10 Regions with the Cleanest Air Quality in Indonesia, West Kutai Regency Ranks First This Afternoon
West Kutai Regency has the cleanest air quality in Indonesia with an index of 7. Nine other cities also show good air quality as per KLHK data on Jan 4, 2026.
South Sumatra had Indonesia's worst air quality (ISPU 100) on Sunday, Jan 4, 2026. The report lists the top 10 regions, explaining ISPU levels from good to hazardous. No areas were in the hazardous ca ...
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