SmogRank / Japan / Kanagawa

Air quality in Isehara

Kanagawa, Japan. PM2.5 from 1 reference monitor, updated hourly.

6.0 µg/m³
Good

Latest hour (03:00 UTC), 0.4× the WHO 24-hour guideline.

Rank

24 h
–
not enough data
7 days
#1,658
of 2,330 · 5.6 µg/m³
30 days
#1,742
of 2,327 · 5.1 µg/m³
Year
#1,377
of 2,160 · 8.1 µg/m³

Last 4 days, hour by hour

15302026-09-30 23:00 UTC: 4.0 µg/m³2026-10-01 00:00 UTC: 3.0 µg/m³2026-10-01 01:00 UTC: 5.0 µg/m³2026-10-01 02:00 UTC: 4.0 µg/m³2026-10-01 03:00 UTC: 6.0 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: no data2025-09-30: no data2025-10-01: no data2025-10-02: no data2025-10-03: no data2025-10-04: no data2025-10-05: no data2025-10-06: no data2025-10-07: no data2025-10-08: no data2025-10-09: no data2025-10-10: no data2025-10-11: no data2025-10-12: no data2025-10-13: no data2025-10-14: no data2025-10-15: no data2025-10-16: no data2025-10-17: no data2025-10-18: no data2025-10-19: no data2025-10-20: no data2025-10-21: no data2025-10-22: no data2025-10-23: no data2025-10-24: no data2025-10-25: no data2025-10-26: no data2025-10-27: no data2025-10-28: no data2025-10-29: no data2025-10-30: no data2025-10-31: no data2025-11-01: no data2025-11-02: no data2025-11-03: no data2025-11-04: no data2025-11-05: no data2025-11-06: no data2025-11-07: no data2025-11-08: no data2025-11-09: no data2025-11-10: no data2025-11-11: no data2025-11-12: no data2025-11-13: no data2025-11-14: no data2025-11-15: no data2025-11-16: no data2025-11-17: no data2025-11-18: no data2025-11-19: no data2025-11-20: no data2025-11-21: no data2025-11-22: no data2025-11-23: no data2025-11-24: no data2025-11-25: no data2025-11-26: no data2025-11-27: no data2025-11-28: 7.8 µg/m³2025-11-29: 5.0 µg/m³2025-11-30: 8.3 µg/m³2025-12-01: 11.4 µg/m³2025-12-02: 14.7 µg/m³2025-12-03: 15.9 µg/m³2025-12-04: no data2025-12-05: 4.4 µg/m³2025-12-06: 6.6 µg/m³2025-12-07: 6.6 µg/m³2025-12-08: 8.4 µg/m³2025-12-09: 3.9 µg/m³2025-12-10: no data2025-12-11: no data2025-12-12: no data2025-12-13: 3.4 µg/m³2025-12-14: 2.6 µg/m³2025-12-15: 3.0 µg/m³2025-12-16: 4.1 µg/m³2025-12-17: 6.1 µg/m³2025-12-18: 5.3 µg/m³2025-12-19: 5.1 µg/m³2025-12-20: 16.0 µg/m³2025-12-21: 8.8 µg/m³2025-12-22: 1.5 µg/m³2025-12-23: 