Air quality in Paju-si, South Korea today

Mr. Duck’s Air Quality Score

Unhealthy for sensitive groups for Paju-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 today in Paju‑si is classified as USG. The primary pollutant measured is PM2.5, with a reported concentration of 53.0 µg/m³, while the accompanying PM10 level stands at 67.0 µg/m³ based on 24 valid observations.

Data are shown via OpenAQ and reflect the current monitoring results for the city. 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 dataset for Paju‑si contains six monitoring points that report on 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 six pollutants are represented, but the number of recent observations varies slightly among them. The most recent measurement for each pollutant was recorded on 2026‑02‑10 at 18:00 UTC, so the data are all refreshed within the past week.

Across the six stations the observed values span a fairly wide range. CO concentrations range from a low of 0.33 ppm to a high of 1.14 ppm, with a median around 0.63 ppm; NO₂ varies between 0.0021 ppm and 0.036 ppm, centering near 0.022 ppm; O₃ shows the greatest spread, from 0.0014 ppm up to 0.0386 ppm, with a median of about 0.005 ppm. For particulate matter, PM10 values run from 24 µg/m³ to 100 µg/m³ (median 61.5 µg/m³) and PM2.5 from 9 µg/m³ to 60 µg/m³ (median 51.5 µg/m³). SO₂ is the least variable, recorded between 0.0009 ppm and 0.003 ppm with a median of 0.0018 ppm.

The distribution of measurements indicates that most stations provide recent data for all pollutants, but the number of rows classified as “old” (more than seven days) is twelve, while none are unknown or missing. This means roughly half of the available records are older than a week, suggesting that conditions can differ across locations and times within the city. Users should keep in mind that the snapshot reflects the specific moment captured on 2026‑02‑10 18:00 UTC and may not represent current levels at every site.

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 Paju‑si includes 24 valid measurements and is updated within 3 days, with the latest values recorded at 2026‑02‑10T18:00:00+00:00. These figures represent a snapshot of conditions across the city; actual air quality can differ by specific location and time of day, so users should consider local variations when interpreting the data.

OpenAQ station rows