Netatmo Weather Station User Manual page 15

Understanding the Citeair indices
Those indices have 5 levels using a scale from 0 (very low) to > 100 (very high) and are a relative measure of
the amount of air pollution. They are based on 3 pollutants of major concern in Europe: particles (PM10),
nitrogen-dioxyde (NO2), and ozone (O3) and will be able to take into account to 3 additional pollutants (CO,
PM2.5 and SO2) where data are also available.
Two indices have been developed to inform the public on two types of pollution exposure:
- Background, representing the general situation of the given agglomeration (based on urban background
monitoring sites),
- Roadside, being representative of city streets with a lot of traffic, (based on roadside monitoring stations).
Source and Acknowledgement
Those indices have been developed under the framework of the Citeair project (Common information to
European air) and co-funded by the INTERREG IIIC and INTERREG IVC programs. Those indices are
computed based on data provided by partner air quality surveillance organisms and are available on the
website Air Quality Now. The list of partner organisms is available
Air Quality (Europe - Citeair/MACC)
Air Quality (Europe - Citeair/MACC)
Outdoor air quality: pollution index
The European Citeair index for air pollution (Common information to European Air) is displayed on the outdoor
dashboard. It is computed from forecast results provided by the European pollution modelisation MACC.
Complementary information
By touching on the icon button in the air quality gauge, you can display complementary information about the
main pollutant.
CiteAir index color code
This color code scale makes it easier to understand air pollution at a glance.
here.