Environmental watch
What's in the air, water, and ground around here.
Live environmental OSINT for your community, pulled from public federal feeds — the EPA, the USGS, and the National Weather Service. No account, no tracking; every number links back to its public source. Auto-refreshes about every 30 minutes.
🌎 Environmental watch
Live public data for Great Falls · updated 2 hr ago · showing last good readingAir quality
39GoodUS AQI
PM2.5 1μg/m³PM10 2μg/m³Ozone 77μg/m³NO₂ 1μg/m³
Water monitoring
No live streamgage nearby.
Active alerts
✓ No active weather alerts
Earthquakes · 30 days
M3.7strongest within 250 km
7 km NNW of Black Eagle, Montana
1 quake ≥ M2.5
Sources: Open-Meteo Air Quality, USGS Water Services, National Weather Service, USGS Earthquake Catalog, EPA National Priorities List. All public, no personal data.
Air quality — full readout
US Air Quality Index 39 (Good). Observed Sep 29, 5:00 PM.
1.1 μg/m³PM2.5
1.7 μg/m³PM10
77.0 μg/m³Ozone
0.6 μg/m³NO₂
0.3 μg/m³SO₂
109.0 μg/m³CO
Source: Open-Meteo Air Quality ↗
Active weather alerts0
✓ No active National Weather Service alerts for this area.
Source: National Weather Service ↗
Earthquakes — last 30 days1
Source: USGS Earthquake Catalog ↗
Superfund sites
19 active EPA Superfund (National Priorities List) sites in MT of 19 ever listed.
ACM Smelter and Refinery
Black Eagle · NPL Site · 5 km away
The state’s energy ledger
What MT’s grid runs on, its EV fleet and charging network, and where its mandate stands — from the national Energy Ledger.
Open the MT energy dossier →Snapshot generated Sep 29, 11:13 PM (showing last good reading while refreshing). All data is public and carries no personal information.