clothing store demonstrated good air quality. However, to further reduce the impact of outdoor pollutants on indoor air quality, enhancements to the ventilation system are recommended. These improvements can help create a healthier indoor environment by filtering and managing the intake of external contaminants more effectively.
{"title":"Comprehensive analysis of particulate matter, gaseous pollutants, and microbiological contamination in a clothing store from an international chain in Europe","authors":"Leonardo Furst, Yago Cipoli, Nuria Galindo, Eduardo Yubero, Carla Viegas, Bianca Gomes, Renata Cervantes, Teresa Nunes, Manuel Feliciano, Célia Alves","doi":"10.1016/j.envpol.2025.125836","DOIUrl":"https://doi.org/10.1016/j.envpol.2025.125836","url":null,"abstract":"In this study, indoor air quality was assessed in a store belonging to one of Portugal's largest commercial retail groups. A variety of methodologies were used, including gravimetric analysis for particulate matter (PM), optical monitors for real-time PM measurements, gas sensors and analysers for CO<sub>2</sub> and other gaseous pollutants, diffusion tubes for VOCs, and passive deposition for microorganisms. The average PM<sub>10</sub> concentration indoors was 16.5 ± 3.87 μg/m<sup>3</sup>, well below the exposure limits set by various international organisations. A significant portion of indoor PM<sub>10</sub> – 69% - was originated from outdoor sources. Outdoor PM<sub>10</sub> concentrations were substantially higher, averaging 29.4 ± 14.6 μg/m<sup>3</sup>. Metal concentrations were also higher outdoors than indoors, and the associated cancer risk and hazard quotient were not exceeded, indicating favourable air quality conditions within the store. Among VOCs, α-pinene and tetrachloroethylene were detected in notable concentrations. α-Pinene likely originated from cleaning products and fragrances, while tetrachloroethylene was attributed to emissions from a dry-cleaning establishment located in the same building, but did not exceed protection thresholds. Microbial analysis showed low concentrations of both fungi and bacteria. However, fungal species with clinical and toxigenic potential were found. The most common fungal species were <em>Trichoderma</em> sp. and <em>Penicillium</em> sp., depending on the culture media. Overall, the clothing store demonstrated good air quality. However, to further reduce the impact of outdoor pollutants on indoor air quality, enhancements to the ventilation system are recommended. These improvements can help create a healthier indoor environment by filtering and managing the intake of external contaminants more effectively.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"48 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143443763","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}
Previous research has found a correlation between heavy metals and gut microbiota in humans. However, there are few population-based studies examining the impact of early life thallium (Tl) exposure on neonatal microbiome. 342 newborns were recruited from Hunan Children's Hospital and subsequently divided into three groups (low, medium, and high) based on the 25th and 75th percentiles of serum Tl concentration. Additionally, the relationship between Tl and gut microbiota was analyzed in subgroups (preterm or full-term neonates). The association between Tl and gut microbiota in neonates was analyzed by Redundancy analysis, Spearman correlation analysis and MaAsLin2. The detection rate of Tl in neonates was 100%, with the median concentration of 0.021 μg/L. In all neonates, we found significant differences in the Chao1 and ACE indices of α-diversity in gut microbiota, and the relative abundances of Bacteroidota and Bacteroidetes were significantly different among groups (p < 0.05). Following the covariate adjustment, Tl was negatively correlated with Gemmatimonadota (Coef = 0.265, p < 0.05) in preterm neonates. In full-term neonates, Tl exhibited a positive correlation with the relative abundance of Robinsoniella (Coef = 0.563, p = 0.009) and a negative correlation with that of Pseudomonas (Coef = - 0.592, p = 0.012). Tryptophan and renin-angiotensin system pathways might exert important roles in Tl exposure. This study indicated that Tl exposure was associated with changes in α-diversity and the composition of gut microbiota in neonates, with Gemmatimonadota being predominantly affected in preterm neonates and Robinsoniella and Pseudomonas in full-term neonates.
