Environmental Science and Ecotechnology最新文献_第4页

Utilizing network optimization to mitigate rising greenspace exposure inequalities in Chinese cities from 2000 to 2050 利用网络优化缓解2000 - 2050年中国城市绿地暴露不平等加剧

IF 14.3 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Science and Ecotechnology

Pub Date : 2025-11-01 Epub Date: 2025-11-08 DOI: 10.1016/j.ese.2025.100633

Rundong Feng , Bin Chen , Shenghe Liu , Fuyuan Wang , Kaiyong Wang , Bojie Fu

Urban greenspaces enhance human well-being and promote sustainable development in rapidly urbanizing regions by delivering vital ecosystem services, including cooling, air purification, and recreation. In China, where cities accommodate a large share of the population amid persistent environmental pressures, disparities in greenspace exposure pose a major obstacle to equitable access; these disparities arise from geographic, climatic, socioeconomic, and landscape factors. Although awareness of such inequalities is growing, their long-term trajectories, demographic and city-scale patterns, and viable spatial optimization approaches remain largely unexplored. Here we show that greenspace exposure inequality across 246 Chinese cities increased by 25 % from 2000 to 2020 and is projected to rise further by 12.2–15.7 % by 2050 under middle-of-the-road and fossil-fueled development scenarios, disproportionately affecting older, less-educated women and megacity residents. Geodetector and random forest analyses reveal that this rise results from interactions among greenspace coverage, population density, and patch connectivity, which explain 83.9 % of the inequality. A network-based optimization approach that improves patch connectivity—without expanding total greenspace—can reduce disparities by 10.3–20.8 %, with greater efficacy in high-inequality cities and among vulnerable populations. Our results highlight how precise landscape interventions can advance social equity in greenspace access, supporting Sustainable Development Goal 11 for inclusive, resilient urban environments.

城市绿地通过提供重要的生态系统服务，包括降温、空气净化和娱乐，提高了人类福祉，促进了快速城市化地区的可持续发展。在中国，在持续的环境压力下，城市容纳了很大一部分人口，绿地暴露的差异对公平获取构成了主要障碍；这些差异是由地理、气候、社会经济和景观因素造成的。尽管人们对这种不平等现象的认识日益增强，但其长期轨迹、人口和城市规模的模式以及可行的空间优化方法在很大程度上仍未得到探索。研究表明，从2000年到2020年，246个中国城市的绿地暴露不平等增加了25%，预计到2050年，在中等道路和化石燃料发展情景下，绿地暴露不平等将进一步增加12.2 - 15.7%，对老年人、受教育程度较低的妇女和特大城市居民的影响尤为严重。地理探测器和随机森林分析表明，这种上升是绿地覆盖率、人口密度和斑块连通性之间的相互作用的结果，它们解释了83.9%的不平等。一种基于网络的优化方法，在不扩大总绿地面积的情况下，提高斑块连通性，可以将差距缩小10.3 - 20.8%，在不平等程度高的城市和弱势群体中效果更佳。我们的研究结果强调了精确的景观干预如何促进绿色空间准入方面的社会公平，支持可持续发展目标11中关于包容性、弹性城市环境的目标。

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引用次数: 0

Tracking reservoir warming in a changing climate: A 31-year study from Czechia 在气候变化中跟踪水库变暖：捷克的一项31年研究

IF 14.3 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Science and Ecotechnology

Pub Date : 2025-11-01 Epub Date: 2025-10-27 DOI: 10.1016/j.ese.2025.100631

Petr Znachor , Dušan Kosour , Luděk Rederer , Václav Koza , Vojtěch Kolář , Jiří Nedoma

