South Sumatra Air Pollution at Night (11/12) Worst in Indonesia

Air quality in South Sumatra tonight is the worst in Indonesia. Based on the Air Pollution Standard Index (ISPU) page of the Ministry of Environment and Forestry (KLHK) on Thursday (11/12/2025) at 6:00 PM WIB, it was revealed that the air quality index in South Sumatra was 98.

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

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

(Read: 4.7 M Earthquake Shakes Bonin Islands, Region)

Based on Ministry of Environment and Forestry Regulation No. 14 of 2020 concerning the Air Pollution Standard Index, an ISPU in the range of 0-50 indicates good air quality, 51-100 means moderate air quality, and 101-200 indicates 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 over 300 can seriously harm health and requires quick action.

Below South Sumatra, Riau occupies the second-worst position in Indonesia with an air quality index of 96. Then, in third place is Banten with an air quality index of 95.

This means no region has hazardous air quality.

Here is a list of the 10 provinces with the worst air quality index in Indonesia on Thursday, December 11, 2025, at 6:00 PM WIB.

1. South Sumatra: 98

2. Riau: 96

3. Banten: 95

4. Jambi: 92

5. Central Kalimantan: 88

6. West Sumatra: 87

7. West Papua: 84

8. East Kalimantan: 77

9. West Java: 76

10. Lampung: 74

(Read: 4.7 M Earthquake Shakes Bonin Islands, Region)