Eco-Environment & Health最新文献

Distinct demethylation pathways of rice- and fish-derived methylmercury in pregnant women revealed by compound-specific isotope analysis 化合物特异性同位素分析揭示了孕妇体内大米和鱼类来源的甲基汞的不同去甲基化途径

IF 17.6

Eco-Environment & Health

Pub Date : 2025-12-24 DOI: 10.1016/j.eehl.2025.100213

Chuyan Lai , Shaochen Yang , Ruolan Li , Huifang Jiang , Rasheed Mohammed Abdul , Ping Li , Bo Wang , Xinbin Feng

Understanding mercury (Hg) metabolism and exposure pathways in pregnant women is essential for protecting fetal health. However, most previous studies have relied primarily on Hg concentrations in single biomarkers, limiting insight into in vivo metabolic differences and maternal–fetal transfer, especially regarding source-specific MeHg metabolism. This study applies compound-specific stable isotope analysis to investigate total Hg (THg) and methylmercury (MeHg) concentrations and isotopic signatures in rice and maternal biomarkers from the Wanshan Hg mining area, China. Even after remediation, THg in all cord blood samples still exceeded the U.S. EPA recommended limit. Widespread mass-dependent fractionation (MDF) was observed across different biomarkers. The MDF of THg was driven by internal redistribution and demethylation of MeHg, while the MDF of MeHg specifically reflected metabolic demethylation processes in the gut and brain. In contrast, no mass-independent fractionation (MIF) was observed during maternal or transplacental THg transfer, suggesting that Δ¹⁹⁹Hg values in maternal biomarkers reflect food-source signals. This study identifies the biomarker-specific contribution of dietary sources: MeHg isotope mixing models revealed that rice contributed a higher proportion of Hg in maternal blood than in hair, comparable to that in placenta and cord blood. Comparisons with previously reported fish-derived MeHg isotopes suggest that rice-derived MeHg undergoes preferential demethylation and elimination, highlighting the complexity of in vivo Hg dynamics. The use of both THg and MeHg isotopes in biomarkers enables more precise tracing of dietary Hg sources. These findings highlight the value of multi-biomarker isotope analysis for tracing Hg sources and improving exposure assessments.

了解孕妇的汞代谢和接触途径对保护胎儿健康至关重要。然而，大多数先前的研究主要依赖于单一生物标志物中的汞浓度，限制了对体内代谢差异和母胎转移的了解，特别是对来源特异性MeHg代谢的了解。本研究采用化合物特异性稳定同位素分析方法研究了中国万山汞矿区水稻和母系生物标志物中总汞（THg）和甲基汞（MeHg）的浓度和同位素特征。即使经过补救，所有脐带血样本中的THg仍超过美国环保署建议的限制。在不同的生物标志物中观察到广泛的质量依赖分馏（MDF）。THg的MDF由MeHg的内部再分布和去甲基化驱动，而MeHg的MDF特异性地反映了肠道和大脑的代谢性去甲基化过程。相比之下，在母体或经胎盘THg转移过程中没有观察到质量无关的分离（MIF），这表明母体生物标志物中的Δ199Hg值反映了食物来源信号。该研究确定了饮食来源对生物标志物的特异性贡献：MeHg同位素混合模型显示，水稻在母体血液中的汞含量高于头发，与胎盘和脐带血中的汞含量相当。与先前报道的鱼类来源的甲基汞同位素比较表明，水稻来源的甲基汞经历了优先的去甲基化和消除，突出了体内汞动力学的复杂性。在生物标志物中同时使用四氢汞和甲基汞同位素可以更精确地追踪饮食中汞的来源。这些发现突出了多生物标志物同位素分析在追踪汞源和改进暴露评估方面的价值。

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引用次数: 0

Association between nocturnal ozone enhancement and daily cardiovascular mortality: A multi-city study in China 夜间臭氧增强与每日心血管死亡率之间的关系：中国多城市研究

