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

The current PM10 concentration at Brea, California is 40.204 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Brea, California is 0.68 ppb.

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

The current ozone (O3) concentration at Brea, California is 31.611 ppm.

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

The current nitrogen dioxide (NO2) concentration at Brea, California is 18.072 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 17.178 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)

Moderate

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)

17.18 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

40.20 μg/m³

155

255

425

605+

Ozone (O₃)

31.61 ppb

201

201+

Sulfur Dioxide (SO₂)

0.68 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

18.07 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.38 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Brea, California

Get Live Pollen Counts

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
2025-12-05T23:00:00.000Z	44 \| good	8.398 \| good	38.515 \| good	27.015 \| good	0.477 \| good	18.251 \| good	0.321 \| good
2025-12-06T00:00:00.000Z	33 \| good	6.084 \| good	31.091 \| good	28.848 \| good	0.506 \| good	23.339 \| good	0.387 \| good
2025-12-06T01:00:00.000Z	30 \| good	4.953 \| good	32.486 \| good	25.626 \| good	0.431 \| good	24.739 \| good	0.447 \| good
2025-12-06T02:00:00.000Z	32 \| good	5.143 \| good	33.06 \| good	19.111 \| good	0.391 \| good	34.204 \| good	0.586 \| good
2025-12-06T03:00:00.000Z	37 \| good	6.155 \| good	27.777 \| good	14.065 \| good	0.621 \| good	39.252 \| good	0.763 \| good
2025-12-06T04:00:00.000Z	52 \| moderate	10.24 \| good	37.79 \| good	10.827 \| good	0.966 \| good	38.677 \| good	0.767 \| good
2025-12-06T05:00:00.000Z	56 \| moderate	11.672 \| good	33.163 \| good	6.528 \| good	0.896 \| good	37.563 \| good	0.823 \| good
2025-12-06T06:00:00.000Z	58 \| moderate	13.308 \| fine	38.38 \| good	4.492 \| good	1.018 \| good	34.386 \| good	0.84 \| good
2025-12-06T07:00:00.000Z	60 \| moderate	13.852 \| fine	32.348 \| good	4.437 \| good	1.019 \| good	34.386 \| good	0.84 \| good
2025-12-06T08:00:00.000Z	62 \| moderate	15.174 \| fine	38.129 \| good	2.27 \| good	0.802 \| good	31.938 \| good	0.784 \| good
2025-12-06T09:00:00.000Z	64 \| moderate	15.764 \| fine	37.625 \| good	3.041 \| good	0.702 \| good	29.754 \| good	0.757 \| good
2025-12-06T10:00:00.000Z	60 \| moderate	13.933 \| fine	37.624 \| good	2.852 \| good	0.813 \| good	28.657 \| good	0.64 \| good
2025-12-06T11:00:00.000Z	58 \| moderate	13.169 \| fine	41.03 \| good	1.389 \| good	0.971 \| good	28.164 \| good	0.528 \| good
2025-12-06T12:00:00.000Z	66 \| moderate	17.323 \| fine	47.931 \| good	2.034 \| good	0.77 \| good	27.869 \| good	0.528 \| good
2025-12-06T13:00:00.000Z	60 \| moderate	14.099 \| fine	52.493 \| good	2.392 \| good	0.773 \| good	27.869 \| good	0.528 \| good
2025-12-06T14:00:00.000Z	60 \| moderate	14.052 \| fine	46.96 \| good	3.456 \| good	0.828 \| good	27.99 \| good	0.567 \| good
2025-12-06T15:00:00.000Z	62 \| moderate	15.116 \| fine	48.975 \| good	3.733 \| good	0.958 \| good	28.529 \| good	0.734 \| good
2025-12-06T16:00:00.000Z	60 \| moderate	13.679 \| fine	43.526 \| good	4.934 \| good	1.037 \| good	28.473 \| good	0.785 \| good
