Barito Selatan in South Kalimantan had the cleanest air in Indonesia this afternoon. Based on the air quality index from the Ministry of Environment and Forestry (KLHK), Barito Selatan scored 11 on Wednesday, September 20, 2023, at 3:00 PM WIB.
At that time, Barito Selatan's air quality was categorized as "good," meaning pollutant levels were very minimal. Kupang was second with an air quality index of 21, followed by Surabaya in third place with an index of 27.
Below is a complete list of the 10 cities with the cleanest air in Indonesia according to the KLHK on Wednesday, September 20, 2023, at 3:00 PM WIB.
1. Barito Selatan (Central Kalimantan): 11
2. Kupang (East Nusa Tenggara): 21
3. Surabaya (East Java): 27
4. Pontianak (West Kalimantan): 28
5. Tanjung Pinang (Riau Islands): 29
6. Mamuju (West Sulawesi): 30
7. Siak (Riau): 33
8. Malang (East Java): 37
9. Balikpapan (East Kalimantan): 40
10. Bulungan (North Kalimantan): 41
According to the Minister of Environment and Forestry Regulation No. 14 of 2020 concerning the Air Pollutant Standard Index, the KLHK classifies the air quality index as follows:
* 0-50: Good
* 51-100: Moderate
* 101-200: Unhealthy
* 201-300: Very Unhealthy
* 300+: Hazardous
Therefore, on Wednesday, September 20, 2023, at 3:00 PM WIB, all of these cities had good air quality.