Air

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.

Source & Ambient Characterizations

Topics

Source Fingerprinting

NCASI work in this emerging area has focused on development of speciation profiles for particulate matter emissions sources at chemical pulp mills. In the future, this information, when coupled with extensive emissions information on air toxics and PM2.5, will enable facilities to undertake culpability analyses for potential PM2.5 and air…

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Ambient Data Analyses

NCASI work in this area is expected to involve an assessment of near-field and long-range impacts of forest product industry sources on ambient air. This information may prove useful in the context of air permitting, secondary pollutant impacts and addressing local issues. Early work focuses on analysis of publicly available…

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