10 Least Air Polluted Regions in Indonesia, West Kutai Regency Ranks 1st on Saturday Morning

West Kutai Regency has the cleanest air quality in Indonesia this morning. Based on the air quality index version of the Ministry of Environment and Forestry (KLHK), West Kutai Regency scored 6 on Saturday (1/31/2026) at 07:00 AM WIB.

At that time, the air quality in West Kutai Regency was classified as good, meaning the pollutant levels in the air were very minimal. Subsequently, South Lampung Regency ranked second with an air quality index of 10. Next, Malang was in third place with an air quality index of 18.

Here is the complete list of the 10 cities with the cleanest air quality in Indonesia according to KLHK on Saturday, January 31, 2026, at 07:00 AM WIB.

1. West Kutai Regency (East Kalimantan): 6
2. South Lampung Regency (Lampung): 10
3. Malang (East Java): 18
4. Tarakan (North Kalimantan): 19
5. Probolinggo (East Java): 20
6. Bontang (East Kalimantan): 22
7. Sukabumi Regency (West Java): 23
8. Mataram (West Nusa Tenggara): 25
9. Gresik (East Java): 26
10. Tasikmalaya Regency (West Java): 27

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Based on Ministry of Environment and Forestry 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 Saturday (1/31/2026) at 07:00 AM WIB, all these cities had good air quality.

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