10 Regions in Indonesia with the Cleanest Air This Morning (18/1)
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Gresik's air quality is the cleanest in Indonesia this morning. Based on the air quality index version of the Ministry of Environment and Forestry (KLHK), Gresik scored 15 on Sunday (18/1/2026) at 06.00 AM WIB.
At that time, Gresik's air quality was classified as good, meaning that pollutant levels in Gresik's air were very minimal. Furthermore, Malang ranked second with an air quality index of 18. Next, Semarang was in third place with an air quality index of 20.
Below is the complete list of the 10 cities with the cleanest air quality in Indonesia according to KLHK on Sunday, January 18, 2026, at 06.00 AM WIB.
- Gresik (East Java): 15
- Malang (East Java): 18
- Semarang (Central Java): 20
- Sukabumi Regency (West Java): 22
- Probolinggo (East Java): 23
- South Lampung Regency (Lampung): 25
- Tomohon (North Sulawesi): 26
- West Kotawaringin Regency (Central Kalimantan): 27
- Cilegon (Banten): 29
- Lumajang Regency (East Java): 31
(Read: 4.16 M Earthquake Shakes Mona Passage)
Based on KLHK Regulation No. 14 of 2020 concerning the Air Pollutant Standard Index, KLHK applies the following air quality index classification.
- 0-50: good
- 51-100: moderate
- 101-200: unhealthy
- 201-300: very unhealthy
- 300+: hazardous
This means that on Sunday (18/1/2026) at 06.00 AM WIB, all these cities had good air quality.
"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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