Freshwater reservoirs are critical for water management but face increasing impacts from climate change, which alters their thermal regimes and affects ecosystem functions globally. In temperate regions, surface water temperatures have risen at rates often surpassing those of air temperature, driven by atmospheric warming, hydrological processes, and reservoir morphometry. However, long-term studies on reservoir-specific thermal responses, particularly short-term variability, remain scarce. An important question is how environmental drivers influence both long-term warming trends and daily thermal fluctuations in managed water bodies. Here we show that over 31 years (1991–2021), surface water temperatures in 35 Czech reservoirs increased by an average of 0.59 °C per decade, with air temperature, altitude, and retention time as primary predictors of mean temperatures. A novel corrected metric for day-to-day variability (DTDV) revealed that inflow rate, depth, and retention time strongly influence short-term fluctuations, and DTDV trends positively correlated with warming rates, indicating linked drivers of thermal reorganization. Seasonal patterns showed strongest warming in April, with an anomaly of minimal change in May, likely tied to regional climatic shifts. These findings elucidate climate-driven thermal dynamics in reservoirs, highlighting the interaction of climatic and local factors. By combining statistical modeling with process-based indicators, this study informs adaptive strategies to mitigate impacts on water quality, stratification, and biodiversity under changing climates.

淡水水库对水资源管理至关重要，但气候变化的影响越来越大，气候变化改变了淡水水库的热状态，影响了全球生态系统的功能。在温带地区，受大气变暖、水文过程和水库形态测量的影响，地表水温度的上升速度往往超过气温的上升速度。然而，关于储层特定热响应的长期研究，特别是短期变化，仍然很少。一个重要的问题是环境驱动因素如何影响管理水体的长期变暖趋势和每日热波动。研究表明，在31年（1991-2021年）期间，捷克35个水库的地表水温度平均每十年增加0.59°C，气温、海拔和滞留时间是平均温度的主要预测因子。一种新的修正日变率（DTDV）指标显示，入流速率、深度和滞留时间对短期波动有强烈影响，DTDV趋势与升温速率正相关，表明热重组的相关驱动因素。季节模式显示，4月份的变暖最强烈，5月份的异常变化最小，这可能与区域气候变化有关。这些发现阐明了气候驱动的储层热动力学，强调了气候和当地因素的相互作用。通过将统计模型与基于过程的指标相结合，本研究提供了适应策略，以减轻气候变化对水质、分层和生物多样性的影响。

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引用次数: 0

Hydrogen excess drives metabolic reprogramming and viral dynamics in syngas-converting microbiomes 氢过量驱动合成气转化微生物组的代谢重编程和病毒动力学

IF 14.3 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Science and Ecotechnology

Pub Date : 2025-11-01 Epub Date: 2025-12-03 DOI: 10.1016/j.ese.2025.100637

Gabriele Ghiotto, Luca Francescato, Maria Agustina Biancalani, Laura Treu, Stefano Campanaro

Microbial communities drive essential bioprocesses, including the conversion of synthesis gas into biomethane, a sustainable energy source that supports circular carbon economies. In anaerobic environments, specialized consortia of bacteria and archaea facilitate syngas methanation through syntrophic interactions, where hydrogenotrophic methanogens play a central role in reducing carbon dioxide and monoxide with hydrogen. However, imbalances in gas ratios, particularly excess hydrogen, can disrupt these interactions and impair overall efficiency. Yet, the molecular mechanisms underlying microbial responses to such imbalances remain poorly understood. Here we show that hydrogen excess triggers profound metabolic and viral remodeling in a thermophilic anaerobic microbiome, leading to reduced methane yields and ecological instability. This reprogramming involves transcriptional downregulation of methanogenesis genes in the dominant archaeon Methanothermobacter thermautotrophicus, coupled with upregulation of CRISPR-Cas and restriction-modification systems that correlate with diminished activity of an associated phage, indicating activated host defenses against viral threats. Concurrently, bacterial species such as those from Tepidanaerobacteraceae enhance carbon fixation via the Wood–Ljungdahl pathway, serving as electron sinks to mitigate redox imbalance. These adaptive responses highlight the microbiome's resilience mechanisms under stress, revealing viruses as both stressors and selective forces in syntrophic systems. Such insights advance our understanding of microbiome dynamics in bioconversion processes and guide the engineering of more stable microbial consortia for optimized syngas-to-methane conversion amid variable feedstocks.

