Air quality in Matsushima, Japan today

Mr. Duck’s Air Quality Score

Good air today for Matsushima, Japan

⚠️ This website is currently under active development. Some data may be incomplete or temporarily inaccurate. For health-critical decisions, please verify information through official government or environmental sources.

Categories follow US EPA AQI breakpoints for PM (estimate from latest valid measurements; this project does not compute EPA NowCast/24-hour AQI yet).

This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.

Air quality today

The air quality in Matsushima is classified as Good today, with PM2.5 identified as the primary pollutant.

Measurements from four monitoring stations show a PM2.5 concentration of 6.0 µg/m³. Data are displayed via OpenAQ and reflect the latest available readings 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

Matsushima’s OpenAQ feed currently provides data from a single monitoring site located at 宮城郡松島町高城字迎山３－５. The dataset contains four pollutant measurements – nitrogen monoxide (NO), nitrogen dioxide (NO₂), total nitrogen oxides (NOX) and fine particulate matter (PM2.5). Each pollutant is represented by one row, so the overall coverage consists of four rows across one station.

All four readings were last refreshed on 2026-02-10 22:00 UTC, which falls within the “updated within 3 days” freshness bucket, indicating that the most recent values are very current. The reported concentrations show no variability in this snapshot: NO is recorded at 0.001 ppm, NO₂ at 0.01 ppm, NOX at 0.011 ppm and PM2.5 at 6.0 µg/m³, with the minimum, median and maximum values identical for each pollutant. Because there is only one measurement per pollutant, the dataset does not reveal any spread or temporal trend beyond this single point in time.

Given that the city’s air‑quality picture here relies on a solitary monitoring location, conditions elsewhere in Matsushima may differ from what these numbers represent. The data set is fresh but limited in spatial coverage and depth; there are no older or unknown timestamps to compare against, and the lack of multiple stations means the current snapshot cannot capture intra‑city variations.

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 3 days, with the latest reading recorded on 2026‑02‑10 at 22:00 UTC. This snapshot provides a current view of air quality in Matsushima, but conditions can differ across neighborhoods and change throughout the day, so local variations may not be captured by these figures.

OpenAQ station rows