Air quality in Tongyeong-si, South Korea today
Mr. Duck’s Air Quality Score
Moderate air today for Tongyeong-si, South Korea
This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.
Air quality today
The air quality today in Tongyeong‑si is classified as Moderate. The primary pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 concentration of 21.0 µg/m³ and a PM10 concentration also at 21.0 µg/m³, based on six valid observations collected via OpenAQ.
These values reflect the current assessment for the city without additional interpretation. 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 dataset for Tongyeong‑si includes six individual measurement rows, each reporting the full set of six common air‑quality pollutants: carbon monoxide (CO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter 10 µm or smaller (PM10), particulate matter 2.5 µm or smaller (PM2.5) and sulfur dioxide (SO₂). All rows are tied to the same monitoring location, identified as 무전동, and every record was last updated on 2026‑02‑10 at 18:00 UTC, placing each entry well within the past seven days. This means the data reflect a very recent snapshot of conditions across the city rather than historic or stale values.
Because each pollutant appears in exactly the same six rows, coverage is uniform: there are no gaps where a particular gas or particle type is missing. The reported figures show no variation among the rows – the minimum, median and maximum values are identical for every substance. CO registers at 0.28 ppm, NO₂ at 0.0123 ppm, O₃ at 0.0254 ppm, PM10 and PM2.5 both sit at 21.0 µg/m³, and SO₂ measures 0.0031 ppm. With a single observed value per pollutant, the dataset does not provide a spread or trend but gives a clear point‑in‑time reference for each component of the local air mix.
Overall, the data set is concise: six recent observations from one site covering all six pollutants, with no older or unknown timestamps to dilute the freshness. While this offers an up‑to‑date picture of Tongyeong‑si’s air quality at a specific moment, it also means that spatial and temporal variability within the city cannot be assessed from these numbers alone. Users should keep in mind that conditions can differ across neighborhoods and over time, even though the current snapshot is fully current.
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 six valid measurements and was refreshed recently, with the latest update recorded on 2026‑02‑10 at 18:00 UTC; it is considered “Updated within 3 days.” This snapshot provides a current view of Tongyeong‑si’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
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| 무전동 | co | 0.28 | ppm | 2026-02-10 18:00 UTC |
| 무전동 | no2 | 0.0123 | ppm | 2026-02-10 18:00 UTC |
| 무전동 | o3 | 0.0254 | ppm | 2026-02-10 18:00 UTC |
| 무전동 | pm10 | 21.0 | µg/m³ | 2026-02-10 18:00 UTC |
| 무전동 | pm25 | 21.0 | µg/m³ | 2026-02-10 18:00 UTC |
| 무전동 | so2 | 0.0031 | ppm | 2026-02-10 18:00 UTC |