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Journal of Environmental Sciences 2012年第8期24卷 1498-1503页

作者： Rui Wan Shuying Zhang shuguang xie College of Environmental Sciences and Engineering the Key Laboratory of Water and Sediment Sciences(Ministry of Education)Peking UniversityBeijing 100871China

The widespread distribution of polycyclic aromatic hydrocarbons （PAHs） in groundwater has become an important environmental issue. Knowledge of microbial community changes could aid in identification of particular microorganisms that are capable of degrading PAHs in contaminated aquifers. Therefore, 16S rRNA gene clone library analysis was used to identify the archaeal and bacterial communities in an aquifer sediment microcosm used for anaerobic anthracene degradation under methanogenic conditions. A remarkable shift of the archaeal community structure occurred after anaerobic anthracene degradation, but the types of the abundant bacterial phyla did not change. However, a decrease of both archaeal and bacterial diversity was observed. Bacterial genera Bacillus, Rhodococcus and Herbaspirillum might have links with anaerobic anthracene degradation, suggesting a role of microbial consortia. This work might add some new information for understanding the mechanism of PAH degradation under methanogenic conditions.

关键词： polvcvclic aromatic hydrocarbons (PAHs) oundwater sediment biodegradation microbial community Archaea

Seasonal variations of microbial community and antibiotic resistome in a suburb drinking water distribution system in a northern Chinese city

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Journal of Environmental Sciences 2023年第5期127卷 714-725页

作者： Yanchu Ke Wenjun Sun Zibo Jing Zhinan Zhao shuguang xie State Key Joint Laboratory of Environmental Simulation and Pollution Control College of Environmental Sciences and EngineeringPeking UniversityBeijing 100871China School of Environment Tsinghua UniversityBeijing 100084China Research Institute for Environmental Innovation(Suzhou)Tsinghua Suzhou 215163China

Antibiotic resistance genes(ARGs)are an emerging issue for drinkingwater ***,the seasonal variation of ARGs in drinking water distribution systems(DWDS)is still *** work revealed the tempo-spatial changes of microbial community,ARGs,mobile genetic elements(MGEs)co-occurring with ARGs,ARG hosts in DWDS bulk water by means of metagenome *** microbial community and antibiotic resistome varied with sampling season and ***,ammonia,chlorite and total plate count(TPC)drove the variations of microbial community ***,environmental parameters(total organic carbon(TOC),chlorite,TPC and hardness)shifted antibiotic *** and MGEs co-occurring with ARGs showed higher relative abundance in summer and autumn,which might be attributed to detached pipe *** particular,ARG-bacitracin and plasmid were the predominant ARG and MGE,*** hosts changed with season and site and were more diverse in summer and *** winter and spring,Limnohabitans and Mycobacterium were the major ARG hosts as well as the dominant genera in microbial *** addition,in summer and autumn,high relative abundance of Achromobacter and Stenotrophomonas were the hosts harboring many kinds of ARGs and MGEs at site in a residential zone(0.4 km from the water treatment plant).Compared with MGEs,microbial community had a greater contribution to the variation of antibiotic *** work gives new insights into the dynamics of ARGs in full-scale DWDS and the underlying factors.

关键词： Drinking water distribution system Seasonal change Microbial community Antibiotic resistance genes Mobile genetic elements

Comparison of Bacterioplankton Communities in Three Heavily Polluted Streams in China

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Biomedical and Environmental Sciences 2011年第2期24卷 140-145页

作者： HUANG Yi ZOU Li ZHANG ShuYing xie shuguang College of Environmental Sciences and Engineering Peking University Beijing 100871 China

Objective To compare the bacterioplankton communities in streams exposed to pollution of different types. Methods The bacterioplankton communities in three selected heavily polluted streams were investigated by using terminal‐restriction fragment length polymorphism （T‐RFLP） analysis in combination with 16S rRNA gene clone library analysis. Results Both T‐RFLP and 16S rRNA gene clone library revealed a great difference in bacterioplankton community composition in the different streams. Conclusion This work might provide some new insights into bioremediation of heavily polluted streams.

