Air quality in Leiria today
Portugal · Updated Friday 07:00 (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 | 14 µg/m³ | Fair |
| PM10 | 19 µg/m³ | Good |
| NO₂ | 7 µg/m³ | Good |
| O₃ | 62 µg/m³ | Fair |
The pollutant that matters most in Leiria right now is PM2.5.
Forecast: next 24 hours
The air in Leiria should stay good to fair for the next 24 hours. The cleanest hour is expected around Fri 23:00.
| Time | AQI | Level | PM2.5 |
|---|---|---|---|
| Fri 08:00 | 38 | Fair | 14 |
| Fri 11:00 | 31 | Fair | 10 |
| Fri 14:00 | 37 | Fair | 6 |
| Fri 17:00 | 37 | Fair | 6 |
| Fri 20:00 | 33 | Fair | 6 |
| Fri 23:00 | 24 | Fair | 7 |
| Sat 02:00 | 25 | Fair | 7 |
| Sat 05:00 | 25 | Fair | 7 |
The last 30 days
Over the last 30 days the average daily AQI in Leiria was 31, with 0 day(s) rated poor or worse. The cleanest day was 7 Sept, the most polluted 3 Sept.
Questions and answers
- Is the air in Leiria good today?
- Right now the European Air Quality Index in Leiria is 39, which is fair. Fine for almost everyone.
- What pollutes the air in Leiria?
- At the moment PM2.5 contributes most to the air quality index in Leiria. The index takes the worst of fine particles (PM2.5), coarser particles (PM10), nitrogen dioxide, ozone and sulphur dioxide.
- When will the air in Leiria be cleanest?
- The air in Leiria should stay good to fair for the next 24 hours. The cleanest hour is expected around Fri 23:00.
- 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.