Air quality in Kawasaki, Japan today

Mr. Duck’s Air Quality Score

Moderate air today for Kawasaki, 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 Kawasaki is currently classified as Moderate. The primary pollutant identified is PM2.5 (fine particles), with a measured concentration of 15.0 µg/m³. Data are based on 72 valid measurements collected through OpenAQ.

This assessment reflects the latest available information for Kawasaki and does not include forecasts or trend analysis. 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 Kawasaki data set 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). In total there are 19 monitoring stations contributing rows to the record, with a combined 90 recent observations across all pollutants. Freshness varies by compound: the most recent timestamps for NO, NO₂, NOX, PM2.5 and SO₂ were recorded on 2026‑02‑10 at 22:00 UTC, while CO’s latest reading comes from the same moment but originates from a different site in Kawasaki‑ku. All six pollutants have at least one observation updated within the last three days, so the dataset reflects current conditions rather than historic archives.

Across the city the concentration ranges differ markedly. NO values span from 0.000 to 0.027 ppm with a median of 0.002 ppm, while NO₂ shows a tighter band between 0.008 and 0.027 ppm (median 0.022 ppm). NOX is slightly higher overall, ranging from 0.009 to 0.051 ppm and centering around 0.024 ppm. PM2.5 measurements are expressed in micrograms per cubic metre and vary between 3 and 15 µg/m³, with a typical value of 7 µg/m³. SO₂ is essentially absent, recorded at 0 ppm across its ten contributing stations, and CO registers only low‑level readings, from 0 to 0.3 ppm with a median of 0.1 ppm.

The coverage is uneven: while NO, NO₂, NOX and PM2.5 each have data from all 19 stations, SO₂ is reported by just ten sites and CO by only four. This disparity means that city‑wide averages for the latter two pollutants rely on a more limited spatial sample, so conditions may differ in areas without a sensor.

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 Kawasaki includes 72 valid measurements and is refreshed Updated within 3 days; the latest values were recorded at 2026‑02‑10T22:00:00+00:00. This snapshot reflects conditions at a single point in time and may not represent variations across different neighborhoods or times of day within the city, so local air quality can differ from what is shown here.

OpenAQ station rows