Costa Mesa Air Quality Index (AQI) and Air Pollution

The Costa Mesa Air Quality Index (AQI) today is 43 (Good). The dominant pollutant is O3. Other measured pollutants include NO₂ (0.1 ppb), SO₂ (0.1 ppb), CO (0.082 ppm), O₃ (0.046 ppm), PM10 (16µg/m³), PM2.5 (4.9 µg/m³), contributing to air pollution.

Live AQI

43(US-AQI)

Air Quality is

Good

Main Pollutant: O3

Last updated: just now

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300301+

19°C

79%

13 Km/h

In Costa Mesa, the main air pollutant is O3. It mostly comes from Ozone forms when sunlight reacts with gases from vehicles and industries. It can irritate the lungs and throat and make it difficult to breathe especially for people with asthma. To stay safe, Try to avoid outdoor exercise during afternoon hours when ozone levels are usually high.