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Trophic transfer of mercury and methylmercury in an aquatic ecosystem impacted by municipal sewage effluents in beijing, china

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Journal of environmental sciences 2010年第8期22卷 1189-1194页

作者： Jianjie Fu, Yawei Wang, Qunfang Zhou, Guibin Jiang State Key Laboratory of environmental Chemistry and ecotoxicology, research center for eco-environmental sciences, chinese academy of sciences, beijing 100085, china. State Key Laboratory of environmental Chemistry and ecotoxicology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China

Gaobeidian Lake, located in beijing, china, serves as a recipient lake for efluents from a large municipal sewage treatment plant （MSTP）. In order to evaluate the effects of discharging MSTP efluent on the mercury contamination of the local aquatic ecosystem, sediment cores, water, plankton, fish, and turtle samples were collected from Gaobeidian Lake for mercury speciation analysis. High concentrations of total mercury （T-Hg） were detected in sediment cores （5.24.17.0 μg/g dry weight （dw）, average： 10.1 μg/g）. The ratio of methylmercury （MeHg） to T-Hg was less than 0.3% in sediments and ranged from 35% to 76% in biota samples. The highest level of T-Hg and MeHg were found in aquatic bryophyte and crucian carp （3673 and 4.7 ng/g dw, respectively）. The relative contents of MeHg were significantly correlated with trophic levels （R2 = 0.5506, p 0.001）, which confirmed that MeHg can be bio-transferred and biomagnified via food chain in this aquatic ecosystem.

关键词： methylmercury total mercury trophic levels aquatic ecosystem municipal sewage treatment plants

eco－environmental　information　system　of　Tianjin　City─Design，implementation　and　applications

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Journal of environmental sciences 1994年第2期6卷 144-154页

作者： Hu Xiaolin Yang Bangjie Zong Yaoguang Lu Li(research center for eco-environmental {4..chinese academy of {4., beijing 100085, china)

This paper describes the design, implementation and applications of theeco-environmental information system in Tianjin City, which is the kernel of the decision support sys-tem for urban eco-environmental regulation (DSSUER) The design of this information system isbased on the analysis of the requirements of users. The system features that it has expendability,maintainability and universality, makes data be shared between different components of DSSUERand provides help facilities and protection. The system is built by using database and graphic basetechnologies it consists of the main control module, data-management module and data-proassingniodule. The applications of this system is demonstrated by an example which is the case ofsuitability analysis of land use for residential areas in Tianjin.

关键词： eco-environmental information system land use database and graphic base technologies.

Exploiting pattern and sustainable development of marginal lands in the Three Gorge Reservoir Areas

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Journal of environmental sciences 2001年第2期13卷 173-179页

作者： WU Gang, LI Jing, KONG Hong mei, ZHAO Jing zhu, GAO Lin (Department of ecology System, research center for eco {4. sciences, chinese academy of sciences, beijing 100085, china) Department of ecology System Research Center for Eco- Environmental Sciences Chinese Academy of Sciences Beijing 100085 China

This paper studied the distribution and utilization status, reasonable exploitation patterns and potential productivity, and sustainable development of marginal lands in the Three Gorge Reservoir Areas. It has been pointed that problems of the soil fertility degradation, poor productivity in crop lands, natural disasters and environmental deterioration existed in all the exploited marginal lands. In order to maintain the sustainability of the marginal lands, following measure have been proposed: prohibiting cultivation in the crop lands with a slope more than 25°, restoring vegetation in the slope more than 25°, strengthening the basic agricultural construction, establishing the production base of woody feeds and oils, establishing a multi dimensional management model with reasonable structure and optimum function for forestry, agriculture and fishing.

关键词： marginal lands utilization pattern sustainable development Three Gorge Reservoir Are4

Evidence-based expert consensus on clinical management of safety of Bruton’s tyrosine kinase inhibitors(2024.

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chinese Journal of Cancer research 2024年第3期36卷 240-256页

