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USGS GeoData Digital Raster Graphics

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USGS GeoData Digital Raster Graphics; 2001; FS; 088-01; U.S. Geological Survey

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Passive diffusion samplers have been tested at a number of sites where volatile organic compounds (VOC?s) are the principal contaminants in ground water. Test results generally show good agreement between concentrations of VOC?s in samples collected with diffusion samplers and concentrations in samples collected by purging the water from a well. Diffusion samplers offer several advantages over conventional and low-flow ground-water sampling procedures: ? Elimination of the need to purge a well before collecting a sample and to dispose of contaminated water. ? Elimination of cross-contamination of samples associated with sampling with non-dedicated pumps or sample delivery tubes. ? Reduction in sampling time by as much as 80 percent [...]

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Harvested on Mon Jul 21 14:37:36 MDT 2014 from MODS XML Service

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Type Scheme Key
local-index unknown fs08801
local-pk unknown 30750
doi http://www.loc.gov/standards/mods/mods-outline-3-5.html#identifier doi:10.3133/fs08801
series unknown Fact Sheet

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journalFact Sheet
parts
typePublication Place
valueReston, VA
editionSupersedes FS-122-95 & FS-070-99
languageENGLISH
citationTypeReport

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