检索结果-内蒙古大学图书馆

2012 International Symposium on Geomatics for Integrated Water Resources Management, GIWRM 2012

作者： Song, Hongyin Shi, Yuqing Wang, Lihong Department of Environmental Science Zhejiang University Hangzhou 310058 China Zhejiang Provincial Key Laboratory of Organic Pollution and Control Zhejiang University Hangzhou 310058 China

ISBN: (纸本)9781467312820

Regional environmental risk assessment of drinking-water source is considered a very effective way for us to find out the security situation and hidden danger of Drinking-water source and to discriminate the high-quality drinking-water sources for differentiated management. In this paper, reservoir type drinking-water source is selected as the object of assessment. An index system consisted of 2 parts (pollutant risk assessment index system and risk-resisting ability assessment index system) is built to qualitative and semi-quantitative evaluate. We sort out a pollutant source list which is suitable for China and at last established a practical regional environmental risk assessment method. Two reservoir-type water sources in zhejiang Province are selected as the objects for case application. Assessment results shows that this method can discriminate the drinking-water source by the value of regional environmental risk clearly. © 2012 IEEE.

关键词： Reservoirs (water)

来源：评论

学校读者我要写书评

暂无评论

Water environment safety degree assessment based on system dynamics approach

Water environment safety degree assessment based on system d...

引用

2012 International Symposium on Geomatics for Integrated Water Resources Management, GIWRM 2012

作者： Zhong, Yiming Jia, Jin Wang, Weijun Wang, Lihong Department of Environmental Science Zhejiang University Hangzhou 310058 China Zhejiang Provincial Key Laboratory of Organic Pollution and Control Zhejiang University Hangzhou 310058 China

ISBN: (纸本)9781467312820

Water environment safety is increasingly gaining public attention in recent years. To assess the degree of water environment safety, an evaluation index system associated with system dynamics (SD) was built. Water environment safety degree (WESD) is affected by a comprehensive system. As the effective tool for complex system simulation, SD approach was used to simulate the relationship between water environment and social activity. Taking zhejiang Province as an example, the study was on the assessment of WESD from 2003 to 2010 and prediction from 2011 to 2015 in high, normal, low development scenarios. Results suggest that index parameters should be revised according to the development of society in order to get more accurate and reliable assessment results, and that the approach is reasonable to mimic the actual situation and to predict the future water environment safety degree. © 2012 IEEE.

关键词： System theory

来源：评论

学校读者我要写书评

暂无评论

Chlorine substitution-dependent toxicities of polychlorinated biphenyls to the earthworm Eisenia fetida in soil

引用

Journal of Environmental Sciences 2023年第6期128卷 171-180页

作者： Jianying Zhang Mengyang He Yaoxuan Liu Lei Zhang Haojie Jiang Daohui Lin College of Environmental and Resource Sciences Zhejiang UniversityHangzhou 310058China National Demonstration Center for Experimental Environment and Resources Education Zhejiang UniversityHangzhou 310058China Institute of Environmental Health Zhejiang UniversityHangzhou 310058China Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control Hangzhou 310058China China Energy Science and Technology Research Institute Co.Ltd. Nanjing 210023China

Polychlorinated biphenyls(PCBs)with different chlorine substitution patterns often coexist in e-waste-processing ***,the single and combined toxicity of PCBs to soil organisms and the influence of chlorine substitution patterns remain largely ***,we evaluated the distinct in vivo toxicity of PCB28(a trichlorinated PCB),PCB52(a tetrachlorinated PCB),PCB101(a pentachlorinated PCB),and their mixture to earthworm Eisenia fetida in soil,and looked into the underlining mechanisms in an in vitro test using *** a 28-days exposure,all PCBs(up to 10 mg/kg)were not fatal to earthworms,but could induce intestinal histopathological changes and microbial community alterations in the drilosphere system,along with a significant weight ***,pentachlorinated PCBs with a low bioaccumulation ability showed greater inhibitory effects on the growth of earthworm than lowly chlorinated PCBs,suggesting that bioaccumulation was not the main determinant of chlorine substitution-dependent ***,in vitro assays showed that the highly chlorinated PCBs induced a high-percentage apoptosis of eleocytes in the coelomocytes and significantly activated antioxidant enzymes,indicating that the distinct cellular vulnerability to lowly/highly chlorinated PCBs was the main contributor to the PCBs *** findings emphasize the specific advantage of using earthworms in the control of lowly chlorinated PCBs in soil due to their high tolerance and accumulation ability.

