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County | Site | Units | Max | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 |
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Ada | Garden City | µg/m³ | 10.8 | 9.8 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.9 | 9.9 | 10 | 10.2 | 10.5 | 10.8 | ||||||||||||
Ada | Meridian | µg/m³ | 10.4 | 10.4 | 9.9 | 9.9 | 9.9 | 9.7 | 9.7 | 10.2 | 10.4 | 10.4 | 10.2 | 10.3 | 10.4 | ||||||||||||
Bannock | Pocatello | µg/m³ | 10.2 | 10.2 | 10 | 10.2 | 10.2 | 9.5 | 8.9 | 8.7 | 8.3 | 7.6 | 7.1 | 6.9 | 6.7 | ||||||||||||
Benewah | Plummer - Coeur d'Alene Tribe | µg/m³ | -0.1 | -0.7 | -1.1 | -1 | -1 | -0.7 | -0.9 | -0.8 | -0.6 | -0.4 | -0.4 | -0.5 | -0.1 | ||||||||||||
Benewah | St. Maries | µg/m³ | 26.8 | 25.2 | 26.1 | 26.8 | 26.8 | 26.5 | 26 | 25.7 | 25.6 | 25.3 | 25.3 | 25.6 | |||||||||||||
Blaine | Ketchum | µg/m³ | 4.2 | 3.4 | 3.5 | 3.6 | 3.8 | 3.8 | 3.9 | 4 | 4 | 4.1 | 4.2 | 4.2 | 4.2 | ||||||||||||
Boise | Garden Valley | µg/m³ | 9.9 | 9.5 | 9.2 | 8.9 | 8.8 | 9 | 9.3 | 9.5 | 9.7 | 9.7 | 9.9 | 9.7 | 9.9 | ||||||||||||
Boise | Idaho City | µg/m³ | 37.8 | 24.3 | 24.6 | 25.3 | 26.6 | 28 | 29.9 | 31 | 32.8 | 34.3 | 35.5 | 36.7 | 37.8 | ||||||||||||
Bonner | Sandpoint | µg/m³ | 16.7 | 14.7 | 15 | 15.1 | 15.2 | 15.5 | 15.8 | 15.9 | 15.9 | 16.3 | 16.6 | 16.7 | |||||||||||||
Bonneville | Idaho Falls | µg/m³ | 3.7 | 3.4 | 3.3 | 3.2 | 3.2 | 3.3 | 3.2 | 3.4 | 3.6 | 3.7 | 3.7 | 3.4 | 3.5 | ||||||||||||
Boundary | Bonners Ferry | µg/m³ | 4.1 | 4.1 | 4.1 | 3.8 | 3.5 | 3.4 | 3.3 | 3.4 | 3.6 | 3.8 | |||||||||||||||
Canyon | Nampa | µg/m³ | 12.8 | 12.8 | 12.6 | 12.1 | 11.8 | 11.4 | 11.5 | 11.6 | 11.8 | 11.5 | 11.6 | 11.6 | 11.5 | ||||||||||||
Franklin | Preston | µg/m³ | 9.7 | 8.5 | 8.5 | 8.7 | 8.7 | 8.7 | 8.6 | 8.8 | 9 | 9.2 | 9.3 | 9.5 | 9.7 | ||||||||||||
Idaho | Grangeville | µg/m³ | 17.3 | 16.9 | 16.9 | 16.7 | 17.3 | 16.4 | 15.8 | 15.1 | 14.3 | 13.5 | 12.4 | 11.7 | |||||||||||||
Kootenai | Coeur d'Alene | µg/m³ | 11.7 | 10.4 | 10.9 | 11.2 | 11.5 | 11.7 | 11.7 | 11.7 | 11.6 | 11.4 | 11.3 | 11.3 | |||||||||||||
Latah | Moscow | µg/m³ | 4.4 | 3.9 | 3.9 | 3.9 | 4 | 3.9 | 3.8 | 3.8 | 3.9 | 3.9 | 4.2 | 4.4 | |||||||||||||
Lemhi | Salmon | µg/m³ | 16.9 | 16.9 | 16.7 | 16.1 | 15.6 | 15.5 | 15.2 | 15.5 | 15.9 | 15.8 | 15.5 | 14.9 | 14.6 | ||||||||||||
Lewis/Idaho | Kamiah - Nez Perce Tribe | µg/m³ | 20.7 | 18.7 | 19.1 | 19.2 | 19.9 | 20.2 | 20.4 | 20.7 | 20.6 | 20.5 | 20.6 | 20.1 | |||||||||||||
Nez Perce | Lapwai - Nez Perce Tribe | µg/m³ | 7.2 | 7.2 | 7.2 | 7 | 6.8 | 6.6 | 6.6 | 6.7 | 6.8 | 6.7 | 6.6 | 6.5 | |||||||||||||
Shoshone | Pinehurst | µg/m³ | 19.8 | 14.3 | 15.2 | 16 | 16.9 | 17.6 | 18 | 18.7 | 19.1 | 19.5 | 19.7 | 19.8 | |||||||||||||
Twin Falls | Twin Falls | µg/m³ | 4.3 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.8 | 4 | 4.1 | 4.2 | 4.3 | 4.2 | 4.2 | ||||||||||||
Valley | McCall | µg/m³ | 8 | 8 | 7.9 | 7.7 | 7.5 | 7.4 | 7.3 | 7.2 | 7.2 | 6.9 | 6.4 | 5.7 | 5.6 |