Contaminated Soils, Sediments and Water Volume 10
Contaminated Soils, Sediments and Water Volume 10

Author: Edward J. Calabrese

Publisher: Springer Science & Business Media

Published: 2006-11-28

Total Pages: 517

ISBN-13: 0387283242

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Every spring, the University of Massachusetts - Amherst welcomes all ''Soils Conference" Scientific Advisory Board members with open arms as we begin the planning process responsible for bringing you quality conferences year after year. With this "homecoming" of sorts comes the promise of reaching across the table and interacting with a wide spectrum of stakeholders, each of them bringing their unique perspective in support of a successful Conference in the fall. This year marks the 20^^ anniversary of what started as a couple of thoughtful scientists interested in developing partnerships that together could fuel the environmental cleanup dialogue. Since the passage of the Superfund Law, regulators, academia and industry have come to realize that models that depend exclusively on ''command and control" mandates as the operative underpinning limit our collective ability to bring hazardous waste sites to productive re-use. It is with this concern in mind that the Massachusetts Department of Environmental Protection privatized its cleanup program in 1993, spurring the close-out of over 20,000 sites and spills across the Commonwealth to date, in a manner that is both protective of human health and the environment while also flexible and responsive to varied site uses and redevelopment goals. So we gather together again, this year, to hear our collective stories and share success and challenges just as we share stories at a family gathering. Take a read through the stories contained in these proceedings.

Environmental Forensics Fundamentals
Environmental Forensics Fundamentals

Author: Ioana Gloria Petrisor

Publisher: CRC Press

Published: 2014-07-14

Total Pages: 430

ISBN-13: 1466571594

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A Practical Guide to Environmental Crime Scene InvestigationsReleasing contaminants into the environment-whether deliberate or unintentional-can be thought of as a crime against the environment. The role of environmental forensics is to identify and prevent environmental pollution, or crimes. Environmental Forensics Fundamentals: A Practical Guide

The Relationship Between Tree-Core and Groundwater Trichloroethylene Concentrations for Groundwater Plume Delineation
The Relationship Between Tree-Core and Groundwater Trichloroethylene Concentrations for Groundwater Plume Delineation

Author: Kerry L. Lewis

Publisher:

Published: 2001-02-01

Total Pages: 202

ISBN-13: 9781423524748

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A 17-month field study designed to evaluate the feasibility of using trees as a cost-effective groundwater sampling and plume delineation tool was recently completed at site Operable Unit 4 at Hill Air Force Base (Ogden, UT). Using a hand-driven incremental borer, tree-core samples were collected monthly from cottonwood (Populus deltoides), russian olive (Elaeagnaceae elaeagnus), poplar (Salicaceae populus), apple (Malus pumila), and box elder (Acer negundo) trees located within and outside a trichloroethylene (TCE)-contaminated shallow groundwater plume. Concentrations of TCE in the core samples were determined using a headspace gas chromatography procedure. Variations to the headspace analysis method were made and results compared to other methods of TCE measurement for performance comparison. A relationship * between tree core (0. 001 to 32 mg/kg) and groundwater (0.2 to 4890 mg/L) TCE concentrations was observed (e.g., trees located above areas of high groundwater TCE concentration were found to contain high TCE concentrations). Stable isotopes of hydrogen were used to show that shallow TCE-contaminated groundwater is the most likely source of water used by the trees. Wood sorption isotherms (using site specific trees) were completed using C-14 TCE in a sealed batch process. Wood-water partitioning coefficient (K(sub wood)) values of 16.42 mL/g (cottonwood) and 11.51 mL/g (russian olive) were obtained from linear isotherms. When measuring TCE concentrations in water, these K(sub wood) values can now be used to estimate original concentrations of TCE within the tree tissues. Desorption coefficients were measured through sequential dilution steps and found to be reversible along the sorption isotherm.