Environmental Sciences Europe最新文献

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Modeling and predicting land use and land cover changes using remote sensing in tropical coastal ecosystems of southern Peru 利用遥感模拟和预测秘鲁南部热带沿海生态系统的土地利用和土地覆盖变化
IF 6 3区 环境科学与生态学
Environmental Sciences Europe Pub Date : 2025-08-07 DOI: 10.1186/s12302-025-01181-y
Ellen Delgado, Elgar Barboza, Nilton B. Rojas-Briceño, Alexander Cotrina-Sanchez, Armando Valdés-Velásquez, Rocío López de la Lama, Camila Llerena-Cayo, Santiago de la Puente
{"title":"Modeling and predicting land use and land cover changes using remote sensing in tropical coastal ecosystems of southern Peru","authors":"Ellen Delgado,&nbsp;Elgar Barboza,&nbsp;Nilton B. Rojas-Briceño,&nbsp;Alexander Cotrina-Sanchez,&nbsp;Armando Valdés-Velásquez,&nbsp;Rocío López de la Lama,&nbsp;Camila Llerena-Cayo,&nbsp;Santiago de la Puente","doi":"10.1186/s12302-025-01181-y","DOIUrl":"10.1186/s12302-025-01181-y","url":null,"abstract":"<div><p>Understanding the spatial impacts of human activities on coastal marine ecosystems is fundamental to manage the dynamic changes in land use that affect these natural spaces. In this study, we assessed land-use and land-cover (LULC) changes from 1990 to 2020 and their projection to 2030 in the Ica region (Peru). Through the integration of geographic information systems (GIS) and remote sensing techniques, LULC changes were analyzed. The kappa index reported an accuracy of the LULC maps above 87% in the analysis period. In addition, the quantitative analysis revealed that in 1990, 2000, 2010 and 2020, cultivated areas increased by 48.9, 53.2, 60.11 and 75.72% in influence zones A1, A2, A3 and A4, respectively, while urban development increased by 2.84, 4.81, 4.82 and 7.82% ha in the same zones. Likewise, the loss and gain analysis of land cover by period revealed that, in 1990, 2000, 2010 and 2020, cultivated areas increased by 48.9, 53.2, 60.11 and 75.72% in the zones of influence A1, A2, A3 and A4, respectively, while urban development increased by 2.84, 4.81, 4.82 and 7.82% ha in the same zones. In addition, during the period 2010–2020, the rate of transformation reached 53.1 ha/year towards urban uses in the coastal zone (A3) and 981.2 ha/year towards crops in zone A4. By 2030, urban expansion along the coast and major roads is expected to significantly reduce natural cover. Importantly, these results underscore the greater relevance of our integrated approach, which is applicable to others like it.</p></div>","PeriodicalId":546,"journal":{"name":"Environmental Sciences Europe","volume":"37 1","pages":""},"PeriodicalIF":6.0,"publicationDate":"2025-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s12302-025-01181-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145162926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Unveiling the metabolic roles: how lead exposure elevates uric acid levels 揭示代谢作用:铅暴露如何提高尿酸水平
IF 6 3区 环境科学与生态学
Environmental Sciences Europe Pub Date : 2025-08-04 DOI: 10.1186/s12302-025-01186-7
Wanlu Liu, Yaotang Deng, Guoliang Li, Zhiqiang Zhao, Xinyu Zhu, Jiazhen Zhou, Mushi Yi, Simin Xian, Yue Hu, Youyi Wu, Qiaoyuan Yang, Lili Liu, Yansen Bai
{"title":"Unveiling the metabolic roles: how lead exposure elevates uric acid levels","authors":"Wanlu Liu,&nbsp;Yaotang Deng,&nbsp;Guoliang Li,&nbsp;Zhiqiang Zhao,&nbsp;Xinyu Zhu,&nbsp;Jiazhen Zhou,&nbsp;Mushi Yi,&nbsp;Simin Xian,&nbsp;Yue Hu,&nbsp;Youyi Wu,&nbsp;Qiaoyuan Yang,&nbsp;Lili Liu,&nbsp;Yansen Bai","doi":"10.1186/s12302-025-01186-7","DOIUrl":"10.1186/s12302-025-01186-7","url":null,"abstract":"<div><p>Chronic lead (Pb) exposure remains a global public health concern throughout the world. Particularly the populations in industrial or polluted environments tend to have an increased risk of metabolic imbalance in uric acid (UA). However, the metabolic profile alteration under Pb exposure-induced UA elevation is largely unknown. This study included 505 participants occupationally exposed to Pb, and levels of blood Pb, UA, and estimated glomerular filtration rate (eGFR) were assessed. Untargeted metabolomics was used to profile serum metabolome among a representative sample of 90 workers. To elucidate the effects of Pb exposure on UA level and metabolic alterations, as well as to investigate the mediating roles of metabolites and eGFR, generalized additive models alongside parallel and serial mediation analyses were employed. We found that blood Pb levels were related to high UA levels and low eGFR, respectively. The 10 Pb