Environmental Science and Ecotechnology最新文献

英文中文

Accelerating the establishment of a new science-policy panel to address the triple planetary crisis 加快建立新的科学政策小组，应对三重地球危机

IF 14 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Science and Ecotechnology

Pub Date : 2024-11-01 DOI: 10.1016/j.ese.2024.100498

Junyu Wang, Fengchang Wu, Huan Zhong, Xiaoli Zhao, Zhi Tang, Lin Niu, Xia Wang

引用次数: 0

Rapid identification of antibiotic resistance gene hosts by prescreening ARG-like reads 通过预筛选类似 ARG 的读数快速识别抗生素耐药基因宿主

IF 14 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Science and Ecotechnology

Pub Date : 2024-10-29 DOI: 10.1016/j.ese.2024.100502

Zhiguo Su , April Z. Gu , Donghui Wen , Feifei Li , Bei Huang , Qinglin Mu , Lyujun Chen

Effective risk assessment and control of environmental antibiotic resistance depend on comprehensive information about antibiotic resistance genes (ARGs) and their microbial hosts. Advances in sequencing technologies and bioinformatics have enabled the identification of ARG hosts using metagenome-assembled contigs and genomes. However, these approaches often suffer from information loss and require extensive computational resources. Here we introduce a bioinformatic strategy that identifies ARG hosts by prescreening ARG-like reads (ALRs) directly from total metagenomic datasets. This ALR-based method offers several advantages: (1) it enables the detection of low-abundance ARG hosts with higher accuracy in complex environments; (2) it establishes a direct relationship between the abundance of ARGs and their hosts; and (3) it reduces computation time by approximately 44–96% compared to strategies relying on assembled contigs and genomes. We applied our ALR-based strategy alongside two traditional methods to investigate a typical human-impacted environment. The results were consistent across all methods, revealing that ARGs are predominantly carried by Gammaproteobacteria and Bacilli, and their distribution patterns may indicate the impact of wastewater discharge on coastal resistome. Our strategy provides rapid and accurate identification of antibiotic-resistant bacteria, offering valuable insights for the high-throughput surveillance of environmental antibiotic resistance. This study further expands our knowledge of ARG-related risk management in future.

有效的风险评估和环境抗生素耐药性控制取决于有关抗生素耐药性基因（ARGs）及其微生物宿主的全面信息。测序技术和生物信息学的进步使得利用元基因组组装的等位基因和基因组识别 ARG 宿主成为可能。然而，这些方法往往会造成信息丢失，而且需要大量的计算资源。在这里，我们介绍了一种生物信息学策略，通过直接从元基因组数据集中预选类似 ARG 的读数（ALR）来鉴定 ARG 宿主。这种基于 ALR 的方法有几个优点：（1）它能在复杂环境中更准确地检测低丰度 ARG 宿主；（2）它在 ARG 的丰度和宿主之间建立了直接的关系；（3）与依赖于组装的等位基因组和基因组的策略相比，它减少了大约 44-96% 的计算时间。我们将基于 ALR 的策略与两种传统方法一起用于研究典型的人类影响环境。所有方法的结果都是一致的，揭示出 ARGs 主要由伽马蛋白菌和芽孢杆菌携带，它们的分布模式可能表明废水排放对沿岸抗性组的影响。我们的策略能快速准确地鉴定抗生素耐药菌，为高通量监测环境抗生素耐药性提供了宝贵的见解。这项研究进一步拓展了我们对未来 ARG 相关风险管理的认识。

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引用次数: 0

Mitigating household air pollution exposure through kitchen renovation 通过厨房改造减少家庭空气污染暴露

IF 14 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Science and Ecotechnology

Pub Date : 2024-10-22 DOI: 10.1016/j.ese.2024.100501

Yatai Men , Ke Jiang , Yaoji Li , Ran Xing , Zhihan Luo , Tianyao Huang , Shuyu Ou'yang , Wei Du , Yuanchen Chen , Guofeng Shen

