10 Most Polluted Regions in Indonesia This Morning (4/8)
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Riau recorded the worst air quality in Indonesia this morning. Based on the Air Pollution Standard Index (ISPU) data from the Ministry of Environment and Forestry (KLHK) as of Tuesday, 4 August 2026 at 08.00 WIB, Riau obtained an air quality index score of 96.
According to KLHK Air Pollution Control Directorate, ISPU is a unitless index that describes ambient air quality conditions at a given location, measured against impacts on human health, aesthetic values, and other living organisms.
ISPU calculation uses measurement results from seven air pollutant parameters: PM10, PM2.5, NO2, SO2, CO, O3, and HC. Pollutant measurements are conducted across 72 monitoring stations nationwide.
(Read: Number of Victims Affected / Displaced by Natural Disasters in Indonesia 2015-2024)
Under Ministry of Environment Regulation No. 14/2020 on Air Pollution Standard Index: 0-50 = Good air quality; 51-100 = Moderate air quality; 101-200 = Unhealthy air quality with harmful effects for humans, animals and plants.
Further, 201-300 = Very Unhealthy, increasing health risks for sensitive groups. Index values over 300 are classified as Hazardous, causing severe health impacts requiring immediate emergency response.
After Riau, West Kalimantan ranked second worst with 93 index points, followed by South Sumatra at third place with 90 points.
This result confirms no regions recorded Hazardous level air quality on this measurement.
Below is the full list of 10 provinces with the worst air quality in Indonesia measured on Tuesday, 4 August 2026 at 08.00 WIB:
1. Riau: 96
2. West Kalimantan: 93
3. South Sumatra: 90
4. Banten: 89
5. West Sumatra: 87
6. DKI Jakarta: 84
7. Aceh: 82
8. Jambi: 80
9. South Kalimantan: 79
10. Lampung: 77
(Read: Number of Victims Affected / Displaced by Natural Disasters in Indonesia 2015-2024)
"Disclosure: This is an AI-generated translation of the original article. We strive for accuracy, but please note that automated translations may contain errors or slight inconsistencies."
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