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Environ Technol

Title:		Evaluation of soil gas sampling and analysis techniques at a former petrochemical plant site
Author(s):		Hers I; Li L; Hannam S;
Address:		"Golder Associates Ltd., #500-4260 Still Creek Drive, Burnaby, B.C., Canada, V5C 6C6"
Journal Title:		Environ Technol
Year:		2004
Volume:		25
Issue:		7
Page Number:		847 - 860
DOI:		10.1080/09593330.2004.9619377
ISSN/ISBN:		0959-3330 (Print) 0959-3330 (Linking)
Abstract:		"Methods for soil gas sampling and analysis are evaluated as part of a research study on soil vapour intrusion into buildings, conducted at a former petro-chemical plant site ('Chatterton site'). The evaluation process was designed to provide information on reliability and selection of appropriate methods for soil gas sampling and analysis, and was based on a literature review of data and methods, and experiments completed as part of the research study. The broader context of this work is that soil gas characterization is increasingly being used for input into risk assessment of contaminated sites, particularly when evaluating the potential intrusion of soil vapour into buildings. There are only a limited number of research studies and protocols addressing soil gas sampling and analysis. There is significant variability in soil gas probe design and sample collection and analysis methods used by practitioners. The experimental studies conducted to evaluate soil gas methods address the permeation or leakage of gases from Tedlar bags, time-dependent sorption of volatile organic compound (VOC)-vapours onto probe surfaces and sampling devices, and analytical and quality control issues for light gas and VOC analyses. Through this work, common techniques for soil gas collection and analysis are described together with implications for data quality arising from the different methods used. Some of the potential pitfalls that can affect soil gas testing are identified, and recommendations and guidance for improved protocols are provided"
Keywords:		"Biodegradation, Environmental *Chemical Industry Environmental Monitoring/*methods Gases Hydrocarbons/*analysis *Petroleum Quality Control Reproducibility of Results Soil Pollutants/*analysis Volatilization;"
Notes:		"MedlineHers, I Li, L Hannam, S eng Evaluation Study England 2004/09/07 Environ Technol. 2004 Jul; 25(7):847-60. doi: 10.1080/09593330.2004.9619377"