Environmental Research最新文献_第6页

Exposure trends of neonicotinoids from 2008 to 2018 and health risk in a longitudinal study in China 2008 - 2018年中国新烟碱类暴露趋势与健康风险的纵向研究

IF 7.7 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Research

Pub Date : 2026-03-15 Epub Date: 2026-01-19 DOI: 10.1016/j.envres.2026.123820

Jiazhen Zhang , Hong Guo , Lin Liu , Jinglan Ma , Jiao Zou , Zhengyang Xiao , Zhewen Li , Yunqi Luo , Caizheng Yu , Meian He

Background

Neonicotinoids (NNIs) are one of the most widely used insecticides in the world, yet researches on the exposure trends and health risks of NNIs are still limited.

Objectives

To explore the decadal exposure trend and health risk of NNIs in a longitudinal study based on the Dongfeng-Tongji cohort.

Methods

Participants in the present study (a total of 216 individuals) were drawn from the Dongfeng-Tongji cohort. We measured serum levels of 10 neonicotinoid parent compounds and 3 metabolites at three time points (2008, 2013, and 2018). Linear mixed effect models were used to investigate trends in NNIs concentrations over time. Hazard quotients (HQs) were calculated based on NNIs exposure levels to assess health risks. Latent class trajectory analysis was employed to identify distinct exposure trajectories for NNIs.

Results

The detection rates and exposure levels of NNIs showed a significant increase over decade (all P < 0.001). Only IMI and N-ACE achieved a detection rate exceeding 65 % at each survey, and N-ACE was the predominant NNI. HQs were all well below 1, but showed a significant upward trend over time (all P < 0.05). The trajectories of IMI could be divided into four groups, with age and body mass index potentially influencing grouping.

Conclusions

This study explored time trend of NNIs and associated health risks. It provided crucial scientific evidence for protecting environmental and public health, as well as for formulating health policies.

背景：新烟碱类杀虫剂是世界上使用最广泛的杀虫剂之一，但对新烟碱类杀虫剂的暴露趋势和健康风险的研究仍然有限。目的：通过东风-同济纵向队列研究，探讨NNIs的年代际暴露趋势及健康风险。方法：本研究的参与者（共216人）来自东风-同济队列。我们在三个时间点（2008年、2013年和2018年）测量了10种新烟碱类母体化合物和3种代谢物的血清水平。线性混合效应模型用于研究NNIs浓度随时间的变化趋势。危害商数（HQs）是根据NNIs暴露水平计算的，以评估健康风险。潜在类别轨迹分析用于确定NNIs的不同暴露轨迹。结果：近十年来NNIs的检出率和暴露水平呈显著上升趋势（p < 0.05）。结论：本研究探讨了NNIs的时间趋势和相关健康风险。它为保护环境和公众健康以及制定卫生政策提供了重要的科学证据。

{"title":"Exposure trends of neonicotinoids from 2008 to 2018 and health risk in a longitudinal study in China","authors":"Jiazhen Zhang , Hong Guo , Lin Liu , Jinglan Ma , Jiao Zou , Zhengyang Xiao , Zhewen Li , Yunqi Luo , Caizheng Yu , Meian He","doi":"10.1016/j.envres.2026.123820","DOIUrl":"10.1016/j.envres.2026.123820","url":null,"abstract":"<div><h3>Background</h3><div>Neonicotinoids (NNIs) are one of the most widely used insecticides in the world, yet researches on the exposure trends and health risks of NNIs are still limited.</div></div><div><h3>Objectives</h3><div>To explore the decadal exposure trend and health risk of NNIs in a longitudinal study based on the Dongfeng-Tongji cohort.</div></div><div><h3>Methods</h3><div>Participants in the present study (a total of 216 individuals) were drawn from the Dongfeng-Tongji cohort. We measured serum levels of 10 neonicotinoid parent compounds and 3 metabolites at three time points (2008, 2013, and 2018). Linear mixed effect models were used to investigate trends in NNIs concentrations over time. Hazard quotients (HQs) were calculated based on NNIs exposure levels to assess health risks. Latent class trajectory analysis was employed to identify distinct exposure trajectories for NNIs.</div></div><div><h3>Results</h3><div>The detection rates and exposure levels of NNIs showed a significant increase over decade (all <em>P</em> < 0.001). Only IMI and N-ACE achieved a detection rate exceeding 65 % at each survey, and N-ACE was the predominant NNI. HQs were all well below 1, but showed a significant upward trend over time (all <em>P</em> < 0.05). The trajectories of IMI could be divided into four groups, with age and body mass index potentially influencing grouping.</div></div><div><h3>Conclusions</h3><div>This study explored time trend of NNIs and associated health risks. It provided crucial scientific evidence for protecting environmental and public health, as well as for formulating health policies.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"293 ","pages":"Article 123820"},"PeriodicalIF":7.7,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146016959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Engineering immobilized microbes with surface-displayed cold-adapted nitroreductase: An efficient strategy for nitrobenzene degradation at low temperature 用表面显示的冷适应硝基苯酶工程固定化微生物：一种低温降解硝基苯的有效策略。

IF 7.7 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Research

Pub Date : 2026-03-15 Epub Date: 2026-02-07 DOI: 10.1016/j.envres.2026.123985

Yanhua Hou, Yujie Li, Yifan Zou, Yatong Wang, Quanfu Wang

Nitrobenzene (NB), a typical example of aromatic nitro compounds, has become a significant pollutant because its wastewater is difficult to degrade in low-temperature environments. This study constructed an engineered strain displaying a cold-adapted nitroreductase (PsNTR) for enhanced low-temperature degradation efficiency, employing a cell surface display system in which the N-terminal domain of the ice nucleation protein (INPN) served as the anchoring carrier. SDS-PAGE, Western blot analysis, and protease accessibility assays confirmed that the INPN-PsNTR fusion protein (55.40 kDa) was stably expressed and displayed on the surface of Escherichia coli. The engineered strain BL21/INPN-PsNTR maintained outer membrane integrity and exhibited robust growth during the display process. To further enhance the storage stability and reusability of the engineered strain for practical applications, it was immobilized using modified diatomite (DA-PEI/GA). Notably, PsNTR@DA-PEI/GA demonstrated high efficiency in degrading NB at low temperatures, with a degradation rate of 92.75% for 500 mg/L NB within 120 h at 15 °C. In summary, this study employed PsNTR surface display technology as the core strategy, combined with a cell immobilization approach, to establish a novel and promising technological pathway for efficient and green degradation of NB at low temperatures, thereby offering a new strategy for the remediation of NB contamination.