2025-12-06T17:00:00.000Z	60 \| moderate	13.58 \| fine	46.307 \| good	10.174 \| good	0.888 \| good	27.546 \| good	0.658 \| good
2025-12-06T18:00:00.000Z	52 \| moderate	10.118 \| good	35.794 \| good	17.22 \| good	0.746 \| good	22.513 \| good	0.462 \| good
2025-12-06T19:00:00.000Z	49 \| good	8.701 \| good	32.893 \| good	21.056 \| good	1.21 \| good	20.159 \| good	0.435 \| good
2025-12-06T20:00:00.000Z	49 \| good	8.605 \| good	39.484 \| good	26.726 \| good	0.954 \| good	17.221 \| good	0.433 \| good
2025-12-06T21:00:00.000Z	44 \| good	7.592 \| good	27.092 \| good	31.774 \| good	1.025 \| good	17.211 \| good	0.391 \| good
2025-12-06T22:00:00.000Z	31 \| good	5.335 \| good	20.981 \| good	33.152 \| good	0.466 \| good	13.773 \| good	0.323 \| good
2025-12-06T23:00:00.000Z	33 \| good	3.372 \| good	18.413 \| good	35.561 \| good	0.747 \| good	12.952 \| good	0.327 \| good
2025-12-07T00:00:00.000Z	33 \| good	3.598 \| good	14.818 \| good	35.702 \| good	0.804 \| good	14.961 \| good	0.327 \| good
2025-12-07T01:00:00.000Z	32 \| good	4.944 \| good	26.62 \| good	34.693 \| good	0.837 \| good	16.652 \| good	0.333 \| good
2025-12-07T02:00:00.000Z	33 \| good	6.184 \| good	25.207 \| good	30.905 \| good	0.798 \| good	20.632 \| good	0.417 \| good
2025-12-07T03:00:00.000Z	44 \| good	7.796 \| good	36.67 \| good	26.409 \| good	0.772 \| good	21.982 \| good	0.519 \| good
2025-12-07T04:00:00.000Z	49 \| good	8.924 \| good	38.366 \| good	23.894 \| good	0.931 \| good	24.72 \| good	0.54 \| good
2025-12-07T05:00:00.000Z	69 \| moderate	18.578 \| fine	49.052 \| good	21.555 \| good	0.752 \| good	29.65 \| good	0.709 \| good
2025-12-07T06:00:00.000Z	66 \| moderate	17.376 \| fine	38.8 \| good	15.187 \| good	0.875 \| good	31.023 \| good	0.897 \| good
2025-12-07T07:00:00.000Z	73 \| moderate	21.068 \| fine	75.738 \| fine	14.103 \| good	0.884 \| good	31.023 \| good	0.897 \| good
2025-12-07T08:00:00.000Z	67 \| moderate	17.516 \| fine	51.11 \| good	11.3 \| good	0.986 \| good	27.727 \| good	0.76 \| good
2025-12-07T09:00:00.000Z	64 \| moderate	15.743 \| fine	33.487 \| good	6.28 \| good	0.682 \| good	26.267 \| good	0.712 \| good
2025-12-07T10:00:00.000Z	67 \| moderate	18.261 \| fine	40.056 \| good	3.991 \| good	0.935 \| good	25.081 \| good	0.612 \| good
2025-12-07T11:00:00.000Z	71 \| moderate	20.304 \| fine	35.979 \| good	3.075 \| good	0.931 \| good	25.081 \| good	0.612 \| good
2025-12-07T12:00:00.000Z	73 \| moderate	20.707 \| fine	43.414 \| good	2.516 \| good	0.927 \| good	25.081 \| good	0.612 \| good
2025-12-07T13:00:00.000Z	71 \| moderate	19.55 \| fine	42.338 \| good	3.666 \| good	0.829 \| good	5.687 \| good	0.599 \| good
2025-12-07T14:00:00.000Z	67 \| moderate	18.085 \| fine	52.663 \| good	2.268 \| good	0.6 \| good	24.242 \| good	0.512 \| good
2025-12-07T15:00:00.000Z	66 \| moderate	16.782 \| fine	45.536 \| good	2.595 \| good	0.721 \| good	24.426 \| good	0.608 \| good
2025-12-07T16:00:00.000Z	66 \| moderate	17.162 \| fine	57.595 \| fine	3.075 \| good	0.736 \| good	23.981 \| good	0.653 \| good
2025-12-07T17:00:00.000Z	69 \| moderate	18.672 \| fine	53.814 \| good	11.264 \| good	0.645 \| good	23.218 \| good	0.62 \| good
2025-12-07T18:00:00.000Z	71 \| moderate	19.542 \| fine	44.204 \| good	18.43 \| good	0.56 \| good	20.663 \| good	0.502 \| good
