DKI Jakarta''s Air Quality Worst in Indonesia on Wednesday Morning (17/9)

Air quality in DKI Jakarta this morning is the worst in Indonesia. Based on the Air Pollutant Standard Index (ISPU) page of the Ministry of Environment and Forestry (KLHK) on Wednesday (September 17, 2025) at 08:00 AM WIB, it was revealed that DKI Jakarta''s air quality index was 116.

According to the Directorate of Air Pollution Control of KLHK, ISPU is a dimensionless 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 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: Forest Fire Hotspots in South Sumatra Increased in Mid-October 2023)

Based on KLHK Regulation No. 14 of 2020 concerning the Air Pollutant Standard Index, 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 quick action.

Below DKI Jakarta, West Java occupies the second worst position in Indonesia with an air quality index of 99. Then, in third place is South Sumatra with an air quality index of 98.

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 Wednesday, September 17, 2025, at 08:00 AM WIB.

1. DKI Jakarta: 116

2. West Java: 99

3. South Sumatra: 98

4. Banten: 95

5. Riau: 93

6. Riau Islands: 92

7. South Sumatra: 90

8. West Sumatra: 87

9. North Sumatra: 85

10. Aceh: 84

(Read: Forest Fire Hotspots in South Sumatra Increased in Mid-October 2023)