硝基苯（Nitrobenzene， NB）是一种典型的芳香硝基化合物，其废水在低温环境下难以降解，已成为一种重要的污染物。本研究利用以冰核蛋白（INPN）的n端结构域作为锚定载体的细胞表面展示系统，构建了一种显示冷适应硝基还原酶（PsNTR）的工程菌株，以提高低温降解效率。SDS-PAGE、Western blot分析和蛋白酶接近性实验证实，INPN-PsNTR融合蛋白（55.40 kDa）在大肠杆菌表面稳定表达和显示。工程菌株BL21/INPN-PsNTR在展示过程中保持了外膜的完整性，并表现出强劲的生长。为了进一步提高工程菌株在实际应用中的储存稳定性和可重复使用性，采用改性硅藻土（DA-PEI/GA）对其进行固定化。值得注意的是，PsNTR@DA-PEI/GA在低温下对NB的降解效率很高，在15℃下，对500 mg/L NB在120小时内的降解率为92.75%。综上所述，本研究以PsNTR表面显示技术为核心策略，结合细胞固定化方法，建立了低温高效绿色降解铌的新技术途径，为铌污染的修复提供了新的策略。

{"title":"Engineering immobilized microbes with surface-displayed cold-adapted nitroreductase: An efficient strategy for nitrobenzene degradation at low temperature","authors":"Yanhua Hou, Yujie Li, Yifan Zou, Yatong Wang, Quanfu Wang","doi":"10.1016/j.envres.2026.123985","DOIUrl":"10.1016/j.envres.2026.123985","url":null,"abstract":"<div><div>Nitrobenzene (NB), a typical example of aromatic nitro compounds, has become a significant pollutant because its wastewater is difficult to degrade in low-temperature environments. This study constructed an engineered strain displaying a cold-adapted nitroreductase (PsNTR) for enhanced low-temperature degradation efficiency, employing a cell surface display system in which the N-terminal domain of the ice nucleation protein (INPN) served as the anchoring carrier. SDS-PAGE, Western blot analysis, and protease accessibility assays confirmed that the INPN-PsNTR fusion protein (55.40 kDa) was stably expressed and displayed on the surface of <em>Escherichia coli</em>. The engineered strain BL21/INPN-PsNTR maintained outer membrane integrity and exhibited robust growth during the display process. To further enhance the storage stability and reusability of the engineered strain for practical applications, it was immobilized using modified diatomite (DA-PEI/GA). Notably, PsNTR@DA-PEI/GA demonstrated high efficiency in degrading NB at low temperatures, with a degradation rate of 92.75% for 500 mg/L NB within 120 h at 15 °C. In summary, this study employed PsNTR surface display technology as the core strategy, combined with a cell immobilization approach, to establish a novel and promising technological pathway for efficient and green degradation of NB at low temperatures, thereby offering a new strategy for the remediation of NB contamination.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"295 ","pages":"Article 123985"},"PeriodicalIF":7.7,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146148643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

pH-regulated hydrolysis strategy for the construction of stable Co3O4/NC@BC composite catalyst for antibiotic degradation in water systems ph调节水解策略构建稳定的Co3O4/NC@BC复合催化剂用于水系统抗生素降解

IF 7.7 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Research

Pub Date : 2026-03-15 Epub Date: 2026-02-01 DOI: 10.1016/j.envres.2026.123929

Zi-Yan Yu , Guang-Hong Zhao , Chao Liu , Yuan Wei , Yu-Hui Gao , Huai-De Liu , Yu-Lan Zhang , Yan-Yan Jiang , Gao-Feng Shi , Guo-Ying Wang

The practical application of peroxymonosulfate (PMS) in water remediation is contingent on developing stable and highly efficient catalysts. Conventional cobalt-based catalysts, however, often suffer from active site agglomeration, sluggish electron transfer, and poor cycling stability, which hinder their scalability. To address these limitations, we engineered a composite of Co₃O₄ nanosheets anchored on nitrogen-doped carbon and highly graphitized biochar (Co₃O₄/NC@BC). This was achieved through a pH-regulated hydrolysis of ZIF-67/BC precursors into a layered Co(OH)₂/NC@BC intermediate, followed by calcination. This unique configuration not only exposes abundant active sites but also facilitates electron transfer and mitigates Co₃O₄ agglomeration via the conductive BC network. The optimized catalyst demonstrated exceptional performance, achieving 98.91% removal of ciprofloxacin (CIP) within 60 min, alongside robust anti-interference capability and reusability. Mechanistic studies revealed that both radical (SO₄⁻• and •OH) and non-radical (¹O₂ and electron transfer) pathways contribute to CIP degradation. Assessment by the Ecological Structure-Activity Relationship (ECOSAR) model indicated a significant reduction in the acute and chronic toxicity of the degradation intermediates compared to the parent CIP. This work provides a strategic design for high-performance cobalt-based catalysts and underscores the application potential of the Co₃O₄/NC@BC composite for mitigating antibiotic contamination.

过氧单硫酸根（PMS）在水修复中的实际应用取决于开发出稳定、高效的催化剂。然而，传统的钴基催化剂往往存在活性位点团聚、电子转移缓慢、循环稳定性差等问题，阻碍了其可扩展性。为了解决这些限制，我们设计了一种将Co3O4纳米片固定在氮掺杂碳和高度石墨化的生物炭上的复合材料（Co3O4/NC@BC）。这是通过ph调节的ZIF-67/BC前体水解成层状Co(OH)2/NC@BC中间体，然后煅烧实现的。这种独特的结构不仅暴露了丰富的活性位点，而且通过导电BC网络促进电子转移和减轻Co3O4团聚。优化后的催化剂表现出优异的性能，在60分钟内达到98.91%的环丙沙星（CIP）去除率，同时具有强大的抗干扰能力和可重复使用性。机理研究表明，自由基（SO4-•和•OH）和非自由基（1O2和电子转移）途径都有助于CIP降解。生态结构-活性关系（ECOSAR）模型评估表明，与母体CIP相比，降解中间体的急性和慢性毒性显著降低。这项工作为高性能钴基催化剂提供了一种战略设计，并强调了Co3O4/NC@BC复合材料在减轻抗生素污染方面的应用潜力。

