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Synergetic PM_(2.5) and O_(3) control strategy for the Yangtze River Delta,China

Journal of environmental Sciences 2023年第1期123卷 281-291页

作者： Zhaoxin Dong Jia Xing Fenfen Zhang Shuxiao Wang Dian Ding Hongli Wang Cheng Huang Haotian Zheng Yueqi Jiang Jiming Hao State Key Joint Laboratory of Environmental Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing 100084China State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex Beijing 100084China State Environmental Protection Key Laboratory of the Formation and Prevention of Urban Air Pollution Complex Shanghai Academy of Environmental SciencesShanghai 200233China

PM_(2.5)concentrations have dramatically reduced in key regions of China during the period 2013-2017,while O_(3)has *** there is an urgent demand to develop a synergetic regional PM_(2.5)and O_(3)control *** study develops an emission-to-concentration response surface model and proposes a synergetic pathway for PM_(2.5)and O_(3)control in the Yangtze River Delta(YRD)based on the framework of the Air Benefit and Cost and Attainment Assessment System(ABaCAS).Results suggest that the regional emissions of NOx,SO_(2),NH3,VOCs(volatile organic compounds)and primary PM_(2.5)should be reduced by 18%,23%,14%,17%and 33%compared with 2017 to achieve 25%and 5% decreases of PM_(2.5)and O_(3)in 2025,and that the emission reduction ratios will need to be 50%,26%,28%,28% and 55%to attain the National Ambient Air Quality *** effectively reduce the O_(3) pollution in the central and eastern YRD,VOCs controls need to be strengthened to reduce O_(3)by 5%,and then NOx reduction should be accelerated for air quality ***,control of primary PM_(2.5)emissions shall be prioritized to address the severe PM_(2.5)pollution in the northern *** most cities in the YRD,the VOCs emission reduction ratio should be higher than that for NOx in Spring and *** control should be increased in summer rather than winter when a strong VOC-limited regime ***,regarding the emission control of industrial processes,on-road vehicle and residential sources shall be prioritized and the joint control area should be enlarged to include Shandong,Jiangxi and Hubei Province for effective O_(3)control.

关键词： PM_(2.5) O_(3) Response surface model Synergistic control pathway Cost-benefit analysis

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Progress in enhancing the remediation performance of microbial fuel cells for contaminated groundwater

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Journal of environmental Sciences 2024年第11期145卷 28-49页

作者： Yuan Liang Dong Yu Hui Ma Tao Zhang Yi Chen Naveed Akbar Shengyan Pu State Key Laboratory of Geohazard Prevention and Geoenvironment Protection Chengdu University of TechnologyChengdu 610059China State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil&Water Pollution Chengdu University of TechnologyChengdu 610059China

Microbial fuel cells(MFCs)have become more prevalent in groundwater remediation due to their capacity for power generation,removal of pollution,ease of assembly,and low secondary *** is currently being evaluated for practical application in an effort to eliminate groundwater ***,a considerable majority of research was conducted in *** the operational circumstances including anaerobic characteristics,pH,and temperature vary at different *** addition,the complexity of contaminants and the positioning of MFCs significantly affect remediation *** the aforementioned factors into consideration,this reviewsummarizes a bibliography on the application of MFCs for the remediation of groundwater contamination during the last ten decades and assesses the impact of environmental conditions on the treatment *** design of the reactor,including configuration,dimensions,electrodes,membranes,separators,and target contaminants are *** review aims to provide practical guidance for the future application of MFCs in groundwater remediation.

关键词： Microbial fuel cells(MFCs) Contaminated groundwater Groundwater remediation Biodegradation

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Atmospheric gaseous aromatic hydrocarbons in eastern China based on mobile measurements:Spatial distribution,secondary formation potential and source apportionment

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Journal of environmental Sciences 2023年第8期130卷 102-113页

作者： Lingling Yuan Hongli Wang Yaqin Gao Guofa Ren Yiqun Lu Shengao Jing Wen Tan Liang Zhu Yu Shang Jing An Cheng Huang Institute of Environmental Pollution and Health School of Environmental and Chemical EngineeringShanghai UniversityShanghai 200444China State of Environmental Protection Key Laboratory of Formation and Prevention of Urban Air Complex Shanghai Academy of Environmental SciencesShanghai 200233China Tofwerk China Nanjing 210000China

