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Current air quality index in Antioch, California today

Stay updated with real-time air quality in Antioch, 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)

27

Good

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Antioch, California

Last updated: ... (Local time)

Major air pollutants in Antioch, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter2.5 (PM2.5)

4.81 μg/m³

0

12.1

35.5

55.5

250.5

500.5+

Particulate Matter10 (PM10)

19.29 μg/m³

0

55

155

255

425

605+

Ozone (O3)

26.12 ppb

0

55

71

86

201

201+

Sulfur Dioxide (SO2)

0.79 ppb

0

36

76

186

605

1005+

Nitrogen Dioxide (NO2)

2.47 ppb

0

54

101

361

1250

2050+

Carbon Monoxide (CO)

0.23 ppm

0

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

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Antioch, California

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Real-time air quality map: Monitor AQI near Antioch, California




How accurate is California, USA air quality data?

The air quality data for California, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.


Frequently asked questions

How frequently does the air quality data for Antioch, California get updated?

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Air quality updates for Antioch, California are available every hour.


What time in the past 24 hours saw the poorest air quality in Antioch, California?

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Antioch, California experienced its worst air quality at 12:00:00, 2025-06-05.


When was air quality in Antioch, California the best over the past 24 hours?

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The best air quality in Antioch, California was observed at 08:00:00 on 2025-06-06.


What is the air quality in Antioch, California right now?

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The air quality in Antioch, California right now is Good, with an AQI of 27.


What pollutant is most frequently found in Antioch, California?

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In Antioch, California, PM2.5 is the most frequently found pollutant.


What can I do if the air quality in Antioch, California is poor?

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When air quality in Antioch, California is compromised, staying indoors and wearing a mask can reduce health risks.


What is the PM2.5 concentration in Antioch, California right now?

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Antioch, California currently has a PM2.5 concentration of 4.814 μg/m3.


What is the current level of PM10 in Antioch, California?

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Antioch, California currently has a PM10 concentration of 19.294 μg/m3.


What is the current level of carbon monoxide (CO) in Antioch, California?

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The current carbon monoxide (CO) level in Antioch, California is 0.228 ppm.


What is the current level of sulfur dioxide (SO2) in Antioch, California?

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The current sulfur dioxide (SO2) concentration in Antioch, California is 0.791 ppb.


What is the current level of ozone (O3) in Antioch, California?

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Antioch, California currently has an ozone (O3) concentration of 26.123 ppm.


What is the current level of nitrogen dioxide (NO2) in Antioch, California?

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The current level of nitrogen dioxide (NO2) in Antioch, California is 2.471 ppb.


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