10 Most Polluted Areas in Indonesia Tonight (Feb 14)

West Java has the worst air quality in Indonesia tonight. Based on the Air Pollution Standard Index (ISPU) page of the Ministry of Environment and Forestry (KLHK) on Saturday (February 14, 2026) at 6:00 PM WIB, it was revealed that the air quality index in West Java is 103.

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: Indonesia Has the Most Active Volcanoes in the World)

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.

After West Java, Riau ranks second with the worst air quality in Indonesia with an index of 97. Then, Banten ranks third with an air quality index of 95.

This means that no region has hazardous air quality.

Below is the list of the 10 provinces with the worst air quality indices in Indonesia on Saturday, February 14, 2026 at 6:00 PM WIB.

1. West Java: 103

2. Riau: 97

3. Banten: 95

4. North Sumatra: 92

5. Jambi: 91

6. South Sumatra: 90

7. Aceh: 86

8. Central Kalimantan: 74

9. South Sulawesi: 71

10. South Kalimantan: 68

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