Journal of Environmental Sciences-china最新文献_第8页

Roles of naturally occurring biogenic iron-manganese oxides (BFMO) in PMS-based environmental remediation: A complete electron transfer pathway 天然存在的生物源铁锰氧化物（BFMO）在pms环境修复中的作用：一个完整的电子转移途径

IF 5.9 2区环境科学与生态学

Journal of Environmental Sciences-china Pub Date : 2025-03-01 DOI: 10.1016/j.jes.2024.11.011

Feng Hu , Lite Meng , Mei Wang , Yunhui Zhang , Zuxin Xu

{"title":"Roles of naturally occurring biogenic iron-manganese oxides (BFMO) in PMS-based environmental remediation: A complete electron transfer pathway","authors":"Feng Hu , Lite Meng , Mei Wang , Yunhui Zhang , Zuxin Xu","doi":"10.1016/j.jes.2024.11.011","DOIUrl":"10.1016/j.jes.2024.11.011","url":null,"abstract":"<div><div>Bisphenol A (BPA) is a pervasive endocrine disruptor that enters the environment through anthropogenic activities, posing significant risks to ecosystems and human health. Advanced oxidation processes (AOPs) are promising methods for the removal of organic microcontaminants in the environment. Biogenic manganese oxides (BMO) are reported as catalysts due to their transition metal nature, and are also readily generated by manganese-oxidizing microorganisms in the natural environment, and therefore their roles and effects in AOPs-based environmental remediation should be investigated. However, biogenic iron-manganese oxides (BFMO) are actually generated rather than BMO due to the coexistence of ferrous ions which can be oxidized to iron oxides. Therefore, this study produced BFMO originating from a highly efficient manganese-oxidizing fungus <em>Cladosporium</em> sp. XM01 and chose peroxymonosulfate (PMS) as a typical oxidant for the degradation of bisphenol A (BPA), a model organic micropollutant. Characterization results indicate that the formed BFMO was amorphous with a low crystallinity. The BFMO/PMS system achieved a high degradation performance that 85 % BPA was rapidly degraded within 60 min, and therefore the contribution of BFMO cannot be ignored during PMS-based environmental remediation. Different from the findings of previous studies (mostly radicals and singlet oxygen), the degradation mechanism was first proven as a 100 % electron-transfer pathway mediated by high-valence Mn under acidic conditions provided by PMS. The findings of this study provide new insights into the degradation mechanisms of pollutants using biogenic metal oxides in PMS activation and the contribution of their coexistence in AOPs-based environmental remediation.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"155 ","pages":"Pages 795-805"},"PeriodicalIF":5.9,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143519225","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

Assessment of photocatalytic activity of novel PrBiFeO3 perovskite composites in visible-light photocatalytic decomposition reaction 新型 PrBiFeO3 包晶石复合材料在可见光光催化分解反应中的光催化活性评估

IF 5.9 2区环境科学与生态学

Journal of Environmental Sciences-china Pub Date : 2025-02-26 DOI: 10.1016/j.jes.2025.02.033

Sang-Chul Jung, Kyong-Hwan Chung

{"title":"Assessment of photocatalytic activity of novel PrBiFeO3 perovskite composites in visible-light photocatalytic decomposition reaction","authors":"Sang-Chul Jung, Kyong-Hwan Chung","doi":"10.1016/j.jes.2025.02.033","DOIUrl":"10.1016/j.jes.2025.02.033","url":null,"abstract":"<div><div>In this study, the visible-light photocatalytic reaction properties of perovskite catalysts was investigated with excellent visible-light sensitivity. Titanate-based and ferrite-based perovskites were introduced as light-responsive catalysts. A novel ferrite-based perovskite composite, PrBiFeO<sub>3</sub>, was synthesized, which demonstrated significantly enhanced light absorption under both visible light and UV illumination. The composite was prepared according to a combined sol-gel and solvothermal method. The newly synthesized PrBiFeO<sub>3</sub> exhibited excellent absorption capabilities for both UV and visible light, with a band gap energy of about 2.0 eV. These perovskites showed photocatalytic activity in the decomposition of methylene blue and formaldehyde under visible light LED lamp illumination. Notably, the ferrite-based perovskites, including PrFeO<sub>3</sub>, displayed better photocatalytic activity under visible light compared to the titanate-based perovskites. The novel PrBiFeO<sub>3</sub> composite also produced hydrogen and oxygen through water splitting under artificial sunlight and liquid plasma discharging. The amount of hydrogen produced by photocatalytic water splitting in PrBiFeO<sub>3</sub> under liquid plasma irradiation was approximately 50 times higher than that produced under artificial sunlight irradiation.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"156 ","pages":"Pages 549-561"},"PeriodicalIF":5.9,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783504","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

