EU. Air. Annexes II, VII, XI, XII, XIII, XIV of 2008/50 EC

The list contains the Limit, Critical, Target and Long-term Values on ambient air for protection of human health and vegetation. It also contains the Alert, Information and Upper and Lower Assessment thresholds for sulphur dioxide, nitrogen dioxide, benzene, carbon monoxide, lead, PM2.5, PM10 and ozone.

Nitrogen monoxide

EC / List no: 233-271-0 CAS no: 10102-43-9
Nitrogen monoxide
Critical Level
30 ug/m3
Upper assessment threshold
24 ug/m3
Lower assessment threshold
19.5 ug/m3
Tolerance margin (Limit Val)
0 %
Averaging Period
1 year
XIII,II (Section A2)
Expressed As
As NOx
Protection of vegetation
01 Without prejudice to Annex I, the criteria for 'Required proportion of valid data' shall be used for checking validity when aggregating data and calculating statistical parameters

09 'Year' in Averaging period referes to 'calendar year'

Categories Display