Air quality in Daegu, South Korea today

Mr. Duck’s Air Quality Score

Unhealthy for sensitive groups for Daegu, 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 Daegu is classified as USG. The primary pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 reference value of 37.0 and a PM10 reference value of 56.0, based on 156 valid observations.

Data are displayed via OpenAQ and reflect the current assessment 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

Daegu’s air‑quality feed includes six measured 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). The dataset draws from 26 monitoring stations, each providing a recent reading that was last updated on 2026‑02‑10 18:00 UTC, so every pollutant has fresh data within the past week.

Across the city the CO values range from 0.34 ppm at the low end to 0.81 ppm at the high end, with a median of 0.56 ppm; the most recent single‑station measurement is 0.7 ppm in 만촌동. NO₂ shows a narrower spread, from 0.0075 ppm up to 0.0463 ppm and a median of about 0.034 ppm, with the latest reading at 0.0364 ppm (만촌동). O₃ varies between 0.0023 ppm and 0.034 ppm, median 0.0101 ppm, and the newest value is 0.0147 ppm in the same district.

Particulate matter exhibits higher absolute values: PM10 ranges from 21 µg/m³ to 56 µg/m³ with a median of 34.5 µg/m³; the most recent station reports 34.0 µg/m³. PM2.5 spans 16 µg/m³ to 38 µg/m³, median 26 µg/m³, and the latest measurement is 21.0 µg/m³ (만촌동). SO₂ values are low overall, from 0.002 ppm to 0.0038 ppm, median 0.0028 ppm, with a current reading of 0.0035 ppm.

The data set is uniformly recent and covers all six pollutants at each of the 26 stations, giving a comprehensive snapshot for Daegu on the reporting date. Because concentrations differ between locations, conditions can vary across neighborhoods even though the overall picture reflects city‑wide monitoring at that moment.

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 Daegu includes 156 valid measurements and is updated within 3 days, with the most recent values recorded at 2026‑02‑10T18:00:00+00:00. These figures represent a snapshot of conditions across the monitoring network; actual air quality can differ by specific location and time within the city, so individual experiences may vary from the reported averages.

OpenAQ station rows