IF 17.6

Eco-Environment & Health

Pub Date : 2025-12-24 DOI: 10.1016/j.eehl.2025.100211

Zhihan Jian , Peng Yin , Renjie Chen , Lijun Wang , Yixiang Zhu , Xia Meng , Haidong Kan , Yue Niu , Maigeng Zhou

The health effects of ambient ozone (O₃) pollution have been well documented, but most studies have focused on daytime exposure, with limited research on nighttime O₃. Nocturnal O₃ enhancement (NOE) refers to unexpected increases in nighttime O₃ concentrations over a few hours, yet the health effects of this phenomenon remain unknown. This study evaluated the short-term association between NOE days and cardiovascular mortality by conducting a multi-city time-series analysis in China (2013–2015). Nine definitions were adopted to identify site-level NOE events, considering both average O₃ levels and peak increments at night. A city-level NOE day was defined as a day when over 60% of the monitoring stations within a city recorded at least one site-level NOE event. City-level associations were analyzed using over-dispersed generalized additive models, and national estimates were pooled using meta-analysis. We also conducted stratified analyses by age, sex, season, and region. We found significant associations between NOE days and increased mortality due to total cardiovascular disease (CVD) and coronary heart disease (CHD). Under the strictest NOE definition, mortality risk increased by 1.7% (95% CI: 0.8%, 2.5%) for total CVD and 2.1% (95% CI: 0.9%, 3.3%) for CHD on the day after NOE. Relatively higher risk estimates were found in individuals aged 5–64 years, females, the warm season, and the southern region. No stable associations were found with stroke mortality. These findings offer new insights into the health impacts of NOE and underscore the need for time-phased actions to control both daytime and nighttime O₃ air pollution.

环境臭氧（O3）污染对健康的影响已经有了很好的记录，但大多数研究都集中在白天，对夜间臭氧的研究有限。夜间臭氧增强（NOE）是指夜间臭氧浓度在几个小时内意外增加，但这种现象对健康的影响尚不清楚。本研究通过对中国多个城市（2013-2015）的时间序列分析，评估了NOE天数与心血管死亡率之间的短期关联。采用了9种定义来确定站点级别的NOE事件，同时考虑了平均O3水平和夜间峰值增量。城市NOE日定义为城市内60%以上的监测站记录到至少一次站点级NOE事件的一天。城市水平的关联使用过分散的广义相加模型进行分析，国家估计使用荟萃分析进行汇总。我们还按年龄、性别、季节和地区进行了分层分析。我们发现NOE天数与总心血管疾病（CVD）和冠心病（CHD）导致的死亡率增加之间存在显著关联。在最严格的NOE定义下，在NOE后的第二天，总心血管疾病的死亡风险增加1.7% (95% CI: 0.8%, 2.5%)，冠心病的死亡风险增加2.1% （95% CI: 0.9%, 3.3%）。在5-64岁、女性、温暖季节和南部地区的个体中发现相对较高的风险估计值。未发现与中风死亡率有稳定的联系。这些发现为NOE对健康的影响提供了新的见解，并强调需要采取分阶段的行动来控制白天和夜间的O3空气污染。

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引用次数: 0

Cross-regional dynamics of antibiotic resistance (AR): Genomic evidence of transmission for Escherichia coli carrying last-resort AR gene between food animals and humans in China 抗生素耐药性的跨区域动态：携带最后手段AR基因的大肠杆菌在中国食用动物和人类之间传播的基因组证据

