standards exist for open sources, available test methods have never been fully standardized. These test methods tend to be fragmented and poorly defined, and generally lack the refinement that comes from collaborative testing of each method by independent organizations concurrently applying the method to the same emission source. As a result, there is insufficient knowledge of the limits of applicability of these methods and their equivalency when applied to the same source. Without determining the uncertainty levels associated with specific test methods, there is little chance of properly characterizing the uncertainties in the resultant emission factors or in providing consistency in source assessment.
CSOSE has chosen to use the EPA OTM process as a vehicle for documenting, evaluating and publishing open source test methods. USEPA has designated Dennis Mikel as the person assigned to CSOSE in following this process. Regarding dispersion models, CSOSE is evaluating the suitability of regulatory dispersion models in properly representing open source configurations and transport aspects.
In summary, as significant contributors to national and global airborne emissions, open sources lack the well-defined, fully-standardized emission methods needed for reliable source characterization and assessment. CSOSE is positioned to fill this need.