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Emerging Contaminants 2016年第2期2卷 80-88页

作者： seth Newton Ulla sellströom Stuart Harrad Gang Yu cynthia A.de Wit Department of Environmental Science and Analytical Chemistry(ACES) Stockholm UniversitySE-10691 StockholmSweden Division of Environmental Health and Risk Management School of GeographyEarth and Environmental SciencesUniversity of BirminghamBirmingham B152TTUnited Kingdom Department of Environmental Science and Engineering POPs Research CentreTsinghua UniversityBeijing 100084China

One active and two passive air sampling configurations were deployed simultaneously in three offices in Beijing,China to test their comparability for sampling emerging and legacy halogenated flame retardants spanning a large range of octanoleair partition coefficients(KOA).Sampling in each office was carried out for three consecutive 28-day periods in the spring-summer of *** active sampler was run for 2.5 h at different times every day for 28 days to parallel the passive samplers and sample a total volume comparable to that sampled by the passive samplers(~20 m^3).At the end of each 28-day sampling period,a separate active air sample was taken by running the sampler pump continuously for about 2.5 *** comparability of measured concentrations varied between the air sampling configurations and for different *** predominant compound measured in nearly all samples was BDE-209,a compound known to have heavy use in *** emerging flame retardants were also detected including DBE-DBCH,PBT,HBB,DDC-CO,and *** little of the tetra-hexabrominated BDEs associated with the technical PentaBDE product was observed.

关键词： Indoor air Passive air sampling Active air sampling Flame retardants Emerging flame retardants BFR

Effect of Tide on Temporal and Spatial Distribution of Some Physical and Chemicals Parameters in the Shallow Estuary of the Kienke River (Kribi Deep sea Port Area, South Cameroon Coast)

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Open Journal of Marine Science 2022年第4期12卷 185-199页

作者： Anselme Crépin Mama Willy Karol Bodo Abouga Félix Besack Firmin landry Tadoum Bah Stéphane Onla Jennifer cynthia Rachel Sissako Mongue Frédéric Nkolo Mfoula Fabius Kouegan Durand Bernadin Djombe Kammen Dorine Mara Ngo Nola Ginette Thérèse Atoukoh Dingong laeticia Ingrig Ntangyong Gervais Mani Rose Eulalie Bekono Beyala Josué Junior Manga Tchogom Elcy Rhode Guiadem lawrence Mbeng Oben Department of Oceanography Institute of Fisheries and Aquatic Sciences The University of Douala Douala Cameroon Association of Professionals in Coastal and Aquatics Management Kribi Cameroon Hydrography service Dredging Management Unit Port Authority of Douala Douala Cameroon

The aim of this study was to highlight the effect of tide on the variation of the physicochemical parameter in the Kienké estuary. Six (06) environmental variables were monitored at nine (09) stations with the time step of one hour from 7 am to 7 pm on 4th August 2019. The hovmuller analysis showed that salinity, conductivity, total dissolved solids, and pH values increased during the flood phase and decreased during the ebb phase while oxygen concentration decreased during the flood and increased during the ebb phase. The stratification parameter has shown that the influx of seawater during high tide shifts the Kienké estuary from a well-mixed to a partially mixed environment.

关键词： Kienké Estuary Environmental Variables Flood Ebb Stratification Parame-ter

Chemicals of Emerging Arctic Concern:Preface

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Emerging Contaminants 2019年第1期5卷 1-3页

作者： cynthia A.de Wit Jennifer Balmer Derek C.G.Muir Katrin Vorkamp Simon Wilson Department of Environmental Science and Analytical Chemistry(ACES) Stockholm UniversitySE-10691StockholmSweden Arctic Monitoring and Assessment Programme The Fram CentreN-9296TromsøNorway Department of Biology The CitadelCharlestonSCUSA Canada Centre for Inland Waters Environment and Climate Change CanadaBurlingtonONL7S 1A1Canada Department of Environmental Science Arctic Research CentreAarhus UniversityFrederiksborgvej 399PO Box 358DK-4000RoskildeDenmark

*** The Arctic Monitoring and Assessment Programme(AMAP)was established as an international program for monitoring and assessing Arctic pollution in 1991,under the Arctic Environmental Protection Strategy[1].AMAP is now aWorking Group of the Arctic Council(http://***)responsible for monitoring and assessing a range of pollution-and climate change-related issues in the Arctic in order to“provide reliable and sufficient information on the status of,and threats to,the Arctic environment,and scientific advice on actions to be taken in order to support Arctic governments in their efforts to take remedial and preventive actions relating to contaminants and adverse effects of climate change”(see Ref.[2]).