{"title":"pH-regulated hydrolysis strategy for the construction of stable Co3O4/NC@BC composite catalyst for antibiotic degradation in water systems","authors":"Zi-Yan Yu , Guang-Hong Zhao , Chao Liu , Yuan Wei , Yu-Hui Gao , Huai-De Liu , Yu-Lan Zhang , Yan-Yan Jiang , Gao-Feng Shi , Guo-Ying Wang","doi":"10.1016/j.envres.2026.123929","DOIUrl":"10.1016/j.envres.2026.123929","url":null,"abstract":"<div><div>The practical application of peroxymonosulfate (PMS) in water remediation is contingent on developing stable and highly efficient catalysts. Conventional cobalt-based catalysts, however, often suffer from active site agglomeration, sluggish electron transfer, and poor cycling stability, which hinder their scalability. To address these limitations, we engineered a composite of Co<sub>3</sub>O<sub>4</sub> nanosheets anchored on nitrogen-doped carbon and highly graphitized biochar (Co<sub>3</sub>O<sub>4</sub>/NC@BC). This was achieved through a pH-regulated hydrolysis of ZIF-67/BC precursors into a layered Co(OH)<sub>2</sub>/NC@BC intermediate, followed by calcination. This unique configuration not only exposes abundant active sites but also facilitates electron transfer and mitigates Co<sub>3</sub>O<sub>4</sub> agglomeration via the conductive BC network. The optimized catalyst demonstrated exceptional performance, achieving 98.91% removal of ciprofloxacin (CIP) within 60 min, alongside robust anti-interference capability and reusability. Mechanistic studies revealed that both radical (SO<sub>4</sub><sup>−</sup>• and •OH) and non-radical (<sup>1</sup>O<sub>2</sub> and electron transfer) pathways contribute to CIP degradation. Assessment by the Ecological Structure-Activity Relationship (ECOSAR) model indicated a significant reduction in the acute and chronic toxicity of the degradation intermediates compared to the parent CIP. This work provides a strategic design for high-performance cobalt-based catalysts and underscores the application potential of the Co<sub>3</sub>O<sub>4</sub>/NC@BC composite for mitigating antibiotic contamination.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"295 ","pages":"Article 123929"},"PeriodicalIF":7.7,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146111584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Atmospheric deposition and co-occurrence patterns of organophosphate flame retardants (OPFRs) and perfluorooctanoic acid (PFOA) in urban snow 城市积雪中有机磷酸盐阻燃剂（OPFRs）和全氟辛酸（PFOA）的大气沉降和共现模式

IF 7.7 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Research

Pub Date : 2026-03-15 Epub Date: 2026-01-30 DOI: 10.1016/j.envres.2026.123924

Florentina Laura Chiriac, Vasile Ion Iancu, Ioana Antonia Cimpean, Valentina Andreea Petre, Florinela Pirvu, Iuliana Paun

Atmospheric deposition represents an important pathway for the transfer of emerging contaminants to terrestrial and aquatic environments, yet data on organophosphate flame retardants (OPFRs) remain scarce. In this study, the occurrence, concentration levels, and co-occurrence of eight OPFRs and per- and polyfluoroalkyl substances (PFAS) were investigated in urban snow samples collected during February 2025. A total of fifteen composite samples were obtained from thirteen locations in Bucharest and Ilfov County and two sites in Ramnicu Valcea, Romania, reflecting contrasting urban and regional atmospheric settings. A total of eight OPFRs and 27 PFAS were targeted using LC-MS/MS analysis. Among OPFRs, tris(1-chloro-2-propyl) phosphate (TCPP) was the dominant compound, with concentrations ranging from 43.4 to 691 ng/L (mean 188 ng/L), accounting for the largest contribution to ΣOPFRs (2818 ng/L). Moderate levels were observed for the other OPFR compounds, except bis(2-ethylhexyl) phosphate (BEHP), which showed sporadic occurrence, and both dibutyl phosphate (DBP) and triphenyl phosphate (TPP), which were consistently below the limit of quantitation of the analytical method. The total OPFRs burden exhibited substantial spatial variability, reflecting differences in emission sources and atmospheric transport conditions. Among the 27 PFAS analyzed, only perfluorooctanoic acid (PFOA) was detected above the method quantitation limit, with concentrations between 12.3 and 38.7 ng/L (mean: 26.0 ng/L), indicating a distinct behaviour compared to OPFRs. The co-occurrence of OPFRs and PFOA in snow highlights the role of atmospheric deposition as a relevant pathway for the simultaneous input of diverse anthropogenic contaminants into urban ecosystems.

大气沉积是新出现的污染物向陆地和水生环境转移的重要途径，但关于有机磷阻燃剂（OPFRs）的数据仍然很少。本研究调查了2025年2月采集的城市积雪样品中8种OPFRs以及全氟烷基和多氟烷基物质（PFAS）的发生、浓度水平和共现情况。从罗马尼亚布加勒斯特和伊尔福夫县的13个地点以及拉姆尼库瓦尔恰的两个地点总共获得了15个复合样本，反映了城市和区域大气环境的对比。LC-MS/MS分析共筛选出8个OPFRs和27个PFAS。在OPFRs中，三（1-氯-2-丙基）磷酸（TCPP）为优势化合物，其浓度范围为43.4 ~ 691 ng/L（平均188 ng/L），对ΣOPFRs （2818 ng/L）的贡献最大。除偶有发现的磷酸二（2-乙基己基）酯（BEHP）、磷酸二丁酯（DBP）和磷酸三苯酯（TPP）均低于分析方法定量限外，其余OPFR化合物均为中等水平。OPFRs总负荷表现出显著的空间变异性，反映了排放源和大气输送条件的差异。在分析的27种全氟辛酸中，只有全氟辛酸（PFOA）被检测出高于该方法的定量限制，浓度在12.3至38.7纳克/升之间（平均值：26.0纳克/升），表明与opfr相比具有不同的行为。积雪中OPFRs和PFOA的共存凸显了大气沉积作为多种人为污染物同时输入城市生态系统的相关途径的作用。

