Demonstrating the feasibility of polyethylene passive samplers for quantitative assessment of volatile organic compounds in soil

A quantitative assessment of the nature and extent of volatile organic compounds (VOCs) in soil vapors is a valuable tool, as these chemicals are pervasive and a health concern at many contaminated sites. Motivated by the successful use of polyethylene (PE) passive samplers in sediments, this research focused on demonstrating the feasibility of PE samplers to accurately assess volatile organic compounds in soil vapors. Experimental values of PE-water partitioning coefficients (Kpew) for benzene, toluene, ethyl benzene, and ortho-xylene (BTEX) were determined. A benchtop experiment in a controlled environment was performed, which consisted of a jar of sand with known amounts of trichloroethylene (TCE) and tetrachloroethylene (PCE). The concentrations of the TCE and PCE were measured using the PE passive sampler and compared to mathematically estimated results. Finally, the PE passive samplers were tested in an actual site at the U.S. Army Cold Regions Research and Engineering Laboratory (CRREL) and showed consistent results with the available data. The results of this thesis demonstrated that the PE passive sampling is a promising technique to measure VOCs in soil vapors.

Department dc:contributor.department

Massachusetts Institute of Technology. Department of Civil and Environmental Engineering.

Grantor dc:publisher

Massachusetts Institute of Technology

Year dc:date.issued

2017

Author dc:creator

• Saparbaiuly, Galym

Advisor dc:contributor.advisor

• Philip M. Gschwend.

• Civil and Environmental Engineering.

Statement dc:rights

• MIT theses are protected by copyright. They may be viewed, downloaded, or printed from this source but further reproduction or distribution in any format is prohibited without written permission.

Licence dc:rights.uri

• http://dspace.mit.edu/handle/1721.1/7582

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/1721.1/111554

OAI identifier oai:identifier

oai:dspace.mit.edu:1721.1/111554