West Java Air Quality at Night (13/8) Worst in Indonesia

Air quality in West Java tonight is the worst in Indonesia. Based on the Air Pollutant Standard Index (ISPU) page of the Ministry of Environment and Forestry (KLHK) on Wednesday (August 13, 2025) at 6:00 PM WIB, it was revealed that the air quality index in West Java was 101.

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

ISPU calculation is based on the measurement results of seven air pollutant parameters, namely PM10, PM2.5, NO2, SO2, CO, O3, and HC. Measurements of air pollutant parameters are spread across 72 stations in various regions.

(Read: Most Frequent Natural Disasters in Indonesia Until Early September 2023)

Based on Minister of Environment and Forestry Regulation No. 14 of 2020 concerning the Air Pollutant Standard Index, 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 more than 300 can seriously harm health and requires quick handling.

Below West Java, Kep. Riau ranks second worst in Indonesia with an air quality index of 100. Then, in third place is Lampung with an air quality index of 95.

This means that no region has hazardous air quality.

Below is a list of the 10 provinces with the worst air quality index in Indonesia on Wednesday, August 13, 2025, at 6:00 PM WIB.

1. West Java: 101

2. Riau Islands: 100

3. Lampung: 95

4. North Sumatra: 94

5. Riau: 93

6. South Sumatra: 92

7. DKI Jakarta: 91

8. Banten: 90

9. West Sumatra: 88

10. Aceh: 84

(Read: Most Frequent Natural Disasters in Indonesia Until Early September 2023)