Air Quality Indicator ozone (O3)
for Stockholm County urban area.

Air quality indicator ozone the latest 3 days
EMMA scale:
Arrow_top EU threshold for warning
Severe Arrow_bot
Arrow_top EU threshold for information
Bad Arrow_bot
Arrow_top EU health protection target
Very poor Arrow_bot for 8 hour mean concentrations
Air quality indicator ozone the latest 3 days
The indicator is based on hourly urban background monitoring and is automatically updated on the www every hour. The hourly values are raw data.

The EMMA scale is proposed in the EC project EMMA as a common scale for air quality indicators. The limit between good and average air quality represents annual mean concentrations in Stockholm urban area.

Stockholm Air Quality Indicators, last hour:
Map regionNO2O3COPM 10
 City centre: - -
 Urban area: -
 Rural area: --

Klick on the rectangles above to see latest three days of data for each air quality indicator