Kupang's air quality was the cleanest in Indonesia this morning. According to the air quality index from the Ministry of Environment and Forestry (KLHK), Kupang scored 23 on Friday, September 22, 2023, at 6:00 AM WIB.
At that time, Kupang's air quality was categorized as "good," meaning the level of pollutants in the air was very minimal. Surabaya was ranked second with an air quality index of 25. Gorontalo followed in third place with an index of 28.
Below is a complete list of the 10 cities with the cleanest air quality in Indonesia according to the KLHK on Friday, September 22, 2023, at 6:00 AM WIB.
1. Kupang (East Nusa Tenggara): 23
2. Surabaya (East Java): 25
3. Gorontalo (Gorontalo): 28
4. Mamuju (West Sulawesi): 30
5. Siak (Riau): 31
6. Dumai (Riau): 33
7. Denpasar (Bali): 34
8. West Kotawaringin (Central Kalimantan): 36
9. Malang (East Java): 37
10. Ternate (North Maluku): 40
Based on the Minister of Environment and Forestry Regulation No. 14 of 2020 concerning the Air Pollutant Standard Index, the KLHK applies the following air quality index classification:
* 0-50: Good
* 51-100: Moderate
* 101-200: Unhealthy
* 201-300: Very Unhealthy
* 300+: Hazardous
Therefore, on Friday, September 22, 2023, at 6:00 AM WIB, all of these cities had good air quality.