South Barito Regency has Indonesia's cleanest air (AQI 8) as of Jan 5, 2026, followed by Malang, Ambon, and Dumai. KLHK categorizes air quality from good (0-50) to hazardous (300+).

Mount Semeru in East Java erupted again (Jan 4, 2026), reaching 36 eruptions in a week. PVMBG issued a Level III alert, ...