检索结果-内蒙古大学图书馆

Pharmaceuticals and personal care products in the aquatic environment in China: a review

Journal of hazardous materials 2013年 262卷 189-211页

作者： Qingwei Bu Bin Wang Jun Huang Shubo Deng Gang Yu School of Environment THU-VEOLIA Joint Research Center for Advanced Environmental Technology Tsinghua University State key Joint Laboratory of Environment Simulation and Pollution Control Beijing 100084 PR China. Electronic address: qingweibu@***.

Pharmaceuticals and personal care products (PPCPs) have been detected as contaminants of emerging concern ubiquitously in the aquatic environment in China and worldwide. A clear picture of PPCP contamination in the Chinese aquatic environment is needed to gain insight for both research and regulatory needs (e.g. monitoring, control and management). The occurrence data of 112 PPCPs in waters and sediments in China has been reviewed. In most cases, the detected concentration of these PPCPs in waters and sediments were at ng/L and ng/g levels, which were lower than or comparable to those reported worldwide. A screening level risk assessment (SLERA) identified six priority PPCPs in surface waters, namely erythromycin, roxithromycin, diclofenac, ibuprofen, salicylic acid and sulfamethoxazole. The results of SLERA also revealed that the hot spots for PPCP pollution were those river waters affected by the megacities with high density of population, such as Beijing, Tianjin, Guangzhou and Shanghai. Limitations of current researches and implications for future research in China were discussed. Some regulatory issues were also addressed.

关键词： ACR Antibiotics CIP CLOA CTM DIC EDCs ERY ERY-H(2)O GEM IBU MDL MECs NAP ND NOECs NOR OFL OTC PCPs PNECs PPCPs ROX RQs SALA SD SLERA SMX SMZ Screening level risk assessment Sediment Surface water TCC TCS TET TMP TYL USA USEPA United states environmental Protection Agency United states of America WWTPs acute-to-chronic ratio ciprofloxacin clarithromycin clofibric acid diclofenac endocrine disrupting chemicals erythromycin erythromycin-H(2)O gemfibrozil ibuprofen measured environmental concentrations method detection level naproxen no observed effect concentrations norfloxacin not detected ofloxacin oxytetracycline personal care products pharmaceuticals and personal care products predicted no effect concentrations risk quotients roxithromycin salicylic acid screening level ecological risk assessment sulfadiazine sulfamethazine sulfamethoxazole tetracycline triclocarban triclosan trimethoprim tylosin wastewater treatment plants

来源：评论

学校读者我要写书评

暂无评论

Direct detection of adenovirus in environmental waste waters by portable optical fiber sensor platform

Direct detection of adenovirus in environmental waste waters...

引用

12th IEEE SENSORS 2013 Conference

作者： Yildirim, Nimet Li, Dan Long, Feng Gu, April Z. Bioengineering PhD Program Northeastern University Boston United States Department of Civil and Environmental Engineering Northeastern University Boston United States State Key Joint Laboratory of Environment Simulation and Pollution Control Environmental Science and Engineering Tsinghua University Beijing China Department of Environment Science and Engineering Tsinghua University Beijing China 360 Huntington Ave. Boston MA 02115 United States

ISBN: (纸本)9781467346405

Reusable and portable evanescent wave biosensor for rapid, sensitive and highly selective direct detection of adenoviruses was developed. Here, specific antibody for the hexon protein of the virus was used as a recognition element. Linear detection range was determined from 100PFU/ml to 2000PFU/ml. This direct detection system can be regenerated successfully with over 5 times without significant deterioration of the sensor performance. The developed biosensor system has high specificity towards adenovirus, and it was applied to environmental waste water samples for the detection of adenovirus with 95 to 117% recovery and 1.1 to 8.1% cv values (n=2). © 2013 IEEE.

关键词： Optical fibers

来源：评论

学校读者我要写书评

暂无评论

Contrasting microbial functional genes in saline-alkali and acidic soils of oil-contaminated sites

Contrasting microbial functional genes in saline-alkali and ...

