Kupang's air quality was the cleanest in Indonesia this evening. Based on the Air Quality Index (AQI) from the Ministry of Environment and Forestry (KLHK), Kupang scored 25 on Friday, September 22, 2023, at 7:00 PM WIB.
At that time, Kupang's air quality was categorized as "good," meaning pollutant levels in the air were very minimal. Surabaya was ranked second with an AQI of 26, followed by Dumai in third place with an AQI of 27.
Below is a complete list of the 10 cities with the cleanest air quality in Indonesia according to KLHK on Friday, September 22, 2023, at 7:00 PM WIB:
1. Kupang (East Nusa Tenggara): 25
2. Surabaya (East Java): 26
3. Dumai (Riau): 27
4. Gorontalo (Gorontalo): 29
5. Mamuju (West Sulawesi): 30
6. Siak (Riau): 31
7. Balikpapan (East Kalimantan): 32
8. Malang (East Java): 33
9. Denpasar (Bali): 36
10. Bandar Lampung (Lampung): 40
According to the Minister of Environment and Forestry Regulation No. 14 of 2020 concerning the Air Pollutant Standard Index, KLHK classifies the air quality index as follows:
* 0-50: Good
* 51-100: Moderate
* 101-200: Unhealthy
* 201-300: Very Unhealthy
* 300+: Hazardous
This means that on Friday, September 22, 2023, at 7:00 PM WIB, all of these cities had good air quality.