IF 17.6

Eco-Environment & Health

Pub Date : 2025-12-24 DOI: 10.1016/j.eehl.2025.100212

Jie Hou , Ye Li , Qinglin Chen , Mengqi Liu , Yi An , Fengxia Yang , Yanpo Yao

The rapidly increasing dissemination of antibiotic-resistant bacteria (ARB) among food animals and humans is a burgeoning public health crisis. Yet, our understanding of ARB transmission is largely constrained to regional studies, with a dearth of insights into cross-regional dynamics. In this study, the whole-genome sequences of >800 E. coli strains harboring last-resort antibiotic resistance genes (LARGs) across 20 regions of China were retrieved from the NCBI RefSeq database. Our analysis uncovered that 1767 human–animal isolate pairs exhibited high homology, with the pairwise average nucleotide identity (ANI) values exceeding 99.5%. By employing phylogenetic analysis, transmission cluster identification, ANI, and single-nucleotide polymorphism (SNP) analysis, 42 human–animal transmission clusters and 306 recent transmission events were identified. Strikingly, more than 90% of these human–animal transmission events (284 out of 306) spanned different regions. Counterfactual analysis indicated that the cross-regional transmission significantly contributes to the prevalence of these ARBs in humans (21.62%), while its role in the food-animal epidemic is less pronounced (3.47%). Our findings underscore the urgency of a more integrated, nationwide approach to address the spread of LARG-harboring bacteria, which is essential to preserving the efficacy of our remaining antibiotic arsenal and safeguarding public health on a global scale.

抗生素耐药菌（ARB）在食用动物和人类中的迅速传播是一个新兴的公共卫生危机。然而，我们对ARB传播的理解主要局限于区域研究，缺乏对跨区域动态的了解。本研究从NCBI RefSeq数据库中检索了中国20个地区的800株携带最后抗生素耐药基因（LARGs）的大肠杆菌的全基因组序列。分析发现，1767对人兽分离物具有高度同源性，对平均核苷酸同源性（ANI）值超过99.5%。通过系统发育分析、传播聚类鉴定、ANI和单核苷酸多态性（SNP）分析，共鉴定出42个人-动物传播聚类和306个近期传播事件。引人注目的是，这些人-动物传播事件中有90%以上（306例中有284例）跨越了不同地区。反事实分析表明，跨区域传播对这些arb在人类中的流行有显著贡献（21.62%），而在食源性动物流行中的作用不太明显（3.47%）。我们的研究结果强调了一种更综合的、全国性的方法来解决携带lang细菌的传播的紧迫性，这对于保持我们剩余的抗生素武器库的效力和在全球范围内保障公众健康至关重要。

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引用次数: 0

Serum perfluoroalkyl and polyfluoroalkyl substances and the risk of cardiometabolic diseases: Unraveling the mediating role of inflammatory markers 血清全氟烷基和多氟烷基物质与心脏代谢疾病的风险：揭示炎症标志物的介导作用

IF 17.6

Eco-Environment & Health

Pub Date : 2025-12-24 DOI: 10.1016/j.eehl.2025.100210

Yongbin Zhao , Huijun Wang , Yanzhen Hu , Zongyao Li , Xi Kang , Chang Su , Zhenyu Wu , Tao Zhang , Aidong Liu

The persistence and biotoxicity of perfluoroalkyl and polyfluoroalkyl substances (PFASs) have raised concerns about cardiometabolic diseases (CMDs). Inflammation is thought to underlie the pathology of various CMDs. We aimed to comprehensively assess the risk of CMDs associated with PFASs and quantify the mediating effects of two kinds of inflammatory markers. Nine PFASs, a direct marker (high-sensitivity C-reactive protein [hs-CRP]), and an indirect marker (serum ferritin [SF]) were analyzed. A total of 12 CMDs of five types were defined based on 15 cardiometabolic biomarkers. The PFAS mixture had significant adverse effects on hypercholesterolemia (HC; OR = 1.20, 95% CI: 1.03–1.39), high low-density lipoprotein cholesterol (high LDL-C; OR = 1.13, 95% CI: 1.01–1.30), hypertension (OR = 1.10, 95% CI: 1.03–1.19), and hyperuricemia (OR = 1.31, 95% CI: 1.16–1.48) in the quantile-based g-computation (QGC) model, with PFNA and PFTrDA contributing the most. PFHxS was found to significantly impact all five types of CMDs simultaneously. The exposure-response analysis exhibited complex nonlinear patterns, with significant heterogeneity across diseases. Both inflammatory markers significantly mediated the effects of multiple PFASs on CMDs, with SF contributing a higher proportion of the mediating effects for obesity, dyslipidemia, and hyperuricemia. The highest mediation proportion reached 85.78% for abdominal obesity (FDR = 0.024). These results suggest that inflammation may serve as a key pathological mechanism linking PFAS exposure to CMDs, highlighting the potential value of SF as an iron status and indirect inflammatory marker in assessing PFAS-related cardiometabolic health risks.

