环境科学与生态学最新文献_第5页

Combined Enterohepatic Toxicity of Polystyrene Microplastics and Di(2-ethylhexyl) Phthalate in Mice: Gut Microbiota-Dependent Synergistic Effects 聚苯乙烯微塑料和邻苯二甲酸二（2-乙基己基）对小鼠的联合肠肝毒性：肠道微生物依赖的协同效应

IF 8.9 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Pollution

Pub Date : 2026-02-09 DOI: 10.1016/j.envpol.2026.127792

Yuzhi Lan, Tao You, Xiaoyan Feng, Jiajun Guo, Hengyi Xu

With growing toxicological research on microplastics (MPs), scientific attention has shifted from their single toxicity to their combined toxicity with other pollutants. Di(2-ethylhexyl) phthalate (DEHP), a common synthetic plasticizer, may co-occur with MPs through intrinsic association during production or through exogenous environmental pathways, posing the significant risk of co-exposure to organism. Oral exposure represents the primary route for MPs and DEHP, which traverse the gastrointestinal tract and target the enterohepatic system through direct intestinal interaction and systemic circulation. However, their combined toxicity, especially enterohepatic, remains poorly studied in the mammals. In this study, adult C57/BL6J mice were employed and exposed to polystyrene MPs (PS-MPs), DEHP or both for eight weeks. It was revealed that co-exposure to PS-MPs and DEHP induced more significant enterohepatic toxicity than the single exposures, involving enhanced enterohepatic inflammatory response and oxidative stress, as well as intestinal microbial disturbance. Furthermore, after fecal microbiota transplantation, the recipient mice developed similar trends of enterohepatic toxicity to those observed in the corresponding donor mice, revealing the key function played by intestinal microbiota. This study highlighted the crucial link of the gut-liver axis in the combined effects of PS-MPs and DEHP-induced enterohepatic toxicity in mammals and provided a mechanism insight of co-exposure to MPs and other environmental pollutants.

随着对微塑料的毒理学研究日益深入，科学研究的重点已从其单一毒性转向其与其他污染物的复合毒性。邻苯二甲酸二（2-乙基己基）酯（DEHP）是一种常见的合成增塑剂，可能在生产过程中通过内在关联或通过外源性环境途径与多磺酸粘多糖共同发生，对生物体构成共同暴露的重大风险。口服暴露是MPs和DEHP的主要途径，它们穿过胃肠道，通过直接的肠道相互作用和体循环靶向肠肝系统。然而，它们的联合毒性，特别是肠肝毒性，在哺乳动物中的研究仍然很少。在本研究中，成年C57/BL6J小鼠暴露于聚苯乙烯MPs （PS-MPs）、DEHP或两者同时暴露8周。结果表明，PS-MPs和DEHP共暴露比单独暴露诱导的肠肝毒性更显著，包括肠肝炎症反应和氧化应激增强，以及肠道微生物紊乱。此外，粪便微生物群移植后，受体小鼠与相应的供体小鼠出现了相似的肠肝毒性趋势，揭示了肠道微生物群发挥的关键功能。本研究强调了肠道-肝脏轴在PS-MPs和dehp诱导的哺乳动物肠肝毒性联合效应中的重要联系，并提供了MPs与其他环境污染物共同暴露的机制见解。

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引用次数: 0

Plastic threats to coral reefs: A strategic management perspective from Bali's marine protected areas 塑料对珊瑚礁的威胁：从巴厘岛海洋保护区的战略管理角度看

IF 5.8 3区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Marine pollution bulletin

Pub Date : 2026-02-09 DOI: 10.1016/j.marpolbul.2026.119385

I. Gede Hendrawan, Ade Riestiari Sudarmawan, Putra Bagus Panji Pamungkas, Pande Gde Sasmita Julyantoro, I. Wayan Gede Astawa Karang, Dwi Budi Wiyanto, I. Made Dharma Raharja, I. Putu Ranu Fajar Maharta, Cornelia Coraima Lazaren, Alex S.J. Wyatt

