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 Costa Mesa · updated 5 hr ago · showing last good readingAir quality
61ModerateUS AQI
PM2.5 9μg/m³PM10 12μg/m³Ozone 71μg/m³NO₂ 19μg/m³
Water monitoring
No live streamgage nearby.
Active alerts
- SevereExtreme Heat Warning
Earthquakes · 30 days
M3.8strongest within 250 km
4 km SE of Piru, CA
20 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 61 (Moderate). Observed Oct 1, 9:00 PM.
9.1 μg/m³PM2.5
11.6 μg/m³PM10
71.0 μg/m³Ozone
19.1 μg/m³NO₂
1.7 μg/m³SO₂
138.0 μg/m³CO
Source: Open-Meteo Air Quality ↗
Active weather alerts1
SevereExtreme Heat Warninguntil Oct 9, 3:00 AM
Extreme Heat Warning issued October 1 at 8:59PM PDT until October 8 at 8:00PM PDT by NWS San Diego CA
Orange County Coastal
Source: National Weather Service ↗
Earthquakes — last 30 days20
M3.1↗M3.8↗M3.6↗M2.6↗M3.0↗
20 km ESE of Anza, CA
Oct 1, 12:01 AM · 136 km away
4 km SE of Piru, CA
Sep 30, 3:00 AM · 114 km away
7 km WSW of Hermosa Beach, CA
Sep 27, 3:40 PM · 56 km away
17 km WSW of Johannesburg, CA
Sep 24, 3:11 AM · 186 km away
17 km WSW of Johannesburg, CA
Sep 23, 8:44 PM · 186 km away
Source: USGS Earthquake Catalog ↗
Superfund sites
99 active EPA Superfund (National Priorities List) sites in CA of 116 ever listed.
El Toro Marine Corps Air Station
El Toro · NPL Site · 19 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 Oct 2, 4:37 AM (showing last good reading while refreshing). All data is public and carries no personal information.