South Sumatra Air Pollution in the Morning (13/1) Worst in Indonesia

Air quality in South Sumatra this morning is the worst in Indonesia. Based on the Air Pollution Standard Index (APSI) page of the Ministry of Environment and Forestry (KLHK) on Tuesday (January 13, 2026) at 08.00 AM WIB, it was revealed that the air quality index in South Sumatra was 99.

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

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

(Read: Floods, Natural Disasters That Widely Hit Indonesia as of September 2025)

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

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

Below South Sumatra, Banten ranks second worst in Indonesia with an air quality index of 95. Then, in third place is Jambi with an air quality index of 90.

This means that no area has hazardous air quality.

Here is a list of the 10 provinces with the worst air quality index in Indonesia on Tuesday, January 13, 2026 at 08.00 AM WIB.

1. South Sumatra: 99

2. Banten: 95

3. Jambi: 90

4. Riau: 89

5. West Sumatra: 86

6. Aceh: 85

7. North Sumatra: 79

8. North Sumatra: 76

9. Lampung: 74

10. East Kalimantan: 72

(Read: Floods, Natural Disasters That Widely Hit Indonesia as of September 2025)