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Sierra Madre, California live air quality index now

Stay updated with real-time air quality in Sierra Madre, 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)

38

Good

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Sierra Madre, California

Last updated: ... (Local time)

Major air pollutants in Sierra Madre, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter2.5 (PM2.5)

6.77 μg/m³

0

12.1

35.5

55.5

250.5

500.5+

Particulate Matter10 (PM10)

25.58 μg/m³

0

55

155

255

425

605+

Ozone (O3)

24.72 ppb

0

55

71

86

201

201+

Sulfur Dioxide (SO2)

0.24 ppb

0

36

76

186

605

1005+

Nitrogen Dioxide (NO2)

4.55 ppb

0

54

101

361

1250

2050+

Carbon Monoxide (CO)

0.20 ppm

0

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

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Sierra Madre, California

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Sierra Madre, California air quality map: Track AQI near you




How accurate is California, USA air quality data?

Air quality data and pollutant measurements for California, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.


Frequently asked questions

How often is the air quality data for Sierra Madre, California updated?

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The air quality for Sierra Madre, California is updated every hour.


When was the worst air quality at Sierra Madre, California in the last 24 hrs?

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The worst air quality in Sierra Madre, California in the last 24 hours was observed at 12:00:00 on 2025-07-22.


When was the best air quality at Sierra Madre, California in the last 24 hrs?

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In the last 24 hrs, the best air quality in Sierra Madre, California was observed at 10:00:00 on 2025-07-22.


What is the current air quality in Sierra Madre, California?

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The current air quality in Sierra Madre, California is 44, categorized as Good based on real-time data.


What pollutant is the most common in Sierra Madre, California?

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The most common pollutant in Sierra Madre, California is PM2.5.


What should I do if the air quality in Sierra Madre, California is poor?

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If the air quality in Sierra Madre, California is poor, consider staying indoors and wearing a mask to protect yourself.


What is the current concentration of PM2.5 in Sierra Madre, California?

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The current PM2.5 concentration at Sierra Madre, California is 7.684 μg/m3.


What is the current concentration of PM10 in Sierra Madre, California?

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The current PM10 concentration at Sierra Madre, California is 25.576 μg/m3.


What is the current concentration of carbon monoxide (CO) in Sierra Madre, California?

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The current carbon monoxide (CO) concentration at Sierra Madre, California is 0.21 ppm.


What is the current concentration of sulfur dioxide (SO2) in Sierra Madre, California?

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The current sulfur dioxide (SO2) concentration at Sierra Madre, California is 0.153 ppb.


What is the current concentration of ozone (O3) in Sierra Madre, California?

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The current ozone (O3) concentration at Sierra Madre, California is 30.22 ppm.


What is the current concentration of nitrogen dioxide (NO2) in Sierra Madre, California?

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The current nitrogen dioxide (NO2) concentration at Sierra Madre, California is 10.077 ppb.


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