Air quality in Yeongjong 1-dong, South Korea today

Mr. Duck’s Air Quality Score

Unhealthy for sensitive groups for Yeongjong 1-dong, 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 Yeongjong 1‑dong is classified as USG. The primary pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 reference value of 36.0 and a PM10 reference value of 55.0, based on six valid observations recorded via OpenAQ.

These figures reflect the current assessment for the area. 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 Yeongjong 1‑dong 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). All of these values come from a single monitoring site that contributed twelve recent rows of data, each refreshed on 2026‑02‑10 at 17:00 UTC, so the dataset is uniformly fresh within the past week.

Across the six gases, the recorded concentrations span modest ranges. CO varied between 0.37 and 0.54 ppm with a median of about 0.46 ppm; NO₂ showed a broader spread from 0.0031 to 0.0314 ppm, centering near 0.017 ppm; O₃ ranged from 0.0131 up to 0.0505 ppm, with a typical value around 0.032 ppm. The particulate measurements were higher in absolute terms: PM₁₀ values fell between 24 and 55 µg/m³ (median ≈ 39.5 µg/m³) while PM₂.₅ stayed within 21 to 36 µg/m³ (median ≈ 28.5 µg/m³). SO₂ was the least variable, recorded from 0.0022 to 0.0027 ppm with a median of roughly 0.00245 ppm.

Because only one station supplies data for Yeongjong 1‑dong, the coverage reflects conditions at that specific location rather than the entire neighbourhood. Nevertheless, the dataset is complete for all six pollutants and each metric has been updated within the last seven days, providing a current snapshot of ambient air quality. The observed spreads—particularly the wider range in NO₂ and O₃ compared with the tighter SO₂ values—highlight how different gases can fluctuate even when measured at the same 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 data shown for Yeongjong 1‑dong is based on six valid measurements and was refreshed recently, having been updated within three days (last update: 2026‑02‑10 17:00 UTC). This snapshot reflects conditions at the time of sampling; air quality can vary across different locations and times within the city, so actual exposure may differ from what is displayed here.

OpenAQ station rows