作者： Zaiwei Song Dan Jiang Lingling Yu Yixuan Chen Daobin Zhou Yue Li Depei Wu Lingli Zhang Liyan Miao Jun Ma Jun Zhu Hongmei Jing Rongsheng Zhao the Steering Committee,the Consensus Panel and the Evidence Synthesis Group Evidence-based Pharmacy Professional Committee of chinese Pharmaceutical Association(CPA) Hospital Pharmacy Professional Committee of chinese Pharmaceutical Association(CPA) Division of Therapeutic Drug Monitoring of chinese Pharmacological Society(CPS) Expert Committee on Lymphoma of chinese Society of Clinical Oncology(CSCO) Expert Committee on Leukemia of chinese Society of Clinical Oncology(CSCO) Society of Integrative Cardio-Oncology of china Anti-Cancer Association(CACA) chinese Society of Hematology of chinese Medical Association(CMA) Hospital Pharmacy Professional Committee of Cross-Straits Medicine Exchange Association(SMEA) Department of Pharmacy Peking University Third HospitalBeijing 100191China Institute for Drug Evaluation Peking University Health Science CenterBeijing 100191China Therapeutic Drug Monitoring and Clinical Toxicology center Peking UniversityBeijing 100191China Department of Pharmacy Administration and Clinical Pharmacy School of Pharmaceutical SciencesPeking UniversityBeijing 100191China Department of Hematology Peking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100005China Department of Cardiology the First Affiliated HospitalHarbin Medical UniversityHarbin 150001China Department of Hematology the First Affiliated Hospital of Soochow UniversitySuzhou 215006China Department of Pharmacy Evidence-based Pharmacy CenterWest China Second HospitalSichuan UniversityChengdu 610041China Department of Pharmacy the First Affiliated Hospital of Soochow UniversitySuzhou 215006China Department of Hematology and Oncology Harbin Institute of Hematology and OncologyHarbin 150010China Key Laboratory of Carcinogenesis and Translational research(Ministry of Education/beijing) Department of LymphomaPeking University Cancer Hospital&InstituteBeijing 100142China Department of Hematology Peking University Third HospitalBeijing 100191China 不详

Bruton’s tyrosine kinase inhibitors(BTKis)have revolutionized the treatment of B-cell ***,safety issues related to the use of BTKis may hinder treatment continuity and further affect clinical efficacy.A comprehensive and systematic expert consensus from a pharmacological perspective is lacking for safety issues associated with BTKi treatment.A multidisciplinary consensus working group was established,comprising 35 members from the fields of hematology,cardiovascular disease,cardio-oncology,clinical pharmacy,and evidencebased *** evidence-based expert consensus was formulated using an evidence-based approach and the Delphi *** Joanna Briggs Institute Critical Appraisal(JBI)tool and Grading of Recommendations Assessment,Development,and Evaluation(GRADE)approach were used to rate the quality of evidence and grade the strength of recommendations,*** consensus provides practical recommendations for BTKis medication based on nine aspects within three domains,including the management of common adverse drug events such as bleeding,cardiovascular events,and hematological toxicity,as well as the management of drug-drug interactions and guidance for special *** multidisciplinary expert consensus could contribute to promoting a multi-dimensional,comprehensive and standardized management of BTKis.

关键词： Consensus BTK inhibitors safety adverse drug events drug-drug interactions

Effects of maize root exudates and organic acids on the desorption of phenanthrene from soils

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Journal of environmental sciences 2009年第7期21卷 920-926页

作者： ZHU Yanhong, ZHANG Shuzhen, HUANG Honglin, WEN Bei State Key Laboratory of environmental Chemistry and ecotoxicology, research center for eco-environmental sciences, chinese academy of sciences, beijing 100085, china. State Key Laboratory of environmental Chemistry and ecotoxicology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China

The effects of maize root exudates and low-molecular-weight-organic anions （LMWOAs） on the desorption of phenanthrene from eight artificially contaminated soils were evaluated. A significant negative correlation was observed between the amounts of phenanthrene desorbed and the soil organic carbon （SOC） contents （P 〈 0.01）, and the influences of soil pH and clay content on phenanthrene desorption were insignificant （P 〉 0.1）. Neither maize root exudates nor oxalate and citrate anions influenced desorption of phenanthrene with the addition of NaN3. A faster phenanthrene desorption occurred without the addition of NaN3 in the presence of maize root exudates than oxalate or citrate due to the enhanced degradation by root exudates. Without the addition of NAN3, oxalate or citrate at different concentrations could inhibit phenanthrene desorption to different extents and the inhibiting effect by citrate was more significant than by oxalate. This study leads to the conclusion that maize root exudates can not enhance the desorption under abiotic condition with the addition of NaN3 and can promote the desorption of phenanthrene in soils without the addition of NaN3.

关键词： phenanthrene desorption low-molecular-weight-organic anions (LMWOAs) root exudates soils

Degradation of furan tebufenozide in laboratory and field trials

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Science china Chemistry 2010年第8期53卷 1818-1824页

作者： GUO Cong,LI DaHui,CHEN JinHui,GUO BaoYuan,WANG HuiLi & LI JianZhong research center for eco-environmental {4.,chinese academy of {4.,beijing 100085,china research center for eco-environmental {4. Chinese Academy of Sciences Beijing China

Furan tebufenozide is a newly developed insect growth regulator and has been applied as a pesticide in agriculture in *** degradation under both laboratory and field conditions was investigated,and the degradation kinetics was fitted by simple first order kinetics (SFO) model and first order double exponential (FOD) *** studies were conducted with or without light in five simulated media (sterilized deionized water,river water,soil solution,sterilized soil and natural soil).No dissipations of furan tebufenozide were observed in sterilized aqueous and soil media under light prevented conditions,whereas degradation occurred under all the other conditions in the *** from SFO and FOD models,DT50 in the dark and light laboratory conditions was in the range of 39.7-82.5 and 1.1-8.0 days,*** results indicated that microbes and light were the main factors for the degradation of the pesticide in the *** field trials,derived from the SFO model,DT50 and DT90 were 30.3 and 100.5 days,while derived from the FOD model,DT50 and DT90 were 28.9 and 274.9 days,*** with laboratory experiments,field trials were influenced by multiple ***,the SFO model could not fit experimental data as well as the FOD model did in field trials.

