North Sumatra's Air Quality Saturday Morning (Feb 7) is the Worst in Indonesia

North Sumatra's air quality this morning is the worst in Indonesia. Based on the Ministry of Environment and Forestry (KLHK) Air Pollution Standard Index (ISPU) page on Saturday (7/2/2026) at 08.00 WIB, it was revealed that North Sumatra's air quality index is 114.

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: 4.5 M Earthquake Shakes 14 Km North of San Carlos,)

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 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 North Sumatra, South Sumatra ranks second worst in Indonesia with an air quality index of 106. Then, in third place is Banten with an air quality index of 95.

This means no region has hazardous air quality.

Here is the list of 10 provinces with the worst air quality index in Indonesia on Saturday, 7 February 2026 at 08.00 WIB.

1. North Sumatra: 114

2. South Sumatra: 106

3. Banten: 95

4. Central Kalimantan: 94

5. Jambi: 91

6. North Sumatra: 86

7. West Java: 83

8. South Sulawesi: 79

9. Lampung: 74

10. Central Java: 69

(Read: 4.5 M Earthquake Shakes 14 Km North of San Carlos,)