| Ada |
Boise White Pine |
µg/m³ |
40.7 |
40.7 |
40.6 |
40.5 |
40.5 |
40.5 |
40.5 |
40.7 |
40.2 |
39.6 |
39.4 |
39.3 |
38.6 |
38.3 |
37.9 |
37.4 |
36.3 |
35.2 |
34.2 |
33.3 |
32.7 |
32 |
31.2 |
30.6 |
30 |
| Ada |
Meridian |
µg/m³ |
35.4 |
35.4 |
35.1 |
34.6 |
34.3 |
33.9 |
33.5 |
33.1 |
32.5 |
31.9 |
31.6 |
30.9 |
30.6 |
30.4 |
29.8 |
29.1 |
28.4 |
27.5 |
26.6 |
26.2 |
26 |
25.6 |
25.2 |
24.8 |
24.3 |
| Bannock |
Pocatello |
µg/m³ |
19 |
19 |
19 |
18.7 |
18.4 |
18.2 |
17.9 |
17.7 |
17.6 |
17.5 |
17.2 |
16.2 |
15.4 |
14.6 |
13.8 |
14 |
13.4 |
13.1 |
12.7 |
12.3 |
11.9 |
11.6 |
11.4 |
11.2 |
10.8 |
| Benewah |
St Maries PM2.5 |
µg/m³ |
25.5 |
19.2 |
18.4 |
17.9 |
17.4 |
16.7 |
16.1 |
15.8 |
15.5 |
15 |
15 |
14.9 |
14.9 |
15.2 |
14.9 |
14.9 |
14.5 |
15.1 |
16.3 |
18 |
19.7 |
21.3 |
22.8 |
24.2 |
25.5 |
| Blaine |
Ketchum |
µg/m³ |
22.8 |
19.3 |
19.5 |
19.7 |
19.9 |
20.2 |
20.4 |
20.8 |
21.2 |
21.1 |
21.3 |
21.7 |
21.9 |
22.2 |
22.4 |
22.3 |
22.5 |
22.7 |
22.8 |
22.5 |
22.4 |
22.2 |
22 |
21.7 |
21.3 |
| Boise |
Garden Valley |
µg/m³ |
40.2 |
37.4 |
37.5 |
37.6 |
37.7 |
37.8 |
38 |
38 |
37.8 |
37.8 |
37.4 |
36.9 |
36.9 |
38.6 |
39.4 |
39.9 |
40.2 |
40.1 |
39.8 |
39.2 |
38.9 |
38.8 |
38.7 |
38.6 |
37.6 |
| Boise |
Idaho City |
µg/m³ |
37.2 |
37.1 |
37.2 |
36.8 |
36.8 |
36.7 |
36.7 |
36.7 |
36.9 |
36.9 |
36.5 |
36.4 |
36.6 |
36.8 |
36.4 |
36.4 |
36.3 |
36.1 |
35.7 |
35.3 |
34.6 |
34.1 |
33.2 |
32.5 |
32 |
| Bonner |
Sandpoint |
µg/m³ |
47.1 |
44.3 |
43 |
41.7 |
39.8 |
38.5 |
37.2 |
36.1 |
35.7 |
36 |
37.8 |
40 |
42.3 |
43.9 |
45 |
46.2 |
47.1 |
47 |
46.2 |
45.9 |
45.4 |
45.2 |
45.2 |
45 |
44.7 |
| Bonneville |
Idaho Falls |
µg/m³ |
20.8 |
20.8 |
20.5 |
20.1 |
19.6 |
19.3 |
19 |
18.3 |
17.4 |
16.7 |
15.6 |
14.7 |
14.1 |
13.6 |
12.9 |
12.3 |
12 |
12 |
11.7 |
11.4 |
11.1 |
10.7 |
10.4 |
10.2 |
10.1 |
| Boundary |
Bonners Ferry |
µg/m³ |
45.1 |
33 |
33.3 |
34.2 |
34.7 |
35.3 |
35.6 |
36.1 |
36.4 |
36.5 |
36.9 |
37.7 |
39.6 |
41.2 |
42.3 |
43.4 |
43.6 |
43.8 |
44.2 |
44.6 |
45.1 |
45.1 |
44.5 |
43.9 |
43.5 |
| Boundary |
Mt Hall |
µg/m³ |
63.3 |
43 |
43.7 |
44.9 |
46.3 |
47.6 |