Plastic pollution remains a significant threat to coral reef ecosystems, even within Marine Protected Areas (MPAs). This study assesses the levels and types of plastic debris, both macroplastics and microplastics, found in coral reef ecosystems at two MPAs in Bali: Karangasem and Nusa Penida. Coral health was evaluated using the Underwater Photo Transect (UPT) method, while plastic particles were identified through field sampling and laboratory analysis, including Raman spectroscopy. Macroplastic accumulation was higher in Karangasem, while microplastic concentrations were comparable between the two regions. Microplastics were detected in coral tissues, and Polyethylene (PET and LDPE) was the dominant polymer. Although Pollution Load Index (PLI) values indicate a low ecological risk, it is evident that both MPAs suffer from coral degradation. Notably, the data suggest that macroplastic may have a more direct impact on coral reefs through physical damage. Despite these threats, both MPAs exhibited high ecological resilience, suggesting strong recovery potential if waste inputs are reduced. The findings highlight the important of improving waste management, especially capacity building and increased funding allocation. Strengthening each strategic approach of the MPAs can reduce plastic leakage into the sea and support coral reef recovery.

塑料污染仍然是珊瑚礁生态系统的重大威胁，即使在海洋保护区（MPAs）内也是如此。这项研究评估了巴厘岛两个海洋保护区（Karangasem和Nusa Penida）珊瑚礁生态系统中塑料碎片的水平和类型，包括宏观塑料和微塑料。使用水下光样带（UPT）方法评估珊瑚健康状况，而通过现场采样和实验室分析（包括拉曼光谱）识别塑料颗粒。大塑性累积在卡兰加西姆较高，而微塑性浓度在两个地区之间具有可比性。珊瑚组织中检测到微塑料，聚乙烯（PET和LDPE）是主要的聚合物。虽然污染负荷指数（PLI）值显示生态风险较低，但显然这两个海洋保护区都受到珊瑚退化的影响。值得注意的是，数据表明，宏观塑料可能通过物理破坏对珊瑚礁产生更直接的影响。尽管存在这些威胁，但两个海洋保护区都表现出较高的生态恢复能力，表明如果减少废物投入，恢复潜力很大。研究结果强调了改善废物管理，特别是能力建设和增加资金分配的重要性。加强海洋保护区的每一项策略，可减少塑胶渗漏入海，支持珊瑚礁复原。

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引用次数: 0

Lithium extraction from oil and gas produced water: resource characteristics, technological challenges and future perspectives 从油气产出水中提取锂：资源特征、技术挑战和未来展望

IF 12.8 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Water Research

Pub Date : 2026-02-09 DOI: 10.1016/j.watres.2026.125546

Xinlei Wang, Tao Ding, Mianping Zheng, Denghong Wang, Zhen Nie, Gao Song

Driven by the global transition to low-carbon energy and the rapid development of the electric vehicle industry, the finite supply of lithium (Li) resources coupled with growing demand will exacerbate the imbalance between supply and demand. Current Li supply primarily relies on traditional resources such as salt lake brines and hard-rock ores. However, these resources exhibit concentrated geographic distribution and incur high environmental costs, posing severe constraints on sustainable resource utilization and supply chain security. Oil and gas produced water (OGPW), a persistent byproduct of hydrocarbon extraction, is regarded as a highly promising unconventional Li resource due to its widespread distribution and Li content far exceeding industrial-grade standards. Compared to traditional salt lake brines, OGPW exhibits characteristics such as low Li concentrations, high salinity, complex ionic compositions, abundant organic contaminants, and harsh field conditions, which substantially increase the technical difficulty of Li extraction. This review systematically summarizes recent advances in Li extraction technologies, covering evaporation-precipitation, solvent extraction, adsorption, membrane separation, and electrochemical technologies, while critically evaluating their applicability to OGPW under complex compositions and field conditions. The study emphasizes that efficient Li recovery from OGPW cannot rely on a single extraction technology. Instead, customized integrated process designs are required, combining complementary separation mechanisms to address the complex composition and field conditions of OGPW. Future research should focus on developing integrated process systems that synergistically achieve Li extraction and water treatment, thereby fulfilling dual objectives of resource recovery and environmental management.

