Air quality in Higashimatsushima, Japan today
Mr. Duck’s Air Quality Score
Good air today for Higashimatsushima, 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 Higashimatsushima is classified as Good today. The primary pollutant identified is PM2.5, with a measured concentration of 9.0 µg/m³ based on four valid observations reported through OpenAQ.
These data indicate that fine 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 Higashimatsushima includes four measured pollutants – nitrogen monoxide (NO), nitrogen dioxide (NO₂), total nitrogen oxides (NOX) and fine particulate matter (PM2.5). All of these are reported from a single monitoring location identified as 東松島市矢本字町裏１５４, so the city’s air‑quality picture is based on one measurement row rather than a network of stations.
The most recent data were uploaded on 2026-02-10 22:00 UTC, which falls within the “updated within three days” freshness window. For each pollutant the recorded values are identical across the minimum, median and maximum statistics, indicating no observed variation during the reporting period. NO is consistently reported as 0.0 ppm, while both NO₂ and NOX show a steady concentration of 0.006 ppm. PM2.5 registers a uniform level of 9.0 µg/m³. Because there is only one data point per pollutant, the inter‑percentile ranges (10th to 90th) are also flat, matching the single reported value.
With just one active sensor, the coverage for Higashimatsushima is limited; any spatial differences in air quality across neighborhoods cannot be captured by this dataset. The timestamps suggest that the information is relatively fresh, but the lack of multiple rows means there is no historical depth to assess how conditions change over days or weeks. Consequently, while the current snapshot provides exact concentrations for the four pollutants at a specific site and time, it does not reflect broader city‑wide variations that may exist.
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 four valid measurements and was updated within three days, with the most recent reading recorded at 2026‑02‑10 22:00 UTC. These values represent a snapshot of conditions across Higashimatsushima; air quality can differ by specific location and time of day within the city, so individual experiences may vary from the reported figures.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| 東松島市矢本字町裏１５４ | no | 0.0 | ppm | 2026-02-10 22:00 UTC |
| 東松島市矢本字町裏１５４ | no2 | 0.006 | ppm | 2026-02-10 22:00 UTC |
| 東松島市矢本字町裏１５４ | nox | 0.006 | ppm | 2026-02-10 22:00 UTC |
| 東松島市矢本字町裏１５４ | pm25 | 9.0 | µg/m³ | 2026-02-10 22:00 UTC |