Air quality in Washington today
United States · Updated Thursday 20:00 (local time) · Model data from the Copernicus Atmosphere Monitoring Service
Fair European AQI
Fine for almost everyone.
Pollutants right now
| Pollutant | Value | Level |
|---|---|---|
| PM2.5 | 13 µg/m³ | Fair |
| PM10 | 15 µg/m³ | Good |
| NO₂ | 21 µg/m³ | Good |
| O₃ | 53 µg/m³ | Fair |
The pollutant that matters most in Washington right now is PM2.5.
Forecast: next 24 hours
The air in Washington should stay good to fair for the next 24 hours. The cleanest hour is expected around Fri 06:00.
| Time | AQI | Level | PM2.5 |
|---|---|---|---|
| Thu 21:00 | 38 | Fair | 13 |
| Fri 00:00 | 37 | Fair | 14 |
| Fri 03:00 | 29 | Fair | 10 |
| Fri 06:00 | 20 | Good | 5 |
| Fri 09:00 | 21 | Fair | 5 |
| Fri 12:00 | 29 | Fair | 4 |
| Fri 15:00 | 40 | Fair | 4 |
| Fri 18:00 | 33 | Fair | 5 |
The last 30 days
Over the last 30 days the average daily AQI in Washington was 41, with 0 day(s) rated poor or worse. The cleanest day was 22 Sept, the most polluted 31 Aug.
Questions and answers
- Is the air in Washington good today?
- Right now the European Air Quality Index in Washington is 35, which is fair. Fine for almost everyone.
- What pollutes the air in Washington?
- At the moment PM2.5 contributes most to the air quality index in Washington. The index takes the worst of fine particles (PM2.5), coarser particles (PM10), nitrogen dioxide, ozone and sulphur dioxide.
- When will the air in Washington be cleanest?
- The air in Washington should stay good to fair for the next 24 hours. The cleanest hour is expected around Fri 06:00.
- Where does this data come from?
- Wheezair shows model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), served by Open-Meteo: about 11 km resolution in Europe and 40 km elsewhere, updated daily. They are not station measurements, so a busy street can be worse than its city's value.