PM2.5-bound metallic elements in village and urban airs in North China during wintertime: Concentration, morphology, mixing state, and size distribution 冬季中国北方乡村和城市空气中pm2.5结合的金属元素：浓度、形态、混合状态和粒径分布

IF 5.9 2区环境科学与生态学

Journal of Environmental Sciences-china Pub Date : 2025-02-25 DOI: 10.1016/j.jes.2025.02.025

Yinxiao Zhang , Jian Zhang , Xiaotong Jiang , Yuanyuan Wang , Xiaokun Ding , Weijun Li

{"title":"PM2.5-bound metallic elements in village and urban airs in North China during wintertime: Concentration, morphology, mixing state, and size distribution","authors":"Yinxiao Zhang , Jian Zhang , Xiaotong Jiang , Yuanyuan Wang , Xiaokun Ding , Weijun Li","doi":"10.1016/j.jes.2025.02.025","DOIUrl":"10.1016/j.jes.2025.02.025","url":null,"abstract":"<div><div>Atmospheric metal pollution is a significant environmental issue in China. Understanding the microscopic characteristics of metallic elements are crucial for investigating their sources and health effects, but this information is still limited. In this study, transmission electron microscopy (TEM) combined with bulk analysis method were employed to investigate the microscopic characteristics and mass concentrations of atmospheric metallic elements at a village site and an urban site located in North China Plain during wintertime. Our results reveal that the total mass concentrations of 16 metallic elements (including nine toxic heavy metallic elements) in PM<sub>2.5</sub> were 3439.18 ± 1101.24 ng/m<sup>3</sup> (1129.6 ± 376.85 ng/m<sup>3</sup>) at the village site and 3555.1 ± 916.71 ng/m<sup>3</sup> (1295.26 ± 446.39 ng/m<sup>3</sup>) at urban site, accounting for 2.23 % and 2.76 % of PM<sub>2.5</sub>, respectively. We found that K, Ca, and Fe were the dominant elements, constituting over 75 % of total metal mass. TEM analysis indicates that these metallic elements were mainly enriched in six types of individual particles, including K-rich, mineral, fly ash, Fe-rich, Zn-rich, and Pb-rich particles. Mineral particles were predominant in all individual metal particles at urban site, while K-rich particles became the dominant metal particles influenced by residential biomass burning at village site. Moreover, we found toxic metal particles (Fe-rich, Zn-rich, Pb-rich, and fly ash) presented smaller mean sizes (243 nm) in village air compared to urban air (337 nm), suggesting that metal particles in village air might pose a higher health risk to the residents. These results emphasize that atmospheric metal pollution in the village areas need more attentions in the future.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"158 ","pages":"Pages 724-734"},"PeriodicalIF":5.9,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144606140","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

Ozone pollution induced-yield loss of major staple crops in China and effects from COVID-19 臭氧污染导致中国主要粮食作物减产及新冠肺炎疫情影响

IF 5.9 2区环境科学与生态学

Journal of Environmental Sciences-china Pub Date : 2025-02-25 DOI: 10.1016/j.jes.2025.02.034

Haiyang Liu , Siyuan Wang , Guangsheng Chen , Zhaozhong Feng , Di Liu , Wenxiu Zhang , Shufen Pan , Hanqin Tian