引用

中国生态学学会微生物生态专业委员会2013年年会

作者： Yuting Liang Xu Zhang Jizhong Zhou Guanghe Li State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil ScienceChinese Academy of SciencesNo.71 East Beijing RoadNanjing 210008China Department of Botany and Microbiology Institute for Environmental GenomicsUniversity of OklahomaNormanOKUSA State Key Joint Laboratory of Environment Simulation and Pollution ControlSchool of EnvironmentTsinghua UniversityBeijing 100084China State Key Joint Laboratory of Environment Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing 100084China State Key Joint Laboratory of Environment Simulation and Pollution ControlSchool of EnvironmentTsinghua UniversityBeijing 100084China State Environmental Protection Key Laboratory of Microorganism Application and Risk Control(MARC) Tsinghua UniversityBeijingChina State Key Joint Laboratory of Environment Simulation and Pollution ControlSchool of EnvironmentTsinghua UniversityBeijing 100084China

To compare functional gene structure and diversity of microbial communities in saline-alkali and acidic oil-contaminated sites,forty soil samples were collected from two typical oil exploration sites in north and sout... 详细信息

关键词： functional genes saline-alkali soils acidic soils oil contamination

来源：评论

学校读者我要写书评

暂无评论

ASSESSMENT OF CHILDREN LEAD EXPOSURE IN A SMELTER SITE AREA IN CHINA:APPROACHES FOR THE IDENTIFICATION AND RANKING OF THE MOST RELEVANT EXPOSURE ROUTES

ASSESSMENT OF CHILDREN LEAD EXPOSURE IN A SMELTER SITE AREA ...

引用

环境安全与生态学基准/标准国际研讨会、中国毒理学会环境与生态毒理学专业委员会第三届学术研讨会、中国环境科学学会环境标准与基准专业委员会2013年学术研讨会

作者： Peizhong Li Elisa Giubilato Andrea Critto Chunye Lin Hongguang Cheng Antonio Marcomini Xiaoli Duan State Key Joint Laboratory of Environmental Simulation and Pollution Control School of EnvironmentBeijing Normal University Department of Environmental Sciences Informatics and StatisticsUniversity Ca'Foscari VeniceItaly State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental Sciences

More than 30 major lead pollution incidents had been reported in China from 2006 to 2012,and most of the victims were children living in mining and smelter *** are more vulnerable than adults to the cognitive and developmental effects of lead poisoning;therefore the assessment of risks posed by children lead exposure in China represents a priority issue for *** investigations were focused on the characterization of pollution sources and contamination of environmental media,however,the scarce availability of biomonitoring data and limited detailed exposure assessments in small industrial sites hamper the identification of the most relevant sources and exposure pathways to receptors,which are the potential key factors to be considered for preventing lead poisoning events. The application and comparison of two human exposure models has been performed in order to identify the relevance of different lead exposure routes for children in rural and smelter areas and to support the definition of effective risk management measures. A new toolbox for the integrated assessment of human exposure has been recently developed by EU researchers within 2FUN project,which coupled an environmental multimedia exposure model and an internal exposure model(physiologically based pharmacokinetic,PBPK) in the same platform. Through the application on a case study concerning children exposure in a historical Pb-Zn smelter site in southwest of China,the results of this new model were compared with the ones from the most common used Integrated Exposure Uptake Biokinetic ***,the application provided the identification of the most relevant exposure routes and the ranking of their individual contributions to the total children *** results of the application and of the comparison of the two exposure models will be presented and discussed.

关键词： ASSESSMENT OF CHILDREN LEAD EXPOSURE IN A SMELTER SITE AREA IN CHINA:APPROACHES FOR THE IDENTIFICATION AND RANKING OF THE MOST RELEVANT EXPOSURE ROUTES

来源：评论

学校读者我要写书评

暂无评论

Indoor carbonyl compounds in an academic building in Beijing, China： concentrations and influencing factors

引用

Frontiers of environmental Science & Engineering 2012年第2期6卷 184-194页

作者： Chuanjia JIANG Pengyi ZHANG State Key Joint Laboratory of Environmental Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing 100084China

Carbonyl compounds in indoor air are of great concern for their adverse health effects. Between February and May, 2009, concentrations of 13 carbonyl compounds were measured in an academic building in Beijing, China. Total concentration of the detected carbonyls ranged from 20.7 to 189.1 ***.m3, and among them acetone and formaldehyde were the most abundant, with mean concentrations of 26.4 and 22.6gg.m-3, respectively. Average indoor concentrations of other carbonyls were below I 0 gg. m^3. Principal component analysis identified a combined effect of common indoor carbonyl sources and ventilation on indoor carbonyl levels. Diurnal variations of the carbonyl compounds were investigated in one office room, and carbonyl concentrations tended to be lower in the daytime than at night, due to enhanced ventilation. Average concentrations of carbonyl compounds in the office room were generally higher in early May than in late February, indicating the influence of temperature. Carbo- nyl source emission rates from both the room and human occupants were estimated during two lectures, based on one-compartment mass balance model. The influence of human occupants on indoor carbonyl concentrations varies with environmental conditions, and may become signifi- cant in the case of a large human occupancy.

