Kupang's air quality was the cleanest in Indonesia tonight. Based on the air quality index from the Ministry of Environment and Forestry (KLHK), Kupang scored 21 on Tuesday, September 12, 2023, at 8:00 PM 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 28. Manado followed in third place with an air quality index of 35.
Below is a complete list of the 10 cities with the cleanest air quality in Indonesia according to KLHK on Tuesday, September 12, 2023, at 8:00 PM WIB.
1. Kupang (East Nusa Tenggara): 21
2. Surabaya (East Java): 28
3. Manado (North Sulawesi): 35
4. Balikpapan (East Kalimantan): 39
5. Ternate (North Maluku): 40
6. Tanjung Pinang (Riau Islands): 41
7. Semarang (Central Java): 42
8. Makassar (South Sulawesi): 44
9. Kendari (Southeast Sulawesi): 46
10. Yogyakarta (Yogyakarta): 48
Based on the Minister of Environment and Forestry Regulation No. 14 of 2020 concerning the Air Pollutant Standard Index, KLHK applies the following air quality index classification:
* 0-50: Good
* 51-100: Moderate
* 101-200: Unhealthy
* 201-300: Very Unhealthy
* 300+: Hazardous
This means that on Tuesday, September 12, 2023, at 8:00 PM WIB, all of the aforementioned cities had good air quality.