Air quality in Aomori, Japan today
Mr. Duck’s Air Quality Score
Good air today for Aomori, Japan
This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.
Air quality today
The air quality in Aomori is classified as Good today. The primary pollutant identified is PM2.5 (fine particles).
Measurements show a PM2.5 concentration of 9.0 µg/m³, based on four valid observations reported through OpenAQ. No PM10 value is available for this assessment. This page is informational; for health guidance, use official sources such as EPA AirNow or WHO.
Latest sensor values
PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).
What the data includes
The dataset for Aomori includes four measured pollutants – nitrogen monoxide (NO), nitrogen dioxide (NO₂), total nitrogen oxides (NOX) and fine particulate matter (PM2.5). Each pollutant is represented by a single monitoring row, all located at the same site in 青森市金沢１－６－１. Because there is only one sensor per pollutant, the coverage across the city is very limited; no additional stations are contributing data for these compounds.
All four rows were last updated on 2026-02-10 22:00 UTC, which falls within the “updated within three days” freshness bucket. This means the most recent measurements are current to a few days ago, but there are no older or unknown‑timestamp entries in the set. The values themselves show virtually no variability: NO is recorded at 0.001 ppm, NO₂ at 0.005 ppm, NOX at 0.006 ppm and PM2.5 at 9.0 µg/m³, with each pollutant’s minimum, median, maximum, 10th percentile and 90th percentile all identical to the single observed figure.
Because the dataset consists of a solitary observation for each pollutant, it provides only a snapshot rather than a range of conditions across different neighborhoods or times of day. The lack of multiple stations or repeated measurements means that while the data are fresh, they cannot capture spatial or temporal fluctuations that may occur elsewhere in Aomori. Users should keep in mind that city‑wide air quality can differ from this single point source, and additional monitoring would be needed for a fuller picture.
Learn more about sources and filtering: About the data.
Trusted references: WHO (Air pollution) · US EPA AirNow · European Environment Agency (Air)
Latest sensor values (bars)
PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).
Data notes
The data shown are based on four valid measurements and have been updated within three days, with the latest reading recorded at 2026‑02‑10 22:00 UTC. This snapshot reflects conditions at a specific time and location; air quality can vary across different neighborhoods and moments throughout Aomori, so values may differ from what you experience elsewhere in the city.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| 青森市金沢１－６－１ | no | 0.001 | ppm | 2026-02-10 22:00 UTC |
| 青森市金沢１－６－１ | no2 | 0.005 | ppm | 2026-02-10 22:00 UTC |
| 青森市金沢１－６－１ | nox | 0.006 | ppm | 2026-02-10 22:00 UTC |
| 青森市金沢１－６－１ | pm25 | 9.0 | µg/m³ | 2026-02-10 22:00 UTC |