Globally, over three billion people rely on traditional solid fuels for cooking and heating, leading to significant household air pollution and critical public health concerns. While transitioning to clean energy carriers faces challenges of accessibility and affordability—especially among low-income, rural populations—alternative strategies like kitchen layout modifications and the use of ventilation fans may effectively reduce exposure to pollutants. Here, we analyze factors influencing the adoption of separated kitchens and mechanical ventilation and evaluate changes in human exposure to PM_2.5 under different kitchen renovation scenarios by conducting a nationwide survey of household kitchen characteristics in rural China. We found that although 82% of rural households have kitchens separated from other rooms, only 34% use mechanical ventilation. The adoption of ventilation fans is significantly influenced by income and education levels. We estimate that widespread implementation of ventilation fans and separated kitchen designs could prevent approximately 67400 premature deaths annually, resulting in a health benefit of about USD 19 billion per year—substantially exceeding the costs involved. These findings suggest that cost-effective kitchen renovations offer enormous potential for substantial health benefits and present a practical solution compared to the challenges of clean energy transitions in rural areas.

全球有 30 多亿人依靠传统固体燃料做饭和取暖，导致严重的家庭空气污染和严重的公共健康问题。虽然向清洁能源载体过渡面临着可获得性和可负担性方面的挑战，尤其是在低收入和农村人口中，但厨房布局改造和使用换气扇等替代策略可有效减少污染物暴露。在此，我们通过在全国范围内开展中国农村家庭厨房特征调查，分析了采用分隔式厨房和机械通风的影响因素，并评估了在不同厨房改造方案下人类接触 PM2.5 的变化。我们发现，虽然 82% 的农村家庭将厨房与其他房间隔开，但只有 34% 的家庭使用机械通风。换气扇的采用受收入和教育水平的影响很大。我们估计，广泛采用换气扇和分隔式厨房设计每年可防止约 67400 人过早死亡，每年可带来约 190 亿美元的健康效益--大大超过相关成本。这些研究结果表明，具有成本效益的厨房改造具有巨大的潜力，可带来可观的健康效益，是应对农村地区清洁能源转型挑战的切实可行的解决方案。

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引用次数: 0

Enhanced removal of chiral emerging contaminants by an electroactive biofilter 利用电活性生物滤池提高手性新污染物的去除率

IF 14 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Science and Ecotechnology

Pub Date : 2024-10-22 DOI: 10.1016/j.ese.2024.100500

Álvaro Pun , Jesús Valimaña-Traverso , María Ángeles García , María Luisa Marina , Abraham Esteve-Núñez , Karina Boltes

50% of pharmaceuticals and 25% of herbicides used worldwide are chiral. Each enantiomer has a unique toxicity and biodegradation profile, affecting differently to organisms. Chirality plays a key role in the behavior of these emerging contaminants (ECs) in terms of their pharmacological or herbicidal activity, but this peculiarity is often overlooked in environmental research. The complexity of chiral ECs is underestimated, as the varying sensitivity of biological systems to enantiomers is rarely considered. Biofilters can promote the activity of specific microbial communities, facilitating the degradation of ECs, due to the greater interaction between water and microorganisms and their compact design. Here, we show that an electroactive biofilter can alter the chirality of drugs and herbicides in wastewater treatment, impacting their removal and toxicity. The electrochemical biofilter (BioeF) removed 80% of pharmaceuticals and 50–75% of herbicides, outperforming the conventional filter (ConF). BioeF also showed greater chiral alterations and lower ecotoxicity. This work provides the first evidence of a relationship between changes in contaminant chirality and detoxification capacity, enhanced by electroactive systems. The increased microbial activity observed in the BioeF suggests that bioelectrochemical systems offer a valuable advance for ECs removal and ecotoxicity reduction, addressing the environmental challenge posed by ECs.

全球使用的 50% 的药品和 25% 的除草剂都是手性的。每种对映体都具有独特的毒性和生物降解特性，对生物体的影响各不相同。手性对这些新出现的污染物（ECs）的药理或除草活性起着关键作用，但这种特殊性在环境研究中往往被忽视。人们低估了手性 EC 的复杂性，因为很少考虑到生物系统对对映体的不同敏感性。生物过滤器可以促进特定微生物群落的活性，从而促进对氨基甲酸乙酯的降解，这是因为水与微生物之间的相互作用更大，而且生物过滤器设计紧凑。在这里，我们展示了一种电活性生物滤池可以改变废水处理中药物和除草剂的手性，从而影响它们的去除和毒性。电化学生物滤池（BioeF）可去除 80% 的药物和 50-75% 的除草剂，性能优于传统滤池（ConF）。BioeF 还显示出更大的手性改变和更低的生态毒性。这项工作首次证明了污染物手性的变化与解毒能力之间的关系，并通过电活性系统得到了增强。在 BioeF 中观察到的微生物活性的增加表明，生物电化学系统为去除有机污染物和降低生态毒性提供了宝贵的进展，从而解决了有机污染物对环境造成的挑战。