exposure-related metabolites were mainly enriched in amino acid metabolism and lipid metabolism, and this metabolite mixture as a whole (present as a weighted quantile sum index) had positive and negative dose–response relationships with UA [β (95%CI) = 0.49 (0.28, 0.70), <i>P</i> &lt; 0.001] and eGFR [β (95%CI) = − 2.54 (− 2.30, − 2.78), <i>P</i> &lt; 0.001], respectively. Metabolites and eGFR played no parallel mediation roles but played serial mediating effects on Pb exposure-UA associations (Pb → wqs index → eGFR → UA, mediation proportion = 40.7%). In particular, a significant indirect path involving mediators in a causal chain of 3-Methoxytyrosine to eGFR (Pb → 3-Methoxytyrosine → eGFR → UA, mediation proportion = 22.0%) was observed. Our findings reveal a causal chain, metabolic alteration, and subsequent kidney function decline involved in the physiologies and pathogenesis of Pb exposure-induced UA elevation, indicating several key metabolites could serve as a target for effective prevention and treatment.</p></div>","PeriodicalId":546,"journal":{"name":"Environmental Sciences Europe","volume":"37 1","pages":""},"PeriodicalIF":6.0,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s12302-025-01186-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145161994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Asymmetric evaluations of scientific evidence indicating harm compared to evidence indicating an absence of harm in regulatory appraisals 对表明危害的科学证据的不对称评价与监管评估中表明无危害的证据的不对称评价
IF 6 3区 环境科学与生态学
Environmental Sciences Europe Pub Date : 2025-08-04 DOI: 10.1186/s12302-025-01176-9
Patrick van Zwanenberg, Erik Millstone, Alice Livingston Ortolani
{"title":"Asymmetric evaluations of scientific evidence indicating harm compared to evidence indicating an absence of harm in regulatory appraisals","authors":"Patrick van Zwanenberg,&nbsp;Erik Millstone,&nbsp;Alice Livingston Ortolani","doi":"10.1186/s12302-025-01176-9","DOIUrl":"10.1186/s12302-025-01176-9","url":null,"abstract":"<div><p>This paper asks whether, when assessing the safety of regulated products, the standards of scrutiny and evaluation deployed by regulatory officials and scientific advisors differ for evidence indicating that a product might be harmful compared to evidence indicating an absence of harm. Four cases from the field of food chemical regulation are analysed for which safety appraisals were conducted by European and US regulatory institutions between the late 1980s and the 2010s. The cases concern selected areas of the possible toxicity of ethylene bisdithiocarbamate fungicides, a genetically modified variety of Bt maize, the artificial sweetener Aspartame, and the herbicide Glyphosate. We find that evidence that those products were unlikely to be harmful was routinely accepted by regulatory bodies as reliable, relevant, and sufficient to support judgements of safety, even when that evidence was incomplete, equivocal or the underlying studies were inadequate or flawed or both. By contrast, evidence indicating possible or actual hazards and risks was subjected to far more critical scrutiny to try to discern any possible grounds for discounting it, including reasons that were deemed not to be a problem when they characterised evidence indicative of a lack of harm, or when those reasons were entirely speculative or were contradicted by available evidence. We identify and characterise several different types of evaluative asymmetry and argue that all are antithetical to the effective protection of public and environmental health. Several also violate indispensable scientific requirements for making valid inferences and reaching well-founded conclusions; that is, they are scientifically defective. Their deployment misleads many policy decision makers and most of the public. Their effect is to conceal the scope for diminishing possible harm. We outline hypotheses as to why asymmetric patterns of scrutiny and evaluation appear to be a relatively widespread phenomena across different regulatory jurisdictions and time periods.</p></div>","PeriodicalId":546,"journal":{"name":"Environmental Sciences Europe","volume":"37 1","pages":""},"PeriodicalIF":6.0,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s12302-025-01176-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145161995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Triple bottom line and environmental sustainability: evolution of global ESG research—a bibliometric analysis 三重底线与环境可持续性:全球ESG研究的演变——文献计量学分析
IF 6 3区 环境科学与生态学