Monocyclic aromatic hydrocarbons(MAHs)and polycyclic aromatic hydrocarbons(PAHs)are both well known as hazardous air pollutants and also important anthropogenic precursors of tropospheric ozone(O3)and secondary organic aerosols(SOA).In recent years,there have been intensive studies covering MAHs emission from various sources and their behavior under stimulated photochemical *** in-situ measurements of PAHs presence and variations in ambient air are *** we conducted large geometrical scale mobile measurements for 16 aromatic hydrocarbons(AHs,including 7 MAHs and 9 PAHs)in eastern China between October 27 and November 8,*** unique dataset has allowed for some insights in terms of AHs concentration variations,accompanying chemical composition,source contributions and spatial distributions in eastern *** general,AHs showed a clear concentration variability between the south and the north of the Yangtze River Delta(YRD).The concentrations of PAHs were approximately 9%of AHs,but contributed 23%of SOA formation *** apportionment via positive matrix factorization(PMF)model revealed that industrial processes as the largest source(44%)of observed AHs,followed by solvent usage(21%),vehicle exhaust(19%),coal combustion(11%)and coking processes(6%).In the perspective of PAHs sources,coal combustion emissions were identified as the dominating factor of a share of 41%–52%in eastern *** findings complemented the simultaneously monitoring information of PAHs and MAHs in eastern China,revealed the importance of PAHs to SOA formation and highlighted the necessity of formulating strategies to reduce emissions from anthropogenic sources and reduce risks to human health.

关键词： Monocyclic/polycyclic aromatics Spatial distribution Source apportionment Eastern China Mobile measurements

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Development of an automated photolysis rates prediction system based on machine learning

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Journal of environmental Sciences 2025年第5期151卷 211-224页

作者： Weijun Pan Sunling Gong Huabing Ke Xin Li Duohong Chen Cheng Huang Danlin Song State Key Laboratory of Severe Weather&Key Laboratory of Atmospheric Chemistry of CMA Chinese Academy of Meteorological SciencesBeijing 100081China College of Environmental Sciences and Engineering Peking UniversityBeijing 100871China State Environmental Key Laboratory of Reginal Air Quality Monitoring Guangdong Ecological Environmental Monitoring CenterGuangzhou 510308China State Environmental Protection Key Laboratory of Formation and Prevention of the Urban Air Complex Shanghai Academy of Environmental SciencesShanghai 200233China Chengdu Academy of Environmental Sciences Chengdu 610072China National Observation and Research Station of Coastal Ecological Environments in Macao Macao Environmental Research InstituteMacao University of Science and TechnologyMacao 999078China

Based on observed meteorological elements,photolysis rates(J-values)and pollutant concentrations,an automated J-values predicting system by machine learning(J-ML)has been developed to reproduce and predict the J-values of O^(1)D,NO_(2),HONO,H_(2)O_(2),HCHO,and NO_(3),which are the crucial values for the prediction of the atmospheric oxidation capacity(AOC)and secondary pollutant concentrations such as ozone(O_(3)),secondary organic aerosols(SOA).The J-ML can self-select the optimal“Model+Hyperparameters”without human *** evaluated results showed that the J-ML had a good performance to reproduce the J-values wheremost of the correlation(R)coefficients exceed 0.93 and the accuracy(P)values are in the range of 0.68-0.83,comparing with the J-values from observations and from the tropospheric ultraviolet and visible(TUV)radiation model in Beijing,Chengdu,Guangzhou and Shanghai,*** hourly prediction was also well performed with R from 0.78 to 0.81 for next 3-days and from 0.69 to 0.71 for next 7-days,*** with O_(3)concentrations by using J-values from the TUV model,an emission-driven observation-based model(e-OBM)by using the J-values from the J-ML showed a 4%-12%increase in R and 4%-30%decrease in ME,indicating that the J-ML could be used as an excellent supplement to traditional numerical *** feature importance analysis concluded that the key influential parameter was the surface solar downwards radiation for all J-values,and the other dominant factors for all J-values were 2-m mean temperature,O_(3),total cloud cover,boundary layer height,relative humidity and surface pressure.

