| Bannock |
Pocatello |
µg/m³ |
8.4 |
8.4 |
8.4 |
8.4 |
8.2 |
8.1 |
8 |
8.1 |
8 |
8 |
8 |
7.8 |
7.6 |
7.2 |
6.9 |
6.6 |
6.5 |
6.6 |
6.6 |
6.5 |
6.3 |
6.3 |
6.4 |
6.3 |
6.2 |
| Boise |
Idaho City |
µg/m³ |
21.3 |
15.7 |
14.5 |
13.6 |
12.7 |
11.9 |
10.9 |
10.2 |
9.3 |
9.3 |
8.3 |
8.6 |
8.5 |
9.1 |
10.1 |
11 |
12.2 |
13.1 |
14.5 |
15.8 |
17 |
17.8 |
18.8 |
20.1 |
21.3 |
| Bonneville |
Idaho Falls |
µg/m³ |
8.6 |
8 |
7.9 |
8.1 |
8.1 |
8.2 |
8.2 |
8.2 |
8.4 |
8.5 |
8.6 |
8.4 |
8.4 |
8.3 |
8.2 |
7.9 |
8 |
7.8 |
7.6 |
7.6 |
7.5 |
7.3 |
7.2 |
7.1 |
6.8 |
| Boundary |
Bonners Ferry |
µg/m³ |
18.2 |
11.8 |
12.2 |
12.5 |
12.6 |
13.1 |
13.4 |
14 |
14.6 |
15.3 |
15.8 |
16.2 |
16.6 |
16.9 |
17.4 |
17.5 |
17.7 |
17.7 |
17.7 |
17.8 |
17.9 |
18.1 |
18 |
18.2 |
18.1 |
| Canyon |
Nampa |
µg/m³ |
18.6 |
12.1 |
12.6 |
12.7 |
12.8 |
12.8 |
13.2 |
13.1 |
13.4 |
13.4 |
13.6 |
13.8 |
14 |
14.3 |
15 |
15.7 |
16.3 |
16.6 |
16.7 |
16.9 |
17.3 |
17.8 |
18.5 |
18.5 |
18.6 |
| Clearwater |
Orofino - Nez Perce Tribe |
µg/m³ |
95 |
61.4 |
63.7 |
66.5 |
69.7 |
74 |
78.7 |
82 |
85.9 |
89.7 |
93.3 |
95 |
93.7 |
89.9 |
85.7 |
82.2 |
78.7 |
76.3 |
74.8 |
72.7 |
70.5 |
68.7 |
66.5 |
64.2 |
61.7 |
| Idaho |
Cottonwood |
µg/m³ |
55.4 |
55.2 |
55.4 |
55 |
54.4 |
54 |
53.2 |
52.3 |
51.3 |
50.3 |
48.4 |
46.4 |
44.9 |
42.8 |
38 |
33.8 |
29.7 |
26.1 |
24.5 |
24 |
23 |
21.9 |
21 |
19.7 |
18 |
| Idaho |
Grangeville |
µg/m³ |
59.2 |
59.2 |
58.4 |
57.5 |
57 |
56.5 |
56.3 |
56.2 |
55.2 |
53.7 |
52.2 |
50.4 |
49 |
47.2 |
45.5 |
43 |
38.1 |
32 |
29.1 |
26.9 |
25.4 |
24 |
22.7 |
21.6 |
20.3 |
| Kootenai |
Coeur d'Alene |
µg/m³ |
27.5 |
23.3 |
23.7 |
24.3 |
25 |
25.8 |
26.4 |
26.7 |
27.1 |
27.5 |
27.4 |
27.5 |
27.5 |
27.4 |
26.9 |
26.2 |
25.5 |
24.5 |
23.4 |
22.2 |
21.2 |
20.3 |
19.3 |
18.5 |
17.6 |
| Latah |
Juliaetta |
µg/m³ |
64.4 |
56.5 |
57.3 |
58.2 |
59.1 |
60.1 |
61 |
61.9 |
63 |
64.4 |
64 |
61.3 |
57.6 |
54.6 |
51.9 |
48.9 |
46.3 |
43.9 |
40.6 |
38 |
35.5 |
32.8 |
30.6 |
28 |
25.9 |
| Lemhi |
Salmon |
µg/m³ |
36.3 |
23.4 |
23.7 |
24 |
24.5 |
24.8 |
25 |
25.4 |
25.6 |
25.6 |
25.9 |
26.2 |
26.7 |
27.2 |
27.5 |
27.8 |
28.2 |
29.3 |
30.5 |
31.7 |
32.8 |
33.1 |
34 |
35.2 |
36.3 |
| Lewis |
Nezperce - Nez Perce Tribe |
µg/m³ |
66.4 |
65.5 |
66.2 |
66.4 |
66.1 |
66 |
65.2 |
64 |
63.6 |
62.4 |
61.3 |
60.8 |
58.6 |
54.7 |
49.5 |
46.4 |
43.6 |
40.6 |
37.7 |
36.1 |
35.1 |
34.5 |
33.2 |
32.7 |
32 |
| Lewis |
Reubens - Nez Perce Tribe |
µg/m³ |
42.7 |
42.7 |
42.2 |
41.5 |
41.1 |
40.7 |
40.5 |
39.9 |
39.5 |
38.9 |
38.1 |
37.2 |
37.2 |
36.7 |
36 |
32.5 |
29.9 |
27.4 |
25.6 |
23.7 |
22.9 |
22 |
22 |
21.7 |
21.2 |
| Lewis/Idaho |
Kamiah - Nez Perce Tribe |
µg/m³ |
195 |
148.3 |
155 |
161 |
166.5 |
170.5 |
174.6 |
179.4 |
183.8 |
188.1 |
191.2 |
195 |
195 |
190.9 |
183.5 |
174.4 |
165.1 |
156.7 |
149 |
140.3 |
131.6 |
122 |
111.7 |
101.5 |
91.8 |
| Nez Perce |
Lapwai - Nez Perce Tribe |
µg/m³ |
51 |
51 |
50.6 |
49.5 |
49.1 |
48.7 |
48.5 |
48.1 |
47.7 |
49.1 |
50.5 |
49.9 |
48.6 |
45.8 |
43 |
40.2 |
37.6 |
35.1 |
32.5 |
30.2 |
28.2 |
26.4 |
25.1 |
24 |
23 |
| Nez Perce |
Lewiston |
µg/m³ |
58.5 |
44.5 |
45.8 |
46.7 |
47.7 |
48.4 |
50 |
52.2 |
53.7 |
55.2 |
57.3 |
58.1 |
58.5 |
57.7 |
55.7 |
53.7 |
51.7 |
49.2 |
46.5 |
43.9 |
41.4 |
39.6 |
38.7 |
37.8 |
36.2 |
| Shoshone |
Pinehurst |
µg/m³ |
29.4 |
24.8 |
25.2 |
25.5 |
26.1 |
26.8 |
27 |
27.4 |
27.7 |
28.3 |
28.7 |
29 |
29.4 |
29.3 |
29.3 |
29 |
28.1 |
27 |
25.4 |
24.2 |
23.2 |
22 |
21.2 |
20.5 |
19.6 |
| Twin Falls |
Twin Falls |
µg/m³ |
15.6 |
15.6 |
14.8 |
14.2 |
13.9 |
13.8 |
13.5 |
13.3 |
13.7 |
14.3 |
14 |
14 |
13.9 |
13.8 |
13.8 |
13.8 |
13.6 |
13.6 |
13.2 |
13.2 |
13.8 |
14 |
14 |
14.5 |
15 |