Field Methods to Distinguish between Vapor Intrusion and Indoor Sources of VOCs
Thursday, December 1, 1:30–5:30 pm

Participants received 4 professional development hours upon course completion.  

Instructors:

Dr. Erik Dettenmaier – Hill Air Force Base – Environmental Restoration Branch Mr. Kyle Gorder – Hill Air Force Base – Environmental Restoration Branch Dr. Thomas McHugh – GSI Environmental Inc. 

Indoor sources of volatile organic compounds (VOCs) are ubiquitous. As a result, when using indoor air measurements to evaluate vapor intrusion, reliable methods are needed to distinguish between vapor intrusion and indoor sources of VOCs. This short course demonstrated the use of on-site analysis of indoor air samples to identify indoor sources of VOCs and to determine whether vapor intrusion is occurring. Instructors also discussed supplemental tools such as building pressure control and radon analysis that can be used to minimize the effects of spatial and temporal variability on investigation results. Implementation of the field investigation methods and interpretation of the results as well as method validation and regulatory acceptance was covered. The course included a hands-on demonstration of the HAPSITE GC/MS for on-site analysis of VOCs in indoor air samples and a demonstration of other field investigation equipment used to control and measure building pressure and to measure radon concentrations. 

ON-DEMAND VIDEO AVAILABLE: The on-demand video of this short course provides training on the use and implementation of on-site analysis techniques for vapor intrusion investigations. The techniques include indoor air sampling to identify indoor sources of volatile organic compounds (VOCs), and supplemental tools such as building pressure control and radon analysis to minimize the effects of spatial and temporal variability on investigation results. Links to the modules are available below. In addition, the material is available in its entirety in PDF format and in the corresponding Hands-On Demonstration Handout.

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ORGANIZATION

1:30 PM

2:10 PM

Introduction: Overview of Vapor Intrusion (VI) and Indoor Sources of VOCsOn Demand Video – Module 1

Dr. Thomas McHughMr. Kyle Gorder Dr. Erik Dettenmaier

GSI Environmental Inc.Hill Air Force BaseHill Air Force Base

2:10 PM

2:25 PM

Compound-Specific Stable Isotope AnalysisOn Demand Video – Module 2

Dr. Thomas McHugh

GSI Environmental Inc.

2:25 PM

2:40 PM

Hydrocarbon FingerprintingOn Demand Video – Module 3

Dr. Thomas McHugh

GSI Environmental Inc.

2:40 PM

2:50 PM

Building Pressure ControlOn Demand Video – Module 4

Dr. Thomas McHugh

GSI Environmental Inc.

2:50 PM

3:10 PM

Break

3:10 PM

3:35 PM

On-site Gas Chromatography/Mass Spectrometry (GC/MS) Analysis: OverviewOn Demand Video – Module 5

Mr. Kyle Gorder Dr. Erik Dettenmaier

Hill Air Force BaseHill Air Force Base

3:35 PM

5:00 PM

Hands-On Demonstration of On-Site GC/MS Investigation Procedure

Dr. Thomas McHughMr. Kyle Gorder Dr. Erik Dettenmaier

GSI Environmental Inc.Hill Air Force BaseHill Air Force Base

5:00 PM

5:30 PM

Demonstration of VI Field Equipment: Pressure Transducer, Radon Meter, Adsorbent Tubes and PumpsOn Demand Video – Module 6

Dr. Thomas McHughMr. Kyle Gorder Dr. Erik Dettenmaier

GSI Environmental Inc.Hill Air Force BaseHill Air Force Base

      5:30 PM

Adjourn