10 Most Polluted Regions in Indonesia Tonight (29/7)
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North Sumatra has the worst air quality in Indonesia tonight. Based on the Ministry of Environment and Forestry (KLHK) Air Pollution Standard Index (ISPU) page at 18:00 WIB on Wednesday (29/7/2026), North Sumatra recorded an air quality index of 124.
According to KLHK Air Pollution Control Directorate, ISPU is a unitless number describing ambient air quality at a location, assessed by impacts on human health, aesthetics, and other living organisms.
ISPU calculation uses measurements of 7 air pollutant parameters: PM10, PM2.5, NO2, SO2, CO, O3, and HC, monitored across 72 stations nationwide.
(Read: Floods & Forest Fires: Most Frequent Disasters in Indonesia Throughout 2025)
Per KLHK Ministerial Regulation No.14/2020: ISPU 0-50 = Good; 51-100 = Moderate; 101-200 = Unhealthy (harmful to humans, animals, plants).
Very Unhealthy (201-300) increases health risks for sensitive groups. Hazardous levels (>300) cause severe health harm requiring emergency action.
Following North Sumatra: DKI Jakarta ranks 2nd worst (106), West Kalimantan 3rd (103). No regions recorded Hazardous air quality.
List of 10 provinces with worst air quality 29 July 2026 18:00 WIB:
1. North Sumatra: 124
2. DKI Jakarta: 106
3. West Kalimantan: 103
4. Riau: 98
5. Banten: 90
6. North Sumatra: 89
7. South Sumatra: 88
8. West Sumatra: 87
9. Aceh: 85
10. Jambi: 81
(Read: Floods & Forest Fires: Most Frequent Disasters in Indonesia Throughout 2025)
"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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