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引用次数: 0

Peaking China's CO2 emissions by sectoral actions 通过部门行动实现中国二氧化碳排放封顶

IF 14 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Science and Ecotechnology

Pub Date : 2024-10-16 DOI: 10.1016/j.ese.2024.100499

Yixuan Zheng, Bofeng Cai, Yu Lei, Gang Yan

引用次数: 0

Synergetic strategies for carbon neutrality and clean air 碳中和与清洁空气的协同战略

IF 14 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Science and Ecotechnology

Pub Date : 2024-10-15 DOI: 10.1016/j.ese.2024.100497

Steven J. Davis

引用次数: 0

Optimizing soil conservation through comprehensive benefit assessment in river basins 通过流域综合效益评估优化水土保持。

IF 14 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Science and Ecotechnology

Pub Date : 2024-10-10 DOI: 10.1016/j.ese.2024.100496

Siqi Sun , Yihe Lü , Xiaoming Feng , Fernando T. Maestre , Bojie Fu

Land degradation from water erosion poses a significant threat to water security and ecosystem stability, driving global efforts in soil conservation. Quantitative assessment of soil conservation benefits—both on-site and off-site—is crucial for guiding effective conservation strategies. However, existing methodologies often fall short in quantifying the value of these combined benefits. Here, we present a comprehensive framework for quantifying soil conservation service flows in monetary terms, evaluating the effectiveness of both on-site and off-site measures. Applying this framework to the Yellow River Basin (YRB), we employ cost-avoidance algorithms related to soil fertility maintenance, dredging cost reduction, and mitigation of nonpoint source pollution. Our results reveal that while many areas contribute to both on-site and off-site benefits, over half of the YRB relies predominantly on off-site services. By strategically enhancing key regions—which constitute 30% of the basin—we demonstrate that the overall soil conservation service supply can increase by 64.2% over the multi-year average from 2001 to 2020 compared to a consideration of on-site only. These findings underscore the essential role of off-site services in fully understanding soil conservation needs, particularly in large river basins, and the identified priority areas can offer valuable insights for optimizing soil conservation efforts.

水土流失造成的土地退化对水安全和生态系统的稳定性构成了重大威胁，推动着全球在土壤保持方面的努力。土壤保护效益的量化评估--包括现场和非现场效益--对于指导有效的保护战略至关重要。然而，现有的方法往往无法量化这些综合效益的价值。在此，我们提出了一个以货币形式量化水土保持服务流的综合框架，以评估现场和非现场措施的有效性。将该框架应用于黄河流域（YRB），我们采用了与土壤肥力保持、疏浚成本降低和非点源污染缓解相关的成本规避算法。我们的研究结果表明，虽然许多地区既能带来现场效益，也能带来场外效益，但黄河流域一半以上的地区主要依靠场外服务。通过战略性地加强占该流域 30% 面积的关键区域，我们证明，与仅考虑现场服务相比，2001 年至 2020 年的多年平均水土保持服务供应总量可增加 64.2%。这些发现强调了非现场服务在充分了解土壤保持需求方面的重要作用，尤其是在大河流域，所确定的优先区域可为优化土壤保持工作提供宝贵的见解。

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引用次数: 0

Piezocatalysis for water treatment: Mechanisms, recent advances, and future prospects 压电催化用于水处理：机理、最新进展和未来展望

IF 14 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Science and Ecotechnology