2025-12-07T19:00:00.000Z	62 \| moderate	15.43 \| fine	44.616 \| good	19.805 \| good	0.76 \| good	19.926 \| good	0.461 \| good
2025-12-07T20:00:00.000Z	64 \| moderate	15.529 \| fine	45.943 \| good	28.905 \| good	1.002 \| good	20.849 \| good	0.511 \| good
2025-12-07T21:00:00.000Z	66 \| moderate	16.776 \| fine	39.041 \| good	33.176 \| good	0.703 \| good	19.118 \| good	0.448 \| good
2025-12-07T22:00:00.000Z	66 \| moderate	17.178 \| fine	40.204 \| good	31.611 \| good	0.68 \| good	18.072 \| good	0.383 \| good
2025-12-07T23:00:00.000Z	97 \| moderate	33.991 \| fine	148.298 \| fine	46.822 \| good	4.942 \| good	28.303 \| good	0.283 \| good
2025-12-08T00:00:00.000Z	94 \| moderate	31.642 \| fine	137.845 \| fine	40.548 \| good	5.33 \| good	33.046 \| good	0.311 \| good
2025-12-08T01:00:00.000Z	92 \| moderate	30.512 \| fine	132.298 \| fine	28.563 \| good	5.395 \| good	36.943 \| good	0.395 \| good
2025-12-08T02:00:00.000Z	92 \| moderate	31.035 \| fine	134.734 \| fine	20.312 \| good	5.461 \| good	40.841 \| good	0.48 \| good
2025-12-08T03:00:00.000Z	102 \| sensitive	35.593 \| moderate	155.065 \| moderate	10.114 \| good	5.527 \| good	44.738 \| good	0.565 \| good
2025-12-08T04:00:00.000Z	122 \| sensitive	43.628 \| moderate	194.917 \| moderate	5.741 \| good	5.022 \| good	42.459 \| good	0.562 \| good
2025-12-08T05:00:00.000Z	134 \| sensitive	49.014 \| moderate	221.472 \| moderate	3.019 \| good	4.518 \| good	40.181 \| good	0.559 \| good
2025-12-08T06:00:00.000Z	139 \| sensitive	50.51 \| moderate	228.802 \| moderate	3.854 \| good	4.013 \| good	37.902 \| good	0.557 \| good
2025-12-08T07:00:00.000Z	142 \| sensitive	51.994 \| moderate	235.588 \| moderate	3.128 \| good	3.48 \| good	36.324 \| good	0.505 \| good
2025-12-08T08:00:00.000Z	153 \| unhealthy	58.006 \| poor	255.532 \| poor	3.048 \| good	2.947 \| good	34.746 \| good	0.454 \| good
2025-12-08T09:00:00.000Z	154 \| unhealthy	60.459 \| poor	259.182 \| poor	2.819 \| good	2.415 \| good	33.168 \| good	0.403 \| good
2025-12-08T10:00:00.000Z	156 \| unhealthy	61.923 \| poor	261.162 \| poor	4.734 \| good	2.221 \| good	31.519 \| good	0.358 \| good
2025-12-08T11:00:00.000Z	156 \| unhealthy	61.889 \| poor	260.221 \| poor	2.997 \| good	2.027 \| good	29.87 \| good	0.313 \| good
2025-12-08T12:00:00.000Z	152 \| unhealthy	57.475 \| poor	253.276 \| moderate	3.459 \| good	1.833 \| good	28.222 \| good	0.268 \| good
2025-12-08T13:00:00.000Z	147 \| sensitive	53.82 \| moderate	240.99 \| moderate	3.159 \| good	1.932 \| good	27.671 \| good	0.262 \| good
2025-12-08T14:00:00.000Z	117 \| sensitive	42.267 \| moderate	188.223 \| moderate	2.407 \| good	2.031 \| good	27.121 \| good	0.256 \| good
2025-12-08T15:00:00.000Z	94 \| moderate	32.098 \| fine	140.46 \| fine	2.457 \| good	2.131 \| good	26.571 \| good	0.25 \| good
2025-12-08T16:00:00.000Z	73 \| moderate	20.752 \| fine	90.681 \| fine	5.013 \| good	2.309 \| good	23.961 \| good	0.257 \| good
2025-12-08T17:00:00.000Z	64 \| moderate	15.94 \| fine	70.842 \| fine	16.274 \| good	2.486 \| good	21.351 \| good	0.263 \| good
2025-12-08T18:00:00.000Z	38 \| good	7.125 \| good	31.307 \| good	25.478 \| good	2.664 \| good	18.741 \| good	0.27 \| good
2025-12-08T19:00:00.000Z	28 \| good	3.934 \| good	17.26 \| good	30.012 \| good	2.817 \| good	17.641 \| good	0.25 \| good
