Air quality in Pocheon-si, South Korea today

Mr. Duck’s Air Quality Score

Unhealthy air today for Pocheon-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 Pocheon‑si is currently classified as Unhealthy. The primary pollutant identified is PM2.5 (fine particles).

Measurements show a PM2.5 concentration of 76.0 µg/m³ and a PM10 level of 89.0 µg/m³, based on 18 valid observations collected 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 Pocheon‑si currently includes six measured pollutants – carbon monoxide (CO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter 10 µm or smaller (PM10), particulate matter 2.5 µm or smaller (PM2.5) and sulfur dioxide (SO₂). All data come from three monitoring stations, each providing a recent reading that was last updated on 2026‑02‑10 at 17:00 UTC, so the freshest timestamps are less than a week old for every pollutant.

Across the dataset the observed values show a fairly wide spread. CO concentrations range from 0.3 ppm up to 0.8 ppm with a median of about 0.66 ppm; NO₂ varies between 0.0106 ppm and 0.0398 ppm, centering near 0.016 ppm; O₃ is recorded from 0.0011 ppm to 0.0123 ppm, with a typical level around 0.008 ppm. For the particulates, PM10 values sit between 27 µg/m³ and 89 µg/m³, median 76 µg/m³, while PM2.5 spans 13 µg/m³ to 76 µg/m³ with a median of 66 µg/m³. SO₂ is the lowest‑concentration gas, ranging from 0.0011 ppm to 0.0035 ppm and averaging roughly 0.002 ppm.

The dataset’s coverage is consistent across all six pollutants – each has three recent observations, so there are no gaps where a pollutant is missing entirely. However, the spread between minimum and maximum values differs markedly: particulate matter shows a broader range relative to its median than the gases, indicating more variability in dust‑related measurements across the city. Because the data reflect only the three stations that reported on 2026‑02‑10, conditions elsewhere in Pocheon‑si may differ from these point readings, and any interpretation should consider that spatial variation is not captured by this limited set of rows.

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 Pocheon‑si is based on 18 valid measurements and has been refreshed — Updated within 3 days, with the most recent update recorded at 2026‑02‑10T17:00:00+00:00. This snapshot reflects conditions measured across the monitoring network but air quality can differ by specific location and time of day within the city, so values may not represent every spot or moment.

OpenAQ station rows