These guidelines are intended to provide a consistent methodology for developing black carbon inventories among the United States, Mexico and Canada, in order to improve cross-border comparisons and mitigation assessments. They are based on an extensive literature review and comparative evaluation of black carbon and underlying particulate matter emission inventory methods, resulting in a series of initial recommendations for “best practice” approaches.
An expert panel provided input on these initial recommendations to ensure consensus on the proposed methods and data sources. The panel comprised expertise across the major source sector categories (residential, biomass, onroad motor vehicles, nonroad mobile sources, power/industrial sources, and others) and experience in emissions research and inventory development in North America, Europe, and Asia. The final guidelines provide robust information on specific sources of emission factors, activity and speciation factors, with the goal of providing sufficient detail to allow inventory experts across North America to develop black carbon emissions inventories for all sectors.