2025-12-08T20:00:00.000Z	31 \| good	3.785 \| good	16.58 \| good	34.171 \| good	2.97 \| good	16.54 \| good	0.23 \| good
2025-12-08T21:00:00.000Z	34 \| good	3.027 \| good	12.842 \| good	36.977 \| good	3.122 \| good	15.44 \| good	0.21 \| good
2025-12-08T22:00:00.000Z	35 \| good	4.821 \| good	20.901 \| good	37.584 \| good	3.413 \| good	19.338 \| good	0.228 \| good
2025-12-08T23:00:00.000Z	49 \| good	8.827 \| good	39.169 \| good	33.418 \| good	3.705 \| good	23.236 \| good	0.245 \| good
2025-12-09T00:00:00.000Z	58 \| moderate	12.57 \| fine	55.956 \| fine	25.994 \| good	3.996 \| good	27.134 \| good	0.262 \| good
2025-12-09T01:00:00.000Z	64 \| moderate	16.382 \| fine	72.834 \| fine	17.336 \| good	3.956 \| good	30.077 \| good	0.301 \| good
2025-12-09T02:00:00.000Z	67 \| moderate	18.051 \| fine	80.174 \| fine	12.39 \| good	3.916 \| good	33.02 \| good	0.341 \| good
2025-12-09T03:00:00.000Z	66 \| moderate	17.01 \| fine	74.968 \| fine	5.53 \| good	3.876 \| good	35.963 \| good	0.38 \| good
2025-12-09T04:00:00.000Z	58 \| moderate	12.517 \| fine	55.869 \| fine	8.685 \| good	3.497 \| good	34.384 \| good	0.357 \| good
2025-12-09T05:00:00.000Z	44 \| good	8.409 \| good	37.358 \| good	10.218 \| good	3.119 \| good	32.806 \| good	0.333 \| good
2025-12-09T06:00:00.000Z	33 \| good	5.82 \| good	25.504 \| good	12.528 \| good	2.741 \| good	31.227 \| good	0.309 \| good
2025-12-09T07:00:00.000Z	33 \| good	5.709 \| good	24.773 \| good	8.827 \| good	2.344 \| good	28.939 \| good	0.275 \| good
2025-12-09T08:00:00.000Z	44 \| good	7.651 \| good	33.764 \| good	8.023 \| good	1.946 \| good	26.651 \| good	0.242 \| good
2025-12-09T09:00:00.000Z	49 \| good	9.121 \| good	40.222 \| good	5.154 \| good	1.549 \| good	24.363 \| good	0.208 \| good
2025-12-09T10:00:00.000Z	49 \| good	9.206 \| good	40.77 \| good	3.697 \| good	1.527 \| good	21.172 \| good	0.187 \| good
2025-12-09T11:00:00.000Z	52 \| moderate	9.796 \| good	43.535 \| good	2.73 \| good	1.505 \| good	17.98 \| good	0.165 \| good
2025-12-09T12:00:00.000Z	54 \| moderate	10.938 \| good	48.832 \| good	2.393 \| good	1.483 \| good	14.789 \| good	0.143 \| good
2025-12-09T13:00:00.000Z	22 \| good	4.499 \| good	19.586 \| good	3.891 \| good	1.64 \| good	16.755 \| good	0.154 \| good
2025-12-09T14:00:00.000Z	33 \| good	5.961 \| good	26.419 \| good	2.745 \| good	1.797 \| good	18.721 \| good	0.165 \| good
2025-12-09T15:00:00.000Z	22 \| good	4.319 \| good	19.089 \| good	2.738 \| good	1.954 \| good	20.687 \| good	0.176 \| good
2025-12-09T16:00:00.000Z	22 \| good	4.468 \| good	19.58 \| good	3.669 \| good	2.196 \| good	19.714 \| good	0.193 \| good
2025-12-09T17:00:00.000Z	22 \| good	3.53 \| good	15.385 \| good	11.139 \| good	2.438 \| good	18.742 \| good	0.21 \| good
2025-12-09T18:00:00.000Z	17 \| good	1.857 \| good	7.569 \| good	18.445 \| good	2.68 \| good	17.769 \| good	0.227 \| good
2025-12-09T19:00:00.000Z	22 \| good	1.927 \| good	8.074 \| good	23.809 \| good	2.936 \| good	16.853 \| good	0.21 \| good
2025-12-09T20:00:00.000Z	26 \| good	1.742 \| good	7.119 \| good	28.145 \| good	3.192 \| good	15.937 \| good	0.194 \| good
2025-12-09T21:00:00.000Z	29 \| good	1.137 \| good	4.572 \| good	30.993 \| good	3.449 \| good	15.02 \| good	0.178 \| good
2025-12-09T22:00:00.000Z	30 \| good	1.624 \| good	6.471 \| good	32.1 \| good	3.733 \| good	19.208 \| good	0.2 \| good

