South Sumatra's Air Quality on March 10 Evening is the Worst in Indonesia

South Sumatra's air quality this evening is the worst in Indonesia. Based on the Air Pollution Standard Index (ISPU) page of the Ministry of Environment and Forestry (KLHK) on Tuesday (March 10, 2026) at 6:00 PM WIB, it was revealed that South Sumatra's air quality index is 99.

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 value, 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: Jakarta and Medan are the World's Most Polluted Cities, Here's Their Air Quality Trend)

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

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

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

This means that no region has hazardous air quality.

Here is the list of 10 provinces with the worst air quality index in Indonesia on Tuesday, March 10, 2026 at 6:00 PM WIB.

1. South Sumatra: 99

2. North Sumatra: 93

3. Riau: 90

4. Jambi: 86

5. Aceh: 83

6. North Sumatra: 79

7. Lampung: 74

8. South Kalimantan: 72

9. East Java: 71

10. Central Kalimantan: 70

(Read: Jakarta and Medan are the World's Most Polluted Cities, Here's Their Air Quality Trend)