Air quality in Inzai, Japan today
Mr. Duck’s Air Quality Score
Good air today for Inzai, 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 Inzai is classified as Good today. The primary pollutant identified is PM2.5, with a measured concentration of 8.0 µg/m³ based on five valid observations reported through OpenAQ.
Overall conditions meet the criteria for a Good rating, and no additional pollutants are highlighted at this time. 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 Inzai currently draws from a single monitoring site located at 印西市高花１－３, so the city’s air‑quality picture is based on one set of measurements rather than a network of stations. All five pollutants tracked by OpenAQ – nitrogen monoxide (NO), nitrogen dioxide (NO₂), total nitrogen oxides (NOX), fine particulate matter (PM2.5) and sulfur dioxide (SO₂) – are present in the feed, each reported with its own unit of measurement.
The most recent values were recorded on 2026‑02‑10 at 22:00 UTC, which is just three days old relative to today’s date (2026‑02‑13). This “updated within 3 days” status applies uniformly across every pollutant, indicating that the data are fresh but also that no newer observations have been uploaded since that timestamp. For each compound the recorded range is extremely narrow: NO sits at 0.001 ppm, NO₂ at 0.009 ppm, NOX at 0.010 ppm, PM2.5 at 8.0 µg/m³ and SO₂ registers a value of 0.0 ppm. Because the minimum, median and maximum are identical for every pollutant, there is no observed variability in this snapshot.
With only one reporting location, the dataset cannot capture spatial differences that may exist across Inzai, and the single‑day snapshot does not reveal any temporal trends. Users should keep in mind that conditions can differ by neighborhood or time of day, and that additional measurements would be needed to build a more comprehensive view of the city’s air quality.
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 reflects five valid measurements and is updated within three days, with the most recent reading recorded at 2026‑02‑10T22:00:00+00:00. While this provides a current snapshot of Inzai’s air quality, conditions can differ across neighborhoods and change throughout the day, so values may not represent every location or moment in the city.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| 印西市高花１－３ | no | 0.001 | ppm | 2026-02-10 22:00 UTC |
| 印西市高花１－３ | no2 | 0.009 | ppm | 2026-02-10 22:00 UTC |
| 印西市高花１－３ | nox | 0.01 | ppm | 2026-02-10 22:00 UTC |
| 印西市高花１－３ | pm25 | 8.0 | µg/m³ | 2026-02-10 22:00 UTC |
| 印西市高花１－３ | so2 | 0.0 | ppm | 2026-02-10 22:00 UTC |