{"title":"Association of thallium exposure in early life with gut microbiota in neonates","authors":"Kunyan Zhao, Fei Yang, Mingyang Wu, Xiongfeng Pan, Shiting Xiang, Yan Tang, Fengmei Song, Yunlong Peng, Sha Wu, Yunhui Cao, Caixia Liu, Jun Qiu","doi":"10.1016/j.envpol.2025.125876","DOIUrl":"https://doi.org/10.1016/j.envpol.2025.125876","url":null,"abstract":"Previous research has found a correlation between heavy metals and gut microbiota in humans. However, there are few population-based studies examining the impact of early life thallium (Tl) exposure on neonatal microbiome. 342 newborns were recruited from Hunan Children's Hospital and subsequently divided into three groups (low, medium, and high) based on the 25th and 75th percentiles of serum Tl concentration. Additionally, the relationship between Tl and gut microbiota was analyzed in subgroups (preterm or full-term neonates). The association between Tl and gut microbiota in neonates was analyzed by Redundancy analysis, Spearman correlation analysis and MaAsLin2. The detection rate of Tl in neonates was 100%, with the median concentration of 0.021 μg/L. In all neonates, we found significant differences in the Chao1 and ACE indices of α-diversity in gut microbiota, and the relative abundances of <em>Bacteroidota</em> and <em>Bacteroidetes</em> were significantly different among groups (<em>p</em> < 0.05). Following the covariate adjustment, Tl was negatively correlated with <em>Gemmatimonadota</em> (Coef = 0.265, <em>p</em> < 0.05) in preterm neonates. In full-term neonates, Tl exhibited a positive correlation with the relative abundance of <em>Robinsoniella</em> (Coef = 0.563, <em>p</em> = 0.009) and a negative correlation with that of <em>Pseudomonas</em> (Coef = - 0.592, <em>p</em> = 0.012). Tryptophan and renin-angiotensin system pathways might exert important roles in Tl exposure. This study indicated that Tl exposure was associated with changes in α-diversity and the composition of gut microbiota in neonates, with <em>Gemmatimonadota</em> being predominantly affected in preterm neonates and <em>Robinsoniella</em> and <em>Pseudomonas</em> in full-term neonates.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"84 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143435151","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 : 2025-02-18DOI: 10.1016/j.envpol.2025.125885
Jialing Luo, Suling Wei, Yufeng Xie, Junlang Qiu, Xiaolin Niu, Na Luo, Yanpeng Gao, Yuemeng Ji, Taicheng An
The widespread use of chloramination as a disinfection strategy has raised concerns about the formation of harmful disinfection byproducts (DBPs), highlighting the urgent need to elucidate the underlying transformation mechanisms. In this study, we integrated non-targeted screening, organic synthesis, and quantum chemical calculations to investigate the chloramination mechanism of preservative methylparaben and assess the toxicological impacts of the resulting DBPs. In addition to chlorinated products, two novel transformation products, the coupled (C-MeP) and hydroxylated (OH-MeP) products were identified, and the structure of C-MeP was confirmed through synthesized standards. Quantum chemical calculations reveal that the formation of C-MeP is driven by electron transfer, generating radicals that promote C-C bond coupling, while OH-MeP is likely formed by an addition-hydrolysis pathway. The formation of chlorinated products occurs through electrophilic substitution, facilitated by water molecules, and may undergo coupling to form chlorinated products with a biphenyl structure. Toxicity assessments indicate that coupled products exhibit greater negative effects on the gastrointestinal and cardiovascular system compared to parent pollutant. These findings highlight the need to expand the focus of chloramination disinfection beyond traditional chlorinated DBPs, emphasizing the ecological and health implications of novel products including coupled byproducts.
