Sion
| other name | Sitten |
| country |
 Switzerland
|
| canton | Valais |
| Altitude | 482 a.s.l. |
| coordinates | 46° 13.2' N 7° 19.8' E |
Air pollutants Sion
Ozone (O₃)
| ozone | |
|---|---|
| µg/m³ | |
| 8. Jun. | 82 |
| 9. Jun. | 77 |
| 10. Jun. | 107 |
| 11. Jun. | 102 |
| 12. Jun. | 104 |
| 13. Jun. | 85 |
| 14. Jun. | 92 |
data source: Nationales Beobachtungsnetz für Luftfremdstoffe (NABEL)
Particulate matter (PM₁₀)
| particulate matter | |
|---|---|
| µg/m³ | |
| 8. Jun. | 8 |
| 9. Jun. | 8 |
| 10. Jun. | 10 |
| 11. Jun. | 14 |
| 12. Jun. | 12 |
| 13. Jun. | 13 |
| 14. Jun. | 15 |
Nitrogen dioxide (NO₂)
| nitrogen dioxide | |
|---|---|
| µg/m³ | |
| 8. Jun. | 12 |
| 9. Jun. | 13 |
| 10. Jun. | 15 |
| 11. Jun. | 21 |
| 12. Jun. | 16 |
| 13. Jun. | 9 |
| 14. Jun. | 13 |