Grand Est Ozone (O₃) Level
France
See Air Quality ofGrand Est
MapGrand Est
Do you know that Ozone's total mass is 3 billion metric tons in the atmosphere? It looks like a lot but has only 0.00006% of the atmosphere. Besides, Ozone's peak concentration is 32 kilometres above the Earth's surface.
Most Polluted Cities 2026
France
Analyze the real-time most air polluted cities in the country.
Standard Value
1.
Paris, Ile De France
Moderate
1xabove Standard
2.
Saint Ouen, Ile De France
Moderate
1xabove Standard
3.
Nogent Sur Oise, Hauts De France
Moderate
1xabove Standard
4.
Aurillac, Auvergne Rhone Alpes
Moderate
1xabove Standard
5.
Dreux, Centre Val De Loire
Moderate
1xabove Standard
6.
Clermont Ferrand, Auvergne Rhone Alpes
Moderate
1xabove Standard
7.
Poitiers, Nouvelle Aquitaine
Moderate
1xabove Standard
8.
Bourgoin Jallieu, Auvergne Rhone Alpes
Good
1xbelow Standard
9.
Nevers, Bourgogne Franche Comte
Good
1xbelow Standard
10.
Oyonnax, Auvergne Rhone Alpes
Good
1xbelow Standard
Last Updated: 29 Jul 2026, 10:26 PM
AQI City RankingsUncovering the Sources of Ozone (O₃): Where Does It Come From?
Refineries
Industrial processes emit substances.
Power plants
Emissions from burning fossil fuels.
Paints evaporations
Vocs from paints react with sunlight.
Transportation
Diesel operated vehicles reacts and form ozone.Short-Term O₃ Exposure Impacts
Chest pain
Discomfort or pain in the chest due to respiratory stress.
Breathing shortness
Difficulty in breathing or feeling of breathlessness.
Respiratory irritation
Inflammation and irritation of the respiratory tract.
Wheezing and coughing
Whistling sound and persistent cough.
Trigger asthma attacks
Aggravation of asthma symptoms.Why you should care about Ozone (O₃)?
Know More About O₃ Sensor
