Air quality in Gumi-si, South Korea today

Mr. Duck’s Air Quality Score

Moderate air today for Gumi-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 Gumi‑si is currently assessed as Moderate. The primary pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 concentration of 22.0 µg/m³ and a PM10 level of 29.0 µg/m³, based on thirty valid observations.

Data are shown via OpenAQ. 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 Gumi‑si contains measurements from five monitoring stations and reports 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). All of the latest readings were recorded at 2026‑02‑10 18:00 UTC, which falls within the “updated within 7 days” freshness category, so the information reflects conditions from only a few days ago.

Across the five stations the observed values show modest variation. CO ranges from 0.37 to 0.77 ppm with a median of 0.65 ppm; NO2 is between 0.012 and 0.0208 ppm, centering around 0.0192 ppm; O3 varies from 0.0153 to 0.0305 ppm, with a typical value near 0.0254 ppm. For the particulate matter metrics, PM10 spans 18 to 31 µg/m³ (median 29 µg/m³) while PM2.5 is confined to a narrower band of 19 to 22 µg/m³ (median 22 µg/m³). SO2 measurements are low, ranging from 0.0018 to 0.0025 ppm with a median of 0.0022 ppm.

The data set provides a fairly complete snapshot for each pollutant, but the number of stations is limited to five, so spatial coverage may not capture micro‑scale differences across the city. The timestamps are uniformly recent, indicating no older or unknown entries in this release. Consequently, while the figures give a clear picture of current concentrations at the sampled sites, conditions can still differ by neighborhood and time of day beyond what these five rows represent.

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 Gumi‑si includes 30 valid measurements and is refreshed regularly, having been Updated within 3 days; the most recent data were recorded at 2026-02-10T18:00:00+00:00. While this information reflects the overall air quality conditions across the city, actual levels can differ by specific neighborhoods and times of day, so users should consider local variations when interpreting the figures.

OpenAQ station rows