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Live air quality index in Pleasant Hill, California today

Stay updated with real-time air quality in Pleasant Hill, 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)

25

Good

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Pleasant Hill, California

Last updated: ... (Local time)

Major air pollutants in Pleasant Hill, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter2.5 (PM2.5)

2.41 μg/m³

0

12.1

35.5

55.5

250.5

500.5+

Particulate Matter10 (PM10)

10.45 μg/m³

0

55

155

255

425

605+

Ozone (O3)

27.03 ppb

0

55

71

86

201

201+

Sulfur Dioxide (SO2)

0.13 ppb

0

36

76

186

605

1005+

Nitrogen Dioxide (NO2)

1.23 ppb

0

54

101

361

1250

2050+

Carbon Monoxide (CO)

0.39 ppm

0

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

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Pleasant Hill, California

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Pleasant Hill, California air quality map: Real-time AQI near you




How accurate is California, USA air quality data?

Air quality measurements for California, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.


Frequently asked questions

How frequently is the air quality data for Pleasant Hill, California updated?

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Air quality data for Pleasant Hill, California is updated on an hourly basis.


When did Pleasant Hill, California experience the worst air quality in the last 24 hours?

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The worst air quality in Pleasant Hill, California was recorded at 05:00:00 on 2025-06-05.


When did Pleasant Hill, California have its best air quality in the last 24 hours?

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The best air quality in Pleasant Hill, California was recorded at 08:00:00 on 2025-06-06.


What is the real-time air quality index for Pleasant Hill, California?

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The real-time air quality index in Pleasant Hill, California is 25, currently categorized as Good.


Which pollutant is found most often in Pleasant Hill, California?

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The most common pollutant in Pleasant Hill, California is O3.


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

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If the air quality in Pleasant Hill, California is poor, limit outdoor activities and use a mask to safeguard your health.


What are the current PM2.5 levels in Pleasant Hill, California?

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The measured PM2.5 levels in Pleasant Hill, California at present are 2.409 μg/m3.


What are the current PM10 levels at Pleasant Hill, California?

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The current PM10 levels in Pleasant Hill, California are 10.452 μg/m3.


What are the current carbon monoxide (CO) levels at Pleasant Hill, California?

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The current carbon monoxide (CO) level in Pleasant Hill, California is 0.393 ppm.


What are the current sulfur dioxide (SO2) levels at Pleasant Hill, California?

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The current sulfur dioxide (SO2) levels in Pleasant Hill, California are 0.132 ppb.


What are the current ozone (O3) levels at Pleasant Hill, California?

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The current ozone (O3) levels at Pleasant Hill, California is 27.03 ppm.


What are the current nitrogen dioxide (NO2) levels at Pleasant Hill, California?

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The current nitrogen dioxide (NO2) levels at Pleasant Hill, California is 1.23 ppb.


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