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Table 4-47: Air Pollution Trends in Selected
Metropolitan Statistical Areas
(Number of days with AQI values
greater than 100 at trend sites and all monitoring sites)
Excel | CSV
| Akron,OH |
18 |
13 |
7 |
8 |
12 |
11 |
6 |
14 |
25 |
9 |
22 |
24 |
(R) 6 |
(R) 6 |
13 |
0 |
| Albany-Schenectady-Troy,NY |
25 |
5 |
5 |
6 |
3 |
4 |
3 |
3 |
6 |
1 |
11 |
8 |
5 |
2 |
3 |
1 |
| Albuquerque,NM |
68 |
3 |
18 |
1 |
0 |
0 |
0 |
0 |
1 |
0 |
2 |
4 |
2 |
2 |
0 |
1 |
| Allentown-Bethlehem-Easton,PA |
22 |
12 |
5 |
3 |
7 |
6 |
12 |
18 |
19 |
10 |
20 |
25 |
8 |
5 |
(R) 10 |
4 |
| Atlanta,GA |
49 |
19 |
19 |
15 |
35 |
25 |
31 |
50 |
73 |
39 |
24 |
20 |
12 |
12 |
11 |
18 |
| Austin-San Marcos,TX |
21 |
3 |
1 |
4 |
10 |
0 |
0 |
5 |
8 |
6 |
0 |
5 |
3 |
2 |
1 |
3 |
| Bakersfield,CA |
53 |
90 |
15 |
98 |
105 |
109 |
55 |
76 |
(R) 130 |
132 |
123 |
150 |
141 |
(R) 131 |
(R) 85 |
97 |
| Baltimore,MD |
71 |
27 |
20 |
40 |
36 |
28 |
30 |
51 |
41 |
23 |
33 |
42 |
20 |
16 |
(R) 25 |
20 |
| Baton Rouge,LA |
33 |
15 |
12 |
7 |
15 |
9 |
12 |
14 |
17 |
29 |
5 |
10 |
15 |
(R) 10 |
12 |
14 |
| Bergen-Passaic,NJ |
17 |
14 |
6 |
0 |
0 |
0 |
0 |
1 |
2 |
1 |
1 |
1 |
2 |
1 |
4 |
2 |
| Birmingham,AL |
48 |
31 |
21 |
6 |
32 |
15 |
8 |
23 |
51 |
49 |
(R) 29 |
(R) 16 |
(R) 9 |
13 |
(R) 29 |
20 |
| Boston,MA-NH |
75 |
10 |
10 |
0 |
0 |
0 |
0 |
0 |
(R) 4 |
0 |
3 |
9 |
8 |
1 |
(R) 4 |
1 |
| Buffalo-Niagara
Falls,NY |
33 |
9 |
10 |
4 |
6 |
3 |
1 |
13 |
8 |
5 |
13 |
(R) 21 |
8 |
0 |
(R) 8 |
3 |
| Charleston-North
Charleston,SC |
21 |
4 |
12 |
2 |
1 |
3 |
3 |
3 |
5 |
7 |
0 |
3 |
0 |
1 |
4 |
1 |
| Charlotte-Gastonia-Rock
Hill,NC-SC |
59 |
20 |
10 |
9 |
11 |
16 |
24 |
47 |
34 |
22 |
(R) 13 |
27 |
4 |
5 |
(R) 11 |
8 |
| Chicago,IL |
141 |
23 |
46 |
7 |
23 |
6 |
9 |
10 |
19 |
13 |
33 |
(R) 20 |
10 |
9 |
23 |
5 |
| Cincinnati,OH-KY-IN |
84 |
20 |
17 |
16 |
19 |
10 |
11 |
13 |
18 |
15 |
16 |
(R) 30 |
10 |
4 |
(R) 13 |
2 |
| Cleveland-Lorain-Elyria,OH |
80 |
28 |
27 |
23 |
24 |
17 |
10 |
20 |
(R) 35 |
21 |
(R) 27 |
30 |
(R) 14 |
(R) 16 |
(R) 20 |
6 |
| Columbus,OH |
30 |
12 |
7 |
9 |
15 |
13 |
7 |
17 |
24 |
12 |
14 |
21 |