{"title":"Unveiling Novel Chloramination Byproducts of Parabens: Electrophilic Coupling Mechanisms and their Elevated Health Risks","authors":"Jialing Luo, Suling Wei, Yufeng Xie, Junlang Qiu, Xiaolin Niu, Na Luo, Yanpeng Gao, Yuemeng Ji, Taicheng An","doi":"10.1016/j.envpol.2025.125885","DOIUrl":"https://doi.org/10.1016/j.envpol.2025.125885","url":null,"abstract":"The widespread use of chloramination as a disinfection strategy has raised concerns about the formation of harmful disinfection byproducts (DBPs), highlighting the urgent need to elucidate the underlying transformation mechanisms. In this study, we integrated non-targeted screening, organic synthesis, and quantum chemical calculations to investigate the chloramination mechanism of preservative methylparaben and assess the toxicological impacts of the resulting DBPs. In addition to chlorinated products, two novel transformation products, the coupled (C-MeP) and hydroxylated (OH-MeP) products were identified, and the structure of C-MeP was confirmed through synthesized standards. Quantum chemical calculations reveal that the formation of C-MeP is driven by electron transfer, generating radicals that promote C-C bond coupling, while OH-MeP is likely formed by an addition-hydrolysis pathway. The formation of chlorinated products occurs through electrophilic substitution, facilitated by water molecules, and may undergo coupling to form chlorinated products with a biphenyl structure. Toxicity assessments indicate that coupled products exhibit greater negative effects on the gastrointestinal and cardiovascular system compared to parent pollutant. These findings highlight the need to expand the focus of chloramination disinfection beyond traditional chlorinated DBPs, emphasizing the ecological and health implications of novel products including coupled byproducts.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"7 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143435152","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 : 2025-02-18DOI: 10.1016/j.envpol.2025.125867
Brittany G. Perrotta, Karen A. Kidd, Amy M. Marcarelli, Gordon Paterson, David M. Walters
The macroinvertebrate microbiome controls various aspects of the host’s physiology, from regulation of environmental contaminants to reproductive output. Aquatic insects provide critical nutritional subsidies linking aquatic and riparian food webs while simultaneously serving as a contaminant pathway for riparian insectivores in polluted ecosystems. Previous studies have characterized the transport and transfer of contaminants from aquatic to riparian ecosystems through insect metamorphosis, but both contaminant exposure and metamorphosis are energetically intensive processes that may cause host microbiomes to undergo radical transformation in structure and function, potentially affecting the host’s physiology. We collected arthropods from three sites within Torch Lake, a historical copper mine in the Keweenaw Peninsula, Michigan, USA, and three sites within a nearby reference lake. Our objectives were to: 1) characterize the variation in microbiome communities and predicted metagenomic functions with legacy copper mining activity across space, among host types and family-level host taxonomy, 2) characterize how insect metamorphosis alters the microbiome community, including the degree of endosymbiotic infection, and predicted metagenomic function. We field-collected organisms, extracted their DNA, and sequenced the 16S region of the rRNA gene to characterize microbiome communities, then predicted metagenomic function. Site, lake, and host taxonomy affected the host microbiome community composition. Copper exposure increased the abundance of xenobiotic and lipid metabolism pathways in the Araneidae spider microbiome. Metamorphosis reduced the alpha diversity, altered the community composition, and predicted metagenomic function. We observed a bioconcentration of endosymbiotic bacteria in adult insects, especially holometabolous insects. Through metamorphosis, we observed a transition in function from xenobiotic degradation pathways to carbohydrate metabolism. Overall, contaminant exposure alters the microbiome composition in aquatic insects and riparian spiders and alters the function of the microbiome across the aquatic-riparian interface. Furthermore, metamorphosis is a critical element in shaping the aquatic insect microbiome across its life history.
{"title":"Effects of chronic metal exposure and metamorphosis on the microbiomes of larval and adult insects, and riparian spiders through the aquatic-riparian food web.","authors":"Brittany G. Perrotta, Karen A. Kidd, Amy M. Marcarelli, Gordon Paterson, David M. Walters","doi":"10.1016/j.envpol.2025.125867","DOIUrl":"https://doi.org/10.1016/j.envpol.2025.125867","url":null,"abstract":"The macroinvertebrate microbiome controls various aspects of the host’s physiology, from regulation of environmental contaminants to reproductive output. Aquatic insects provide critical nutritional subsidies linking aquatic and riparian food webs while simultaneously serving as a contaminant pathway for riparian insectivores in polluted ecosystems. Previous studies have characterized the transport and transfer of contaminants from aquatic to riparian ecosystems through insect metamorphosis, but both contaminant exposure and metamorphosis are energetically intensive processes that may cause host microbiomes to undergo radical transformation in structure and function, potentially affecting the host’s physiology. We collected arthropods from three sites within Torch Lake, a historical copper