全氟和多氟烷基物质(Perfluoroalkyl and Polyfluoroalkyl Substances,PFAS)作为一类典型持久性有机污染物,具有高化学稳定性、环境持久性与生物毒性,对生态环境安全和人类健康造成严重潜在威胁,开发高效的PFAS去除技术已成为当前环境...全氟和多氟烷基物质(Perfluoroalkyl and Polyfluoroalkyl Substances,PFAS)作为一类典型持久性有机污染物,具有高化学稳定性、环境持久性与生物毒性,对生态环境安全和人类健康造成严重潜在威胁,开发高效的PFAS去除技术已成为当前环境领域的研究重点与迫切需求。系统梳理了PFAS的分析检测方法及主流去除技术的研究进展,并针对现有技术的问题与发展方向提出针对性建议,以期为高效、实用的PFAS检测与去除技术研发提供理论参考与实践思路。展开更多
新污染物因来源广泛、环境行为复杂及潜在高风险,已成为全球环境科学研究的前沿热点,环境归趋模拟是揭示其环境行为与生态风险的重要方法.本研究基于2001—2025年Web of Science核心合集数据库中的相关文献,采用CiteSpace与VOSviewer两...新污染物因来源广泛、环境行为复杂及潜在高风险,已成为全球环境科学研究的前沿热点,环境归趋模拟是揭示其环境行为与生态风险的重要方法.本研究基于2001—2025年Web of Science核心合集数据库中的相关文献,采用CiteSpace与VOSviewer两种文献计量与可视化分析工具,对新污染物环境归趋模拟研究进行了系统梳理.结果表明:该领域经历了起步、稳步发展与快速增长3个阶段,中国在发文数量与国际合作中均处于主导地位;研究主题主要集中于新污染物环境归趋建模、环境行为驱动因素、污染源识别与模拟分析、气候变化影响及风险评估方向;研究热点逐步由宏观归趋分析向微观机制解析与区域风险评估转变,并形成以物理模型、化学模型、生物模型、统计模型和综合模型为主的多元建模体系.未来研究应加强多尺度、多介质与多过程模型的耦合集成,以提升复杂环境系统中新污染物归趋行为的预测能力,并为构建全球适用的风险管控框架与政策制定提供坚实支撑.相较以往多侧重于新污染物环境赋存与管理的综述,本文聚焦于环境归趋模拟方法,系统量化梳理了该领域的知识结构与演化趋势,突出了模拟研究在新污染物研究方法体系与实际应用中的关键作用.展开更多
Rui Chena,b,Tangbing Cui a,b,∗a School of Biology and Biological Engineering,South China University of Technology,Guangzhou 510006,China b Guangdong Key Laboratory of Fermentation and Enzyme Engineering,South China Un...Rui Chena,b,Tangbing Cui a,b,∗a School of Biology and Biological Engineering,South China University of Technology,Guangzhou 510006,China b Guangdong Key Laboratory of Fermentation and Enzyme Engineering,South China University of Technology,Guangzhou 510006,China The authors regret that the published version of this article contained several errors and omissions,which are described and corrected below.1.Figs.3 and 4(figure order and legends).In the published article,Figs.3 and 4 were inadvertently published in reversed order.The figures should be swapped so that the figure content matches its caption.The correct figures and their legends are provided on the following page.2.Title correction.The compound name in the published title was incorrectly typeset as“benzo[a]pyrene”The correct spelling is“benzo[a]pyrene.”3.Text corrections in Section 2.4.Several typographical errors occurred in Section 2.4(“Up-regulation of acetoin,lactate,and kanosamine biosynthesis under sodium gluconate treatment”).展开更多
Over the past decade,neonicotinoid insecticides have become the fastest-growing and most widely used class of pesticides.Initially,these compounds were considered ideal replacements for more hazardous chemicals such a...Over the past decade,neonicotinoid insecticides have become the fastest-growing and most widely used class of pesticides.Initially,these compounds were considered ideal replacements for more hazardous chemicals such as carbamates and organophosphates,due to their presumed limited impact on the environment and human health.However,neonicotinoids have since been detected in soils,surface waters,groundwater,food,and various human biological samples.Moreover,they have been shown to negatively affect aquatic organisms,including aquatic insects,crustaceans,mollusks,fish,algae/macrophytes,and amphibians.Epidemiological studies and human biomonitoring research have revealed both acute and chronic health effects,ranging from respiratory,cardiovascular,and neurological symptoms to congenital abnormalities.This review examines the effects of neonicotinoids,their ecological consequences,and the potential risks associated with human exposure.展开更多