关键词： J-values Automated prediction system Machine learning Short-term prediction O_(3)simulated improvement

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Heterogeneous reaction of NO_(2) with feldspar, three clay minerals and Arizona Test Dust

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Journal of environmental Sciences 2023年第8期130卷 65-74页

作者： Mingjin Tang Xiaohong Jia Lanxiadi Chen Wenjun Gu Chengpeng Huang FuWang Lan Luo Hongli Wang Xinming Wang Chao Peng State Key Laboratory of Organic Geochemistry Guangdong Key Laboratory of Environmental Protection and Resources Utilizationand Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and ControlGuangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhou 510640China CAS Center for Excellence in Deep Earth Science Guangzhou 510640China University of Chinese Academy of Sciences Beijing 100049China Longhua Center for Disease Control and Prevention of Shenzhen Shenzhen 518109China State Environmental Protection Key Laboratory of Formation and Prevention of Urban Air Pollution Complex Shanghai Academy of Environmental SciencesShanghai 200233China

Heterogeneous reaction of NO_(2) with mineral dust aerosol may play important roles in troposphere chemistry,and has been investigated by a number of laboratory ***,the influence of mineralogy on this reaction has not been well understood,and its impact on aerosol hygroscopicity is not yet *** work investigated heterogeneous reactions of NO_(2)(∼10 ppmv)with K-feldspar,illite,kaolinite,montmorillonite and Arizona Test Dust(ATD)at room temperature as a function of relative humidity(<1%to 80%)and reaction time(up to 24 hr).Heterogeneous reactivity towards NO_(2) was low for illite,kaolinite,montmorillonite and ATD,and uptake coefficients of NO_(2),γ(NO_(2)),were determined to be around or smaller than 1×10^(−8);K-feldspar exhibited higher reactivity towards NO_(2),and CaCO_(3) is most reactive among the nine mineral dust samples considered in this and previous *** heterogeneous reaction with NO_(2) for 24 hr,increase in hygroscopicity was nearly insignificant for illite,kaolinite and montmorillonite,and small but significant for K-feldspar;in addition,large increase in hygroscopicity was observed for ATD,although the increase in hygroscopicity was still smaller than CaCO_(3).

关键词： Mineral dust Heterogeneous reaction Hygroscopicity Mineralogy Nitrogen oxides Nitrate

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Freezing-Induced Redistribution of Fe(Ⅱ) Species within Clay Minerals for Nonlinear Variations in Hydroxyl Radical Yield and Contaminant Degradation

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Journal of Earth Science 2025年第3期 1226-1235页

作者： Dong Yu Hongbin Peng Chenglong Yu Wenwen Ji Xin Wang Shengyan Pu State Key Laboratory of Geohazard Prevention and Geoenvironment Protection Chengdu University of Technology State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental Sciences

Hydroxyl radical（·OH） formation from Fe（Ⅱ）-bearing clay mineral oxygenation in the shallow subsurface has been well documented under moderate environmental conditions. However, the impact of freezing processes on the ·OH production capability of Fe（Ⅱ）-bearing clay minerals for organic contaminant degradation, particularly in seasonally frozen soils, remains unclear. In this study, we investigated the influence of pre-freezing durations on the mineral proprieties, ·OH production, and phenol degradation during the oxygenation of reduced Fe-rich nontronite（rNAu-2） and Fe-poor montmorillonite（rSWy-3）. During the freezing process of reduced clay minerals(1 mM Fe（Ⅱ）), the content of edge surface Fe and Fe（Ⅱ） decreased by up to 46% and 58%, respectively, followed by a slight increased as clay mineral particles aggregated and subsequently partially disaggregated. As the edge surface Fe（Ⅱ） is effective in O2activation but less effective in the transformation of H2O2to ·OH, the redistribution of edge surface Fe（Ⅱ） leads to that ·OH production and phenol degradation increased initially and then decreased with pre-freezing durations ranging from 0 to 20 days. Moreover, the rate constants of phenol degradation for both the rapid and slow reaction phases also first increase and then decrease with freezing time. However, pre-freezing significantly influenced the rapid phase of phenol degradation by rNAu-2 but affected the slow phase by rSWy-3 due to the much higher edge-surface Fe（Ⅱ） content in rNAu-2. Overall, these findings provide novel insights into the mechanism of ·OH production and contaminant degradation during the freeze-thaw processes in clay-rich soils.