{"title":"Ozone pollution induced-yield loss of major staple crops in China and effects from COVID-19","authors":"Haiyang Liu , Siyuan Wang , Guangsheng Chen , Zhaozhong Feng , Di Liu , Wenxiu Zhang , Shufen Pan , Hanqin Tian","doi":"10.1016/j.jes.2025.02.034","DOIUrl":"10.1016/j.jes.2025.02.034","url":null,"abstract":"<div><div>Surface ozone (O<sub>3</sub>) pollution showed a continuous increasing trend during the recent decades in China, posing an increasing threat to food security. A wide range of yield reductions have been reported and thus more studies are needed to narrow down the uncertainty resulting from spatiotemporal accuracy of O<sub>3</sub> metrics and extrapolation methods. Based on a high spatial resolution (0.1°) hourly surface O<sub>3</sub> data, here we analyzed the spatiotemporal O<sub>3</sub> pollution patterns and impacts on yield, production and economic losses for wheat, rice, and maize in China during 2005–2020. The accumulated O<sub>3</sub> exposure over a threshold of 40 ppb (AOT40) increased by 10 % during 2005–2019, and a decrease of 5.56 % was observed in 2020 due to the COVID-19 lockdowns. Rising O<sub>3</sub> pollution reduced national level wheat, rice and maize yields by 14.51 % ± 0.43 %, 11.10 % ± 0.6 %, and 3.99 % ± 0.11 %, respectively. A Business-As-Usual projection suggested that the relative yield loss (RYL) would potentially reach 8 %–18 % at the national scale by 2050 if no emission control is implemented. COVID-19 lockdowns in 2020 led to significantly reduced RYL for maize (0.52 %) and rice (2.17 %) but not for wheat (0.11 %), with the largest reduction (1.88 %–9.4 %) in North China Plain, highlighting the potential benefits of emission control. Our findings provided robust evidence that rising O<sub>3</sub> pollution has significantly affected China's crop yields, production and economic losses, underscoring the urgent need to curb O<sub>3</sub> pollution to safeguard food security, particularly in densely populated and industrialized regions.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"157 ","pages":"Pages 804-820"},"PeriodicalIF":5.9,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144137925","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

Environmental catalytic city: New engine for air pollution control 环境催化城市：大气污染治理的新引擎

IF 5.9 2区环境科学与生态学

Journal of Environmental Sciences-china Pub Date : 2025-02-25 DOI: 10.1016/j.jes.2025.02.019

Jinzhu Ma , Biwu Chu , Xiaotong Li , Huihui Wang , Qingxin Ma , Guangzhi He , Qian Liu , Shuxiao Wang , Kebin He , Jincai Zhao , Hong He

{"title":"Environmental catalytic city: New engine for air pollution control","authors":"Jinzhu Ma , Biwu Chu , Xiaotong Li , Huihui Wang , Qingxin Ma , Guangzhi He , Qian Liu , Shuxiao Wang , Kebin He , Jincai Zhao , Hong He","doi":"10.1016/j.jes.2025.02.019","DOIUrl":"10.1016/j.jes.2025.02.019","url":null,"abstract":"<div><div>Air pollution is a major challenge to the improvement of urban environmental quality. The control of air pollution still faces severe challenges, especially in developing countries, such as ozone pollution control. Ozone is a typical secondary air pollutant, and its formation chemistry from its precursors (NO<em><sub>x</sub></em> and volatile organic compounds) is highly nonlinear, which caused the emission reduction of its precursors is not always effective and therefore new assisted approaches to control of ozone pollution are needed. Photocatalysis and ambient catalysis technology are expected to be applied in open atmosphere as a new booster to the direct purification of air pollutants in emission sources. In this perspective, we summarize the current knowledge about the photocatalysis and ambient catalysis technology for the removal of air pollutants under natural photothermal conditions. Based on these technologies, we propose the concept of “Environmental Catalytic City”, which refers to the spontaneous purification of low concentration urban air pollutants in the atmosphere by catalytic materials coating on the artificial surfaces, such as building surfaces in the city. In this way, the urban city with self-purification function can remove air pollution without additional energy consumption. The further improvement, development, and application of the “Environmental Catalytic City” is also discussed.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"156 ","pages":"Pages 576-583"},"PeriodicalIF":5.9,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143792761","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

Enhanced electrocatalytic oxidation of high-salinity quaternary ammonium compound wastewater using CNTs-(RuxIryO2)/Ti Anode CNTs-(RuxIryO2)/Ti阳极强化电催化氧化高盐季铵盐复合废水

IF 5.9 2区环境科学与生态学

Journal of Environmental Sciences-china Pub Date : 2025-02-25 DOI: 10.1016/j.jes.2025.02.031

Hao-Tian Liu , Han-Qing Zhao , Yi-Rui Yang , Shuang Wu , Jia-Ping Huang , Rui-Han Yu , Hongcheng Bai , Aqiang Ding , Daijun Zhang , Peili Lu

