contaminant sampling Articles

  • Mining Emissions Effectively Monitored with Micro Pulse LiDAR Technology

    Mining operations include blasting, excavating, scraping, and sifting large amounts of dirt. These activities create dust and other emissions that are transported by air currents to surrounding areas. It is easy to say that dangerous particulate matter (PM) generated by mining should be monitored and kept to a minimum; however, it is very challenging to measure the levels of contaminants in the ...

  • CBRN Water Monitors

    WANTED: CBRN (Chemical, Biological, Radiological, Nuclear) Water Monitors ...


    By US Nuclear Corporation

  • Low-Flow Purging and Sampling Ground Water - Evolution of Technology and Standards

    The human suffering caused by groundwater contamination has been dramatized in films such as “Erin Brockovich” and “A Civil Action.” Joe Ritchey describes the ASTM standards behind the scenes that help ensure safe drinking water and provide proof of contamination when ...

  • Surface Decontamination of Selenium (Se) by DeconGel®

    OBJECTIVE:  Determine the surface decontamination efficacy of DeconGel® 1101 on stainless steel, carbon steel, and concrete surfaces contaminated with Selenium (Se) using ICP-OES (Inductively Coupled Plasma-Optical Emission Spectroscopy) following Environmental Protection Agency (EPA) SW-846 Methods 3005A (sampling) and 6010C (analysis). ...


    By KT Chemicals, Inc.

  • Chemical Pollutants in Water Emerge

    Recent advances in contaminant identification methodologies, sampling instrumentation, and analytical chemistry have caused an explosion of knowledge about the presence of previously undetected organic micropollutants. While it doesn’t follow that the mere presence of chemical contaminants results in harm, public health experts, regulators, and others aren’t sitting idly ...


    By Acta Group

  • Surface Decontamination of Cyanide Compounds

    OBJECTIVE:  Determine the surface decontamination efficacy of DeconGel® 1101 on stainless steel, carbon steel, and concrete surfaces contaminated with potassium ferricyanide using ICP-OES (Inductively Coupled Plasma-Optical Emission Spectroscopy) following Environmental Protection Agency (EPA) SW-846 Methods 3005A (sampling) and 6010C (analysis). ...


    By KT Chemicals, Inc.

  • Surface Decontamination of Iron Compounds (Iron (II) Chloride (FeCl2)) by DeconGel

    Determine the surface decontamination efficacy of DeconGel® 1101 on stainless steel, carbon steel, aluminum and concrete surfaces contaminated with Iron (II) Chloride (FeCl2) using ICP-OES (Inductively Coupled Plasma-Optical Emission Spectroscopy) following Environmental Protection Agency (EPA) SW-846 Methods 3005A (sampling) and 6010C ...


    By KT Chemicals, Inc.

  • Surface Decontamination of Iodine (Potassium Iodide (KI)) by DeconGel®

    OBJECTIVE: Determine the surface decontamination efficacy of DeconGel® 1101 on stainless steel, carbon steel, floor tile, and concrete surfaces contaminated with potassium iodide (KI) using ICP-OES (Inductively Coupled Plasma-Optical Emission Spectroscopy) following Environmental Protection Agency (EPA) SW-846 Methods 3005A (sampling) and 6010C ...


    By KT Chemicals, Inc.

  • Lucas County Port Authority Case Study

    Jeep Parkway – Toledo, Ohio Treated the soil in situ down to 20 feet. Removal of several unknown concrete structures, removal and disposal of more than 4,000 tons of PAH and heavy metal contaminated soil, collected over 200 soil samples and water samples, and moved 7,000 cubic yards of onsite borrow to fill and cap the ...

  • A simple, efficient method for the separation of humic substances and DNA from environmental samples

    Three different gels (Sepharose 4B, Sephadex G-200, and Sephadex G-50) were evaluated as a means of removing humic contaminants from DNA extracts of environmental samples. Sepharose 4B gave superior separation of DNA from humics, and DNA purified in this way showed consistently greater amplification than DNA purified by the other ...

