Air Pollution Thursday Morning (18/12): South Sumatra Most Severe, How About Other Regions?

Air quality in South Sumatra 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 Thursday (18/12/2025) at 08.00 AM WIB, it was revealed that the air quality index in South Sumatra was 97.

According to the Directorate of Air Pollution Control of KLHK, ISPU is a unitless number used to describe the ambient air quality conditions at 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. Measurements of these air pollutant parameters are spread across 72 stations in various regions.

(Read: Volcanic Eruption Trends in Recent Years)

Based on KLHK 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 above 300 can seriously harm health and requires prompt attention.

Below South Sumatra, Banten occupies the second worst position in Indonesia with an air quality index of 95. Then, in the third position is Jambi with an air quality index of 92.

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 Thursday, December 18, 2025, at 08.00 AM WIB.

1. South Sumatra: 97

2. Banten: 95

3. Jambi: 92

4. North Sumatra: 90

5. Central Kalimantan: 89

6. West Sumatra: 82

7. East Kalimantan: 75

8. Lampung: 74

9. Central Java: 70

10. West Java: 66

(Read: Volcanic Eruption Trends in Recent Years)