全氟烷基和多氟烷基物质（PFASs）的持久性和生物毒性引起了人们对心脏代谢疾病（CMDs）的关注。炎症被认为是各种CMDs病理的基础。我们旨在全面评估与PFASs相关的cmd风险，并量化两种炎症标志物的介导作用。分析9种PFASs、直接标志物（高敏c反应蛋白[hs-CRP]）和间接标志物（血清铁蛋白[SF]）。基于15种心脏代谢生物标志物，共定义了5种类型的12种cmd。在基于分位数的g计算（QGC）模型中，PFAS混合物对高胆固醇血症（HC; OR = 1.20, 95% CI: 1.03-1.39）、高低密度脂蛋白胆固醇（高LDL-C； OR = 1.13, 95% CI: 1.01-1.30）、高血压（OR = 1.10, 95% CI: 1.03-1.19）和高尿酸血症（OR = 1.31, 95% CI: 1.16-1.48）有显著的不良影响，其中PFNA和PFTrDA贡献最大。发现PFHxS同时显著影响所有五种类型的cmd。暴露-反应分析显示出复杂的非线性模式，在不同疾病之间具有显著的异质性。这两种炎症标志物都能显著介导多种PFASs对cmd的影响，其中SF对肥胖、血脂异常和高尿酸血症的介导作用比例更高。腹型肥胖的中介比例最高，达85.78% （FDR = 0.024）。这些结果表明，炎症可能是连接PFAS暴露与cmd的关键病理机制，突出了SF作为铁状态和间接炎症标志物在评估PFAS相关心脏代谢健康风险中的潜在价值。

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引用次数: 0

Integrated global assessment of Escherichia coli emissions from wastewater treatment plants 污水处理厂大肠杆菌排放的综合全球评估

IF 17.6

Eco-Environment & Health

Pub Date : 2025-12-16 DOI: 10.1016/j.eehl.2025.100209

Wen Li , Qingbin Yuan , Xiaolong Wang , Wei Wang , Xinda Wu , Yanxu Zhang , Xiaoli Zhao , Yi Luo , Fengchang Wu

Wastewater treatment plants (WWTPs) are critical for mitigating anthropogenic contaminants, yet their effectiveness in controlling waterborne pathogens has not been assessed globally. This study presents the first global assessment of Escherichia coli (E. coli) emissions from 58,502 WWTPs across 188 countries and territories, utilizing a CatBoost machine learning model based on actual data from 230 facilities. Our results reveal pervasive E. coli contamination in global WWTP effluents, with a median concentration of 3.83 log Most Probable Number (MPN)/100 mL (range: 0–5.86 log MPN/100 mL), and 78.3% of WWTPs exceeding 3 log MPN/100 mL, particularly in Africa, South America, and Southeast Asia. The primary driver of this contamination is insufficient disinfection coverage, which is closely linked to the lack of enforceable microbial discharge standards rather than the development level alone. Furthermore, E. coli emissions from WWTPs compromise the microbial quality of downstream drinking and recreational waters, posing serious public health threats. To address this gap, we propose Human Development Index (HDI)-stratified E. coli discharge standards based on reverse risk modeling aligned with WHO health-based targets. Scenario analyses indicate that combining these risk-informed thresholds with targeted disinfection upgrades could reduce global non-compliance of WWTPs by 47% for drinking water and 58% for recreational water exposure, with the greatest benefits in regions with limited infrastructure. This study provides the first global, health-based framework for microbial water quality management in WWTPs, offering actionable guidance to reduce inequities in waterborne disease risk and improve global water safety.

