Air quality in Wanju-gun, South Korea today

Mr. Duck’s Air Quality Score

Moderate air today for Wanju-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 today in Wanju‑gun is classified as Moderate. The primary pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 reference value of 33.0 µg/m³ and a PM10 reference value of 35.0 µg/m³, based on twelve valid observations collected via OpenAQ.

These figures reflect the current assessment for the area without implying any trend or cause. 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 Wanju‑gun 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). Data come from two monitoring stations, each providing a full set of readings, giving a total of twelve recent observations across the city.

All twelve rows were updated within the past seven days, with the most recent timestamp recorded on 2026‑02‑10 at 18:00 UTC for every pollutant. This means the dataset reflects current conditions rather than historical archives. The values show modest variation: CO ranges from 0.42 to 0.45 ppm (median 0.435 ppm), NO₂ from 0.0079 to 0.0083 ppm (median 0.0081 ppm), and O₃ from 0.0056 to 0.0059 ppm (median 0.00575 ppm). Particulate matter displays a broader spread, with PM10 between 30 and 35 µg/m³ (median 32.5 µg/m³) and PM2.5 between 28 and 33 µg/m³ (median 30.5 µg/m³). Sulfur dioxide is the lowest‑concentration gas, ranging from 0.0014 to 0.0016 ppm (median 0.0015 ppm).

Because each station reports a complete set of pollutants, coverage is even across all six substances; there are no gaps where a pollutant is missing from any row. The data’s freshness and the consistent reporting from both stations give a reliable snapshot of Wanju‑gun’s air quality at the time of measurement, though actual conditions can still differ by location within the county and over shorter intervals than those captured here.

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 Wanju‑gun includes twelve valid measurements and is refreshed regularly, having been updated within three days; the most recent update was on 2026‑02‑10 at 18:00 UTC. These values represent a snapshot of ambient conditions across the area, but air quality can differ by specific location and time within the city, so individual experiences may vary from the reported figures.

OpenAQ station rows