◉ Perfect World
Gaithersburg ▾
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 Gaithersburg · updated 5 hr ago · showing last good reading
Air quality
50GoodUS AQI
PM2.5 8μg/m³PM10 8μg/m³Ozone 125μg/m³NO₂ 4μg/m³
Water monitoring
Little Seneca Creek Tributary Near Germantown, Md · 8.9 km away
0.65 ft3/sStreamflow
0.37 ftGage height
Active alerts
  • UnknownTest Message
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 50 (Good). Observed Oct 1, 1:00 PM.

8.2 μg/m³PM2.5
8.3 μg/m³PM10
125.0 μg/m³Ozone
4.2 μg/m³NO₂
1.9 μg/m³SO₂
171.0 μg/m³CO

Water monitoring — nearest site

Little Seneca Creek Tributary Near Germantown, Md · 8.9 km away · 124 sites in range

0.65 ft3/sStreamflow · Oct 1, 4:55 PM
0.37 ftGage height · Oct 1, 4:55 PM

Active weather alerts1

UnknownTest Messageuntil Oct 1, 5:53 PM
Montgomery

Earthquakes — last 30 days0

✓ No earthquakes ≥ M2.5 within 250 km.

Superfund sites

22 active EPA Superfund (National Priorities List) sites in MD of 26 ever listed.

Beltsville Agricultural Research Center (USDA)
Beltsville · NPL Site · 30 km away
Open →
See every Superfund site in MD →

The state’s energy ledger

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

Open the MD energy dossier →

Snapshot generated Oct 1, 5:50 PM (showing last good reading while refreshing). All data is public and carries no personal information.