© 2012. This presentation contains preliminary results and is shared for general information and project introduction purposes only. Please do not reproduce or distribute without permission of the authors. Contact PTAC.
Dr. Matthew Johnson, Carleton University, presents preliminary research on air emissions from hydraulic fracturing of new "unconventional" natural gas wells. With Canadian data lacking, most of the current data comes from a USA industry survey. US EPA has dropped the use of the word "unconventional" in favor of using "hydraulically fractured" in the 2012 US GHG inventory because of inconsistency in the defintion of "unconventional" wells.
At this early state of data reporting, GHG emission estimates really uncertain and current studies are not comparable. Dr. Mathew would not put a lot of stock in most current studies.
Dr. Johnson lists the 7 elements required to characterize emissions data adequately for meaningful analysis.