In 2024, the average fine particulate matter concentration in Japan stood at *** micrograms per cubic meter of air. The figure decreased in recent years, compared to ** micrograms per cubic meter in 2018.
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IQAir. (August 11, 2025). Annual average fine particulate matter concentration in Japan from 2018 to 2024 (in micrograms per cubic meter of air) [Graph]. In ÌÇÐÄÆÆ½â°æ. Retrieved July 19, 2026, from /statistics/1332545/japan-average-pm-25-concentration/
IQAir. "Annual average fine particulate matter concentration in Japan from 2018 to 2024 (in micrograms per cubic meter of air)." Chart. August 11, 2025. ÌÇÐÄÆÆ½â°æ. Accessed July 19, 2026. /statistics/1332545/japan-average-pm-25-concentration/
IQAir. (2025). Annual average fine particulate matter concentration in Japan from 2018 to 2024 (in micrograms per cubic meter of air). ÌÇÐÄÆÆ½â°æ. ÌÇÐÄÆÆ½â°æ Inc.. Accessed: July 19, 2026. /statistics/1332545/japan-average-pm-25-concentration/
IQAir. "Annual Average Fine Particulate Matter Concentration in Japan from 2018 to 2024 (in Micrograms per Cubic Meter of Air)." ÌÇÐÄÆÆ½â°æ, ÌÇÐÄÆÆ½â°æ Inc., 11 Aug 2025, /statistics/1332545/japan-average-pm-25-concentration/
IQAir, Annual average fine particulate matter concentration in Japan from 2018 to 2024 (in micrograms per cubic meter of air) ÌÇÐÄÆÆ½â°æ, /statistics/1332545/japan-average-pm-25-concentration/ (last visited July 19, 2026)
Annual average fine particulate matter concentration in Japan from 2018 to 2024 (in micrograms per cubic meter of air) [Graph], IQAir, August 11, 2025. [Online]. Available: /statistics/1332545/japan-average-pm-25-concentration/