Air quality in Atsugi, Japan today
Mr. Duck’s Air Quality Score
Good air today for Atsugi, 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 Atsugi is rated as Good today. The primary pollutant identified is PM2.5, with a measured concentration of 5.0 µg/m³. Five valid measurements contributed to this assessment, and no PM10 value is available.
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
Atsugi’s open‑air quality feed currently includes five measured pollutants – nitrogen monoxide (NO), nitrogen dioxide (NO₂), total nitrogen oxides (NOX), fine particulate matter (PM2.5) and sulfur dioxide (SO₂). The dataset draws from ten recent rows of sensor readings collected at three distinct monitoring sites across the city, giving a modest spatial snapshot of conditions.
The freshest data were recorded on 2026‑02‑10 at 22:00 UTC for PM2.5, NO, NO₂ and NOX, meaning those four pollutants have been updated within the last three days. At that time PM2.5 values ranged from a low of 3.0 µg/m³ to a high of 11.0 µg/m³, with a median of 5.0 µg/m³ and the middle‑90 % of observations falling between about 3.4 and 9.8 µg/m³. NO measurements were tightly clustered around 0.01 ppm (minimum 0.01, maximum 0.011, median roughly 0.0105) and showed a similar narrow spread for NO₂ (0.013–0.019 ppm, median 0.016) and NOX (0.023–0.030 ppm, median 0.0265). By contrast, the sole SO₂ reading comes from an older record dated 2025‑11‑05 at 02:00 UTC, reporting a single value of 0.003 ppm; no recent updates are available for this pollutant.
Overall the dataset provides recent coverage for four of the five pollutants but leaves SO₂ under‑represented and somewhat outdated. The three monitoring locations supply a limited geographic picture, so conditions can differ across neighborhoods and times not captured by these rows. Users should keep in mind that while the latest figures give a clear sense of current ranges for PM2.5, NO, NO₂ and NOX, the lack of fresh SO₂ data means its present state in Atsugi remains uncertain.
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 Atsugi reflects five valid measurements and was refreshed recently, with the latest update recorded on 2026‑02‑10 at 22:00 UTC; it is considered “Updated within 3 days.” While these figures give a current snapshot of citywide air quality, conditions can differ across neighborhoods and change throughout the day, so local variations may exist.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| 厚木市中町１－８－１１ | no | 0.011 | ppm | 2025-11-05 02:00 UTC |
| 厚木市中町１－８－１１ | no2 | 0.019 | ppm | 2025-11-05 02:00 UTC |
| 厚木市中町１－８－１１ | nox | 0.03 | ppm | 2025-11-05 02:00 UTC |
| 厚木市中町１－８－１１ | pm25 | 11.0 | µg/m³ | 2025-11-05 04:00 UTC |
| 厚木市中町１－８－１１ | so2 | 0.003 | ppm | 2025-11-05 02:00 UTC |
| 厚木市水引２－３－１ | pm25 | 3.0 | µg/m³ | 2026-02-10 22:00 UTC |
| 厚木市金田１７２ | no | 0.01 | ppm | 2026-02-10 22:00 UTC |
| 厚木市金田１７２ | no2 | 0.013 | ppm | 2026-02-10 22:00 UTC |
| 厚木市金田１７２ | nox | 0.023 | ppm | 2026-02-10 22:00 UTC |
| 厚木市金田１７２ | pm25 | 5.0 | µg/m³ | 2026-02-10 22:00 UTC |