Quarterly Median		
	Days with	Range	Q1	Q2	Q3	Q4	Annual	Annual	
MSA Name	MSA Code	N	AQI >100	Min	Max	Median	(n)	Median	(n)	Median	(n)	Median	(n)	Median	Mean	±SD	
Albuquerque,NM	 200	365	  0	  3	 49	 22.0	(90)	 15.0	(91)	 10.0	(92)	 22.0	(92)	 17.0	18.53	±8.80	
Atlanta,GA	 520	365	  0	  3	 49	 15.0	(90)	 13.0	(91)	 11.0	(92)	 17.0	(92)	 14.0	14.16	±6.44	
Austin-San Marcos,TX	 640	363	  0	  3	 13	  5.0	(90)	  3.0	(91)	  3.0	(90)	  6.0	(92)	  3.0	 4.60	±2.00	
Baltimore,MD	 720	365	  0	  3	 39	 10.0	(90)	  8.0	(91)	  6.0	(92)	 13.0	(92)	  8.0	10.17	±6.02	
Baton Rouge,LA	 760	363	  0	  3	 62	 12.0	(90)	  9.0	(90)	 11.0	(92)	 13.0	(91)	 11.0	12.65	±6.88	
Bergen-Passaic,NJ	 875	365	  0	  3	 41	 13.0	(90)	 19.0	(91)	 20.0	(92)	 20.0	(92)	 18.0	18.27	±6.22	
Birmingham,AL	1000	365	 40	  3	265	 54.0	(90)	 26.0	(91)	 24.0	(92)	 34.0	(92)	 32.0	47.02	±45.53	
Boise City,ID	1080	365	  0	  8	 54	 33.5	(90)	 25.0	(91)	 26.0	(92)	 31.0	(92)	 28.0	28.54	±8.25	
Boston,MA-NH	1120	365	  0	  3	 35	 13.0	(90)	  9.0	(91)	  7.0	(92)	 14.0	(92)	 10.0	11.05	±5.37	
Charleston-North Charleston,SC	1440	361	  0	  3	 34	  8.0	(90)	  7.0	(91)	  6.0	(88)	  8.0	(92)	  7.0	 8.18	±4.67	
Charlotte-Gastonia-Rock Hill,NC-SC	1520	365	  0	  6	 49	 13.0	(90)	  8.0	(91)	  9.0	(92)	 17.0	(92)	 11.0	13.93	±8.65	
Chicago,IL	1600	365	  0	  8	 53	 22.5	(90)	 23.0	(91)	 21.0	(92)	 27.0	(92)	 23.0	24.09	±6.90	
Cincinnati,OH-KY-IN	1640	365	  0	  3	 34	 13.0	(90)	 10.0	(91)	 10.0	(92)	 10.0	(92)	 11.0	11.84	±4.74	
Cleveland-Lorain-Elyria,OH	1680	365	  0	  6	 48	 17.0	(90)	 15.0	(91)	 14.0	(92)	 14.0	(92)	 15.0	15.75	±5.54	
Columbia,SC	1760	359	  0	  3	 43	 13.0	(84)	  9.0	(91)	  9.0	(92)	 14.0	(92)	 11.0	11.87	±6.29	
Columbus,OH	1840	365	  0	  3	 38	  8.0	(90)	  8.0	(91)	  7.0	(92)	  9.0	(92)	  8.0	 8.87	±4.28	
Dallas,TX	1920	356	  0	  3	 28	  7.0	(90)	  3.0	(91)	  3.0	(86)	  6.0	(89)	  5.0	 6.69	±5.01	
Denver,CO	2080	365	  0	  8	 52	 20.0	(90)	 14.0	(91)	 17.0	(92)	 25.0	(92)	 17.0	20.50	±9.50	
Des Moines,IA	2120	365	  0	  8	 55	 16.0	(90)	 13.0	(91)	 14.0	(92)	 15.0	(92)	 15.0	15.48	±5.39	
Detroit,MI	2160	365	  0	  3	 44	  7.0	(90)	  8.0	(91)	  8.0	(92)	 14.0	(92)	  9.0	10.45	±6.92	
Fayetteville,NC	2560	175	  0	  3	 45	 16.5	(90)	 14.0	(1)	 18.5	(84)	   . 	(.)	 17.0	18.21	±8.96	
Fort Lauderdale,FL	2680	365	  0	  5	 55	 16.0	(90)	 11.0	(91)	 13.0	(92)	 11.0	(92)	 13.0	14.54	±7.52	
Fort Wayne,IN	2760	365	  0	  3	 33	  5.5	(90)	  9.0	(91)	 14.0	(92)	 11.0	(92)	 10.0	10.96	±6.55	
Fort Worth-Arlington,TX	2800	362	  0	  3	 30	  9.0	(90)	  7.0	(91)	  5.0	(92)	  8.0	(89)	  7.0	 8.52	±4.73	
Gary,IN	2960	350	  0	  3	 39	  8.0	(75)	  7.0	(91)	  9.0	(92)	  9.0	(92)	  8.5	 9.65	±5.48	
Grand Rapids-Muskegon-Holland,MI	3000	365	  0	  3	 36	  4.0	(90)	  3.0	(91)	  3.0	(92)	  6.5	(92)	  5.0	 6.41	±5.77	
