Air quality in Fukuyama, Japan today

Mr. Duck’s Air Quality Score

Moderate air today for Fukuyama, 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 Fukuyama is currently classified as Moderate. The primary pollutant identified is PM2.5 (fine particles), with a measured concentration of 33.0 µg/m³ based on 28 valid observations reported through OpenAQ.

This assessment reflects the latest available data for the city. 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

Fukuyama’s OpenAQ feed currently provides data for 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 comprises 28 recent rows spread across six monitoring stations, meaning each station contributes roughly four to five observations on average. All pollutants have at least one recent reading recorded within the last three days, with the newest timestamp for every parameter logged on 2026-02-10 22:00 UTC.

The concentration ranges differ markedly among the gases. NO shows values from essentially zero up to 0.004 ppm, with a median of 0.0005 ppm; NO₂ and NOX are higher, spanning 0.007–0.019 ppm (median 0.013 ppm) and 0.007–0.023 ppm (median 0.014 ppm) respectively. CO is represented by a single recent measurement of 0.5 ppm at the East Sakura‑cho site, while SO₂ appears only at three stations with values fixed at 0.001 ppm across the board. PM2.5 exhibits the broadest spread, ranging from 7 to 33 µg/m³ and a median of 25.5 µg/m³; the 10th‑percentile sits at 9 µg/m³ and the 90th‑percentile at 31.5 µg/m³, indicating notable variability within the city.

Coverage is uneven: CO and SO₂ are reported from just one and three stations respectively, whereas NO, NO₂, NOX and PM2.5 have data from all six locations. Although every pollutant has a recent entry, the limited number of observations for some gases means that short‑term fluctuations may not be fully captured. Consequently, while the dataset offers a snapshot of current air quality in Fukuyama, conditions can still differ across neighborhoods and over time.

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 for Fukuyama is based on 28 valid measurements and was refreshed recently, Updated within 3 days (last update: 2026‑02‑10T22:00:00+00:00). This snapshot reflects conditions at the time of collection; air quality can vary by location and time within the city, so values may differ across neighborhoods or later in the day.

OpenAQ station rows