Environmental Sciences Europe Pub Date : 2025-08-02 DOI: 10.1186/s12302-025-01184-9
Pallavi Mishra, Vijay Kumar Pandey
{"title":"Triple bottom line and environmental sustainability: evolution of global ESG research—a bibliometric analysis","authors":"Pallavi Mishra,&nbsp;Vijay Kumar Pandey","doi":"10.1186/s12302-025-01184-9","DOIUrl":"10.1186/s12302-025-01184-9","url":null,"abstract":"<div><p>The evolution of Environmental, Social, and Governance (ESG) research represents a critical development in corporate sustainability practices, particularly in relation to the Triple Bottom Line perspective and specific United Nations Sustainable Development Goals (SDGs). This study examines this evolution through a comprehensive bibliometric analysis, focusing specifically on SDGs 7 (Affordable and Clean Energy), 8 (Decent Work and Economic Growth), and 12 (Responsible Consumption and Production), which are central to understanding the intersection of environmental sustainability and corporate performance. Through systematic analysis of the Scopus database from 2015 to March 2025, we examined 14,435 peer-reviewed articles using VOSviewer and Biblioshiny software packages. Following Callon’s density-centrality methodology, our analysis reveals four distinct thematic categories: motor themes (circular economy and sustainability assessment), basic themes (SDGs and corporate governance), Niche Themes (economic growth and emissions), and emerging themes (ESG integration). While developed economies (USA, UK, and EU) demonstrate the highest publication volumes, significant growth is observed in emerging regions, particularly in Southeast Asia, Latin America, and Africa, with distinct regional research priorities emerging post-2020. Publication patterns show exponential growth, peaking in 2023–2024, with notable acceleration in circular economy initiatives, alternative energy solutions, and green economy developments. Our findings highlight the growing integration of environmental performance metrics with financial outcomes and identify critical research gaps in ESG standardization, emerging market implementation, and technological innovation. The study projects continued growth in digital transformation, post-COVID resilience strategies, and sustainable business model innovation while acknowledging limitations in database coverage and language restrictions. These insights provide a comprehensive roadmap for future research directions in ESG implementation and sustainable business practices. </p></div>","PeriodicalId":546,"journal":{"name":"Environmental Sciences Europe","volume":"37 1","pages":""},"PeriodicalIF":6.0,"publicationDate":"2025-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s12302-025-01184-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145160589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Integration of fuzzy logic and geographic weighted regression modeling for enhanced groundwater potential mapping using remote sensing and GIS 基于模糊逻辑和地理加权回归模型的遥感和GIS强化地下水潜力制图
IF 6 3区 环境科学与生态学
Environmental Sciences Europe Pub Date : 2025-08-01 DOI: 10.1186/s12302-025-01182-x
Junguang Gao, Amnah A. Alasgah, Imran Ahmad, Faten Nahas, Mithas Ahmad Dar, Martina Zelenakova, Milashu Sisay, Getanew Sewnet Zewdu
{"title":"Integration of fuzzy logic and geographic weighted regression modeling for enhanced groundwater potential mapping using remote sensing and GIS","authors":"Junguang Gao,&nbsp;Amnah A. Alasgah,&nbsp;Imran Ahmad,&nbsp;Faten Nahas,&nbsp;Mithas Ahmad Dar,&nbsp;Martina Zelenakova,&nbsp;Milashu Sisay,&nbsp;Getanew Sewnet Zewdu","doi":"10.1186/s12302-025-01182-x","DOIUrl":"10.1186/s12302-025-01182-x","url":null,"abstract":"<div><p>Groundwater resource management is critical in regions with limited surface water availability. Traditional mapping methods often face challenges in addressing spatial heterogeneity and data uncertainties, creating a need for more advanced approaches. This study addresses the research gap by introducing an innovative methodology combining fuzzy logic and Geographically Weighted Regression (GWR) to enhance groundwater potential mapping. Fuzzy logic addresses uncertainties through membership functions, while GWR captures spatial variations via localized regression coefficients. Utilizing conditioned data sets of geological factors, land cover, and topographic indices, the proposed method produced high-accuracy groundwater potential maps validated through metrics, such as local <i>R</i><sup>2</sup> values and Moran’s Index. Key findings reveal significant spatial variability in groundwater potential, with southern regions showing enhanced recharge capacity due to favorable geological conditions. The integration of fuzzy logic and GWR demonstrated robust predictive performance and the ability to account for local spatial patterns. These results provide valuable insights for hydrological readers, guiding sustainable groundwater management practices and targeted water resource interventions in diverse environmental settings.