Live
Osaka Ozone (O3) Level
Japan
See Air Quality ofOsaka
MapOsaka
Good
050
Moderate
100
Poor
168
Unhealthy
208
Severe
748
Hazardous
1250+
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
Japan
Analyze the real-time most air polluted cities in the country.
Most Polluted Cities Live Ranking 2026
World's Most PollutedCity Rankings (2025)
World's Most PollutedCountry Rankings(2025)
RankCityO3O3 StatusFollow
Standard Value
1.
Imaricho Ko, Saga
Good
2xbelow Standard
2.
Kadoma, Osaka
Good
2xbelow Standard
3.
Oita, Oita
Good
2xbelow Standard
4.
Shimabara, Nagasaki
Good
2xbelow Standard
5.
Obu, Aichi
Good
2xbelow Standard
6.
Beppu, Oita
Good
2xbelow Standard
7.
Higashi Osaka, Osaka
Good
2xbelow Standard
8.
Tokoname, Aichi
Good
2xbelow Standard
9.
Yao, Nara
Good
2xbelow Standard
10.
Osaka, Osaka
Good
2xbelow Standard
Last Updated: 10 Mar 2026, 09:20 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
