Air quality in Kasugai, Japan today
Mr. Duck’s Air Quality Score
Good air today for Kasugai, Japan
This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.
Air quality today
The air quality in Kasugai is currently classified as Good. The primary pollutant identified is PM2.5 (fine particles), with a measured concentration of 9.0 µg/m³ based on four valid observations reported through OpenAQ.
These measurements indicate that the particulate matter levels are within the range associated with the Good category. 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 Kasugai dataset currently contains measurements for four pollutants – nitrogen monoxide (NO), nitrogen dioxide (NO₂), total nitrogen oxides (NOX) and fine particulate matter (PM2.5). All of these values come from a single monitoring location at 春日井市若草通2丁目１－１, so the city’s coverage is limited to one station row for each pollutant.
The most recent readings were recorded on 2026‑02‑10 at 22:00 UTC and are still within the “updated within three days” freshness window. For NO the observed concentration is a constant 0.012 ppm, for NO₂ it is 0.020 ppm, for NOX it is 0.032 ppm and for PM2.5 the level is 9.0 µg/m³. Each pollutant shows identical minimum, median and maximum values, indicating that only a single data point is available rather than a range of observations over time.
Because the dataset consists of just one row per pollutant, there is no variability to describe; the spread (p10‑p90) is zero for all four substances. This lack of multiple measurements means the current snapshot cannot capture fluctuations that may occur across different parts of Kasugai or at other times of day. Users should keep in mind that air quality can differ by location and moment, and the present figures represent only the most recent reading from a single site.
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 figures are based on four valid measurements and were updated within 3 days, with the latest data recorded at 2026‑02‑10T22:00:00+00:00. These values represent a snapshot of conditions across Kasugai; air quality can differ by specific location and time of day within the city, so individual experiences may vary from the reported averages.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| 春日井市若草通2丁目１－１ | no | 0.012 | ppm | 2026-02-10 22:00 UTC |
| 春日井市若草通2丁目１－１ | no2 | 0.02 | ppm | 2026-02-10 22:00 UTC |
| 春日井市若草通2丁目１－１ | nox | 0.032 | ppm | 2026-02-10 22:00 UTC |
| 春日井市若草通2丁目１－１ | pm25 | 9.0 | µg/m³ | 2026-02-10 22:00 UTC |