Air quality in Gero, Japan today
Mr. Duck’s Air Quality Score
Moderate air today for Gero, 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 Gero today falls into the Moderate category. The primary pollutant identified is PM2.5 (fine particles), with a measured concentration of 13.0 µg/m³ based on five valid observations.
Data are shown via OpenAQ and reflect the current monitoring results for this location. 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 Gero includes five measured pollutants – nitrogen monoxide (NO), nitrogen dioxide (NO2), combined nitrogen oxides (NOX), fine particulate matter (PM2.5) and sulfur dioxide (SO2). All of these are reported from a single monitoring location at 下呂市萩原町羽根２６０５－１, so the city’s air‑quality picture is based on one station rather than a network.
The most recent readings for each pollutant were recorded on 2026-02-10 22:00 UTC, which is within three days of today (2026-02-13). This means the data are currently fresh. For NO and SO2 the values are consistently zero across the record (minimum, median and maximum all 0.0 ppm). NO2 and NOX each show a single value of 0.004 ppm, again with no variation between minimum, median and maximum. PM2.5 is reported as 13.0 µg/m³, also without any spread in the data.
Because there is only one row per pollutant, the statistical spread is effectively nil – the dataset does not capture variability over time or across different parts of Gero. The uniform timestamps indicate that all pollutants were last updated at the same moment, so there are no older or unknown‑age entries to flag. While the measurements are up‑to‑date, the limited spatial coverage means conditions elsewhere in the city could differ from what this single sensor records.
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 marked as Updated within 3 days, with the most recent reading recorded on 2026‑02‑10 at 22:00 UTC. This snapshot provides a brief overview of current conditions; however, air quality can differ across neighborhoods and change throughout the day, so values may not represent every location or moment in Gero.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| 下呂市萩原町羽根２６０５－１ | no | 0.0 | ppm | 2026-02-10 22:00 UTC |
| 下呂市萩原町羽根２６０５－１ | no2 | 0.004 | ppm | 2026-02-10 22:00 UTC |
| 下呂市萩原町羽根２６０５－１ | nox | 0.004 | ppm | 2026-02-10 22:00 UTC |
| 下呂市萩原町羽根２６０５－１ | pm25 | 13.0 | µg/m³ | 2026-02-10 22:00 UTC |
| 下呂市萩原町羽根２６０５－１ | so2 | 0.0 | ppm | 2026-02-10 22:00 UTC |