Air quality in Charleston, West Virginia, United States of America today
Mr. Duck’s Air Quality Score
Good air today for Charleston, West Virginia, United States of America
This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.
Air quality today
The air quality in Charleston, West Virginia today is classified as Good. The primary pollutant measured is PM2.5 (fine particles). OpenAQ data show a PM2.5 concentration of 8.467 µg/m³ based on seven valid measurements.
Overall conditions meet the Good category criteria with no additional pollutants reported. This page is informational; for health guidance, use official sources such as EPA AirNow or WHO.
Latest sensor values
PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).
What the data includes
The Charleston air‑quality dataset contains measurements for two pollutants, ozone (O3) and fine particulate matter (PM2.5). Both are reported from a single monitoring location in the city, so there is one row of data for each pollutant. The most recent readings were recorded on 2026‑02‑10 at 23:00 UTC, and the system flags them as having been updated within the past seven days, indicating that the information is relatively fresh.
For ozone, the only value available is 0.023 ppm, which also represents the minimum, median and maximum observed across the dataset. This uniform figure suggests no variation in O3 levels was captured during the reporting period. The PM2.5 data show a single reading of 13.0 µg/m³, again identical for the minimum, median and maximum, meaning the dataset does not reveal any spread or change over time for this pollutant either.
Because there is just one monitoring site contributing both O3 and PM2.5 rows, coverage across the city is limited to that specific point. The lack of multiple stations means spatial differences in air quality cannot be assessed from these data alone. Likewise, with only a single timestamp for each pollutant, temporal trends or fluctuations are not observable; the dataset provides a snapshot rather than a continuous record. Users should keep in mind that conditions elsewhere in Charleston may differ from what is shown here, and future updates could add more stations or timestamps to broaden the picture.
Learn more about sources and filtering: About the data.
Trusted references: WHO (Air pollution) · US EPA AirNow · European Environment Agency (Air)
Latest sensor values (bars)
PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).
Data notes
The data shown reflects seven valid measurements and was Updated today (last refreshed at 2026‑02‑11T01:00:00+00:00). These readings represent a snapshot of ambient conditions across Charleston, West Virginia, but air quality can differ by specific location and time within the city. Consequently, values may not capture short‑term spikes or micro‑area variations, so consider this information as an overview rather than a precise real‑time report.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| CHARLESTON | o3 | 0.023 | ppm | 2026-02-10 23:00 UTC |
| CHARLESTON | pm25 | 13.0 | µg/m³ | 2026-02-10 23:00 UTC |