furan sampling Articles

  • Dioxins and Furans on the Equity-5

    Dioxins and furans are byproducts of several different industrial processes, including incineration and paper bleaching. The extreme toxicity of several of these compounds has made their analysis in environmental samples increasingly important. In this application, the 60m x 0.25mm ID x 0.25µm Equity-5 was used to separate all 17 of the 2,3,7,8-substituted PCDDs and PCDFs listed in US EPA ...


    By Sigma-Aldrich Co., LLC

  • Paper fibers as a carbon source for the de novo formation of polychlorinated dioxins and furans

    Abstract  The formation of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDDs/Fs) from carbon that was produced by the pyrolysis of paper fibers and from wood charcoal was investigated experimentally. Fibers obtained from filter paper were pyrolyzed at 300° and 800°C to produce low- and high-temperature carbon samples. The two types of carbon and wood charcoal were ...


  • Paper fibers as a carbon source for the de novo formation of polychlorinated dioxins and furans

    The formation of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDDs/Fs) from carbon that was produced by the pyrolysis of paper fibers and from wood charcoal was investigated experimentally. Fibers obtained from filter paper were pyrolyzed at 300° and 800°C to produce low- and high-temperature carbon samples. The two types of carbon and wood charcoal were mixed with silica ...


    By Springer

  • Determination of Dioxins and Furans in Soil using the SpeedExtractor E-916

    Polychlorinated dibenzo dioxins (PCDDs) and polychlorinated dibenzo furans (PCDFs) are persistent organic pollutants (POPs) banned by the Stockholm Convention and they are therefore monitored worldwide. PCDDs and PCDFs were extracted from a soil sample with the SpeedExtractor E-916 and an ASE 200 system (Dionex) according to the U.S. EPA Method 3545A. Dioxin and furan congeners were determined by ...


    By BÜCHI Labortechnik AG

  • The changing sources of polychlorinated dibenzo‐p‐dioxins and furans in sediments and the ecological risk for nekton in the lower Passaic River and Newark Bay, New Jersey, USA

    Polychlorinated dibenzo‐p‐dioxins and dibenzofurans (PCDD/Fs) were measured in sediments (surface and deeper sediments) and porewater of the lower Passaic River and Newark Bay (NJ, USA) to apportion their sources and conduct an ecological risk assessment. Positive matrix factorization (PMF) was applied to identify sources of PCDD/Fs. Five source profiles were extracted from the PMF model ...


    By John Wiley & Sons, Ltd.

  • Parallel Pressurized Solvent Extraction of PCDD/PCDF, PBDE, and PFC from Soil, Sludge, and Sediment Samples

    The efficacy of pressurized solvent extraction with BUCHI's new SpeedExtractor was examined for the extraction of dioxins/furans (PCDDs/PCDFs), polybrominated diphenyl ethers (PBDEs), and perfluorinated compounds (PFCs) from different environmental matrices: PCDDs/PCDFs from soil samples, PFCs from soil and sewage sludge, and PBDEs from lake sediments. The results of the extraction of PCDDs/PCDFs ...


    By BÜCHI Labortechnik AG

  • Survey on Existing Sample Archives For The Assessment of Time Trends of Pollutants in The Environment of New EU Member States and Candidate Countries

    Foreword Potentially high levels of chemical pollution in the EU+10 compared to the EU 15 Member States generate concern on the environmental status of the former. Especially contaminations in the agro-environment of the new EU MS may result in an increase of the overall human exposure in the enlarged EU. First attempts to collect concrete data on polychlorinated dioxins (PCDDs), -furans ...


  • Dioxin and PCB determination in foodstuffs

    SpeedExtractor E-914: Pressurized solvent extraction for the determination of dioxins and PCBs in dairy, egg, pork and fish The determination of dioxins and PCBs in foodstuffs is performed to monitor the potential exposure to humans. A reliable and fast  method is introduced. Proficiency test samples were extracted with the SpeedExtractor E-914, followed by an automated clean-up ...


    By BÜCHI Labortechnik AG

  • Car Engines Air Filters. A Useful Ambient Air Sampler and/or a Possible Hazardous Waste?

    Car-engine air filters (CAFs) have been recently used as inexpensive alternative air sampling media for hydrophobic organic compounds such as polycyclic aromatic hydrocarbons, polychlorinated dibenzo-p-dioxins and furans and also for heavy metals. This “active-passive” sampling methodology is a promising way for urban air monitoring, being able to offer invaluable advantages. Two ...