Brea

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Brea, California air quality map: Track AQI near you

0.42ppm

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 12:00:00 on 2025-12-07.

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 10:00:00 on 2025-12-06.

What is the current air quality in Brea, California?

The current air quality in Brea, California is 66, categorized as Moderate based on real-time data.

What pollutant is the most common in Brea, California?

The most common pollutant in Brea, California is PM2.5.

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 17.178 μg/m³.

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

The current PM₁₀ concentration at Brea, California is 40.204 μg/m³.

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

The current carbon monoxide (CO) concentration at Brea, California is 0.383 ppm.

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

The current sulfur dioxide (SO₂) concentration at Brea, California is 0.68 ppb.

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

The current ozone (O₃) concentration at Brea, California is 31.611 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Brea, California is 18.072 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-12-05T23:00:00.000Z	44 \| good	8.398 \| good	38.515 \| good	27.015 \| good	0.477 \| good	18.251 \| good	0.321 \| good
2025-12-06T00:00:00.000Z	33 \| good	6.084 \| good	31.091 \| good	28.848 \| good	0.506 \| good	23.339 \| good	0.387 \| good
2025-12-06T01:00:00.000Z	30 \| good	4.953 \| good	32.486 \| good	25.626 \| good	0.431 \| good	24.739 \| good	0.447 \| good
2025-12-06T02:00:00.000Z	32 \| good	5.143 \| good	33.06 \| good	19.111 \| good	0.391 \| good	34.204 \| good	0.586 \| good
2025-12-06T03:00:00.000Z	37 \| good	6.155 \| good	27.777 \| good	14.065 \| good	0.621 \| good	39.252 \| good	0.763 \| good
2025-12-06T04:00:00.000Z	52 \| moderate	10.24 \| good	37.79 \| good	10.827 \| good	0.966 \| good	38.677 \| good	0.767 \| good
2025-12-06T05:00:00.000Z	56 \| moderate	11.672 \| good	33.163 \| good	6.528 \| good	0.896 \| good	37.563 \| good	0.823 \| good
2025-12-06T06:00:00.000Z	58 \| moderate	13.308 \| fine	38.38 \| good	4.492 \| good	1.018 \| good	34.386 \| good	0.84 \| good
2025-12-06T07:00:00.000Z	60 \| moderate	13.852 \| fine	32.348 \| good	4.437 \| good	1.019 \| good	34.386 \| good	0.84 \| good
2025-12-06T08:00:00.000Z	62 \| moderate	15.174 \| fine	38.129 \| good	2.27 \| good	0.802 \| good	31.938 \| good	0.784 \| good
2025-12-06T09:00:00.000Z	64 \| moderate	15.764 \| fine	37.625 \| good	3.041 \| good	0.702 \| good	29.754 \| good	0.757 \| good
2025-12-06T10:00:00.000Z	60 \| moderate	13.933 \| fine	37.624 \| good	2.852 \| good	0.813 \| good	28.657 \| good	0.64 \| good
2025-12-06T11:00:00.000Z	58 \| moderate	13.169 \| fine	41.03 \| good	1.389 \| good	0.971 \| good	28.164 \| good	0.528 \| good
2025-12-06T12:00:00.000Z	66 \| moderate	17.323 \| fine	47.931 \| good	2.034 \| good	0.77 \| good	27.869 \| good	0.528 \| good
2025-12-06T13:00:00.000Z	60 \| moderate	14.099 \| fine	52.493 \| good	2.392 \| good	0.773 \| good	27.869 \| good	0.528 \| good
2025-12-06T14:00:00.000Z	60 \| moderate	14.052 \| fine	46.96 \| good	3.456 \| good	0.828 \| good	27.99 \| good	0.567 \| good
2025-12-06T15:00:00.000Z	62 \| moderate	15.116 \| fine	48.975 \| good	3.733 \| good	0.958 \| good	28.529 \| good	0.734 \| good
2025-12-06T16:00:00.000Z	60 \| moderate	13.679 \| fine	43.526 \| good	4.934 \| good	1.037 \| good	28.473 \| good	0.785 \| good