在全球向低碳能源转型和电动汽车产业快速发展的推动下，锂资源的有限供应加上需求的不断增长将加剧供需失衡。目前的锂供应主要依赖于传统资源，如盐湖盐水和硬岩矿石。但这些资源地理分布集中，环境成本高，严重制约了资源的可持续利用和供应链安全。油气采出水（OGPW）是油气开采过程中长期存在的副产品，由于其分布广泛且含量远超工业级标准，被认为是极具潜力的非常规锂资源。与传统盐湖盐水相比，OGPW具有锂浓度低、盐度高、离子组成复杂、有机污染物丰富、野外条件恶劣等特点，大大增加了锂提取的技术难度。本文系统总结了锂提取技术的最新进展，包括蒸发-沉淀、溶剂萃取、吸附、膜分离和电化学技术，同时批判性地评价了它们在复杂成分和现场条件下对OGPW的适用性。该研究强调，从OGPW中有效回收锂不能依赖于单一的提取技术。相反，需要定制的集成工艺设计，结合互补的分离机制来解决OGPW的复杂组成和现场条件。未来的研究应侧重于开发协同实现锂提取和水处理的集成工艺系统，从而实现资源回收和环境管理的双重目标。

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引用次数: 0

Impact of alpha self-absorption on personal air sampling in NORM operations. 规范作业中α自吸收对个人空气采样的影响。

IF 1.8 4区环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES

Journal of Radiological Protection

Pub Date : 2026-02-09 DOI: 10.1088/1361-6498/ae3f3e

Gregory S Hewson, Martin I Ralph, Marcus Cattani

Personal air sampling (PAS) is used to assess worker intake of airborne radioactivity in operations processing minerals containing naturally occurring radionuclides. Subsequent alpha particle counting of the PAS filter may be affected by self-absorption of the alpha particles in the dust matrix or filter, depending on the dust loading on the filter and the size of particles collected. This review investigates the potential for self-absorption on air sampling filters via a literature review and by applying a formula to correct past PAS data from the mineral sand industry. The findings indicate that PAS estimates of intake were consistently under-stated by at least 40% across work categories engaged in the operation and maintenance of mineral sand separation plants. An alpha particle self-absorption greater than 50% was derived when dust loading on the PAS filter exceeded 3 mg·cm^-2. The findings demonstrate that historical PAS data in industries where self-absorption effects are neglected can substantially underestimate worker radionuclide intakes and doses, with important implications for retrospective dose assessment.

个人空气取样（PAS）用于评估工人在加工含有天然放射性核素的矿物的作业中吸入的空气放射性。PAS过滤器的后续α粒子计数可能受到粉尘基质或过滤器中α粒子的自吸收的影响，这取决于过滤器上的粉尘负荷和收集的颗粒大小。本综述通过文献综述和应用公式来纠正矿砂行业过去的PAS数据，研究了空气采样过滤器自吸收的潜力。研究结果表明，在矿砂分离厂的操作和维护工作类别中，PAS对摄入量的估计一直被低估至少40%。当PAS过滤器上的粉尘负荷超过3 mg cm-2时，α粒子的自吸收率大于50%。研究结果表明，忽略自吸收效应的工业的历史PAS数据可能大大低估了工人的放射性核素摄入量和剂量，这对回顾性剂量评估具有重要意义。

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引用次数: 0

GHG emission from diesel-powered irrigation pumps and mitigation potentials in agriculture sector of Nepal. 尼泊尔农业部门柴油动力灌溉泵的温室气体排放和减缓潜力。