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Strong metal-support interaction (SMSI) in environmental catalysis: Mechanisms, application, regulation strategies, and breakthroughs

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environmental Science and Ecotechnology 2024年第6期22卷 7-24页

作者： Fuyuan Qi Jianfei Peng Zilu Liang Jiliang Guo Jiayuan Liu Tiange Fang Hongjun Mao Tianjin Key Laboratory of Urban Transport Emission Research&State Environmental Protection Key Laboratory of Urban Ambient Air Particulate Matter Pollution Prevention and Control College of Environmental Science and EngineeringNankai UniversityTianjin300071China

The strong metal-support interaction(SMSI)in supported catalysts plays a dominant role in catalytic degradation,upgrading,and remanufacturing of environmental *** studies have shown that SMSI is crucial in supported catalysts'activity and ***,for redox reactions catalyzed in environmental catalysis,the enhancement mechanism of SMSI-induced oxygen vacancy and electron transfer needs to be ***,the precise control of SMSI interface sites remains to be fully *** we provide a systematic review of SMSI's catalytic mechanisms and control strategies in purifying gaseous pollutants,treating organic wastewater,and valorizing biomass solid *** explore the adsorption and activation mechanisms of SMSI in redox reactions by examining interfacial electron transfer,interfacial oxygen vacancy,and interfacial acidic ***,we develop a precise regulation strategy of SMSI from systematical perspectives of interface effect,crystal facet effect,size effect,guest ion doping,and modification ***,we point out the drawbacks and breakthrough directions for SMSI regulation in environmental catalysis,including partial encapsulation strategy,size optimization strategy,interface oxygen vacancy strategy,and multi-component *** review article provides the potential applications of SMSI and offers guidance for its controlled regulation in environmental catalysis.

关键词： environmental catalysis Metal oxide supported catalysts Strong metal-support interaction(SMSI) Interfacial site regulation Electron transfer

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Bibliometric analysis and systematic review of electrochemical methods for environmental remediation

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Journal of environmental Sciences 2024年第10期144卷 113-136页

作者： Wenbin Huang Shibin Liu Tao Zhang Hao Wu Shengyan Pu College of Earth Sciences Chengdu University of TechnologyChengdu 610059China State Key Laboratory of Geohazard Prevention and Geoenvironment Protection(Chengdu University of Technology) Chengdu 610059China College of Ecology and Environment Chengdu University of TechnologyChengdu 610059China Key Laboratory of Biodiversity Formation Mechanism and Comprehensive Utilization of the Qinghai-Tibet Plateau in Qinghai Province Qinghai Normal UniversityXining 810008China Scientific Research Academy of Guangxi Environmental Protection Nanning 530022China

Electrochemical methods are increasingly favored for remediating polluted environments due to their environmental compatibility and reagent-saving ***,a comprehensive understanding of recent progress,mechanisms,and trends in thesemethods is currently *** of Science(WoS)databases were utilized for searching the primary data to understand the knowledge structure and research trends of publications on electrochemical methods and to unveil certain hotspots and future trends of electrochemical methods *** original data were sampled from 9080 publications in those databases with the search deadline of June 1st,*** and VOSviewer software facilitated data visualization and analysis of document quantities,source journals,institutions,authors,and *** discussed principles,influencing factors,and progress related to seven major ***,publications on this subject have experienced significant growth since *** most frequently-investigated areas in electrochemical methods included novel materials development,heavy metal remediation,organic pollutant degradation,and removal mechanism identification.“Advanced oxidation process”and“Nanocomposite”are currently trending *** major remediation mechanisms are adsorption,oxidation,and *** efficiency of electrochemical systems is influenced by material properties,system configuration,electron transfer efficiency,and power ***-Fenton exhibits significant advantages in achieving synergistic effects of anodic oxidation and electro-adsorption among the seven *** research should prioritize the improvement of electron transfer efficiency,the optimization of electrode materials,the exploration of emerging technology coupling,and the reduction in system operation and maintenance costs.

