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Water quality criteria research and progress

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Science China Earth Sciences 2012年第6期55卷 882-891页

作者： feng chenglian WU fengChang ZHAO XiaoLi LI HuiXian CHANG Hong State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental Sciences Beijing 100012 China

Water quality criteria (WQC) are threshold limits for pollutants or other hazard factors in the ambient water environment, which are based on scientific experiments and extrapolations. Until now, there is limited information available regarding the study of water quality criteria in China. It is imperative to launch national-level systematic WQC studies that focus on the regional characteristics of China and provide scientific support for the enactment or revision of water quality standards and environmental management. This article reviews the concept of WQC and discusses the methodology and global progress of WQC research. The article also summarizes the key scientific issues in WQC research, including species sensitivity distribution, toxicological endpoint selection, and models selection. Furthermore, we can adopt the derivation method used in the USA and divide WQC into acute and chronic criteria. Finally, considering the current status of WQC research in China, we point out important directions for future national studies, including the selection of native species and the comprehensive use of models.

关键词： water quality criteria species sensitivity environmental management biota

Toxicity mechanisms and bioavailability of copper to fish based on an adverse outcome pathway analysis

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Journal of Environmental Sciences 2023年第5期127卷 495-507页

作者： Wei Liao Ziwei Zhu chenglian feng Zhenfei Yan Yajun Hong Daqing Liu Xiaowei Jin State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental SciencesBeijing 100012China Wetland Research Center Jiangxi Academy of ForestryNanchang 330032China Key Laboratory of Poyang Lake Environment and Resource Utilization Ministry of EducationSchool of Environmental and Chemical EngineeringNanchang UniversityNanchang 330031China Jiangxi Irrigation Experiment Central Station Nanchang 330201China China National Environmental Monitoring Centre Beijing 100012China

Copper(Cu)exists in a variety of forms in different aquatic environments,and affects their *** this study we provide a systematic review on toxicity of Cu which focuses on identifying evidence in the mechanisms of Cu toxicity,and apply an adverse outcome pathway(AOP)analysis to identify multiple potential mechanisms and their interactions of Cu toxicity to *** analysis process included the mechanisms of behavior toxicant,oxidative toxicant,ion regulation disruption toxicity,as well as endocrine disruption *** was found that at low levels of Cu exposure,swimming,avoid predators,locating prey and other sensory functions will be impaired,and the organism will suffer from metabolic alkalosis and respiratory acidosis following the inhibition of the carbonic anhydrase *** main pathway of acute toxicity of Cu to fish is the inhibition of the Na^(+)/K^(+)-ATPase enzyme,and lead to reduced intracellular sodium absorption,as well as Cu-induced increased cell permeability,in turn resulting in increased sodium ion loss,leading to cardiovascular collapse and respiratory *** endocrine disruption toxicity of Cu to fish caused growth inhibition and reproductive *** addition,there are several key pathways of Cu toxicity that are affected by hardness(e.g.,Ca^(2+))and intracellular DOC concentrations,including inhibiting Cu-induction,improving branchial gas exchange,altering membrane transport functions,decreasing Na+loss,and increasing Na+*** results of the AOP analysis will provide a robust framework for future directed research on the mechanisms of Cu toxicity.

关键词： Copper Toxic effect Adverse outcome pathway Aquatic environment Risk assessment

Distribution characteristics and ecological risk assessment of PAHs in surface waters of China

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Science China Earth Sciences 2012年第6期55卷 914-925页

作者： GUO GuangHui WU fengChang HE HongPing ZHANG RuiQing LI HuiXian feng chenglian Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou 510640 China Graduate University of Chinese Academy of Sciences Beijing 100049 China State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental Sciences Beijing 100012 China

