SmogRank / World / Japan / Osaka / March 2024
Most polluted cities in Osaka, Japan, March 2024
1 city in Osaka, Japan ranked by their average PM2.5 over the 31 days. The only one: Toyonaka at 9.9 µg/m³, #416 of 1,643 cities in the world. A city needs measurements on 70% of the days to be ranked.
OpenAQ's archive, where our readings come from, has almost none from Japan for March 21, 2024: cities in Japan are averaged over their other days. Why.
Osaka has 16 cities ranked over the last 30 days, but only 1 here: most of its monitors have no readings for March 2024 in OpenAQ's archive, where ours come from, or too few to rank. Cities missing from this board weren't clean, just not measured.
- 1Toyonaka 52
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
All cities in the world, March 2024 · All cities in Japan, March 2024 · Osaka now
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SmogRank, most polluted cities in Osaka, Japan, PM2.5, March 2024, smogrank.com/jp/region/osaka/history/2024-03 (accessed 6 Oct 2026).
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.