IF 5.8 3区环境科学与生态学 0 ENVIRONMENTAL SCIENCES

Environmental Science and Pollution Research

Pub Date : 2026-02-09 DOI: 10.1007/s11356-026-37494-5

Sudeep Thakuri, Shisher Shrestha, Raista Palikhe, Raju Chauhan

Emissions from diesel-powered irrigation pumps (DIPs) in Nepal's agriculture sector contribute to climate change and local air pollution. This study presents the emission estimation using emission factors (EFs) for energy use in DIPs and estimates the contribution of DIPs to the GHGs emission in Nepal using both the bottom-up and top-down approaches. It involves analyzing data on the number of DIPs, the amount of fuel used for irrigation, hours of operations, and efficiency of the pumps. The various EFs for the DIPs were collected from the previous research reports and articles. The activity data for the bottom-up approach was collected from a telephone survey, field sampling, and review of the existing documents. The country-specific EFs for energy use in DIPs developed in Nepal by previous studies using sample measurements were used in this study. The estimated number of DIPs for 2024 is about 51,137 (1.5 to 9 hp; average 5 hp DIPs), operating an average of 192 h per year in Nepal. The DIPs consume 5891 m³ (kL) of fuel per year and emit 14,674 tons of CO₂, 20.9 tons of CH₄, 0.18 tons of N₂O, 71.3 tons of NO_x, 52.2 tons of non-methane volatile organic carbon (NMVOC), 332.0 tons of CO, 54.4 tons of PM_2.5, 40.30 tons of organic carbon (OC), 17.8 tons of black carbon (BC), and 0.6 tons of SO₂ each year. The number of solar-powered irrigation pumps (SIPs) is 3129, which is about 2% of total irrigation pumps in Nepal. Farmers are providing encouraging feedback on the use of SIPs in their small-sized farms. The study shows that the number of electricity-powered pumps has increased rapidly by replacing the DIPs after the mid-2010s due to increased access to the grid electricity. The assessment is expected to support identifying opportunities to reduce emissions through improvements in technology, management practices, and other strategies.

尼泊尔农业部门柴油灌溉泵（DIPs）的排放加剧了气候变化和当地空气污染。本研究提出了利用排放因子（EFs）对dip的能源使用进行排放估算，并使用自下而上和自上而下的方法估算了dip对尼泊尔温室气体排放的贡献。它包括分析dip的数量、用于灌溉的燃料量、运行时间和水泵效率等数据。dip的各种EFs是从以前的研究报告和文章中收集的。自下而上方法的活动数据是从电话调查、实地抽样和对现有文件的审查中收集的。在本研究中使用了尼泊尔以前使用样本测量的研究开发的针对dip能源使用的国别EFs。预计2024年dip数量约为51137台（1.5至9马力；平均dip为5马力），在尼泊尔平均每年运行192小时。DIPs每年消耗5891立方米（kL）燃料，排放14674吨二氧化碳、20.9吨CH4、0.18吨N2O、71.3吨NOx、52.2吨非甲烷挥发性有机碳（NMVOC）、332.0吨CO、54.4吨PM2.5、40.30吨有机碳（OC）、17.8吨黑碳（BC）和0.6吨SO2。太阳能灌溉泵（sip）的数量为3129台，约占尼泊尔灌溉泵总数的2%。农民对在他们的小型农场使用SIPs提供了令人鼓舞的反馈。该研究表明，由于电网供电的增加，2010年代中期以后，电动泵的数量迅速增加，取代了dip。预计该评估将有助于确定通过改进技术、管理实践和其他战略来减少排放的机会。

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引用次数: 0

Health risk assessment of radon exposure through drinking water in Iluagba, Kogi State, Nigeria. 尼日利亚科吉州伊卢格巴通过饮用水接触氡的健康风险评估。

IF 1.4 4区环境科学与生态学 Q4 CHEMISTRY, INORGANIC & NUCLEAR

Isotopes in Environmental and Health Studies

Pub Date : 2026-02-09 DOI: 10.1080/10256016.2026.2615248

Ibrahim Ayodeji Bello, Abdullahi Muhammad Vatsa, Hameed Adavize Momoh, Taiwo Abadunmi, A A Bello

This study investigates radon concentrations in groundwater from 20 locations in Iluagba, Kogi State, Nigeria, analyzed using a liquid scintillation counter. Radon levels ranged from 10.6-43.1 Bq/L (average 24.1 Bq/L). Although below the World Health Organisation (WHO) limit of 100 Bq/L, about 90 % exceeded the United States Environmental Protection Agency (USEPA) advisory level of 11.1 Bq/L, indicating potential long-term health risks. The annual effective dose (AED) was highest in infants (up to 163.5 µSv/y), with seven samples exceeding the WHO reference dose of 100 µSv/y. Excess lifetime cancer risk (ELCR) values for all age groups surpassed the USEPA safety threshold (1.0 × 10^-⁴), identifying infants as the most vulnerable group. Organ-specific analysis showed the lungs received substantially higher doses than the stomach, confirming inhalation as the primary exposure route. While strong correlations (r ≈ 1.0) validated internal data consistency, the elevated radiological risk remains the key concern. Compared with other Nigerian regions, Iluagba exhibits moderate to high exposure levels. These findings underscore the need for targeted radon mitigation, community education, and routine groundwater monitoring to safeguard public health in Kogi State.