{"title":"Atmospheric deposition and co-occurrence patterns of organophosphate flame retardants (OPFRs) and perfluorooctanoic acid (PFOA) in urban snow","authors":"Florentina Laura Chiriac, Vasile Ion Iancu, Ioana Antonia Cimpean, Valentina Andreea Petre, Florinela Pirvu, Iuliana Paun","doi":"10.1016/j.envres.2026.123924","DOIUrl":"10.1016/j.envres.2026.123924","url":null,"abstract":"<div><div>Atmospheric deposition represents an important pathway for the transfer of emerging contaminants to terrestrial and aquatic environments, yet data on organophosphate flame retardants (OPFRs) remain scarce. In this study, the occurrence, concentration levels, and co-occurrence of eight OPFRs and per- and polyfluoroalkyl substances (PFAS) were investigated in urban snow samples collected during February 2025. A total of fifteen composite samples were obtained from thirteen locations in Bucharest and Ilfov County and two sites in Ramnicu Valcea, Romania, reflecting contrasting urban and regional atmospheric settings. A total of eight OPFRs and 27 PFAS were targeted using LC-MS/MS analysis. Among OPFRs, tris(1-chloro-2-propyl) phosphate (TCPP) was the dominant compound, with concentrations ranging from 43.4 to 691 ng/L (mean 188 ng/L), accounting for the largest contribution to ΣOPFRs (2818 ng/L). Moderate levels were observed for the other OPFR compounds, except bis(2-ethylhexyl) phosphate (BEHP), which showed sporadic occurrence, and both dibutyl phosphate (DBP) and triphenyl phosphate (TPP), which were consistently below the limit of quantitation of the analytical method. The total OPFRs burden exhibited substantial spatial variability, reflecting differences in emission sources and atmospheric transport conditions. Among the 27 PFAS analyzed, only perfluorooctanoic acid (PFOA) was detected above the method quantitation limit, with concentrations between 12.3 and 38.7 ng/L (mean: 26.0 ng/L), indicating a distinct behaviour compared to OPFRs. The co-occurrence of OPFRs and PFOA in snow highlights the role of atmospheric deposition as a relevant pathway for the simultaneous input of diverse anthropogenic contaminants into urban ecosystems.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"295 ","pages":"Article 123924"},"PeriodicalIF":7.7,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146098722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A machine learning framework to assess global mangrove forestation potential under current and future climate scenarios 一个评估当前和未来气候情景下全球红树林造林潜力的机器学习框架。

IF 7.7 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Research

Pub Date : 2026-03-15 Epub Date: 2026-01-30 DOI: 10.1016/j.envres.2026.123923

Guohao Li, Yifei Ma, Tianyu Zhuo, Xinyu Qi, Xueyi You

Mangrove forestation is one of the most efficient forestry practices for carbon sequestration. This study developed a machine learning framework that integrated the random forest algorithm, SHapley Additive exPlanations (SHAP), and partial dependence plots (PDP) to assess global mangrove cover potential and its drivers, utilizing a suite of 48 environmental layers encompassing climatic, topographic, soil, and marine characteristics. Based on the mangrove cover potential, this study quantified the mangrove forestation potential under socioeconomic and ecological land-use constraints, as well as the carbon storage potential of forestation potential. The result showed that there is 156,682 km² of mangrove forestation potential under current climate conditions. When assessing the distribution of mangrove forestation potential across Marine Ecoregions of the World (MEOW) provinces, MEOW ecoregions, and countries, the greatest forestation capacity is observed in the Tropical Northwestern Atlantic, Amazonia, and Indonesia. SHAP and PDP results revealed that soil saturated water content and distance to sea are the key factors controlling mangrove cover potential. Under contrasting shared socioeconomic paths (SSP1-2.6 and SSP5-8.5), mangrove cover potential shows a general increase due to climate changes. However, under SSP5-8.5, sea-level rise alone could reduce the current forestation potential by 26,820 km². Furthermore, only 19,361 km² of the current forestation potential coincides with areas where future cover potential is projected to increase across both scenarios, indicating that the synergistic enhancement effect brought about by climate change on the forestation results is limited. From a national perspective, the five countries with the highest carbon storage potential from mangrove forestation are Indonesia, Brazil, Australia, Mexico, and the Philippines, with 1.016, 0.514, 0.409, 0.391, and 0.317 GtC, respectively. The global mangrove forestation potential map with clear spatial granularity provided in this study can offer important support for international-scale mangrove forestation.

红树林造林是最有效的固碳林业措施之一。本研究开发了一个机器学习框架，该框架集成了随机森林算法、SHapley加性解释（SHAP）和部分依赖图（PDP），利用包括气候、地形、土壤和海洋特征在内的48个环境层来评估全球红树林覆盖潜力及其驱动因素。以红树林覆盖潜力为基础，量化了社会经济和生态土地利用约束下的红树林造林潜力，以及造林潜力的碳储量潜力。结果表明，在当前气候条件下，红树造林潜力为156682 km2。在评估世界海洋生态区（MEOW）各省、MEOW生态区和各国红树林造林潜力分布时，发现热带西北大西洋、亚马逊河流域和印度尼西亚的造林能力最大。SHAP和PDP结果表明，土壤饱和含水量和离海距离是控制红树林覆盖潜力的关键因素。在共享社会经济路径（SSP1-2.6和SSP5-8.5）对比下，红树林覆盖潜力因气候变化而普遍增加。然而，在SSP5-8.5下，仅海平面上升就可能使当前的造林潜力减少26820平方公里。此外，仅有19361 km2的当前造林潜力与两种情景下预测的未来覆盖潜力增加的面积相吻合，表明气候变化对造林结果的协同增强作用有限。从国家角度看，印尼、巴西、澳大利亚、墨西哥和菲律宾的红树林碳储量潜力最大，分别为1.016、0.514、0.409、0.391和0.317 GtC。该研究提供的具有清晰空间粒度的全球红树林造林潜力图可为国际尺度的红树林造林提供重要支持。

{"title":"A machine learning framework to assess global mangrove forestation potential under current and future climate scenarios","authors":"Guohao Li, Yifei Ma, Tianyu Zhuo, Xinyu Qi, Xueyi You","doi":"10.1016/j.envres.2026.123923","DOIUrl":"10.1016/j.envres.2026.123923","url":null,"abstract":"<div><div>Mangrove forestation is one of the most efficient forestry practices for carbon sequestration. This study developed a machine learning framework that integrated the random forest algorithm, SHapley Additive exPlanations (SHAP), and partial dependence plots (PDP) to assess global mangrove cover potential and its drivers, utilizing a suite of 48 environmental layers encompassing climatic, topographic, soil, and marine characteristics. Based on the mangrove cover potential, this study quantified the mangrove forestation potential under socioeconomic and ecological land-use constraints, as well as the carbon storage potential of forestation potential. The result showed that there is 156,682 km<sup>2</sup> of mangrove forestation potential under current climate conditions. When assessing the distribution of mangrove forestation potential across Marine Ecoregions of the World (MEOW) provinces, MEOW ecoregions, and countries, the greatest forestation capacity is observed in the Tropical Northwestern Atlantic, Amazonia, and Indonesia. SHAP and PDP results revealed that soil saturated water content and distance to sea are the key factors controlling mangrove cover potential. Under contrasting shared socioeconomic paths (SSP1-2.6 and SSP5-8.5), mangrove cover potential shows a general increase due to climate changes. However, under SSP5-8.5, sea-level rise alone could reduce the current forestation potential by 26,820 km<sup>2</sup>. Furthermore, only 19,361 km<sup>2</sup> of the current forestation potential coincides with areas where future cover potential is projected to increase across both scenarios, indicating that the synergistic enhancement effect brought about by climate change on the forestation results is limited. From a national perspective, the five countries with the highest carbon storage potential from mangrove forestation are Indonesia, Brazil, Australia, Mexico, and the Philippines, with 1.016, 0.514, 0.409, 0.391, and 0.317 GtC, respectively. The global mangrove forestation potential map with clear spatial granularity provided in this study can offer important support for international-scale mangrove forestation.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"295 ","pages":"Article 123923"},"PeriodicalIF":7.7,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146099588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluating the effectiveness of marine ecological restoration in Xiamen Bay: A three-dimensional ecosystem-based framework 基于三维生态系统框架的厦门湾海洋生态恢复效果评价