The concentrations of PAHs in the surface waters from seven river basins in China were summarized from literature published from 2000-2010. Subsequently, the risks from individual PAHs and Y. PAHs in the surface waters of China were quantified by comparing the overlap between the probability distributions of exposure concentrations with the probability distributions of toxicity data. The results show that the concentrations of 15 PAHs in the surface waters ranged from 3.09 to 38139.00 ng L-a, with a geometric mean of 474.93 ng L-1. The significantly higher concentrations of the 15 PAHs occurred in the surface waters from northern China when compared with those from southern China. The concentrations of the 15 PAHs in Chinese surface waters were higher than those in other waters worldwide. The MOSI0 （margin of safety） values were calculated at 90th percen- tile values of exposure concentrations and 10th percentile values of toxicity data, with 5.75, 0.17, 2.33, 0.30, 0.57, 1.74, 1.05, and 0.11 for Ace, Ant, Flu, BaP, Flua, Nap, Phe, and Pyr, respectively. The probabilities of the individual PAH concentrations exceeding the 10th percentile value of the toxicity data were 6.06%, 2.07%, 9.51%, and 2.07% for Nap, Ace, Phe, and Flu, re- spectively, suggesting minimal risk to aquatic organisms; however, the probabilities of BaP, Ant, Flua, and Pyr exceeding this value were 19.49%, 25.46%, 15.15%, and 30.50%, respectively, indicating potential risks. Among the individual PAHs, the ecological risk from Pyr was the highest, followed by, in descending order of risk, Ant, Bap, Flua, Phe, Nap, Flu, and Ace. Additionally, the combined ecological risk of ~ PAH8 in Chinese surface waters was significantly higher than any that of in- dividual PAHs alone. The MOS0 values in the river basins were 〈 1, except for the Haihe River Basin, suggesting a potential combined risk from E PAH8 in the other six fiver basins. The probabilities calculation indicate that low to high ecological risk

关键词： polycyclic aromatic hydrocarbons (PAHs) ecological risk assessment surface water China

Water temperature governs organophosphate ester dynamics in the aquatic food chain of Poyang Lake

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Environmental Science and Ecotechnology 2024年第5期21卷 197-207页

作者： Zhenfei Yan chenglian feng Yiping Xu Jindong Wang Nannan Huang Xiaowei Jin fengchang Wu Yingchen Bai State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental SciencesBeijing100012China College of Environment Hohai UniversityNanjing210098China Key Laboratory of Drinking Water Science and Technology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing100085China China National Environmental Monitoring Centre Beijing100012China

Organophosphate esters(OPEs)are increasingly recognized as pervasive environmental contaminants,primarily from their extensive application in flame retardants and *** their widespread presence,the intricacies of OPE bioaccumulation within aquatic ecosystems remain poorly understood,particularly the environmental determinants influencing their distribution and the bioaccumulation dynamics across aquatic food *** we show that water temperature plays a crucial role in modulating the dispersion of OPE in the aquatic environment of Poyang *** quantified OPE concentrations across various matrices,uncovering levels ranging from 0.198 to 912.622 ng L^(-1) in water,0.013e493.36 ng per g dry weight(dw)in sediment,0.026e41.92 ng per g wet weight(ww)in plankton,0.13e2100.72 ng per g dw in benthic invertebrates,and 0.31e3956.49 ng per g dw in wild fish,highlighting a pronounced bioaccumulation ***,the intestines emerged as the principal site for OPE absorption,displaying the highest concentrations among the seven tissues *** the various OPEs,tris(chloroethyl)phosphate was distinguished by its significant bioaccumulation potential within the aquatic food web,suggesting a need for heightened *** propensity for OPE accumulation was markedly higher in benthic invertebrates than wild fish,indicating a differential vulnerability within aquatic *** study lays a foundational basis for the risk assessment of OPEs as emerging contaminants and underscores the imperative to prioritize the examination of bioaccumulation effects,particularly in benthic invertebrates,to inform future environmental safeguarding strategies.

关键词： Organophosphate esters Driving factor Bioaccumulation and biomagnification Ecological risk

Organophosphate esters cause thyroid dysfunction via multiple signaling pathways in zebrafish brain

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Environmental Science and Ecotechnology 2022年第4期12卷 26-36页

作者： Zhenfei Yan chenglian feng Xiaowei Jin Fangkun Wang Cong Liu Na Li Yu Qiao Yingchen Bai fengchang Wu John P.Giesy State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental SciencesBeijing100012China College of Environment Hohai UniversityNanjing210098China China National Environmental Monitoring Centre Beijing100012China Department of Preventive Veterinary Medicine College of Veterinary MedicineShandong Agricultural UniversityTaian271018China Key Laboratory of Drinking Water Science and Technology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing100085China Department of Veterinary Biomedical Sciences University of SaskatchewanSaskatoonSKCanada Toxicology Centre University of SaskatchewanSaskatoonSKCanada Department of Environmental Sciences Baylor UniversityWacoTXUSA

