SmogRank / Japan / Aichi

Air quality in Nagoya

Aichi, Japan. PM2.5 from 17 reference monitors, updated hourly.

6.5 µg/m³
Good

Latest hour (04:00 UTC), 0.4× the WHO 24-hour guideline.

Rank

24 h
–
not enough data
7 days
#768
of 2,330 · 8.7 µg/m³
30 days
#800
of 2,327 · 7.2 µg/m³
Year
#1,007
of 2,160 · 8.9 µg/m³

Last 4 days, hour by hour

15302026-09-30 23:00 UTC: 8.5 µg/m³2026-10-01 00:00 UTC: 8.5 µg/m³2026-10-01 01:00 UTC: 5.0 µg/m³2026-10-01 02:00 UTC: 3.5 µg/m³2026-10-01 03:00 UTC: 5.0 µg/m³2026-10-01 04:00 UTC: 6.5 µg/m³Sep 28Sep 29Sep 30Oct 1

Times in UTC. Dashed line: WHO 24-hour guideline (15 µg/m³).

Every day for a year

SepNovDecJanFebMarAprMayJunJulAugSepMonWedFri2025-09-29: 4.8 µg/m³2025-09-30: 5.1 µg/m³2025-10-01: 8.6 µg/m³2025-10-02: 7.4 µg/m³2025-10-03: 11.3 µg/m³2025-10-04: 8.6 µg/m³2025-10-05: 7.1 µg/m³2025-10-06: 8.1 µg/m³2025-10-07: 10.5 µg/m³2025-10-08: 12.2 µg/m³2025-10-09: 5.1 µg/m³2025-10-10: 8.3 µg/m³2025-10-11: 9.4 µg/m³2025-10-12: 7.2 µg/m³2025-10-13: 4.3 µg/m³2025-10-14: 6.8 µg/m³2025-10-15: 6.3 µg/m³2025-10-16: 7.1 µg/m³2025-10-17: 5.2 µg/m³2025-10-18: 7.6 µg/m³2025-10-19: 3.7 µg/m³2025-10-20: 5.1 µg/m³2025-10-21: 2.5 µg/m³2025-10-22: 5.2 µg/m³2025-10-23: 6.2 µg/m³2025-10-24: no data2025-10-25: no data2025-10-26: no data2025-10-27: no data2025-10-28: 5.5 µg/m³2025-10-29: 7.2 µg/m³2025-10-30: 12.9 µg/m³2025-10-31: 10.4 µg/m³2025-11-01: 4.0 µg/m³2025-11-02: 8.5 µg/m³2025-11-03: 4.4 µg/m³2025-11-04: 4.9 µg/m³2025-11-05: 11.1 µg/m³2025-11-06: 7.3 µg/m³2025-11-07: 8.2 µg/m³2025-11-08: 11.6 µg/m³2025-11-09: 11.5 µg/m³2025-11-10: 6.3 µg/m³2025-11-11: 5.6 µg/m³2025-11-12: 7.1 µg/m³2025-11-13: 10.9 µg/m³2025-11-14: 11.9 µg/m³2025-11-15: 8.5 µg/m³2025-11-16: 11.7 µg/m³2025-11-17: 13.3 µg/m³2025-11-18: 3.8 µg/m³2025-11-19: 4.4 µg/m³2025-11-20: 9.0 µg/m³2025-11-21: 12.4 µg/m³2025-11-22: 5.3 µg/m³2025-11-23: 9.4 µg/m³2025-11-24: 12.7 µg/m³2025-11-25: 14.9 µg/m³2025-11-26: 7.2 µg/m³2025-11-27: 14.0 µg/m³2025-11-28: 9.3 µg/m³2025-11-29: 5.2 µg/m³2025-11-30: 11.8 µg/m³2025-12-01: 16.4 µg/m³2025-12-02: 17.8 µg/m³2025-12-03: 8.8 µg/m³2025-12-04: 2.2 µg/m³2025-12-05: 4.6 µg/m³2025-12-06: 7.4 µg/m³2025-12-07: 