Table 3b: People at Risk In 25 Most Ozone-Polluted Counties
| |
At-Risk Groups |
High Ozone Days in Unhealthy Ranges 2003-2005 |
|
2007 Rank1 |
County |
ST |
Total Population2 |
Under 183 |
65 and Over3 |
Pediatric Asthma4,8 |
Adult Asthma5,8 |
Chronic Bronchitis6,8 |
Emphysema7,8 |
Weighted Avg9 |
Grade10 |
1
|
SAN BERNARDINO
|
CA
|
1,963,535
|
605,131
|
158,725
|
53,857
|
97,597
|
53,654
|
19,657
|
103.3
|
F |
2
|
KERN
|
CA
|
756,825
|
232,363
|
67,288
|
20,680
|
37,686
|
20,780
|
7,858
|
101.5
|
F |
3
|
RIVERSIDE
|
CA
|
1,946,419
|
555,060
|
223,169
|
49,400
|
100,091
|
55,726
|
22,965
|
86.8
|
F |
4
|
LOS ANGELES
|
CA
|
9,935,475
|
2,739,469
|
998,963
|
243,813
|
519,004
|
288,953
|
114,234
|
80.8
|
F |
5
|
TULARE
|
CA |
410,874
|
134,343
|
38,049
|
11,957
|
19,900
|
11,028
|
4,302
|
79.5
|
F |
6
|
FRESNO
|
CA
|
877,584
|
270,845
|
84,678
|
24,105
|
43,682
|
24,239
|
9,523
|
52.0
|
F |
7
|
HARRIS
|
TX
|
3,693,050
|
1,066,672
|
283,631
|
94,934
|
177,117
|
104,332
|
37,811
|
42.8
|
F |
8
|
MERCED
|
CA
|
241,706
|
79,143
|
21,318
|
7,044
|
11,676
|
6,437
|
2,448
|
24.8
|
F |
9
|
TARRANT
|
TX
|
1,620,479
|
454,241
|
135,975
|
40,427
|
78,750
|
46,443
|
17,246
|
23.0
|
F |
10
|
SACRAMENTO
|
CA
|
1,363,482
|
373,540
|
148,453
|
33,245
|
71,513
|
40,041
|
16,380
|
22.7
|
F |
11
|
EL DORADO
|
CA
|
176,841
|
40,674
|
20,691
|
3,620
|
9,947
|
5,690
|
2,445
|
21.7
|
F |
12
|
VENTURA
|
CA
|
796,106
|
219,068
|
85,140
|
19,497
|
41,865
|
23,620
|
9,781
|
19.8
|
F |
13
|
NEVADA
|
CA
|
98,394
|
19,619
|
16,654
|
1,746
|
5,797
|
3,404
|
1,686
|
19.5
|
F |
14
|
PLACER
|
CA
|
317,028
|
73,536
|
44,284
|
6,545
|
17,684
|
10,074
|
4,519
|
19.3
|
F |
15
|
BRAZORIA
|
TX
|
278,484
|
76,508
|
24,776
|
6,809
|
13,689
|
8,104
|
3,089
|
15.5
|
F |
16
|
DALLAS
|
TX
|
2,305,454
|
656,796
|
191,724
|
58,455
|
110,979
|
65,235
|
23,942
|
14.5
|
F |
17
|
MARIPOSA
|
|
18,069
|
3,401
|
3,127
|
303
|
1,075
|
627
|
308
|
14.3
|
F |
18
|
EAST BATON ROUGE PARISH
|
LA
|
411,417
|
100,912
|
42,753
|
8,981
|
18,476
|
12,510
|
4,959
|
13.5
|
F |
19
|
DENTON
|
TX
|
554,642
|
149,313
|
29,438
|
13,289
|
26,950
|
15,647
|
4,893
|
13.3
|
F |
20
|
FAIRFIELD
|
CT
|
902,775
|
230,031
|
117,749
|
20,473
|
54,510
|
28,109
|
12,603
|
12.7
|
F |
21
|
HARFORD
|
MD
|
239,259
|
62,288
|
25,922
|
5,544
|
14,772
|
7,278
|
3,027
|
10.7
|
F |
22
|
CAMDEN
|
|
518,249
|
135,151
|
62,868
|
12,028
|
28,542
|
15,783
|
6,811
|
10.5
|
F |
22
|
OCEAN
|
NJ
|
558,341
|
129,714
|
117,169
|
11,545
|
31,736
|
18,338
|
9,891
|
10.5
|
F |
24
|
CALAVERAS
|
CA
|
46,871
|
9,219
|
8,077
|
820
|
2,766
|
1,621
|
804
|
10.0
|
F |
25
|
KINGS
|
CA
|
143,420
|
40,411
|
10,597
|
3,597
|
7,337
|
3,951
|
1,324
|
9.3
|
F |
| 25 |
STANISLAUS
|
|
505,505
|
150,921
|
50,172
|
13,432
|
25,566
|
14,234
|
5,657
|
9.3
|
F |
| 25 |
IBERVILLE PARISH |
LA |
32,386 |
7,838 |
3,635 |
698 |
1,455 |
997 |
409 |
9.3 |
F |
(1) Counties are ranked by weighted average.
(2) Total Population represent the at-risk populations in counties with ozone monitors.
(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 people who had asthma in 2005, based on national rates (NHIS) applied to county population estimates (U.S. Census).
(5) Adult asthma estimates are for those 18 years and older and represent the estimated number of people who had asthma during 2005, based on state rates (BRFSS) applied to county population estimates (U.S. Census).
(6) Chronic bronchitis estimates are for adults 18 and over who had been diagnosed in 2005, based on national rates (NHIS) applied to county population estimates (U.S. Census).
(7) Emphysema estimates are for adults 18 and over who have been diagnosed within their lifetime, based on national rates (NHIS) applied to county population estimates (U.S. Census).
(8) Adding across rows does not produce valid estimates, e.g., summing pediatric and adult asthma and/or emphysema and chronic bronchitis.
(9) The weighted average was derived by counting the number of days in each unhealthful range (orange, red, purple) in each year (2003-2005), multiplying the total in each range by the assigned standard weights (i.e., 1 for orange, 1.5 for red, 2.0 for purple), and calculating the average.
(10) Grade is assigned by weighted average as follows: A=0.0, B=0.3-0.9, C=1.0-2.0, D=2.1-3.2, F=3.3+.
Tables continued... |