Organophosphate esters(OPEs)are widespread in various environmental media,and can disrupt thyroid endocrine signaling *** by which OPEs disrupt thyroid hormone(TH)signal transduction are not fully ***,we present in vivo-in vitro-in silico evidence establishing OPEs as environmental THs competitively entering the brain to inhibit growth of zebrafish via multiple signaling *** can bind to transthyretin(TTR)and thyroxine-binding globulin,thereby affecting the transport of TH in the blood,and to the brain by TTR through the blood-brain *** GH3 cells were exposed to OPEs,cell proliferation was significantly inhibited given that OPEs are competitive inhibitors of *** diphenyl phosphate was shown to be an effective antagonist of *** exposure to OPEs significantly inhibited the growth of zebrafish by interfering with thyroperoxidase and thyroglobulin to inhibit TH *** on comparisons of modulations of gene expression with the Gene Ontology and Kyoto Encyclopedia of Genes and Genomes databases,signaling pathways related to thyroid endocrine functions,such as receptor-ligand binding and regulation of hormone levels,were identified as being affected by exposure to *** were also associated with the biosynthesis and metabolism of lipids,and neuroactive ligand-receptor *** findings provide a comprehensive understanding of the mechanisms by which OPEs disrupt thyroid pathways in zebrafish.

关键词： Organophosphate ester Molecular docking simulation Competitive inhibition assay Thyroid endocrine function Transcriptome sequencing

Resilient water quality management: Insights from Japan's environmental quality standards for conserving aquatic life framework

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Environmental Science and Ecotechnology 2024年第6期22卷 93-108页

作者： Zihan Xu Ying Wang Li Xie Di Shi Jia He Yanqing Chen chenglian feng John P.Giesy Kenneth M.Y.Leung fengchang Wu College of Water Sciences Beijing Normal UniversityBeijing100875China State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental SciencesBeijing100012China School of Materials Science and Engineering Beihang UniversityBeijing100191China Department of Civil Engineering Nagoya Institute of Technology(Nitech)Nagoya4668555Japan Research&Development Affairs Office Tsinghua UniversityBeijing100084China Department of Veterinary Biomedical Sciences and Toxicology Centre University of SaskatchewanSaskatoonSaskatchewanS7N 5B3Canada Department of Integrative Biology and Center for Integrative Toxicology Michigan State UniversityEast LansingMI48895USA Department of Environmental Sciences Baylor UniversityWacoTX76798-7266USA State Key Laboratory of Marine Pollution and Department of Chemistry City University of Hong KongHong Kong999077China

Currently,chemicals and waste are recognized as key drivers of habitat degradation and biodiversity loss in aquatic *** ensure vibrant habitats for aquatic species and maintain a sustainable aquatic food supply system,Japan promulgated its Environmental Quality Standards for the Conservation of Aquatic Life(EQS-CAL),based on its own aquatic life water quality criteria(ALWQC)derivation method and application *** we overview Japan's EQS-CAL framework and highlight their best practices by examining the framework systems and related *** experiences from Japan's EQS-CAL system include:(1)Classifying six types of aquatic organisms according to their adaptability to habitat status;(2)Using a risk-based chemical screening system for three groups of chemical pollutants;(3)Recommending a five-step method for determining ALWQC values based on the most sensitive life stage of the most sensitive species;(4)Applying site-specific implementation mechanisms through a series of Plan-Do-Check-Act *** paper offers scientific references for other jurisdictions,aiding in the development of more resilient ALWQC systems that can maintain healthy environments for aquatic life and potentially mitigate ongoing threats to human societies and global aquatic biodiversity.

关键词： Aquatic life water quality criteria Chemicals Framework Resilient systems Species adaptability

Toxicokinetics and the related metabolites in rainbow trout(Oncorhynchus mykiss) after exposure to decabromodiphenyl ether

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Science China Chemistry 2010年第11期53卷 2379-2386页

作者： feng chenglian,XU YiPing,ZHA JinMiao,LUO Qian,SHAN XiaoQuan & WANG ZiJian State Key Laboratory of Environmental Aquatic Chemistry Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China State Key Laboratory of Environmental Aquatic Chemistry Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing China

Decabromodiphenyl ether(BDE209) is poorly absorbed by mammals,and little information is available on the toxicokinetics of BDE209 and its metabolites in *** the present study,rainbow trout(Oncorhynchus mykiss) were administered to 100 ng/g and 500 ng/g body wet weight of BDE209 via a single intraperitoneal injection and parent BDE209 and its metabolites were sequentially monitored for 28 *** results showed that toxicokinetic profiles of BDE209 could be described by the one-compartment *** the higher dose group(500 ng/g wet weight),the calculated half-life(t1/2) and elimination rate(ke) were 17.7 d and 0.039/d in the liver,and 100.3 d and 0.007/d in the muscle,*** major methoxylated brominated diphenyl ethers(MeO-BDEs) were detected with 2,2',4,4'-tetrabromo-5-methoxydiphenyl ether(5-MeO-BDE47) being detected in all tissue *** was no significant temporal change of 5-MeO-BDE47 concentration in the muscle,whereas an exponential increase was observed in the ***,the metabolism rate of BDE209 depended on the administered ***209 was hardly accumulated in the muscle of rainbow trout,while the liver was a primary metabolic ***-BDEs were formed via metabolism of BDE209,which probably played a significant role in fish toxicology as a potential indicator.