{"title":"Enhanced electrocatalytic oxidation of high-salinity quaternary ammonium compound wastewater using CNTs-(RuxIryO2)/Ti Anode","authors":"Hao-Tian Liu , Han-Qing Zhao , Yi-Rui Yang , Shuang Wu , Jia-Ping Huang , Rui-Han Yu , Hongcheng Bai , Aqiang Ding , Daijun Zhang , Peili Lu","doi":"10.1016/j.jes.2025.02.031","DOIUrl":"10.1016/j.jes.2025.02.031","url":null,"abstract":"<div><div>The organic pollutants, such as quaternary ammonium compounds, in high salinity flowback water from shale gas extraction may pose a severe risk to public health. Conventional biological technologies have limited effectiveness in the treatment of high-salt wastewaters, whereas electrocatalytic oxidation has shown potential for treating organic pollutants in high-salt flowback water. This study developed a carbon nanotubes (CNTs) doped Ru/Ir oxide coated Ti electrode CNTs-(Ru<em><sub>x</sub></em>Ir<em><sub>y</sub></em>O<sub>2</sub>)/Ti, which exhibited enhanced electrocatalytic performance for the treatment of quaternary ammonium compound in high-salt wastewater compared to the control metal oxide coated Ti anode (Ru<em><sub>x</sub></em>Ir<em><sub>y</sub></em>O<sub>2</sub>)/Ti, with pseudofirst-order reaction rate constant improved from 7.36 × 10<sup>−3</sup> to 1.12 × 10<sup>−2</sup> min<sup>−1</sup>. Moreover, the CNTs-(Ru<em><sub>x</sub></em>Ir<em><sub>y</sub></em>O<sub>2</sub>)/Ti anode electrocatalytic oxidation system exhibited excellent cycling stability. Mechanism studies indicated that the CNTs-(Ru<em><sub>x</sub></em>Ir<em><sub>y</sub></em>O<sub>2</sub>)/Ti electrode enhanced singlet oxygen (<sup>1</sup>O<sub>2</sub>) generation, which played a major role in pollutant degradation. Furthermore, the formation of high concentrations of HClO and H<sub>2</sub>O<sub>2</sub> further facilitated the generation of <sup>1</sup>O<sub>2</sub>. This study may provide an efficient and green technology for the treatment of organic pollutants in high-salt shale gas flowback water.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"157 ","pages":"Pages 879-889"},"PeriodicalIF":5.9,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144167199","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

Spatial nanopores-assisted biomimetic nanozymes for sensitive detection of organophosphorus pesticide in real samples 空间纳米孔辅助仿生纳米酶对真实样品中有机磷农药的灵敏检测

IF 5.9 2区环境科学与生态学

Journal of Environmental Sciences-china Pub Date : 2025-02-25 DOI: 10.1016/j.jes.2025.02.035

Mei Du , Xianghao Zha , Jingzhang Liu , Mengfan Niu , Maoyong Song , Guibin Jiang

{"title":"Spatial nanopores-assisted biomimetic nanozymes for sensitive detection of organophosphorus pesticide in real samples","authors":"Mei Du , Xianghao Zha , Jingzhang Liu , Mengfan Niu , Maoyong Song , Guibin Jiang","doi":"10.1016/j.jes.2025.02.035","DOIUrl":"10.1016/j.jes.2025.02.035","url":null,"abstract":"<div><div>Biomimetic nanozymes opens up new opportunities for sensitive, rapid and field detection of organophosphorus pesticides (OPs). However, it still remains challenges in how to improve the sensitivity and stability of biomimetic nanozymes under harsh conditions. Herein, we synthesized a novel biomimetic nanozyme composed of hemin and bovine serum albumin (BSA) in the nanopores of poly-l-lysine methacryloyl (PLMA) inverse opal hydrogel (PLMA-Hemin-BSA). PLMA-Hemin-BSA achieves superior peroxidase-like activity and shows high stability due to the confinement effect. A multi-enzyme cascade reaction was constructed for the colorimetric detection of five widely used OPs by integrating PLMA-Hemin-BSA with natural choline oxidase and acetylcholinesterase. The detection limits for dichlorvos, chlorpyrifos, paraoxon, methamidophos, and parathion were as low as 0.024, 0.073, 0.12, 0.56, and 1.4 ng/mL, respectively. More importantly, the average recovery rates and the relative standard deviations (RSD) of chlorpyrifos in paddy water, soil and wheat samples were 86.62 %-100.13 % and 2.08 %-8.65 %, which meet the standard of the International Union of Pure and Applied Chemistry (IUPAC, recoveries of 70 %-120 % with RSD < 20 %). This study represented advanced methods toward enhancing the activity and stability of biomimetic nanozymes via spatial nanopores-assisted strategy.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"158 ","pages":"Pages 748-760"},"PeriodicalIF":5.9,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144606075","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

