June 2009
Front Matter
Training
20
Suggested Analyses
(4 of 4)
Prepare annual box plots of key species to
evaluate trends
What are the annual trends in air toxics
concentrations?
•
Compare trends in co-emitted pollutants
•
Assess timing of controls and expected
reductions relevant to local monitoring of
pollutants.
How might changes in air toxics
concentrations be related to emissions
controls?
Do air toxics concentrations change over time?
Example Analyses
Questions