关键词： uran tebufenozide dissipation soil water degradation kinetics

中国经济发展的机遇与挑战——学习中央经济工作会议精神座谈会综述

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中国工业经济 2024年第1期 5-16页

作者：中国社会科学院工业经济研究所课题组史丹不详中国社会科学院工业经济研究所

2023年12月11—12日,中央经济工作会议在北京举行。习近平总书记出席会议并发表重要讲话,全面总结2023年经济工作,深刻分析当前经济形势,系统部署2024.经济工作。会议要求,2024.要坚持稳中求进、以进促稳、先立后破,多出有利于稳预期... 详细信息

2023年12月11—12日,中央经济工作会议在北京举行。习近平总书记出席会议并发表重要讲话,全面总结2023年经济工作,深刻分析当前经济形势,系统部署2024.经济工作。会议要求,2024.要坚持稳中求进、以进促稳、先立后破,多出有利于稳预期、稳增长、稳就业的政策,在转方式、调结构、提质量、增效益上积极进取,不断巩固稳中向好的基础。要强化宏观政策逆周期和跨周期调节,继续实施积极的财政政策和稳健的货币政策,加强政策工具创新和协调配合。为深入解读2023年中央经济工作会议精神,中国社会科学院工业经济研究所“我国发展的新战略机遇与风险挑战研究”课题组邀请7位专家学者交流学习体会,立足当前经济走势,回应当下经济热点问题,为推动高质量发展建言献策。

关键词：高质量发展宏观政策科技创新城乡融合绿色低碳

Hydrolytic　dynamics　of　pesticide　N＇－（2，4.dimethylphenyl）－N－methylformamidine　in　aquatic　solution

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Journal of environmental sciences 1996年第2期8卷 185-190页

作者： Mo Hanhong Yang Kewu An Fengchun Liu Ye (research center for eco-environmental {4., chinese academy of sciences, beijing 100085, china) Res. Ctr. for eco-Environ. sciences Chinese Academy of Sciences Beijing 100085 China

The hydrolytic dynamics of pesticide N' -(2,4.dimethylphenyl)-N-methylformamidine (DMA) in aquatic solution and its degradation in simulated aquatic ecosystem were investigated. The results showed that the compound was not very stable in aqueous solution and easily decomposed in alkaline solution. It was stable below pH5 and there was obvious tendency that the compound was easily decomposed when PH was greater than 6. The reaction rate constant of DMA increased with increasing of either pH value Or temperature of reaction medium. The half-life values of hydrolysis for DMA at 25℃ were 15. 92 days at pH 6, and 1. 4. days at pH 9 , respectively. The temperature coefficient and activation energy of hydrolysis for DMA was 2. 9 and 78. 74.J. mol-1 , respectively. The degradation of DMA in simulated aquatic ecosystem was similar to that in buffer solution in the laboratory. The half-life values of degradation for DMA at 26℃ in simulated aquatic ecosystem were 3. 23 days at pH 9. 13 and 1. 4. days at pH 8. 28 , respectively.

关键词： pesticide N'- ( 2,4.dimethylphenyl)-N-methylformamidine hydrolysis degradation.

Influence of organic amendments on the sorption of pentachlorophenol on soils

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Journal of environmental sciences 2009年第4期21卷 474-480页

作者： LI Ruijuan, WEN Bei, ZHANG Shuzhen, PEI Zhiguo, SHAN Xiaoquan State Key Laboratory of environmental Chemistry and ecotoxicology, research center for eco-environmental sciences, chinese academy of sciences,beijing 100085, china State Key Laboratory of environmental Chemistry and ecotoxicology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China

The influence of pH on the sorption of pentachlorophenol （PCP） onto three organic amendments, char, humic acid （HA） and peat, and the effect of organic amendments on PCP sorption to three kinds of soils were evaluated. The sorption of PCP on these sorbents fitted the Freundlich model well, suggesting that PCP sorption isotherms were nonlinear with exponential coefficient （N） value lower than 1. The PCP sorption capacity on three organic amendments and the N values increased with decreasing pH. The sorption capacities were in the order： char 〉 HA 〉 peat. Organic amendments resulted in an enhancement of sorption capacities of soils. The N values of PCP sorption on soils were decreased by char amendment and increased by HA and peat amendments. This study demonstrated that application of traditional organic amendments led to the enhancement of PCP sorption by soils. This information may aid both in predicting environmental fates of hydrophobic ionizable organic compounds and in developing remediation strategies for them.

关键词： sorption pentachlorophenol char peat humic acid pH