Indice européen de la qualité de l'air: sous-indice O3
(sur la base des concentrations de polluants en µg/m3)

|{{https://arcgis-portal.public.lu/server/rest/services/GR/Air_quality_index_legend/MapServer/0/images/710759c78e05e3b24eadb3cc2dbb6455?.png?nolink}}|bon|
|{{https://arcgis-portal.public.lu/server/rest/services/GR/Air_quality_index_legend/MapServer/0/images/20ea7a81e7c73830c0d5f390aa909823?.png?nolink}}|moyen|
|{{https://arcgis-portal.public.lu/server/rest/services/GR/Air_quality_index_legend/MapServer/0/images/d6a28dce2568cb1560e20be05cf3ef09?.png?nolink}}|dégradé|
|{{https://arcgis-portal.public.lu/server/rest/services/GR/Air_quality_index_legend/MapServer/0/images/25375f9ff01c56fbce1f8fe31744cbac?.png?nolink}}|mauvais|
|{{https://arcgis-portal.public.lu/server/rest/services/GR/Air_quality_index_legend/MapServer/0/images/337e300ead0d34e8012d80ea0d184bf7?.png?nolink}}|très mauvais|
|{{https://arcgis-portal.public.lu/server/rest/services/GR/Air_quality_index_legend/MapServer/0/images/f5bc4ef72af757c6fbc91b948aab90fc?.png?nolink}}|extrêmement mauvais|
|{{https://arcgis-portal.public.lu/server/rest/services/GR/Air_quality_index_legend/MapServer/0/images/3c364230b095d5461e7ca42dd1b25705?.png?nolink}}|données non disponibles|