10 Regions in Indonesia with the Cleanest Air This Afternoon (30/1)

The air quality in West Kutai Regency is the cleanest in Indonesia this afternoon. Based on the air quality index version of the Ministry of Environment and Forestry (KLHK), West Kutai Regency had a score of 6 on Friday (30/1/2026) at 4:00 PM WIB.

At that time, the air quality in West Kutai Regency was categorized as good, meaning the pollutant levels in the air of West Kutai Regency were very minimal. Furthermore, South Lampung Regency ranked second with an air quality index of 10. Next, Purwakarta Regency was in third position with an air quality index of 20.

Here is the complete list of the 10 cities with the cleanest air quality in Indonesia according to KLHK on Friday, January 30, 2026, at 4:00 PM WIB.

1. West Kutai Regency (East Kalimantan): 6
2. South Lampung Regency (Lampung): 10
3. Purwakarta Regency (West Java): 20
4. Semarang (Central Java): 21
5. Bogor Regency (West Java): 22
6. Tarakan (North Kalimantan): 23
7. Mataram (West Nusa Tenggara): 25
8. South Hulu Sungai Regency (South Kalimantan): 26
9. Sragen Regency (Central Java): 28
10. Asahan Regency (North Sumatra): 31

(Read: Last Five Earthquakes Recorded by BMKG (Saturday, July 19, 2025 13:53:43 WIB))

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 Friday (30/1/2026) at 4:00 PM WIB, all these cities had good air quality.

(Read: Last Five Earthquakes Recorded by BMKG (Saturday, July 19, 2025 18:25:55 WIB))