🌫️ WV air is β€” right now (β€” Β΅g/mΒ³ PM2.5) what this means
🚧 Beta β€” under construction. Readings are provisional and shown for community awareness, not regulatory use.
See something? Add it to the map. Something broken? Tell us.
⬇ Download CSV

Sensor map

Air right now β€” each dot is colored by that sensor's most recent PM2.5 reading (Β΅g/mΒ³), not an average
● <12 good ● <35 moderate ● <55 sensitive groups ● <150 unhealthy ● higher Β· β—Ž ringed = EPA reference monitor Β· click a dot to chart its history
Context layers (switch on below) use their own colors: βš–οΈ Compliance ● significant violation ● in violation ● ok Β· πŸ›’οΈ O&G permits ● requested ● approved ● built Β· ⛏️ Mining ● new ● active ● idle

How's your area doing? community sensors grouped by region Β· worst air first

AreaNowSensorsTrendHighest sensor
Loading…

Time series (hourly median) β€” red Γ— = events, dashed = trend (single sensor)

Click a point (or event Γ—) for detail.

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

Day vs. overnight compare

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

Health guide β€” what the levels mean (for the selected metric)

New to this? Learn what these levels mean for your health β†’

πŸ”Ž Explore the data β€” make connections & hold sources accountable

These tools tie your air readings to what's around them β€” nearby pollution sources, abandoned gas wells, and how our community sensors stack up against EPA's regulatory monitors. This is context and a place to look, not proof any one source caused a reading.

Around a pollution source β€” nearest sensors by distance & direction

rings: 1 & 3 mi
Near-field <1 mi = clearest signal for ground-level/fugitive emissions Β· vicinity 1–3 mi Β· tall stacks (power plants) can peak 1–10 mi downwind, so wind direction matters as much as distance (how we handle this).
SensorTypeDistanceDirectionDownwindZone
Pick a pollution source above to see the sensors around it.

πŸ›’οΈ Abandoned wells near our VOC sensors

Abandoned & orphaned gas wells can vent natural gas and hydrogen sulfide (H2S). Our community sensors' VOC reading is a relative gas-response index (it responds to hydrocarbons and H2S, but it is not an H2S monitor). This lines up each sensor's VOC with the abandoned wells around it β€” context and a place to look, not proof any well caused a reading. Sorted by nearby wells.

SensorAreaVOC (relative) Wells ≀2 km (orphans)Wells ≀5 km
Loading…

πŸ•³οΈ The orphan-well plugging backlog

Most orphan wells (county backlog)

Validation β€” community sensors vs. regulatory reference monitors

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