Air quality in Gwangyang-si, South Korea today

Mr. Duck’s Air Quality Score

Moderate air today for Gwangyang-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 Gwangyang‑si is currently rated as Moderate. The primary pollutant identified is PM2.5, with a measured concentration of 13.0 µg/m³, while the accompanying PM10 level stands at 17.0 µg/m³ based on 24 valid observations.

Data are shown via OpenAQ and reflect the latest available readings 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 Gwangyang‑si contains measurements of six common air pollutants – 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). These values come from 24 individual rows that represent four monitoring stations spread across the city, each contributing a full set of readings.

All of the latest observations were recorded on 2026‑02‑10 at 18:00 UTC, and every pollutant is flagged as “Updated within 7 days,” indicating that the most recent data are less than a week old. The individual measurements show modest variability. CO values range from 0.20 to 0.31 ppm with a median of 0.26 ppm; NO₂ spans 0.0049‑0.0177 ppm (median 0.0057 ppm); O₃ varies between 0.0026 and 0.0426 ppm (median 0.03 ppm). For the particulates, PM10 is recorded from 8 to 17 µg/m³ (median 16 µg/m³) and PM2.5 from 5 to 15 µg/m³ (median 11 µg/m³). SO₂ levels are low, ranging 0.0013‑0.0025 ppm with a median of about 0.0022 ppm.

The data set is fairly complete in terms of pollutant coverage – every station reports all six species – but the number of stations (four) limits spatial resolution, so conditions can differ across neighborhoods. The recent timestamp for each pollutant suggests the information reflects current air quality rather than historic or outdated values.

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 Gwangyang‑si includes 24 valid measurements and is refreshed regularly, having been updated within the past three days (last update: 2026‑02‑10T18:00:00+00:00). These values represent a snapshot of conditions at the time of collection; air quality can differ across neighborhoods and change throughout the day, so this information may not reflect current or localized conditions elsewhere in the city.

OpenAQ station rows