This article lists the 10 most polluted regions in Indonesia as of February 25, 2026 at 18:00 WIB, with North Sumatra having the highest ISPU at 102. It explains the ISPU scale, parameters, and notes ...
Riau has Indonesia's worst morning air quality on Feb 25,2026 with ISPU 98, followed by Banten (95) and North Sumatra (94).
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