What is the current concentration of PM10 in Brea, California?

The current PM10 concentration at Brea, California is 37.738 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Brea, California is 0.4 ppb.

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

The current ozone (O3) concentration at Brea, California is 44.058 ppm.

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

The current nitrogen dioxide (NO2) concentration at Brea, California is 6.422 ppb.

Brea, California live air quality index now

Q: What is the current concentration of PM2.5 in Brea, California?

The current PM2.5 concentration at Brea, California is 6.347 μg/m3.

Stay updated with real-time air quality in Brea, California featuring accurate data on AQI, PM_2.5, 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)

Good

Brea, California

Last updated: ... (Local time)

Major air pollutants in Brea, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

6.35 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

37.74 μg/m³

155

255

425

605+

Ozone (O₃)

44.06 ppb

201

201+

Sulfur Dioxide (SO₂)

0.40 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

6.42 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.35 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Looks like we don't have this data available right now

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Brea, California

Scroll To Air Quality Map

Track live Brea, California air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-03-08T03:00:00.000Z	27 \| good	5.303 \| good	22.961 \| good	26.814 \| good	0.977 \| good	11.983 \| good	0.169 \| good
2026-03-08T04:00:00.000Z	34 \| good	3.635 \| good	19.791 \| good	36.932 \| good	0.396 \| good	5.739 \| good	0.273 \| good
2026-03-08T05:00:00.000Z	27 \| good	3.845 \| good	21.455 \| good	29.096 \| good	0.472 \| good	14.414 \| good	0.432 \| good
2026-03-08T06:00:00.000Z	28 \| good	3.067 \| good	18.347 \| good	29.602 \| good	0.331 \| good	14.569 \| good	0.516 \| good
2026-03-08T07:00:00.000Z	27 \| good	3.407 \| good	18.279 \| good	28.689 \| good	0.327 \| good	14.591 \| good	0.516 \| good
2026-03-08T08:00:00.000Z	23 \| good	3.257 \| good	18.797 \| good	24.864 \| good	0.363 \| good	13.907 \| good	0.362 \| good
2026-03-08T09:00:00.000Z	27 \| good	4.727 \| good	25.509 \| good	23.008 \| good	0.295 \| good	10.035 \| good	0.3 \| good
2026-03-08T10:00:00.000Z	30 \| good	3.022 \| good	32.012 \| good	23.31 \| good	0.302 \| good	10.05 \| good	0.3 \| good
2026-03-08T11:00:00.000Z	31 \| good	3.431 \| good	32.773 \| good	24.039 \| good	0.309 \| good	9.746 \| good	0.301 \| good
2026-03-08T12:00:00.000Z	22 \| good	4.47 \| good	23.599 \| good	20.498 \| good	0.407 \| good	6.799 \| good	0.297 \| good
2026-03-08T13:00:00.000Z	44 \| good	7.887 \| good	34.227 \| good	20.498 \| good	0.5 \| good	5.749 \| good	0.297 \| good
2026-03-08T14:00:00.000Z	22 \| good	4.476 \| good	15.255 \| good	22.989 \| good	0.44 \| good	16.542 \| good	0.62 \| good
2026-03-08T15:00:00.000Z	38 \| good	6.618 \| good	19.463 \| good	20.529 \| good	0.612 \| good	20.001 \| good	0.745 \| good