5.2 µg/m³2025-12-24: 6.9 µg/m³2025-12-25: 6.0 µg/m³2025-12-26: 2.6 µg/m³2025-12-27: 6.3 µg/m³2025-12-28: 5.8 µg/m³2025-12-29: 5.9 µg/m³2025-12-30: 9.7 µg/m³2025-12-31: 8.4 µg/m³2026-01-01: 3.4 µg/m³2026-01-02: 2.3 µg/m³2026-01-03: 2.1 µg/m³2026-01-04: 5.4 µg/m³2026-01-05: 6.7 µg/m³2026-01-06: 2.4 µg/m³2026-01-07: 4.9 µg/m³2026-01-08: 4.9 µg/m³2026-01-09: 4.2 µg/m³2026-01-10: 5.9 µg/m³2026-01-11: 5.7 µg/m³2026-01-12: 2.3 µg/m³2026-01-13: 5.3 µg/m³2026-01-14: 4.8 µg/m³2026-01-15: 9.1 µg/m³2026-01-16: no data2026-01-17: no data2026-01-18: no data2026-01-19: no data2026-01-20: 6.8 µg/m³2026-01-21: 3.7 µg/m³2026-01-22: no data2026-01-23: no data2026-01-24: no data2026-01-25: no data2026-01-26: 3.0 µg/m³2026-01-27: 5.1 µg/m³2026-01-28: 4.5 µg/m³2026-01-29: no data2026-01-30: 4.2 µg/m³2026-01-31: 4.6 µg/m³2026-02-01: 4.3 µg/m³2026-02-02: 6.7 µg/m³2026-02-03: 4.5 µg/m³2026-02-04: 7.1 µg/m³2026-02-05: 10.4 µg/m³2026-02-06: 12.6 µg/m³2026-02-07: 3.2 µg/m³2026-02-08: 3.6 µg/m³2026-02-09: 3.1 µg/m³2026-02-10: 5.3 µg/m³2026-02-11: 7.3 µg/m³2026-02-12: 8.1 µg/m³2026-02-13: 9.5 µg/m³2026-02-14: 12.0 µg/m³2026-02-15: 13.2 µg/m³2026-02-16: 13.8 µg/m³2026-02-17: 5.1 µg/m³2026-02-18: 8.3 µg/m³2026-02-19: 4.1 µg/m³2026-02-20: 7.0 µg/m³2026-02-21: 11.3 µg/m³2026-02-22: 9.8 µg/m³2026-02-23: 10.7 µg/m³2026-02-24: 13.1 µg/m³2026-02-25: 7.8 µg/m³2026-02-26: 1.9 µg/m³2026-02-27: 4.3 µg/m³2026-02-28: 10.5 µg/m³2026-03-01: 6.3 µg/m³2026-03-02: 8.5 µg/m³2026-03-03: 4.3 µg/m³2026-03-04: 2.0 µg/m³2026-03-05: 3.8 µg/m³2026-03-06: no data2026-03-07: no data2026-03-08: no data2026-03-09: 6.8 µg/m³2026-03-10: 5.2 µg/m³2026-03-11: 6.6 µg/m³2026-03-12: 6.0 µg/m³2026-03-13: 5.2 µg/m³2026-03-14: 3.0 µg/m³2026-03-15: 5.8 µg/m³2026-03-16: 5.1 µg/m³2026-03-17: 9.3 µg/m³2026-03-18: 9.1 µg/m³2026-03-19: 5.5 µg/m³2026-03-20: 7.9 µg/m³2026-03-21: 12.8 µg/m³2026-03-22: 14.4 µg/m³2026-03-23: 11.0 µg/m³2026-03-24: 13.0 µg/m³2026-03-25: 15.7 µg/m³2026-03-26: 4.9 µg/m³2026-03-27: 5.4 µg/m³2026-03-28: 9.2 µg/m³2026-03-29: 14.1 µg/m³2026-03-30: 16.2 µg/m³2026-03-31: 5.7 µg/m³2026-04-01: 6.7 µg/m³2026-04-02: 2.8 µg/m³2026-04-03: 8.1 µg/m³2026-04-04: 9.2 µg/m³2026-04-05: 7.3 µg/m³2026-04-06: 8.9 µg/m³2026-04-07: 12.3 