Pyrethroids are a class of novel broad-spectrum pesticides synthesized to mimic natural pyrethrins.Due to their high efficiency,low toxicity,and safety,pyrethroids have been widely used as alternatives to organophosph...Pyrethroids are a class of novel broad-spectrum pesticides synthesized to mimic natural pyrethrins.Due to their high efficiency,low toxicity,and safety,pyrethroids have been widely used as alternatives to organophosphate and carbamate insecticides in the control of agricultural and sanitary pests.However,with the increasing use of pyrethroid pesticides,the resulting pesticide residues have posed threats to both the environment and human health.Biodegradation is considered one of the most promising methods for the removal of pyrethroids,and significant research has been conducted in this area.This review summarizes recent advances in the biodegradation of pyrethroids,including degradation by single strains,microbial consortia,and enzymes.It provides an in-depth analysis of the biodegradation pathways and catalytic mechanisms involved in the degradation of pyrethroids and outlines enhancement strategies for improving the activity of pyrethroid-degrading enzymes.The review also identifies current challenges in pyrethroid biodegradation and offers perspectives for future research.This review serves as a valuable reference for subsequent studies on pyrethroid biodegradation.展开更多
Flubendiamide is a commonly used pesticide with low water solubility and a high organic carbon sorption constant,causing it to adhere to soil particles and negatively impact soil ecosystems.First,chili plant stems,typ...Flubendiamide is a commonly used pesticide with low water solubility and a high organic carbon sorption constant,causing it to adhere to soil particles and negatively impact soil ecosystems.First,chili plant stems,typically discarded after the harvest season,represent an abundant local biomass resource with significant potential for utilization,and were converted into biochar through pyrolysis.Here,we describe the synthesis of biochar modified with iron and chitosan to increase the diversity of functions and surface functional groups of biochar.The resulting chitosan-modified magnetic biochar(CMBC)presents a full range of functional groups of chitosan and iron oxide as shown by Fourier-transform infrared spectroscopy.The correlation between flubendiamide concentration and the dose of biochar on adsorption was explored.The flubendiamide adsorption efficiency of CMBC(1%mass ratio of soil)reached 68.03%in 90 min.The highest adsorption capacity achieved was 0.95 mg·g^(−1).The flubendiamide adsorption mechanism by CMBC can be described with a pseudo-second-order kinetic model.The experiment data closely fit a Freundlich isotherm model(R^(2)=0.998),and the low residual sum of squares values demonstrate the high model applicability.In this study,we present a comprehensive overview of pesticides,alongside kinetic and isotherm model studies of flubendiamide adsorption by CMBC.We emphasize the potential of modified biochar to enhance environmental remediation applications.展开更多
Neonicotinoids(NEOs),a fourth-generation pesticide group,are extensively utilized for crop protection in agriculture.However,their excessive use can negatively impact the environment and human health.Biodegradation of...Neonicotinoids(NEOs),a fourth-generation pesticide group,are extensively utilized for crop protection in agriculture.However,their excessive use can negatively impact the environment and human health.Biodegradation offers an eco-friendly method for eliminating these insecticides.This study employed bacterial strains Stutzerimonas sp.SA1 and Pseudomonas sp.SA3,isolated from pesticide-contaminated agricultural soil,to degrade the various NEOs including acetamiprid(AC),imidacloprid(IM),thiamethoxam(TH),and clothianidin(CL).Numerous intermediate compounds were detected during biodegradation,and potential pathways were discussed.The highest reduction of chemical oxygen demand of clothianidin(87%)and acetamiprid(72%)were observed in