2026-03-08T16:00:00.000Z	27 \| good	4.603 \| good	14.984 \| good	22.705 \| good	0.566 \| good	18.164 \| good	0.735 \| good
2026-03-08T17:00:00.000Z	27 \| good	4.81 \| good	14.303 \| good	25.721 \| good	0.516 \| good	12.598 \| good	0.578 \| good
2026-03-08T18:00:00.000Z	30 \| good	4.461 \| good	16.739 \| good	32.439 \| good	0.452 \| good	5.271 \| good	0.383 \| good
2026-03-08T19:00:00.000Z	38 \| good	6.651 \| good	21.532 \| good	37.734 \| good	0.381 \| good	2.406 \| good	0.269 \| good
2026-03-08T20:00:00.000Z	40 \| good	3.533 \| good	18.975 \| good	42.521 \| good	0.35 \| good	2.102 \| good	0.228 \| good
2026-03-08T21:00:00.000Z	41 \| good	2.881 \| good	12.847 \| good	43.735 \| good	0.412 \| good	1.447 \| good	0.204 \| good
2026-03-08T22:00:00.000Z	44 \| good	2.819 \| good	11.961 \| good	46.914 \| good	0.672 \| good	1.605 \| good	0.204 \| good
2026-03-08T23:00:00.000Z	45 \| good	1.013 \| good	11.036 \| good	48.655 \| good	0.421 \| good	1.768 \| good	0.194 \| good
2026-03-09T00:00:00.000Z	43 \| good	2.169 \| good	10.043 \| good	46.347 \| good	0.35 \| good	1.695 \| good	0.241 \| good
2026-03-09T01:00:00.000Z	41 \| good	2.344 \| good	10.511 \| good	43.703 \| good	0.409 \| good	2.412 \| good	0.195 \| good
2026-03-09T02:00:00.000Z	39 \| good	3.062 \| good	18.745 \| good	41.799 \| good	0.438 \| good	4.015 \| good	0.212 \| good
2026-03-09T03:00:00.000Z	52 \| moderate	9.582 \| good	42.951 \| good	29.131 \| good	2.195 \| good	41.866 \| good	0.399 \| good
2026-03-09T04:00:00.000Z	33 \| good	5.719 \| good	21.76 \| good	35.087 \| good	0.447 \| good	16.41 \| good	0.599 \| good
2026-03-09T05:00:00.000Z	38 \| good	7.03 \| good	32.908 \| good	35.946 \| good	0.569 \| good	10.612 \| good	0.445 \| good
2026-03-09T06:00:00.000Z	34 \| good	6.114 \| good	28.46 \| good	36.904 \| good	0.361 \| good	6.26 \| good	0.395 \| good
2026-03-09T07:00:00.000Z	34 \| good	6.193 \| good	30.688 \| good	36.584 \| good	0.381 \| good	6.26 \| good	0.397 \| good
2026-03-09T08:00:00.000Z	30 \| good	5.386 \| good	22.142 \| good	31.936 \| good	0.556 \| good	4.791 \| good	0.319 \| good
2026-03-09T09:00:00.000Z	33 \| good	5.574 \| good	19.502 \| good	35.698 \| good	0.515 \| good	2.91 \| good	0.217 \| good
2026-03-09T10:00:00.000Z	33 \| good	5.222 \| good	21.095 \| good	36.119 \| good	0.486 \| good	2.101 \| good	0.214 \| good
2026-03-09T11:00:00.000Z	31 \| good	5.146 \| good	19.782 \| good	33.188 \| good	0.591 \| good	3.931 \| good	0.247 \| good
2026-03-09T12:00:00.000Z	27 \| good	5.306 \| good	19.223 \| good	29.475 \| good	0.494 \| good	8.213 \| good	0.315 \| good
2026-03-09T13:00:00.000Z	28 \| good	4.966 \| good	20.965 \| good	30.033 \| good	0.497 \| good	8.213 \| good	0.315 \| good
2026-03-09T14:00:00.000Z	33 \| good	6.449 \| good	29.482 \| good	23.483 \| good	0.582 \| good	20.26 \| good	0.596 \| good
2026-03-09T15:00:00.000Z	38 \| good	7.136 \| good	25.675 \| good	19.309 \| good	0.685 \| good	24.829 \| good	0.697 \| good
2026-03-09T16:00:00.000Z	38 \| good	7.468 \| good	31.683 \| good	20.786 \| good	0.715 \| good	22.718 \| good	0.609 \| good
