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Environ Geochem Health

Title:		Carbonaceous resin capsule for vapor-phase monitoring of volatile hydrocarbons in soil: partitioning and kinetic model verification
Author(s):		Yang JE; Skogley EO; Ahmad M; Lee SS; Ok YS;
Address:		"Department of Biological Environment, Kangwon National University, Chuncheon, 200-701, Korea"
Journal Title:		Environ Geochem Health
Year:		2013
Volume:		20130524
Issue:		6
Page Number:		715 - 725
DOI:		10.1007/s10653-013-9529-8
ISSN/ISBN:		1573-2983 (Electronic) 0269-4042 (Linking)
Abstract:		"The resin capsule system (RCS) was tested as a means of providing data on the presence and forms of volatile hydrocarbons. Results indicated that resin capsules provided data showing sensitivity to soil variables (texture and moisture content) and time. The objectives of this paper are to evaluate the RCS methodology and to determine whether carbonaceous resin capsules provide results that can be described by fundamental chemical partitioning and kinetic principles. Findings revealed a significant relationship between quantities of benzene, toluene, ethylbenzene, and xylene adsorbed on the capsule and quantities partitioned into the vapor phase. Kinetic evaluation indicated that the vapor adsorption by the resin capsule is regulated by diffusion processes. No verification of rate-limiting processes was possible due to limitations imposed by the experimental design, but it appears that during early stages, adsorption rate was limited by vapor diffusion through the soil. The resin capsule data also reflected differences that would be expected due to properties of the organic liquids present. These results provide further evidence that the RCS could be developed to suggest direct in situ monitoring to reveal quantities and nature of organic substances in soils"
Keywords:		"Adsorption Environmental Monitoring/*methods Environmental Restoration and Remediation/*methods Hydrocarbons/*chemistry Kinetics Models, Theoretical Resins, Synthetic/*chemistry Soil/chemistry Soil Pollutants/*chemistry Volatile Organic Compounds/*chemist;"
Notes:		"MedlineYang, Jae E Skogley, Earl O Ahmad, Mahtab Lee, Sang Soo Ok, Yong Sik eng Evaluation Study Research Support, Non-U.S. Gov't Netherlands 2013/05/25 Environ Geochem Health. 2013 Dec; 35(6):715-25. doi: 10.1007/s10653-013-9529-8. Epub 2013 May 24"