Air quality in Iwata, Japan today
Mr. Duck’s Air Quality Score
Good air today for Iwata, 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 Iwata today is classified as Good. The primary pollutant measured is PM2.5, with a reference concentration of 4.0 µg/m³ reported from five valid observations. No PM10 value is available for this assessment.
Overall conditions meet the Good category criteria based on the data shown via OpenAQ. 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 Iwata air‑quality feed contains data for five pollutants – nitrogen monoxide (NO), nitrogen dioxide (NO₂), total nitrogen oxides (NOX), fine particulate matter (PM2.5) and sulfur dioxide (SO₂). All of these measurements come from a single monitoring location, identified as 磐田市国府台６－１, so the dataset represents one station row for each pollutant. The most recent reading for every parameter was recorded on 2026‑02‑10 at 22:00 UTC, and the OpenAQ source notes that this timestamp is “Updated within 3 days,” indicating a relatively fresh snapshot of conditions for the city.
Across the five pollutants the observed values are remarkably consistent. NO registers a concentration of 0.001 ppm, while NO₂ and NOX show 0.007 ppm and 0.008 ppm respectively; each of these three gases has identical minimum, median and maximum figures, meaning there is no spread in the reported data. PM2.5 is measured at 4.0 µg/m³, again with a single value representing the full range. SO₂ registers as 0.0 ppm, indicating that no detectable sulfur dioxide was present at the time of sampling. Because each pollutant’s dataset contains only one distinct measurement, statistical summaries such as percentiles or inter‑quartile ranges are not applicable – the median equals both the minimum and maximum for every parameter.
The limited spatial coverage (one monitoring site) means the figures reflect conditions at that specific address rather than citywide averages. While the timestamps are current, the lack of multiple stations restricts insight into how air quality may differ across other neighborhoods or over longer periods. Users should keep in mind that local variations can exist, and future updates with additional sites would provide a broader picture of Iwata’s atmospheric environment.
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 Iwata 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 this snapshot provides a reliable overview of current conditions, air quality can differ across neighborhoods and change throughout the day, so local variations may exist.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| 磐田市国府台６－１ | no | 0.001 | ppm | 2026-02-10 22:00 UTC |
| 磐田市国府台６－１ | no2 | 0.007 | ppm | 2026-02-10 22:00 UTC |
| 磐田市国府台６－１ | nox | 0.008 | ppm | 2026-02-10 22:00 UTC |
| 磐田市国府台６－１ | pm25 | 4.0 | µg/m³ | 2026-02-10 22:00 UTC |
| 磐田市国府台６－１ | so2 | 0.0 | ppm | 2026-02-10 22:00 UTC |