Top 10 cities in the world in terms of good air.

Top 10 cities in the world in terms of good air

IQAir is a Swiss-based air quality monitoring technology company. They publish an instantaneous or live index (AQI index) of air quality for cities around the world. The index shows how clean or polluted the air is in a particular city.

Seen today at 8:45 am, Friday, the live index covers air quality across 120 cities around the world.

The top 10 cities in the world with 'good' air quality in the index at this time are—

1. Nis, France (score 12)

2. Auckland, New Zealand (Score 13)

3. Lisbon, Portugal (score 14)

4. Rome, Italy (Score 15)

5. Helsinki, Finland (Score 16)

6. Kyoto, Japan (Score 17)

7. Sarajevo, Bosnia and Herzegovina (score 17)

8. Lyon, France (score 19)

9. Sydney, Australia (Score 21)

10. Seattle, USA (Score 22)

Dhaka, the capital of Bangladesh, scored 99 on the index at the same time. This quality of wind is considered 'moderate'.

The AQI index scores from zero to 50 for 'good' air quality. A score of 51 to 100 is considered 'moderate' or 'acceptable' air quality. A score of 101 to 150 is considered 'unhealthy for sensitive groups'. A score of 151 to 200 is considered 'unhealthy' air. A score of 201 to 300 is considered 'very unhealthy' air. And a score above 301 is considered 'risky'.