Air quality in Gunpo-si, South Korea today

Mr. Duck’s Air Quality Score

Unhealthy for sensitive groups for Gunpo-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 today in Gunpo‑si is classified as USG. The primary pollutant identified is PM2.5, with a measured concentration of 42.0 µg/m³, while the accompanying PM10 level stands at 55.0 µg/m³ based on six valid observations.

Data are shown via OpenAQ and reflect the current monitoring results 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

Gunpo‑si’s OpenAQ feed currently includes six measured 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). The dataset is built from twelve recent observation rows, all recorded at the same monitoring site in 당동, and each entry was last updated on 2026‑02‑10 17:00 UTC, which falls within the “updated within 7 days” freshness bucket.

Across the pollutants the observed values span a modest range. CO varies from a low of 0.32 ppm to a high of 0.48 ppm, with a median around 0.40 ppm; NO₂ runs between 0.0081 ppm and 0.0331 ppm, centering near 0.0206 ppm; O₃ is recorded from 0.0125 ppm up to 0.0371 ppm, with a typical value of about 0.0248 ppm. Particulate matter shows broader dispersion: PM10 values range from 12 µg/m³ to 55 µg/m³ (median 33.5 µg/m³), while PM2.5 spans 6 µg/m³ to 42 µg/m³ (median 24 µg/m³). SO₂ is the least variable, recorded between 0.0018 ppm and 0.0026 ppm, with a median of roughly 0.0022 ppm.

Because all twelve rows come from a single location and share the same recent timestamp, the dataset offers a snapshot that is temporally fresh but spatially limited; conditions elsewhere in Gunpo‑si may differ from those at 당동. The pollutant coverage is complete for the six listed species, yet the concentration spread is especially pronounced for the particulate metrics compared with the gases, which remain tightly clustered around their median values. This combination of up‑to‑date reporting and narrow geographic focus should be kept in mind when interpreting the numbers for the broader city environment.

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 reflects six valid measurements and was updated within 3 days, with the most recent reading recorded at 2026‑02‑10T17:00:00+00:00. While this snapshot provides a current view of air quality in Gunpo‑si, conditions can differ across neighborhoods and change throughout the day, so local variations may not be captured by these aggregated values.

OpenAQ station rows