Air quality in Geochang-gun, South Korea today

Mr. Duck’s Air Quality Score

Moderate air today for Geochang-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 Geochang‑gun is assessed as Moderate today. The primary pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 reference value of 14.0 and a PM10 reference value of 23.0, based on twelve valid observations collected via OpenAQ.

These figures reflect the current monitoring results for the area. 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 record for Geochang‑gun draws on twelve data rows collected at two monitoring sites, all of which were last refreshed on 2026‑02‑10 18:00 UTC and are flagged as “updated within 7 days.” This means the most recent measurements for every pollutant are less than a week old, giving a fairly current snapshot of conditions across the county. The dataset includes six common pollutants: carbon monoxide (CO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter 10 µm or smaller (PM₁₀), fine particulate matter 2.5 µm or smaller (PM₂.₅) and sulfur dioxide (SO₂). Each of these is reported from the same two stations, so coverage is uniform across the pollutant set.

Across the twelve rows, CO values range from 0.21 to 0.41 ppm with a median of 0.31 ppm; NO₂ spans 0.0109‑0.0166 ppm (median 0.01375 ppm); O₃ is measured between 0.0042 and 0.0051 ppm (median 0.00465 ppm). Particulate matter shows a tighter spread: PM₁₀ varies from 19 to 23 µg/m³ (median 21 µg/m³) while PM₂.₅ ranges from 13 to 14 µg/m³ (median 13.5 µg/m³). SO₂ is the lowest‑concentration gas, recorded between 0.0024 and 0.0028 ppm (median 0.0026 ppm). The 10th‑percentile figures sit close to the minima for each pollutant, indicating that most recent readings cluster near the lower end of their observed ranges, while the 90th‑percentile values approach the maxima, showing a modest but consistent spread.

Because all twelve rows are recent and come from only two locations, the data give a clear but geographically limited picture of air quality in Geochang‑gun. The narrow range for each pollutant suggests relatively stable conditions during the reporting period, yet the small number of stations means that localized variations—such as those near traffic corridors or industrial sites—may not be fully captured. Users should keep in mind that actual conditions can differ across neighborhoods and over time, especially between measurement updates.

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 Geochang‑gun includes twelve valid measurements and is marked as Updated within 3 days, with the most recent values recorded on 2026‑02‑10 at 18:00 UTC. These figures represent a snapshot of conditions across the monitoring network; actual air quality can differ by specific location and time of day within the city.

OpenAQ station rows