Integrative insights into benzo[a]pyrene degradation mechanisms by Aspergillus fumigatus Z5: Spectroscopic, transcriptomic, and computational biological analyses 烟曲霉Z5降解苯并[a]芘机制的综合见解：光谱、转录组学和计算生物学分析

IF 5.9 2区环境科学与生态学

Journal of Environmental Sciences-china Pub Date : 2025-02-25 DOI: 10.1016/j.jes.2025.02.030

Guangming Zhang , Yong Yang , Miao Dou , Jie Pan , Jialu Du , Zhen Zhang , Ning Mao , Lingtao Luo , Shiwei Wang , Yanmei Sun

{"title":"Integrative insights into benzo[a]pyrene degradation mechanisms by Aspergillus fumigatus Z5: Spectroscopic, transcriptomic, and computational biological analyses","authors":"Guangming Zhang , Yong Yang , Miao Dou , Jie Pan , Jialu Du , Zhen Zhang , Ning Mao , Lingtao Luo , Shiwei Wang , Yanmei Sun","doi":"10.1016/j.jes.2025.02.030","DOIUrl":"10.1016/j.jes.2025.02.030","url":null,"abstract":"<div><div>High molecular weight polycyclic aromatic hydrocarbons (HMW-PAHs) pose significant environmental challenges due to their complex structures and persistent toxicity, and are difficult to be degraded by bacteria. Fungi, however, possess the ability to overcome these challenges, primarily through various enzymes with broad substrate specificity, including cytochrome P450 (CYP450), laccase, manganese peroxidase, lignin peroxidase. As a result, the development of efficient fungal strains capable of degrading HMW-PAHs is essential for advancing bioremediation strategies. In this study, <em>Aspergillus fumigatus</em> Z5 was isolated from a contaminated site and demonstrated a remarkable ability to degrade the highly recalcitrant benzo[a]pyrene, achieving a degradation rate of 75.43 %. Transcriptomic analysis revealed significant upregulation of 34 CYP450 genes. Among these genes, CYP3A4 (gene 8840) showed strong binding affinity for benzo[a]pyrene, as confirmed by molecular docking studies, indicating its key role in the biodegradable process. Furthermore, the metabolic network analysis showed that the electron transfer required for CYP450-mediated oxidative reactions enhanced mitochondrial oxidative phosphorylation and subsequently energy metabolism in <em>A. fumigatus</em> Z5. This metabolic coordination likely facilitates the complete degradation of benzo[a]pyrene. Our study illuminates the fundamental roles of CYP450 from <em>A. fumigatus</em> Z5 in benzo[a]pyrene degradation and provides novel insight into designing and implementing enhanced bioremediation strategies.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"157 ","pages":"Pages 866-878"},"PeriodicalIF":5.9,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144167198","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

Urban organic manure application enhances antibiotic resistance gene diversity and potential human pathogen abundance in invasive giant African snails 城市有机肥的施用提高了入侵非洲巨型蜗牛的抗生素抗性基因多样性和潜在的人类病原体丰度

IF 5.9 2区环境科学与生态学

Journal of Environmental Sciences-china Pub Date : 2025-02-25 DOI: 10.1016/j.jes.2025.02.028

Zhonghui Tang , Yiyue Zhang , Huayuan Shangguan , An Xie , Xueli Xu , Yong Jiang , Martin F. Breed , Xin Sun