9 |
1 |
8 |
1 |
| Dallas,TX |
81 |
32 |
7 |
24 |
20 |
8 |
20 |
24 |
16 |
20 |
14 |
7 |
5 |
9 |
10 |
13 |
| Dayton-Springfield,OH |
22 |
11 |
10 |
14 |
11 |
18 |
9 |
19 |
(R) 17 |
9 |
(R) 10 |
(R) 25 |
7 |
(R) 2 |
(R) 9 |
1 |
| Denver,CO |
82 |
2 |
23 |
2 |
3 |
0 |
0 |
7 |
3 |
2 |
8 |
7 |
(R) 17 |
0 |
1 |
6 |
| Detroit,MI |
75 |
25 |
31 |
11 |
14 |
13 |
11 |
17 |
23 |
(R) 15 |
31 |
(R) 26 |
19 |
(R) 5 |
(R) 24 |
6 |
| El Paso,TX |
56 |
6 |
14 |
6 |
3 |
6 |
2 |
6 |
5 |
5 |
8 |
12 |
7 |
3 |
(R) 4 |
5 |
| Fort Lauderdale,FL |
34 |
0 |
13 |
1 |
1 |
1 |
0 |
1 |
4 |
3 |
3 |
3 |
0 |
0 |
0 |
2 |
| Fort
Worth-Arlington,TX |
33 |
27 |
7 |
31 |
28 |
14 |
14 |
17 |
19 |
17 |
17 |
23 |
25 |
11 |
22 |
19 |
| Fresno,CA |
43 |
64 |
20 |
55 |
61 |
70 |
75 |
67 |
133 |
(R) 128 |
(R) 136 |
(R) 150 |
(R) 125 |
(R) 46 |
(R) 62 |
71 |
| Gary,IN |
62 |
13 |
14 |
6 |
17 |
11 |
11 |
9 |
21 |
(R) 17 |
(R) 32 |
21 |
(R) 8 |
(R) 6 |
(R) 11 |
0 |
| Grand
Rapids-Muskegon-Holland,MI |
39 |
21 |
13 |
14 |
18 |
9 |
10 |
19 |
23 |
7 |
18 |
24 |
12 |
4 |
(R) 19 |
9 |
| Greensboro-Winston
Salem-High Point,NC |
57 |
6 |
10 |
7 |
6 |
6 |
13 |
25 |
22 |
14 |
11 |
24 |
4 |
(R) 1 |
2 |
4 |
| Greenville-Spartanburg-Anderson,SC |
24 |
5 |
8 |
5 |
7 |
7 |
9 |
28 |
19 |
15 |
15 |
29 |
4 |
2 |
(R) 4 |
6 |
| Harrisburg-Lebanon-Carlisle,PA |
15 |
16 |
9 |
12 |
13 |
3 |
9 |
22 |
19 |
16 |
22 |
(R) 20 |
(R) 9 |
5 |
(R) 11 |
7 |
| Hartford,CT |
32 |
11 |
7 |
18 |
14 |
5 |
16 |
10 |
18 |
7 |
18 |
23 |
8 |
6 |
11 |
6 |
| Honolulu,HI |
30 |
3 |
11 |
0 |
0 |
0 |
0 |
0 |
2 |
2 |
2 |
2 |
2 |
2 |
(R) 2 |
1 |
| Houston,TX |
92 |
40 |
22 |
38 |
65 |
26 |
46 |
38 |
51 |
42 |
(R) 28 |
21 |
31 |
22 |
28 |
18 |
| Indianapolis,IN |
85 |
20 |
26 |
22 |
19 |
13 |
12 |
19 |
23 |
8 |
(R) 13 |
24 |
11 |
1 |
(R) 17 |
2 |
| Jacksonville,FL |
26 |
3 |
14 |
0 |
0 |
0 |
0 |
3 |
2 |
1 |
3 |
0 |
0 |
0 |
(R) 3 |
0 |
| Jersey City,NJ |
16 |
10 |
7 |
12 |
16 |
5 |
9 |
7 |
20 |
4 |
7 |
8 |
5 |
1 |
8 |
10 |
| Kansas City,MO-KS |
75 |
16 |
16 |
10 |
21 |
6 |
16 |
14 |
3 |
10 |
(R) 4 |
7 |
11 |
0 |
(R) 9 |
11 |
| Knoxville,TN |
52 |
18 |
18 |
16 |
24 |
20 |
36 |
54 |
(R) 60 |
34 |
(R) 22 |
43 |
14 |
