Table 5a: Top 25 Cleanest U.S. Cities for Long-term Particle Pollution (Annual PM2.5)1
|
2007 Rank2 |
Design Value3 |
Metropolitan Statistical Area |
Population |
|
1
|
4.7
|
Cheyenne, WY
|
85,163
|
|
2
|
4.8
|
Santa Fe-Espanola, NM
|
181,683
|
|
3
|
5.2
|
Honolulu, HI
|
905,266
|
|
4
|
6
|
Great Falls, MT
|
79,569
|
|
5
|
6.1
|
Farmington, NM
|
126,208
|
|
|
6.2
|
Flagstaff, AZ
|
123,866
|
|
6
|
6.2
|
Tucson, AZ
|
924,786
|
|
8
|
6.6
|
Anchorage, AK
|
|
|
8
|
6.6
|
Bismarck, ND
|
99,346
|
|
10
|
6.9
|
Albuquerque, NM
|
797,940
|
|
11
|
7
|
Salinas, CA
|
412,104
|
|
12
|
7.2
|
Pueblo, CO
|
|
|
13
|
7.3
|
Fort Collins-Loveland, CO
|
271,927
|
|
14
|
7.4
|
Rapid City, SD
|
118,203
|
|
14
|
7.4
|
Redding, CA
|
179,904
|
|
16
|
7.6
|
Duluth, MN-WI
|
275,413
|
|
16
|
7.6
|
Phoenix-Mesa-Scottsdale, AZ
|
3,865,077
|
|
16
|
7.6
|
Pocatello, ID
|
85,908
|
|
19
|
7.7
|
Fargo-Wahpeton, ND-MN
|
208,999
|
|
19
|
7.7
|
Midland-Odessa, TX
|
246,710
|
|
21
|
7.8
|
Miami-Fort Lauderdale-Miami Beach, FL
|
5,422,200
|
|
22
|
7.9
|
Billings, MT
|
146,593
|
|
23
|
8
|
Colorado Springs, CO
|
587,500
|
|
23
|
8
|
San Luis Obispo-Paso Robles, CA
|
255,478
|
|
25
|
8.1
|
Reno-Sparks-Fernley, NV
|
441,461
|
|
25 |
8.1 |
Palm Bay-Melbourne-Titusville, FL |
531,250 |
(1) This list represents cities with the lowest levels of annual PM2.5 air pollution.
(2) Cities are ranked using the highest design value for any county within that metropolitan area.
(3) The Design Value is the calculated concentration of a pollutant based on the form of the NAAQS, and is used by EPA to determine whether or not the air quality in a county meets the standard. The source for the Design Values is EPA, communication from the Office of Air Quality Planning & Standards, Mark Schmidt, October 30, 2006.
Tables continued...
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