10 Regions in Indonesia with the Cleanest Air This Afternoon (20/9)

Tabalong Regency''s air quality this afternoon is the cleanest in Indonesia. Based on the air quality index from the Ministry of Environment and Forestry (KLHK), Tabalong Regency scored 3 on Saturday (September 20, 2025) at 4:00 PM WIB.

At that time, Tabalong Regency''s air quality was categorized as good, meaning pollutant levels in Tabalong Regency''s air were very minimal. Subsequently, Lamongan Regency ranked second with an air quality index of 14. Next, Madiun 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 Saturday, September 20, 2025, at 4:00 PM WIB.

1. Tabalong Regency (South Kalimantan): 3
2. Lamongan Regency (East Java): 14
3. Madiun Regency (East Java): 15
4. Pangkal Pinang (Bangka Belitung Islands): 16
5. West Manggarai Regency (East Nusa Tenggara): 19
6. Tarakan (North Kalimantan): 20
7. Ternate (North Maluku): 21
8. Banyuwangi Regency (East Java): 22
9. Probolinggo (East Java): 23
10. Banda Aceh (Aceh): 25

(Read: Indonesia''s Air Quality Slightly Improved in 2021)

Based on Ministry of Environment and Forestry Regulation No. 14 of 2020 concerning the Air Pollutant Standard Index, KLHK applies 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 (September 20, 2025) at 4:00 PM WIB, all these cities had good air quality.

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