Record Display for the EPA National Library Catalog
RECORD NUMBER: 678 OF 1535| Main Title | Guidance on the Use of Passive-Vapor-Diffusion Samplers to Detect Volatile Organic Compounds in Ground-Water-Discharge Areas, and Example Applications in New England. | |||||||||||
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| Author | Church, P. E. ; Vroblesky, D. A. ; Lyford, F. P. ; Willey, R. E. ; | |||||||||||
| CORP Author | Geological Survey, Northborough, MA. Water Resources Div. ;Environmental Protection Agency, Washington, DC. | |||||||||||
| Publisher | 2002 | |||||||||||
| Year Published | 2002 | |||||||||||
| Report Number | USGS/WRI-02-4186; | |||||||||||
| Stock Number | PB2003-103562 | |||||||||||
| Additional Subjects | Ground water ; Discharge areas ; Volatile organic compounds ; Water pollution monitoring ; Surface water ; Applications ; Guidance ; Superfund sites ; Quality assurance procedures ; Sediments ; Storm drains ; Water pollution detection ; Passive vapor diffusion samplers | |||||||||||
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| Collation | CD-ROM | |||||||||||
| Abstract | Polyethylene-membrane passive-vapor diffusion samplers, or PVD samplers, have been shown to be an effective and economical reconnaissance tool for detecting and identifying volatile organic compounds (VOCs) in bottom sediments of surface-water bodies in areas of ground-water discharge. The PVD samplers consist of an empty glass vial enclosed in two layers of polyethylene membrane tubing. When samplers are placed in contaminated sediments, the air in the vial equilibrates with VOCs in pore water. Analysis of the vapor indicates the presence or absence of VOCs and the likely magnitude of concentrations in pore water. detected to more than 1,000,000 parts per billion by volume. These results provided insights about contaminant distributions and ground-water-flow patterns in discharge areas, and have guided the design of focused characterization activities. |