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 Waltham · updated 23 hr ago · showing last good readingAir quality
28GoodUS AQI
PM2.5 18μg/m³PM10 18μg/m³Ozone 7μg/m³NO₂ 42μg/m³
Water monitoring
No live streamgage nearby.
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 28 (Good). Observed Sep 29, 10:00 PM.
17.8 μg/m³PM2.5
18.0 μg/m³PM10
7.0 μg/m³Ozone
42.3 μg/m³NO₂
1.6 μg/m³SO₂
523.0 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 days0
✓ No earthquakes ≥ M2.5 within 250 km.
Source: USGS Earthquake Catalog ↗
Superfund sites
33 active EPA Superfund (National Priorities List) sites in MA of 41 ever listed.
Hanscom Field/Hanscom Air Force Base
Bedford · NPL Site · 11 km away
The state’s energy ledger
What MA’s grid runs on, its EV fleet and charging network, and where its mandate stands — from the national Energy Ledger.
Open the MA energy dossier →Snapshot generated Sep 30, 2:59 AM (showing last good reading while refreshing). All data is public and carries no personal information.