West Virginia community air quality · map colored by latest PM2.5 · times in US Eastern
🚧 Beta — under construction. Readings are provisional and shown for community awareness, not regulatory use.
Sensors
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Sensor map

PM2.5 µg/m³: ● <12 ● <35 ● <55 ● <150 ● higher · click a marker to toggle

Time series (hourly median) — red × = events, dashed = trend (single sensor)

Click a point (or event ×) for detail.

Time-of-day profile (median by local hour, ET)

Day vs. overnight compare

SensorDay (9-17)Night (0-5)Night/Day

Validation — community sensors vs. regulatory reference monitors

Community sensorNearest reference monitor DistanceDaysCorrelation (r)Bias vs. reference

Health guide — what the levels mean

About AirWV

Empower WV — community eco monitoring is a community air-quality initiative for West Virginia, powered by the open-source AirWV project. It collects readings from community PurpleAir sensors, stores long-term history, and surfaces trends, anomalies, and alerts. It grew out of the Kanawha Valley Air Quality Monitoring project (Create WV, WVCAG, and partners).

Data shown is from community sensors and is provided as-is for awareness, not regulatory use. Source & docs: github.com/createwv/airwv.