Articles | Volume 8, issue 9
Research article
16 Sep 2015
Research article |  | 16 Sep 2015

Determining air pollutant emission rates based on mass balance using airborne measurement data over the Alberta oil sands operations

M. Gordon, S.-M. Li, R. Staebler, A. Darlington, K. Hayden, J. O'Brien, and M. Wolde


Interactive discussion

Status: closed
Status: closed
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Short summary
Aircraft-based measurements of air pollutants from sources in the Canadian oil sands were made during a summer intensive field campaign in 2013. This paper describes the top-down emission rate retrieval algorithm (TERRA) to determine facility emissions of pollutants, using SO2 and CH4 as examples. Uncertainty of the emission rates estimated with TERRA is estimated as less than 30%, which is primarily due to the unknown SO2 and CH4 mixing ratios near the surface below the lowest flight level.