West Java's Air Quality This Morning (Oct 20) is the Worst in Indonesia

Air quality in West Java 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 Monday (20/10/2025) at 08.00 WIB, it was revealed that the air quality index in West Java was 126.

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

ISPU calculations are 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: Floods Dominate Natural Disasters in Indonesia End of February 2024)

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.

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

Below West Java, Banten ranks second worst in Indonesia with an air quality index of 112. Then, in third place is DKI Jakarta with an air quality index of 109.

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 Monday, October 20, 2025, at 08:00 AM WIB.

1. West Java: 126

2. Banten: 112

3. DKI Jakarta: 109

4. Riau: 93

5. South Sumatra: 91

6. Aceh: 90

7. East Java: 89

8. Bali: 88

9. West Sumatra: 87

10. South Sulawesi: 75

(Read: Floods Dominate Natural Disasters in Indonesia End of February 2024)