Station Fribourg-Quartier-Bourg (FR) : 1989 - 2015
  Jahr   NO2 JM   NO2 95%  PM10 JM  PM10 TM  O3 1h    O3 98%   SO2 JM   CO TM    
          µg/m³    µg/m³    µg/m³    µg/m³    µg/m³    µg/m³    µg/m³    mg/m³
  1989    56.5*    -9999    -9999    -9999    -9999    -9999    21.6*     4.3*
  1990    -9999    -9999    -9999    -9999    -9999    -9999    -9999    -9999
  1991     53.2     95.1    -9999    -9999    -9999    -9999     15.4      3.5
  1992    -9999    -9999    -9999    -9999    -9999    -9999    -9999    -9999
  1993    50.9*    88.5*    -9999    -9999    -9999    -9999    10.3*     3.1*
  1994    -9999    -9999    -9999    -9999    -9999    -9999    -9999    -9999
  1995     45.5     79.8    -9999    -9999    -9999    -9999      8.2      3.0
  1996    -9999    -9999    -9999    -9999    -9999    -9999    -9999    -9999
  1997     42.9     75.7    -9999    -9999    -9999    -9999      6.1     4.3*
  1998    -9999    -9999    -9999    -9999    -9999    -9999    -9999    -9999
  1999     38.8     67.4     28.0       79    -9999    -9999    -9999      3.5
  2000    -9999    -9999    -9999    -9999    -9999    -9999    -9999    -9999
  2001     37.2     63.7     25.0       61      140      125    -9999     3.1*
  2002    -9999    -9999    -9999    -9999    -9999    -9999    -9999    -9999
  2003     39.3     72.0     31.3      134      177      152    -9999      3.0
  2004    -9999    -9999    -9999    -9999    -9999    -9999    -9999    -9999
  2005     37.6     70.3     27.0       80      146      116    -9999      2.8
  2006    -9999    -9999    -9999    -9999    -9999    -9999    -9999    -9999
  2007     34.9     64.6     23.0       81      132      111    -9999      2.3
  2008    -9999    -9999    -9999    -9999    -9999    -9999    -9999    -9999
  2009    35.8*    67.3*     24.0       64     135*      106    -9999    -9999
  2010    -9999    -9999    -9999    -9999    -9999    -9999    -9999    -9999
  2011     31.8     58.1     25.1       70      129      118    -9999    -9999
  2012    -9999    -9999    -9999    -9999    -9999    -9999    -9999    -9999
  2013     31.4     59.2     22.9       77      146      131    -9999    -9999
  2014    -9999    -9999    -9999    -9999    -9999    -9999    -9999    -9999
  2015     20.6     42.0     15.9       49      146      138    -9999    -9999
Legende:
Jahr / année
NO2 JM   :  NO2, Jahresmittel / moyennes annuelles
NO2 95%  :  NO2, 95%-Werte der 1/2h-Mittel / valeurs 95% des moy. semi-horaires
PM10 JM  :  PM10, Jahresmittel / moyennes annuelles
PM10 TM  :  PM10, maximale Tagesmittel / moyennes journalières maximales
O3 1h    :  O3, maximale Stundenmittel / moyennes horaires maximales
O3 98%   :  O3, 98%-Werte der 1/2h-Mittel / valeurs 98% des moy. semi-horaires
SO2 JM   :  SO2, Jahresmittel / moyennes annuelles
CO TM    :  CO, maximale Tagesmittel / moyennes journalières maximales
-9999 : fehlender oder ungültiger Wert / donnée manquante ou non valable
* : unvollständige Messreihe / série incomplète