Ulsan vs Cheongju

Live AQI Comparison

Updated 30m ago · Data from OpenAQ

Ulsan

South Korea

Moderate

PM2.530 µg/m³

PM1053 µg/m³

Cheongju

South Korea

119

Unhealthy for Sensitive Groups

PM2.543 µg/m³

PM1063 µg/m³

Verdict

Cheongju currently has worse air quality than Ulsan (AQI 30 points higher). Sensitive groups in Cheongju should limit outdoor activity.

Ulsan vs Cheongju Air Quality Analysis

Based on the latest measurements, Cheongju has an AQI of 119 compared to Ulsan's AQI of 89. The World Health Organization (WHO) recommends annual PM2.5 levels below 15 µg/m³ and 24-hour levels below 45 µg/m³.

Current PM2.5 levels exceed the EPA "Moderate" threshold of 35.4 µg/m³. People with respiratory conditions, children, and the elderly should consider reducing prolonged outdoor exposure.

Air quality can change rapidly due to weather patterns, traffic, and industrial activity. Check back hourly for the latest comparison between Ulsan and Cheongju.

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Frequently Asked Questions

Which city has worse air quality today, Ulsan or Cheongju?

Cheongju currently has worse air quality with an AQI of 119 compared to Ulsan's AQI of 89. This data is updated hourly from government monitoring stations.

Is it safer to be in Ulsan or Cheongju right now?

Based on current AQI levels, Ulsan (AQI 89) has safer air quality than Cheongju (AQI 119). People in Cheongju should consider limiting outdoor activities.

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