本研究调查了尼日利亚科吉州伊卢格巴20个地点地下水中的氡浓度，并使用液体闪烁计数器进行了分析。氡水平介乎10.6至43.1 Bq/L（平均24.1 Bq/L）。虽然低于世界卫生组织（WHO） 100 Bq/L的限值，但超过美国环境保护署（USEPA） 11.1 Bq/L的咨询水平约90% %，表明潜在的长期健康风险。婴儿的年有效剂量（AED）最高（高达163.5 µSv/y），有7个样本超过世卫组织100 µSv/y的参考剂量。所有年龄组的超额终身癌症风险（ELCR）值都超过了美国环保署的安全阈值（1.0 × 10-⁴），将婴儿确定为最脆弱的群体。器官特异性分析显示，肺部受到的剂量明显高于胃，证实了吸入是主要的暴露途径。虽然强相关性（r ≈ 1.0）验证了内部数据的一致性，但辐射风险的升高仍然是关键问题。与尼日利亚其他地区相比，伊卢格巴显示出中度至高度的暴露水平。这些调查结果强调需要有针对性地减少氡，开展社区教育和常规地下水监测，以保障科吉州的公众健康。

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引用次数: 0

Catalytic co-pyrolysis-hydrogenation of lignin and polyolefin waste into biofuels: A comparative energy–environment–economy analysis of hydrogen sourcing strategies 催化共热解-加氢木质素和聚烯烃废物为生物燃料：氢源策略的比较能源-环境-经济分析

IF 11.1 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Journal of Cleaner Production

Pub Date : 2026-02-09 DOI: 10.1016/j.jclepro.2026.147728

Xiang Zheng, Zhaoping Zhong, Bo Zhang, Lihua Shen, Wei Wang, Renzhi Qi, Qihang Ye

During the fermentation of lignocellulosic biomass for biofuel, enzymatic hydrolysis lignin (EHL), a byproduct rich in aromatic ring structures, is generated in substantial quantities. Currently, most EHL is directly combusted or co-fired in boilers, resulting in environmental pollution and resource wastage. In this study, EHL and polyolefin waste were co-pyrolyzed to produce bio-oil, which was subsequently upgraded via catalytic hydrogenation to obtain high-quality biofuel. Based on our own experimental data, three H2 supply strategies (designated as Case 1 to 3) were simulated to optimize biofuel production from the co-pyrolysis-derived bio-oil: Case 1 utilized commercially purchased H2, Case 2 employed H2 produced via natural gas reforming, and Case 3 utilized H2 generated through partial reforming of the bio-oil itself. The systems were comparatively analyzed through three complementary methodologies‒life cycle assessment, exergy analysis, and techno-economic assessment‒implemented using eBalance, Aspen Plus, and custom calculations, respectively. Results revealed that Case 3 achieved the lowest biofuel production cost ($0.026 MJ−1) along with the highest exergy efficiency (42.56%), whereas Case 1 demonstrated the lowest environmental impact. Sensitivity analysis based on Monte Carlo simulations identified critical variables related to feedstock characteristics and resource inputs. Multi-criteria analysis was performed by normalizing energy, environmental, and economic indicators. The comprehensive evaluation indexes (CEIs) were calculated by assigning equal weight to energy utilization, environmental impact, and biofuel cost. The resulting CEIs for Case 1, Case 2, and Case 3 were 0.185, 0.231, and 0.172, respectively. The strategy of partial bio-oil reforming for H2 production in Case 3 demonstrates strong application potential.

