Source & Ambient Characterizations

As more regulatory and permitting activities focus on assessing ambient impacts of source-level emissions, there is a need to better characterize/speciate both source-level and ambient monitor data and estimate the ambient impacts of source emissions. There is also a need to explore modeling approaches that “map” the constituents measured on ambient monitors back to contributing sources. NCASI expertise in emissions characterizations and activity in evaluating / validating modeling approaches are critical to meet these needs.