Air quality in Kakegawa, Japan today

Mr. Duck’s Air Quality Score

Moderate air today for Kakegawa, 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 Kakegawa is currently classified as Moderate. The primary pollutant identified is PM2.5, with a measured concentration of 11.0 µg/m³ based on ten valid observations reported through OpenAQ.

These values reflect 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

The Kakegawa air‑quality feed currently provides data for six pollutants – carbon monoxide (CO), nitrogen oxide (NO), nitrogen dioxide (NO₂), total oxides of nitrogen (NOX), fine particulate matter (PM₂.5) and sulfur dioxide (SO₂). These measurements come from three monitoring stations, giving a total of fourteen recent rows in the dataset. All values were last refreshed on 2026‑02‑10 at 22:00 UTC, which falls within the “updated within 3 days” window for every pollutant, so the snapshot reflects conditions that are very current.

Across the three sites the observed concentrations show a modest spread. CO is reported as a single value of 0.2 ppm at the 下西郷‑112 address, while SO₂ registers consistently at 0.0 ppm at 長谷 1‑1‑１, indicating no detectable sulfur dioxide during the latest reading. The nitrogen oxides display low but variable levels: NO ranges from a minimum of 0.0 ppm to a maximum of 0.005 ppm (median 0.001 ppm) at the same 下西郷‑112 location; NO₂ varies between 0.004 and 0.02 ppm with a median of 0.008 ppm; and NOX spans 0.005 to 0.025 ppm, median 0.008 ppm. PM₂.5 shows the broadest range, from 9.0 µg/m³ up to 51.0 µg/m³, with a median of 11.0 µg/m³; the lowest reading comes from 三俣‑620 and the highest from the same site, illustrating that particulate concentrations can differ markedly even within a single neighborhood.

Because the dataset includes only three stations, spatial coverage is limited and conditions may vary in parts of Kakegawa not directly monitored. Nevertheless, the recent timestamps mean the available figures represent the city’s air quality at a specific point in time rather than historical averages.

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 ten valid measurements and was refreshed recently, having been updated within three days (last update: 2026‑02‑10 22:00 UTC). This snapshot provides a current view of Kakegawa’s air quality, but conditions can differ across neighborhoods and change throughout the day, so local variations may not be captured in this summary.

OpenAQ station rows