微生物群落推动重要的生物过程，包括将合成气转化为生物甲烷，这是一种支持循环碳经济的可持续能源。在厌氧环境中，细菌和古细菌的特殊联合体通过共生相互作用促进合成气甲烷化，其中氢营养化产甲烷菌在用氢还原二氧化碳和一氧化碳方面发挥核心作用。然而，气体比例的不平衡，特别是过量的氢，会破坏这些相互作用，损害整体效率。然而，微生物对这种失衡反应的分子机制仍然知之甚少。在这里，我们发现氢过量会引发嗜热厌氧微生物群的深刻代谢和病毒重塑，导致甲烷产量减少和生态不稳定。这种重编程涉及优势古菌热自养产甲烷菌中产甲烷基因的转录下调，加上与相关噬菌体活性降低相关的CRISPR-Cas和限制性修饰系统的上调，表明激活了宿主对病毒威胁的防御。同时，来自Tepidanaerobacteraceae的细菌通过Wood-Ljungdahl途径增强碳固定，作为电子汇减轻氧化还原失衡。这些适应性反应突出了微生物组在压力下的恢复机制，揭示了病毒在共生系统中既是压力源又是选择力。这些见解促进了我们对生物转化过程中微生物组动力学的理解，并指导了在可变原料中优化合成气到甲烷转化的更稳定的微生物群落的工程设计。

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引用次数: 0

GIEHP: A global, AI-powered platform for near real-time ecological intelligence GIEHP：全球近实时生态智能人工智能平台

IF 14.3 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Science and Ecotechnology

Pub Date : 2025-11-01 Epub Date: 2025-11-19 DOI: 10.1016/j.ese.2025.100634

Dong Xu, Yi-Chen Wang

引用次数: 0

Evidence for local sources and trophic biomagnification of bisphenols in the Arctic 北极双酚的本地来源和营养生物放大的证据

IF 14.3 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Science and Ecotechnology

Pub Date : 2025-11-01 Epub Date: 2025-10-10 DOI: 10.1016/j.ese.2025.100627

Xi-Ze Min , Fei Chen , Zhi-Zhong Zhang , Lu Wang , Aasim M. Ali , Håkon A. Langberg , Sarah E. Hale , Gijsbert D. Breedveld , Bjørn Munro Jenssen , Åse-Karen Mortensen , Tomasz Ciesielski , Geir Wing Gabrielsen , Nan-Qi Ren , Yi-Fan Li , Zi-Feng Zhang , Roland Kallenborn

The Arctic, though remote, is exceptionally vulnerable to chemical contaminants that threaten its fragile ecosystems. Bisphenols (BPs), a class of endocrine-disrupting chemicals used in plastics and resins, are now detected across the Arctic, but the risks posed by their many analogues are poorly understood. Most studies have focused on documenting their presence, leaving a critical gap in our understanding of whether these compounds bioaccumulate in Arctic food webs and to what extent local, within-Arctic pollution contributes to the overall burden. Here we show, through a comprehensive analysis of 32 BPs in 134 samples from a Norwegian Arctic food web, that multiple BP analogues not only bioaccumulate but also biomagnify from plankton up to polar bears. We found that 5,5′-(1-methylethylidene)bis [(1,1′-biphenyl)-2-ol] (BPPH) exhibited the highest trophic magnification factor (TMF = 2.3), and we documented total BP concentrations in polar bear tissues up to 1396 ng g⁻¹ wet weight, orders of magnitude higher than in lower-trophic-level species. Furthermore, our analysis identified distinct local pollution sources, such as a firefighting training site releasing 2,4,6-trichlorophenol (2,4,6-TBP) and landfill leachate contributing other BPs to the local environment. These findings provide the first evidence of trophic magnification for multiple BPs in a polar food chain and underscore the urgent need to incorporate food-web dynamics and local source management into ecological risk assessments for the Arctic.