11.8 µg/m³2025-12-08: 13.8 µg/m³2025-12-09: 5.4 µg/m³2025-12-10: 6.0 µg/m³2025-12-11: 11.0 µg/m³2025-12-12: 3.4 µg/m³2025-12-13: 6.0 µg/m³2025-12-14: 9.1 µg/m³2025-12-15: 3.0 µg/m³2025-12-16: 6.8 µg/m³2025-12-17: 12.7 µg/m³2025-12-18: 4.3 µg/m³2025-12-19: 10.9 µg/m³2025-12-20: 8.9 µg/m³2025-12-21: 7.6 µg/m³2025-12-22: 3.7 µg/m³2025-12-23: 9.4 µg/m³2025-12-24: 6.9 µg/m³2025-12-25: 6.8 µg/m³2025-12-26: 2.4 µg/m³2025-12-27: 5.1 µg/m³2025-12-28: 7.1 µg/m³2025-12-29: 11.4 µg/m³2025-12-30: 12.1 µg/m³2025-12-31: 4.1 µg/m³2026-01-01: 2.8 µg/m³2026-01-02: 2.6 µg/m³2026-01-03: 2.8 µg/m³2026-01-04: 7.2 µg/m³2026-01-05: 10.9 µg/m³2026-01-06: 2.9 µg/m³2026-01-07: 8.9 µg/m³2026-01-08: 6.7 µg/m³2026-01-09: 4.5 µg/m³2026-01-10: 12.2 µg/m³2026-01-11: 7.7 µg/m³2026-01-12: 4.7 µg/m³2026-01-13: 10.0 µg/m³2026-01-14: 3.9 µg/m³2026-01-15: 11.0 µg/m³2026-01-16: 16.6 µg/m³2026-01-17: 18.0 µg/m³2026-01-18: 13.8 µg/m³2026-01-19: no data2026-01-20: 4.1 µg/m³2026-01-21: 2.6 µg/m³2026-01-22: 2.2 µg/m³2026-01-23: 4.2 µg/m³2026-01-24: no data2026-01-25: no data2026-01-26: 2.8 µg/m³2026-01-27: 7.6 µg/m³2026-01-28: 5.7 µg/m³2026-01-29: no data2026-01-30: 3.8 µg/m³2026-01-31: 4.5 µg/m³2026-02-01: 6.3 µg/m³2026-02-02: 6.4 µg/m³2026-02-03: 5.6 µg/m³2026-02-04: 13.2 µg/m³2026-02-05: 15.5 µg/m³2026-02-06: 16.0 µg/m³2026-02-07: 3.5 µg/m³2026-02-08: 3.3 µg/m³2026-02-09: 3.7 µg/m³2026-02-10: 9.6 µg/m³2026-02-11: 7.9 µg/m³2026-02-12: 14.9 µg/m³2026-02-13: 15.1 µg/m³2026-02-14: 19.0 µg/m³2026-02-15: 20.5 µg/m³2026-02-16: 14.8 µg/m³2026-02-17: 5.4 µg/m³2026-02-18: 6.1 µg/m³2026-02-19: 3.3 µg/m³2026-02-20: 9.0 µg/m³2026-02-21: 16.5 µg/m³2026-02-22: 13.3 µg/m³2026-02-23: 15.1 µg/m³2026-02-24: 16.0 µg/m³2026-02-25: 11.0 µg/m³2026-02-26: 4.9 µg/m³2026-02-27: 11.1 µg/m³2026-02-28: 4.2 µg/m³2026-03-01: 6.1 µg/m³2026-03-02: 12.5 µg/m³2026-03-03: 8.5 µg/m³2026-03-04: 2.3 µg/m³2026-03-05: 4.6 µg/m³2026-03-06: 9.4 µg/m³2026-03-07: 5.5 µg/m³2026-03-08: 6.4 µg/m³2026-03-09: 6.1 µg/m³2026-03-10: 6.1 µg/m³2026-03-11: 5.7 µg/m³2026-03-12: 5.0 µg/m³2026-03-13: 3.8 µg/m³2026-03-14: 2.2 µg/m³2026-03-15: 2.6 µg/m³2026-03-16: 5.2 µg/m³2026-03-17: 10.4 µg/m³2026-03-18: 17.8 