  • Surface Decontamination of Cadmium Compounds (Cadmium Chloride (CdCl2) and Cadmium Oxide (CdO)) by DeconGel®

    OBJECTIVE:  Determine the surface decontamination efficacy of DeconGel® 1101 on stainless steel, aluminum, carbon steel, and concrete surfaces contaminated with cadmium compounds  (cadmium chloride (CdCl2) and cadmium oxide (CdO)) using ICP-OES (Inductively Coupled Plasma-Optical Emission Spectroscopy) following Environmental Protection ...


    By KT Chemicals, Inc.

  • Surface Decontamination of Barium Compounds (Barium Chloride (BaCl2) and Barium Carbonate (BaCO3)) by DeconGel®

    OBJECTIVE:  Determine the surface decontamination efficacy of DeconGel® 1101 on stainless steel, carbon steel, and concrete surfaces contaminated with barium compounds (barium chloride (BaCl2) and barium carbonate (BaCO3)) using ICP-OES (Inductively Coupled Plasma-Optical Emission Spectroscopy) following Environmental Protection Agency ...


    By KT Chemicals, Inc.

  • Puraflex Design and Installation Instructions

    In order to produce an effective barrier to contamination, any membrane must be installed properly by personnel familiar with the material.  Any defects in jointing or preparation of the sub-base could damage the integrity of the lining system and ultimately lead to barrier failure. ITP LTD's Design and Installation Guide describes the quality control measures, earthworks/ground preparation, ...

  • Case Study - Monitoring Natural Attenuation - Catalonia, Spain

    Researchers at Universitat de Barcelona and University of Waterloo made use of EnviroInsite's advanced data visualization capabilities to contour hot-spots of TCE contamination and carbon isotopes. The results from multi-level sampling devices were then shown on a x-section to illustrate the loss of PCE in the direction of flow and variability of PCE and TCE isotopes vertically across the ...


    By EI LLC

  • Eliminating false positives in a qPCR assay for the detection of the uidA gene in Escherichia coli

    Due to contaminant Escherichia coli DNA present in recombinant Taq polymerase reagents, it is not possible to reliably detect low levels of E. coli in samples using the quantitative polymerase chain reaction (qPCR) assay. Native Taq polymerase was successfully used in this study to detect five uidA gene copies (5 fg of ...


    By IWA Publishing

  • Monitoring Metal Contamination in Water

    Metal contamination in drinking and source water has proven to have economic and health impacts on the human race. Regulatory agencies understand the importance of remediating metal contamination in our water supply to ensure safe consumption of drinking water. In order to properly remediate our water supplies, one must first determine cause of contamination and the source of the problem. ...


    By IWA Publishing

  • Nitrate Analysis of Water Samples Using a Benchtop UV-Vis Spectrophotometer

    Nitrogen is naturally found in groundwater and surface water in the form of nitrate, nitrite, or ammonium. The EPA has established a maximum contaminant level of nitrate-nitrogen in potable water of 10ppm. This application presents results of UV-Vis analysis of nitrate concentrations in drinking water, ground water, and industrial wastewater, showing that the manual colorimetric method is ...

  • Hitting the Bull`s-Eye in Groundwater Sampling

    Many commonly used groundwater sampling techniques and procedures have resulted from methods developed for water supply investigations. These methods have persisted, even though the monitoring goals may have changed from water supply development to contaminant source and plume delineation. Unfortunately, the use of these methods can result in an incorrect understanding of the contaminant ...

  • Plume distortion and apparent attenuation due to concentration averaging in monitoring wells

    This paper, authored by University of Connecticut researchers who performed much of the early work on this topic, describe the various processes that bias groundwater samples collected from conventional monitoring wells. In particular, they discuss the dilution of contaminants that occurs when clean water is simultaneously drawn into monitoring wells pumped to produce groundwater ...


    By Solinst Canada Ltd.

  • Ground water sampling bias observed in shallow conventional wells

    EPA’s Hutchins and Acree present the results of their field research showing the misleading data that are often generated using samples collected from conventional monitoring wells. They conclude that “These data provide an additional example where cluster well points or other methods of obtaining depth-discrete samples would be required to provide an accurate assessment of either the extent of ...


    By Solinst Canada Ltd.

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