Czechia Ozone (O3) Level
See Air Quality ofCzechia
MapCzechia
Download 2024 Annual Data
World Air Quality Report
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
Czechia
Analyze the real-time most air polluted cities in the country.
Standard Value
1.
Znojmo, Jihomoravsky Kraj
Good
1xbelow Standard
2.
Olomouc, Olomoucky Kraj
Good
2xbelow Standard
3.
Pelhrimov, Vysocina
Good
2xbelow Standard
4.
Ostrava, Moravskoslezsky Kraj
Good
2xbelow Standard
5.
Pardubice, Pardubicky Kraj
Good
2xbelow Standard
6.
Zlin, Zlinsky Kraj
Good
2xbelow Standard
7.
Frydlant, Liberecky Kraj
Good
2xbelow Standard
8.
Kladno, Stredocesky Kraj
Good
2xbelow Standard
9.
Prague, Prague
Good
2xbelow Standard
10.
Prague, Hlavni mesto Praha
Good
2xbelow Standard
Last Updated: 16 Mar 2026, 03:05 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