µg/m³2026-03-19: 8.6 µg/m³2026-03-20: 11.7 µg/m³2026-03-21: 13.5 µg/m³2026-03-22: 19.3 µg/m³2026-03-23: 15.4 µg/m³2026-03-24: 13.2 µg/m³2026-03-25: 14.4 µg/m³2026-03-26: 4.0 µg/m³2026-03-27: 7.8 µg/m³2026-03-28: 16.2 µg/m³2026-03-29: 22.1 µg/m³2026-03-30: 15.9 µg/m³2026-03-31: 5.6 µg/m³2026-04-01: 4.1 µg/m³2026-04-02: 3.5 µg/m³2026-04-03: 11.1 µg/m³2026-04-04: 9.4 µg/m³2026-04-05: 4.9 µg/m³2026-04-06: 11.6 µg/m³2026-04-07: 11.5 µg/m³2026-04-08: 8.7 µg/m³2026-04-09: 9.8 µg/m³2026-04-10: 7.1 µg/m³2026-04-11: 8.4 µg/m³2026-04-12: 9.0 µg/m³2026-04-13: 12.9 µg/m³2026-04-14: 17.0 µg/m³2026-04-15: 9.1 µg/m³2026-04-16: 7.6 µg/m³2026-04-17: 11.7 µg/m³2026-04-18: 10.5 µg/m³2026-04-19: 11.0 µg/m³2026-04-20: 10.6 µg/m³2026-04-21: 7.8 µg/m³2026-04-22: 11.4 µg/m³2026-04-23: 10.6 µg/m³2026-04-24: 7.3 µg/m³2026-04-25: 10.1 µg/m³2026-04-26: 8.4 µg/m³2026-04-27: 6.1 µg/m³2026-04-28: 11.1 µg/m³2026-04-29: 10.2 µg/m³2026-04-30: 8.3 µg/m³2026-05-01: 4.4 µg/m³2026-05-02: 8.6 µg/m³2026-05-03: 14.7 µg/m³2026-05-04: 5.1 µg/m³2026-05-05: 6.1 µg/m³2026-05-06: 7.2 µg/m³2026-05-07: 8.6 µg/m³2026-05-08: 8.5 µg/m³2026-05-09: 5.5 µg/m³2026-05-10: 7.6 µg/m³2026-05-11: 8.1 µg/m³2026-05-12: 7.9 µg/m³2026-05-13: 9.2 µg/m³2026-05-14: 10.2 µg/m³2026-05-15: 15.8 µg/m³2026-05-16: 14.9 µg/m³2026-05-17: 12.1 µg/m³2026-05-18: 16.6 µg/m³2026-05-19: 14.5 µg/m³2026-05-20: 10.1 µg/m³2026-05-21: 5.8 µg/m³2026-05-22: 5.1 µg/m³2026-05-23: 5.4 µg/m³2026-05-24: 6.6 µg/m³2026-05-25: 8.8 µg/m³2026-05-26: 7.1 µg/m³2026-05-27: 5.5 µg/m³2026-05-28: 7.0 µg/m³2026-05-29: 4.4 µg/m³2026-05-30: 7.3 µg/m³2026-05-31: 12.7 µg/m³2026-06-01: 12.2 µg/m³2026-06-02: 5.8 µg/m³2026-06-03: 3.8 µg/m³2026-06-04: 4.9 µg/m³2026-06-05: 7.9 µg/m³2026-06-06: 11.3 µg/m³2026-06-07: 8.6 µg/m³2026-06-08: 4.4 µg/m³2026-06-09: 4.9 µg/m³2026-06-10: 4.8 µg/m³2026-06-11: 9.6 µg/m³2026-06-12: 14.2 µg/m³2026-06-13: 17.1 µg/m³2026-06-14: 11.7 µg/m³2026-06-15: 8.1 µg/m³2026-06-16: 9.6 µg/m³2026-06-17: 7.1 µg/m³2026-06-18: 7.1 µg/m³2026-06-19: 11.5 µg/m³2026-06-20: 6.2 µg/m³2026-06-21: 5.3 µg/m³2026-06-22: 2.0 µg/m³2026-06-23: 5.2 µg/m³2026-06-24: 9.1 µg/m³2026-06-25: 7.2 µg/m³2026-06-26: 5.3 µg/m³2026-06-27: 3.6 