10 Regions with the Least Air Pollution in Indonesia, Morowali Regency Ranks 1st on Friday Morning

Morowali Regency''s air quality this morning is the cleanest in Indonesia. Based on the air quality index version of the Ministry of Environment and Forestry (KLHK), Morowali Regency has a score of 11 on Friday (29/8/2025) at 06.00 AM WIB.

At that time, Morowali Regency''s air quality was categorized as good, meaning the pollutant levels in Morowali Regency''s air were very minimal. Furthermore, Lumajang Regency ranked second with an air quality index of 13. Next, Pelalawan Regency was in third place with an air quality index of 16.

Here is the complete list of the 10 cities with the cleanest air quality in Indonesia according to KLHK on Friday, August 29, 2025, at 06.00 AM WIB.

1. Morowali Regency (Central Sulawesi): 11
2. Lumajang Regency (East Java): 13
3. Pelalawan Regency (Riau): 16
4. Balikpapan (East Kalimantan): 17
5. North Penajam Paser Regency (East Kalimantan): 18
6. West Manggarai Regency (East Nusa Tenggara): 19
7. Bontang (East Kalimantan): 20
8. Palu (Central Sulawesi): 22
9. Probolinggo (East Java): 23
10. Jayapura (Papua): 24

(Read: Jakarta''s Air Quality is Poor, Losing to Other ASEAN Capitals)

Based on KLHK Regulation No. 14 of 2020 concerning the Air Pollutant Standard Index, KLHK implements 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 Friday (29/8/2025) at 06.00 AM WIB, all of these cities had good air quality.

(Read: Jatibening Included in the List of 15 Regions with the Best Air Quality in Indonesia as of September 2023)