2026-03-09T17:00:00.000Z	44 \| good	7.621 \| good	27.102 \| good	28.082 \| good	0.726 \| good	10.267 \| good	0.386 \| good
2026-03-09T18:00:00.000Z	33 \| good	6.033 \| good	29.222 \| good	31.869 \| good	0.629 \| good	6.031 \| good	0.345 \| good
2026-03-09T19:00:00.000Z	33 \| good	5.152 \| good	25.353 \| good	36.172 \| good	0.574 \| good	4.512 \| good	0.277 \| good
2026-03-09T20:00:00.000Z	37 \| good	5.28 \| good	27.153 \| good	40.42 \| good	0.532 \| good	4.116 \| good	0.277 \| good
2026-03-09T21:00:00.000Z	42 \| good	5.427 \| good	27.807 \| good	45.051 \| good	0.542 \| good	4.183 \| good	0.325 \| good
2026-03-09T22:00:00.000Z	44 \| good	5.61 \| good	22.047 \| good	47.88 \| good	0.434 \| good	3.882 \| good	0.316 \| good
2026-03-09T23:00:00.000Z	44 \| good	4.942 \| good	27.039 \| good	47.524 \| good	0.453 \| good	5.785 \| good	0.333 \| good
2026-03-10T00:00:00.000Z	43 \| good	6.611 \| good	27.59 \| good	45.679 \| good	0.457 \| good	6.361 \| good	0.336 \| good
2026-03-10T01:00:00.000Z	42 \| good	5.886 \| good	37.182 \| good	44.824 \| good	0.406 \| good	6.199 \| good	0.321 \| good
2026-03-10T02:00:00.000Z	41 \| good	6.347 \| good	37.738 \| good	44.058 \| good	0.4 \| good	6.422 \| good	0.347 \| good
2026-03-10T03:00:00.000Z	34 \| good	4.38 \| good	18.986 \| good	37.456 \| good	3.47 \| good	18.307 \| good	0.184 \| good
2026-03-10T04:00:00.000Z	31 \| good	3.18 \| good	13.996 \| good	34.255 \| good	3.865 \| good	22.766 \| good	0.195 \| good
2026-03-10T05:00:00.000Z	27 \| good	4.919 \| good	21.061 \| good	29.345 \| good	4.26 \| good	27.226 \| good	0.206 \| good
2026-03-10T06:00:00.000Z	33 \| good	5.572 \| good	23.923 \| good	23.244 \| good	4.656 \| good	31.685 \| good	0.218 \| good
2026-03-10T07:00:00.000Z	38 \| good	6.627 \| good	29.915 \| good	16.58 \| good	4.72 \| good	34.059 \| good	0.228 \| good
2026-03-10T08:00:00.000Z	49 \| good	9.306 \| good	41.86 \| good	12.348 \| good	4.784 \| good	36.434 \| good	0.239 \| good
2026-03-10T09:00:00.000Z	52 \| moderate	10.434 \| good	46.02 \| good	10.87 \| good	4.849 \| good	38.808 \| good	0.25 \| good
2026-03-10T10:00:00.000Z	56 \| moderate	12.322 \| fine	54.977 \| good	10.83 \| good	4.761 \| good	37.366 \| good	0.251 \| good
2026-03-10T11:00:00.000Z	60 \| moderate	13.61 \| fine	60.89 \| fine	12.582 \| good	4.674 \| good	35.923 \| good	0.252 \| good
2026-03-10T12:00:00.000Z	62 \| moderate	14.667 \| fine	64.849 \| fine	8.3 \| good	4.587 \| good	34.481 \| good	0.252 \| good
2026-03-10T13:00:00.000Z	66 \| moderate	16.636 \| fine	74.581 \| fine	8.039 \| good	4.504 \| good	32.908 \| good	0.288 \| good
2026-03-10T14:00:00.000Z	67 \| moderate	18.092 \| fine	80.684 \| fine	10.202 \| good	4.422 \| good	31.336 \| good	0.323 \| good
2026-03-10T15:00:00.000Z	66 \| moderate	16.679 \| fine	74.825 \| fine	13.563 \| good	4.34 \| good	29.763 \| good	0.359 \| good
2026-03-10T16:00:00.000Z	54 \| moderate	11.124 \| good	48.951 \| good	24.725 \| good	4.949 \| good	24.473 \| good	0.3 \| good