关键词： carbonyl compounds indoor air ventilation,human occupancy source emission rate （SER） principalcomponent analysis （PCA）

来源：评论

学校读者我要写书评

暂无评论

Se nanoparticle resonance scattering method for the determination of trace vitamin C

Se nanoparticle resonance scattering method for the determin...

引用

2013 3rd International Conference on Advanced Measurement and Test, AMT 2013

作者： Liu, Qing Ye Zhang, Biao Ming Liang, Ai Hui State Key Lab. Cultivation Base for the Chemistry and Molecular Eng. of Medicinal Resources Ministry of Science and Technology of China Guangxi Normal University Guilin 541004 China Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection Ministry of Education Guangxi Normal University Guilin 541004 China Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology Guangxi Normal University Guilin 541004 China

ISBN: (纸本)9783037857168

In the medium of hydrochloric acid, Vitamin C (VC) reacts with Se(VI) to form Se particles. The particles exhibit four resonance scattering peaks at 340, 400, 470 and 520 nm. VC concentration is proportional to the I340nm in the range of 0.05 to 4.0μg ml-1. Based on this fact, a new resonance scattering spectral (RSS) method has been proposed for the determination of VC with a detection limit of 0.01μg ml-1. This method was used to determination of VC in pharmaceuticals, synthetic samples with satisfactory results. © (2013) Trans Tech Publications, Switzerland.

关键词： Nanoparticles

来源：评论

学校读者我要写书评

暂无评论

Spatial variations of river water quality in Pearl River Delta, China

引用

Frontiers of Earth Science 2012年第3期6卷 291-296页

作者： Xiaoyun FAN Baoshan CUI Zhiming ZHANG School of Environment Beijing Normal University State Key Joint Laboratory of Environmental Simulation and Pollution ControlBeijing 100875China

In Pearl River Delta （PRD）, river water quality has deteriorated gradually due to population increase and ongoing industrialization and urbanization. In this study, multivariate statistic methods were used to assess water quality spatial pattern and to identify characteristics of water quality variation in the PRD. Water quality monitoring of the PRD during the year 2005 and 2008 was conducted at 25 different stations. Seventeen water quality parameters were analyzed for further studying. Results of one-way analysis of variance （ANOVA） indicated that all the parameters except air temperature, water temperature and zinc showed significant difference among monitoring stations in both dry and wet season. Monitoring stations in the PRD were separately classified into three statistically significant clusters at （Olink/Omax）（ 2 in dry and wet season, respectively. The three clusters indicated the similarity and dissimilarity of river water quality among 25 monitoring stations, corresponding to heavy pollution, moderate pollution and slight pollution. Thus, the results of this study are useful to evaluate water quality and manage water resources in the PRD.

关键词： river water quality principal componentanalysis cluster analysis Pearl River Delta （PRD）

来源：评论

学校读者我要写书评

暂无评论

Removal mechanisms of heavy metal pollution from urban runoff in wetlands

引用

Frontiers of Earth Science 2012年第4期6卷 433-444页

作者： Zhiming ZHANG Baoshan CUI Xiaoyun FAN School of Environment Beijing Normal University State Key Joint Laboratory of Environmental Simulation and Pollution Control Beijing 100875 China

Solid particles, particularly urban surface dust in urban environments contain large quantities of pollu- tants. It is considered that urban surface dust is a major pollution source of urban stormwater runoff. The storm- water runoffwashes away urban surface dust and dissolves pollutants adsorbed onto the dust and finally discharges into receiving water bodies. The quality of receiving water bodies can be deteriorated by the dust and pollutants in it. Polluted waters can be purified by wetlands with various physical, chemical, and biologic processes. These pro- cesses have been employed to treat pollutants in urban stormwater runoff for many years because purification of treatment wetlands is a natural process and a low-cost method. In this paper, we reviewed the processes involved during pollutants transport in urban environments. Parti- cularly, when the urban stormwater runoff enters into wetlands, their removal mechanisms involving various physical, chemical and biologic processes should been understood. Wetlands can remove heavy metals by absorbing and binding them and make them form a part of sediment. However, heavy metals can be released into water when the conditions changed. This information is important for the use of wetlands for removing of pollutants and reusing stormwater.

关键词： wetlands heavy metal stormwater rtmoff removal mechanisms

来源：评论

学校读者我要写书评

暂无评论

Characteristics and Sources of Light Absorbing Water-soluble Organic Carbon in China

Characteristics and Sources of Light Absorbing Water-soluble...