北极虽然地处偏远，但却特别容易受到威胁其脆弱生态系统的化学污染物的影响。双酚（bp）是一种用于塑料和树脂的内分泌干扰化学物质，现在在整个北极地区都被检测到，但人们对它们的许多类似物所带来的风险知之甚少。大多数研究都集中在记录它们的存在，这给我们的理解留下了一个关键的空白，即这些化合物是否在北极食物网中生物积累，以及北极内部的局部污染在多大程度上造成了总体负担。在这里，我们通过对来自挪威北极食物网的134个样本中的32种BP的综合分析表明，多种BP类似物不仅可以生物积累，还可以生物放大，从浮游生物到北极熊。我们发现5,5 ' -（1-甲基乙基）二[（1,1 ' -联苯）-2-醇]（BPPH）具有最高的营养放大因子（TMF = 2.3），并且我们记录了北极熊组织中的总BP浓度高达1396 ng g - 1湿重，比低营养水平物种高几个数量级。此外，我们的分析确定了不同的当地污染源，如消防训练场地释放2,4,6-三氯苯酚（2,4,6- tbp）和垃圾填埋场渗滤液，这些污染物对当地环境产生了其他bp。这些发现为极地食物链中多个bp的营养放大提供了第一个证据，并强调了将食物网动态和当地资源管理纳入北极生态风险评估的迫切需要。

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引用次数: 0

Immunoproteomics for wastewater-based health surveillance: A review 免疫蛋白质组学在废水健康监测中的应用综述

IF 14.3 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Science and Ecotechnology

Pub Date : 2025-11-01 Epub Date: 2025-10-03 DOI: 10.1016/j.ese.2025.100626

Jaxaira Maggi , Joaquin Abian , Antoni Ginebreda , Damià Barceló , Montserrat Carrascal

Wastewater-based epidemiology (WBE) offers a unique window into the health and habits of communities through the analysis of pollutants and biomarkers in sewage. Traditionally focused on small molecules, such as pharmaceuticals and illegal drugs, recent advances in environmental proteomics have expanded WBE to include large biomolecules such as proteins. Notably, novel sampling methods using polymeric probes and high-resolution mass spectrometry have facilitated the detection of human and animal proteins, both soluble and in particulate material, linking them to specific populations and industrial activities. An immunological dimension to this approach is fundamental to include the recognition of host immunoglobulins, immune-response proteins, and pathogen antigens in wastewater, potentially serving as indicators of community immune status, infection prevalence, and vaccination coverage. This review consolidates the latest advancements in environmental proteomics as applied to WBE, emphasizing an immunological perspective as a comprehensive tool for assessing population health and environmental conditions to bridge environmental monitoring, public health, and clinical diagnostics.

基于废水的流行病学（WBE）通过分析污水中的污染物和生物标志物，为了解社区的健康和习惯提供了一个独特的窗口。传统上专注于小分子，如药物和非法药物，环境蛋白质组学的最新进展已将WBE扩展到包括大型生物分子，如蛋白质。值得注意的是，使用聚合物探针和高分辨率质谱的新型采样方法促进了人类和动物蛋白质的检测，包括可溶性和颗粒物质，将它们与特定人群和工业活动联系起来。该方法的免疫学维度是基本的，包括对宿主免疫球蛋白、免疫反应蛋白和废水中的病原体抗原的识别，可能作为社区免疫状况、感染流行率和疫苗接种覆盖率的指标。本文综述了环境蛋白质组学在WBE研究中的最新进展，强调了免疫学视角作为评估人群健康和环境状况的综合工具，将环境监测、公共卫生和临床诊断联系起来。

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引用次数: 0

Accelerating bioelectrodechlorination via data-driven inverse design 通过数据驱动的逆设计加速生物电脱氯

IF 14.3 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Science and Ecotechnology