在用于生物燃料的木质纤维素生物质发酵过程中，酶解木质素（EHL）是一种富含芳香环结构的副产物，会大量产生。目前，大部分EHL在锅炉内直接燃烧或共烧，造成环境污染和资源浪费。在本研究中，EHL和聚烯烃废弃物共热解生产生物油，然后通过催化加氢升级得到高质量的生物燃料。基于我们自己的实验数据，模拟了三种H2供应策略（指定为案例1至案例3），以优化共热解衍生生物油的生物燃料生产：案例1使用商业购买的H2，案例2使用天然气重整产生的H2，案例3使用生物油本身部分重整产生的H2。通过三种互补的方法——生命周期评估、能源分析和技术经济评估——分别使用eBalance、Aspen Plus和自定义计算对系统进行了比较分析。结果表明，案例3实现了最低的生物燃料生产成本（0.026 MJ−1美元）和最高的能源效率（42.56%），而案例1表现出最低的环境影响。基于蒙特卡罗模拟的敏感性分析确定了与原料特性和资源投入相关的关键变量。通过标准化能源、环境和经济指标进行多标准分析。以能源利用、环境影响和生物燃料成本为权重，计算综合评价指标（CEIs）。案例1、案例2和案例3的cei分别为0.185、0.231和0.172。案例3的部分生物油重整制氢策略具有较强的应用潜力。

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引用次数: 0

Comparative Effects of Raw and Aged Tire Microplastics on Anaerobic Fermentation of Excess Sludge 生、老化轮胎微塑料对剩余污泥厌氧发酵的影响比较

IF 13.6 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Journal of Hazardous Materials

Pub Date : 2026-02-09 DOI: 10.1016/j.jhazmat.2026.141391

Hu Kai, Ding Hao, Wang Wei, Guo Rui, Chen Wei, Xu Hang

Tire microplastics (TMs), as a prominent environmental source of microplastic pollution, are aged and accumulated during their migration through drainage systems and sewage treatment facilities, most of which trapped in excess sludge. Consequently, this study systematically examines the concentration-dependent effects of TMs and aged TMs (ATMs) on anaerobic fermentation of excess sludge. Results showed that TMs and ATMs negatively affected acidogenic fermentation and organic matter hydrolysis. Low TMs concentration (0.002 g/g-VSS) and high ATMs concentration (0.2 g/g-VSS) resulted in concentration reductions of volatile fatty acids, soluble chemical oxygen demand, proteins, and polysaccharides ranged from 16.28% - 40.40% relative to the control group. In general, the detrimental effect demonstrated a positive correlation with ATM concentration. Conversely, low TMs concentration exerted a ‌significant inhibitory impact compared with high concentration, which contradicted the hormetic effect. In response to TMs/ATMs stress, the microorganisms employed extracellular polymeric substances (EPS) secretion as a defense mechanism, with pronounced‌ variations examined in protein content within tightly bound EPS and polysaccharide content in loosely bound EPS. Comprehensive mechanistic analysis revealed that although the incorporation of TMs/ATMs into fermentation system improved electron transfer efficiency through elevating electron transport system activity and sludge conductivity, TMs demonstrated superior interspecies electron transfer (IET) enhancement compared to ATMs, coupled with material-dependent suppression of hydrolytic and acidogenic bacterial consortia, which potentially altering the acid generation and microbial dynamics. Overall, our study provides critical insights for optimizing TMs control in sludge treatment by leveraging their differential profiles toward IET and bacterial consortia.

轮胎微塑料（TMs）作为微塑料污染的重要环境来源，在其通过排水系统和污水处理设施迁移过程中老化和积累，其中大部分被滞留在多余的污泥中。因此，本研究系统地考察了TMs和老化TMs （atm）对剩余污泥厌氧发酵的浓度依赖性影响。结果表明，TMs和ATMs对产酸发酵和有机物水解均有不利影响。低TMs浓度（0.002 g/g- vss）和高ATMs浓度（0.2 g/g- vss）导致挥发性脂肪酸、可溶性化学需氧量、蛋白质和多糖的浓度较对照组降低16.28% ~ 40.40%。总的来说，有害影响与ATM浓度呈正相关。相反，与高浓度相比，低浓度的TMs具有显著的抑制作用，这与激效效应相矛盾。为了应对TMs/ atm胁迫，微生物利用细胞外聚合物（EPS）分泌作为防御机制，在紧密结合的EPS中蛋白质含量和松散结合的EPS中多糖含量发生了明显的变化。综合机理分析表明，虽然TMs/ atm加入发酵系统通过提高电子传递系统活性和污泥电导率提高了电子传递效率，但与atm相比，TMs表现出更强的种间电子传递（IET）增强，再加上对水解菌和产酸菌群的物质依赖性抑制，这可能改变酸的产生和微生物动力学。总的来说，我们的研究通过利用TMs对IET和细菌联合体的不同概况，为优化污泥处理中的TMs控制提供了重要见解。