3 |
14 |
11 |
| Las Vegas,NV-AZ |
86 |
10 |
9 |
2 |
0 |
2 |
0 |
0 |
0 |
0 |
1 |
2 |
(R) 2 |
(R)
0 |
2 |
2 |
| Little
Rock-North Little Rock,AR |
26 |
12 |
4 |
2 |
7 |
1 |
1 |
2 |
6 |
16 |
4 |
(R) 9 |
1 |
0 |
(R) 8 |
4 |
| Los Angeles-Long
Beach,CA |
120 |
80 |
52 |
127 |
103 |
77 |
42 |
49 |
54 |
63 |
81 |
81 |
88 |
65 |
(R) 43 |
34 |
| Louisville,KY-IN |
53 |
17 |
17 |
28 |
24 |
11 |
18 |
29 |
47 |
15 |
18 |
28 |
(R) 11 |
3 |
(R) 15 |
7 |
| Memphis,TN-AR-MS |
40 |
15 |
13 |
10 |
21 |
19 |
17 |
27 |
35 |
28 |
15 |
17 |
9 |
2 |
12 |
9 |
| Miami,FL |
19 |
1 |
15 |
1 |
2 |
1 |
3 |
8 |
7 |
2 |
1 |
1 |
1 |
3 |
(R)
0 |
1 |
| Middlesex-Somerset-Hunterdon,NJ |
13 |
15 |
4 |
9 |
16 |
8 |
18 |
21 |
23 |
9 |
(R) 13 |
(R) 20 |
(R) 8 |
6 |
12 |
5 |
| Milwaukee-Waukesha,WI |
53 |
18 |
17 |
9 |
14 |
5 |
4 |
10 |
18 |
5 |
(R) 20 |
(R) 10 |
9 |
6 |
(R) 16 |
4 |
| Minneapolis-St.
Paul,MN-WI |
121 |
6 |
17 |
2 |
3 |
0 |
0 |
1 |
0 |
(R) 6 |
6 |
1 |
1 |
0 |
2 |
0 |
| Monmouth-Ocean,NJ |
5 |
16 |
4 |
13 |
20 |
17 |
21 |
31 |
27 |
11 |
21 |
32 |
13 |
8 |
16 |
10 |
| Nashville,TN |
50 |
11 |
17 |
21 |
26 |
22 |
20 |
30 |
(R) 37 |
(R) 20 |
7 |
16 |
7 |
1 |
(R) 10 |
6 |
| Nassau-Suffolk,NY |
19 |
10 |
7 |
15 |
10 |
8 |
12 |
11 |
18 |
5 |
5 |
14 |
7 |
3 |
10 |
5 |
| New Haven-Meriden,CT |
36 |
16 |
8 |
13 |
14 |
8 |
19 |
9 |
(R) 18 |
(R) 8 |
15 |
25 |
16 |
3 |
13 |
8 |
| New Orleans,LA |
51 |
5 |
14 |
8 |
20 |
8 |
7 |
7 |
18 |
20 |
6 |
2 |
8 |
5 |
4 |
4 |
| New York,NY |
104 |
16 |
15 |
13 |
17 |
11 |
22 |
14 |
22 |
19 |
(R) 19 |
(R) 27 |
(R) 11 |
6 |
15 |
11 |
| Newark,NJ |
43 |
15 |
15 |
12 |
20 |
11 |
13 |
22 |
26 |
12 |
(R) 18 |
(R) 29 |
(R) 11 |
7 |
(R) 11 |
13 |
| Norfolk-Virginia
Beach-Newport News,VA_NC |
24 |
1 |
12 |
6 |
6 |
4 |
17 |
15 |
17 |
5 |
7 |
15 |
4 |
2 |
1 |
3 |
| Oakland,CA |
81 |
5 |
17 |
1 |
8 |
4 |
0 |
6 |
(R) 17 |
(R) 10 |
(R) 11 |
(R) 21 |
(R) 7 |
(R) 7 |
(R) 5 |
10 |
| Oklahoma City,OK |
30 |
4 |
10 |
5 |
13 |
2 |
4 |
7 |
4 |
7 |
2 |
(R) 2 |
(R) 2 |
0 |
2 |
11 |
| Omaha,NE-IA |
36 |
1 |
13 |
1 |
1 |
0 |
0 |
5 |
5 |
(R) 1 |
2 |
0 |
(R) 1 |
1 |
1 |
0 |
| Orange County,CA |
30 |
9 |
8 |
14 |
8 |
6 |
3 |
5 |
4 |
5 |
6 |