关键词： Electrochemical remediation Bibliometric analysis Heavy metals Organic pollutants Electrode materials

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Freezing-induced redistribution of Fe(II) species within clay minerals? for nonlinear variations in hydroxyl radical yield and contaminant degradation

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Journal of Earth Science 2024年

作者： Dong Yu Hongbin Peng Chenglong Yu Wenwen Ji Xin Wang Shengyan Pu State Key Laboratory of Geohazard Prevention and Geo-environment Protection， Chengdu University of Technology State Key Laboratory of Environmental Criteria and Risk Assessment， Chinese Research Academy of Environmental Sciences

Hydroxyl radical （·OH） formation from Fe（II）-bearing clay mineral oxygenation in the shallow subsurface has been well documented under moderate environmental conditions. However， the impact of freezing processes on the ·OH production capability of Fe（II）-bearing clay minerals for organic contaminant degradation， particularly in seasonally frozen soils， remains unclear. In this study， we investigated the influence of pre-freezing durations on the mineral proprieties， ·OH production， and phenol degradation during the oxygenation of reduced Fe-rich nontronite （rNAu-2） and Fe-poor montmorillonite （rSWy-3）. During the freezing process of reduced clay minerals (1 mmol/L Fe（II）)， the content of edge surface Fe and Fe（II） decreased by up to 46% and 58%， respectively， followed by a slight increased as clay mineral particles aggregated and subsequently partially disaggregated. As the edge surface Fe（II） is effective in O2activation but less effective in the transformation of H2O2to ·OH， the redistribution of edge surface Fe（II） leads to that ·OH production and phenol degradation increased initially and then decreased with pre-freezing durations ranging from 0 to 20 days. Moreover， the rate constants of phenol degradation for both the rapid and slow reaction phases also first increase and then decrease with freezing time. However， pre-freezing significantly influenced the rapid phase of phenol degradation by rNAu-2 but affected the slow phase by rSWy-3 due to the much higher edge-surface Fe（II） content in rNAu-2. Overall， these findings provide novel insights into the mechanism of ·OH production and contaminant degradation during the freeze-thaw processes in clay-rich soils.

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Promotion of symbiotic interaction between phagotrophic protists and beneficial bacteria, mediated via balancing of soil nutrients, reduces the incidence of watermelon Fusarium wilt

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Pedosphere 2025年第2期35卷 352-363页

作者： Yaoyao TONG Li WANG Chuanfa WU Haoqing ZHANG Yangwu DENG Ming CHEN Xianqing ZHENG Weiguang Lü Jianping CHEN Tida GE State Key Laboratory for Quality and Safety of Agro-Products International Science and Technology Cooperation Base for the Regulation of Soil Biological Functions and One Health of Zhejiang Province Ningbo University Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province Institute of Plant Virology Ningbo University Jiangxi Provincial Key Laboratory of Environmental Pollution Prevention and Control in Mining and Metallurgy Jiangxi University of Science and Technology Eco-environmental Protection Institute of Shanghai Academy of Agricultural Sciences

Elucidating the microbial mechanisms that trigger Fusarium wilt represents a key step in addressing the barriers to sustainable cropping. However,from the perspective of the complete microbiome, the integrated role of soil nutrients and microbial community in the fields with different rates of wilt disease remains unclear. In this study, we examined the potential interrelationships among the nutrients, bacteria, fungi, and protists in rhizospheric soils collected from the fields with watermelon cropping for 7 years at the Zhuanghang Experimental Station of Shanghai Academy of Agricultural Sciences,China. The soils collected were characterized by a high(HW, 81.25%) or low(LW, 6.25%) wilting rate. The HW soil was found to contain a higher abundance of Fusarium oxysporum(1.30-fold higher) than the LW soil, along with higher contents of available phosphorus(1.31-fold higher) and available potassium(2.39-fold higher). In addition, the interkingdom correlation between protists and bacteria in the HW soil was 2.08-fold higher than that in the LW ***, structural equation modeling revealed that an excess of soil available potassium enhanced the predation by potentially detrimental phagotrophic protists on potentially beneficial bacteria. In summary, our findings indicated that a balanced nutrient input and the interactions between protists(Cercomonas and Colpoda) and beneficial bacteria(Bacillus) played important roles in controlling the incidence of watermelon Fusarium wilt.

关键词： continuous cropping co-occurrence network Fusarium oxysporum microbial community nitrogen limitation soil-borne pathogen

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