Air quality in Hakusan, Japan today

Mr. Duck’s Air Quality Score

Good air today for Hakusan, 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 Hakusan is classified as Good today. The primary pollutant identified is PM2.5 (fine particles).

Measurements show a PM2.5 concentration of 4.0 µg/m³ based on six valid readings collected via 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 dataset for Hakusan contains six individual measurement rows, each reporting values for carbon monoxide (CO), nitrogen oxide (NO), nitrogen dioxide (NO₂), total nitrogen oxides (NOX), fine particulate matter (PM2.5) and sulfur dioxide (SO₂). All six rows are from the same monitoring site at 白山市馬場２－７, and every pollutant has a most‑recent timestamp of 2026-02-10 22:00 UTC, which falls within the “updated within three days” window, indicating that the data are currently fresh.

Across the six records the observed concentrations are remarkably consistent. CO is recorded at 0.2 ppm in every row, while NO registers a uniform 0.0 ppm and both NO₂ and NOX show identical values of 0.008 ppm. PM2.5 is measured at 4.0 µg/m³ for each entry, and SO₂ also reads 0.0 ppm throughout. Because the minimum, median and maximum are the same for every pollutant, there is no detectable spread in the reported values; the dataset essentially reflects a single snapshot rather than a range of conditions.

The coverage is limited to one location, so spatial variation within Hakusan cannot be assessed from this source. Although the timestamps are recent, the lack of multiple stations means that temporal changes or localized hotspots may not be captured. Users should keep in mind that air quality can differ across neighborhoods and times of day, and the present data represent only the conditions measured at 白山市馬場２－７ on 2026‑02‑10 at 22:00 UTC.

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 six valid measurements and is updated within 3 days, with the most recent reading recorded on 2026‑02‑10 at 22:00 UTC. While these values provide a current overview of Hakusan’s air quality, conditions can differ across neighborhoods and change throughout the day, so local variations may exist beyond what this snapshot captures.

OpenAQ station rows