IF 7.7 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Research

Pub Date : 2026-03-15 Epub Date: 2026-01-30 DOI: 10.1016/j.envres.2026.123867

Shanshan Zheng, Jing Fang, Zhouhua Guo, Yurong Ouyang, Ling Cai, Juanjuan Dai

Marine ecosystems are undergoing unprecedented degradation, making ecological restoration an essential active intervention to mitigate this decline. In recent years, Xiamen has continuously advanced multiple types of bay ecological restoration projects, accumulating substantial practical experience. From an ecosystem perspective, this study develops a three-dimensional evaluation framework encompassing ecosystem pattern, ecosystem quality, and ecosystem function. Coastal blue carbon indicators reflect the spatial distribution of mangroves and other coastal vegetation; dissolved oxygen and chemical oxygen demand represent improvements in water quality; and coastal vulnerability indicators measure the ecosystem's capacity for disaster prevention and mitigation. Using 2003, 2013, and 2023 as reference years, we systematically evaluated the ecological restoration outcomes in Xiamen Bay over the past two decades. The results show that ecological conditions in the Jiulong River Estuary, Huandong Sea Area, and Eastern Sea Area improved significantly from 2003 to 2013. From 2013 to 2023, restoration effects became more pronounced in the Western Sea Area, Huandong Sea Area, and Eastern Sea Area, while restoration in the Dadeng Sea Area lagged due to human disturbances. Quantitative analysis indicates that restoration effectiveness increased by 60.4 % between 2003 and 2013, and by 23.6 % from 2013 to 2023, with an overall improvement of 98.2 % across the 20-year period. These findings highlight the long-term positive impacts of ecological restoration. Future efforts should focus on strengthening resilience in climate-vulnerable areas, enhancing long-term water quality monitoring and dynamic evaluation, and advancing the integration of restoration with infrastructure development to ensure sustainable and effective outcomes.

海洋生态系统正在经历前所未有的退化，因此生态恢复是缓解这种退化的必要积极干预措施。近年来，厦门不断推进多种类型的海湾生态修复工程，积累了丰富的实践经验。从生态系统视角出发，构建了生态系统格局、生态系统质量和生态系统功能的三维评价框架。海岸带蓝碳指标反映红树林等海岸带植被的空间分布；溶解氧和化学需氧量代表水质的改善；沿海脆弱性指标衡量生态系统预防和减轻灾害的能力。以2003年、2013年和2023年为参考年，对厦门湾近20年的生态恢复效果进行了系统评价。结果表明：2003 - 2013年，九龙江河口、环东海域和东海海域的生态条件明显改善；2013 - 2023年，西海区、环东海区和东部海区恢复效果较为明显，而大登海区受人为干扰恢复滞后。定量分析表明，2003 - 2013年恢复效率提高了60.4%，2013 - 2023年提高了23.6%，20年间总体提高了98.2%。这些发现突出了生态恢复的长期积极影响。未来的工作应侧重于加强气候脆弱地区的抵御能力，加强长期水质监测和动态评估，推进恢复与基础设施建设的整合，以确保可持续和有效的成果。

{"title":"Evaluating the effectiveness of marine ecological restoration in Xiamen Bay: A three-dimensional ecosystem-based framework","authors":"Shanshan Zheng, Jing Fang, Zhouhua Guo, Yurong Ouyang, Ling Cai, Juanjuan Dai","doi":"10.1016/j.envres.2026.123867","DOIUrl":"10.1016/j.envres.2026.123867","url":null,"abstract":"<div><div>Marine ecosystems are undergoing unprecedented degradation, making ecological restoration an essential active intervention to mitigate this decline. In recent years, Xiamen has continuously advanced multiple types of bay ecological restoration projects, accumulating substantial practical experience. From an ecosystem perspective, this study develops a three-dimensional evaluation framework encompassing ecosystem pattern, ecosystem quality, and ecosystem function. Coastal blue carbon indicators reflect the spatial distribution of mangroves and other coastal vegetation; dissolved oxygen and chemical oxygen demand represent improvements in water quality; and coastal vulnerability indicators measure the ecosystem's capacity for disaster prevention and mitigation. Using 2003, 2013, and 2023 as reference years, we systematically evaluated the ecological restoration outcomes in Xiamen Bay over the past two decades. The results show that ecological conditions in the Jiulong River Estuary, Huandong Sea Area, and Eastern Sea Area improved significantly from 2003 to 2013. From 2013 to 2023, restoration effects became more pronounced in the Western Sea Area, Huandong Sea Area, and Eastern Sea Area, while restoration in the Dadeng Sea Area lagged due to human disturbances. Quantitative analysis indicates that restoration effectiveness increased by 60.4 % between 2003 and 2013, and by 23.6 % from 2013 to 2023, with an overall improvement of 98.2 % across the 20-year period. These findings highlight the long-term positive impacts of ecological restoration. Future efforts should focus on strengthening resilience in climate-vulnerable areas, enhancing long-term water quality monitoring and dynamic evaluation, and advancing the integration of restoration with infrastructure development to ensure sustainable and effective outcomes.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"295 ","pages":"Article 123867"},"PeriodicalIF":7.7,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146099546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nitrate source identification and health risk assessment of surface waters in southwestern China 西南地区地表水硝酸盐来源鉴定及健康风险评价

IF 7.7 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Research

Pub Date : 2026-03-15 Epub Date: 2026-01-30 DOI: 10.1016/j.envres.2026.123922

Shiming Yang , Haidong Li , Yuankang Zhong , Yalu Wang , Yujiao Zhang , Ling Tan , Zhi Su , Chengyue Lai , Pingchuan Gao , Zhongyou Yu