关键词： Bacterioplankton community Terminal‐restriction fragment length polymorphism (T‐RFLP) Streams Clone library

Impact of disinfection on drinking water biofilm bacterial community

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Journal of Environmental Sciences 2015年第11期27卷 200-205页

作者： Zilong Mi Yu Dai shuguang xie Chao Chen Xiaojian Zhang State Environmental Protection Key Laboratory of Microorganism Application and Risk Control (MARC) Tsinghua University School of Environment Tsinghua University State Key Joint Laboratory of Environmental Simulation and Pollution Control College of Environmental Sciences and EngineeringPeking University

Disinfectants are commonly applied to control the growth of microorganisms in drinking water distribution systems. However, the effect of disinfection on drinking water microbial community remains poorly understood. The present study investigated the impacts of different disinfectants（chlorine and chloramine） and dosages on biofilm bacterial community in bench-scale pipe section reactors. Illumina MiS eq sequencing illustrated that disinfection strategy could affect both bacterial diversity and community structure of drinking water biofilm. Proteobacteria tended to predominate in chloraminated drinking water biofilms, while Firmicutes in chlorinated and unchlorinated biofilms. The major proteobacterial groups were influenced by both disinfectant type and dosage. In addition, chloramination had a more profound impact on bacterial community than chlorination.

关键词： Drinking water distribution systems Disinfection Microbial community High-throughput sequencing Firmicutes Proteobacteria

Field experiment on biological contact oxidation process to treat polluted river water in the Dianchi Lake watershed

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Frontiers of Environmental Science & Engineering 2009年第1期3卷 38-47页

作者： Lu LI shuguang xie Hui ZHANG Donghui WEN College of Environmental Sciences and Engineering Peking UniversityBeijing 100871China

In this study two types of biological contact oxidation processes(BCOP),a step-feed(SBCOP)unit and an inter-recycle(IBCOP)unit,were designed to investigate the treatment of heavily polluted river *** Daqing River,which is the largest pollutant contributor to the Dianchi Lake,one of the most eutrophic freshwater lakes in China,was taken for the case *** was found that the SBCOP had higher adaptability and better performance in the reduction of COD,TN,and TP,which made it applicable for the treatment of polluted river water entering the Dianchi *** rate was observed to be greatly affected by the influent *** each season,the nitrification in the SBCOP was higher than that in the *** removal efficiency in the SBCOP was higher than that in the IBCOP during the winter and spring but poorer during the summer,possibly due to the inhibition of denitrification by higher dissolved oxygen level in the ***,symbiotic algaebacteria growth may be conducive to the removal of pollutants.

关键词： step-feed biological contact oxidation process(SBCOP) inter-recycle biological contact oxidation process(IBCOP) river water removal efficiency nitrogen transformation the Dianchi Lake watershed

Impact of Anthracene Addition on Microbial Community Structure in Soil Microcosms from Contaminated and Uncontaminated Sites

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Biomedical and Environmental Sciences 2011年第5期24卷 543-549页

作者： WANG QingFeng ZHANG ShuYing ZOU Li xie shuguang College of Environmental Sciences and Engineering Peking University Beijing 100871 China

Objective This paper aims to investigate the impact of anthracene addition on microbial community in agricultural soil irrigated with tap water or reclaimed *** The changes of microbial community were characterized by terminal restriction fragment length polymorphism in combination with 16S rRNA gene clone library *** A significant change in microbial community composition was observed during the biodegradation of anthracene,with dominantly enriched members from the genus *** This work might be useful for developing techniques for the isolation of novel putative PAH degrader.