49.2 |
50.7 |
52.3 |
54.3 |
56.5 |
58.6 |
60.9 |
62.3 |
63.3 |
62.8 |
62.1 |
61.5 |
61.2 |
60.9 |
60.4 |
59.7 |
58.8 |
58.1 |
56.5 |
| Boundary |
Porthill |
µg/m³ |
58.2 |
46.5 |
46.8 |
47.4 |
48 |
48.1 |
48.7 |
49.6 |
51.2 |
53.1 |
54.6 |
56.1 |
57.5 |
58 |
58 |
58.1 |
58.2 |
58 |
57.9 |
57.2 |
56.9 |
56.7 |
56.1 |
55.5 |
54.7 |
| Canyon |
Nampa |
µg/m³ |
40 |
40 |
39.7 |
39 |
38.2 |
37.7 |
36.8 |
35.6 |
34.7 |
33.9 |
33.2 |
32.8 |
32.6 |
32 |
31.5 |
30.6 |
29.3 |
28.2 |
27.5 |
26.9 |
26.3 |
25.5 |
25 |
24.2 |
23.2 |
| Clearwater |
Orofino - Nez Perce Tribe |
µg/m³ |
31.4 |
27.3 |
27.1 |
26.6 |
26.7 |
26.3 |
25.7 |
25 |
24.7 |
24.1 |
23.2 |
22.2 |
22.1 |
22.2 |
22 |
21.9 |
21.9 |
22.6 |
23.6 |
26.4 |
28.1 |
28.9 |
29.6 |
30.6 |
31.4 |
| Franklin |
Preston |
µg/m³ |
9.2 |
8.7 |
8.9 |
9 |
9.2 |
9.2 |
9.2 |
8.9 |
8.7 |
8.6 |
8.5 |
8.1 |
7.8 |
7.5 |
7.2 |
7.1 |
6.7 |
6.4 |
6.3 |
6.2 |
6.2 |
6.1 |
6 |
6 |
6.1 |
| Idaho |
Cottonwood |
µg/m³ |
17.9 |
17.9 |
17.4 |
17.3 |
17.2 |
17.3 |
17.4 |
17.1 |
16.1 |
15.4 |
15 |
14.6 |
14.2 |
13.8 |
13.3 |
12.9 |
12.8 |
12.5 |
12.5 |
12.1 |
12.3 |
12.8 |
13.2 |
13.6 |
14.1 |
| Idaho |
Grangeville |
µg/m³ |
23.8 |
23.8 |
23.2 |
22.5 |
22.1 |
21.6 |
21.2 |
20.4 |
19.7 |
18.8 |
17.9 |
17.2 |
16.5 |
16.6 |
16.3 |
15.9 |
15.6 |
15.5 |
15.2 |
15.1 |
15 |
15.2 |
15.6 |
16 |
16.7 |
| Kootenai |
Coeur d'Alene |
µg/m³ |
24.2 |
17.6 |
17.3 |
17.2 |
16.9 |
16.7 |
16.5 |
16.2 |
16.1 |
16 |
15.7 |
16.1 |
16.8 |
17.4 |
18 |
18.8 |
19.2 |
19.6 |
20.3 |
20.8 |
21.2 |
21.7 |
22.5 |
23.4 |
24.2 |
| Latah |
Juliaetta |
µg/m³ |
18.4 |
18.4 |
18 |
17.4 |
16.6 |
16.1 |
16 |
15.4 |
14.7 |
14 |
13.4 |
13.3 |
13.3 |
13.3 |
13.3 |
13.2 |
13.4 |
13.5 |
14 |
14.9 |
15.8 |
16.1 |
16.5 |
17.4 |
17.9 |
| Latah |
Troy |
µg/m³ |
18.9 |
13 |
12.9 |
12.7 |
12.4 |
12.4 |
12.4 |
12.4 |
12 |
11.9 |
11.6 |
11.8 |
11.8 |
11.7 |
11.8 |
12.2 |
12.9 |
13 |
14.1 |
15.1 |
16.1 |
16.6 |
17.3 |
17.5 |
18.9 |
| Lemhi |
Salmon |
µg/m³ |
27.3 |
27.3 |
26.9 |
26.5 |
26.2 |
25.7 |
25.5 |
25 |
24.9 |
25 |
24.4 |
24.4 |
24.2 |
24.2 |
24.7 |
25.1 |
25.6 |
26 |
26.6 |
27 |
27.1 |
26.9 |
