Record Display for the EPA National Library Catalog

RECORD NUMBER: 17 OF 22

OLS Field Name OLS Field Data
Main Title Real-Time and Delayed Analysis of Tree and Shrub Cores as Indicators of Subsurface Volatile Organic Compound Contamination, Durham Meadows Superfund Site, Durham, Connecticut, August 29, 2006.
Author D. A. VROBLESKY ; R. E. Willey ; S. CLIFFORD ; J. J. Murphy
CORP Author Geological Survey, Reston, VA.; Environmental Protection Agency, Washington, DC.
Year Published 2007
Report Number USGS-SIR-2007-5212
Stock Number PB2008-111918
Additional Subjects Vegetation cores ; Volatile organic compounds ; Pollution monitoring ; Bioindicators ; Concentrations ; Site descriptions ; Subsurface soils ; Methods ; Trees ; Maps ; Shrubs ; Real time monitoring ; Vadose-zone contamination ; Durham (Connecticut) ; Durham Meadows Superfund Site
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NTIS  PB2008-111918 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 03/10/2010
Collation 20p
Abstract
This study examined volatile organic compound concentrations in cores from trees and shrubs for use as indicators of vadose-zone contamination or potential vapor intrusion by volatile organic compounds into buildings at the Durham Meadows Superfund Site, Durham, Connecticut. The study used both (1) real-time tree- and shrub-core analysis, which involved field heating the core samples for 5 to 10 minutes prior to field analysis, and (2) delayed analysis, which involved allowing the gases in the cores to equilibrate with the headspace gas in the sample vials unheated for 1 to 2 days prior to analysis. General correspondence was found between the two approaches, indicating that preheating and field analysis of vegetation cores is a viable approach to real-time monitoring of subsurface volatile organic compounds. In most cases, volatile organic compounds in cores from trees and shrubs at the Merriam Manufacturing Company property showed a general correspondence to the distribution of volatile organic compounds detected in a soil-gas survey, despite the fact that most of the soil-gas survey data in close proximity to the relevant trees were collected about 3 years prior to the tree-core collection.