Greensboro-Winston Salem-High Point,NC	3120	365	  0	  6	 48	 18.0	(90)	 11.0	(91)	 11.0	(92)	 21.0	(92)	 14.0	16.24	±7.96	
Greenville-Spartanburg-Anderson,SC	3160	362	  0	  3	 42	 11.0	(90)	  6.0	(91)	  7.0	(91)	 15.0	(90)	  8.0	11.13	±7.95	
Hartford,CN	3280	365	  0	  6	 67	 24.5	(90)	 23.0	(91)	 24.0	(92)	 27.0	(92)	 24.0	24.82	±7.40	
Honolulu,HI	3320	365	  0	  7	 31	 11.0	(90)	 10.0	(91)	 10.0	(92)	 10.0	(92)	 10.0	10.90	±2.72	
Houston,TX	3360	365	  0	  3	 56	 10.0	(90)	 11.0	(91)	 11.0	(92)	 11.0	(92)	 11.0	12.78	±6.36	
Huntington-Ashland,WV-KY-OH	3400	359	  0	  3	 24	  3.0	(86)	  3.0	(91)	  3.0	(90)	  6.5	(92)	  3.0	 4.89	±3.85	
Indianapolis,IN	3480	365	  0	  6	 35	 16.0	(90)	 13.0	(91)	 13.5	(92)	 15.0	(92)	 14.0	14.22	±4.15	
Jackson,MS	3560	351	  0	  3	 52	  6.0	(81)	  3.0	(88)	  5.0	(90)	 12.0	(92)	  5.0	 8.85	±8.88	
Jacksonville,FL	3600	363	  0	  3	 40	 13.0	(90)	 11.0	(91)	  8.5	(90)	 10.0	(92)	 11.0	11.90	±5.54	
Jersey City,NJ	3640	360	  0	  3	 36	 18.0	(90)	 17.0	(86)	 16.0	(92)	 18.5	(92)	 17.0	17.31	±6.21	
Kansas City,MO-KS	3760	365	  0	  3	 47	 14.0	(90)	 10.0	(91)	  9.0	(92)	 16.0	(92)	 13.0	14.47	±8.40	
Knoxville,TN	3840	365	  0	  3	 34	 11.0	(90)	  9.0	(91)	  9.0	(92)	 16.0	(92)	 10.0	12.04	±7.12	
Las Cruces,NM	4100	365	  0	  3	 40	 14.0	(90)	  8.0	(91)	  7.0	(92)	 16.0	(92)	 10.0	12.29	±7.22	
Las Vegas,NV-AZ	4120	365	  0	  5	 78	 22.0	(90)	 15.0	(91)	 17.5	(92)	 32.0	(92)	 20.0	23.94	±13.97	
Lexington,KY	4280	357	  0	  3	 31	  3.0	(90)	  3.0	(91)	  3.0	(84)	  3.0	(92)	  3.0	 4.58	±4.15	
Lincoln,NE	4360	363	  0	  3	 59	 13.0	(90)	 11.0	(91)	 10.0	(90)	 13.5	(92)	 13.0	13.46	±7.16	
Little Rock-North Little Rock,AR	4400	362	  0	  3	 30	 14.0	(90)	 10.0	(91)	 10.0	(89)	 15.0	(92)	 13.0	12.57	±4.29	
Los Angeles-Long Beach,CA	4480	365	  0	  9	 82	 35.0	(90)	 17.0	(91)	 17.0	(92)	 38.0	(92)	 22.0	28.89	±17.12	
Louisville,KY-IN	4520	365	  0	  6	 47	 16.0	(90)	 15.0	(91)	 11.0	(92)	 18.0	(92)	 15.0	16.47	±6.94	
Memphis,TN-AR-MS	4920	365	  0	  3	 63	 13.0	(90)	 11.0	(91)	 11.0	(92)	 17.0	(92)	 13.0	15.58	±9.70	
Miami,FL	5000	365	  0	  6	 53	 13.0	(90)	 14.0	(91)	 15.0	(92)	 13.0	(92)	 14.0	15.07	±6.70	
Middlesex-Somerset-Hunterdon,NJ	5015	365	  0	  3	 52	 14.0	(90)	 13.0	(91)	 11.0	(92)	 15.0	(92)	 13.0	13.67	±5.42	
Milwaukee-Waukesha,WI	5080	365	  0	  3	 33	  9.0	(90)	  7.0	(91)	  5.0	(92)	  9.0	(92)	  7.0	 8.54	±5.06	
Minneapolis-St. Paul,MN-WI	5120	365	  0	  7	 92	 17.5	(90)	 17.0	(91)	 16.0	(92)	 18.5	(92)	 17.0	19.35	±9.20	
Monmouth-Ocean,NJ	5190	365	  0	  3	 54	 13.5	(90)	 11.0	(91)	 11.0	(92)	 13.0	(92)	 11.0	12.90	±6.24	
Nashville,TN	5360	365	  0	  6	 72	 16.5	(90)	 15.0	(91)	 14.0	(92)	 26.0	(92)	 16.0	20.81	±12.84