4 |
5 |
3 |
0 |
5 |
| Orlando,FL |
22 |
5 |
14 |
3 |
1 |
1 |
4 |
11 |
4 |
3 |
4 |
1 |
0 |
0 |
5 |
1 |
| Philadelphia,PA-NJ |
91 |
27 |
43 |
26 |
30 |
22 |
32 |
37 |
(R) 33 |
21 |
(R) 34 |
35 |
(R) 19 |
(R) 9 |
(R) 21 |
18 |
| Phoenix-Mesa,AZ |
145 |
19 |
25 |
6 |
16 |
14 |
12 |
14 |
9 |
(R) 14 |
(R) 8 |
(R) 10 |
8 |
1 |
(R) 6 |
7 |
| Pittsburgh,PA |
121 |
48 |
44 |
19 |
25 |
11 |
20 |
39 |
40 |
32 |
(R) 50 |
50 |
37 |
39 |
48 |
36 |
| Portland-Vancouver,OR-WA |
49 |
4 |
14 |
2 |
2 |
6 |
0 |
3 |
5 |
(R) 6 |
(R) 2 |
6 |
0 |
3 |
(R) 2 |
2 |
| Providence-Fall
River-Warwick,RI-MA |
47 |
8 |
6 |
0 |
0 |
0 |
0 |
0 |
(R) 8 |
(R) 5 |
(R) 14 |
(R) 13 |
3 |
(R) 2 |
(R) 6 |
2 |
| Raleigh-Durham-Chapel
Hill,NC |
56 |
10 |
6 |
2 |
1 |
1 |
13 |
21 |
27 |
8 |
4 |
18 |
5 |
1 |
(R) 3 |
0 |
| Richmond-Petersburg,VA |
26 |
7 |
10 |
9 |
14 |
5 |
19 |
22 |
21 |
5 |
12 |
21 |
3 |
1 |
(R) 5 |
7 |
| Riverside-San
Bernardino,CA |
139 |
106 |
42 |
149 |
124 |
118 |
104 |
95 |
121 |
144 |
(R) 153 |
146 |
138 |
(R) 116 |
103 |
97 |
| Rochester,NY |
16 |
0 |
6 |
1 |
6 |
0 |
6 |
4 |
(R) 7 |
1 |
5 |
(R) 10 |
(R) 2 |
0 |
0 |
0 |
| Sacramento,CA |
91 |
53 |
21 |
36 |
41 |
40 |
14 |
27 |
65 |
41 |
47 |
57 |
(R) 36 |
26 |
39 |
43 |
| St, Louis,MO-IL |
134 |
35 |
43 |
31 |
34 |
20 |
15 |
23 |
31 |
20 |
20 |
(R) 33 |
13 |
2 |
(R) 27 |
12 |
| Salt Lake
City-Ogden,UT |
70 |
34 |
13 |
11 |
4 |
8 |
1 |
12 |
(R) 12 |
(R) 19 |
(R) 25 |
(R) 27 |
10 |
37 |
(R) 24 |
11 |
| San Antonio,TX |
23 |
4 |
2 |
3 |
17 |
2 |
3 |
6 |
9 |
0 |
0 |
17 |
4 |
4 |
3 |
2 |
| San Diego,CA |
57 |
9 |
29 |
46 |
48 |
30 |
14 |
32 |
33 |
31 |
30 |
20 |
20 |
16 |
7 |
15 |
| San Francisco,CA |
26 |
2 |
11 |
0 |
2 |
0 |
0 |
0 |
(R) 10 |
(R) 4 |
(R) 12 |
(R) 17 |
(R) 1 |
(R) 4 |
(R) 5 |
2 |
| San Jose,CA |
31 |
10 |
5 |
2 |
11 |
7 |
0 |
5 |
17 |
20 |
12 |
9 |
6 |
2 |
6 |
5 |
| SanJuan-Bayamon,PR |
52 |
0 |
14 |
0 |
0 |
1 |
1 |
0 |
0 |
0 |
1 |
0 |
0 |
0 |
0 |
0 |
| Scranton-Wilkes
Barre-Hazleton,PA |
18 |
4 |
12 |
7 |
12 |
4 |
11 |
7 |
12 |
3 |
12 |
(R) 22 |
6 |
1 |
4 |
1 |
| Seattle-Bellevue-Everett,WA |
63 |
1 |
9 |
1 |
0 |
0 |
0 |
3 |
6 |
(R) 8 |
6 |
(R) 7 |
2 |
1 |
(R) 3 |
5 |