mine in the Keweenaw Peninsula, Michigan, USA, and three sites within a nearby reference lake. Our objectives were to: 1) characterize the variation in microbiome communities and predicted metagenomic functions with legacy copper mining activity across space, among host types and family-level host taxonomy, 2) characterize how insect metamorphosis alters the microbiome community, including the degree of endosymbiotic infection, and predicted metagenomic function. We field-collected organisms, extracted their DNA, and sequenced the 16S region of the rRNA gene to characterize microbiome communities, then predicted metagenomic function. Site, lake, and host taxonomy affected the host microbiome community composition. Copper exposure increased the abundance of xenobiotic and lipid metabolism pathways in the Araneidae spider microbiome. Metamorphosis reduced the alpha diversity, altered the community composition, and predicted metagenomic function. We observed a bioconcentration of endosymbiotic bacteria in adult insects, especially holometabolous insects. Through metamorphosis, we observed a transition in function from xenobiotic degradation pathways to carbohydrate metabolism. Overall, contaminant exposure alters the microbiome composition in aquatic insects and riparian spiders and alters the function of the microbiome across the aquatic-riparian interface. Furthermore, metamorphosis is a critical element in shaping the aquatic insect microbiome across its life history.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"14 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143443765","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 : 2025-02-17DOI: 10.1016/j.envpol.2025.125871
Guoxin Lan, Xiaohang Huang, Tongqing Li, Yingjie Huang, Yang Liao, Qiushi Zheng, Qin Zhao, Yue Yu, Junjie Lin
Farmland soil is a major sink for microplastics (MPs). Despite recognized potential impacts on soil ecosystems, comprehensive assessments of MPs' effects on carbon (C), nitrogen (N), and phosphorus (P) cycling in agricultural soils are limited. Data from 102 peer-reviewed studies were analyzed to elucidate the effects of MPs exposure on the C, N, and P cycles in soil. Results showed increased concentrations of soil organic carbon (SOC), dissolved organic carbon, microbial biomass carbon, and microbial biomass nitrogen, accompanied by elevated emissions of carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) after MPs introduction. A random forest model revealed that soil C, N, and P cycles are driven by MPs characteristics (biodegradability, size, concentration), soil properties (initial pH, SOC, total N, clay content), and experimental conditions (incubation period, soil moisture). Complex interactions between MPs and soil C, N, and P were illustrated, with increased CO2, CH4, and N2O emissions due to C mineralization and enhanced denitrification rates caused by MPs. These negative effects imply a need for strengthened management of C, N, and P cycles in agricultural soil to reduce farmland ecosystems' contributions to greenhouse gas emissions.
{"title":"Effect of microplastics on carbon, nitrogen and phosphorus cycle in farmland soil: A meta-analysis","authors":"Guoxin Lan, Xiaohang Huang, Tongqing Li, Yingjie Huang, Yang Liao, Qiushi Zheng, Qin Zhao, Yue Yu, Junjie Lin","doi":"10.1016/j.envpol.2025.125871","DOIUrl":"https://doi.org/10.1016/j.envpol.2025.125871","url":null,"abstract":"Farmland soil is a major sink for microplastics (MPs). Despite recognized potential impacts on soil ecosystems, comprehensive assessments of MPs' effects on carbon (C), nitrogen (N), and phosphorus (P) cycling in agricultural soils are limited. Data from 102 peer-reviewed studies were analyzed to elucidate the effects of MPs exposure on the C, N, and P cycles in soil. Results showed increased concentrations of soil organic carbon (SOC), dissolved organic carbon, microbial biomass carbon, and microbial biomass nitrogen, accompanied by elevated emissions of carbon dioxide (CO<sub>2</sub>), methane (CH<sub>4</sub>), and nitrous oxide (N<sub>2</sub>O) after MPs introduction. A random forest model revealed that soil C, N, and P cycles are driven by MPs characteristics (biodegradability, size, concentration), soil properties (initial pH, SOC, total N, clay content), and experimental conditions (incubation period, soil moisture). Complex interactions between MPs and soil C, N, and P were illustrated, with increased CO<sub>2</sub>, CH<sub>4</sub>, and N<sub>2</sub>O emissions due to C mineralization and enhanced denitrification rates caused by MPs. These negative effects imply a need for strengthened management of C, N, and P cycles in agricultural soil to reduce farmland ecosystems' contributions to greenhouse gas emissions.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"35 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143435209","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}
