Air quality in Jeonju-si, South Korea today

Mr. Duck’s Air Quality Score

Moderate air today for Jeonju-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 Jeonju-si is currently classified as Moderate. The primary pollutant identified is PM2.5 (fine particles). Measurements from 41 valid observations support this assessment. The assessment is based on a set of 41 valid measurements collected across the city. These measurements are aggregated to determine the overall category and identify the dominant pollutant.

According to the data, the reference concentration for PM2.5 is 25.0 µg/m³ and for PM10 is 33.0 µg/m³. The reference value of 25.0 µg/m³ for PM2.5 represents the threshold used in the classification, while the PM10 reference of 33.0 µg/m³ provides a comparable benchmark for coarse particles. The data set includes both fine and coarse particulate readings, allowing a comprehensive view of particulate matter conditions. Data is 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 Jeonju‑si pulls measurements from eight monitoring stations, giving a total of 53 recent data rows. Of those, 47 entries were recorded within the last 30 days and six are older than a month, so the bulk of the information reflects fairly current conditions. All six 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)—are represented, although the number of stations varies slightly: CO, NO₂, PM10, PM2.5 and SO₂ each have nine rows from eight stations, while O₃ has eight rows from seven stations, indicating a modest gap in spatial coverage for ozone.

The most recent timestamp for every pollutant is 2026‑02‑10 18:00 UTC, confirming that the latest updates are all within the same recent reporting window. Typical values are low: CO is recorded at 0.35 ppm, NO₂ at 0.0212 ppm, O₃ at 0.0133 ppm, PM10 at 25.0 µg/m³, PM2.5 at 25.0 µg/m³, and SO₂ at 0.0026 ppm in the example row from the 노송동 station. Median concentrations across the city are similarly modest—CO 0.37 ppm, NO₂ 0.0212 ppm, O₃ 0.01145 ppm, PM10 35 µg/m³, PM2.5 25 µg/m³, and SO₂ 0.0025 ppm—while minimum recorded values sit close to these medians (e.g., CO 0.29 ppm, NO₂ 0.0118 ppm). The reported maximums are set at 9 999 for each pollutant, a placeholder that suggests occasional sensor spikes or data‑quality flags rather than realistic extreme concentrations.

Overall, the Jeonju‑si air‑quality feed offers a fairly fresh snapshot from a network of eight stations, with most pollutants well represented and recent updates available. A small portion of older rows and the limited ozone station count mean that conditions can still vary across neighborhoods and times, so the picture is most reliable for the recent month covered by the majority of the data.

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

This dataset includes 41 valid measurements and has been updated within 30 days. The latest update was applied on 2026-02-10 at 18:00 UTC. Please note that air quality can vary by location and time within the city, so this snapshot may not reflect conditions at every neighborhood or moment.

OpenAQ station rows