| Springfield,MA |
39 |
13 |
11 |
12 |
9 |
4 |
9 |
7 |
14 |
4 |
17 |
17 |
9 |
4 |
(R) 11 |
6 |
| Syracuse,NY |
19 |
2 |
5 |
1 |
5 |
0 |
2 |
3 |
4 |
1 |
4 |
10 |
2 |
0 |
2 |
0 |
| Tacoma,WA |
17 |
3 |
4 |
2 |
0 |
1 |
0 |
4 |
1 |
(R) 15 |
(R) 10 |
(R) 9 |
(R) 3 |
3 |
(R) 4 |
8 |
| Tampa-St.
Petersburg-Clearwater,FL |
63 |
11 |
24 |
3 |
2 |
3 |
4 |
11 |
10 |
8 |
4 |
0 |
5 |
0 |
4 |
2 |
| Toledo,OH |
17 |
10 |
5 |
8 |
9 |
11 |
4 |
5 |
(R) 11 |
5 |
(R) 13 |
15 |
(R) 9 |
2 |
10 |
0 |
| Tucson,AZ |
52 |
2 |
20 |
0 |
3 |
0 |
1 |
0 |
7 |
0 |
0 |
3 |
1 |
0 |
(R) 1 |
0 |
| Tulsa,OK |
27 |
7 |
8 |
11 |
19 |
12 |
5 |
7 |
13 |
10 |
6 |
5 |
7 |
0 |
4 |
7 |
| Ventura,CA |
38 |
12 |
16 |
63 |
65 |
62 |
43 |
29 |
24 |
31 |
24 |
10 |
22 |
13 |
11 |
13 |
| Washington,DC-MD-VA-WV |
117 |
23 |
42 |
21 |
32 |
18 |
30 |
46 |
(R) 41 |
(R) 20 |
(R) 27 |
(R) 33 |
(R) 12 |
10 |
(R) 18 |
18 |
| West Palm
Beach-Boca Raton,FL |
23 |
0 |
5 |
0 |
0 |
0 |
0 |
2 |
1 |
1 |
1 |
0 |
0 |
0 |
0 |
0 |
| Wilmington-Newark,DE-MD |
41 |
13 |
8 |
24 |
27 |
13 |
21 |
24 |
22 |
21 |
(R) 24 |
22 |
11 |
4 |
12 |
10 |
| Youngstown-Warren,OH |
29 |
11 |
8 |
1 |
8 |
6 |
7 |
15 |
15 |
5 |
18 |
18 |
6 |
0 |
5 |
2 |
KEY: AQI = Air Quality Index; R = revised.
NOTES
The Air Quality Index (AQI) integrates information on 6
major pollutants (particulate matter less than 10 microns in diameter,
particulate matter less than 2.5 microns in diameter, sulfur dioxide, carbon
monoxide, ozone, and nitrogen dioxide) across an entire monitoring network
into a single number that represents the worst daily air quality experienced
in an urban area. An AQI greater than 100 indicates that at least 1 criteria
pollutant exceeded air quality standards on a given day; therefore, air quality
would be in the unhealthful range on that day. Air quality monitoring sites are selected
as "trend sites" if they have complete data for at least 8 of the
10 last years.
SOURCE
U.S. Environmental Protection Agency, Office of Air and
Radiation, Air Trends, Factbook and Related
Information, available at
http://www.epa.gov/airtrends/factbook.html as of Nov.28, 2007.
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