Pub Date : 2025-11-01 Epub Date: 2025-09-27 DOI: 10.1016/j.ese.2025.100625

Zhiling Li , Tianyi Huang , Fan Chen , Junqiu Jiang , Aijie Wang

Microbial electrorespiration harnesses bacteria to drive reductive dechlorination, offering a sustainable method to remediate environments contaminated with persistent chlorinated organic pollutants (COPs). However, aquifers' complex hydrogeological and hydrochemical conditions, combined with uneven COP distribution, create substantial spatial and temporal variability in biochemical reactions, environmental factors, and microbial communities. Traditional trial-and-error experiments are labor-intensive and slow, impeding the quick identification of conditions that accelerate dechlorination rates. Here we show that a machine learning framework, integrating experimental design with cathodic biofilm data, uncovers key interrelationships among environmental variables, dechlorination kinetics, electrochemical properties, and functional microbes, enabling rapid optimization of bioelectrodechlorination. Trained on literature-derived datasets using models such as extreme gradient boosting, random forest, and multilayer perceptron, this framework identifies temperature and cathode potential as primary drivers in experimental design while highlighting key biofilm genera, including Clostridium, Desulfovibrio, Dehalococcoides, Pseudomonas, Dehalobacter, Arcobacter, Lactococcus, and Geobacter. It supports inverse design to determine optimal parameters—such as cathode potential, temperature, and additives—for dechlorinating representative COPs, including tetrachloroethene, trichloroethene, and 1,2-dichloroethane, achieving reaction rate predictions with errors below 6 %. This approach surpasses conventional methods by increasing efficiency, cutting costs, and accelerating bioremediation without extensive laboratory testing. By incorporating microbial community insights into predictive models, our data-driven strategy advances the scalable application of microbial electrorespiration for COP-contaminated water remediation and paves the way for broader bioelectrochemical uses in environmental engineering.

微生物电呼吸利用细菌驱动还原性脱氯，为修复被持久性氯化有机污染物（cop）污染的环境提供了一种可持续的方法。然而，含水层复杂的水文地质和水化学条件，加上COP分布不均匀，造成了生物化学反应、环境因子和微生物群落的巨大时空变异。传统的试错实验是劳动密集型和缓慢的，阻碍了快速确定加速脱氯速率的条件。在这里，我们展示了一个机器学习框架，将实验设计与阴极生物膜数据相结合，揭示了环境变量、脱氯动力学、电化学性质和功能微生物之间的关键相互关系，从而实现了生物电脱氯的快速优化。使用极端梯度增强、随机森林和多层感知器等模型对文献数据集进行训练，该框架将温度和阴极电位确定为实验设计的主要驱动因素，同时突出了关键的生物膜属，包括Clostridium、Desulfovibrio、Dehalococcoides、Pseudomonas、Dehalobacter、Arcobacter、Lactococcus和Geobacter。它支持逆向设计，以确定最佳参数，如阴极电位、温度和添加剂，用于脱氯代表性cop，包括四氯乙烯、三氯乙烯和1,2-二氯乙烷，实现反应速率预测误差低于6%。该方法超越了传统方法，提高了效率，降低了成本，加速了生物修复，而无需大量的实验室测试。通过将微生物群落洞察纳入预测模型，我们的数据驱动策略推进了微生物电呼吸在二氧化碳污染水修复中的可扩展应用，并为环境工程中更广泛的生物电化学应用铺平了道路。

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引用次数: 0

Oxygen doping enhances piezo-photocatalytic degradation of carbamazepine by molybdenum disulfide 氧掺杂增强了二硫化钼对卡马西平的压电光催化降解

IF 14.3 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Science and Ecotechnology

Pub Date : 2025-11-01 Epub Date: 2025-12-02 DOI: 10.1016/j.ese.2025.100639

Yanjiao Li , Lianfeng Wang , Yuting Ning , Ying Yuan , Xinping Fu , Jun Cui , Yu Jiang