引用

第四届全国大气边界层物理和大气化学学术研讨会

作者： Mei Zheng Caiqing Yan Min Hu Limin Zeng Yuanhang Zhang Yele Sun Zifa Wang State Key Joint Laboratory of Environmental Simulation and Pollution Control College of Environmental Sciences and EngineeringPeking UniversityBeijing100871China State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric ChemistryInstitute of Atmospheric PhysicsChinese Academy of SciencesBeijing100029China

Organic carbonaceous aerosols were found to be light absorbing in the UV and near visible *** a high fraction of OC in PM2.5 and frequency haze in China,it’s important to study the light extinction caused by *** this work,optical properties of water-soluble organic carbon (WSOC) in Beijing and Guangzhou were ***-segregated aerosol samples were collected by Micro-Orifice Uniform Deposit Impactor (MOUDI) in Beijing,and non-size-segregated samples were collected by high-volume samplers in *** samples were ultrasonic extracted and then measured by the UV-Visible *** parameters such as light absorption coefficient,mass absorption efficiency (MAE),absorption angstrom exponent (Ap) were calculated based on the light absorption spectra *** trajectories were displayed using Hybrid Single-Particle Lagrangian Integrated Trajectory (HYPLIST) to investigate relationship between light absorbing properties and air mass *** results demonstrated that light absorption by WSOC in Beijing and Guangzhou all exhibited strong wavelength (λ) dependence and varied approximately as λ-7 and λ-6,*** value was smaller in the fine mode in ***365 was peaked in the diameter 0.56-1 μ*** bulk mass absorption of WSOC (measured at 365nm) was 1.79±0.24 and 0.71±0.20 m2/g during winter and summer in Beijing,0.85±0.21 m2/g during autumn in Guangzhou,and 0.7±0.07 and 0.31±0.07 m2/g during summer with and without influence of biomass burning,indicating higher mass absorption ability in China than *** large discrepancy between different seasons and places might be attributed to difference in chemical compositions of WSOC and precursors of secondary organic aerosol,with more influence of anthropogenic volatile organic compounds in winter than other seasons,and also might be results from biomass burning *** study indicated light absorption by WSOC was ubiquitous in the at

关键词： light absorption WSOC source size distribution Beijing Guangzhou

来源：评论

学校读者我要写书评

暂无评论

Effect of mechanical aeration on nitrogen and microbial activity in sediment-water interface from urban lake

Effect of mechanical aeration on nitrogen and microbial acti...

引用

2012 Asian Pacific Conference on Energy, Environment and Sustainable Development, APEESD 2012

作者： Chen, Jianjun Lu, Shaoyong Liao, Zaiyi Ai, Shichao Huang, Minsheng College of hydraulic and Environment Enginneering China three gorges university YiChang 443002 China Engineering and Technology Centre of Lake Research Centre of Lake Environment State Env. Protection Key Lab. for Lake Pollution Control State Key Lab. of Env. Criteria and Risk Assessment Chinese Research Academy of Env. Sciences Beijing 100012 China School of Resource and Environmental Sciences East China Normal University Shanghai 200062 China

ISBN: (纸本)9783037855683

Aeration was one of the common techniques which were focused in environmental engineering research. In this study, experiments were carried out to investigate the effect of aeration on nitrogen (N) fractions and its transformation in the sediment-water interface from urban lake. In addition, we measured the dehydrogenase (DHA) and Chla content in surface sediment to detect the changes of the microbial activity. The aim is to explore the regulation of N migration and transformation in the water-sediment interface during the treatment work of lake pollution. By mechanical aeration, we control the DO content of the overlying water at the range of 1.2-1.5 kg/L, 2.5-4.5 mg/L and 6.1-6.2 mg/L. Results showed that DO in overlying water play a role to the variation of N in water-sediment interface. NH4+-N was the mainly N fraction released from sediment, the lower DO concentration (1.2-1.5 mg/L) in overlying water is favorable to the release of NH4+-N from sediment. Whether under aerobic or anaerobic condition, the releasing of NH4+-N from sediment were both higher than its consumption in the overlying water. The benthic microbial activity of the surface sediment (0-2 cm) was higher than that from bottom (6-8 cm). And the microbial activity in surface sediment was in optimum range when the overlying water DO content was about 2.5-4.5 mg/L. © (2013) Trans Tech Publications, Switzerland.

关键词： Nitrogen

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：