Air quality in Fujieda, Japan today

Mr. Duck’s Air Quality Score

Moderate air today for Fujieda, 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 Fujieda today falls into the Moderate category according to OpenAQ data. The primary pollutant identified is PM2.5 (fine particles). Recent measurements show a PM2.5 concentration of 13.0 µg/m³, based on eight valid readings collected for this assessment.

This information reflects the current monitoring snapshot and does not imply any change over time. 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

Fujieda’s open‑air quality feed includes six measured pollutants – carbon monoxide (CO), nitrogen oxide (NO), nitrogen dioxide (NO₂), total nitrogen oxides (NOX), fine particulate matter (PM2.5) and sulfur dioxide (SO₂). The dataset contains 11 individual rows drawn from two monitoring stations, so each pollutant is represented by at most one or two recent observations.

All values were last updated on 2026‑02‑10 22:00 UTC, which falls within the “updated within three days” window and therefore reflects the current conditions for the city. CO is reported at a single value of 0.2 ppm, while NO ranges from a minimum of 0.0 ppm to a maximum of 0.001 ppm, with a median of 0.0005 ppm. NO₂ shows a slightly broader spread, ranging between 0.007 and 0.014 ppm (median 0.0105 ppm), and the combined NOX values vary from 0.007 to 0.015 ppm (median 0.011 ppm). PM2.5 concentrations are measured in micrograms per cubic metre, ranging from 7.0 to 13.0 µg/m³ with a median of 10.0 µg/m³. SO₂ is consistently recorded as 0.0 ppm across the single observation.

The data set highlights uneven coverage: CO, NO, NO₂, NOX and PM2.5 each have two recent rows, whereas SO₂ appears in only one row. Despite the limited number of stations, the timestamps are uniformly fresh, but the small sample size means city‑wide conditions could differ across neighborhoods or times not captured by these points.

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 Fujieda are based on eight valid measurements and were updated within three days, with the latest refresh recorded at 2026‑02‑10 22:00 UTC. This snapshot reflects conditions at the time of sampling; air quality can vary across different neighborhoods and times of day within the city, so values may differ from what you experience locally.

OpenAQ station rows