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引用次数: 0

Far UVC (222 nm) Enhances Chloramine-Based Advanced Oxidation in Wastewater Recycling: 1,4-Dioxane Removal, Radical Generation, and DBP Formation 远UVC （222 nm）增强氯胺基深度氧化废水循环：1,4-二氧六环去除，自由基生成和DBP形成

IF 12.8 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Water Research

Pub Date : 2026-02-09 DOI: 10.1016/j.watres.2026.125541

Mohsin Uddin, Jiale Xu

UV-based advanced oxidation process (AOP) is critical for wastewater recycling to control organic micropollutants (e.g., 1,4-dioxane) that remain in reverse osmosis permeates. Krypton chloride excimer lamp emitting at far-UVC 222 nm (UV₂₂₂) is promising for water treatment. This study demonstrated that far-UVC light enhanced UV/NH₂Cl compared with traditional low-pressure UV (LPUV) at 254 nm (UV₂₅₄) for wastewater recycling. Its impacts on 1,4-dioxane (1,4-D) removal, radical steady-state concentrations, and DBP formation were assessed. A low fluence rate of 0.31 mW/cm² was used due to fast photolysis of NH₂Cl at 222 nm. UV₂₂₂/NH₂Cl at 50 mg Cl₂/L exhibited a 1,4-D decay rate constant at 1.7 × 10^-3 cm²/mJ, 17.2 times higher than UV₂₅₄/NH₂Cl. Far UVC at 222 nm also increased the direct photolysis rate of 1,4-D by 12-fold over LPUV. UV₂₂₂/NH₂Cl showed higher 1,4-D removal than UV₂₂₂/NHCl₂, followed by UV₂₂₂/H₂O₂. Mechanistic investigation revealed that steady-state concentrations of ^•OH and Cl₂^•- from UV₂₂₂/NH₂Cl were 12 and 31 times higher than those from UV₂₅₄/NH₂Cl, respectively. Experiments using wastewater RO permeate, RO concentrate, and tap water showed that UV₂₂₂/NH₂Cl consistently achieved efficient control of 1,4-D even in complex matrices. UV₂₂₂/NH₂Cl exhibited slightly higher or similar risk compared with UV₂₅₄/NH₂Cl in generating precursors of disinfection byproducts. Overall, KrCl* excilamps-based AOP using NH₂Cl provided efficient contaminant removal in wastewater recycling and merits further research.

基于uv的高级氧化工艺（AOP）是废水回收控制有机微污染物（如1,4-二恶烷）的关键，这些污染物仍留在反渗透渗透物中。远紫外222nm的氯化氪准分子灯（UV222）是一种很有前途的水处理光源。研究表明，与传统的254 nm （UV254）低压紫外线（LPUV）相比，远紫外线光增强了废水回收中的UV/NH2Cl。评估了其对1,4-二恶烷（1,4- d）去除、自由基稳态浓度和DBP形成的影响。由于NH2Cl在222 nm光解速度快，所以通量较低，为0.31 mW/cm2。在50 mg Cl2/L条件下，UV222/NH2Cl的衰变速率为1.7 × 10-3 cm2/mJ，是UV254/NH2Cl的17.2倍。在222 nm远紫外波段，1,4- d的直接光解速率比LPUV提高了12倍。UV222/NH2Cl对1,4- d的去除率高于UV222/NHCl2，其次是UV222/H2O2。机理研究表明，UV222/NH2Cl中•OH和Cl2•-的稳态浓度分别比UV254/NH2Cl高12倍和31倍。对废水渗透液、反渗透浓缩液和自来水进行的实验表明，UV222/NH2Cl即使在复杂基质中也能保持对1,4- d的有效控制。与UV254/NH2Cl相比，UV222/NH2Cl产生消毒副产物前体的风险略高或相似。综上所述，基于KrCl* excilamp的NH2Cl AOP在废水回收中具有高效的污染物去除效果，值得进一步研究。

