What is the difference between AQI and CAQI?

The CAQI (Common Air Quality Index) was created to provide an easy way to compare air quality across the European Union and to warn citizens about the risks associated with exceptionally high pollution levels.

The AQI (Air Quality Index) was developed by the United States to inform the public about air pollution levels.

If you want to learn more about the differences between AQI and CAQI, read our article:

https://airly.org/en/air-quality-index-caqi-and-aqi-methods-of-calculation/