</p></div>","PeriodicalId":546,"journal":{"name":"Environmental Sciences Europe","volume":"37 1","pages":""},"PeriodicalIF":6.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s12302-025-01182-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145160631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Digestate from Spanish wholesale food markets: valorization as biofertilizer and analysis of environmental impacts compared to synthetic fertilizers 来自西班牙批发食品市场的消化物:作为生物肥料的价值和与合成肥料相比的环境影响分析
IF 6 3区 环境科学与生态学
Environmental Sciences Europe Pub Date : 2025-08-01 DOI: 10.1186/s12302-025-01183-w
Carmen Martín-Sanz-Garrido, Marta Revuelta-Aramburu, Carlos Morales-Polo, Ana María Santos-Montes
{"title":"Digestate from Spanish wholesale food markets: valorization as biofertilizer and analysis of environmental impacts compared to synthetic fertilizers","authors":"Carmen Martín-Sanz-Garrido,&nbsp;Marta Revuelta-Aramburu,&nbsp;Carlos Morales-Polo,&nbsp;Ana María Santos-Montes","doi":"10.1186/s12302-025-01183-w","DOIUrl":"10.1186/s12302-025-01183-w","url":null,"abstract":"<div><p>This study presents a comprehensive environmental impact assessment of biofertilizers from digestate in Spain’s 23 most extensive food markets using life cycle analysis. Eleven impact categories were evaluated. Results revealed significant variations in impacts across food markets, primarily due to differences in infrastructure sizing and energy self-sufficiency. Markets with appropriately sized anaerobic digestion facilities and energy self-sufficiency demonstrated significant environmental benefits, resulting in emission savings in 9 of the 11 impact categories assessed, except acidification and eutrophication. As a representative case of the markets with properly sized anaerobic digestion infrastructure and energy self-sufficiency, Market G as a representative market achieved up to 86% reduction in abiotic depletion and over 75% in toxicity categories. However, four food markets with either oversized or undersized infrastructure exhibited lower benefits, with Market A showing no advantages over synthetic fertilizers. In addition, the acidification and eutrophication categories posed challenges for all markets due to ammonia emissions during composting; in these impact categories, the values of biofertilizers are 5 to 8 times higher, depending on the market. When comparing unit and aggregate values (single scores), 19 out of 23 markets offer environmentally sustainable biofertilizers, resulting in an average emission savings of 55%. In conclusion, biofertilizers present a more sustainable alternative to synthetic fertilizers in most markets, contingent on adequate infrastructure and energy self-sufficiency. Future studies should focus on optimizing facility sizing and evaluating the influence of waste composition, as both factors significantly affect the environmental performance of digestate-based biofertilizers. This research highlights the potential of biofertilizers to contribute to more sustainable agricultural practices when the production process is well-optimized.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":546,"journal":{"name":"Environmental Sciences Europe","volume":"37 1","pages":""},"PeriodicalIF":6.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s12302-025-01183-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145160552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Are historical conditions reference conditions? Revising the modeled riverine nutrient input into the German North Sea and Baltic Sea around 1880 历史条件是参考条件吗?修正1880年前后进入德国北海和波罗的海的河流养分输入模型
IF 6 3区 环境科学与生态学
Environmental Sciences Europe Pub Date : 2025-07-31 DOI: 10.1186/s12302-025-01185-8
Andreas Gericke, Karoline Morling, Ingo Haag, Micha Gebel, Julia Krumm, Georges Bruns, Justus E. E. van Beusekom, Stephan Fuchs, Wera Leujak
