June 2009
Front Matter
Training
19
Suggested
Analyses (3 of 4)
•Examine key species noted as tracers for the expected sources in the area using scatter plots and correlation matrices
•Compare concentrations of air toxics and nontoxic
tracer species to further assess sources
(e.g., PM2.5 components, hydrocarbons)
Do
the air toxics corroborate the source mixture?
Investigate
Google map of area; overlay VOC,
PM2.5, and air toxics emission inventory information
What
are the potential toxics sources in the area?
What
are local sources of air toxics?
Example
Analyses
Questions