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 Merced · updated 4 hr ago · showing last good reading

Air quality

84ModerateUS AQI

PM2.5 57μg/m³PM10 62μg/m³Ozone 83μg/m³NO₂ 14μg/m³

Water monitoring

No live streamgage nearby.

Active alerts

ModerateHeat Advisory

Earthquakes · 30 days

M3.3strongest within 250 km

3 km ESE of Larkfield-Wikiup, CA

16 quakes ≥ M2.5

Superfund sites

99active in CA

Nearest: Castle Air Force Base (6 Areas) · 10 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 84 (Moderate). Observed Oct 1, 10:00 AM.

56.7 μg/m³PM2.5

61.7 μg/m³PM10

83.0 μg/m³Ozone

14.4 μg/m³NO₂

2.2 μg/m³SO₂

319.0 μg/m³CO

Source: Open-Meteo Air Quality ↗

Active weather alerts1

ModerateHeat Advisoryuntil Oct 5, 5:00 AM

Heat Advisory issued October 1 at 9:30AM PDT until October 4 at 10:00PM PDT by NWS Hanford CA

West Side Mountains north of 198; Los Banos - Dos Palos; Merced - Madera - Mendota; Planada - Le Grand - Snelling; Coalinga - Avenal; West Side of Fresno and Kings Counties; Caruthers - San Joaquin - Selma; Fresno-Clovis; West Side Mountains South of 198; Buttonwillow - Lost Hills - I5; Delano-Wasco-Shafter; Hanford - Corcoran - Lemoore; Visalia - Porterville - Reedley; Buena Vista; Bakersfield; Southeast San Joaquin Valley; South End San Joaquin Valley; Mariposa Madera Foothills; Mariposa-Madera Lower Sierra; Fresno-Tulare Foothills; Fresno-Tulare Lower Sierra; South End Sierra Foothills; South End of the Lower Sierra

Source: National Weather Service ↗