  • Contaminant exposure of birds nesting in Green Bay, Wisconsin

    In earlier studies, elevated polychlorinated biphenyl (PCB) and p,p'‐dichlorodiphenyldichloroethylene (DDE) concentrations were reported in double‐crested cormorant (Phalacrocorax auritus) eggs and tree swallow (Tachycineta bicolor) eggs and nestlings collected from lower Green Bay in 1994 and 1995 and black‐crowned night‐heron (Nycticorax nycticorax) eggs collected in 1991. Comparable samples ...


    By John Wiley & Sons, Ltd.

  • Endocrine disrupting, mutagenic, and teratogenic effects of upper Danube River sediments using effect‐directed analysis

    Effect‐directed analysis (EDA) can be useful in identifying and evaluating potential toxic chemicals in matrixes. Previous investigations of extracts of sediments from the upper Danube River in Germany revealed acute nonspecific and mechanism‐specific toxicity as determined by several bioassays. In the present study, EDA was used to further characterize these sediments and identify groups of ...


    By John Wiley & Sons, Ltd.

  • Dioxin Exposure and Health in the European Union

    A study on the Evaluation of the occurrence of dioxins and POPs in wastes and their potential to enter the food chainwas financed by the Environment Directorate-General of the European Commission and coordinated by the Joint Research Centre, Environment Institute, Soil and Waste Unit and aimed at investigating to what extent the use of contaminated wastes in the production of animal feedstuffs ...


  • Composition and Contaminant Loads of Residual Household Waste Part III: Physico-Chemical Properties and Contaminant Concentrations

    Abstract. Physico-chemical properties of residual waste are key factors for disposal standards. Reliable input data for treatment plants (MSWI) need to consider the heterogeneity and variability of waste composition. This requires thoroughly designed sampling schemes, a consistent separation of bulk waste into uniform fractions, and adequate methods for sample preparation and analysis. The ...


    By Oracle Crystal Ball GBU

  • Pollution monitoring in Cement Industry

    The rising use of waste based fuels in the cement industry, both for economic and Environmental objectives, combined with the strengthening of air emission regulations around the world is pushing many operators to face a wider list of pollutants to monitor this, with associated costs. The design of appropriate solutions meeting local regulation is the key to maximize the cost benefit of the fuel ...


    By Environnement S.A

  • WEDA Minergy GFT Paper

    During the comment period of the 2001 draft of the Lower Fox River Remedial Investigation/Feasibility Study (RI/FS), WDNR and Minergy Corp, completed the evaluation of the cost and treatment-effectiveness of a vitrification technology based on standard glass furnace technology, to treat contaminated sediment. The three phases of the study were: I) Mineralogy and sediment characterization; ...


    By Minergy Corporation Limited

  • Monitoring - Pollution Prevention Guidelines

    Introduction Pollution Prevention Guidelines to provide technical advice and guidance to staff and consultants involved in pollution-related projects. The guidelines represent state-of-the-art thinking on how to reduce pollution emissions from the production process. In many cases, the guidelines provide numerical targets for reducing pollution, as well as maximum ...


    By The World Bank

  • Standard Chlorine of Delaware Remediation

    By designing a 70-foot deep barrier wall, Black & Veatch was able to cut off contaminant source areas from a creek near New Castle, Delaware. The groundwater treatment system that Black & Veatch designed prevents site contamination from reaching the underlying drinking water aquifer. The Standard Chlorine of Delaware Site is a 65 acre area including an abandoned chlorobenzene ...


    By Black & Veatch Corporation

  • Total solution: Gas and particulate analysis in Cement industry

    Cement plants are increasingly required to install continuous emission monitoring systems (CEMS). While these represent a significant financial outlay, a range of other factors also need to be considered when selecting a suitable CEMS. To the inexperienced, selecting a suitable CEM can mistakenly be considered as simply ensuring that the applicable national regulations (eg MACT in the USA, ...


    By Environnement S.A

  • Global solution: Gas and particulate analysis in Cement industry

    Cement plants are increasingly required to install continuous emission monitoring systems (CEMS). While these represent a significant financial outlay, a range of other factors also need to be considered when selecting a suitable CEMS. To the inexperienced, selecting a suitable CEM can mistakenly be considered as simply ensuring that the applicable national regulations (eg MACT in the USA, ...


    By Environnement S.A

  • Emission Testing and Monitoring

    Presented in Track B4: EMISSION TESTING & MONITORING at EUEC 2011, January 31 Phoenix, Arizona B4.1  | Update on PM2.5 and Condensable Particulate Matter Emissions Measurement Methods Larry Hottenstein |  Partner, Environmental Resources Management Following the promulgation of the PM2.5 ...

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