26.8 |
26.5 |
26.7 |
| Lewis |
Nezperce - Nez Perce Tribe |
µg/m³ |
22.7 |
22.7 |
22 |
21.5 |
21.2 |
21.1 |
20.9 |
20.5 |
19.7 |
18.7 |
17.7 |
17.2 |
17.1 |
17.5 |
17.6 |
17.7 |
17.8 |
18 |
18.1 |
17.4 |
17.5 |
17.9 |
18 |
18.6 |
19 |
| Lewis |
Reubens - Nez Perce Tribe |
µg/m³ |
15.2 |
14.9 |
14.6 |
14.4 |
14.5 |
14.4 |
14.5 |
14.6 |
14.5 |
14.1 |
14.3 |
14.5 |
14.1 |
13.7 |
13.8 |
13.7 |
13.8 |
14 |
13.9 |
13.9 |
14.5 |
14.8 |
14.9 |
14.8 |
15.2 |
| Lewis/Idaho |
Kamiah - Nez Perce Tribe |
µg/m³ |
29.4 |
29.4 |
28.9 |
28.3 |
27.7 |
27 |
26.1 |
25.5 |
25.1 |
24.5 |
24.3 |
22.8 |
21.8 |
21.3 |
20.5 |
20.5 |
20.2 |
19.8 |
19.6 |
19.6 |
19.6 |
20.2 |
20.7 |
20.6 |
21 |
| Madison |
Rexburg |
µg/m³ |
19.5 |
19.5 |
18.8 |
18.1 |
17.6 |
17.2 |
16.8 |
16.7 |
16.5 |
15.9 |
15.2 |
14.3 |
13.5 |
13 |
12.5 |
12.1 |
12 |
11.6 |
11.4 |
11.2 |
10.9 |
10.9 |
11.1 |
10.9 |
11.1 |
| Nez Perce |
Lapwai - Nez Perce Tribe |
µg/m³ |
15.7 |
15.7 |
15.2 |
14.7 |
14.4 |
14 |
13.8 |
13.7 |
13.2 |
12.9 |
12.7 |
12.1 |
12 |
12.2 |
12.2 |
12.3 |
12.1 |
11.9 |
12.4 |
13 |
13.5 |
14 |
14.4 |
14.8 |
14.8 |
| Nez Perce |
Lewiston |
µg/m³ |
20.3 |
20.3 |
20 |
19.7 |
19.2 |
18.2 |
17.6 |
17.1 |
17.3 |
17 |
16.5 |
16 |
15.5 |
15.2 |
14.8 |
14.8 |
14.5 |
14.5 |
14.7 |
15 |
15.4 |
15.8 |
16.2 |
16.5 |
16.7 |
| Shoshone |
Pinehurst |
µg/m³ |
19.6 |
18.6 |
18.2 |
18 |
17.6 |
17.4 |
17.2 |
17.3 |
17.5 |
17.4 |
17.3 |
17.4 |
18.5 |
19 |
19.4 |
19.6 |
19.1 |
18.6 |
18.4 |
19.2 |
19.6 |
18.5 |
18.6 |
18.5 |
18.5 |
| Twin Falls |
Twin Falls |
µg/m³ |
31.8 |
28.1 |
28 |
27.8 |
27.4 |
27.3 |
27.4 |
27.6 |
27.7 |
27.7 |
27.7 |
27.5 |
27.6 |
27.9 |
28.1 |
28.5 |
28.9 |
29.5 |
30 |
30.7 |
30.9 |
31.4 |
31.8 |
31.1 |
30.6 |
| Valley |
McCall |
µg/m³ |
40.7 |
40.7 |
39.8 |
38.8 |
38.1 |
37.3 |
36.5 |
35.7 |
34.9 |
34 |
33.3 |
32.8 |
31.6 |
31 |
30.4 |
29.9 |
29.5 |
29.1 |
28.4 |
27.7 |
27.1 |
26.1 |
25.3 |
24.6 |
24 |
| Washington |
Weiser |
µg/m³ |
37.5 |
37.5 |
37.4 |
37.4 |
36.8 |
35.7 |
34.7 |
33.3 |
32.5 |
32 |
31.7 |
31.1 |
30.7 |
30.3 |
30.1 |
29.9 |
29.8 |
29.7 |
29.6 |
29.5 |
29.3 |
28.8 |
28.4 |
28 |
27.7 |