Pub Date : 2024-10-08 DOI: 10.1016/j.ese.2024.100495

Tian Jiang , Yuehan Wang , Chang Cai , Chunyang Nie , Honggen Peng , Zhimin Ao

Piezocatalysis, which converts mechanical energy into chemical energy via the piezoelectric properties of materials, has emerged as a promising, eco-friendly technology for advanced oxidation processes in water treatment. It can be synergistically combined with other advanced oxidation techniques, such as photocatalysis and Fenton reactions, to enhance contaminant removal efficiency. In this Review article, we outline the fundamental principles of piezocatalysis, the mechanical energy sources employed, and recent advancements in piezocatalysis-coupled techniques for water decontamination. We systematically examine three potential mechanisms of piezocatalysis, assess the benefits and drawbacks of various mechanical energy inputs, and highlight the synergistic effects observed in combined systems. Furthermore, the review provides a roadmap for future research, emphasizing key areas such as piezocatalysis mechanisms, catalyst design, reactor architecture, and practical applications for water treatment. By offering a comprehensive analysis of current progress and challenges, this review is expected to stimulate further research into the theoretical and practical aspects of piezocatalysis-coupled technologies.

压电催化技术通过材料的压电特性将机械能转化为化学能，已成为水处理高级氧化工艺中一项前景广阔的环保技术。它可以与光催化和芬顿反应等其他高级氧化技术协同结合，提高污染物去除效率。在这篇综述文章中，我们概述了压电催化的基本原理、所使用的机械能源以及压电催化耦合水净化技术的最新进展。我们系统地研究了压催化的三种潜在机制，评估了各种机械能输入的优点和缺点，并强调了在组合系统中观察到的协同效应。此外，综述还为未来研究提供了路线图，强调了压电催化机制、催化剂设计、反应器结构和水处理实际应用等关键领域。通过对当前的进展和挑战进行全面分析，本综述有望促进对压电催化耦合技术理论和实践方面的进一步研究。

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引用次数: 0

In situ evolution of electrocatalysts for enhanced electrochemical nitrate reduction under realistic conditions 在现实条件下增强电化学硝酸盐还原的电催化剂原位进化

IF 14 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Science and Ecotechnology

Pub Date : 2024-09-13 DOI: 10.1016/j.ese.2024.100492

Yingkai Chen , Jiayu Luo , Li Ling , Zhengshuo Zhan , Jiutan Liu , Zongjun Gao , Jason Chun-Ho Lam , Chunhua Feng , Yang Lei

Electrochemical nitrate reduction to ammonia (ENRA) is gaining attention for its potential in water remediation and sustainable ammonia production, offering a greener alternative to the energy-intensive Haber-Bosch process. Current research on ENRA is dedicated to enhancing ammonia selectively and productivity with sophisticated catalysts. However, the performance of ENRA and the change of catalytic activity in more complicated solutions (i.e., nitrate-polluted groundwater) are poorly understood. Here we first explored the influence of Ca²⁺ and bicarbonate on ENRA using commercial cathodes. We found that the catalytic activity of used Ni or Cu foam cathodes significantly outperforms their pristine ones due to the in situ evolution of new catalytic species on used cathodes during ENRA. In contrast, the nitrate conversion performance with nonactive Ti or Sn cathode is less affected by Ca²⁺ or bicarbonate because of their original poor activity. In addition, the coexistence of Ca²⁺ and bicarbonate inhibits nitrate conversion by forming scales (CaCO₃) on the in situ-formed active sites. Likewise, ENRA is prone to fast performance deterioration in treating actual groundwater over continuous flow operation due to the presence of hardness ions and possible organic substances that quickly block the active sites toward nitrate reduction. Our work suggests that more work is required to ensure the long-term stability of ENRA in treating natural nitrate-polluted water bodies and to leverage the environmental relevance of ENRA in more realistic conditions.

电化学硝酸盐还原成氨（ENRA）因其在水质修复和可持续氨生产方面的潜力而备受关注，它为高能耗的哈伯-博什工艺提供了一种更环保的替代方法。目前有关 ENRA 的研究致力于利用复杂的催化剂提高氨的选择性和生产率。然而，人们对 ENRA 的性能以及催化活性在更复杂溶液（如硝酸盐污染的地下水）中的变化知之甚少。在此，我们首先利用商用阴极探讨了 Ca2+ 和碳酸氢盐对 ENRA 的影响。我们发现，使用过的镍或铜泡沫阴极的催化活性明显优于原始阴极，这是因为在 ENRA 过程中，使用过的阴极上出现了新的催化物种。相比之下，非活性 Ti 或 Sn 阴极的硝酸盐转化性能受 Ca2+ 或碳酸氢盐的影响较小，因为它们原本的活性较低。此外，Ca2+ 和碳酸氢盐的共存会在原位形成的活性位点上形成鳞片（CaCO3），从而抑制硝酸盐的转化。同样，由于存在硬度离子和可能的有机物质，ENRA 在处理实际地下水时容易出现性能快速下降的问题，因为这些物质会迅速阻塞硝酸盐还原的活性位点。我们的研究表明，要确保 ENRA 在处理受硝酸盐污染的天然水体时的长期稳定性，并在更现实的条件下利用 ENRA 的环境相关性，还需要做更多的工作。

