10 Regions in Indonesia with the Cleanest Air This Afternoon (Jan 25)
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Semarang's air quality this Sunday (Jan 25, 2026) afternoon is the cleanest in Indonesia.
According to data from the Ministry of Environment and Forestry (KLHK) on Sunday at 4:00 PM WIB, Semarang's air quality index was 19. Three other cities with the cleanest air quality in Indonesia are Gresik at 23, Sukabumi Regency at 24, and Hulu Sungai Selatan Regency at 26.
Citing Ministry of Environment and Forestry Regulation No. 14 of 2020 concerning the Air Pollutant Standard Index (ISPU), KLHK sets air quality index categories into 5 categories.
- 0-50: good
- 51-100: moderate
- 101-200: unhealthy
- 201-300: very unhealthy
- 300+: hazardous
This means Semarang's current air quality index is classified as good, indicating very minimal air pollution in the area.
Below is a list of the 10 cities with the cleanest air quality in Indonesia according to KLHK on Sunday, January 25, 2026, at 4:00 PM WIB.
- Semarang (Central Java): 19
- Gresik (East Java): 23
- Sukabumi Regency (West Java): 24
- Hulu Sungai Selatan Regency (South Kalimantan): 26
- Mojokerto (East Java): 27
- Madiun (East Java): 28
- Cilegon (Banten): 29
- Bontang (East Kalimantan): 32
- Tasikmalaya Regency (West Java): 35
- Asahan Regency (North Sumatra): 36
(Read: Indonesia Has the Most Active Volcanoes in the World)
"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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