Perfect World
Janesville
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 Janesville · updated 16 hr ago · showing last good reading
Air quality
41GoodUS AQI
PM2.5 5μg/m³PM10 5μg/m³Ozone 67μg/m³NO₂ 7μg/m³
Water monitoring
Rock River At Afton, Wi · 8.8 km away
1360 ft3/sStreamflow
3.86 ftGage height
Active alerts
✓ No active weather alerts
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 41 (Good). Observed Aug 31, 9:00 PM.

5.0 μg/m³PM2.5
5.2 μg/m³PM10
67.0 μg/m³Ozone
6.9 μg/m³NO₂
1.0 μg/m³SO₂
150.0 μg/m³CO

Water monitoring — nearest site

Rock River At Afton, Wi · 8.8 km away · 85 sites in range

1360 ft3/sStreamflow · Sep 1, 2:00 AM
3.86 ftGage height · Sep 1, 2:00 AM

Active weather alerts0

✓ No active National Weather Service alerts for this area.

Earthquakes — last 30 days0

✓ No earthquakes ≥ M2.5 within 250 km.

Superfund sites

37 active EPA Superfund (National Priorities List) sites in WI of 46 ever listed.

Janesville Old Landfill
Janesville · NPL Site · 2 km away
Open →
See every Superfund site in WI

The state’s energy ledger

What WI’s grid runs on, its EV fleet and charging network, and where its mandate stands — from the national Energy Ledger.

Open the WI energy dossier →

Snapshot generated Sep 1, 2:55 AM (showing last good reading while refreshing). All data is public and carries no personal information.