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引用次数: 0

Stable phytoplankton community compositions in Lake Mead (Nevada-Arizona, USA) during two decades of severe drought 二十年严重干旱期间米德湖（美国内华达州-亚利桑那州）稳定的浮游植物群落组成

IF 14 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Science and Ecotechnology

Pub Date : 2024-09-13 DOI: 10.1016/j.ese.2024.100491

Charlotte van der Nagel , Deena Hannoun , Todd Tietjen

Lake Mead, a large reservoir on the Colorado River and a critical drinking water source for the southwestern United States, typically exhibits high water quality, characterized by low nutrient and chlorophyll-a concentrations. This stability persists despite the inflow of highly treated wastewater since the 1960s and significant water level declines since 2000, driven by the ongoing Megadrought and basin-wide consumptive use. Such environmental changes may alter phytoplankton communities, potentially leading to increased cyanobacteria abundance, which could negatively impact water quality and the aquatic ecosystem through harmful algal blooms and toxin production. Here we analyzed 17 years of phytoplankton community structure and chlorophyll-a concentrations in Lake Mead, alongside quantitative water quality data, including nutrients, temperature, and water clarity, to assess the effects of environmental changes on phytoplankton communities. Contrary to the hypothesis that cyanobacteria abundance would have increased throughout the reservoir, our results indicate that phytoplankton community structures have remained largely stable, except for shallow areas where increases in temperature or phosphorus levels were observed. Additionally, we evaluated machine learning models for predicting changes in phytoplankton community structures. While the models confidently predicted changes in total phytoplankton biovolume and chlorophyll-a concentrations within the input parameter boundaries, predictions of peak biovolume showed considerable uncertainty, emphasizing the importance of incorporating uncertainty analysis in forecasting and communicating results. This study underscores the current buffering capacity of large, oligotrophic reservoirs like Lake Mead to maintain stable phytoplankton communities despite environmental changes. However, it also highlights the potential for significant community shifts if this buffering capacity is exceeded.

米德湖是科罗拉多河上的一个大型水库，也是美国西南部的重要饮用水源，水质通常很高，营养物和叶绿素-a 浓度都很低。尽管自 20 世纪 60 年代以来，经过高度处理的废水不断流入，而且自 2000 年以来，由于持续的特大干旱和整个流域的消耗性使用，水位显著下降，但这种稳定性依然存在。这种环境变化可能会改变浮游植物群落，从而可能导致蓝藻丰度的增加，而蓝藻丰度的增加可能会导致有害藻类大量繁殖并产生毒素，从而对水质和水生生态系统造成负面影响。在此，我们分析了米德湖 17 年来的浮游植物群落结构和叶绿素-a 浓度，以及定量水质数据（包括营养物质、温度和水透明度），以评估环境变化对浮游植物群落的影响。与蓝藻丰度会在整个水库中增加的假设相反，我们的研究结果表明，浮游植物群落结构在很大程度上保持稳定，只有在温度或磷含量增加的浅水区除外。此外，我们还评估了预测浮游植物群落结构变化的机器学习模型。虽然这些模型能准确预测输入参数范围内浮游植物总生物量和叶绿素-a 浓度的变化，但对生物量峰值的预测却显示出相当大的不确定性，这强调了在预测和交流结果时纳入不确定性分析的重要性。这项研究强调了米德湖等大型寡营养型水库目前的缓冲能力，可以在环境变化的情况下保持稳定的浮游植物群落。不过，它也强调了如果超过这种缓冲能力，群落可能会发生重大变化。

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