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Vapor Intrusion refers to the migration of vapors from subsurface contaminant sources to buildings such as a homes or workplaces. API conducts research towards improving the screening process for vapor intrusion at sites where petroleum releases have occurred.
Vapor Intrusion Training News
On October 19, 2009, API conducted two 1/2-day workshops—"Assessing Vapor Intrusion at Petroleum Release Sites" and "BioVapor, a 1-D Vapor intrusion Model with Aerobic Biodegradation"—at the Annual Conference on Soils, Sediments, Water and Energy at the university of Massachusetts at Amherst. The goal of the former workshop was to provide effective strategies for assessing the vapor intrusion pathway, through an understanding of the principles of vapor movement and attenuation and high-quality data collection. The latter workshop amplified the principles discussed in the first workshop, through discussion of case studies and the application of BioVapor, a 1-D vapor intrusion model developed by API. Software data input, calculation and interpretation of output data were discussed in detail.
View/Download Assessing Vapor Intrusion at Petroleum Release Sites-October 2009
Size: 15 MB | November 2, 2009 | License: Free
View/Download BioVapor, a 1-D Vapor Intrusion Model-October 2009
Size: 8 MB | November 2, 2009 | License: Free
The Interstate Technology Regulatory Council (ITRC) ran the 1st of several planned 2-day vapor intrusion training classes on October 7-8, 2008 in Portland, OR. ITRC's training supports their well-received 2007 vapor intrusion guidance by providing in-depth information on developing site conceptual models, site investigation, data evaluation and mitigation. Class exercises allow attendees to apply their experience and newly-gained knowledge to real-world vapor intrusion scenarios.
On March 16 2008, API conducted a 1/2-day workshop: "Assessing Vapor Intrusion at Petroleum Release Sites" at the 20th Annual National Tanks Conference and Expo in Atlanta, GA. The goal of this workshop was to provide the most up-to-date, cost effective strategies for verifying bioattenuation and determining the significance of the vapor intrusion pathway. The workshop emphasized principles of vapor movement and attenuation, site conceptual model development, and collection of high-quality data. A similar workshop will be presented at the 19th Annual AEHS Meeting & West Coast Conference on Soils, Sediments, and Water; March 9-12, Marriott Mission Valley, San Diego, California.
View/Download Assessing Vapor Intrusion at Petroleum Release Sites
Size: 7 MB | March 16,2008 | License: Free
Publications
API has produced several publications on developing screening criteria, site assessment and vapor biodegradation:
Collecting and Interpreting Soil Gas Samples from the Vadose Zone
Summary | Download Now
Identification of Critical Parameters for the Johnson and Ettinger (1991) Vapor Intrusion Model
API Soil and Groundwater Research Bulletin Number 17
May 2002
Vadose Zone Natural Attenuation of Hydrocarbon Vapors
An Empirical Assessment Of Soil Gas Vertical Profile Data
API Soil and Groundwater Research Bulletin Number 15
December 2001
Determining Vapor Attenuation Factors Using a Screening-Level Model and Field Data from the CDOT-MTL
Summary API Soil and Groundwater Research Bulletin Number 16
April 2002
Assessing the Significance of Subsurface Contaminant Vapor Migration to Enclosed Spaces: Site-Specific Alternatives to Generic Estimates
Site-Specific Alternative to Generic Estimates
API Publication 4674December 1998
Presentations:
Contaminated Property Transactions: Mitigating the Risks of Redevelopment
April 11-13, 2007
Washington, DC
Vapor Intrusion Session In Focus
Featuring presentations by leaders in the VI practice from government, industry and consulting. Go to conference agenda.
Vapor Intrusion: The Next Great Environmental Challenge - An Update
Presented by The Air and Waste Management Association
September 13-15, 2006
Los Angeles, CA
Session 4: Petroleum Vapor Intrusion Issues
Abstracts:
Download
File Size: 1.3 MB
OS: PC/Mac | License: Free
Presentations (.zip file):
Download
File Size: 4.3 MB
OS: PC/Mac | License: Free
NGWA/API Petroleum Vapor Intrusion Workshop
August 17, 2005
Costa Mesa, CA
Regulators, consultants and industry representatives participated in a workshop to gain a better understanding about the potential for vapor intrusion from subsurface petroleum hydrocarbon sources. Click here for a summary. Click below to download workshop presentations (.zip file).
Download
File Size: 5.7 MB
OS: PC/Mac
License: Free
AWMA 2007 VI Specialty Conference
Presentations from the 2007 AWMA Vapor Intrusion Conference