ENV-09-28 Uncertainty in Greenhouse Gases, Nitrogen Oxides, and Sulfur Oxides Emission Estimates: Technical Considerations and Statistical Calculation Methods

Description:

This paper will provide an overview of API-sponsored work to develop technical considerations and statistical calculation methods for addressing uncertainty in emissions estimation. Addressing uncertainty for GHG emission estimates complements the API GHG Methodology Compendium (API Compendium). It augments existing industry guidance with technically valid approaches that enhance emissions estimation robustness and data quality. The topics to be discussed include: clarification of the sources of uncertainty in entity emission inventories; information on measurement practices; and explanation of statistical procedures that can be used to quantify uncertainties.