Form Approved
REPORT DOCUMENTATION PAGE
OMB No. 0704-0188
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1. AGENCY USE ONLY (Leave blank)
2. REPORT DATE
3. REPORT TYPE AND DATES COVERED
February 1998
4. TITLE AND SUBTITLE
5. FUNDING NUMBERS
Laboratory Study of Volatile Organic Compound Partitioning:
Vapor/Aqueous/Soil
6. AUTHORS
Alan D. Hewitt
7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES)
8. PERFORMING ORGANIZATION
REPORT NUMBER
U.S. Army Cold Regions Research and Engineering Laboratory
72 Lyme Road
Special Report 98-3
Hanover, New Hampshire 03755-1290
9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES)
10. SPONSORING/MONITORING
AGENCY REPORT NUMBER
U.S. Army Environmental Center
Aberdeen Proving Ground, Maryland 21010-5401
SFIM-AEC-ET-CR-98001
For conversion of SI units to non-SI units of measurement consult Standard Practice for Use of the
11. SUPPLEMENTARY NOTES
International System of Units (SI), ASTM Standard E380-93, published by the American Society for Testing and Materials,
1916 Race St., Philadelphia, Pa. 19103.
12a. DISTRIBUTION/AVAILABILITY STATEMENT
12b. DISTRIBUTION CODE
Approved for public release; distribution is unlimited.
Available from NTIS, Springfield, Virginia 22161.
13. ABSTRACT (Maximum 200 words)
A laboratory experiment measured the concentrations of volatile organic compounds (VOCs) existing in a
vapor, water, and bulk soil media after several weeks of exposure to a contaminant source. The experimental
design included quiescent conditions, hydrated mineral surfaces, and a constant temperature of 11 1C. The
findings show that similar to Henry's law, fairly constant ratios are likely to exist between soil vapor and bulk
soil VOC concentrations. These results are encouraging for those attempting to use active soil gas measurements
to predict bulk VOC concentrations in the vadose zone.
14. SUBJECT TERMS
15. NUMBER OF PAGES
18
Partitioning
Soil vapor concentrations
16. PRICE CODE
Volatile organic compounds
17. SECURITY CLASSIFICATION
18. SECURITY CLASSIFICATION
19. SECURITY CLASSIFICATION
20. LIMITATION OF ABSTRACT
OF REPORT
OF THIS PAGE
OF ABSTRACT
UNCLASSIFIED
UNCLASSIFIED
UNCLASSIFIED
UL
Standard Form 298 (Rev. 2-89)
NSN 7540-01-280-5500
Prescribed by ANSI Std. Z39-18
298-102
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