2025-12-06T17:00:00.000Z	60 \| moderate	13.58 \| fine	46.307 \| good	10.174 \| good	0.888 \| good	27.546 \| good	0.658 \| good
2025-12-06T18:00:00.000Z	52 \| moderate	10.118 \| good	35.794 \| good	17.22 \| good	0.746 \| good	22.513 \| good	0.462 \| good
2025-12-06T19:00:00.000Z	49 \| good	8.701 \| good	32.893 \| good	21.056 \| good	1.21 \| good	20.159 \| good	0.435 \| good
2025-12-06T20:00:00.000Z	49 \| good	8.605 \| good	39.484 \| good	26.726 \| good	0.954 \| good	17.221 \| good	0.433 \| good
2025-12-06T21:00:00.000Z	44 \| good	7.592 \| good	27.092 \| good	31.774 \| good	1.025 \| good	17.211 \| good	0.391 \| good
2025-12-06T22:00:00.000Z	31 \| good	5.335 \| good	20.981 \| good	33.152 \| good	0.466 \| good	13.773 \| good	0.323 \| good
2025-12-06T23:00:00.000Z	33 \| good	3.372 \| good	18.413 \| good	35.561 \| good	0.747 \| good	12.952 \| good	0.327 \| good
2025-12-07T00:00:00.000Z	33 \| good	3.598 \| good	14.818 \| good	35.702 \| good	0.804 \| good	14.961 \| good	0.327 \| good
2025-12-07T01:00:00.000Z	32 \| good	4.944 \| good	26.62 \| good	34.693 \| good	0.837 \| good	16.652 \| good	0.333 \| good
2025-12-07T02:00:00.000Z	33 \| good	6.184 \| good	25.207 \| good	30.905 \| good	0.798 \| good	20.632 \| good	0.417 \| good
2025-12-07T03:00:00.000Z	44 \| good	7.796 \| good	36.67 \| good	26.409 \| good	0.772 \| good	21.982 \| good	0.519 \| good
2025-12-07T04:00:00.000Z	49 \| good	8.924 \| good	38.366 \| good	23.894 \| good	0.931 \| good	24.72 \| good	0.54 \| good
2025-12-07T05:00:00.000Z	69 \| moderate	18.578 \| fine	49.052 \| good	21.555 \| good	0.752 \| good	29.65 \| good	0.709 \| good
2025-12-07T06:00:00.000Z	66 \| moderate	17.376 \| fine	38.8 \| good	15.187 \| good	0.875 \| good	31.023 \| good	0.897 \| good
2025-12-07T07:00:00.000Z	73 \| moderate	21.068 \| fine	75.738 \| fine	14.103 \| good	0.884 \| good	31.023 \| good	0.897 \| good
2025-12-07T08:00:00.000Z	67 \| moderate	17.516 \| fine	51.11 \| good	11.3 \| good	0.986 \| good	27.727 \| good	0.76 \| good
2025-12-07T09:00:00.000Z	64 \| moderate	15.743 \| fine	33.487 \| good	6.28 \| good	0.682 \| good	26.267 \| good	0.712 \| good
2025-12-07T10:00:00.000Z	67 \| moderate	18.261 \| fine	40.056 \| good	3.991 \| good	0.935 \| good	25.081 \| good	0.612 \| good
2025-12-07T11:00:00.000Z	71 \| moderate	20.304 \| fine	35.979 \| good	3.075 \| good	0.931 \| good	25.081 \| good	0.612 \| good
2025-12-07T12:00:00.000Z	73 \| moderate	20.707 \| fine	43.414 \| good	2.516 \| good	0.927 \| good	25.081 \| good	0.612 \| good
2025-12-07T13:00:00.000Z	71 \| moderate	19.55 \| fine	42.338 \| good	3.666 \| good	0.829 \| good	5.687 \| good	0.599 \| good
2025-12-07T14:00:00.000Z	67 \| moderate	18.085 \| fine	52.663 \| good	2.268 \| good	0.6 \| good	24.242 \| good	0.512 \| good
2025-12-07T15:00:00.000Z	66 \| moderate	16.782 \| fine	45.536 \| good	2.595 \| good	0.721 \| good	24.426 \| good	0.608 \| good
2025-12-07T16:00:00.000Z	66 \| moderate	17.162 \| fine	57.595 \| fine	3.075 \| good	0.736 \| good	23.981 \| good	0.653 \| good
2025-12-07T17:00:00.000Z	69 \| moderate	18.672 \| fine	53.814 \| good	11.264 \| good	0.645 \| good	23.218 \| good	0.62 \| good
2025-12-07T18:00:00.000Z	71 \| moderate	19.542 \| fine	44.204 \| good	18.43 \| good	0.56 \| good	20.663 \| good	0.502 \| good
2025-12-07T19:00:00.000Z	62 \| moderate	15.43 \| fine	44.616 \| good	19.805 \| good	0.76 \| good	19.926 \| good	0.461 \| good
2025-12-07T20:00:00.000Z	64 \| moderate	15.529 \| fine	45.943 \| good	28.905 \| good	1.002 \| good	20.849 \| good	0.511 \| good
