10 Most Polluted Regions in Indonesia This Morning (Feb 19)

Banten has the worst air quality in Indonesia this morning. Based on the Air Pollution Standard Index (ISPU) page of the Ministry of Environment and Forestry (KLHK) on Thursday (February 19, 2026) at 08.00 WIB, it was revealed that the air quality index in Banten is 95.

According to the KLHK Air Pollution Control Directorate, ISPU is a unitless number used to describe ambient air quality conditions at a specific location, 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: Floods, Natural Disasters That Frequently Hit Indonesia as of September 2025)

Based on KLHK 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 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 Banten, West Java ranks second worst in Indonesia with an air quality index of 93. Then, in third place is Lampung with an air quality index of 74.

This means that no region has hazardous air quality.

Below is the list of 10 provinces with the worst air quality index in Indonesia on Thursday, February 19, 2026 at 08.00 WIB.

1. Banten: 95

2. West Java: 93

3. Lampung: 74

4. South Sulawesi: 69

5. South Kalimantan: 68

6. East Java: 64

7. Central Kalimantan: 63

8. West Kalimantan: 62

9. North Sulawesi: 55

10. Central Java: 53

(Read: Floods, Natural Disasters That Frequently Hit Indonesia as of September 2025)