Oil pollution in intertidal sediments is a serious environmental issue. The anoxic environment of the sediment hinders the decomposition of hydrophobic organic pollutants. Conventional bioremediation methods, such as the sole addition of electron acceptors, have struggled to achieve high efficiencies because of the low solubility of oil pollutants. Herein, the combination of anaerobically-synthesized rhamnolipids and electron acceptor was evaluated for the bioremediation of oil-polluted sediments. Meanwhile, the key genes involved in CNPS cycling were detected to understand the biogeochemical processes and the complex interactions between microbial metabolism, nutrient availability, and pollutant degradation. After the bioremediation, the combination of rhamnolipids and sulfate significantly enhanced the removal of polycyclic aromatic hydrocarbons (74.8±1.4%). On day 270, the polyphenol oxidase activity of rhamnolipids and sulfate with rhamnolipids treatments reached 20870.1±1988.7 mg/(kg·h) and 22373.8±970.1 mg/(kg·h), respectively, which was significantly higher (P<0.05) than other treatments. The sulfate consumption rate in the treatment with both sulfate and rhamnolipids consistently exceeded that of treatment with sulfate alone. Moreover, on day 60, the abundances of functional genes mediating sulfur oxidation (yedZ and soxY) were significantly higher in the combined treatment than in the sulfate group. The results revealed that the addition of rhamnolipids favored the growth of microorganisms and promoted S cycling, and the combination with sulfate dramatically enhanced the removal of polycyclic aromatic hydrocarbons. This study demonstrated that the combination of sulfate and rhamnolipids exhibited great potential on the anaerobic bioremediation of oil-contaminated intertidal zones.
{"title":"Enhanced anaerobic bioremediation of oil-contaminated intertidal sediment with a combination of anaerobically-synthesized rhamnolipids and sulfate","authors":"Lijia Jiang, Qian Hao, Shichen Li, Shidi Jin, Edidiong Okokon Atakpa, Yinghui Ma, Chunfang Zhang, Haitao Ding","doi":"10.1016/j.envpol.2025.125873","DOIUrl":"https://doi.org/10.1016/j.envpol.2025.125873","url":null,"abstract":"Oil pollution in intertidal sediments is a serious environmental issue. The anoxic environment of the sediment hinders the decomposition of hydrophobic organic pollutants. Conventional bioremediation methods, such as the sole addition of electron acceptors, have struggled to achieve high efficiencies because of the low solubility of oil pollutants. Herein, the combination of anaerobically-synthesized rhamnolipids and electron acceptor was evaluated for the bioremediation of oil-polluted sediments. Meanwhile, the key genes involved in CNPS cycling were detected to understand the biogeochemical processes and the complex interactions between microbial metabolism, nutrient availability, and pollutant degradation. After the bioremediation, the combination of rhamnolipids and sulfate significantly enhanced the removal of polycyclic aromatic hydrocarbons (74.8±1.4%). On day 270, the polyphenol oxidase activity of rhamnolipids and sulfate with rhamnolipids treatments reached 20870.1±1988.7 mg/(kg·h) and 22373.8±970.1 mg/(kg·h), respectively, which was significantly higher (<em>P</em><0.05) than other treatments. The sulfate consumption rate in the treatment with both sulfate and rhamnolipids consistently exceeded that of treatment with sulfate alone. Moreover, on day 60, the abundances of functional genes mediating sulfur oxidation (<em>yedZ</em> and <em>soxY</em>) were significantly higher in the combined treatment than in the sulfate group. The results revealed that the addition of rhamnolipids favored the growth of microorganisms and promoted S cycling, and the combination with sulfate dramatically enhanced the removal of polycyclic aromatic hydrocarbons. This study demonstrated that the combination of sulfate and rhamnolipids exhibited great potential on the anaerobic bioremediation of oil-contaminated intertidal zones.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"1 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143427141","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}
This study aims to explore the association between residential green space exposure and sarcopenia, and the role of air pollutants in the association. This study utilized data from the UK Biobank. Residential green space and natural environment were assessed by the percentage of land covered by greenness within 300 m and 1000 m buffers. Logistic regression models were used to explore the associations of green space and natural environment with possible sarcopenia and sarcopenia. We explored the mediating role of air pollution mixtures in the above associations. Interactions between green space and air pollution were assessed on the multiplicative and the additive scales. A total of 430790 participants were included in this study, and 23637 (5.5%) possible sarcopenia and 769 (0.2%) sarcopenia cases were identified. Each 10% increment of green space and natural environment coverage was associated with lower risks of possible sarcopenia (odds ratio (OR): 0.968, 95% confidence interval (CI): 0.961,0.976 in green space; OR: 0.968, 95%CI: 0.962,0.975 in natural environment) and sarcopenia (OR: 0.958, 95%CI: 0.920,0.999 in green space; OR: 0.961, 95%CI: 0.926,0.998 in natural environment). Population-attributable fraction analyses revealed that lower green space and natural environment levels could attribute to 8.8% and 8.5% of possible sarcopenia, 17.0% and 15.4% of sarcopenia. The associations of green space and natural environment with possible sarcopenia status could be partially explained by reducing air pollution. We also identified a significant multiplicative interaction between air pollution mixtures and green space on possible sarcopenia. In summary, higher green space and natural environment levels were associated with lower risks of possible sarcopenia and sarcopenia. Both modification and mediation roles of air pollution were found in the association between green space and possible sarcopenia. Therefore, expanding green spaces and reducing air pollution are crucial strategies for mitigating the risk of sarcopenia and promoting healthy aging.
