Air quality in Sacheon-si, South Korea today

Mr. Duck’s Air Quality Score

Moderate air today for Sacheon-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 Sacheon‑si is currently classified as Moderate. The primary pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 concentration of 26.0 µg/m³ and a PM10 level of 33.0 µg/m³, based on twelve valid observations reported through OpenAQ.

These values reflect the present monitoring snapshot for the city. 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 Sacheon‑si contains measurements for six common air 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). These values come from two monitoring stations, providing a total of twelve recent rows of data. Every pollutant entry was last refreshed on 2026‑02‑10 at 18:00 UTC, which falls within the “updated within seven days” freshness bucket, so the information reflects conditions that are only a few days old.

Across the six pollutants the observed concentrations span modest ranges. CO varies from a low of 0.32 ppm to a high of 0.35 ppm, with a median around 0.335 ppm; NO₂ runs between 0.0079 ppm and 0.02 ppm, centering near 0.014 ppm; O₃ shows the widest spread, from 0.0044 ppm up to 0.0273 ppm, with a median of roughly 0.016 ppm. Particulate matter is reported in micrograms per cubic metre: PM10 values lie between 21 and 33 µg/m³ (median 27), while PM2.5 ranges from 17 to 26 µg/m³ (median about 21.5). SO₂ is the least variable, staying between 0.002 and 0.0025 ppm with a median of 0.00225 ppm.

Because only two stations contribute data, spatial coverage within the city is limited; conditions can differ in neighborhoods that are not directly represented by these monitors. Nevertheless, the dataset offers a recent snapshot of each pollutant’s typical range, showing that most values cluster close to their medians with relatively narrow inter‑percentile spreads (10th–90th percentiles). This provides a concrete baseline for understanding current air quality in Sacheon‑si, while acknowledging that local variations may exist beyond what the two stations capture.

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 Sacheon‑si is based on twelve valid measurements and was refreshed within three days, with the latest update recorded at 2026‑02‑10T18:00:00+00:00. This snapshot reflects conditions at the time of collection; 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