关键词： Chemicals of emerging concern Arctic Persistent organic pollutants Arctic monitoring and assessment programme

体外重建皮肤与正常人皮肤基本特征的对比研究

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中华皮肤科杂志 2006年第2期39卷 61-63页

作者：侯伟 Surinder Mangal 孙建方 cynthia.l.he Mieke Bergers Pranab.K.Das 中国医学科学院中国协和医科大学皮肤病研究所南京210042 荷兰阿姆斯特丹大学医学研究中心病理科

目的用正常人的皮肤角质形成细胞和黑素细胞在体外重建皮肤,为将来用于临床、生物及药理学研究奠定基础。方法从正常儿童的包皮分离、培养角质形成细胞、黑素细胞和成纤维细胞。用成纤维细胞和I型鼠尾胶原制备真皮类似物。将角质形成细... 详细信息

目的用正常人的皮肤角质形成细胞和黑素细胞在体外重建皮肤,为将来用于临床、生物及药理学研究奠定基础。方法从正常儿童的包皮分离、培养角质形成细胞、黑素细胞和成纤维细胞。用成纤维细胞和I型鼠尾胶原制备真皮类似物。将角质形成细胞和黑素细胞接种到真皮类似物表面进行培养,制备表皮类似物。将重建的皮肤类似物和正常人皮肤进行对比研究。结果皮肤类似物的组织形态包括基底层、基底上层、角质层与正常人皮肤相似。与基底膜形成有关的标志,在皮肤类似物和正常人皮肤中的表达是相似的。角蛋白10、泛角蛋白在皮肤类似物和正常人皮肤中的表达也是相似的。结论组织形态和所检测的各种标志的表达显示,该皮肤类似物与正常人皮肤相似。

关键词：角蛋白细胞黑素细胞皮肤类似物

Salivary flow rates, per se, may not serve as consistent predictors for dental caries

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Open Journal of Stomatology 2013年第2期3卷 133-141页

作者： cynthia P. Trajtenberg Juliana A. Barros Shalizeh A. Patel leslie Miles Charles F. Streckfus Department of Diagnostic & Biomedical Sciences University of Texas School of Dentistry at Houston Houston USA Department of Medical/Surgical Rehabilitation University of Texas School of Nursing at Houston Houston USA Department of Periodontics Case Western Reserve University School of Dental Medicine Cleveland USA Department of Restorative Dentistry Prosthodontics and Biomaterials University of Texas School of Dentistry at Houston Houston USA

Background: This clinical study evaluated the effects of salivary flow rate, age, race, health status and medications on the incidence of caries. Methods:Cauca-sian and African-American men and women (n = 501), aged 22-93 years participated in the study. Stimulated (S) and unstimulated (U) parotid (P) and submandibular glands (SM) salivary secretions were collected. Stimulated whole saliva (SWS) was collected as control. Glandular stimulation was achieved using 2% citric acid at 30-second intervals to the dorsal surface of the tongue. Salivary flow rates (SFR) were calculated by total weight of saliva divided by 5 minutes and expressed in ml/minute. Coronal caries were scored using the NIDR DMFS index. Carious lesions were classified according to tooth surfaces by a calibrated single examiner. Spearman correlation coefficients were calculated to determine the association between SFR with age and percentage of carious teeth. Multiple regression analyses were calculated at (p lts: The variables gender, race, age, health status, medication usage and salivary function were not predictors for dental disease. Additionally, these risk factors were not risk factors for missing teeth. Conclusions: In conclusion, cross-sectional investigations are limited in their ability to identify the relevant variables for disease prediction. In addition, clinical and basic science investigations will be necessary to assess risk factors for dental caries.

关键词： Salivary Glands Saliva Caries Aging Medications

Sampling strategy for estimating human exposure pathways to consumer chemicals

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Emerging Contaminants 2016年第1期2卷 26-36页

作者： Eleni Papadopoulou Juan A.Padilla-Sanchez Chris D.Collins Ian T.Cousins Adrian Covaci cynthia A.de Wit Pim E.G.leonards Stefan Voorspoels Cathrine Thomsen Stuart Harrad line S.Haug Division of Environmental Medicine Norwegian Institute of Public HealthLovisenberggata 80456 OsloNorway Soil Research Centre Department of Geography and Environmental ScienceUniversity of ReadingWhiteknightsReading RG66DWUK Department of Environmental Science and Analytical Chemistry(ACES) Stockholm UniversitySE 10691 StockholmSweden Toxicological Center University of AntwerpUniversiteitsplein 12610 WilrijkBelgium Institute for Environmental Studies VU UniversityDe Boelelaan 10871081 HV AmsterdamThe Netherlands Flemish Institute for Technological Research(VITO) Boeretang 2002400 MolBelgium School of Geography Earth and Environmental SciencesUniversity of BirminghamEdgbaston B152TTUK

