Table 2.

Spatial and temporal variability of annual PM_2.5 exposure (μg/m³).

	Min	5th	25th	50th	75th	95th	Max
Overall
	6.0	7.3	9.1	10.7	12.9	15.1	20.6
By Year
2000	10.4	11.1	12.4	14.8	16.0	17.8	20.6
2001	9.1	9.4	11.4	13.2	14.5	15.7	18.7
2002	7.9	8.6	10.2	12.3	13.4	14.6	16.7
2003	8.2	8.7	10.0	12.2	13.3	14.5	16.5
2004	8.6	9.3	10.7	12.4	13.6	14.7	17.1
2005	8.7	9.6	11.2	13.4	14.3	15.4	18.6
2006	8.3	9.4	10.6	12.3	13.5	14.7	17.0
2007	7.8	8.6	10.2	12.1	13.2	14.4	18.3
2008	7.1	7.8	8.8	10.7	11.8	12.4	15.7
2009	6.5	6.9	7.9	9.6	10.1	10.7	11.8
2010	6.8	7.3	8.4	10.3	10.9	11.6	13.6
2011	6.7	7.3	8.5	10.1	10.8	11.4	13.8
2012	6.8	7.1	7.9	9.0	9.5	10.0	12.1
2013	6.0	6.4	6.9	8.4	8.7	9.2	10.7
By State (Number of ZCTAs)
Alabama (590)	7.5	8.8	10.3	12.0	13.8	16.0	20.6
Florida (863)	6.0	6.8	8.0	9.2	10.6	12.1	15.4
Georgia (675)	7.2	8.9	10.5	12.2	14.3	15.8	19.4
Mississippi (377)	7.2	8.6	10.0	11.5	12.6	14.2	18.5
North Carolina (715)	7.3	8.5	10.0	12.3	13.7	15.2	17.9
South Carolina (373)	7.7	8.6	10.3	12.0	13.8	15.3	17.8
Tennessee (592)	6.5	8.7	10.0	12.2	13.6	15.8	20.2