Air quality in Buan-eup, South Korea today

Mr. Duck’s Air Quality Score

Moderate air today for Buan-eup, 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 Buan‑eup is currently classified as Moderate. The main pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 concentration of 25.0 µg/m³ and a PM10 level of 30.0 µg/m³, based on six 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 Buan‑eup air‑quality record consists of a single monitoring station that reports six common pollutants: carbon monoxide (CO), nitrogen dioxide (NO₂, written as NO2), ozone (O₃, written as O3), particulate matter 10 µm or smaller (PM10), particulate matter 2.5 µm or smaller (PM2.5, written as PM2.5), and sulfur dioxide (SO₂). All six measurements were last updated on 2026‑02‑10 at 17:00 UTC, so the data are fresh within the past seven days.

Each pollutant shows a single value because only one row is available. The CO reading stands at 0.36 ppm, NO2 at 0.0123 ppm, O3 at 0.0101 ppm, PM10 at 30.0 µg/m³, PM2.5 at 25.0 µg/m³, and SO₂ at 0.0013 ppm. Because there is no variation across time or location in this dataset, the minimum, median, maximum, 10th percentile and 90th percentile are all identical for every pollutant.

The limited coverage means that any snapshot reflects conditions at a single point in Buan‑eup rather than city‑wide averages. While the timestamps are recent, the lack of multiple rows or historical records prevents assessment of trends or spatial differences within the town. Users should keep in mind that air quality can change throughout the day and across neighborhoods, so this single‑station snapshot provides only a narrow view of current conditions.

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 Buan‑eup reflects six valid measurements and was updated within 3 days, with the latest reading recorded at 2026‑02‑10T17:00:00+00:00. This snapshot provides a recent view of local air quality, but conditions can differ across neighborhoods and change throughout the day, so values may not represent every spot or moment in the city.

OpenAQ station rows