Montana Air Quality Nonattainment Status
MONTANA COMMUNITY DESIGNATION STATUS1
Reference: 40 CFR 81.327
Community
|
Pollutant
|
Non-
Attainment
|
Attainment/
Unclassified
|
SIP Call2
|
|
Laurel |
Sulfur Dioxide |
X |
|
|
|
East Helena |
Sulfur Dioxide |
X |
|
|
|
Billings |
Sulfur Dioxide |
|
|
X |
|
Billings |
Carbon Monoxide |
|
X |
|
|
Great Falls |
Carbon Monoxide |
|
X |
|
|
Missoula |
Carbon Monoxide |
|
X |
|
|
Kalispell |
Carbon Monoxide |
|
|
X |
|
East Helena |
Lead |
X |
|
|
|
Kalispell |
Particulate
(PM-10) |
X |
|
|
|
Columbia Falls |
Particulate
(PM-10) |
X |
|
|
|
Whitefish |
Particulate
(PM-10) |
X |
|
|
|
Libby |
Particulate
(PM-10) |
X |
|
|
|
Libby |
Particulate
(PM-2.5) |
X |
|
|
|
Missoula |
Particulate
(PM-10) |
|
X |
|
|
Thompson Falls |
Particulate
(PM-10) |
X |
|
|
|
Butte |
Particulate
(PM-10) |
X |
|
|
1 Only includes state-regulated communities.
2 SIP Call actions under Federal Clean Air Act authority Section 110(k)(5).
These are not nonattainment areas.
