Seoul vs Tokyo

Live AQI Comparison

Updated 23m ago · Data from OpenAQ

Seoul

South Korea

137

Unhealthy for Sensitive Groups

PM2.550 µg/m³

PM1065 µg/m³

Tokyo

Japan

Moderate

PM2.521 µg/m³

PM10—

Verdict

Seoul currently has worse air quality than Tokyo (AQI 67 points higher). Sensitive groups in Seoul should limit outdoor activity.

Seoul vs Tokyo Air Quality Analysis

Based on the latest measurements, Seoul has an AQI of 137 compared to Tokyo's AQI of 70. 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 Seoul and Tokyo.

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Frequently Asked Questions

Which city has worse air quality today, Seoul or Tokyo?

Seoul currently has worse air quality with an AQI of 137 compared to Tokyo's AQI of 70. This data is updated hourly from government monitoring stations.

Is it safer to be in Seoul or Tokyo right now?

Based on current AQI levels, Tokyo (AQI 70) has safer air quality than Seoul (AQI 137). People in Seoul should consider limiting outdoor activities.

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