µg/m³2026-06-28: 9.7 µg/m³2026-06-29: 14.3 µg/m³2026-06-30: 20.4 µg/m³2026-07-01: 15.5 µg/m³2026-07-02: 5.2 µg/m³2026-07-03: 6.9 µg/m³2026-07-04: 7.4 µg/m³2026-07-05: 5.9 µg/m³2026-07-06: 4.9 µg/m³2026-07-07: 9.7 µg/m³2026-07-08: 11.1 µg/m³2026-07-09: 11.0 µg/m³2026-07-10: 8.1 µg/m³2026-07-11: 8.2 µg/m³2026-07-12: 10.4 µg/m³2026-07-13: 11.0 µg/m³2026-07-14: 7.3 µg/m³2026-07-15: 13.6 µg/m³2026-07-16: 14.0 µg/m³2026-07-17: 17.0 µg/m³2026-07-18: 12.8 µg/m³2026-07-19: 7.1 µg/m³2026-07-20: 11.0 µg/m³2026-07-21: 20.4 µg/m³2026-07-22: 24.5 µg/m³2026-07-23: 13.1 µg/m³2026-07-24: 10.5 µg/m³2026-07-25: 12.2 µg/m³2026-07-26: 10.4 µg/m³2026-07-27: 8.3 µg/m³2026-07-28: 9.3 µg/m³2026-07-29: 7.4 µg/m³2026-07-30: 13.5 µg/m³2026-07-31: 10.5 µg/m³2026-08-01: 11.6 µg/m³2026-08-02: 11.8 µg/m³2026-08-03: 14.0 µg/m³2026-08-04: 9.4 µg/m³2026-08-05: 10.9 µg/m³2026-08-06: 8.4 µg/m³2026-08-07: 5.8 µg/m³2026-08-08: 5.5 µg/m³2026-08-09: 6.8 µg/m³2026-08-10: 9.0 µg/m³2026-08-11: 6.2 µg/m³2026-08-12: 5.4 µg/m³2026-08-13: 8.2 µg/m³2026-08-14: 6.9 µg/m³2026-08-15: 5.7 µg/m³2026-08-16: 5.7 µg/m³2026-08-17: 4.6 µg/m³2026-08-18: 4.8 µg/m³2026-08-19: 6.2 µg/m³2026-08-20: 7.3 µg/m³2026-08-21: 10.0 µg/m³2026-08-22: 10.5 µg/m³2026-08-23: 8.9 µg/m³2026-08-24: 8.9 µg/m³2026-08-25: 12.4 µg/m³2026-08-26: 11.4 µg/m³2026-08-27: 7.1 µg/m³2026-08-28: 5.0 µg/m³2026-08-29: 9.6 µg/m³2026-08-30: 11.4 µg/m³2026-08-31: 11.0 µg/m³2026-09-01: 10.3 µg/m³2026-09-02: 7.0 µg/m³2026-09-03: 6.2 µg/m³2026-09-04: 5.2 µg/m³2026-09-05: 6.6 µg/m³2026-09-06: 6.6 µg/m³2026-09-07: 4.2 µg/m³2026-09-08: 4.8 µg/m³2026-09-09: 5.2 µg/m³2026-09-10: 6.3 µg/m³2026-09-11: 6.1 µg/m³2026-09-12: 10.8 µg/m³2026-09-13: 4.5 µg/m³2026-09-14: 4.5 µg/m³2026-09-15: 5.6 µg/m³2026-09-16: 5.1 µg/m³2026-09-17: 5.0 µg/m³2026-09-18: 9.7 µg/m³2026-09-19: 13.7 µg/m³2026-09-20: 7.4 µg/m³2026-09-21: 4.3 µg/m³2026-09-22: 6.5 µg/m³2026-09-23: 8.4 µg/m³2026-09-24: 9.1 µg/m³2026-09-25: 10.9 µg/m³2026-09-26: 10.0 µg/m³2026-09-27: 10.0 µg/m³2026-09-28: 8.0 µg/m³2026-09-29: 5.3 µg/m³2026-09-30: 7.8 µg/m³
Good 0–9.0Moderate 9.1+Unhealthy for sensitive groups 35.5+Unhealthy 55.5+Very unhealthy 125.5+Hazardous 225.5+No data

