Air quality in Yeongcheon-si, South Korea today

Mr. Duck’s Air Quality Score

Moderate air today for Yeongcheon-si, 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 Yeongcheon‑si is currently assessed as Moderate. The primary pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 concentration of 25.0 µg/m³ and a PM10 level of 34.0 µg/m³, based on twelve valid observations recorded by OpenAQ.

These values reflect the present conditions without implying any trend or cause. 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 air‑quality feed for Yeongcheon‑si currently draws from two monitoring stations, each providing a full set of six pollutants: carbon monoxide (CO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter ≤ 10 µm (PM10), particulate matter ≤ 2.5 µm (PM2.5) and sulfur dioxide (SO₂). All twelve rows of data were last refreshed on 2026‑02‑10 at 17:00 UTC, so the most recent observations are less than a week old.

Across the two sites the recorded values show modest variation. CO ranges from 0.27 to 0.29 ppm with a median of 0.28 ppm; NO₂ spans 0.0063‑0.0077 ppm (median 0.007 ppm); O₃ is between 0.0369 and 0.0391 ppm (median 0.038 ppm). The particulate measurements are similarly tight: PM10 varies from 24 to 34 µg/m³ (median 29 µg/m³) and PM2.5 from 24 to 25 µg/m³ (median 24.5 µg/m³). SO₂ is the lowest‑concentration gas, recorded between 0.0012 and 0.0027 ppm (median 0.00195 ppm).

Because every pollutant has data from both stations, coverage is uniform across the suite of measurements, but the numeric spread is narrow, indicating that recent readings are clustered around their median values rather than showing wide swings. The freshness flag shows all twelve rows updated within seven days, so the dataset reflects current conditions rather than historic or missing entries. Nonetheless, with only two locations feeding the system, city‑wide variation may not be captured; air quality can differ in other neighborhoods or at times outside the latest timestamp.

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 dataset for Yeongcheon‑si includes twelve valid measurements and is refreshed regularly, having been updated within three days (last update: 2026‑02‑10T17:00:00+00:00). While these figures provide a reliable snapshot of current conditions, air quality can differ across neighborhoods and change throughout the day, so local variations may exist.

OpenAQ station rows