Air quality in Anseong-myeon, South Korea today

Mr. Duck’s Air Quality Score

Moderate air today for Anseong-myeon, 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 Anseong-myeon is currently classified as Moderate. The primary pollutant identified is PM2.5, fine particulate matter that is measured alongside PM10. Recent observations show a PM2.5 concentration of 16.0 µg/m³ and a matching PM10 level of 16.0 µg/m³, based on six valid measurements recorded by OpenAQ.

Data for this assessment are drawn from the latest available readings and reflect the conditions at the time of measurement. 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 Anseong‑myeon contains measurements of six common air pollutants – carbon monoxide (CO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter 10 µm or less (PM₁₀), particulate matter 2.5 µm or less (PM₂.₅) and sulfur dioxide (SO₂). All values come from a single monitoring site, represented by twelve recent rows of data. Each pollutant was last recorded on 2026‑02‑10 at 17:00 UTC, which falls within the “updated within 7 days” freshness category, so the information reflects conditions that are only a few days old.

Across the six pollutants the observed values span relatively narrow ranges. CO varies from a minimum of 0.26 ppm to a maximum of 0.30 ppm, with a median of 0.28 ppm; NO₂ is recorded between 0.0049 ppm and 0.0055 ppm (median 0.0052 ppm); O₃ ranges from 0.0183 ppm up to 0.0207 ppm (median 0.0195 ppm). For the particulate fractions, PM₁₀ shows a minimum of 16 µg/m³ and a maximum of 22 µg/m³ (median 19 µg/m³), while PM₂.₅ runs from 12 µg/m³ to 16 µg/m³ (median 14 µg/m³). SO₂ is the lowest‑concentration gas, recorded between 0.0012 ppm and 0.0014 ppm with a median of 0.0013 ppm.

Because the data set originates from only one station, it captures conditions at that specific location but does not provide city‑wide spatial coverage. The uniform freshness of all six pollutants means there are no older or unknown timestamps to skew the picture, yet the limited number of rows (twelve) restricts insight into day‑to‑day variability. Consequently, while the current snapshot offers a clear view of recent pollutant levels at the monitoring point, broader temporal and geographic patterns across Anseong‑myeon remain unrepresented.

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 Anseong-myeon is based on six valid measurements and was refreshed within the last three days, with the most recent update recorded at 2026‑02‑10 17:00 UTC. This snapshot reflects conditions at the time of sampling; air quality can differ across neighborhoods and change throughout the day, so values may vary locally and temporally.

OpenAQ station rows