{"title":"Urban organic manure application enhances antibiotic resistance gene diversity and potential human pathogen abundance in invasive giant African snails","authors":"Zhonghui Tang , Yiyue Zhang , Huayuan Shangguan , An Xie , Xueli Xu , Yong Jiang , Martin F. Breed , Xin Sun","doi":"10.1016/j.jes.2025.02.028","DOIUrl":"10.1016/j.jes.2025.02.028","url":null,"abstract":"<div><div>The giant African snail (<em>Achatina fulica</em>) is an invasive species served as potential vectors for antibiotic resistance genes (ARGs) and potential human bacterial pathogens. Currently, urban green spaces receive extensive organic manure additions as part of their management, may intensify the biological contamination potential of these snail vectors, thereby increasing the risk of biological pollution in green spaces. However, the specific impacts of this practice on the microbial ecology of these invasive species remain poorly understood. Here, we investigated the effects of organic manure application on the gut microbiome of giant African snails, focusing on ARGs, bacterial community structure, and potential human bacterial pathogens. Microcosm experiments compared snail gut microbiomes in different treatments (Soil: soil samples collected after manure amendment, before any snail exposure. Feces: fecal samples collected from snails that lived on manure-amended soil. Control: fecal samples collected from snails that lived on unamended soil) using 16S rRNA high-throughput sequencing and metagenomic analysis. Our results show that manure application significantly altered gut bacterial community structure and increased ARG diversity by enriching specific high-risk ARGs (such as <em>sul1</em> and <em>sul2</em> in the Feces group increased by 2.89 and 2.43 times, respectively, compared to the Control group), and the introduction of eight novel ARG subtypes, despite decreasing overall ARG abundance. Moreover, the relative abundance of potential human pathogens, particularly Pseudomonadaceae, was greatly increased by manure application. These findings reveal that organic manure application in urban green spaces can potentially enhances their role as reservoirs and vectors of ARGs and human pathogens.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"158 ","pages":"Pages 610-620"},"PeriodicalIF":5.9,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144597274","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

Bentonite supported cobalt catalyst prepared by blending method for the catalytic oxidation of desulfurization by-product sulfite: Catalytic performance and mechanism 用共混法制备膨润土负载钴催化剂催化氧化脱硫副产物亚硫酸盐：催化性能及机理

IF 5.9 2区环境科学与生态学

Journal of Environmental Sciences-china Pub Date : 2025-02-24 DOI: 10.1016/j.jes.2025.02.032

Fanbo Zeng , Jing Zhu , Feng Liu , Guoyu Zhang , Weirun Li , Wenye Li , Zhiwei Shang , Hong You , Shuxiao Wang , Zhipeng Li

{"title":"Bentonite supported cobalt catalyst prepared by blending method for the catalytic oxidation of desulfurization by-product sulfite: Catalytic performance and mechanism","authors":"Fanbo Zeng , Jing Zhu , Feng Liu , Guoyu Zhang , Weirun Li , Wenye Li , Zhiwei Shang , Hong You , Shuxiao Wang , Zhipeng Li","doi":"10.1016/j.jes.2025.02.032","DOIUrl":"10.1016/j.jes.2025.02.032","url":null,"abstract":"<div><div>Wet flue gas desulfurization (WFGD) could effectively reduce sulfur dioxide emission. However, magnesium sulfite (MgSO<sub>3</sub>), a by-product of desulfurization, was easy to result in secondary pollution. In this study, the solid catalyst Co-Bent (bentonite supported cobalt) was prepared by blending method for MgSO<sub>3</sub> oxidation with bentonite as the carrier and cobalt as the active component. At the calcination temperature of 550 °C and the Co loading level of 3 wt.%, the catalyst showed excellent catalytic performance for the oxidation of high concentration MgSO<sub>3</sub> slurry, and the oxidation rate of MgSO<sub>3</sub> was 0.13 mol/(L·h). The research indicated that the active component was uniformly distributed within porous structure of the catalyst as Co<sub>3</sub>O<sub>4</sub>, which facilitated the oxidation of SO<sub>3</sub><sup>2−</sup> catalyzed by Co<sub>3</sub>O<sub>4</sub>. Kinetic researches indicated the oxidation rate of MgSO<sub>3</sub> was influenced by the catalyst dosage, the reaction temperature, the solution pH, the airflow rate, and the SO<sub>3</sub><sup>2−</sup> concentration. Additionally, after recycling experiments, the regenerated catalyst retained its high catalytic performance for the MgSO<sub>3</sub> oxidation. The reaction mechanism for the catalytic oxidation of MgSO<sub>3</sub> by Co-Bent catalyst was also proposed. The generation of active free radicals (OH·, SO<sub>4</sub><sup>−</sup>·, SO<sub>3</sub><sup>−</sup>·, SO<sub>5</sub><sup>−</sup>·) accelerated the MgSO<sub>3</sub> oxidation. These results provide theoretical support for the treatment of MgSO<sub>3</sub> and the development of durable catalyst.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"156 ","pages":"Pages 584-595"},"PeriodicalIF":5.9,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783507","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}

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