2026-03-10T17:00:00.000Z	49 \| good	8.984 \| good	40.756 \| good	32.38 \| good	5.558 \| good	19.184 \| good	0.241 \| good
2026-03-10T18:00:00.000Z	38 \| good	6.808 \| good	29.894 \| good	35.59 \| good	6.167 \| good	13.894 \| good	0.182 \| good
2026-03-10T19:00:00.000Z	38 \| good	6.975 \| good	30.915 \| good	37.826 \| good	5.764 \| good	12.426 \| good	0.176 \| good
2026-03-10T20:00:00.000Z	37 \| good	6.26 \| good	27.863 \| good	40.1 \| good	5.362 \| good	10.958 \| good	0.17 \| good
2026-03-10T21:00:00.000Z	41 \| good	6.573 \| good	28.924 \| good	43.798 \| good	4.96 \| good	9.489 \| good	0.164 \| good
2026-03-10T22:00:00.000Z	44 \| good	5.37 \| good	23.04 \| good	47.014 \| good	4.736 \| good	9.377 \| good	0.162 \| good
2026-03-10T23:00:00.000Z	44 \| good	4.019 \| good	17.954 \| good	46.708 \| good	4.512 \| good	9.265 \| good	0.16 \| good
2026-03-11T00:00:00.000Z	42 \| good	5.491 \| good	23.914 \| good	45.327 \| good	4.289 \| good	9.152 \| good	0.157 \| good
2026-03-11T01:00:00.000Z	36 \| good	5.736 \| good	25.027 \| good	38.569 \| good	4.22 \| good	12.404 \| good	0.168 \| good
2026-03-11T02:00:00.000Z	30 \| good	3.947 \| good	17.078 \| good	31.839 \| good	4.152 \| good	15.656 \| good	0.178 \| good
2026-03-11T03:00:00.000Z	28 \| good	4.469 \| good	19.053 \| good	30.141 \| good	4.083 \| good	18.908 \| good	0.189 \| good
2026-03-11T04:00:00.000Z	27 \| good	4.52 \| good	20.005 \| good	25.304 \| good	4.365 \| good	23.914 \| good	0.202 \| good
2026-03-11T05:00:00.000Z	33 \| good	5.642 \| good	24.081 \| good	18.306 \| good	4.647 \| good	28.919 \| good	0.216 \| good
2026-03-11T06:00:00.000Z	75 \| moderate	21.533 \| fine	26.245 \| good	10.485 \| good	4.888 \| good	33.81 \| good	0.23 \| good
2026-03-11T07:00:00.000Z	49 \| good	8.55 \| good	37.008 \| good	8.148 \| good	4.757 \| good	34.898 \| good	0.24 \| good
2026-03-11T08:00:00.000Z	54 \| moderate	10.872 \| good	47.858 \| good	15.103 \| good	4.586 \| good	35.871 \| good	0.25 \| good
2026-03-11T09:00:00.000Z	54 \| moderate	10.728 \| good	47.838 \| good	12.655 \| good	4.414 \| good	36.844 \| good	0.26 \| good
2026-03-11T10:00:00.000Z	58 \| moderate	12.7 \| fine	56.968 \| fine	6.186 \| good	3.958 \| good	35.666 \| good	0.27 \| good
2026-03-11T11:00:00.000Z	58 \| moderate	13.043 \| fine	58.96 \| fine	8.14 \| good	3.502 \| good	34.487 \| good	0.28 \| good
2026-03-11T12:00:00.000Z	86 \| moderate	27.712 \| fine	29.081 \| good	2.464 \| good	3.022 \| good	33.119 \| good	0.29 \| good
2026-03-11T13:00:00.000Z	84 \| moderate	27.305 \| fine	28.604 \| good	4.116 \| good	3.31 \| good	31.435 \| good	0.303 \| good
2026-03-11T14:00:00.000Z	86 \| moderate	27.578 \| fine	28.984 \| good	5.768 \| good	3.599 \| good	29.752 \| good	0.316 \| good
2026-03-11T15:00:00.000Z	90 \| moderate	30.009 \| fine	31.838 \| good	7.42 \| good	3.888 \| good	28.068 \| good	0.329 \| good
2026-03-11T16:00:00.000Z	90 \| moderate	29.73 \| fine	31.641 \| good	17.194 \| good	4.404 \| good	24.517 \| good	0.298 \| good
2026-03-11T17:00:00.000Z	56 \| moderate	12.291 \| fine	54.898 \| good	27.517 \| good	4.982 \| good	21.158 \| good	0.269 \| good
