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 Sioux Falls · updated 9 hr ago · showing last good readingAir quality
36GoodUS AQI
PM2.5 4μg/m³PM10 5μg/m³Ozone 101μg/m³NO₂ 2μg/m³
Water monitoring
No live streamgage nearby.
Active alerts
- SevereSevere Thunderstorm Watch
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 36 (Good). Observed Sep 1, 4:00 PM.
4.2 μg/m³PM2.5
5.1 μg/m³PM10
101.0 μg/m³Ozone
1.7 μg/m³NO₂
0.7 μg/m³SO₂
115.0 μg/m³CO
Source: Open-Meteo Air Quality ↗
Active weather alerts1
SevereSevere Thunderstorm Watchuntil Sep 2, 4:00 AM
Severe Thunderstorm Watch issued September 1 at 3:52PM CDT until September 1 at 11:00PM CDT by NWS Sioux Falls SD
Lyon, IA; Plymouth, IA; Sioux, IA; Pipestone, MN; Rock, MN; Dixon, NE; Aurora, SD; Bon Homme, SD; Charles Mix, SD; Clay, SD; Davison, SD; Douglas, SD; Gregory, SD; Hanson, SD; Hutchinson, SD; Lake, SD; Lincoln, SD; McCook, SD; Miner, SD; Minnehaha, SD; Moody, SD; Sanborn, SD; Turner, SD; Union, SD; Yankton, SD
Source: National Weather Service ↗
Earthquakes — last 30 days0
✓ No earthquakes ≥ M2.5 within 250 km.
Source: USGS Earthquake Catalog ↗
Superfund sites
2 active EPA Superfund (National Priorities List) sites in SD of 4 ever listed.
Ellsworth Air Force Base
Rapid City · NPL Site · 515 km away
The state’s energy ledger
What SD’s grid runs on, its EV fleet and charging network, and where its mandate stands — from the national Energy Ledger.
Open the SD energy dossier →Snapshot generated Sep 1, 9:11 PM (showing last good reading while refreshing). All data is public and carries no personal information.