2025-12-07T21:00:00.000Z	66 \| moderate	16.776 \| fine	39.041 \| good	33.176 \| good	0.703 \| good	19.118 \| good	0.448 \| good
2025-12-07T22:00:00.000Z	66 \| moderate	17.178 \| fine	40.204 \| good	31.611 \| good	0.68 \| good	18.072 \| good	0.383 \| good
2025-12-07T23:00:00.000Z	97 \| moderate	33.991 \| fine	148.298 \| fine	46.822 \| good	4.942 \| good	28.303 \| good	0.283 \| good
2025-12-08T00:00:00.000Z	94 \| moderate	31.642 \| fine	137.845 \| fine	40.548 \| good	5.33 \| good	33.046 \| good	0.311 \| good
2025-12-08T01:00:00.000Z	92 \| moderate	30.512 \| fine	132.298 \| fine	28.563 \| good	5.395 \| good	36.943 \| good	0.395 \| good
2025-12-08T02:00:00.000Z	92 \| moderate	31.035 \| fine	134.734 \| fine	20.312 \| good	5.461 \| good	40.841 \| good	0.48 \| good
2025-12-08T03:00:00.000Z	102 \| sensitive	35.593 \| moderate	155.065 \| moderate	10.114 \| good	5.527 \| good	44.738 \| good	0.565 \| good
2025-12-08T04:00:00.000Z	122 \| sensitive	43.628 \| moderate	194.917 \| moderate	5.741 \| good	5.022 \| good	42.459 \| good	0.562 \| good
2025-12-08T05:00:00.000Z	134 \| sensitive	49.014 \| moderate	221.472 \| moderate	3.019 \| good	4.518 \| good	40.181 \| good	0.559 \| good
2025-12-08T06:00:00.000Z	139 \| sensitive	50.51 \| moderate	228.802 \| moderate	3.854 \| good	4.013 \| good	37.902 \| good	0.557 \| good
2025-12-08T07:00:00.000Z	142 \| sensitive	51.994 \| moderate	235.588 \| moderate	3.128 \| good	3.48 \| good	36.324 \| good	0.505 \| good
2025-12-08T08:00:00.000Z	153 \| unhealthy	58.006 \| poor	255.532 \| poor	3.048 \| good	2.947 \| good	34.746 \| good	0.454 \| good
2025-12-08T09:00:00.000Z	154 \| unhealthy	60.459 \| poor	259.182 \| poor	2.819 \| good	2.415 \| good	33.168 \| good	0.403 \| good
2025-12-08T10:00:00.000Z	156 \| unhealthy	61.923 \| poor	261.162 \| poor	4.734 \| good	2.221 \| good	31.519 \| good	0.358 \| good
2025-12-08T11:00:00.000Z	156 \| unhealthy	61.889 \| poor	260.221 \| poor	2.997 \| good	2.027 \| good	29.87 \| good	0.313 \| good
2025-12-08T12:00:00.000Z	152 \| unhealthy	57.475 \| poor	253.276 \| moderate	3.459 \| good	1.833 \| good	28.222 \| good	0.268 \| good
2025-12-08T13:00:00.000Z	147 \| sensitive	53.82 \| moderate	240.99 \| moderate	3.159 \| good	1.932 \| good	27.671 \| good	0.262 \| good
2025-12-08T14:00:00.000Z	117 \| sensitive	42.267 \| moderate	188.223 \| moderate	2.407 \| good	2.031 \| good	27.121 \| good	0.256 \| good
2025-12-08T15:00:00.000Z	94 \| moderate	32.098 \| fine	140.46 \| fine	2.457 \| good	2.131 \| good	26.571 \| good	0.25 \| good
2025-12-08T16:00:00.000Z	73 \| moderate	20.752 \| fine	90.681 \| fine	5.013 \| good	2.309 \| good	23.961 \| good	0.257 \| good
2025-12-08T17:00:00.000Z	64 \| moderate	15.94 \| fine	70.842 \| fine	16.274 \| good	2.486 \| good	21.351 \| good	0.263 \| good
2025-12-08T18:00:00.000Z	38 \| good	7.125 \| good	31.307 \| good	25.478 \| good	2.664 \| good	18.741 \| good	0.27 \| good
2025-12-08T19:00:00.000Z	28 \| good	3.934 \| good	17.26 \| good	30.012 \| good	2.817 \| good	17.641 \| good	0.25 \| good
2025-12-08T20:00:00.000Z	31 \| good	3.785 \| good	16.58 \| good	34.171 \| good	2.97 \| good	16.54 \| good	0.23 \| good
2025-12-08T21:00:00.000Z	34 \| good	3.027 \| good	12.842 \| good	36.977 \| good	3.122 \| good	15.44 \| good	0.21 \| good
2025-12-08T22:00:00.000Z	35 \| good	4.821 \| good	20.901 \| good	37.584 \| good	3.413 \| good	19.338 \| good	0.228 \| good
2025-12-08T23:00:00.000Z	49 \| good	8.827 \| good	39.169 \| good	33.418 \| good	3.705 \| good	23.236 \| good	0.245 \| good
