Air quality in Seocheon-gun, South Korea today

Mr. Duck’s Air Quality Score

Unhealthy air today for Seocheon-gun, South Korea

⚠️ 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 Seocheon‑gun is currently classified as Unhealthy. The primary pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 concentration of 65.0 µg/m³ and a concurrent PM10 level of 63.0 µg/m³, based on 24 valid observations collected through OpenAQ.

These values reflect the present conditions without reference to trends or forecasts. 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 Seocheon‑gun contains measurements of six common air‑quality constituents – 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 values come from four monitoring stations that have reported at least one of these pollutants within the last 30 days, giving a total of thirty recent records across the city.

Each pollutant shows a different range of observed concentrations. CO is recorded as low as 0.39 ppm and as high as an extreme 9 999 ppm, with the median value around 0.70 ppm; the most recent reading at the 서면 site was 0.57 ppm on 2026‑02‑10 18:00 UTC. NO₂ spans from a minimum of 0.0094 ppm to the same upper placeholder limit, with a median near 0.0198 ppm and the latest 서면 value also at 0.0094 ppm for the same timestamp. O₃ ranges between 0.0067 ppm and 9 999 ppm, median 0.0165 ppm, and the newest 서면 measurement was 0.0196 ppm. PM10 values start at 48 µg/m³ and rise to the placeholder maximum, with a typical (median) level of 63 µg/m³; the most recent 서면 reading was exactly 48 µg/m³. PM2.5 shows a minimum of 27 µg/m³, median 43 µg/m³, and the latest 서면 value was 27 µg/m³. SO₂ ranges from 0.0013 ppm to the placeholder ceiling, median 0.0034 ppm, with the newest 서면 measurement at 0.0032 ppm.

The freshness of the data is fairly uniform: every pollutant’s latest entry comes from the same update time (2026‑02‑10 18:00 UTC), meaning all six substances have been reported within the past week. However, twenty‑four of the thirty recent rows are less than seven days old, while six records are older than that window, indicating that a small portion of the city’s monitoring may be lagging behind. Because the dataset relies on a limited number of stations, conditions can differ across neighborhoods and times not captured by these snapshots.

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 set for Seocheon‑gun includes 24 valid measurements and is updated within 3 days, with the most recent values recorded at 2026‑02‑10T18:00:00+00:00. These figures represent a snapshot of current conditions; air quality can differ across neighborhoods and change throughout the day, so local variations may not be reflected in this summary.

OpenAQ station rows