2026-03-11T18:00:00.000Z	73 \| moderate	20.548 \| fine	25.582 \| good	36.744 \| good	5.436 \| good	17.414 \| good	0.237 \| good
2026-03-11T19:00:00.000Z	71 \| moderate	20.251 \| fine	25.141 \| good	40.761 \| good	5.668 \| good	16.676 \| good	0.229 \| good
2026-03-11T20:00:00.000Z	71 \| moderate	20.076 \| fine	24.859 \| good	44.778 \| good	5.899 \| good	15.939 \| good	0.221 \| good
2026-03-11T21:00:00.000Z	71 \| moderate	19.737 \| fine	24.405 \| good	48.796 \| good	6.131 \| good	15.201 \| good	0.212 \| good
2026-03-11T22:00:00.000Z	69 \| moderate	19.276 \| fine	23.852 \| good	49.052 \| good	6.136 \| good	15.003 \| good	0.208 \| good
2026-03-11T23:00:00.000Z	69 \| moderate	18.56 \| fine	22.961 \| good	49.308 \| good	6.142 \| good	14.805 \| good	0.203 \| good
2026-03-12T00:00:00.000Z	67 \| moderate	17.949 \| fine	22.104 \| good	49.565 \| good	6.148 \| good	14.607 \| good	0.198 \| good
2026-03-12T01:00:00.000Z	66 \| moderate	17.436 \| fine	21.202 \| good	39.566 \| good	5.922 \| good	21.266 \| good	0.222 \| good
2026-03-12T02:00:00.000Z	67 \| moderate	18.341 \| fine	21.199 \| good	29.568 \| good	5.696 \| good	27.924 \| good	0.245 \| good

Brea

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Brea, California air quality map: Track AQI near you

0.38ppm

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.

Source: Ambee Data Sources

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Frequently asked questions

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

The air quality for Brea, California is updated every hour.

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

The worst air quality in Brea, California in the last 24 hours was observed at 03:00:00 on 2026-03-09.

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

In the last 24 hrs, the best air quality in Brea, California was observed at 12:00:00 on 2026-03-09.

What is the current air quality in Brea, California?

The current air quality in Brea, California is 41, categorized as Good based on real-time data.

What pollutant is the most common in Brea, California?

The most common pollutant in Brea, California is O3.

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

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

What is the current concentration of PM_2.5 in Brea, California?

The current PM_2.5 concentration at Brea, California is 6.347 μg/m³.

What is the current concentration of PM₁₀ in Brea, California?

The current PM₁₀ concentration at Brea, California is 37.738 μg/m³.

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

The current carbon monoxide (CO) concentration at Brea, California is 0.347 ppm.

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

The current sulfur dioxide (SO₂) concentration at Brea, California is 0.4 ppb.

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

The current ozone (O₃) concentration at Brea, California is 44.058 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Brea, California is 6.422 ppb.

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