Table 2b: People at Risk In 25 Most Ozone-Polluted Cities

2006 Rank1	Metropolitan Statistical Areas	Total Population2	Under 183	65 and Over3	Pediatric Asthma4,8	Adult Asthma5,8	Chronic Bronchitis6,8	Emphysema7,8
1	Bakersfield,CA	734,846	224,367	66,154	19,004	39,061	20,617	7,335
2	Los Angeles-Long Beach-Riverside,CA	17,516,110	4,872,222	1,758,285	412,677	969,762	517,046	190,563
3	Visalia-Porterville,CA	401,502	130,518	37,363	11,055	20,726	11,015	4,011
4	Fresno-Madera,CA	1,005,723	304,593	98,575	25,799	53,635	28,576	10,494
5	Merced,CA	237,005	77,167	21,066	6,536	12,205	6,444	2,293
6	Houston-Baytown-Huntsville,TX	5,280,752	1,495,654	416,757	126,682	272,580	152,619	52,613
7	Sacramento-Arden-Arcade-Truckee,CA-NV	2,159,756	553,817	250,700	46,908	123,379	67,020	26,119
8	Dallas-Fort Worth, TX	5,931,956	1,652,762	487,107	139,989	307,273	172,023	59,293
9	New York-Newark-Bridgeport, NY-NJ-CT-PA	21,858,830	5,332,462	2,767,878	451,660	1,467,303	697,083	280,071
10	Philadelphia-Camden-Vineland, PA-NJ-DE-MD	5,951,797	1,465,094	774,475	124,093	400,635	190,445	77,708
11	Hanford-Corcoran,CA	142,561	39,811	10,374	3,372	7,801	3,987	1,253
12	Washington-Baltimore-Northern Virginia, DC-MD-VA-WV	8,026,807	2,012,234	818,310	170,436	467,406	249,148	93,469
13	Modesto,CA	498,355	148,528	49,560	12,580	26,808	14,316	5,302
14	Knoxville-Sevierville-La Follette, TN	817,867	176,910	113,922	14,984	57,435	27,350	11,312
15	Charlotte-Gastonia-Salisbury, NC-SC	2,067,810	532,770	219,247	45,126	116,343	63,430	23,913
16	Cleveland-Akron-Elyria,OH	2,942,303	709,772	416,421	60,118	189,311	96,106	40,652
17	Pittsburgh-New Castle, PA	2,494,949	534,429	432,913	45,266	171,493	86,578	39,272
18	Columbus-Marion-Chillicothe,OH	1,920,601	477,729	200,195	40,464	123,622	59,340	22,074
19	Raleigh-Durham-Cary,NC	1,467,434	369,045	129,254	31,258	82,865	44,212	15,364
20	Youngstown-Warren-East Liverpool, OH-PA	701,557	157,392	117,341	13,331	46,138	23,957	10,768
20	Cincinnati-Middletown-Wilmington, OH-KY-IN	2,100,501	530,912	246,114	44,968	132,969	65,740	25,787
20	Baton Rouge-Pierre Part, LA	751,965	190,962	74,347	16,174	34,181	22,968	8,406
23	San Antonio, TX	1,854,050	513,395	198,796	43,485	96,115	55,351	20,990
24	St. Louis-St. Charles-Farmington,MO-IL	2,824,778	692,806	361,144	58,681	191,293	90,294	36,582
25	South Bend-Mishawaka, IN-MI	318,192	81,611	42,423	6,912	19,849	10,054	4,142
25	Huntington-Ashland, WV-KY-OH	287,038	61,356	44,520	5,197	20,664	9,776	4,220
25	Buffalo-Niagara-Cattaraugus,NY	1,237,557	285,124	191,098	24,150	84,449	41,308	17,929

(1) Cities are ranked using the highest weighted average for any county within that metropolitan area.
(2) Total Population represent the at-risk populations for all counties within the respective CSA or MSA.
(3) Those 18 & under and 65 & over are vulnerable to ozone and are therefore included. They should not be used as population denominators for disease estimates.
(4) Pediatric asthma estimates are for those under 18 years of age and represent the estimated number of children who had asthma based on 2004 national rates (NHIS) applied to county
population estimates (US Census).
(5) Adult asthma estimates are for those 18 years and older and represents the estimated number of people who had asthma during 2004 based on state rates (BRFSS) applied to county
population estimates (US Census).
(6) Chronic bronchitis estimates are for adults 18 and over who had been diagnosed with this disease within 2004 based on national rates (NHIS) applied to county population estimates
(US Census).
(7) Emphysema estimates are for adults 18 and over who have been diagnosed with this disease within their lifetime based on national rates (NHIS) applied to county population estimates
(US Census).
(8) Adding across rows does not produce valid estimates, i.e. summing pediatric and adult asthma and/or emphysema and chronic bronchitis.