Stutzerimonas sp.SA1 and Pseudomonas sp.SA3 were AC 72%and CL 66%respectively.A bacterial consortium effectively breakdown the NEOs through the secretion of nitrile hydratase(NH)enzyme.Fourier-transform infrared spectroscopy results confirmed the presence of functional groups alkane and carbonyl in the NEOs residue.The Gas Chromatography Mass Spectrometry data revealed that the Stutzerimonas sp.SA1 has the highest potential of biodegradation efficiency(BE)AC(89%)and IM(87%)than the other NEOs respectively.The Pseudomonas sp.SA3 shoved the higher BE in the AC(90%),IM(97%)and TH(85%)than the bacterium Stutzerimonas sp.SA1.The results suggest that these bacteria produce the degradative enzymes effectively and utilize the NEOs as a carbon source.The results suggest that these bacteria produce the NH degradative enzymes and utilize the NEOs as a carbon source.In conclusion,the strains Stutzerimonas sp.SA1 and Pseudomonas sp.SA3 were identified as potential candidate for the biomineralization and removal of NEOs contaminated environment.展开更多
文摘全氟和多氟烷基物质(Perfluoroalkyl and Polyfluoroalkyl Substances,PFAS)作为一类典型持久性有机污染物,具有高化学稳定性、环境持久性与生物毒性,对生态环境安全和人类健康造成严重潜在威胁,开发高效的PFAS去除技术已成为当前环境领域的研究重点与迫切需求。系统梳理了PFAS的分析检测方法及主流去除技术的研究进展,并针对现有技术的问题与发展方向提出针对性建议,以期为高效、实用的PFAS检测与去除技术研发提供理论参考与实践思路。
文摘新污染物因来源广泛、环境行为复杂及潜在高风险,已成为全球环境科学研究的前沿热点,环境归趋模拟是揭示其环境行为与生态风险的重要方法.本研究基于2001—2025年Web of Science核心合集数据库中的相关文献,采用CiteSpace与VOSviewer两种文献计量与可视化分析工具,对新污染物环境归趋模拟研究进行了系统梳理.结果表明:该领域经历了起步、稳步发展与快速增长3个阶段,中国在发文数量与国际合作中均处于主导地位;研究主题主要集中于新污染物环境归趋建模、环境行为驱动因素、污染源识别与模拟分析、气候变化影响及风险评估方向;研究热点逐步由宏观归趋分析向微观机制解析与区域风险评估转变,并形成以物理模型、化学模型、生物模型、统计模型和综合模型为主的多元建模体系.未来研究应加强多尺度、多介质与多过程模型的耦合集成,以提升复杂环境系统中新污染物归趋行为的预测能力,并为构建全球适用的风险管控框架与政策制定提供坚实支撑.相较以往多侧重于新污染物环境赋存与管理的综述,本文聚焦于环境归趋模拟方法,系统量化梳理了该领域的知识结构与演化趋势,突出了模拟研究在新污染物研究方法体系与实际应用中的关键作用.
文摘Rui Chena,b,Tangbing Cui a,b,∗a School of Biology and Biological Engineering,South China University of Technology,Guangzhou 510006,China b Guangdong Key Laboratory of Fermentation and Enzyme Engineering,South China University of Technology,Guangzhou 510006,China The authors regret that the published version of this article contained several errors and omissions,which are described and corrected below.1.Figs.3 and 4(figure order and legends).In the published article,Figs.3 and 4 were inadvertently published in reversed order.The figures should be swapped so that the figure content matches its caption.The correct figures and their legends are provided on the following page.2.Title correction.The compound name in the published title was incorrectly typeset as“benzo[a]pyrene”The correct spelling is“benzo[a]pyrene.”3.Text corrections in Section 2.4.Several typographical errors occurred in Section 2.4(“Up-regulation of acetoin,lactate,and kanosamine biosynthesis under sodium gluconate treatment”).
文摘Over the past decade,neonicotinoid insecticides have become the fastest-growing and most widely used class of pesticides.Initially,these compounds were considered ideal replacements for more hazardous chemicals such as carbamates and organophosphates,due to their presumed limited impact on the environment and human health.However,neonicotinoids have since been detected in soils,surface waters,groundwater,food,and various human biological samples.Moreover,they have been shown to negatively affect aquatic organisms,including aquatic insects,crustaceans,mollusks,fish,algae/macrophytes,and amphibians.Epidemiological studies and human biomonitoring research have revealed both acute and chronic health effects,ranging from respiratory,cardiovascular,and neurological symptoms to congenital abnormalities.This review examines the effects of neonicotinoids,their ecological consequences,and the potential risks associated with human exposure.
