Riau Night Air Pollution (3/8) Worst in Indonesia
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Riau had the worst air quality in Indonesia this evening. Based on the Air Pollution Standard Index (ISPU) page from the Ministry of Environment and Forestry as of Monday 3 August 2026 18:00 WIB, Riau recorded an air quality index score of 97.
Per KLHK Air Pollution Control Directorate, ISPU is a unitless index describing ambient air quality at a location, rated by impacts on human health, aesthetics, and other living organisms. It is calculated from 7 pollutant parameters: PM10, PM2.5, NO2, SO2, CO, O3, HC, measured across 72 monitoring stations nationwide.
Under Ministry Regulation No.14/2020: ISPU 0-50 = Good; 51-100 = Moderate; 101-200 = Unhealthy; 201-300 = Very Unhealthy; >300 = Hazardous. All listed regions remained at moderate level, no hazardous readings recorded.
Following Riau: 2. West Kalimantan (96), 3. South Sumatra (92), 4. DKI Jakarta (91), 5. West Sumatra (87), 6. Banten (86), 7. Bengkulu (82), 8. Jambi (81), 9. Central Java (80), 10. Central Kalimantan (77)
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