{"title":"Association of residential green space with risk of sarcopenia and the role of air pollution: evidence from UK Biobank","authors":"Xiaoyu Zhao, Jinqi Wang, Zhiyuan Wu, Haibin Li, Zhiwei Li, Yueruijing Liu, Xia Li, Xiuhua Guo, Lixin Tao","doi":"10.1016/j.envpol.2025.125857","DOIUrl":"https://doi.org/10.1016/j.envpol.2025.125857","url":null,"abstract":"This study aims to explore the association between residential green space exposure and sarcopenia, and the role of air pollutants in the association. This study utilized data from the UK Biobank. Residential green space and natural environment were assessed by the percentage of land covered by greenness within 300 m and 1000 m buffers. Logistic regression models were used to explore the associations of green space and natural environment with possible sarcopenia and sarcopenia. We explored the mediating role of air pollution mixtures in the above associations. Interactions between green space and air pollution were assessed on the multiplicative and the additive scales. A total of 430790 participants were included in this study, and 23637 (5.5%) possible sarcopenia and 769 (0.2%) sarcopenia cases were identified. Each 10% increment of green space and natural environment coverage was associated with lower risks of possible sarcopenia (odds ratio (OR): 0.968, 95% confidence interval (CI): 0.961,0.976 in green space; OR: 0.968, 95%CI: 0.962,0.975 in natural environment) and sarcopenia (OR: 0.958, 95%CI: 0.920,0.999 in green space; OR: 0.961, 95%CI: 0.926,0.998 in natural environment). Population-attributable fraction analyses revealed that lower green space and natural environment levels could attribute to 8.8% and 8.5% of possible sarcopenia, 17.0% and 15.4% of sarcopenia. The associations of green space and natural environment with possible sarcopenia status could be partially explained by reducing air pollution. We also identified a significant multiplicative interaction between air pollution mixtures and green space on possible sarcopenia. In summary, higher green space and natural environment levels were associated with lower risks of possible sarcopenia and sarcopenia. Both modification and mediation roles of air pollution were found in the association between green space and possible sarcopenia. Therefore, expanding green spaces and reducing air pollution are crucial strategies for mitigating the risk of sarcopenia and promoting healthy aging.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"29 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143417550","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 : 2025-02-15DOI: 10.1016/j.envpol.2025.125868
Wenhao Wang , Siwei Deng , Jiang Yu , Yi Wu , Wenjuan Feng , Qin Fan , Rui Zhou , Peirou Li , Wei Deng , Zhi Huang , Jie Yu , Weiwei Zhu
Thallium-related industrial materials (TIMs) from the mining and smelting of lead-zinc ores may lead to thallium (Tl) contamination in the soil. Building upon the soil column experiments, this study employed the diffusive gradients in thin-films (DGT) technique and the DGT-induced fluxes in soils (DIFS) model to understand the migration and distribution characteristics of Tl from lead-zinc industrial raw materials to soil, as well as its adsorption-desorption kinetics in soil. The results indicated that Tl concentrations in the leachate from fly ash (0.3 μg L−1) and purified slag (0.42 μg L−1) significantly exceeded groundwater safety thresholds (0.1 μg L−1). This significantly increased the content of acid-exchangeable and reducible Tl in the soil, particularly in the purified slag-soil system, where the proportions of acid-exchangeable and reducible Tl in the topsoil increased by 20% and 37%, respectively, compared to the control. Further, the in-situ distribution of labile Tl was observed with a precision of 1 cm through the DGT, and the labile Tl in soils contaminated by purified slag was the highest (up to 635 μg L−1). The DIFS model analyzed the adsorption-desorption dynamics of Tl at the soil water-solid micro-interface. The derived response time (Tc) and desorption rate constant (K-1) indicated that purified slag enriched the labile Tl reservoir in the soil (Kd: 143 cm3 g−1). Tl was rapidly resupplied from the soil solid phase to the water phase (K-1: 1.23 × 10−2 s−1), maintaining Tl levels in the pore water phase over a short period (Tc: 0.128 s). Our study systematically evaluated the migration and distribution characteristics of soil Tl contamination, providing a scientific basis for the environmental management.