基金supported by grants from the National Natural Science Foundation of China(No.42207148)the Science and Technology Plan Project of Quanzhou,China(Nos.2025QZNS002 and 2022N030)+2 种基金the Natural Science Foundation of Fujian Province,China(No.2022J01573)the Educational Research Project for Young and Middle-Aged Teachers in Fujian Province,China(No.JAT210042)the Open Project Fund of Key Laboratory of Marine Biological Resources,Ministry of Natural Resources of China(Nos.HY202201 and HY202202)。
文摘Pyrethroids are a class of novel broad-spectrum pesticides synthesized to mimic natural pyrethrins.Due to their high efficiency,low toxicity,and safety,pyrethroids have been widely used as alternatives to organophosphate and carbamate insecticides in the control of agricultural and sanitary pests.However,with the increasing use of pyrethroid pesticides,the resulting pesticide residues have posed threats to both the environment and human health.Biodegradation is considered one of the most promising methods for the removal of pyrethroids,and significant research has been conducted in this area.This review summarizes recent advances in the biodegradation of pyrethroids,including degradation by single strains,microbial consortia,and enzymes.It provides an in-depth analysis of the biodegradation pathways and catalytic mechanisms involved in the degradation of pyrethroids and outlines enhancement strategies for improving the activity of pyrethroid-degrading enzymes.The review also identifies current challenges in pyrethroid biodegradation and offers perspectives for future research.This review serves as a valuable reference for subsequent studies on pyrethroid biodegradation.
基金supported by research funds of Jeonbuk National University in 2024 and partly supported by the National Research Foundation of Korea(NRF-2019R1A2C1006441)from the Ministry of Education.
文摘Flubendiamide is a commonly used pesticide with low water solubility and a high organic carbon sorption constant,causing it to adhere to soil particles and negatively impact soil ecosystems.First,chili plant stems,typically discarded after the harvest season,represent an abundant local biomass resource with significant potential for utilization,and were converted into biochar through pyrolysis.Here,we describe the synthesis of biochar modified with iron and chitosan to increase the diversity of functions and surface functional groups of biochar.The resulting chitosan-modified magnetic biochar(CMBC)presents a full range of functional groups of chitosan and iron oxide as shown by Fourier-transform infrared spectroscopy.The correlation between flubendiamide concentration and the dose of biochar on adsorption was explored.The flubendiamide adsorption efficiency of CMBC(1%mass ratio of soil)reached 68.03%in 90 min.The highest adsorption capacity achieved was 0.95 mg·g^(−1).The flubendiamide adsorption mechanism by CMBC can be described with a pseudo-second-order kinetic model.The experiment data closely fit a Freundlich isotherm model(R^(2)=0.998),and the low residual sum of squares values demonstrate the high model applicability.In this study,we present a comprehensive overview of pesticides,alongside kinetic and isotherm model studies of flubendiamide adsorption by CMBC.We emphasize the potential of modified biochar to enhance environmental remediation applications.
基金supported by the Ongoing Research Funding program(No.ORF-2025-398),King Saud University,Riyadh,Saudi Arabia.
文摘Neonicotinoids(NEOs),a fourth-generation pesticide group,are extensively utilized for crop protection in agriculture.However,their excessive use can negatively impact the environment and human health.Biodegradation offers an eco-friendly method for eliminating these insecticides.This study employed bacterial strains Stutzerimonas sp.SA1 and Pseudomonas sp.SA3,isolated from pesticide-contaminated agricultural soil,to degrade the various NEOs including acetamiprid(AC),imidacloprid(IM),thiamethoxam(TH),and clothianidin(CL).Numerous intermediate compounds were detected during biodegradation,and potential pathways were discussed.The highest reduction of chemical oxygen demand of clothianidin(87%)and acetamiprid(72%)were observed in Stutzerimonas sp.SA1 and Pseudomonas sp.SA3 were AC 72%and CL 66%respectively.A bacterial consortium effectively breakdown the NEOs through the secretion of nitrile hydratase(NH)enzyme.Fourier-transform infrared spectroscopy results confirmed the presence of functional groups alkane and carbonyl in the NEOs residue.The Gas Chromatography Mass Spectrometry data revealed that the Stutzerimonas sp.SA1 has the highest potential of biodegradation efficiency(BE)AC(89%)and IM(87%)than the other NEOs respectively.The Pseudomonas sp.SA3 shoved the higher BE in the AC(90%),IM(97%)and TH(85%)than the bacterium Stutzerimonas sp.SA1.The results suggest that these bacteria produce the degradative enzymes effectively and utilize the NEOs as a carbon source.The results suggest that these bacteria produce the NH degradative enzymes and utilize the NEOs as a carbon source.In conclusion,the strains Stutzerimonas sp.SA1 and Pseudomonas sp.SA3 were identified as potential candidate for the biomineralization and removal of NEOs contaminated environment.