关键词： Soil contamination Organochlorine Invertebrate Subchronic toxicity Coelomocyte

来源：评论

学校读者我要写书评

暂无评论

Effects of culture media on characteristics of ZnO nanoparticles and their toxicity to escherichia coli bacteria

Effects of culture media on characteristics of ZnO nanoparti...

引用

环境毒理与环境化学国际学术研讨会——亚太分会2010年会(SETAC Asia/Pacific2010)

作者： Mei Li Lizhong Zhu Daohui Lin Zhejiang Provincial Key Laboratory of Organic pollution Process and Control Zhejiang UniversityChina

来源：评论

学校读者我要写书评

暂无评论

Epidermal microorganisms contributed to the toxic mechanism of nZVI and TCEP in earthworms by robbing metal elements and nutrients

引用

Eco-Environment & Health 2024年第1期3卷 80-88页

作者： Jie Hou Meirui Yang Xinyue Wu Qiqi Chen Yuqi Lu Jianying Zhang Daohui Lin Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control Department of Environmental ScienceZhejiang UniversityHangzhou 310058China Zhejiang Ecological Civilization Academy Anji 313300China National Demonstration Center for Experimental Environment and Resources Education(Zhejiang University) Hangzhou 310058China

Disrupting effects of pollutants on symbiotic microbiota have been regarded as an important mechanism of host toxicity,with most current research focusing on the intestinal *** fact,the epidermal microbiota,which participates in the nutrient exchange between hosts and environments,could play a crucial role in host toxicity via community *** compare the contributions of intestinal and epidermal symbiotic microorganisms to host toxicity,this study designed single and combined scenarios of soil contamination[nano zerovalent iron(nZVI)and tris(2-chloroethyl)phosphate(TCEP)],and revealed the coupling mechanisms between intestinal/epidermal symbiotic bacterial communities and earthworm toxicological *** analysis showed that 15%of intestinal microbes were highly correlated with host endpoints,compared to 45%of epidermal microbes showing a similar *** comparisons revealed that key species on the epidermis were mainly heterotrophic microbes with genetic abilities to utilize metal elements and carbohydrate *** verifications demonstrated that when facing the co-contamination of nZVI and TCEP,certain symbiotic microorganisms became dominant and consumed zinc,copper,and manganese along with saccharides and amino acids,which may be responsible for the nutritional deficiencies in the host *** findings can enrich the understanding of the coupling relationship between symbiotic microorganisms and host toxicity,highlighting the importance of epidermal microorganisms in host resistance to environmental pollution.

关键词： Microbial community Host Soil pollution Joint toxicity Heterotrophic function

来源：评论

学校读者我要写书评

暂无评论

Effect of SDBS–Tween 80 mixed surfactants on the distribution of polycyclic aromatic hydrocarbons in soil–water system

引用

Journal of Soils and Sediments 2010年第6期10卷 1123-1130页

作者： Ming Zhang Lizhong Zhu Department of Environmental Science Zhejiang University Hangzhou China Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control Zhejiang University Hangzhou China

