environmental forensic Articles

  • Environmental forensics investigation

    Location: Vancouver, BC Owner: Confidential Description: Environmental forensics investigation ongoing to determine the source of chlorinated solvents (PCE, TCE, 1,1,1-TCA1,1,DCE) and 1,2-dichlorobenzene contamination at a site that has changed owners in the past 25 years. Advanced Forensic Techniques used include hydrolysis equation for ...


    By NovaTec Consultants Inc.

  • Environmental forensics: courting science?

    Forensics and hydrology are two terms that may not seem to go together well. To the uninitiated, this combination may evoke images of the crime scene investigation that ensues when some patsy goes into the drink wearing cement overshoes. Rather, the term environmental forensics, essentially the parent discipline of forensic hydrology, has found its way into contemporary parlance owing to ...


    By Hargis + Associates Inc

  • The (Environmental) Science of Investigation: Interactive Forensics Training Helps Professionals Solve Petroleum Contamination Cases

    When a site is contaminated with petroleum products, there are many questions. How did it happen? When did it happen? And, most importantly, who is responsible for paying to clean it up? This fall, Rutgers University’s Office of Continuing Professional Education (OCPE) will ...

  • Case study - NAPL forensics analysis at refinery site in Kansas

    An environmental consultant at Subsurface Environmental Solutions, LLC used Sitelab to fingerprint a large plume of Non Aqueous Phase Liquids (NAPL) located at a former oil refinery in Kansas. The plume is commingled with gasoline, diesel, crude oil and other petroleum products. Sitelab’s portable UVF-3100D analyzer is fitted with optical filters which can measure the C6 to C10 gasoline ...


    By Sitelab Corporation

  • A forensic study to differentiate two dissolved gasoline plumes at adjoining service stations

    Three gasoline service stations are present at a highway intersection in central New Jersey. In the mid- to late- 1980s, service station “B” began to notice large discrepancies in their gasoline inventory. The USTs were removed in 1988 and a significant release was discovered. Separate-phase gasoline, as much as 1.5 feet (0.5 m) thick was present on the water table for about an area ...


  • INFRARED TECHNOLOGY - It`s Use in Forensic Building Science to Solve Moisture Intrusion Problems

    This paper will focus discussion on the building envelope, the science behind the inspection, techniques for inspection, and verification of the findings. Because much of our work is pioneering, we will end by addressing the question 'Where do we go from here?' WHY USE INFRAREDA picture says a thousand words; infrared thermography is the only diagnostic technology that lets you instantly ...

  • FORENSIC study at a Northern New Jersey service station: the mixing of old and new gasoline

    In 2000, a client purchased a gasoline service station in northern New Jersey. A few days after receiving possession of the property, he received a letter from a State regulatory agency informing him that an investigation surrounding a leaking waste oil UST was required. He was unaware that a waste oil UST had existed; automotive repairs were not part of his or the previous owner’s business ...


  • In response to O'Reilly et al. (2014)

    Coal‐tar‐based pavement sealant, a black liquid that is sprayed or painted on asphalt pavement, typically is 15 to 35% by weight coal tar or low‐ or high‐temperature coal‐tar pitch. USGS, other governmental, and academic research that has concluded that coal‐tar‐based pavement sealants are a major source of urban PAHs have relied on a wide array of forensic methods. Published academic and ...


    By John Wiley & Sons, Ltd.

  • Response to O'Reilly et al. (2014)

    Recently, O'Reilly et al. (2014) provided a review of environmental forensic techniques for source characterization and identification of pyrogenic polycyclic aromatic hydrocarbons (PAHs) in sediments. They also provided an example case study pertaining to refined tar‐based sealers [commonly known as coal tar‐based sealants (CT‐sealants)] to support their contention that CT‐sealants are not a ...


    By John Wiley & Sons, Ltd.

  • Analysis of TNT, RDX, and CL-20 by APCI LC/MS/MS

    IntroductionThe detection and characterization of explosives has gained the interest of various analytical laboratories and researchgroups around the world.For the forensic community, trace analysis of explosive residues after arson and terrorism is of critical interest.Biologists and environmentalists monitor biotransformation of these high energy compounds when evaluating ...


  • Studies towards a switch–off optical DNA sensor based on poly(p–phenylenevinylene) grafted magnetic beads

    Much effort has been devoted towards developing efficient DNA sensors for applications in medical diagnostics, food contamination, forensics, biodefence and environmental monitoring. In this study we further evaluate the selectivity of our recently developed switch–off sensor design that utilises sandwich hybridisation between a photoluminescent anionic conjugated polymer (CP) bound capture probe ...


    By Inderscience Publishers

  • The history of leaded gasoline

    Forensic investigations are often a combination of both scientific techniques and historical background studies. One example that is often used is the background to leaded gasoline. Gasoline service stations can be found on many street corners and, in fact, there were many more service stations in the United States in the 1960s than there are today. This means that potential sources of ...


  • Got Chinese drywall?

    Step By Step Environmental Assessments, a leading environmental inspection company in Florida, was one of the first companies, in early 2008, in South Florida to CORRECTLY identify Chinese Drywall, during assessments for builders and residences in North Florida. As such, we have been consulted by attorneys and consumers, as well as leading laboratories, looking to better understand the causes and ...

  • Emergency response and clean-up of a diesel leak: manufacturing facility

    Project: Emergency response and clean-up of a diesel leak Client: Confidential manufacturing company Services: Emergency response planning, environmental assessment, regulator liaison, remediation design Summary: Through rapid site characterisation and expert decision making ESI minimised the environmental damage ...

  • Interactive Resources Wins National Renewable Energy Laboratory Contract for Roof Structural Assessments for Installation of Solar Photovoltaic Arrays

    Richmond CA, October 19, 2010   – Richmond architecture and engineering firm Interactive Resources was recently awarded a contract by the National Renewable Energy Laboratory (NREL) to provide solar feasibility studies for 24 California K-12 school buildings in Alameda and Contra Costa Counties. The Sequoia Foundation ...


    By Interactive Resources

  • Oil & Gas Leakage Detection Contractors

    RADS (Remote Aerial Detection Systems) teamed with market leading vendors to supply state-of-the-art Intelligence Surveillance and Reconnaissance (ISR) and security equipment. RADS is a US-based top-tier Technology Integrator that serves international commercial and government customers across the world. Unlike the large US defense contractors, RADS is independent and can operate with agility ...


  • METH: THE NEW MOLD - New Markets in Clandestine Laboratory Clean-up

    Untitled Document Intro Clandestine labs have become prevalent across America. They are used for the ...


    By EMSL Analytical, Inc.

  • Portable lead analyzer to locate source of lead

    OBJECTIVE: To investigate the sources of lead in the environment in children with elevated blood, with the help of a Field Portable X-Ray ...

  • Leader in sample preparation systems benefits from Axetris MFCs’ high dynamic range - Case Study

    Split ratio flexibility of GC injector increased 30-fold A leading manufacturer of analytical sample preparation systems in gas chromatography (GC) switched to Axetris MFCs - and in doing so, simplified their product range, while offering their customers at least 30 times more flexibility in split ratio. The market-leading dynamic range of Axetris mass flow controllers (MFCs)—with ...


    By Axetris Ag

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