South Sumatra's Air Quality on Night of March 12 is the Worst in Indonesia

South Sumatra's air quality 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 (March 12, 2026) at 18:00 WIB, it was revealed that the air quality index in South Sumatra is 94.

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

ISPU calculations are based on measurements of seven air pollutant parameters: PM10, PM2.5, NO2, SO2, CO, O3, and HC. Pollutant parameter measurements are spread across 72 stations in various regions.

(Read: Five Latest Earthquakes Recorded by BMKG (Saturday, July 19, 2025 13:53:43 WIB))

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

Next, the 201-300 range indicates very unhealthy air quality which can increase health risks for sensitive groups. Meanwhile, air quality in the range above 300 is hazardous, can seriously harm health, and requires immediate handling.

Following South Sumatra, West Java ranks second worst in Indonesia with an air quality index of 93. Then, North Sumatra ranks third with an air quality index of 92.

This means that no region has hazardous air quality.

Below is the list of 10 provinces with the worst air quality index in Indonesia on Thursday, March 12, 2026 at 18:00 WIB.

1. South Sumatra: 94

2. West Java: 93

3. North Sumatra: 92

4. South Kalimantan: 88

5. West Sumatra: 86

6. Jambi: 85

7. Aceh: 83

8. Banten: 76

9. DKI Jakarta: 75

10. Lampung: 74

(Read: Five Latest Earthquakes Recorded by BMKG (Saturday, July 19, 2025 13:53:43 WIB))