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Real-time air quality index in Watsonville, California today

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

28

Good

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Watsonville, California

Last updated: ... (Local time)

Major air pollutants in Watsonville, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter2.5 (PM2.5)

4.39 μg/m³

0

12.1

35.5

55.5

250.5

500.5+

Particulate Matter10 (PM10)

21.47 μg/m³

0

55

155

255

425

605+

Ozone (O3)

30.20 ppb

0

55

71

86

201

201+

Sulfur Dioxide (SO2)

0.91 ppb

0

36

76

186

605

1005+

Nitrogen Dioxide (NO2)

4.32 ppb

0

54

101

361

1250

2050+

Carbon Monoxide (CO)

0.21 ppm

0

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

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Watsonville, California

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Watsonville, 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 Watsonville, California?

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


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

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In the past 24 hours, the air quality in Watsonville, California was at its worst at 12:00:00 on 2025-06-06.


When did Watsonville, 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 Watsonville, California was observed at 10:00:00 on 2025-06-06.


What is the AQI in Watsonville, California right now?

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As of now, the AQI in Watsonville, California is 28, indicating Good conditions.


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

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Watsonville, California air has the highest levels of O3.


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

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


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

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PM2.5 levels in Watsonville, California are currently 4.387 μg/m3.


What is the PM10 level in Watsonville, California at the moment?

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The PM10 concentration in Watsonville, California is 21.467 μg/m3 at the moment.


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

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The current carbon monoxide (CO) concentration in Watsonville, California is 0.209 ppm.


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

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Currently, Watsonville, California has a sulfur dioxide (SO2) concentration of 0.908 ppb.


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

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The current ozone (O3) level in Watsonville, California at the moment is 30.202 ppm.


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

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Nitrogen dioxide (NO2) level in Watsonville, California at the moment is 4.318 ppb.


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