Air quality in Ino, Japan today
Mr. Duck’s Air Quality Score
Good air today for Ino, 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 Ino today is classified as Good. The primary pollutant identified is PM2.5 (fine particles).
Measurements show a PM2.5 concentration of 5.0 µg/m³, based on five valid observations recorded by OpenAQ. This indicates that particulate levels are within the reference range for this category. 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 Ino contains five measured pollutants – nitrogen monoxide (NO), nitrogen dioxide (NO₂), total oxides of nitrogen (NOX), fine particulate matter (PM2.5) and sulfur dioxide (SO₂). All values come from a single monitoring site located at 吾川郡いの町１３８１, so the coverage is limited to one geographic point rather than a network across the city. Each pollutant has exactly one recent record; the most recent timestamp for every measurement is 2026‑02‑10 22:00 UTC, which falls within the “updated within three days” freshness window.
The reported concentrations are remarkably consistent because the minimum, median and maximum values are identical for each pollutant. NO registers at 0.001 ppm, NO₂ at 0.003 ppm, NOX at 0.004 ppm and SO₂ at 0.0 ppm, while PM2.5 is measured at 5.0 µg/m³. This lack of spread indicates that the data set captures a single snapshot rather than a range of conditions over time. Because only one station contributes data, there is no variation to show how pollutant levels might differ across neighborhoods or during different parts of the day.
In practical terms, the information available for Ino provides a very narrow view: five pollutants from one location, all recorded at the same recent moment, with no historical depth or spatial diversity. Consequently, while the numbers give an exact picture of that specific time and place, they do not reflect broader city‑wide air quality patterns that can change with weather, traffic or industrial activity.
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 current dataset for Ino includes five valid measurements and was refreshed recently, with the latest update recorded on 2026‑02‑10 at 22:00 UTC; it is therefore considered “Updated within 3 days.” While these figures give a reliable snapshot of overall conditions, air quality can differ across neighborhoods and change throughout the day, so local variations may not be fully captured in this summary.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| 吾川郡いの町１３８１ | no | 0.001 | ppm | 2026-02-10 22:00 UTC |
| 吾川郡いの町１３８１ | no2 | 0.003 | ppm | 2026-02-10 22:00 UTC |
| 吾川郡いの町１３８１ | nox | 0.004 | ppm | 2026-02-10 22:00 UTC |
| 吾川郡いの町１３８１ | pm25 | 5.0 | µg/m³ | 2026-02-10 22:00 UTC |
| 吾川郡いの町１３８１ | so2 | 0.0 | ppm | 2026-02-10 22:00 UTC |