µg/m³2026-04-08: 7.1 µg/m³2026-04-09: 7.5 µg/m³2026-04-10: 4.6 µg/m³2026-04-11: 9.9 µg/m³2026-04-12: 10.0 µg/m³2026-04-13: 11.4 µg/m³2026-04-14: 13.3 µg/m³2026-04-15: 9.7 µg/m³2026-04-16: 8.3 µg/m³2026-04-17: 8.5 µg/m³2026-04-18: 9.7 µg/m³2026-04-19: 11.8 µg/m³2026-04-20: 11.9 µg/m³2026-04-21: 7.6 µg/m³2026-04-22: 10.3 µg/m³2026-04-23: 9.6 µg/m³2026-04-24: 9.1 µg/m³2026-04-25: 9.0 µg/m³2026-04-26: 8.8 µg/m³2026-04-27: 4.4 µg/m³2026-04-28: 7.8 µg/m³2026-04-29: 14.6 µg/m³2026-04-30: 7.8 µg/m³2026-05-01: 3.0 µg/m³2026-05-02: 4.7 µg/m³2026-05-03: 11.0 µg/m³2026-05-04: 6.0 µg/m³2026-05-05: 5.9 µg/m³2026-05-06: 6.7 µg/m³2026-05-07: 5.4 µg/m³2026-05-08: 7.4 µg/m³2026-05-09: 5.8 µg/m³2026-05-10: 6.4 µg/m³2026-05-11: 5.9 µg/m³2026-05-12: 6.7 µg/m³2026-05-13: 7.8 µg/m³2026-05-14: 12.0 µg/m³2026-05-15: 15.0 µg/m³2026-05-16: 16.7 µg/m³2026-05-17: 16.9 µg/m³2026-05-18: 15.9 µg/m³2026-05-19: 14.5 µg/m³2026-05-20: 10.3 µg/m³2026-05-21: 5.4 µg/m³2026-05-22: 4.0 µg/m³2026-05-23: 7.1 µg/m³2026-05-24: 6.3 µg/m³2026-05-25: 8.2 µg/m³2026-05-26: 8.4 µg/m³2026-05-27: 8.1 µg/m³2026-05-28: 3.4 µg/m³2026-05-29: 6.8 µg/m³2026-05-30: 8.4 µg/m³2026-05-31: 12.2 µg/m³2026-06-01: 14.0 µg/m³2026-06-02: 6.7 µg/m³2026-06-03: 2.1 µg/m³2026-06-04: 3.6 µg/m³2026-06-05: 6.6 µg/m³2026-06-06: 6.0 µg/m³2026-06-07: 9.3 µg/m³2026-06-08: 3.6 µg/m³2026-06-09: 4.1 µg/m³2026-06-10: 6.7 µg/m³2026-06-11: 6.3 µg/m³2026-06-12: 10.1 µg/m³2026-06-13: 14.6 µg/m³2026-06-14: 13.7 µg/m³2026-06-15: 5.2 µg/m³2026-06-16: 6.3 µg/m³2026-06-17: 7.2 µg/m³2026-06-18: 4.8 µg/m³2026-06-19: 9.7 µg/m³2026-06-20: 7.0 µg/m³2026-06-21: 3.2 µg/m³2026-06-22: 5.8 µg/m³2026-06-23: 5.9 µg/m³2026-06-24: 7.7 µg/m³2026-06-25: 4.4 µg/m³2026-06-26: 3.7 µg/m³2026-06-27: 2.3 µg/m³2026-06-28: 4.5 µg/m³2026-06-29: 8.6 µg/m³2026-06-30: 13.5 µg/m³2026-07-01: 16.5 µg/m³2026-07-02: 4.8 µg/m³2026-07-03: 6.2 µg/m³2026-07-04: 9.1 µg/m³2026-07-05: 5.0 µg/m³2026-07-06: 10.0 µg/m³2026-07-07: 8.5 µg/m³2026-07-08: 8.9 µg/m³2026-07-09: 6.7 µg/m³2026-07-10: 6.0 µg/m³2026-07-11: 8.8 µg/m³2026-07-12: 13.0 µg/m³2026-07-13: 17.5 µg/m³2026-07-14: 16.5 µg/m³2026-07-15: 17.4 µg/m³2026-07-16: 26.5 µg/m³2026-07-17: 20.4 µg/m³2026-07-18: 5.3 µg/m³2026-07-19: 4.0 µg/m³2026-07-20: 11.1 µg/m³2026-07-21: 