West Java's Air Quality on Sunday Night (April 19) is the Worst in Indonesia

West Java'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 Sunday (April 19, 2026) at 18.00 WIB, it was revealed that West Java's air quality index is 112.

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. Air pollutant parameter measurements are spread across 72 stations in various regions.

(Read: Due to Forest and Land Fires, ARI Cases in South Kalimantan Reach 189 Thousand as of September 2023)

Based on Minister of Environment and Forestry Regulation No. 14 of 2020 concerning the Air Pollution Standard Index, ISPU in the 0-50 range indicates good air quality, 51-100 means moderate air quality, and 101-200 means unhealthy air quality that is harmful to 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 West Java, Riau ranks second with the worst air quality in Indonesia with an index of 96. Then, in third place is South Sumatra with an air quality index of 89.

This means that no region has hazardous air quality.

Below is the list of the 10 provinces with the worst air quality index in Indonesia on Sunday, April 19, 2026 at 18.00 WIB.

1. West Java: 112

2. Riau: 96

3. South Sumatra: 89

4. Aceh: 88

5. DKI Jakarta: 86

6. Jambi: 85

7. South Sulawesi: 80

8. Banten: 73

9. Central Kalimantan: 72

10. East Java: 71

(Read: Due to Forest and Land Fires, ARI Cases in South Kalimantan Reach 189 Thousand as of September 2023)