Enhancing desorption of hydrophobic organic contaminants from soils is a promising approach for the effective remediation of soils contaminated with organic compounds. The desorption efficiency of chemical reagent, such as surfactant, should be evaluated. In this study, the effect of mixed anionic–nonionic surfactants sodium dodecylbenzene sulfonate (SDBS)–Tween 80 on the distribution of polycyclic aromatic hydrocarbons in soil–water system was evaluated. Batch desorption experiments were employed to evaluate the distribution of polycyclic aromatic hydrocarbons (PAHs) and surfactants in soil–water system. PAHs and SDBS were determined by high-performance liquid chromatography, Tween 80 by spectrophotometry, and total organic carbon with a carbon analyzer. Sorption of PAHs to soil was increased at low surfactant concentration due to the effective partition phase on soil formed by sorbed surfactants. The mixture of anionic and nonionic surfactants decreased the sorption of surfactants to soil, increasing the effective surfactant concentration in solution and thus decreasing the sorption of PAHs on soil. Anionic–nonionic mixed surfactant showed better performance on desorption of PAHs from soil than single surfactant. The greatest desorption efficiency was achieved with low proportions of SDBS (SDBS/Tween80 = 1:9). SDBS–Tween 80 mixed surfactant showed the highest desorption rate with low proportion of SDBS, which indicated that the addition of relative low amount of anionic surfactant could significantly promote the desorption efficiency of PAHs by nonionic surfactants. Results obtained from this study did provide useful information in surfactant-enhanced remediation of soil and subsurface contaminated by hydrophobic organic compounds.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Environmental bioavailability:a potentially overlooked element in triggering antimicrobial resistance

引用

Science Bulletin 2022年第22期67卷 2269-2271页

作者： Han Yeong Kaw Jing Yu Xuejing Ma Bee Geok Yeo Lizhong Zhu Wei Wang Department of Environmental Science Zhejiang UniversityHangzhou 310058China Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control Hangzhou 310058China Laboratory of Organic Geochemistry(LOG) Tokyo University of Agriculture and TechnologyFuchu 183-8509Japan

Antimicrobial resistance(AMR)is unquestionably-one of the most severe,international public health crises that mankind faces now and in the next decades,with the latest data indicating global deaths quintuple over the past five years to claim nearly 5 million lives[1],which seems substantially underestimated the projected health impact(10 million deaths)and economic burden(US$100 trillion)of AMR by 2050[2].To counteract the burgeoning AMR crisis,the One Health initiative has called for international collective effort in improving human,animal and environmental health through integrated management of this interfacial *** which,the environmental dimension is often underrepresented,especially soil compartment as the origin,reservoir and transmission route for propagating antibiotic resistance genes(ARGs)in microbiota that exacerbate AMR[3].

关键词： collective reservoir resistance

来源：评论

学校读者我要写书评

暂无评论

Enhanced precipitation responses over the Tibetan Plateau following future Tambora-size volcanic eruption

引用

Advances in Climate Change Research 2024年第5期15卷 845-858页

作者： Xin-Jun GAN Lin-Shan YANG Meng ZUO Fei LIU Chao-Chao GAO College of Environmental and Resource Science Zhejiang UniversityHangzhou 310058China Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control Hangzhou 310058China State Key Laboratory of Severe Weather and Institute of Tibetan Plateau Meteorology Chinese Academy of Meteorological SciencesBeijing 100081China School of Atmospheric Sciences&Key Laboratory of Tropical Atmosphere Ocean System Ministry of Education Sun Yat-sen UniversiyZhuhai 519082China Southern Marine Science and Engineering Guangdong Laboratory Sun Yat-sen UniversityZhuhai 519082China

Hydroclimate over the Tibetan Plateau(TP)notably influences the eco-environment of the Northern *** its high elevation and complex topography,the climate in the TP shows a high sensitivity to anthropogenic warming and volcanic-induced *** mechanism by which a future volcanic or similar radiative perturbation affects precipitation in the TP under an anthropogenic warming climate must be addressed not only to enable regional adaptation but deepen our understanding of how a climate system evolves under such a dual ***,based on the Community Earth System Model version 1.2 and ensemble simulations under pre-industrial and RCP8.5 scenarios,we showed that a Tambora-sized volcanic perturbation led to severe rainfall reduction over the south TP in the following summer(June-August).Evaporation response accounted for a minor and relatively constant share of precipitation reduction following the Clausius-Clapeyron scaling,whereas dynamic processes triggered an El Nino-like response in the eastern equatorial Pacific,which suppressed the Walker and Hadley circulation and contributed to drying *** warming renders the post-Tambora hydroclimate responses with 30%higher severity as a result of the increased climatological moisture content and intensified El Nino response,which enhanced hydroclimate sensitivity and attenuated monsoon *** results illustrate the amplification effect of global warming on the plateau's hydroclimate responses to external forcings,which may add another layer of uncertainty on climate adaptation in this already complex region.