关键词： Biodegradation Microbial community Methylophilus Reclaimed wastewater Polycyclic aromatic hydrocarbons (PAHs)

Metagenomic insights into the profile of antibiotic resistomes in sediments of aquaculture wastewater treatment system

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Journal of Environmental Sciences 2022年第3期34卷 345-355页

作者： Jianfei Chen Yuyin Yang Xinshu Jiang Yanchu Ke Tao He shuguang xie State Key Joint Laboratory of Environmental Simulation and Pollution Control College of Environmental Sciences and EngineeringPeking UniversityBeijing 100871China State Key Joint Laboratory of Environment Simulation and Pollution Control(SKJLESPC) Beijing Key Laboratory for Emerging Organic Contaminants Control(BKLEOC)School of EnvironmentPOPs Research CenterTsinghua UniversityBeijing 100084China South China Institute of Environmental Sciences(SCIES) Ministry of Ecology and Environment(MEE)Guangzhou 510655China

To meet the rapidly growing global demand for aquaculture products,large amounts of antibiotics were used in aquaculture,which might accelerate the evolution of antibiotic-resistant bacteria(ARB)and the propagation of antibiotic genes(ARGs).In our research,we revealed the ARGs profiles,their co-occurrence with mobile genetic elements(MGEs),and potential hosts in sediments of a crab pond wastewater purification system based on metagenomic *** residual antibiotic seems to increase the propagation of ARGs in the crab pond,but there was no clear relationship between a given antibiotic type and the corresponding resistance *** effect of aquaculture on sediment was not as profound as that of other anthropogentic activities,but increased the relative abundance of sulfon-amide resistance gene.A higher abundance of MGEs,especially plasmid,increased the po-tential ARGs dissemination risk in crab and purification *** and sulfonamide resistance genes had greater potential to transfer because they were more frequently carried by *** horizontal gene transfer was likely to occur among a variety of microorgan-isms,and various ARGs hosts including Pseudomonas,Acinetobacter,Escherichia,and Klebsiella were *** community influenced the composition of ARG hosts,and Pro-teobacteria was the predominant ***,our study provides novel insights into the environmental risk of ARGs in sediments of aquaculture wastewater treatment system.

关键词： Metagenomic sequencing Aquaculture Antibiotic resistome Antibiotic resistance genes(ARGs) Mobile genetic elements(MGEs) ARG hosts

Biostability in distribution systems in one city in southern China: Characteristics, modeling and control strategy

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Journal of Environmental Sciences 2014年第2期26卷 323-331页

作者： Pinpin Lu Xiaojian Zhang Chiqian Zhang Zhangbin Niu shuguang xie Chao Chen School of Environment Tsinghua University Department of Civil and Environmental Engineering University of Missouri Urban and Rural Planning Center Ministry of Housing and Urban-Rural Development of the People’s Republic of China College of Environmental Sciences and Engineering the Key Laboratory of Water and Sediment Sciences (Ministry of Education) Peking University

This study investigated the bacterial regrowth in drinking water distribution systems receiving finished water from an advanced drinking water treatment plant in one city in southem China. Thirteen nodes in two water supply zones with different aged pipelines were selected to monitor water temperature, dissolved oxygen （DO）, chloramine residual, assimilable organic carbon （AOC）, and heterotrophic plate counts （HPC）. Regression and principal component analyses indicated that HPC had a strong correlation with chloramine residual. Based on Chick-Watson＇s Law and the Monod equation, biostability curves under different conditions were developed to achieve the goal of HPC 100 CFU/mL. The biostability curves could interpret the scenario under various AOC concentrations and predict the required chloramine residual concentration under the condition of high AOC level. The simulation was also carded out to predict the scenario with a stricter HPC goal （≤50 CFU/mL） and determine the required chloramine residual. The biological regrowth control strategy was assessed using biostability curve analysis. The results indicated that maintaining high chloramine residual concentration was the most practical way to achieve the goal of HPC ≤ 100 CFU/mL. Biostability curves could be a very useful tool for biostability control in distribution systems. This work could provide some new insights towards biostability control in real distribution systems.