{"title":"Are historical conditions reference conditions? Revising the modeled riverine nutrient input into the German North Sea and Baltic Sea around 1880","authors":"Andreas Gericke,&nbsp;Karoline Morling,&nbsp;Ingo Haag,&nbsp;Micha Gebel,&nbsp;Julia Krumm,&nbsp;Georges Bruns,&nbsp;Justus E. E. van Beusekom,&nbsp;Stephan Fuchs,&nbsp;Wera Leujak","doi":"10.1186/s12302-025-01185-8","DOIUrl":"10.1186/s12302-025-01185-8","url":null,"abstract":"<div><h3>Background</h3><p>The German legislation sets two targets for riverine nitrogen concentrations in North Sea and Baltic Sea tributaries as well as river type-specific phosphorus thresholds. The current target for the Baltic Sea as well as the thresholds for the good status were derived from modeled riverine and atmospheric inputs around 1880. However, the calculated nitrogen balance differed between the model applications for the German North Sea and Baltic Sea. Existing nitrogen targets for North Sea tributaries are likely insufficient for environmental objectives according to recent model and data analyses. We used a harmonized approach to model nutrient inputs to the German Seas around 1880 and discuss these outcomes in the context of stricter requirements needed for ecological objectives in the North Sea.</p><h3>Results</h3><p>For river basins entering the German North Sea and Baltic Sea, we modeled emissions, concentrations, and loads of total nitrogen and total phosphorus around 1880. The historical riverine inputs to the North Sea were 180 kt N yr<sup>−1</sup> and 4.20 kt P yr<sup>−1</sup> and to the Baltic Sea 22 kt N yr<sup>−1</sup> and 0.45 kt P yr<sup>−1</sup>, respectively. These loads corresponded to annual mean concentrations of 1.36 mg N l<sup>−1</sup> and 0.032 mg P l<sup>−1</sup> (North Sea) as well as 1.11 mg N l<sup>−1</sup> and 0.022 mg P l<sup>−1</sup> (Baltic Sea). Modeled nitrogen concentrations at river mouths were lower than the previous German model results but exceeded published reference concentrations. They were, however, partly in agreement with ecology-based concentrations for major North Sea tributaries based on published reduction needs.</p><h3>Conclusions</h3><p>The modeled nutrient concentrations at river mouths confirm the inconsistency of German model applications with regional applications. For the North Sea, they support a more stringent basin-wide nitrogen target and thresholds for the good status of coastal and marine waters. As the historical conditions exceeded reference conditions, the offset of 50% to the historical concentration for the good ecological status should be revised for both sea basins. According to ecology-based target concentrations, only + 30% may be acceptable for North Sea tributaries, corresponding to 1.8 mg N l<sup>−1</sup>. Any revision of the German legislation should acknowledge the inherent uncertainties.</p></div>","PeriodicalId":546,"journal":{"name":"Environmental Sciences Europe","volume":"37 1","pages":""},"PeriodicalIF":6.0,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s12302-025-01185-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145171220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Environmental trafficking of superbug carbapenem-resistant Klebsiella pneumoniae and its silent spread in an urban population: a sewage-based study 超级细菌耐碳青霉烯肺炎克雷伯菌的环境贩运及其在城市人群中的无声传播:一项基于污水的研究
IF 6 3区 环境科学与生态学
Environmental Sciences Europe Pub Date : 2025-07-30 DOI: 10.1186/s12302-025-01187-6
Saubhagini Sahoo, Anshuman Sahu, Rajesh Kumar Sahoo, Mahendra Gaur, Debadutta Bhanjadeo, Enketeswara Subudhi
{"title":"Environmental trafficking of superbug carbapenem-resistant Klebsiella pneumoniae and its silent spread in an urban population: a sewage-based study","authors":"Saubhagini Sahoo,&nbsp;Anshuman Sahu,&nbsp;Rajesh Kumar Sahoo,&nbsp;Mahendra Gaur,&nbsp;Debadutta Bhanjadeo,&nbsp;Enketeswara Subudhi","doi":"10.1186/s12302-025-01187-6","DOIUrl":"10.1186/s12302-025-01187-6","url":null,"abstract":"<div><h3>Background</h3><p>Antibiotic resistance (AR) is an imminent threat to developing nations where poor sanitation and untreated wastewater remain major risk factors. In this study, Cuttack’s raw municipal sewage effluent (RMSE) was leveraged to investigate the potential escape of carbapenem-resistant <i>Klebsiella pneumoniae</i> (CRKP) into the environment and its prevalence in the urban population. Their genetic relatedness with clinical CRKP isolates was evaluated using repetitive element sequence-based PCR (rep-PCR) and (GTG)<sub>5</sub>-PCR.