Nitrate pollution in surface waters poses a dual challenge to ecosystem sustainability and human health, particularly in vulnerable plain basins with agricultural and urbanized regions. This study developed an integrated framework combining statistical and isotopic analyses, receptor modeling (Positive matrix factorization and MixSIAR), and probabilistic health risk assessment to investigate nitrogen pollution in a typical plain river basin of southwestern China. Results revealed that nitrate was the primary nitrogen pollutant in surface water, with higher concentrations observed in urbanized, agricultural, and confluence areas. Nitrification posed a significant influence on the nitrate concentration, whereas the effect of denitrification was considered negligible. Among diverse pollution sources, sewage discharge was the predominant contributor (dry season: 62.3 %, wet season: 65.2 %), followed by soil nitrogen and agricultural fertilizers. In addition, nitrate posed negligible non-carcinogenic risks to adults, with the maximum values of THI<1.00 (dry season: 0.44, wet season: 0.50). However, in the wet season, 1.90 % of the watershed posed potential health risks to children due to intense nitrification. A pronounced risk increase was identified in areas characterized by intensive anthropogenic activities and at river confluence zones. These findings revealed that nitrate contamination and associated health risks were substantially elevated in urban, agricultural, and confluence zones. This highlights the urgent need for strengthened sewage management, optimized fertilizer application, and targeted monitoring in high-risk zones. The proposed integrated framework provides a reliable approach for nitrate source identification and risk evaluation in plain basins, while providing effective guidance for local governments and policymakers in nitrate mitigation and sustainable development of water resources.

地表水中的硝酸盐污染对生态系统的可持续性和人类健康构成双重挑战，特别是在具有农业和城市化地区的脆弱平原流域。本研究采用统计与同位素分析、受体模型（正矩阵分解和MixSIAR）和概率健康风险评估相结合的综合框架对西南典型平原河流流域的氮污染进行了研究。结果表明，硝酸盐是地表水中主要的氮污染物，在城市、农业和汇流区浓度较高。硝化作用对硝酸盐浓度的影响显著，而反硝化作用的影响可以忽略不计。在不同的污染源中，污水排放的贡献最大（旱季占62.3%，雨季占65.2%），其次是土壤氮和农用肥料。此外，硝酸盐对成人的非致癌风险可以忽略不计，THI值最大

{"title":"Nitrate source identification and health risk assessment of surface waters in southwestern China","authors":"Shiming Yang , Haidong Li , Yuankang Zhong , Yalu Wang , Yujiao Zhang , Ling Tan , Zhi Su , Chengyue Lai , Pingchuan Gao , Zhongyou Yu","doi":"10.1016/j.envres.2026.123922","DOIUrl":"10.1016/j.envres.2026.123922","url":null,"abstract":"<div><div>Nitrate pollution in surface waters poses a dual challenge to ecosystem sustainability and human health, particularly in vulnerable plain basins with agricultural and urbanized regions. This study developed an integrated framework combining statistical and isotopic analyses, receptor modeling (Positive matrix factorization and MixSIAR), and probabilistic health risk assessment to investigate nitrogen pollution in a typical plain river basin of southwestern China. Results revealed that nitrate was the primary nitrogen pollutant in surface water, with higher concentrations observed in urbanized, agricultural, and confluence areas. Nitrification posed a significant influence on the nitrate concentration, whereas the effect of denitrification was considered negligible. Among diverse pollution sources, sewage discharge was the predominant contributor (dry season: 62.3 %, wet season: 65.2 %), followed by soil nitrogen and agricultural fertilizers. In addition, nitrate posed negligible non-carcinogenic risks to adults, with the maximum values of THI<1.00 (dry season: 0.44, wet season: 0.50). However, in the wet season, 1.90 % of the watershed posed potential health risks to children due to intense nitrification. A pronounced risk increase was identified in areas characterized by intensive anthropogenic activities and at river confluence zones. These findings revealed that nitrate contamination and associated health risks were substantially elevated in urban, agricultural, and confluence zones. This highlights the urgent need for strengthened sewage management, optimized fertilizer application, and targeted monitoring in high-risk zones. The proposed integrated framework provides a reliable approach for nitrate source identification and risk evaluation in plain basins, while providing effective guidance for local governments and policymakers in nitrate mitigation and sustainable development of water resources.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"295 ","pages":"Article 123922"},"PeriodicalIF":7.7,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146099577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Natural vivianite activates peroxymonosulphate for efficient ofloxacin degradation: Performance and mechanism 天然橄榄石活化过氧单硫酸盐有效降解氧氟沙星：性能和机制。

IF 7.7 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Research

Pub Date : 2026-03-15 Epub Date: 2026-01-28 DOI: 10.1016/j.envres.2026.123905

Teng Bao , Cheng long Li , Wei Wei , Mekdimu Mezemir Damtie , Zhijie Chen , Haijiao Xie , Bing-Jie Ni

Antibiotics (e.g., ofloxacin) pollution is an emerging environmental concern due to its persistence and potential health risks. Advanced oxidation processes (AOPs) offer promising solutions, yet their practical application is often limited by catalyst cost and stability. Here, we report the use of natural vivianite—a low-cost iron phosphate mineral—as an efficient peroxymonosulphate (PMS) activator for ofloxacin degradation. Under the optimised conditions, 97 % of ofloxacin was effectively degraded within 60 min. The ofloxacin degradation ratio could still reach 76 % after three consecutive cycles. Mechanistic investigations revealed Mn²⁺ and Co²⁺ isomorphic substitutions within the vivianite lattice, which induced electron cloud redistribution and promoted the formation of metal–oxygen–metal and metal–oxygen bonds. These structural changes enhanced charge transfer and facilitated PMS adsorption and activation via both surface-bound sites and leached phosphate species. Electron paramagnetic resonance spectroscopy confirmed that degradation proceeded through synergistic radical (·OH, SO₄·^-, O₂·^-) and non-radical (¹O₂) pathways. Importantly, the degradation products exhibited significantly lower toxicity than ofloxacin itself, underscoring the environmental relevance of this process. These findings highlight the potential of natural vivianite as a cost-effective and sustainable PMS activator for antibiotic removal in water treatment applications.