污水处理厂（WWTPs）对于减轻人为污染物至关重要，但其在控制水传播病原体方面的有效性尚未在全球范围内得到评估。本研究首次对188个国家和地区的58,502个污水处理厂的大肠杆菌（E. coli）排放进行了全球评估，利用基于230个设施实际数据的CatBoost机器学习模型。我们的研究结果显示，全球污水处理厂流出物中普遍存在大肠杆菌污染，中位浓度为3.83 log最可能数(MPN)/100 mL（范围：0-5.86 log MPN/100 mL）， 78.3%的污水处理厂超过3 log MPN/100 mL，特别是在非洲、南美洲和东南亚。造成这种污染的主要原因是消毒覆盖率不足，这与缺乏可执行的微生物排放标准密切相关，而不仅仅是发展水平。此外，污水处理厂排放的大肠杆菌损害了下游饮用水和娱乐用水的微生物质量，对公众健康构成严重威胁。为了解决这一差距，我们提出了人类发展指数（HDI）分层大肠杆菌排放标准，该标准基于与世卫组织健康目标一致的反向风险模型。情景分析表明，将这些风险知情阈值与有针对性的消毒升级相结合，可使全球饮用水和娱乐用水不合规率分别降低47%和58%，在基础设施有限的地区效益最大。这项研究为污水处理厂的微生物水质管理提供了第一个全球性的、基于健康的框架，为减少水传播疾病风险的不平等和改善全球水安全提供了可操作的指导。

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引用次数: 0

Metal–organic frameworks: Magic building blocks and revolutionary material architectures 金属有机框架：神奇的构建模块和革命性的材料架构

IF 17.6

Eco-Environment & Health

Pub Date : 2025-12-01 DOI: 10.1016/j.eehl.2025.100200

Bing Han , Xishi Tai , Xiangke Wang

引用次数: 0

Micro-nano-bubble ozonation enhanced thiamethoxam mineralization and toxicity alleviation in wastewater 微纳泡臭氧化增强了废水中噻虫嗪的矿化和毒性缓解

IF 17.6

Eco-Environment & Health

Pub Date : 2025-12-01 DOI: 10.1016/j.eehl.2025.100202

Xiuwen Li , Yizhou Wu , Manyi Chen , Ting Rui , Peng Shi , Feng Yang , Zepeng Zhang , Min Hu , Feng Zhang , Xiankun Wu , Qing Zhou , Aimin Li

Neonicotinoid insecticides (NNIs), including thiamethoxam (TMX), clothianidin, and imidacloprid, are widely used in agriculture to control pests. Consequently, they have been frequently detected in wastewater, posing significant ecotoxicological risks. Conventional ozonation is widely applied for NNI removal but is limited by low mineralization efficiency and high effluent toxicity. However, the mechanisms of the performance limitations and increased toxicity remain unclear, hindering the effective application of ozonation in wastewater treatment. This study constructed a novel micro-nano-bubble ozonation (MNB-O₃) system, which enhanced the degradation rate of TMX, a representative NNI, by 34.7% and the mineralization efficiency by 176.5%, compared to conventional bubble ozonation (CB-O₃). MNB-O₃ also significantly reduced both acute toxicity and neurotoxicity in the ozonated effluents, addressing the issue of high toxicity associated with CB-O₃. Mechanistically, the formation of hydroxyl radicals (·OH) and singlet oxygen (¹O₂) increased substantially and was identified as the primary contributor to TMX degradation. Transformation product (TP) analysis revealed that formaldehyde and acetaldehyde were the key contributors to effluent toxicity, both accumulating in the CB-O₃ effluent. In contrast, MNB-O₃ achieved significant reductions in formaldehyde (87.4%) and acetaldehyde (34.6%) concentrations, substantially lowering effluent toxicity. Furthermore, a large-scale MNB-O₃ application demonstrated excellent performance in removing NNIs and reducing toxicity. This study provides valuable insights into the mechanisms underlying toxicity reduction in MNB-O₃ and highlights its potential for low-carbon wastewater treatment. By addressing the limitations of CB-O₃ and reducing the NNIs-related environmental risks, MNB-O₃ represents a promising advancement in the field of wastewater treatment.

