Q/d evaluations are a simplified way of evaluating potential impact of a source by comparing the quantity of emissions(Q) from a plant divided by the distance to the Class 1 area. The higher the Q/d value the more likely that source would impact an area.

Q/d document

Q/d spreadsheet

Process level report of Q/D sources

Summary of county and sector emissions for 2016

Summary of county and sector emissions for 2028

Background data and computer code used to generate summaries.