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 Brea · updated 3 hr ago · showing last good reading

Air quality

81ModerateUS AQI

PM2.5 24μg/m³PM10 29μg/m³Ozone 100μg/m³NO₂ 36μg/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

Superfund sites

99active in CA

Nearest: McColl · 7 km →

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 81 (Moderate). Observed Oct 1, 12:00 PM.

23.9 μg/m³PM2.5

28.6 μg/m³PM10

100.0 μg/m³Ozone

36.3 μg/m³NO₂

6.7 μg/m³SO₂

206.0 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 12:29AM PDT until October 8 at 8:00PM PDT by NWS San Diego CA

Orange County Inland

Source: National Weather Service ↗

Earthquakes — last 30 days20

20 km ESE of Anza, CA

Oct 1, 12:01 AM · 141 km away

4 km SE of Piru, CA

Sep 30, 3:00 AM · 95 km away

7 km WSW of Hermosa Beach, CA

Sep 27, 3:40 PM · 53 km away

17 km WSW of Johannesburg, CA

Sep 24, 3:11 AM · 155 km away

17 km WSW of Johannesburg, CA

Sep 23, 8:44 PM · 155 km away

Source: USGS Earthquake Catalog ↗

Superfund sites

99 active EPA Superfund (National Priorities List) sites in CA of 116 ever listed.

Fullerton · NPL Site · 7 km away

See every Superfund site in CA →

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 1, 7:00 PM (showing last good reading while refreshing). All data is public and carries no personal information.