(1) Distribution of daily concentrations of NO2
|
Davos | 14.1 | 4.4 | 5.5 | 8.6 | 18.4 | 33.4 |
Basle | 25.4 | 10.3 | 15.8 | 23.4 | 32.8 | 42.8 |
Lugano | 38.3 | 20.0 | 25.5 | 35.4 | 48.6 | 60.0 |
(2) Distribution of the absolute differences between daily concentrations of NO2 and the average concentrations of NO2 over the two control days (that is, ±7 days
|
Full two year data
|
Davos | 6.2 | 0.5 | 1.2 | 2.8 | 7.7 | 17.1 |
Basle | 9.9 | 1.4 | 3.8 | 8.2 | 13.6 | 21.0 |
Lugano | 10.2 | 1.3 | 3.4 | 7.1 | 13.1 | 25.0 |
Summer months only (April to October)
|
Davos | 2.3 | 0.3 | 0.8 | 1.7 | 2.9 | 5.2 |
Basle | 7.1 | 1.0 | 2.7 | 5.9 | 10.3 | 15.3 |
Lugano | 6.8 | 0.9 | 2.6 | 5.4 | 9.0 | 14.2 |