Air quality in Imizu, Japan today

Mr. Duck’s Air Quality Score

Moderate air today for Imizu, 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 Imizu is currently classified as Moderate. The main pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 concentration of 10.0 µg/m³, based on ten valid observations collected via OpenAQ.

Data indicate that the current conditions fall within the Moderate category 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 Imizu data set pulls from two monitoring sites and contains ten recent measurement rows covering five key pollutants – nitrogen monoxide (NO), nitrogen dioxide (NO2), total nitrogen oxides (NOX), fine particulate matter (PM2.5) and sulfur dioxide (SO2). All values were last refreshed on 2026-02-10 at 22:00 UTC, which the source flags as “updated within 3 days,” so the snapshot reflects conditions from only a few days ago.

Across the ten rows NO concentrations range from a minimum of 0.0 ppm to a maximum of 0.002 ppm, with a median of 0.001 ppm; NO2 and NOX show very similar behaviour, each spanning roughly 0.008–0.017 ppm (NO2) and 0.008–0.019 ppm (NOX) with medians around 0.0125 ppm and 0.0135 ppm respectively. PM2.5 values are expressed in micrograms per cubic metre, varying between 4.0 µg/m³ and 10.0 µg/m³, the middle of the distribution sitting at about 7.0 µg/m³. Sulfur dioxide registers uniformly at 0.0 ppm for every row, indicating no detectable SO2 during the reporting period.

The dataset is fairly compact – only two stations contribute data, so spatial coverage within Imizu is limited and conditions can differ in parts of the city not directly sampled. Nevertheless, each pollutant has a recent timestamp, meaning there are no stale or unknown‑age entries. The spread of values is modest for all gases, with the 10th to 90th percentile bands tightly clustered (e.g., NO2 p10 0.0089 ppm to p90 0.0161 ppm), while PM2.5 shows a slightly broader range but still stays within single‑digit microgram levels. This snapshot therefore offers a current, though geographically narrow, picture of Imizu’s air quality across the measured pollutants.

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 dataset for Imizu includes ten valid measurements and is updated within 3 days, with the most recent data recorded on 2026‑02‑10 at 22:00 UTC. This snapshot reflects conditions measured at specific monitoring points and times; air quality can differ across neighborhoods and throughout the day, so values shown may not represent every location or moment in the city.

OpenAQ station rows