16.4 µg/m³2026-07-22: 23.2 µg/m³2026-07-23: 28.2 µg/m³2026-07-24: 17.4 µg/m³2026-07-25: 19.0 µg/m³2026-07-26: 7.3 µg/m³2026-07-27: 8.8 µg/m³2026-07-28: 9.2 µg/m³2026-07-29: 7.6 µg/m³2026-07-30: 12.2 µg/m³2026-07-31: 21.5 µg/m³2026-08-01: 22.6 µg/m³2026-08-02: 20.9 µg/m³2026-08-03: 4.9 µg/m³2026-08-04: 8.5 µg/m³2026-08-05: 9.6 µg/m³2026-08-06: 7.4 µg/m³2026-08-07: 5.2 µg/m³2026-08-08: 5.9 µg/m³2026-08-09: 9.4 µg/m³2026-08-10: 7.2 µg/m³2026-08-11: 11.2 µg/m³2026-08-12: 5.8 µg/m³2026-08-13: 4.7 µg/m³2026-08-14: 4.1 µg/m³2026-08-15: 7.0 µg/m³2026-08-16: 6.2 µg/m³2026-08-17: 7.3 µg/m³2026-08-18: 4.8 µg/m³2026-08-19: 5.8 µg/m³2026-08-20: 7.1 µg/m³2026-08-21: 8.9 µg/m³2026-08-22: 8.1 µg/m³2026-08-23: 12.4 µg/m³2026-08-24: 14.5 µg/m³2026-08-25: 12.6 µg/m³2026-08-26: 15.3 µg/m³2026-08-27: 9.5 µg/m³2026-08-28: 7.6 µg/m³2026-08-29: 7.3 µg/m³2026-08-30: 6.1 µg/m³2026-08-31: 8.3 µg/m³2026-09-01: 8.5 µg/m³2026-09-02: 7.6 µg/m³2026-09-03: 7.6 µg/m³2026-09-04: 6.8 µg/m³2026-09-05: 5.3 µg/m³2026-09-06: 2.7 µg/m³2026-09-07: 2.5 µg/m³2026-09-08: 5.7 µg/m³2026-09-09: 4.3 µg/m³2026-09-10: 5.4 µg/m³2026-09-11: 5.8 µg/m³2026-09-12: 3.9 µg/m³2026-09-13: 7.0 µg/m³2026-09-14: 4.3 µg/m³2026-09-15: 4.2 µg/m³2026-09-16: 3.8 µg/m³2026-09-17: 4.0 µg/m³2026-09-18: 5.6 µg/m³2026-09-19: 3.0 µg/m³2026-09-20: 3.3 µg/m³2026-09-21: 1.1 µg/m³2026-09-22: 5.2 µg/m³2026-09-23: 5.0 µg/m³2026-09-24: 6.3 µg/m³2026-09-25: 7.9 µg/m³2026-09-26: 4.6 µg/m³2026-09-27: 4.4 µg/m³2026-09-28: 7.1 µg/m³2026-09-29: 4.4 µg/m³2026-09-30: 4.8 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

22 of 291 measured days were over the WHO 24-hour guideline.

Daily world rank

#1#2249DecJanFebMarAprMayJunJulAugSep

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

2026 against 2025, month by month

15Jan 2026: 4.6 µg/m³JanFeb 2026: 7.8 µg/m³FebMar 2026: 8.0 µg/m³MarApr 2026: 8.9 µg/m³AprMay 2026: 8.5 µg/m³MayJun 2026: 6.9 µg/m³JunJul 2026: 12.7 µg/m³JulAug 2026: 8.9 µg/m³AugSep 2026: 5.1 µg/m³SepOctNovDec 2025: 6.8 µg/m³Dec

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

Monitors

StationOperatorType
伊勢原市田中３４８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 05:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.