tree-coring tool / Chemical formula / liquid electron-capture detector gas chromatograph gas chromatograph/mass spectrometry gram / soil-gas / chemical constituents / /
Organization
Operable Unit / Solid Waste Management Unit / U.S. Government / U.S. Environmental Protection Agency / U.S. Department of the Interior / office of Solid Waste and Emergency Response / /
Person
Mark D. Myers / Don A. Vroblesky Prepared / Willow Salix sp. Hemlock / Allison Vroblesky / James Paulownia Paulownia sp / Ash Fraxinus sp / Holly Ilex sp / Magnolia Magnolia sp. Birch Betula / / /
Position
Director U.S. Geological Survey / Geological Survey hydrologist / Secretary U.S. Geological Survey / /
Product
site showing / site showing little concentration change / Ground Water / Horizon / /
ProvinceOrState
Missouri / Texas / Virginia / South Carolina / Franklin County / Massachusetts / Connecticut / /
Prepared in cooperation with the U.S. Environmental Protection Agency Measurement and Monitoring for the 21st Century Initiative User’s Guide to the Collection and Analysis of Tree Cores to Assess the Distribution of S