抗生素（如氧氟沙星）污染由于其持久性和潜在的健康风险而成为一个新出现的环境问题。高级氧化工艺（AOPs）提供了很有前途的解决方案，但其实际应用往往受到催化剂成本和稳定性的限制。在这里，我们报道了使用天然维安石——一种低成本的磷酸铁矿物——作为一种高效的过氧单硫酸盐（PMS）活化剂来降解氧氟沙星。在优化条件下，60 min内氧氟沙星的有效降解率为97%。连续3次循环后，氧氟沙星的降解率仍可达76%。机理研究表明，锰+和Co2+在维安石晶格内的同构取代，诱导了电子云的重新分布，促进了金属-氧-金属和金属-氧键的形成。这些结构变化增强了电荷转移，促进了PMS通过表面结合位点和浸出的磷酸盐的吸附和活化。电子顺磁共振波谱证实，降解过程通过自由基（·OH, SO4·-,O2·-）和非自由基（1O2）协同途径进行。重要的是，降解产物的毒性明显低于氧氟沙星本身，强调了这一过程的环境相关性。这些发现突出了天然活菌石作为一种具有成本效益和可持续的PMS活化剂在水处理应用中去除抗生素的潜力。

{"title":"Natural vivianite activates peroxymonosulphate for efficient ofloxacin degradation: Performance and mechanism","authors":"Teng Bao , Cheng long Li , Wei Wei , Mekdimu Mezemir Damtie , Zhijie Chen , Haijiao Xie , Bing-Jie Ni","doi":"10.1016/j.envres.2026.123905","DOIUrl":"10.1016/j.envres.2026.123905","url":null,"abstract":"<div><div>Antibiotics (e.g., ofloxacin) pollution is an emerging environmental concern due to its persistence and potential health risks. Advanced oxidation processes (AOPs) offer promising solutions, yet their practical application is often limited by catalyst cost and stability. Here, we report the use of natural vivianite—a low-cost iron phosphate mineral—as an efficient peroxymonosulphate (PMS) activator for ofloxacin degradation. Under the optimised conditions, 97 % of ofloxacin was effectively degraded within 60 min. The ofloxacin degradation ratio could still reach 76 % after three consecutive cycles. Mechanistic investigations revealed Mn<sup>2+</sup> and Co<sup>2+</sup> isomorphic substitutions within the vivianite lattice, which induced electron cloud redistribution and promoted the formation of metal–oxygen–metal and metal–oxygen bonds. These structural changes enhanced charge transfer and facilitated PMS adsorption and activation via both surface-bound sites and leached phosphate species. Electron paramagnetic resonance spectroscopy confirmed that degradation proceeded through synergistic radical (·OH, SO<sub>4</sub>·<sup>-</sup>, O<sub>2</sub>·<sup>-</sup>) and non-radical (<sup>1</sup>O<sub>2</sub>) pathways. Importantly, the degradation products exhibited significantly lower toxicity than ofloxacin itself, underscoring the environmental relevance of this process. These findings highlight the potential of natural vivianite as a cost-effective and sustainable PMS activator for antibiotic removal in water treatment applications.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"295 ","pages":"Article 123905"},"PeriodicalIF":7.7,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146091592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimized one-step pyrolysis synthesis of zinc-modified sludge biochar for enhanced perfluorooctane sulfonate removal from water 优化一步热解合成锌改性污泥生物炭对水中全氟辛烷磺酸的去除效果。

IF 7.7 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Research

Pub Date : 2026-03-15 Epub Date: 2026-01-17 DOI: 10.1016/j.envres.2026.123801

Muzi Li , Ranbin Liu , Xiaodi Hao , Dongye Zhao , Xi Cheng , Jian Pan , Tianyuan Xu , Shuting Tian , Yangmo Zhu

Perfluoroocatane sulfonate (PFOS) has drawn increasing global attention due to its environmental omnipresence and adverse health effects. This study presents a synergistic strategy to address the dual challenge of legacy PFOS contamination and sustainable sewage sludge disposal by developing a novel, zinc-modified sludge-based biochar (Zn/SBC) for highly efficient PFOS removal. The innovation lies in the one-step pyrolysis using ZnCl₂ as an activator, which dramatically enhanced the specific surface area by 50-fold (to 261.33 m²/g) by creating a well-developed micro- and mesoporous structure. Under optimized conditions, 26%Zn/SBC exhibited a superior PFOS adsorption capacity of 60.14 mg/g, 5.83 times than that of pristine biochar, and achieved >99% removal across a wide pH range (3–11). The material exhibited remarkably stable performance, sustaining a removal efficiency over 93.6% in the presence of high concentration of competing ions and humic acid. After 5 cycles of repeated uses, 26%Zn/SBC remained highly reactive in adsorption for PFOS. In addition, the superior adsorption of PFOS by optimized 26%Zn/SBC is attributed to a unique concurrent mechanism, including electrostatic attraction facilitated by the elevated point of zero charge (pH_PZC = 8.1), surface complexation with Zn/ZnO sites, π-anion interaction, and hydrophobic effects. This study not only presents a high-performance and low-cost adsorbent for PFOS remediation, which holds the potential for more cost-effective PFAS removal, but also establishes a sustainable "waste-to-wealth" strategy, paving the way for practical solutions to concentration persistent organic pollutants in aquatic environments.

全氟辛烷磺酸（PFOS）由于其在环境中的无所不在和对健康的不利影响而日益引起全球关注。本研究提出了一种协同策略，通过开发一种新型的锌改性污泥基生物炭（Zn/SBC）来高效去除全氟辛烷磺酸，以解决遗留的全氟辛烷磺酸污染和可持续污水污泥处理的双重挑战。创新之处在于采用ZnCl2作为活化剂的一步热解，通过形成发育良好的微孔和介孔结构，将比表面积显著提高了50倍（达到261.33 m2/g）。在优化条件下，26%Zn/SBC对PFOS的吸附量为60.14 mg/g，是原始生物炭的5.83倍，在较宽的pH范围内（3-11），PFOS的去除率达到了99%。该材料表现出非常稳定的性能，在高浓度竞争离子和腐植酸存在下，去除率保持在93.6%以上。经过5次循环使用，26%Zn/SBC对全氟辛烷磺酸的吸附仍保持较高的活性。此外，优化后的26%Zn/SBC对PFOS的优异吸附是由一种独特的并行机制引起的，包括零电荷点（pHPZC=8.1）的静电吸引、与Zn/ZnO位点的表面络合、π-阴离子相互作用和疏水效应。本研究不仅为全氟辛烷磺酸修复提供了一种高性能、低成本的吸附剂，具有更高的全氟辛烷磺酸去除成本效益的潜力，而且还建立了可持续的“废物转化为财富”战略，为水生环境中持久性有机污染物浓度的实际解决方案铺平了道路。

