NO2-Jahresmittelwerte (Passivsammler)
Kanton: Appenzell A.Rh.
| Stickstoffdioxid-Jahresmittel [µg/m3] | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Standort | T1 | T2 | T3 | T4 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
| Gais, Zwislen |
|
|
|
|
6 | 6 | 6 | 5 | 7 | 6 | 4 | 5 | - | - |
| Heiden, Werdstrasse |
|
|
|
|
- | 28 | - | - | 23 | - | - | 18 * | - | - |
| Herisau, Alpsteinstrasse |
|
|
|
|
31 | 34 | 32 | 29 | 27 | 27 | 24 | 23 | 23 | 21 |
| Herisau, Ebnet |
|
|
|
|
- | 16 | - | - | 14 | - | - | - | - | - |
| Herisau, Kasernenstrasse |
|
|
|
|
- | 28 | - | - | 24 | - | - | - | - | - |
| Herisau, St.Gallerstrasse |
|
|
|
|
- | 35 | - | - | 30 | - | - | 27 | 28 | 24 |
| Stein, Sägehüsli |
|
|
|
|
- | - | - | - | - | 8 | - | 8 | 7 | 6 |
| Teufen, Dorfbibliothek |
|
|
|
|
- | 15 | - | - | 14 | - | - | - | - | - |
| Urnäsch, Gemeindehaus |
|
|
|
|
- | 19 | - | - | 17 | - | - | 17 | - | - |