Air quality in Samcheok-si, South Korea today

Mr. Duck’s Air Quality Score

Moderate air today for Samcheok-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 Samcheok‑si is currently classified as Moderate. The primary pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 reference value of 16.0 and a PM10 reference value of 26.0, based on 17 valid observations.

Data are 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 Samcheok‑si dataset contains six measured pollutants – carbon monoxide (CO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter 10 µm or less (PM10), particulate matter 2.5 µm or less (PM2.5) and sulfur dioxide (SO₂). All values come from three monitoring stations, giving a total of 24 individual rows of data. The most recent update for every pollutant was recorded on 2026‑02‑10 at 18:00 UTC, so the newest timestamps are just a few days old.

Across the pollutants the observed ranges are fairly narrow for gases but much broader for particulates. CO values span from 0.27 ppm to 0.42 ppm with a median of 0.345 ppm; NO₂ runs between 0.0069 ppm and 0.0113 ppm (median 0.01055 ppm); O₃ varies from 0.0262 ppm up to 0.0501 ppm (median 0.0403 ppm). PM10 shows a tighter spread, ranging from 16 µg/m³ to 33 µg/m³ with a median of 22 µg/m³, while PM2.5 has an extreme upper bound of 9 999 µg/m³ and a 90th‑percentile near 7 004 µg/m³, indicating occasional outlier readings. SO₂ is the least variable, ranging from 0.0021 ppm to 0.0032 ppm (median 0.0028 ppm).

In terms of data freshness, 18 of the 24 rows were updated within the last seven days, while six rows are older than that period and none are marked as “today” or “unknown.” This mix means most recent conditions are captured, but a minority of records may not reflect current air quality. Because the dataset relies on three stations, spatial variation across Samcheok‑si can be significant; measurements represent specific sites rather than citywide averages.

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 Samcheok‑si is based on 17 valid measurements and was refreshed within the past three days, with the latest update recorded at 2026‑02‑10T18:00:00+00:00. This snapshot reflects conditions measured at specific monitoring points; air quality can differ across neighborhoods and change throughout the day, so values may not represent every location or moment in the city.

OpenAQ station rows