Air quality in Seogwipo-si, South Korea today

Mr. Duck’s Air Quality Score

Moderate air today for Seogwipo-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 Seogwipo‑si is currently classified as Moderate. The primary pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 reference value of 12.0 and a PM10 reference value of 18.0, based on 24 valid observations collected via OpenAQ.

These figures 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 dataset for Seogwipo‑si contains measurements of six key 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). Across the city there are 36 individual data rows drawn from five monitoring stations, all of which reported their most recent values on 2026‑02‑10 at 18:00 UTC, placing every pollutant in the “updated within 7 days” freshness category.

For CO the observed values range from a low of 0.22 ppm to a high of 0.42 ppm, with a median of 0.36 ppm; the extreme‑10th and 90th‑percentile points sit at 0.275 ppm and 0.405 ppm respectively. NO2 shows a narrower spread, from 0.0043 ppm up to 0.013 ppm, median 0.00475 ppm, with the 10th and 90th percentiles at roughly 0.0045 ppm and 0.0102 ppm. Ozone varies between 0.027 ppm and 0.0449 ppm, median 0.0415 ppm; its percentile band runs from about 0.0289 ppm to 0.0437 ppm.

Particulate matter exhibits the widest absolute range: PM10 values are recorded from 11 µg/m³ to 35 µg/m³ (median 16.5 µg/m³), while PM2.5 spans 4 µg/m³ to 21 µg/m³ with a median of 10.5 µg/m³. The percentile limits for PM10 are roughly 11.5 µg/m³ and 33 µg/m³, and for PM2.5 they are about 5.5 µg/m³ and 19.5 µg/m³. SO2 is the least variable, ranging from 0.0012 ppm to 0.0016 ppm, median 0.0014 ppm, with its 10th‑percentile near 0.00125 ppm and 90th‑percentile around 0.00155 ppm.

Overall the data set offers a recent snapshot from multiple locations, but because only five stations contribute, spatial coverage is limited; conditions can differ across neighborhoods and times not captured by these rows.

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 Seogwipo‑si reflects 24 valid measurements and is Updated within 3 days, with the most recent reading recorded at 2026-02-10T18:00:00+00:00. This snapshot provides a current overview of ambient air quality, but conditions can differ across neighborhoods and change throughout the day, so local variations may not be captured in this single set of values.

OpenAQ station rows