</p><h3>Results</h3><p>Eleven (<i>n</i> = 11) CRKP isolates, exhibiting variable resistance to 15 antibiotic classes, were recovered from RMSE. These isolates harboured several clinically relevant carbapenemase genes, including <i>bla</i><sub>KPC</sub> (18.18%), <i>bla</i><sub>IMP</sub> (18.18%), <i>bla</i><sub>NDM</sub> (9.09%) with <i>bla</i><sub>VIM</sub> (54.54%) and <i>bla</i><sub>OXA-48-like</sub> (54.54%) being the most prevalent. In contrast, the clinical CRKP isolates (<i>n</i> = 14) were predominantly characterized by <i>bla</i><sub>NDM</sub> (78.5%). The co-carriage of <i>bla</i><sub>VIM</sub> + <i>bla</i><sub>OXA-48-like</sub> was the most frequent combination in RMSE-derived isolates (45.45%), while clinical isolates were dominated by <i>bla</i><sub>NDM</sub> + <i>bla</i><sub>OXA-48-like</sub> (42.85%). Notably, many clinical isolates were marked by the confluence of extensively drug-resistant (XDR) (50%) phenotype and hypervirulent markers including <i>iucA</i>, <i>iroB</i>, <i>rmpA</i>, <i>rmpA2</i> and <i>peg-344</i>. The clinical and environmental CRKP isolates clustered into two separate clades and differed significantly in their Multiple Antibiotic Resistance (MAR) Index (<i>p</i> &lt; 0.00078), Minimum Inhibitory Concentration (MIC) of meropenem (<i>p</i> &lt; 0.028) and imipenem (<i>p</i> &lt; 0.019), number of β-lactamase genes (<i>p</i> &lt; 0.0022), siderophore genes (<i>p</i> &lt; 0.00039), and porin genes (<i>p</i> &lt; 0.0001), as determined by the Mann–Whitney U-test. An XDR strain of the international high-risk clone ST395 harbouring a chromosomally encoded <i>bla</i><sub>NDM-5</sub> gene was also recovered from the RMSE.</p><h3>Conclusion</h3><p>These findings underscore the need for tailored strategies to mitigate community-associated and hospital-acquired CRKP infections, respectively, while identifying Cuttack’s RMSE as an escape gate for CRKP into the environment. The alarming presence of this superbug in RMSE further reflects its prevalence and ongoing cryptic transmission in Cuttack’s urban population. Our study advocates for the integration of sewage surveillance as a robust, cost-effective approach to monitor the environmental spread and current trends of pathogens in human populations.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":546,"journal":{"name":"Environmental Sciences Europe","volume":"37 1","pages":""},"PeriodicalIF":6.0,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s12302-025-01187-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145170730","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Personal exposure to particulate matter-bound toxic elements and ovarian reserve hormone levels 个人接触颗粒物质结合的有毒元素和卵巢储备激素水平
IF 6 3区 环境科学与生态学
Environmental Sciences Europe Pub Date : 2025-07-29 DOI: 10.1186/s12302-025-01114-9
Tian Wu, Baogang Wang, Zhenli Cui
{"title":"Personal exposure to particulate matter-bound toxic elements and ovarian reserve hormone levels","authors":"Tian Wu,&nbsp;Baogang Wang,&nbsp;Zhenli Cui","doi":"10.1186/s12302-025-01114-9","DOIUrl":"10.1186/s12302-025-01114-9","url":null,"abstract":"<div><p>Environmental pollutant exposure has been linked to a wide range of negative health outcomes. However, the evidence on such association with ovarian reverse hormone levels is still scarce with no study on the association of exposure to particulate matter-bound-potentially toxic elements (PM-bound PTEs) and these hormones. This study was designed to evaluate the relationship between concentrations of PM-bound PTEs and levels of anti-Müllerian hormone (AMH) and follicle-stimulating hormone (FSH). This cohort study involved 2350 women aged 25–40 years. We used personal sampling to assess exposure to PM<sub>2.5</sub> and measure PM-bound PTEs. The relationship between level of PM-bound PTEs and FSH and AMH levels was investigated using multiple linear regression (MLR) models adjusted for relevant covariates. The analysis of combined exposure involved the use of quantile g-computation (g-comp) and Bayesian Kernel Machine Regression (BKMR), to evaluate the mixture effect of PM-bound PTEs on ovarian reserve hormone. The potential modifying effects of education, job, and environmental tobacco exposure were also evaluated. We found that Al has a marginally positive association with FSH levels. For AMH levels, Cr, As, Cd, Hg, and Pb all have significant negative associations in both crude and adjusted models, while other PM-bound PTEs showed no significant associations. G-comp analysis indicates a significant negative association between combined PM-bound PTEs exposure and AMH levels (<i>β</i>-coefficient = − 1.98, 95% confidence interval (CI) − 3.34, − 0.61, <i>P</i> &lt; 0.01), but no significant impact on FSH levels (<i>β</i>-coefficient = 1.58, 95% CI − 1.81, 4.98, <i>P</i> = 0.36). Individual PM-bound PTEs impacts show Ni and Mn with the most negative effects on FSH. For AMH, Cd and Cr have the most negative effects. The BKMR analysis found that higher exposure to PM-bound PTEs was associated with increased FSH levels and decreased AMH levels, indicating potential disruption of ovarian reserve. Overall, our study suggested a negative impact of exposure to PM-bound PTEs on AMH levels. Further longitudinal studies are needed to establish causality and understand long-term effects.