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Live air quality index in Mission Viejo, California today

Stay updated with real-time air quality in Mission Viejo, California featuring accurate data on AQI, PM2.5, PM10, O3, NO2, SO2, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.

Live AQI (Air Quality Index)

45

Good

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Mission Viejo, California

Last updated: ... (Local time)

Major air pollutants in Mission Viejo, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter2.5 (PM2.5)

5.44 μg/m³

0

12.1

35.5

55.5

250.5

500.5+

Particulate Matter10 (PM10)

17.66 μg/m³

0

55

155

255

425

605+

Ozone (O3)

49.15 ppb

0

55

71

86

201

201+

Sulfur Dioxide (SO2)

0.82 ppb

0

36

76

186

605

1005+

Nitrogen Dioxide (NO2)

4.98 ppb

0

54

101

361

1250

2050+

Carbon Monoxide (CO)

0.17 ppm

0

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

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Mission Viejo, California

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Mission Viejo, California air quality map: Stay updated on AQI near you




How accurate is California, USA air quality data?

Air quality and pollutant data for California, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.


Frequently asked questions

How often is air quality information updated for Mission Viejo, California?

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The air quality information for Mission Viejo, California is updated every hour for accuracy.


What time in the last 24 hours was the air quality in Mission Viejo, California at its worst?

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In the past 24 hours, the air quality in Mission Viejo, California was at its worst at 06:00:00 on 2025-07-22.


When did Mission Viejo, California experience the best air quality in the last 24 hours?

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In the last 24 hours, the best air quality in Mission Viejo, California was observed at 06:00:00 on 2025-07-22.


What is the AQI in Mission Viejo, California right now?

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As of now, the AQI in Mission Viejo, California is 35, indicating Good conditions.


What is the most common type of pollution in Mission Viejo, California?

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Mission Viejo, California air has the highest levels of O3.


What should I do in case of poor air quality in Mission Viejo, California?

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Poor air quality in Mission Viejo, California means it's advisable to stay indoors and wear a mask for your protection.


What is the PM2.5 level in Mission Viejo, California at the moment?

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PM2.5 levels in Mission Viejo, California are currently 5.22 μg/m3.


What is the PM10 level in Mission Viejo, California at the moment?

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The PM10 concentration in Mission Viejo, California is 12.769 μg/m3 at the moment.


What is the carbon monoxide (CO) level in Mission Viejo, California at the moment?

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The current carbon monoxide (CO) concentration in Mission Viejo, California is 0.184 ppm.


What is the sulfur dioxide (SO2) level in Mission Viejo, California at the moment?

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Currently, Mission Viejo, California has a sulfur dioxide (SO2) concentration of 0.362 ppb.


What is the ozone (O3) level in Mission Viejo, California at the moment?

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The current ozone (O3) level in Mission Viejo, California at the moment is 38.019 ppm.


What is the nitrogen dioxide (NO2) level in Mission Viejo, California at the moment?

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Nitrogen dioxide (NO2) level in Mission Viejo, California at the moment is 5.688 ppb.


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