关键词： bacterial regrowth distribution system biostability AOC chloramine residual

Distribution of bacterial communities across plateau freshwater lake and upslope soils

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Journal of Environmental Sciences 2016年第5期28卷 61-69页

作者： Yihui Chen Yu Dai Yilin Wang Zhen Wu shuguang xie Yong Liu Yunnan Key Laboratory of Pollution Process and Management of Plateau Lake-Watershed Kunming 650034 China State Key Joint Laboratory of Environmental Simulation and Pollution Control College of Environmental Sciences and EngineeringPeking University Beijing 100871 China Key Laboratory of Water and Sediment Sciences (Ministry of Education) College of Environmental Sciences and Engineering Peking UniversityBeijing 100872 China

Microorganisms are involved in a variety of biogeochemical processes in natural *** differences between bacterial communities in freshwaters and upslope soils remain unclear. The present study investigated the bacterial distribution in a plateau freshwater lake,Erhai Lake（southwestern China）, and its upslope soils. Illumina MiS eq sequencing illustrated high bacterial diversity in lake sediments and soils. Sediment and soil bacterial communities were mainly composed of Proteobacteria, Acidobacteria, Actinobacteria,Bacteroidetes, Chloroflexi and Planctomycetes. However, a distinctive difference in bacterial community structure was found between soil and sediment ecosystems. Water content, nitrogen and p H affected the distribution of the bacterial community across Erhai Lake and its upslope soils. Moreover, the soil bacterial community might also be shaped by plant types. This work could provide some new insights into plateau aquatic and terrestrial microbial ecology.

关键词： Microbial community High-throughput sequencing Freshwater lake Soil Moisture

Intake of tobacco nitrosamines of smokers in various provinces of China and their cancer risk:A meta-analysis

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Journal of Environmental Sciences 2024年第7期141卷 249-260页

作者： Xiao Li Zhiwei Ye Jun Wang Pengfei Lin Xiaojin Zhang shuguang xie Chao Chen Research Institute for Environmental Innovation(Suzhou) TsinghuaSuzhouJiangsu 215163China State Key Joint Laboratory of Environmental Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing 100084China Shenzhen Key Laboratory of Organic Pollution Prevention and Control State Key Laboratory of Urban Water Resource and EnvironmentHarbin Institute of TechnologyShenzhen 518055China State Key Joint Laboratory of Environmental Simulation and Pollution Control College of Environmental Science and EngineeringPeking UniversityBeijing 100871China

Nitrosamines are a class of carcinogens which have been detected widely in food,water,some pharmaceuticals as well as *** objectives of this paper include reviewing the basic information on tobacco consumption and nitrosamine contents,and assessing the health risks of tobacco nitrosamines exposure to Chinese *** searched the publications in English from“Web of Science”and those in Chinese from the“China National Knowledge Infrastructure”in 2022 and collected 151 literatures with valid *** content of main nitrosamines in tobacco,including 4-(methylnitrosoamino)-1-(3-pyridyl)-1-butanone(NNK),N-nitrosonornicotine(NNN),N-nitrosoanatabine(NAT),N-nitrosoanabasine(NAB),total tobacco-specific nitrosamines(TSNA),and N-nitrosodimethylamine(NDMA)were *** information of daily tobacco consumption of smokers in 30 provinces of China was also ***,the intakes of NNN,NNK,NAT,NAB,TSNAs,and NDMA via tobacco smoke were estimated as 1534ng/day,591 ng/day,685 ng/day,81 ng/day,2543 ng/day,and 484 ng/day by adult smokers in30 provinces,*** cancer risk(CR)values for NNN and NNK inhalation intake were further calculated as 1.44×10^(-5)and 1.95×10^(-4).The CR value for NDMA intake via tobacco smoke(inhalation:1.66×10^(-4))indicates that NDMA is similarly dangerous in tobacco smoke when compared with the *** China,the CR values caused by average nitrosamines intake via various exposures and their order can be estimated as the following:smoke(3.75×10^(-4))>food(1.74×10^(-4))>drinking water(1.38×10^(-5)).Smokers in China averagely suffer 200%of extra cancer risk caused by nitrosamines in tobacco when compared with non-smokers.

关键词： N-nitrosamine Tobacco Cancer risk Tobacco specific nitrosamines(TSNAs) N-nitrosodimethylamine(NDMA)