关键词： Tibetan Plateau The community earth system model Hydrological response Tambora eruption El Nino

来源：评论

学校读者我要写书评

暂无评论

α-Galactosidase interacts with persistent organic pollutants to induce oxidative stresses in rice (Oryza sativa L.)

引用

Environmental pollution 2023年第1期335卷 122353页

作者： Sun, Yingying Chen, Jie Wang, Wei Zhu, Lizhong College of Environmental and Resource Sciences Zhejiang University Zhejiang Hangzhou310058 China Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control Zhejiang Hangzhou310058 China

Persistent organic pollutants (POPs) in agricultural soil often triggered metabolic alterations and phytotoxicity in plants, ultimately threatening crop quality. Unraveling the phytotoxic mechanisms of POPs in crops is critical for evaluating their environmental risks. Herein, the molecular mechanism of POP-induced phytotoxicity in rice (Oryza sativa L.) was analyzed using metabolic profile, enzyme activity, and gene expression as linkages, including polycyclic aromatic hydrocarbons, polybrominated diphenyl ethers, polychlorinated biphenyls, and phthalate esters. Despite no observable changes in phenotypic traits (e.g., biomass and length of aboveground), the levels of reactive oxygen species (ROS) were promoted under stresses of the tested POPs, particularly 2,2′,4,4′-tetrabromodiphenyl ether (BDE-47), dibutyl phthalate (DBP), and di(2-ethylhexyl) phthalate (DEHP). Metabolomics analysis revealed that ROS contents positively correlated with metabolic perturbation levels (r = 0.83), among which the galactose metabolism was significantly inhibited when exposed to DBP, DEHP, or BDE-47. The α-Galactosidase (α-Gal) involved in galactose metabolism was targeted as the key enzyme for the phytotoxicity of DBP, DEHP, and BDE-47, which was revealed by the inhibition of saccharide levels (45.5−82.1%), the catalytic activity of α-Gal (18.5−24.3%), and the gene expression (28.5−34.5%). Molecular docking simulation suggested that the three POPs occupied the active sites of α-Gal and formed a stable protein-ligand complex, thus inhibiting the catalytic activity of α-Gal. Partial least-squares regression analysis indicated that α-Gal activity was negatively associated with hydrogen bond acceptor, rotatable bond, and topological polar surface area of POPs. The results offered novel insights into the molecular mechanisms of phytotoxicity of POPs and provided important information for evaluating the environmental risk of POPs. © 2023

关键词： organic pollutants

来源：评论

学校读者我要写书评

暂无评论

Tailoring microenvironments of single-atom catalysts with non-metal p -block elements for selective environmental processes

Environmental Functional Materials

引用

Environmental Functional Materials 2023年第3期2卷 275-289页

作者： Yue Chen Xunheng Jiang Jiang Xu Daohui Lin Xinhua Xu College of Environmental and Resource Sciences Zhejiang University Hangzhou 310058 PR China Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control Zhejiang University Hangzhou 310058 PR China

Single-atom catalysts (SACs) have emerged as promising materials for efficient environmental remediation due to their unique properties and high catalytic efficiency. The incorporation of non-metal p -block elements into the SACs framework imparts distinct electronic and chemical properties, holding promise toward highly selective catalysis. This review provides fundamentals and strategies for tailoring the microenvironments of SACs with non-metal p -block elements toward selective environmental processes. Significantly, a bridge between the doping elements and catalytic selectivity is built by exploring the impacts of their characteristics on the geometric and electronic structures of SACs, including bulk physicochemical properties, local electronic effects, and adsorption configuration and intensity of intermediates. In-depth explorations of how these elements’ incorporation affects the performance of SACs are presented for the selective generation of H 2 O 2 via oxygen reduction, selective generation of radicals via persulfate (PS)-based advanced oxidation processes, and selective reduction of CO 2 . Challenges and opportunities associated with tailoring the microenvironments of SACs are finally discussed. This review will help guide the rational design of SACs with superior performance for selective environmental processes to better deal with environmental concerns.

关键词： Single-atom catalysts Microenvironment modulation Non-metal p -block elements Selective catalysis Environmental nanotechnology

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：