Air quality in Jangsu-gun, South Korea today

Mr. Duck’s Air Quality Score

Moderate air today for Jangsu-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 Jangsu‑gun is rated as Moderate. The primary pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 concentration of 18.0 µg/m³ and a PM10 level of 24.0 µg/m³, based on twelve 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 air‑quality feed for Jangsu‑gun draws from two monitoring sites that together contribute twelve recent records across the full set of measured pollutants – carbon monoxide (CO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter 10 µm or less (PM₁₀), fine particulate matter 2.5 µm or less (PM₂.₅) and sulfur dioxide (SO₂). All twelve entries were last updated on 2026‑02‑10 at 17:00 UTC, so the data are fresh within the past week for every compound.

Across the two stations the observed concentrations show a fairly tight spread. CO values range from 0.30 to 0.35 ppm with a median of about 0.325 ppm; NO₂ varies between 0.0071 and 0.0084 ppm, centering near 0.0078 ppm; O₃ is recorded from 0.0127 up to 0.018 ppm, with a typical level around 0.015 ppm. Particulate matter shows PM₁₀ concentrations between 21 and 24 µg/m³ (median 22.5 µg/m³) and PM₂.₅ from 14 to 18 µg/m³ (median 16 µg/m³). Sulfur dioxide is the lowest‑level gas, ranging from 0.0016 to 0.0020 ppm with a median near 0.0018 ppm.

Because every pollutant has exactly twelve recent entries, there are no gaps or older measurements in this snapshot; however, the limited number of stations means that spatial variation within Jangsu‑gun is not captured in detail. The narrow numeric ranges suggest relatively stable conditions at the sampled locations during the reporting period, but actual concentrations can differ elsewhere in the county and at other times.

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 are based on twelve valid measurements and have been updated within three days, with the most recent reading recorded at 2026‑02‑10T17:00:00+00:00. This snapshot reflects conditions at a specific time and place; air quality can vary across different neighborhoods and moments throughout Jangsu-gun.

OpenAQ station rows