Human exposure to consumer chemicals has become a worldwide *** this work,a comprehensive sampling strategy is presented,to our knowledge being the first to study all relevant exposure pathways in a single cohort using multiple methods for assessment of exposure from each exposure *** selected groups of chemicals to be studied are consumer chemicals whose production and use are currently in a state of transition and are;per-and polyfluorinated alkyl substances(PFASs),traditional and“emerging”brominated flame retardants(BFRs and EBFRs),organophosphate esters(OPEs)and phthalate esters(PEs).Information about human exposure to these contaminants is needed due to existing data gaps on human exposure intakes from multiple exposure pathways and relationships between internal and external *** environment,food and biological samples were collected from 61 participants and their households in the Oslo area(Norway)on two consecutive days,during winter ***,dust,hand wipes,and duplicate diet(food and drink)samples were collected as indicators of external exposure,and blood,urine,blood spots,hair,nails and saliva as indicators of internal exposure.A food diary,food frequency questionnaire(FFQ)and indoor environment questionnaire were also *** 2000 samples were collected in total and participant views on their experiences of this campaign were collected via *** 91%of our participants were positive about future participation in a similar project,some tasks were viewed as *** the food diary and collection of duplicate food/drink portions were the tasksmost frequent reported as“hard”/“very hard”.Nevertheless,a strong positive correlation between the reported total mass of food/drinks in the food record and the total weight of the food/drinks in the collection bottles was observed,being an indication of accurate performance of the participants despite the challenges of the sampling campaign.

关键词： Biomonitoring Indoor environment Consumer products Diet Dust Non-invasive samples

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Acknowledgement

Emerging Contaminants 2019年第1期5卷 35-35页

作者： cynthia A.de Wit Department of Environmental Science and Analytical Chemistry(ACES) Stockholm UniversitySE-10692 StockholmSweden

The articles in this Special Issue of Emerging Contaminants present the results of AMAP Assessment 2016:Chemicals of Emerging Arctic *** 2016 assessment is the fourth assessment conducted by the Arctic Monitoring and Assessment Programme(AMAP)on Arctic contaminants,and updates previous assessments made in 1998,2002 and *** results of the CEAC component of the 2016 assessment are also summarized for decision-makers in the AMAP report Chemicals of Emerging Arctic Concern:Summary for Policy Makers(for further information,see ***).

关键词： Arctic knowledge summarized

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汞污染渔业的恢复

AMBIO－人类环境杂志 2007年第1期36卷 31-41页

作者： John Munthe R. A. （Drew） Bodaly Brian A. Branfireun Charles T. Driscoll cynthia C. Gilmour Reed Harris Milena Horvat Marc lucotte Olaf Malm 林宝法（译） IVl Swedish Environmental Research Institute PO BOX5302SE 400 14 GothenburgSweden Penobscot River Mercury Study（Maine） 115 Oystercatcher Place．Salt Spring IslandB．C．Canado V8K2W5 Department of Geography University of Torontoat Mississauga3359 Mississauga Road NorthMississaugaOntarioCanada L5L 1C6 Department of Civil and Environmental Engineering 151 Link HallSyracuse UniversitySyracuse．NY14244USA Smithsonian Environmental Research Centre．P．O．BOX28 647 Contees Wharf RoadEdgewater．Maryland21037 Tetra Tech Inc． 180 Forestwood DriveOakvilleOntarioCanadaL6J4E6 Department of Environmental Sciences Jose Stefan Institute．Jamova 39．SI-1000 LjubljanaSlovenia Universite du Quebe ca Montreal．GEOTOP C．P．8888SUC．Centre-VilleMontrealQuebecH3C3P8Canada lab．Radioisotopes EPF．Inst．Biofisica CCF．Universidade Federal do Rio de Janeiro 21941-900 Rio de JaneiroBrazil 不详

本文中,我们综合了有关生态系统无机汞(Hg)载荷变化与鱼体内甲基汞(MeHg)浓度之间联系的现有信息。尽管人们普遍假定水生生态系统汞载荷的增加导致鱼体内甲基汞浓度的增加,验证这一假定的定量数据尚很有限。这里,我们研究了源于一系列... 详细信息

本文中,我们综合了有关生态系统无机汞(Hg)载荷变化与鱼体内甲基汞(MeHg)浓度之间联系的现有信息。尽管人们普遍假定水生生态系统汞载荷的增加导致鱼体内甲基汞浓度的增加,验证这一假定的定量数据尚很有限。这里,我们研究了源于一系列出处的现有证据:关于被工业排放物污染的生态系统的研究;关于鱼类甲基汞对大气载荷的响应的观测资料;跨越空间和环境梯度的研究以及实验操作。本文概述了目前对从汞载荷到鱼体甲基汞的运输和转化所涉及的主要过程的了解情况。还结合影响与鱼体内甲基汞响应的时机和大小有关的汞循环和生物积累的其他因素探讨了汞载荷的作用。所得出的主要结论是,汞载荷的变化(增加或减少)将引起鱼体内甲基汞的反应,这种反应的时间和大小将根据生态系统特有的变量和所添加的汞的形态而变化。

关键词：汞污染水生生态系统载荷变化渔业甲基汞工业排放物观测资料实验操作