{"title":"Migration and distribution of thallium related with lead-zinc smelting enterprises from raw materials to soil: In-situ insight using diffusive gradients in thin-films","authors":"Wenhao Wang , Siwei Deng , Jiang Yu , Yi Wu , Wenjuan Feng , Qin Fan , Rui Zhou , Peirou Li , Wei Deng , Zhi Huang , Jie Yu , Weiwei Zhu","doi":"10.1016/j.envpol.2025.125868","DOIUrl":"10.1016/j.envpol.2025.125868","url":null,"abstract":"<div><div>Thallium-related industrial materials (TIMs) from the mining and smelting of lead-zinc ores may lead to thallium (Tl) contamination in the soil. Building upon the soil column experiments, this study employed the diffusive gradients in thin-films (DGT) technique and the DGT-induced fluxes in soils (DIFS) model to understand the migration and distribution characteristics of Tl from lead-zinc industrial raw materials to soil, as well as its adsorption-desorption kinetics in soil. The results indicated that Tl concentrations in the leachate from fly ash (0.3 μg L<sup>−1</sup>) and purified slag (0.42 μg L<sup>−1</sup>) significantly exceeded groundwater safety thresholds (0.1 μg L<sup>−1</sup>). This significantly increased the content of acid-exchangeable and reducible Tl in the soil, particularly in the purified slag-soil system, where the proportions of acid-exchangeable and reducible Tl in the topsoil increased by 20% and 37%, respectively, compared to the control. Further, the in-situ distribution of labile Tl was observed with a precision of 1 cm through the DGT, and the labile Tl in soils contaminated by purified slag was the highest (up to 635 μg L<sup>−1</sup>). The DIFS model analyzed the adsorption-desorption dynamics of Tl at the soil water-solid micro-interface. The derived response time (<em>T</em><sub><em>c</em></sub>) and desorption rate constant (<em>K</em><sub><em>-1</em></sub>) indicated that purified slag enriched the labile Tl reservoir in the soil (<em>K</em><sub><em>d</em></sub>: 143 cm<sup>3</sup> g<sup>−1</sup>). Tl was rapidly resupplied from the soil solid phase to the water phase (<em>K</em><sub><em>-1</em></sub>: 1.23 × 10<sup>−2</sup> s<sup>−1</sup>), maintaining Tl levels in the pore water phase over a short period (<em>T</em><sub><em>c</em></sub>: 0.128 s). Our study systematically evaluated the migration and distribution characteristics of soil Tl contamination, providing a scientific basis for the environmental management.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"369 ","pages":"Article 125868"},"PeriodicalIF":7.6,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143417508","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 : 2025-02-15DOI: 10.1016/j.envpol.2025.125870
Jinming Zheng, Haiyang Song, Jun Ke, Mei Chen, Feng Chen, Zhiying Zhan
Previous studies have reported the association between daily temperature and morbidity at city level, but small-area association of hourly temperature and acute morbidity is limited. We aimed to assess the association between hourly temperature and acute morbidity at the smallest administrative units (communities), and to explore the sources of regional heterogeneity. This case time series design was conducted using 145,678 non-accidental ambulance dispatch records in 328 communities in Fuzhou, China (2019-2024). Small-area associations between hourly temperatures and ambulance dispatches were assessed by quasi-Poisson regression with distributed lag nonlinear model. Multivariate meta-regressions used to explore modification of natural and social features. Unstandardized and standardized attributable number calculated for disease burden. We observed a U-shaped exposure-response curves of hourly temperature and risk of ambulance dispatches, with significantly adverse cold and heat effects referent at minimum risk temperature of 21°C. The male and the elderly were more susceptible to non-optimal temperature. The unstandardized attributable numbers of non-accident ambulance dispatches due to cold and heat were 1,389 (95%eCI: 875, 1,748) and 590 (95%eCI: 319, 811), with corresponding standardized attribution number of 36 (95%eCI: 23, 46) and 15 (95%eCI: 8, 21). The standardized attributable number due to cold and heat were greater in the downtown and areas of higher proportions of the elderly and the higher population density, and lower NDVI level. High greenness mitigated heat-related adverse effects and temperature-related disease burden. The finding support the optimization of urbanized environment and public health strategies to reduce temperature-related disease burden under global warming.