Environmental pollution from persistent pharmaceuticals like carbamazepine (CBZ) poses severe risks to aquatic ecosystems and human health, yet conventional treatments struggle with low concentrations and secondary pollution. Piezo-photocatalysis, which harnesses mechanical and solar energies to drive charge separation, offers a promising alternative using materials such as molybdenum disulfide (MoS₂), whose layered structure enables tunable piezoelectricity but is hindered by rapid electron-hole recombination and structural instability. However, the mechanistic role of oxygen doping in repairing sulfur vacancies and enhancing symmetry-breaking for improved performance remains underexplored. Here we show that hydrothermally synthesized oxygen-doped MoS₂ (O₅-MoS₂) fully degrades 2 mg L⁻¹ CBZ in 25 min under combined ultrasound and visible light, achieving a rate constant (k_obs) of 0.13 min⁻¹—11.4 times higher than undoped MoS₂. This stems from oxygen substitution narrowing the bandgap to 1.94 eV, boosting the piezoelectric coefficient to 63 p.m. V⁻¹ (versus 26 p.m. V⁻¹), and generating a 0.19 V built-in potential that drives charge separation, as confirmed by 4.18 μA cm⁻² synergistic photocurrents, density functional theory calculations revealing heightened Mo–O charge transfer (2.08–2.36 e⁻), and finite element simulations of deformation-induced fields. Over five cycles, O₅-MoS₂ retains 100 % efficiency with minimal Mo leaching (1.9 %), reducing product toxicity across fish, daphnid, and algal models. These findings delineate oxygen doping's dual role in defect mitigation and polarization enhancement, paving the way for robust piezo-photocatalytic systems in real-world water purification.

卡马西平（CBZ）等持久性药物造成的环境污染对水生生态系统和人类健康构成严重风险，但传统治疗方法难以应对低浓度和二次污染。压电光催化，利用机械和太阳能驱动电荷分离，提供了一个有前途的替代材料，如二硫化钼（MoS2），其层状结构可以实现可调谐的压电性，但受到快速电子-空穴复合和结构不稳定的阻碍。然而，氧掺杂在修复硫空位和增强对称性破缺以提高性能方面的机制作用仍未得到充分研究。在超声和可见光联合作用下，水热合成的氧掺杂MoS2 （O5-MoS2）在25 min内完全降解2 mg L−1 CBZ，其速率常数（kobs）为0.13 min−1 - 11.4倍。这是由于氧取代将带隙缩小到1.94 eV，将压电系数提高到63 p.m.。V−1（相对于26 p.m.）通过4.18 μA cm−2协同光电流、密度泛函理论计算显示Mo-O电荷转移增强（2.08-2.36 e−）以及变形诱导场的有限元模拟，证实了该方法可产生0.19 V驱动电荷分离的内置电位。在五个循环中，O5-MoS2保持100%的效率，Mo浸出率最低（1.9%），降低了产品对鱼类、水蚤和藻类的毒性。这些发现描述了氧掺杂在缺陷缓解和极化增强方面的双重作用，为在现实世界的水净化中建立强大的压电光催化系统铺平了道路。

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引用次数: 0

Temperature-dependent microbial dynamics in touchless sensor faucets during short-term stagnation 在短期停滞期间，非接触式传感器水龙头中的温度依赖微生物动力学

IF 14.3 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Science and Ecotechnology

Pub Date : 2025-11-01 Epub Date: 2025-09-24 DOI: 10.1016/j.ese.2025.100624

Anran Ren , Zihan Dai , Xiaoming Li , Walter van der Meer , Joan B. Rose , Gang Liu

Microbial contamination in building plumbing systems poses significant risks to public health at the point of use. Stagnation and warm temperatures are well-known drivers of microbial regrowth, but the effects of common short-term stagnation in touchless sensor faucets—widely used for hygiene and comfort—remain poorly understood. Here we show that microbial water quality in touchless sensor faucets changes during short-term stagnation (0.25–10 h) at varying temperatures (10, 30, and 40 °C). We identify two pivotal time points—2 and 4 h—where microbial diversity decreases and Legionella pneumophila concentrations increase significantly, driven by accelerated chlorine decay and biofilm contributions. Heating to 30 °C maximizes microbial biomass (measured as ATP) but minimizes L. pneumophila proliferation, whereas 40 °C reduces biomass while promoting L. pneumophila growth. These findings reveal a temperature-dependent microbial water quality guarantee period of 2–4 h, beyond which flushing is necessary to mitigate health risks. Optimizing faucet temperatures between 30 and 40 °C could balance microbial safety, user comfort, and energy efficiency, offering practical guidance for managing water quality in modern plumbing systems.