{"title":"Optimized one-step pyrolysis synthesis of zinc-modified sludge biochar for enhanced perfluorooctane sulfonate removal from water","authors":"Muzi Li , Ranbin Liu , Xiaodi Hao , Dongye Zhao , Xi Cheng , Jian Pan , Tianyuan Xu , Shuting Tian , Yangmo Zhu","doi":"10.1016/j.envres.2026.123801","DOIUrl":"10.1016/j.envres.2026.123801","url":null,"abstract":"<div><div>Perfluoroocatane sulfonate (PFOS) has drawn increasing global attention due to its environmental omnipresence and adverse health effects. This study presents a synergistic strategy to address the dual challenge of legacy PFOS contamination and sustainable sewage sludge disposal by developing a novel, zinc-modified sludge-based biochar (Zn/SBC) for highly efficient PFOS removal. The innovation lies in the one-step pyrolysis using ZnCl<sub>2</sub> as an activator, which dramatically enhanced the specific surface area by 50-fold (to 261.33 m<sup>2</sup>/g) by creating a well-developed micro- and mesoporous structure. Under optimized conditions, 26%Zn/SBC exhibited a superior PFOS adsorption capacity of 60.14 mg/g, 5.83 times than that of pristine biochar, and achieved >99% removal across a wide pH range (3–11). The material exhibited remarkably stable performance, sustaining a removal efficiency over 93.6% in the presence of high concentration of competing ions and humic acid. After 5 cycles of repeated uses, 26%Zn/SBC remained highly reactive in adsorption for PFOS. In addition, the superior adsorption of PFOS by optimized 26%Zn/SBC is attributed to a unique concurrent mechanism, including electrostatic attraction facilitated by the elevated point of zero charge (pH<sub>PZC</sub> = 8.1), surface complexation with Zn/ZnO sites, π-anion interaction, and hydrophobic effects. This study not only presents a high-performance and low-cost adsorbent for PFOS remediation, which holds the potential for more cost-effective PFAS removal, but also establishes a sustainable \"waste-to-wealth\" strategy, paving the way for practical solutions to concentration persistent organic pollutants in aquatic environments.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"293 ","pages":"Article 123801"},"PeriodicalIF":7.7,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146002795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pollutants and cancer therapy 污染物与癌症治疗。

IF 7.7 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Research

Pub Date : 2026-03-15 Epub Date: 2026-01-17 DOI: 10.1016/j.envres.2026.123802

Francisco Alejandro Lagunas-Rangel

Environmental pollutants are chemical or physical substances released into ecosystems that pose serious risks to the health of living organisms. Despite their recognized toxicity, the health burden of pollutants is often underestimated, limiting our understanding of their full impact on public health. One particularly underexplored area is how exposure to pollutants may influence the effectiveness of cancer therapies and contribute to treatment resistance. Emerging evidence suggests that pollutants could substantially affect the outcomes of chemotherapy and immunotherapy. However, few studies have examined these effects at exposure levels that realistically reflect environmental conditions. This narrative review provides a detailed analysis of cellular mechanisms through which pollutants may alter therapeutic efficacy, including enhanced drug efflux, activation of oncogenic signaling pathways, inhibition of apoptosis, mitochondrial alterations, and downregulation of tumor suppressor genes. In addition, it explores previously overlooked aspects of pollutant–cancer therapy interactions, such as their potential influence on the pharmacokinetics of chemotherapeutic drugs, modulation of the immune response, and alterations in the tumor microenvironment. Notably, the review also considers potential synergistic effects of pollutant mixtures, which may further enhance cancer cell survival and therapy resistance. Overall, this work aims to stimulate further research and draw greater scientific and clinical attention to this complex topic, highlighting the need for increased awareness and consideration of pollutants in the context of cancer therapy.

环境污染物是指释放到生态系统中的化学或物理物质，对生物体的健康构成严重威胁。尽管污染物具有公认的毒性，但其健康负担往往被低估，限制了我们对其对公共卫生的全面影响的理解。一个特别未被探索的领域是暴露于污染物如何影响癌症治疗的有效性并导致治疗耐药性。新出现的证据表明，污染物可能会严重影响化疗和免疫治疗的结果。然而，很少有研究在实际反映环境条件的暴露水平上检查这些影响。这篇叙述性综述详细分析了污染物可能改变治疗效果的细胞机制，包括增强药物外排、激活致癌信号通路、抑制细胞凋亡、线粒体改变和下调肿瘤抑制基因。此外，它还探讨了以前被忽视的污染物-癌症治疗相互作用的方面，例如它们对化疗药物药代动力学的潜在影响，免疫反应的调节以及肿瘤微环境的改变。值得注意的是，该综述还考虑了污染物混合物的潜在协同效应，这可能进一步提高癌细胞的存活和治疗耐药性。总的来说，这项工作旨在刺激进一步的研究，并吸引更多的科学和临床关注这个复杂的话题，强调在癌症治疗的背景下提高对污染物的认识和考虑的必要性。

{"title":"Pollutants and cancer therapy","authors":"Francisco Alejandro Lagunas-Rangel","doi":"10.1016/j.envres.2026.123802","DOIUrl":"10.1016/j.envres.2026.123802","url":null,"abstract":"<div><div>Environmental pollutants are chemical or physical substances released into ecosystems that pose serious risks to the health of living organisms. Despite their recognized toxicity, the health burden of pollutants is often underestimated, limiting our understanding of their full impact on public health. One particularly underexplored area is how exposure to pollutants may influence the effectiveness of cancer therapies and contribute to treatment resistance. Emerging evidence suggests that pollutants could substantially affect the outcomes of chemotherapy and immunotherapy. However, few studies have examined these effects at exposure levels that realistically reflect environmental conditions. This narrative review provides a detailed analysis of cellular mechanisms through which pollutants may alter therapeutic efficacy, including enhanced drug efflux, activation of oncogenic signaling pathways, inhibition of apoptosis, mitochondrial alterations, and downregulation of tumor suppressor genes. In addition, it explores previously overlooked aspects of pollutant–cancer therapy interactions, such as their potential influence on the pharmacokinetics of chemotherapeutic drugs, modulation of the immune response, and alterations in the tumor microenvironment. Notably, the review also considers potential synergistic effects of pollutant mixtures, which may further enhance cancer cell survival and therapy resistance. Overall, this work aims to stimulate further research and draw greater scientific and clinical attention to this complex topic, highlighting the need for increased awareness and consideration of pollutants in the context of cancer therapy.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"293 ","pages":"Article 123802"},"PeriodicalIF":7.7,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146002742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0