logo
search icon

Real-time air quality index in Fountain Valley, California today

Stay updated with real-time air quality in Fountain Valley, 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)

49

Good

icon

Fountain Valley, California

Last updated: ... (Local time)

Major air pollutants in Fountain Valley, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter2.5 (PM2.5)

9.03 μg/m³

0

12.1

35.5

55.5

250.5

500.5+

Particulate Matter10 (PM10)

33.69 μg/m³

0

55

155

255

425

605+

Ozone (O3)

25.59 ppb

0

55

71

86

201

201+

Sulfur Dioxide (SO2)

0.35 ppb

0

36

76

186

605

1005+

Nitrogen Dioxide (NO2)

12.62 ppb

0

54

101

361

1250

2050+

Carbon Monoxide (CO)

0.28 ppm

0

4.5

9.5

12.5

230.5

50.5+

Pollen Level

High

icon

Fountain Valley, California

Get Live Pollen Counts arrow

Track live Fountain Valley, California air quality forecast and history

circleFountain Valley

Loading...

Get reliable air quality data to drive your business


Fountain Valley, 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 Fountain Valley, California?

expand

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


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

expand

In the past 24 hours, the air quality in Fountain Valley, California was at its worst at 03:00:00 on 2025-06-06.


When did Fountain Valley, California experience the best air quality in the last 24 hours?

expand

In the last 24 hours, the best air quality in Fountain Valley, California was observed at 08:00:00 on 2025-06-06.


What is the AQI in Fountain Valley, California right now?

expand

As of now, the AQI in Fountain Valley, California is 49, indicating Good conditions.


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

expand

Fountain Valley, California air has the highest levels of PM2.5.


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

expand

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


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

expand

PM2.5 levels in Fountain Valley, California are currently 9.026 μg/m3.


What is the PM10 level in Fountain Valley, California at the moment?

expand

The PM10 concentration in Fountain Valley, California is 33.689 μg/m3 at the moment.


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

expand

The current carbon monoxide (CO) concentration in Fountain Valley, California is 0.28 ppm.


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

expand

Currently, Fountain Valley, California has a sulfur dioxide (SO2) concentration of 0.348 ppb.


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

expand

The current ozone (O3) level in Fountain Valley, California at the moment is 25.59 ppm.


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

expand

Nitrogen dioxide (NO2) level in Fountain Valley, California at the moment is 12.623 ppb.


Ambee Footer Logo

All Rights Reserved © Ambee Inc. 2025