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 Redwood City · updated 5 hr ago · showing last good readingAir quality
49GoodUS AQI
PM2.5 9μg/m³PM10 13μg/m³Ozone 24μg/m³NO₂ 17μg/m³
Water monitoring
San Francisquito C A Stanford University Ca · 8 km away
0.07 ft3/sStreamflow
0.17 ftGage height
Active alerts
- MinorCoastal Flood Advisory
Earthquakes · 30 days
M3.7strongest within 250 km
10 km W of Boonville, 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 49 (Good). Observed Sep 30, 7:00 PM.
9.2 μg/m³PM2.5
13.1 μg/m³PM10
24.0 μg/m³Ozone
17.1 μg/m³NO₂
0.9 μg/m³SO₂
153.0 μg/m³CO
Source: Open-Meteo Air Quality ↗
Water monitoring — nearest site
San Francisquito C A Stanford University Ca · 8 km away · 68 sites in range
0.07 ft3/sStreamflow · Oct 1, 2:45 AM
0.17 ftGage height · Oct 1, 2:45 AM
Source: USGS Water Services ↗
Active weather alerts1
MinorCoastal Flood Advisoryuntil Oct 2, 12:00 AM
Coastal Flood Advisory issued September 30 at 3:46PM PDT until October 1 at 5:00PM PDT by NWS San Francisco CA
San Francisco; North Bay Interior Valleys; San Francisco Bay Shoreline; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Source: National Weather Service ↗
Earthquakes — last 30 days20
M3.0↗M2.6↗M2.6↗M2.6↗M2.6↗
8 km ESE of Cloverdale, CA
Sep 30, 9:07 PM · 156 km away
1 km SW of Anderson Springs, CA
Sep 30, 8:48 PM · 148 km away
6 km W of Yountville, CA
Sep 29, 4:06 PM · 103 km away
9 km NW of Redwood Valley, CA
Sep 27, 7:10 PM · 223 km away
26 km WSW of Westley, CA
Sep 27, 2:40 PM · 69 km away
Source: USGS Earthquake Catalog ↗
Superfund sites
99 active EPA Superfund (National Priorities List) sites in CA of 116 ever listed.
Hewlett-Packard (620-640 Page Mill Road)
Palo Alto · NPL Site · 11 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 1, 2:52 AM (showing last good reading while refreshing). All data is public and carries no personal information.