</p></div>","PeriodicalId":546,"journal":{"name":"Environmental Sciences Europe","volume":"37 1","pages":""},"PeriodicalIF":6.0,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s12302-025-01114-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145170507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
The Arab world at a crossroads: assessing future risks under changing climate 处在十字路口的阿拉伯世界:评估气候变化下的未来风险
IF 6 3区 环境科学与生态学
Environmental Sciences Europe Pub Date : 2025-07-28 DOI: 10.1186/s12302-025-01162-1
Rasha M. Abou Samra, R. R. Ali
{"title":"The Arab world at a crossroads: assessing future risks under changing climate","authors":"Rasha M. Abou Samra,&nbsp;R. R. Ali","doi":"10.1186/s12302-025-01162-1","DOIUrl":"10.1186/s12302-025-01162-1","url":null,"abstract":"<div><p>The Arab world is experiencing temperature increases at nearly twice the global average, presenting significant challenges to human livability, water availability, and food security. Concurrently, high inflation rates, increasing population density (PD), and political instability exert pressure on achieving sustainable development goals (SDGs) in the region. This study examines the effects of temperature and precipitation changes across the Arab world under 1.5 °C (2021–2040), 2.0 °C (2041–2060), and 3.0 °C (2061–2080) warming scenarios relative to the baseline period 1995–2014 using the Coupled Model Intercomparison Project Phase 6 (CMIP6). The Mann–Kendall (MK) trend test and Sen’s slope estimator were applied to evaluate the statistical significance and magnitude of temperature and precipitation trends across the Arab world. It also explores projected shifts in aridity and risk levels impacting land use/land cover (LULC), PD, water scarcity, and food insecurity. The aridity index (AI) is calculated using precipitation and potential evapotranspiration (PET) data sets. A risk classification framework assesses climate change impacts based on temperature and precipitation variations. The water stress index (WSI) and food insecurity index (FISI) predict climate change impacts under different risk levels on water scarcity and food security. A pairwise comparison matrix (PCM) determines the weight criteria for water stress, food insecurity, risk levels, and PD changes. The projected water stress and food insecurity levels across the Arab countries are estimated using a weighted sum (WS) model. Findings indicate a projected increase in temperature, with significant variations across Arab countries and seasons. Precipitation trends are complex, with increases in some regions and decreases in others. For example, winter precipitation is expected to decline in North African countries such as Algeria, Tunisia, and Egypt by 5.80–28.61% under 1.5 and 3.0 °C scenarios, while summer precipitation may increase in the Arabian Peninsula by 21.14–133.34%. Hyperarid and arid regions are likely to expand, while semiarid and dry sub-humid areas diminish. Closed forests and croplands, particularly in Sudan, Syria, Iraq, Saudi Arabia, and Jordan, are expected to be most impacted, underscoring the need for adaptive conservation strategies. The WSI indicates that regions such as Iraq, Morocco, Palestine, and Lebanon may transition from high to extremely high water stress under extreme climate conditions. Djibouti, Sudan, Iraq, Yemen, Syria, Somalia, Libya, and Palestine face very high food insecurity risks, emphasizing persistent vulnerabilities. These findings underscore the urgent need for promoting national planning with comprehensive adaptive climatic strategies across the Arab world.</p></div>","PeriodicalId":546,"journal":{"name":"Environmental Sciences Europe","volume":"37 1","pages":""},"PeriodicalIF":6.0,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s12302-025-01162-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145171124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
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