| Bannock |
Pocatello |
µg/m³ |
36.9 |
9.8 |
9.5 |
9.2 |
8.9 |
8.6 |
8.5 |
8.3 |
8.3 |
8.2 |
9 |
10.4 |
12.3 |
14.3 |
15.7 |
16.3 |
17.6 |
19.2 |
21 |
23.4 |
26.2 |
29.2 |
31.9 |
34.4 |
36.9 |
| Boise |
Idaho City |
µg/m³ |
67.6 |
46.1 |
48.3 |
50.7 |
52.8 |
54.7 |
56.3 |
58 |
59.5 |
61.3 |
62.9 |
64.5 |
65.5 |
66.5 |
67.1 |
67.1 |
67.6 |
67.3 |
65.6 |
63.5 |
61.6 |
60.4 |
59.4 |
58.7 |
58.1 |
| Bonner |
Sandpoint |
µg/m³ |
20 |
19.7 |
20 |
20 |
19.2 |
18.4 |
17.6 |
17.1 |
17.1 |
15.3 |
14.7 |
14.4 |
13.9 |
14 |
13.8 |
13.7 |
13.2 |
13.2 |
12.4 |
11.7 |
11.1 |
10.3 |
9.5 |
8.5 |
7.7 |
| Bonneville |
Idaho Falls |
µg/m³ |
28.8 |
13.1 |
12.9 |
12.7 |
12.2 |
12.1 |
12 |
11.9 |
12.1 |
12 |
12.5 |
13 |
13.7 |
14 |
13.8 |
13.9 |
14 |
15 |
15.6 |
17 |
19 |
21.5 |
24 |
26.4 |
28.8 |
| Boundary |
Bonners Ferry |
µg/m³ |
16.1 |
16.1 |
15.6 |
15.3 |
15 |
14.1 |
13.1 |
11.8 |
11.2 |
11.3 |
10.9 |
10.5 |
10.3 |
10.1 |
9.1 |
8.8 |
8.8 |
8.3 |
8.7 |
8.9 |
8.7 |
8.7 |
8.6 |
8.5 |
8.3 |
| Canyon |
Nampa |
µg/m³ |
55.2 |
42.1 |
43.3 |
44 |
44 |
44.3 |
45.7 |
47.9 |
49.8 |
50.1 |
51 |
52.6 |
53.9 |
54.5 |
55.2 |
55 |
54.2 |
52.4 |
51.3 |
50.3 |
48.5 |
48.2 |
48.5 |
49.2 |
50 |
| Clearwater |
Orofino - Nez Perce Tribe |
µg/m³ |
40.1 |
25.1 |
24.9 |
25 |
25.1 |
25.2 |
25 |
25 |
24.9 |
25 |
24.4 |
23.8 |
23.2 |
23.7 |
23.4 |
24.4 |
27.5 |
31.3 |
34.5 |
37 |
37.8 |
38.5 |
39.1 |
39.9 |
40.1 |
| Idaho |
Cottonwood |
µg/m³ |
42.6 |
24 |
24.1 |
23.4 |
23 |
23.1 |
22.9 |
22.7 |
22.1 |
22.5 |
22.2 |
22 |
21.8 |
21.8 |
21.9 |
22.3 |
22.9 |
23.4 |
27.8 |
34.3 |
36.2 |
37.8 |
40.5 |
42.3 |
42.6 |
| Kootenai |
Coeur d'Alene |
µg/m³ |
13 |
13 |
12.8 |
12.2 |
11.8 |
11.4 |
11 |
10.9 |
10.5 |
9.5 |
8 |
6.7 |
6.4 |
6.3 |
6.5 |
6.6 |
6.7 |
6.9 |
7 |
7.1 |
7.2 |
7.5 |
7.7 |
8 |
8.3 |
| Latah |
Juliaetta |
µg/m³ |
40.1 |
20.8 |
20.4 |
20.6 |
20.5 |
20.9 |
21 |
21.1 |
21.2 |
22.1 |
23.8 |
25.5 |
27.2 |
30.3 |
33.6 |
37 |
37.4 |
38.5 |
38.8 |
39.8 |
40.1 |
40.1 |
39.7 |
39.5 |
39.1 |
| Lemhi |
Salmon |
µg/m³ |
35.8 |
21.7 |
22.6 |
23.6 |
24.7 |
25.7 |
26.7 |
27.8 |
28.6 |
29.9 |
31.2 |
32.6 |
33.7 |
34.7 |
35.8 |
35.5 |
34.9 |
33.8 |
32.3 |
31.7 |
30.7 |
29.7 |
29.2 |
29 |
29 |
| Lewis |
Nezperce - Nez Perce Tribe |
µg/m³ |
47.6 |
39.7 |
39.4 |
39.3 |
39.5 |
39.3 |
38.7 |
38.8 |
39.6 |
40.1 |
40.2 |
39.8 |
39 |
38 |
37.3 |
34.2 |
31.2 |
32.2 |
36 |
39.8 |
42.5 |
43.2 |
43.7 |
45.7 |
47.6 |
| Lewis |
Reubens - Nez Perce Tribe |
µg/m³ |
44.8 |
25.6 |
25.6 |
24.9 |
24.5 |
23.1 |
22.4 |
22.5 |
22.3 |
22.1 |
22 |
22.2 |
22.5 |
23.9 |
26.4 |
28 |
29.5 |
31.5 |
33.5 |
36 |
37.1 |
38.7 |
40.7 |
42.1 |
44.8 |
| Lewis/Idaho |
Kamiah - Nez Perce Tribe |
µg/m³ |
54 |
38 |
38.5 |
39.1 |
39.5 |
39.9 |
40.2 |
40.3 |
40.3 |
41.1 |
41.2 |
41.2 |
41.5 |
40.5 |
39.8 |
38.2 |
35.3 |
33.9 |
34.5 |
39.6 |
44.4 |
48.5 |
51.8 |
53.2 |
54 |
| Nez Perce |
Lapwai - Nez Perce Tribe |
µg/m³ |
75.1 |
20.2 |
20.2 |
20.7 |
21.7 |
22.5 |
23.1 |
23.4 |
30 |
40.2 |
50 |
57.7 |
60 |
62.1 |
64.2 |
66 |
67.7 |
69.3 |
70.2 |
71 |
71.5 |
72.2 |
73.3 |
74.1 |
75.1 |
| Nez Perce |
Lewiston |
µg/m³ |
99.7 |
24.4 |
24.7 |
25.8 |
30.6 |
37.8 |
50.9 |
58.7 |
64.7 |
71.7 |
81.2 |
85.9 |
89.5 |
92.6 |
94.3 |
95.7 |
96.7 |
97.5 |
98.5 |
99.3 |
99.5 |
99.4 |
99.5 |
99.7 |
99.7 |
| Shoshone |
Pinehurst |
µg/m³ |
20.9 |
20.9 |
19.3 |
17.8 |
16.5 |
14.5 |
11.9 |
10.2 |
9.5 |
9 |
8.3 |
7.9 |
7.5 |
6.9 |
6.3 |
6.2 |
6.9 |
8 |
9.1 |
10 |
10.7 |
11.5 |
12.1 |
12.4 |
13 |
| Twin Falls |
Twin Falls |
µg/m³ |
64.6 |
5.6 |
9.1 |
12 |
14.8 |
17.5 |
19.9 |
20.5 |
24.8 |
28.5 |
32 |
35.2 |
37.9 |
40.3 |
42.7 |
43.6 |
46.6 |
49.5 |
52.4 |
54.8 |
57 |
58.6 |
60.1 |
62 |
64.6 |