新烟碱类杀虫剂（NNIs）广泛用于农业害虫防治，包括噻虫嗪（TMX）、噻虫胺（clothianidin）和吡虫啉。因此，它们经常在废水中被检测到，构成重大的生态毒理学风险。常规臭氧氧化法在NNI脱除中得到了广泛应用，但存在矿化效率低、出水毒性大的问题。然而，臭氧氧化的性能限制和毒性增加的机制尚不清楚，阻碍了臭氧氧化在废水处理中的有效应用。本研究构建了一种新型微纳气泡臭氧化（MNB-O3）体系，与常规气泡臭氧化（CB-O3）相比，该体系对具有代表性的NNI TMX的降解率提高了34.7%，矿化效率提高了176.5%。MNB-O3还显著降低了臭氧化废水中的急性毒性和神经毒性，解决了与CB-O3相关的高毒性问题。机制上，羟基自由基（·OH）和单线态氧（1O2）的形成显著增加，被认为是TMX降解的主要因素。转化产物（TP）分析表明，甲醛和乙醛是出水毒性的主要贡献者，两者都在CB-O3出水中积累。相比之下，MNB-O3显著降低了甲醛（87.4%）和乙醛（34.6%）浓度，大大降低了出水毒性。此外，大规模应用MNB-O3在去除NNIs和降低毒性方面表现出优异的性能。该研究为MNB-O3毒性降低的机制提供了有价值的见解，并强调了其在低碳废水处理中的潜力。通过解决CB-O3的局限性和降低nnis相关的环境风险，MNB-O3在废水处理领域代表了一个有希望的进展。

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引用次数: 0

Bacteria-inoculated biochar boosts copper immobilization and carbon sequestration via microbial restructuring and pH regulation 细菌接种的生物炭通过微生物重组和pH调节促进铜的固定和碳的固存

IF 17.6

Eco-Environment & Health

Pub Date : 2025-12-01 DOI: 10.1016/j.eehl.2025.100201

Leizhen Rao , Lingya Kong , Lina Wang , Lu Yang , Ying Liu , Shaopo Deng , Jing Wei

Intensive agriculture aggravates soil acidification and heavy metal contamination. Biochar and its composites are cost-effective, carbon-rich amendments that can influence both heavy metal and soil carbon cycling, yet their synergistic mechanisms remain unclear. In this study, a combination of the diffusive gradient in thin films (DGT) technique, Fourier-transform ion cyclotron resonance mass spectrometry (FT-ICR MS), and high-throughput sequencing was applied to investigate the effects of various biochar-based amendments: plain biochar, bacteria-inoculated biochar, and biochar combined with oyster shell powder on copper (Cu) stabilization and carbon dynamics in acidic orchard soils. All amendments significantly raised soil pH (by 1.03–2.54 units) and organic matter content, while reducing bioavailable Cu (DGT-Cu) by 60%–73%. Bacteria-inoculated biochar exhibited superior performance, lowering microbial metabolic quotient (qCO₂) by 44%, enriching functional microbial taxa (e.g., Bacillus spp., by 7-fold), and enhancing soil enzyme activity. These shifts coincided with an 8% decrease in recalcitrant compounds (e.g., lignin, tannin) and a 6% increase in labile protein/lipid fractions of dissolved organic matter (DOM), indicating accelerated microbial turnover of stable carbon pools. Statistical analyses indicated that Cu bioavailability was primarily controlled by soil properties (e.g., pH), while qCO₂ was mainly driven by microbial traits like community structure and microbial biomass carbon. Notably, pH also indirectly shapes microbial processes. This study reveals a mechanistic linkage between Cu immobilization and carbon sequestration, highlighting the dual regulatory role of soil properties and microbial processes. These findings provide new insights into the ecological restoration and sustainable management of contaminated agricultural soils.

