Mexico City vs San Diego

Live AQI Comparison

Updated 46m ago · Data from OpenAQ

Mexico City

Mexico

Good

PM2.510 µg/m³

PM1031 µg/m³

San Diego

United States

Good

PM2.59.1 µg/m³

PM1029 µg/m³

Verdict

Mexico City currently has worse air quality than San Diego (AQI 4 points higher). Both cities have acceptable air quality levels.

Mexico City vs San Diego Air Quality Analysis

Based on the latest measurements, Mexico City has an AQI of 42 compared to San Diego's AQI of 38. The World Health Organization (WHO) recommends annual PM2.5 levels below 15 µg/m³ and 24-hour levels below 45 µg/m³.

PM2.5 levels in both cities are within WHO guidelines. Outdoor activities can be enjoyed without air quality concerns.

Air quality can change rapidly due to weather patterns, traffic, and industrial activity. Check back hourly for the latest comparison between Mexico City and San Diego.

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Frequently Asked Questions

Which city has worse air quality today, Mexico City or San Diego?

Mexico City currently has worse air quality with an AQI of 42 compared to San Diego's AQI of 38. This data is updated hourly from government monitoring stations.

Is it safer to be in Mexico City or San Diego right now?

Based on current AQI levels, San Diego (AQI 38) has safer air quality than Mexico City (AQI 42). Both cities have acceptable air quality for outdoor activities.

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