Air Quality
| PM2.5 | PM10 | Last update |
|---|---|---|
Sources
European Union: CAQI Air quality index
| Qualitative name | Hourly concentration (μg/m3) | |
|---|---|---|
| PM2.5 | PM10 | |
| Very low | 0–15 | 0–25 |
| Low | 15–30 | 25–50 |
| Medium | 30–55 | 50–90 |
| High | 55–110 | 90–180 |
| Very high | >110 | >180 |
WHO Air quality guideline values for PM
| Timerange | Safety levels (μg/m3) | |
|---|---|---|
| PM2.5 | PM10 | |
| Annual mean | <10 | <20 |
| 24-hour mean | <25 | <50 |