Air quality in Hashimoto, Japan today
Mr. Duck’s Air Quality Score
Moderate air today for Hashimoto, 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 Hashimoto is currently classified as Moderate. The primary pollutant identified is PM2.5 (fine particles).
Measurements show a PM2.5 concentration of 11.0 µg/m³ based on five valid observations recorded by OpenAQ. 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 air‑quality record for Hashimoto includes five measured pollutants: nitrogen monoxide (NO), nitrogen dioxide (NO₂), total nitrogen oxides (NOX), fine particulate matter (PM2.5) and sulfur dioxide (SO₂). All data come from a single monitoring site at 橋本市市脇４丁目５番８号, so the city’s coverage is limited to one location rather than a network of stations.
The most recent readings were all logged on 2026‑02‑10 22:00 UTC, which falls within the “updated within three days” window and therefore represents very fresh information for each pollutant. For NO the dataset shows a constant value of 0.0 ppm, with the minimum, median and maximum all equal to zero, indicating no detectable concentration at this site during the reporting period. Both NO₂ and NOX are recorded at exactly 0.006 ppm; their statistical summaries (min, median, max, 10th‑percentile and 90th‑percentile) are identical, meaning there is no observed variation in these gases across the sampled time frame. PM2.5 registers a single value of 11.0 µg/m³, again with no spread between minimum and maximum, while SO₂ mirrors NO at 0.0 ppm throughout.
Because each pollutant has only one row of data from the same timestamp, there is no range or variability to describe beyond the uniform figures reported. This limited spatial and temporal sampling means that conditions elsewhere in Hashimoto could differ from those captured at this lone monitoring point, and any single‑day snapshot should be interpreted as a narrow view rather than a comprehensive citywide 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 current data for Hashimoto are based on five valid measurements and were refreshed recently, with the dataset marked as Updated within 3 days; the latest update was recorded at 2026‑02‑10T22:00:00+00:00. This snapshot reflects conditions at the time of sampling, but air quality 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 |
|---|---|---|---|---|
| 橋本市市脇４丁目５番８号 | no | 0.0 | ppm | 2026-02-10 22:00 UTC |
| 橋本市市脇４丁目５番８号 | no2 | 0.006 | ppm | 2026-02-10 22:00 UTC |
| 橋本市市脇４丁目５番８号 | nox | 0.006 | ppm | 2026-02-10 22:00 UTC |
| 橋本市市脇４丁目５番８号 | pm25 | 11.0 | µg/m³ | 2026-02-10 22:00 UTC |
| 橋本市市脇４丁目５番８号 | so2 | 0.0 | ppm | 2026-02-10 22:00 UTC |