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 St. Charles · updated 10 hr ago · showing last good readingAir quality
48GoodUS AQI
PM2.5 7μg/m³PM10 8μg/m³Ozone 104μg/m³NO₂ 6μg/m³
Water monitoring
Missouri River At St. Charles, Mo · 2.2 km away
50000 ft3/sStreamflow
9.65 ftGage height
Active alerts
- ModerateHeat Advisory
- UnknownAir Quality Alert
Earthquakes · 30 days
✓ None ≥ M2.5 nearby
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 48 (Good). Observed Sep 2, 9:00 AM.
7.4 μg/m³PM2.5
7.9 μg/m³PM10
104.0 μg/m³Ozone
6.4 μg/m³NO₂
2.9 μg/m³SO₂
144.0 μg/m³CO
Source: Open-Meteo Air Quality ↗
Water monitoring — nearest site
Missouri River At St. Charles, Mo · 2.2 km away · 59 sites in range
50000 ft3/sStreamflow · Sep 2, 2:00 PM
9.65 ftGage height · Sep 2, 2:00 PM
Source: USGS Water Services ↗
Active weather alerts2
ModerateHeat Advisoryuntil Sep 6, 1:00 AM
Heat Advisory issued September 2 at 2:34AM CDT until September 5 at 8:00PM CDT by NWS St Louis MO
Madison; St. Clair; Monroe; St. Charles; St. Louis; St. Louis City; Jefferson
UnknownAir Quality Alertuntil Sep 2, 8:00 PM
Air Quality Alert issued September 1 at 2:56PM CDT by NWS St Louis MO
Madison; St. Clair; Monroe; St. Charles; Franklin; St. Louis; St. Louis City; Jefferson
Source: National Weather Service ↗
Earthquakes — last 30 days0
✓ No earthquakes ≥ M2.5 within 250 km.
Source: USGS Earthquake Catalog ↗
Superfund sites
33 active EPA Superfund (National Priorities List) sites in MO of 39 ever listed.
Westlake Landfill
Bridgeton · NPL Site · 5 km away
The state’s energy ledger
What MO’s grid runs on, its EV fleet and charging network, and where its mandate stands — from the national Energy Ledger.
Open the MO energy dossier →Snapshot generated Sep 2, 2:30 PM (showing last good reading while refreshing). All data is public and carries no personal information.