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 Somerville · updated 10 hr ago · showing last good readingAir quality
44GoodUS AQI
PM2.5 8μg/m³PM10 8μg/m³Ozone 41μg/m³NO₂ 19μg/m³
Water monitoring
Mystic R Ds Of Amelia Earhart Dam, Sommerville, Ma · 2.1 km away
107.60 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 44 (Good). Observed Aug 14, 11:00 PM.
8.1 μg/m³PM2.5
8.2 μg/m³PM10
41.0 μg/m³Ozone
19.2 μg/m³NO₂
0.9 μg/m³SO₂
157.0 μg/m³CO
Source: Open-Meteo Air Quality ↗
Water monitoring — nearest site
Mystic R Ds Of Amelia Earhart Dam, Sommerville, Ma · 2.1 km away · 101 sites in range
107.60 ftGage height · Aug 15, 2:45 AM
Source: USGS Water Services ↗
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.
Wells G&H
Woburn · NPL Site · 12 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 Aug 15, 3:24 AM (showing last good reading while refreshing). All data is public and carries no personal information.