10 Areas in Indonesia with the Cleanest Air This Afternoon (21/11)

The air quality in South Lampung Regency is the cleanest in Indonesia this afternoon. Based on the air quality index version of the Ministry of Environment and Forestry (KLHK), South Lampung Regency has a score of 13 on Friday (11/21/2025) at 4:00 PM WIB.

At that time, the air quality in South Lampung Regency was categorized as good, meaning that the level of pollutants in the air of South Lampung Regency was very minimal. Furthermore, Madiun Regency ranked second with an air quality index of 14. Next, Nabire Regency was in third place with an air quality index of 15.

Here is the complete list of the 10 cities with the cleanest air quality in Indonesia according to KLHK on Friday, November 21, 2025, at 4:00 PM WIB.

1. South Lampung Regency (Lampung): 13
2. Madiun Regency (East Java): 14
3. Nabire Regency (Central Papua): 15
4. Tarakan (North Kalimantan): 19
5. South Tangerang (Banten): 20
6. Sukabumi Regency (West Java): 23
7. Kendari (Southeast Sulawesi): 24
8. Gresik (East Java): 25
9. South Hulu Sungai Regency (South Kalimantan): 26
10. Samarinda (East Kalimantan): 27

(Read: Countries with the Most Active Volcanoes in the World, Indonesia Ranks First)

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 (11/21/2025) at 4:00 PM WIB, all of these cities had good air quality.

(Read: Indonesia Has the Most Active Volcanoes in the World)