以往的研究报告了城市一级的日气温与发病率之间的关系，但小区域的小时气温与急性发病率之间的关系却很有限。我们旨在评估最小行政单位（社区）的每小时气温与急性发病率之间的关系，并探索区域异质性的来源。这项病例时间序列设计使用了中国福州市328个社区的145678份非事故救护派遣记录（2019-2024年）。采用分布式滞后非线性模型的准泊松回归评估了每小时气温与救护车出动之间的小区域关联。多变量元回归用于探索自然和社会特征的影响。计算疾病负担的非标准化和标准化归因人数。我们观察到每小时气温与救护车出动风险的暴露-反应曲线呈 U 型，最低风险温度为 21°C，冷热效应明显。男性和老年人更容易受到非最佳温度的影响。因寒冷和炎热导致的非事故救护车派遣的非标准化归因人数分别为1,389（95%eCI：875, 1,748）和590（95%eCI：319, 811），相应的标准化归因人数分别为36（95%eCI：23, 46）和15（95%eCI：8, 21）。在市中心、老年人比例较高、人口密度较高以及 NDVI 水平较低的地区，寒冷和炎热造成的标准化归因人数较多。高绿化率减轻了与热有关的不利影响和与温度有关的疾病负担。研究结果支持优化城市化环境和公共卫生策略，以减轻全球变暖下与温度相关的疾病负担。
{"title":"Small-Area Association of Hourly Ambient Temperature and Acute Morbidity","authors":"Jinming Zheng, Haiyang Song, Jun Ke, Mei Chen, Feng Chen, Zhiying Zhan","doi":"10.1016/j.envpol.2025.125870","DOIUrl":"https://doi.org/10.1016/j.envpol.2025.125870","url":null,"abstract":"Previous studies have reported the association between daily temperature and morbidity at city level, but small-area association of hourly temperature and acute morbidity is limited. We aimed to assess the association between hourly temperature and acute morbidity at the smallest administrative units (communities), and to explore the sources of regional heterogeneity. This case time series design was conducted using 145,678 non-accidental ambulance dispatch records in 328 communities in Fuzhou, China (2019-2024). Small-area associations between hourly temperatures and ambulance dispatches were assessed by quasi-Poisson regression with distributed lag nonlinear model. Multivariate meta-regressions used to explore modification of natural and social features. Unstandardized and standardized attributable number calculated for disease burden. We observed a U-shaped exposure-response curves of hourly temperature and risk of ambulance dispatches, with significantly adverse cold and heat effects referent at minimum risk temperature of 21°C. The male and the elderly were more susceptible to non-optimal temperature. The unstandardized attributable numbers of non-accident ambulance dispatches due to cold and heat were 1,389 (95%eCI: 875, 1,748) and 590 (95%eCI: 319, 811), with corresponding standardized attribution number of 36 (95%eCI: 23, 46) and 15 (95%eCI: 8, 21). The standardized attributable number due to cold and heat were greater in the downtown and areas of higher proportions of the elderly and the higher population density, and lower NDVI level. High greenness mitigated heat-related adverse effects and temperature-related disease burden. The finding support the optimization of urbanized environment and public health strategies to reduce temperature-related disease burden under global warming.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"10 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143417500","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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