West Kalimantan Has Worst Air Pollution in Indonesia Tonight (7/9)
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West Kalimantan recorded the worst air quality in Indonesia tonight. According to the Ministry of Environment and Forestry (KLHK) Air Pollution Standard Index page on Monday (7/9/2026) at 18:00 WIB, West Kalimantan air quality index reached 509.
As defined by KLHK Air Pollution Control Directorate, ISPU is a unitless index describing ambient air quality status at a location, rated by impacts on human health, aesthetics, and living organisms. ISPU is calculated from 7 pollutant parameters (PM10, PM2.5, NO2, SO2, CO, O3, HC) measured across 72 monitoring stations nationwide.
Under Minister of Environment Regulation No.14/2020: ISPU 0-50 = Good; 51-100 = Moderate; 101-200 = Unhealthy; 201-300 = Very Unhealthy (risk for sensitive groups); >300 = Hazardous (requires urgent response).
Ranking follows: 1. West Kalimantan 509, 2. Central Kalimantan 388, 3. East Kalimantan 227, 4. West Sumatra 197, 5. South Kalimantan 195, 6. Jambi 191, 7. Riau 188, 8. South Sumatra 135, 9. South Sumatra 124, 10. DKI Jakarta 88. Both West and Central Kalimantan are at Hazardous level.
"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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