2025-12-09T00:00:00.000Z	58 \| moderate	12.57 \| fine	55.956 \| fine	25.994 \| good	3.996 \| good	27.134 \| good	0.262 \| good
2025-12-09T01:00:00.000Z	64 \| moderate	16.382 \| fine	72.834 \| fine	17.336 \| good	3.956 \| good	30.077 \| good	0.301 \| good
2025-12-09T02:00:00.000Z	67 \| moderate	18.051 \| fine	80.174 \| fine	12.39 \| good	3.916 \| good	33.02 \| good	0.341 \| good
2025-12-09T03:00:00.000Z	66 \| moderate	17.01 \| fine	74.968 \| fine	5.53 \| good	3.876 \| good	35.963 \| good	0.38 \| good
2025-12-09T04:00:00.000Z	58 \| moderate	12.517 \| fine	55.869 \| fine	8.685 \| good	3.497 \| good	34.384 \| good	0.357 \| good
2025-12-09T05:00:00.000Z	44 \| good	8.409 \| good	37.358 \| good	10.218 \| good	3.119 \| good	32.806 \| good	0.333 \| good
2025-12-09T06:00:00.000Z	33 \| good	5.82 \| good	25.504 \| good	12.528 \| good	2.741 \| good	31.227 \| good	0.309 \| good
2025-12-09T07:00:00.000Z	33 \| good	5.709 \| good	24.773 \| good	8.827 \| good	2.344 \| good	28.939 \| good	0.275 \| good
2025-12-09T08:00:00.000Z	44 \| good	7.651 \| good	33.764 \| good	8.023 \| good	1.946 \| good	26.651 \| good	0.242 \| good
2025-12-09T09:00:00.000Z	49 \| good	9.121 \| good	40.222 \| good	5.154 \| good	1.549 \| good	24.363 \| good	0.208 \| good
2025-12-09T10:00:00.000Z	49 \| good	9.206 \| good	40.77 \| good	3.697 \| good	1.527 \| good	21.172 \| good	0.187 \| good
2025-12-09T11:00:00.000Z	52 \| moderate	9.796 \| good	43.535 \| good	2.73 \| good	1.505 \| good	17.98 \| good	0.165 \| good
2025-12-09T12:00:00.000Z	54 \| moderate	10.938 \| good	48.832 \| good	2.393 \| good	1.483 \| good	14.789 \| good	0.143 \| good
2025-12-09T13:00:00.000Z	22 \| good	4.499 \| good	19.586 \| good	3.891 \| good	1.64 \| good	16.755 \| good	0.154 \| good
2025-12-09T14:00:00.000Z	33 \| good	5.961 \| good	26.419 \| good	2.745 \| good	1.797 \| good	18.721 \| good	0.165 \| good
2025-12-09T15:00:00.000Z	22 \| good	4.319 \| good	19.089 \| good	2.738 \| good	1.954 \| good	20.687 \| good	0.176 \| good
2025-12-09T16:00:00.000Z	22 \| good	4.468 \| good	19.58 \| good	3.669 \| good	2.196 \| good	19.714 \| good	0.193 \| good
2025-12-09T17:00:00.000Z	22 \| good	3.53 \| good	15.385 \| good	11.139 \| good	2.438 \| good	18.742 \| good	0.21 \| good
2025-12-09T18:00:00.000Z	17 \| good	1.857 \| good	7.569 \| good	18.445 \| good	2.68 \| good	17.769 \| good	0.227 \| good
2025-12-09T19:00:00.000Z	22 \| good	1.927 \| good	8.074 \| good	23.809 \| good	2.936 \| good	16.853 \| good	0.21 \| good
2025-12-09T20:00:00.000Z	26 \| good	1.742 \| good	7.119 \| good	28.145 \| good	3.192 \| good	15.937 \| good	0.194 \| good
2025-12-09T21:00:00.000Z	29 \| good	1.137 \| good	4.572 \| good	30.993 \| good	3.449 \| good	15.02 \| good	0.178 \| good
2025-12-09T22:00:00.000Z	30 \| good	1.624 \| good	6.471 \| good	32.1 \| good	3.733 \| good	19.208 \| good	0.2 \| good

Brea, California live air quality index now

Major air pollutants in Brea, California

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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Air quality in nearby cities

La Habra, California

Fullerton, California

Placentia, California

Rowland Heights, California

East Whittier, California

Yorba Linda, California

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

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Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

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

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