建筑管道系统中的微生物污染在使用点对公众健康构成重大风险。停滞和温暖的温度是众所周知的微生物再生的驱动因素，但在广泛用于卫生和舒适的非接触式传感器水龙头中，常见的短期停滞的影响仍然知之甚少。在这里，我们展示了在不同温度（10、30和40°C）下，非接触式传感器水龙头中的微生物水质在短期停滞（0.25-10小时）期间的变化。我们确定了两个关键时间点- 2和4h -微生物多样性下降，嗜肺军团菌浓度显著增加，由加速氯衰变和生物膜贡献驱动。加热至30°C可使微生物生物量（以ATP衡量）最大化，但使嗜肺乳杆菌增殖最小化，而加热至40°C可减少生物量，同时促进嗜肺乳杆菌生长。这些研究结果表明，温度相关的微生物水质保证期为2-4小时，超过这个时间就需要冲洗以减轻健康风险。优化30至40°C之间的水龙头温度可以平衡微生物安全，用户舒适度和能源效率，为现代管道系统中的水质管理提供实用指导。

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引用次数: 0

Tropical intertidal microbiome response to the 2024 Marine Honour oil spill 热带潮间带微生物组对2024年海洋荣誉石油泄漏的反应

IF 14.3 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Science and Ecotechnology

Pub Date : 2025-11-01 Epub Date: 2025-09-19 DOI: 10.1016/j.ese.2025.100623

Christaline George , Hashani M. Dharan , Lynn Drescher , Jenelle Lee , Yan Qi , Yijin Wang , Ying Chang , Serena Lay Ming Teo , Benjamin J. Wainwright , Charmaine Yung , Federico M. Lauro , Terry C. Hazen , Stephen B. Pointing

Marine fuel oil (MFO) spills in tropical coastal environments are under-characterized despite increasing risk from maritime activities. Microbial and geochemical responses to the June 2024 Marine Honour MFO spill on Singapore's intertidal sediments were analyzed in real time over 185 days. Using metagenomics and hydrocarbon profiling, microbial community shifts and hydrocarbon degradation were quantified across visibly oiled (high-impact) and clean (low-impact) sites. Microbiomes at all sites adapted rapidly to the spill through increased diversity and abundance of genes encoding alkane and aromatic compound degradation, detoxification, and biosurfactant production. The dominant hydrocarbon-degrading bacteria differed markedly from those reported in other crude oil spills and in regions with different climates. Oil deposition intensity strongly influenced microbial succession and hydrocarbon-degrading gene profiles, and this reflected early toxicity constraints in heavily oiled areas. The persistence of hydrocarbon degradation genes beyond hydrocarbon detection in sediments suggested long-term functional priming may occur. The study provides novel genome-resolved insight into the microbial response to MFO pollution, advances understanding of marine environmental biodegradation, and provides urgently needed baseline data for oil spill response strategies in Southeast Asia and beyond.

尽管海上活动的风险越来越大，但热带沿海环境中的海洋燃料油（MFO）泄漏尚未得到充分描述。在185天的时间里，实时分析了新加坡潮间带沉积物对2024年6月海洋荣誉MFO泄漏的微生物和地球化学反应。利用宏基因组学和碳氢化合物分析，微生物群落的变化和碳氢化合物降解在明显油污（高影响）和清洁（低影响）的地点进行了量化。通过增加编码烷烃和芳香族化合物降解、解毒和生物表面活性剂生产的基因的多样性和丰度，所有地点的微生物组迅速适应了泄漏。优势烃类降解细菌与其他原油泄漏和不同气候地区的报告明显不同。石油沉积强度强烈影响微生物演替和烃降解基因谱，这反映了重油区早期毒性限制。沉积物中烃类降解基因的持久性超过了烃类检测，这表明可能会发生长期的功能启动。该研究为微生物对MFO污染的反应提供了新的基因组解析见解，促进了对海洋环境生物降解的理解，并为东南亚及其他地区的溢油响应策略提供了迫切需要的基线数据。

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