关键词： decabromodiphenyl ether(BDE209) polybrominated diphenyl ethers(PBDEs) methoxylated brominated diphenyl ethers(MeO-BDEs) toxicokinetics rainbow trout

Debrominated and methoxylated polybrominated diphenyl ether metabolites in rainbow trout(Oncorhynchus mykiss) after exposure to decabromodiphenyl ether

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Journal of Environmental Sciences 2010年第9期22卷 1425-1434页

作者： chenglian feng,Yiping Xu,Yue He,Qian Luo,Jinmiao Zha,Zijian Wang State Key Laboratory of Environmental Aquatic Chemistry,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China. State Key Laboratory of Environmental Aquatic Chemistry Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China

Decabromodiphenyl ether （BDE209） is the primary component in a commonly used flame retardant. Previous studies had proved that BDE209 itself was not toxic, while its metabolites including debrominated diphenyl ethers （De-BDEs） and methoxylated brominated diphenyl ethers （MeO-BDEs） posed a potential threat to organisms. Many studies had indicated that BDE209 could metabolize quickly in mammals, but lacking in the basic data about the metabolism of BDE209 in fish. In the present study, two replicate treatment groups of rainbow trout （Oncorhynchus rnykiss） were exposed to BDE209 via a single intraperitoneal injection approximately 100 and 500 ng/g, respectively. Muscle, liver and blood samples were collected to analyze the specific metabolites on day 1 and day 28 post injection. The highest concentration of BDE209 was detected in muscle tissues, from 796.1 ng/g wet weight （day 1） to 687.1 ng/g wet weight （day 28） in high dose group, suggesting that BDE209 could accumulate slightly in muscle tissues. However, BDE209 was not detected in the blood for all treatments. Most congeners of De-BDEs were found in muscle and liver tissues, with the highest concentration in the liver. The main De-BDEs were nona-, octa-, hepta- and penta-De-BDEs. A total of seven MeO-BDE metabolites were observed among different fish tissues. Blood had the highest contribution of the MeO-BDE metabolites. Each MeO-BDE congener increased over the 28 days. These results in contrast to other studies suggested possible species-specific differences in metabolic abilities.

关键词： decabromodiphenyl ether (BDE209) methoxylated brominated diphenyl ethers (MeO-BDEs) debrominated diphenyl ethers (De-BDEs) rainbow trout

基于生态风险的土壤短链氯化石蜡环境基准研究

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地学前缘 2024年第2期31卷 54-63页

作者：蒿梦秋月刘大庆闫振飞冯承莲中国环境科学研究院环境基准与风险评估国家重点实验室北京100012

短链氯化石蜡(Short Chain Chlorinated Paraffins,SCCPs)是一种持久性有机污染物,广泛应用于电缆、人造革等工业生产中,具有很强的生物毒性,并可以通过多种途径进入土壤环境,威胁着土壤生态环境安全。针对新污染物之一的SCCPs,已经有... 详细信息

短链氯化石蜡(Short Chain Chlorinated Paraffins,SCCPs)是一种持久性有机污染物,广泛应用于电缆、人造革等工业生产中,具有很强的生物毒性,并可以通过多种途径进入土壤环境,威胁着土壤生态环境安全。针对新污染物之一的SCCPs,已经有相关研究做出了基于淡水环境的基准,而目前关于SCCPs的土壤生态环境基准和风险的研究仍旧缺乏。鉴于此,本研究分别采用物种敏感度分布法和分配系数法推导了土壤中SCCPs的生态环境基准阈值,并对我国典型土壤中的生态风险进行了评价。结果表明:采用物种敏感度分布法得出土壤的无效应浓度为71.46mg/kg;采用分配系数法得到土壤的无效应浓度为10.1mg/kg。经过与相关研究对比,最终选择利用分配系数法得到的基准值作为SCCPs的土壤生态环境基准值。由于物种选择和研究方法的差异性等,本研究获得的SCCPs土壤生态环境基准与其他国家存在一定差异。另外,运用风险商值法对土壤中的SCCPs环境风险进行评价,结果表明,目前我国主要地区的不同土壤类型中SCCPs的HQ值为7.23×10^(-5)~0.5017,为低风险。本研究的结果可为土壤SCCPs环境质量标准的制定与环境风险管理提供参考依据。

关键词：短链氯化石蜡土壤环境基准物种敏感度分布生态风险评价