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 Diamond Bar · updated 4 hr ago · showing last good readingAir quality
74ModerateUS AQI
PM2.5 24μg/m³PM10 26μg/m³Ozone 35μg/m³NO₂ 39μg/m³
Water monitoring
No live streamgage nearby.
Active alerts
✓ No active weather alerts
Earthquakes · 30 days
M4.0strongest within 250 km
10 km ENE of Coso Junction, CA
19 quakes ≥ M2.5
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 74 (Moderate). Observed Sep 2, 8:00 AM.
23.9 μg/m³PM2.5
26.0 μg/m³PM10
35.0 μg/m³Ozone
39.1 μg/m³NO₂
4.6 μg/m³SO₂
154.0 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 days19
M3.2↗M2.9↗M3.1↗M2.7↗M3.5↗
6 km SE of Ontario, CA
Sep 2, 12:37 PM · 20 km away
22 km SSW of La Quinta, CA
Aug 31, 11:04 AM · 144 km away
12 km WSW of Salton City, CA
Aug 25, 8:17 PM · 184 km away
10 km ENE of Coso Junction, CA
Aug 24, 7:51 AM · 227 km away
10 km ENE of Coso Junction, CA
Aug 23, 9:16 AM · 227 km away
Source: USGS Earthquake Catalog ↗
Superfund sites
99 active EPA Superfund (National Priorities List) sites in CA of 116 ever listed.
San Gabriel Valley (Area 2)
Baldwin Park Area · NPL Site · 13 km away
The state’s energy ledger
What CA’s grid runs on, its EV fleet and charging network, and where its mandate stands — from the national Energy Ledger.
Open the CA energy dossier →Snapshot generated Sep 2, 3:57 PM (showing last good reading while refreshing). All data is public and carries no personal information.