27 of 357 measured days were over the WHO 24-hour guideline.

Daily world rank

#1#2263OctNovDecJanFebMarAprMayJunJulAugSep

Rank on each day's board (1 = most polluted city that day).

2026 against 2025, month by month

15Jan 2025: 8.1 µg/m³Jan 2026: 6.8 µg/m³JanFeb 2025: 7.3 µg/m³Feb 2026: 10.4 µg/m³FebMar 2025: 11.5 µg/m³Mar 2026: 9.3 µg/m³MarApr 2025: 11.5 µg/m³Apr 2026: 9.4 µg/m³AprMay 2025: 10.4 µg/m³May 2026: 8.8 µg/m³MayJun 2025: 11.2 µg/m³Jun 2026: 8.4 µg/m³JunJul 2025: 12.4 µg/m³Jul 2026: 10.9 µg/m³JulAug 2025: 12.8 µg/m³Aug 2026: 8.4 µg/m³AugSep 2025: 7.7 µg/m³Sep 2026: 7.2 µg/m³SepOct 2025: 7.4 µg/m³OctNov 2025: 8.9 µg/m³NovDec 2025: 8.0 µg/m³Dec

Faded bars: 2025. A month shows once it has 10 measured days.

This week against past years

This weekThis week: 8.7 µg/m³8.720252025: 6.9 µg/m³6.9

Mean PM2.5 for 24 Sept to 30 Sept in each year. Dashed line: WHO 24-hour guideline.

Monitors

StationOperatorType
名古屋市中区大須２丁目４０４番地先政府標準利用規約（第2.0版） (Government Standard Terms of Use v2.0)Ministry of the Environment Air Pollutant Wide Area Monitoring SystemReference
名古屋市中川区元中野町２－１１政府標準利用規約（第2.0版） (Government Standard Terms of Use v2.0)Ministry of the Environment Air Pollutant Wide Area Monitoring SystemReference
名古屋市中川区春田３－２１５政府標準利用規約（第2.0版） (Government Standard Terms of Use v2.0)Ministry of the Environment Air Pollutant Wide Area Monitoring SystemReference
名古屋市中村区名楽町４－７－１８政府標準利用規約（第2.0版） (Government Standard Terms of Use v2.0)Ministry of the Environment Air Pollutant Wide Area Monitoring SystemReference
名古屋市北区田幡２－４－５政府標準利用規約（第2.0版） (Government Standard Terms of Use v2.0)Ministry of the Environment Air Pollutant Wide Area Monitoring SystemReference
名古屋市北区福徳町５丁目１０２番地政府標準利用規約（第2.0版） (Government Standard Terms of Use v2.0)Ministry of the Environment Air Pollutant Wide Area Monitoring SystemReference
名古屋市千種区鹿子殿２１－１政府標準利用規約（第2.0版） (Government Standard Terms of Use v2.0)Ministry of the Environment Air Pollutant Wide Area Monitoring SystemReference
名古屋市南区元塩町２政府標準利用規約（第2.0版） (Government Standard Terms of Use v2.0)Ministry of the Environment Air Pollutant Wide Area Monitoring SystemReference
名古屋市南区汐田町１３０４政府標準利用規約（第2.0版） (Government Standard Terms of Use v2.0)Ministry of the Environment Air Pollutant Wide Area Monitoring SystemReference
名古屋市天白区島田２－２０１政府標準利用規約（第2.0版） (Government Standard Terms of Use v2.0)Ministry of the Environment Air Pollutant Wide Area Monitoring SystemReference
名古屋市守山区小幡１－３－１政府標準利用規約（第2.0版） (Government Standard Terms of Use v2.0)Ministry of the Environment Air Pollutant Wide Area Monitoring SystemReference
名古屋市昭和区滝川町１３１政府標準利用規約（第2.0版） (Government Standard Terms of Use v2.0)Ministry of the Environment Air Pollutant Wide Area Monitoring SystemReference
名古屋市港区惟信町２－２６２政府標準利用規約（第2.0版） (Government Standard Terms of Use v2.0)Ministry of the Environment Air Pollutant Wide Area Monitoring SystemReference
名古屋市港区港陽１－１－６５政府標準利用規約（第2.0版） (Government Standard Terms of Use v2.0)Ministry of the Environment Air Pollutant Wide Area Monitoring SystemReference
名古屋市熱田区旗屋一丁目10-45政府標準利用規約（第2.0版） (Government Standard Terms of Use v2.0)Ministry of the Environment Air Pollutant Wide Area Monitoring SystemReference
名古屋市西区新福寺町２－１－２政府標準利用規約（第2.0版） (Government Standard Terms of Use v2.0)Ministry of the Environment Air Pollutant Wide Area Monitoring SystemReference
春日井市若草通2丁目１－１政府標準利用規約（第2.0版） (Government Standard Terms of Use v2.0)Ministry of the Environment Air Pollutant Wide Area Monitoring SystemReference

The city's value is the median of its reference monitors each hour; low-cost sensors are listed but not counted when reference monitors exist. Data via OpenAQ; licences as listed. How we rank. Embed this on your site.

Other cities in Japan

Honmachi 9.6Onomichi 9.5Hita 9.4Ōzu 9.3Kanoya 9.3Kobayashi 9.1Kamisu 9.1Ōyanomachi-noboritate 9.0Minamata 9.0Hitoyoshi 8.9Owariasahi 8.9Hyūga 8.9

30-day averages, µg/m³. All of Japan →

Updated 2026-10-01 06:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.