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引用次数: 0

Hyperspectral species maps and LiDAR‐based structured population models show future forest fire frequency may compromise forest resilience 高光谱物种图和基于激光雷达的结构化种群模型显示，未来森林火灾的频率可能会损害森林的恢复能力

IF 5.5 2区环境科学与生态学 Q1 ECOLOGY

Remote Sensing in Ecology and Conservation

Pub Date : 2026-02-09 DOI: 10.1002/rse2.70057

Jessica McLean, Tommaso Jucker, Alice Rosen, Sean M. McMahon, Roberto Salguero‐Gómez

Forest disturbances are accelerating biodiversity loss and altering tree productivity worldwide. Post‐disturbance recovery time, a component of resilience, is critical for identifying vulnerable areas and targeting conservation but varies with environmental conditions. Monitoring recovery at scale requires tracking tree dynamics, yet traditional ground‐based approaches are resource‐intensive. We present a pipeline to parameterize integral projection models (IPMs) using LiDAR data and hyperspectral‐based species maps to assess post‐fire recovery across large, forested areas. Focusing on the fire‐adapted Picea mariana , we model passage times to reproductive heights and life expectancy under different fire regimes as indicators of recovery time. To do this, we combined hyperspectral‐based species maps and LiDAR‐based crown heights to track individual tree survival and growth at the Caribou‐Poker Creek Research Watershed (BONA) from 2017 to 2023. We incorporated fire history, aspect, slope, elevation and surrounding canopy height into our models and found partial support for their expected effects on survival and growth. Once accounting for topography and competition, we estimated passage times to reproductive maturity (11–22 years). Life expectancy in the absence of fire is shortest on North‐facing slopes with recent fire (581 years). Sensitivity analyses highlight fire history and aspect as key modulators of population resilience, with elevation exerting strong influence on life expectancy across all conditions. Our results demonstrate that remotely sensed IPMs can effectively quantify forest recovery at scale, revealing that in some contexts, stands of P. mariana may not recover between fire disturbances. We discuss the implications of these findings for advancing modelling of resilience and highlight both the challenges and opportunities of using LiDAR and hyperspectral data to build demographic models for forecasting forest dynamics.

森林干扰正在加速生物多样性的丧失，并改变世界范围内的树木生产力。干扰后恢复时间是恢复力的一个组成部分，对于确定脆弱地区和目标保护至关重要，但随着环境条件的变化而变化。大规模监测恢复需要跟踪树木动态，而传统的地面方法是资源密集型的。我们提出了一种利用激光雷达数据和基于高光谱的物种图来参数化积分投影模型（ipm）的方法，以评估大面积森林地区的火灾后恢复情况。以适应火灾的马里亚纳云杉为研究对象，我们对不同火灾条件下到达繁殖高度的时间和预期寿命作为恢复时间的指标进行了建模。为了做到这一点，我们结合了基于高光谱的物种地图和基于激光雷达的树冠高度，以跟踪2017年至2023年北美驯鹿-波克溪研究流域（BONA）的个体树木生存和生长情况。我们将火灾历史、坡向、坡度、海拔和周围冠层高度纳入我们的模型，并发现它们对生存和生长的预期影响部分支持。一旦考虑地形和竞争，我们估计到生殖成熟的传代时间（11-22年）。在没有火灾的情况下，最近发生火灾的朝北斜坡的预期寿命最短（581年）。敏感性分析强调火灾历史和地形是人口恢复力的关键调节因子，海拔高度对所有条件下的预期寿命都有很强的影响。我们的研究结果表明，遥感IPMs可以有效地量化尺度上的森林恢复，揭示在某些情况下，马里亚纳林分可能不会在火灾干扰期间恢复。我们讨论了这些发现对推进复原力建模的意义，并强调了使用激光雷达和高光谱数据建立预测森林动态的人口模型的挑战和机遇。

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引用次数: 0