集约化农业加剧了土壤酸化和重金属污染。生物炭及其复合材料是具有成本效益的富碳修正物，可以影响重金属和土壤碳循环，但其协同机制尚不清楚。本研究采用薄膜扩散梯度（DGT）技术、傅里叶变换离子回旋共振质谱（FT-ICR MS）和高通量测序相结合的方法，研究了不同生物炭基改性剂：普通生物炭、细菌接种生物炭和生物炭与牡蛎壳粉复合对酸性果园土壤中铜（Cu）稳定和碳动态的影响。所有修正均显著提高土壤pH值（1.03 ~ 2.54单位）和有机质含量，降低生物有效铜（DGT-Cu） 60% ~ 73%。细菌接种的生物炭表现出优异的性能，降低了44%的微生物代谢商（qCO2），丰富了7倍的功能微生物类群（如芽孢杆菌），提高了土壤酶活性。这些变化与顽固性化合物（如木质素、单宁）减少8%和溶解有机物（DOM）的不稳定蛋白质/脂质部分增加6%同时发生，表明稳定碳库的微生物周转加速。统计分析表明，Cu的生物有效性主要受土壤性质（如pH）的控制，而qCO2主要受群落结构和微生物生物量碳等微生物性状的控制。值得注意的是，pH值也间接影响微生物的过程。该研究揭示了铜固定与碳固存之间的机制联系，强调了土壤性质和微生物过程的双重调节作用。这些发现为污染农业土壤的生态恢复和可持续管理提供了新的见解。

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引用次数: 0

Data-driven assessment of air quality and health benefits from future shipping emission controls in coastal China 数据驱动评估中国沿海地区未来船舶排放控制对空气质量和健康的益处

IF 17.6

Eco-Environment & Health

Pub Date : 2025-12-01 DOI: 10.1016/j.eehl.2025.100203

Zhenyu Luo, Zhaofeng Lv, Tingkun He, Wen Yi, Yongyue Wang, Kebin He, Huan Liu

The lack of toolkits for assessing the shipping-related atmospheric impacts limits China's ability to formulate effective shipping emissions control policies to address coastal air pollution and mitigate related health burdens. Here, we developed a deep learning model, DeepShip, to efficiently predict shipping-related PM_2.5 concentrations and further coupled it with a multi-task learning and generative-adversarial training strategy to enhance the sensitivity of the data-driven model to variations in small emission sources. Based on DeepShip, we comprehensively analyzed the response of shipping-related PM_2.5 to changes in anthropogenic emissions based on 210 scenarios involving emission reductions of shipping and land-based sectors. Furthermore, sulfur and nitrogen emission control scenarios that China might implement in the future were established to assess their cost, air quality improvement, and health benefits. We found that shipping-related PM_2.5 shows an almost linear relationship with shipping emissions, while exhibiting a nonlinear relationship with land-based emissions. Considering the cost and environmental-health benefits, future shipping emissions control should prioritize progressively enhancing the NO_x emission standard while coordinating with land-based emission reductions.

缺乏评估航运相关大气影响的工具包，限制了中国制定有效的航运排放控制政策以解决沿海空气污染和减轻相关健康负担的能力。在这里，我们开发了一个深度学习模型DeepShip，以有效地预测与航运相关的PM2.5浓度，并进一步将其与多任务学习和生成对抗训练策略相结合，以提高数据驱动模型对小排放源变化的敏感性。基于DeepShip，我们基于210种涉及航运和陆基部门减排的情景，综合分析了航运相关PM2.5对人为排放变化的响应。此外，还建立了中国未来可能实施的硫和氮排放控制情景，以评估其成本、空气质量改善和健康效益。我们发现，与航运相关的PM2.5与航运排放几乎呈线性关系，而与陆地排放呈非线性关系。考虑到成本和环境健康效益，未来的船舶排放控制应优先考虑逐步提高氮氧化物排放标准，同时与陆地减排相协调。

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引用次数: 0

A threat to our sustainable future is hiding on our winter roads 对我们可持续发展的未来的威胁正隐藏在我们的冬季道路上

IF 17.6

Eco-Environment & Health

Pub Date : 2025-11-24 DOI: 10.1016/j.eehl.2025.100204

Jingzhe Wang , Xuankai Ma , Nan Xu

引用次数: 0