Air quality in Kashima, Japan today

Mr. Duck’s Air Quality Score

Good air today for Kashima, 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 Kashima is currently classified as Good. The primary pollutant identified is PM2.5, with a measured concentration of 9.0 µg/m³ based on ten valid observations from OpenAQ data.

Overall conditions meet the criteria for a Good rating, and the reported fine‑particle level reflects the latest available measurement set. 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

Kashima’s open‑air quality feed includes five measured pollutants – nitrogen monoxide (NO), nitrogen dioxide (NO₂), total nitrogen oxides (NOX), fine particulate matter (PM2.5) and sulfur dioxide (SO₂). The data set contains ten individual rows drawn from two monitoring stations, all of which report the same most recent timestamp of 2026‑02‑10 22:00 UTC, meaning every pollutant value is refreshed within the last three days.

The recorded concentrations show a very narrow spread. For NO the values range from zero to 0.001 ppm with a median of 0.0005 ppm; NO₂ and NOX both sit between 0.008 ppm and 0.012–0.013 ppm, each with a median just above 0.01 ppm. PM2.5 measurements are consistently low, ranging from 6 to 9 µg/m³ and centering on a median of 7.5 µg/m³. Sulfur dioxide registers at zero across all rows, indicating no detectable SO₂ during the reporting period.

Because the dataset is limited to two stations, spatial coverage within Kashima is modest; conditions can differ in neighborhoods that lie farther from these sites. Nevertheless, the timestamps are uniformly recent, so the figures reflect current ambient levels rather than historic or stale data. The pollutant set is complete for the five listed species, but the lack of variation—especially the uniform zero reading for SO₂ and the tight concentration ranges for the nitrogen oxides—suggests a relatively stable air quality snapshot at the time of measurement.

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 is updated within three days, with the most recent reading recorded on 2026‑02‑10 at 22:00 UTC. While this snapshot provides a reliable overview of current conditions in Kashima, air quality can differ across neighborhoods and change throughout the day, so local variations may exist.

OpenAQ station rows