10 Most Polluted Regions in Indonesia This Morning (12/11)

Air quality in Banten this morning is the worst in Indonesia. Based on the Air Pollution Standard Index (ISPU) page of the Ministry of Environment and Forestry (KLHK) on Wednesday (12/11/2025) at 08.00 AM WIB, it was revealed that Banten's air quality index was 95.

According to the Directorate of Air Pollution Control KLHK, ISPU is a unitless number used to describe ambient air quality conditions at a specific location, based on its impact on human health, aesthetic value, and other living things.

ISPU calculation is based on the measurement results of seven air pollutant parameters: PM10, PM2.5, NO2, SO2, CO, O3, and HC. Measurements of these air pollutant parameters are spread across 72 stations in various regions.

(Read: Bekasi's Flood Risk Index Highest in Jabodetabek)

Based on Permen LHK No. 14 of 2020 concerning the Air Pollution Standard Index, an ISPU range of 0-50 means good air quality, 51-100 means moderate air quality, and 101-200 means unhealthy air quality that is detrimental to humans, animals, and plants.

Furthermore, very unhealthy air quality in the range of 201-300 can increase health risks for sensitive groups. Meanwhile, hazardous air quality in the range of more than 300 can seriously harm health and requires quick action.

Below Banten, South Sumatra ranks second worst in Indonesia with an air quality index of 93. Then, in third place is Riau with an air quality index of 90.

This means that no region has hazardous air quality.

Here is a list of the 10 provinces with the worst air quality index in Indonesia on Wednesday, November 12, 2025, at 08.00 AM WIB.

1. Banten: 95

2. South Sumatra: 93

3. Riau: 90

4. Jambi: 88

5. West Sumatra: 87

6. Aceh: 86

7. East Java: 85

8. North Sumatra: 84

9. Lampung: 81

10. South Sulawesi: 74

(Read: Bekasi's Flood Risk Index Highest in Jabodetabek)