What are the current PM10 levels at Millbrae, California?

The current PM10 levels in Millbrae, California are 22.764 μg/m3.

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

The current sulfur dioxide (SO2) levels in Millbrae, California are 0.429 ppb.

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

The current ozone (O3) levels at Millbrae, California is 26.874 ppm.

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

The current nitrogen dioxide (NO2) levels at Millbrae, California is 6.55 ppb.

Real-time air quality index in Millbrae, California today

Q: What are the current PM2.5 levels in Millbrae, California?

The measured PM2.5 levels in Millbrae, California at present are 8.879 μg/m3.

Stay updated with real-time air quality in Millbrae, 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

Millbrae, California

Last updated: ... (Local time)

Common air pollutants in Millbrae, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

8.88 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

22.76 μg/m³

155

255

425

605+

Ozone (O₃)

26.87 ppb

201

201+

Sulfur Dioxide (SO₂)

0.43 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

6.55 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.40 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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Millbrae, California

Scroll To Air Quality Map

Track live Millbrae, California air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-03-08T00:00:00.000Z	33 \| good	3.075 \| good	15.389 \| good	35.914 \| good	0.35 \| good	1.993 \| good	0.355 \| good
2026-03-08T01:00:00.000Z	34 \| good	3.368 \| good	18.607 \| good	37.248 \| good	0.287 \| good	4.42 \| good	0.378 \| good
2026-03-08T02:00:00.000Z	30 \| good	3.71 \| good	20.168 \| good	31.757 \| good	0.31 \| good	7.093 \| good	0.454 \| good
2026-03-08T03:00:00.000Z	38 \| good	7.184 \| good	31.781 \| good	25.946 \| good	1.526 \| good	32.253 \| good	0.319 \| good
2026-03-08T04:00:00.000Z	25 \| good	2.873 \| good	13.492 \| good	27.212 \| good	0.405 \| good	12.821 \| good	0.638 \| good
2026-03-08T05:00:00.000Z	22 \| good	3.277 \| good	18.077 \| good	23.739 \| good	0.504 \| good	9.881 \| good	0.714 \| good
2026-03-08T06:00:00.000Z	27 \| good	4.72 \| good	16.618 \| good	20.113 \| good	0.513 \| good	11.975 \| good	0.594 \| good
2026-03-08T07:00:00.000Z	27 \| good	4.658 \| good	13.695 \| good	22.911 \| good	0.476 \| good	11.535 \| good	0.594 \| good
2026-03-08T08:00:00.000Z	38 \| good	6.769 \| good	21.463 \| good	18.899 \| good	0.463 \| good	12.027 \| good	0.673 \| good
2026-03-08T09:00:00.000Z	22 \| good	4.401 \| good	18.113 \| good	17.942 \| good	0.493 \| good	12.717 \| good	0.673 \| good
2026-03-08T10:00:00.000Z	16 \| good	2.76 \| good	7.805 \| good	16.589 \| good	0.348 \| good	9.221 \| good	0.228 \| good
2026-03-08T11:00:00.000Z	44 \| good	8.122 \| good	14.987 \| good	19.764 \| good	0.377 \| good	7.268 \| good	0.2 \| good
2026-03-08T12:00:00.000Z	44 \| good	8.34 \| good	34.471 \| good	24.923 \| good	0.175 \| good	14.911 \| good	0.599 \| good
2026-03-08T13:00:00.000Z	27 \| good	4.802 \| good	26.252 \| good	20.46 \| good	0.455 \| good	11.015 \| good	0.607 \| good
2026-03-08T14:00:00.000Z	38 \| good	7.161 \| good	28.965 \| good	12.717 \| good	0.491 \| good	11.331 \| good	0.726 \| good
2026-03-08T15:00:00.000Z	49 \| good	8.584 \| good	39.173 \| good	8.667 \| good	0.529 \| good	11.864 \| good	0.758 \| good
2026-03-08T16:00:00.000Z	49 \| good	8.734 \| good	42.326 \| good	6.788 \| good	0.551 \| good	12.496 \| good	0.693 \| good
2026-03-08T17:00:00.000Z	38 \| good	7.131 \| good	26.168 \| good	11.357 \| good	1.002 \| good	9.911 \| good	0.613 \| good
2026-03-08T18:00:00.000Z	49 \| good	9.464 \| good	48.22 \| good	16.322 \| good	1.221 \| good	12.145 \| good	0.632 \| good
2026-03-08T19:00:00.000Z	44 \| good	7.644 \| good	34.456 \| good	19.374 \| good	1.222 \| good	9.822 \| good	0.554 \| good
2026-03-08T20:00:00.000Z	38 \| good	7.279 \| good	31.731 \| good	23.811 \| good	1.17 \| good	9.006 \| good	0.519 \| good
2026-03-08T21:00:00.000Z	38 \| good	6.999 \| good	22.407 \| good	26.356 \| good	0.848 \| good	7.58 \| good	0.499 \| good
2026-03-08T22:00:00.000Z	26 \| good	4.444 \| good	18.738 \| good	28.223 \| good	0.686 \| good	7.256 \| good	0.454 \| good
2026-03-08T23:00:00.000Z	29 \| good	5.415 \| good	22.968 \| good	30.522 \| good	0.706 \| good	7.358 \| good	0.478 \| good
2026-03-09T00:00:00.000Z	34 \| good	6.036 \| good	21.5 \| good	36.842 \| good	0.445 \| good	7.048 \| good	0.477 \| good
2026-03-09T01:00:00.000Z	35 \| good	3.908 \| good	16.868 \| good	38.189 \| good	0.46 \| good	5.68 \| good	0.477 \| good
2026-03-09T02:00:00.000Z	36 \| good	3.969 \| good	15.6 \| good	38.607 \| good	0.542 \| good	5.199 \| good	0.454 \| good
2026-03-09T03:00:00.000Z	56 \| moderate	11.973 \| good	54.097 \| good	39.89 \| good	1.323 \| good	22.849 \| good	0.244 \| good
2026-03-09T04:00:00.000Z	38 \| good	7.478 \| good	36.999 \| good	38.006 \| good	0.432 \| good	8.139 \| good	0.516 \| good
2026-03-09T05:00:00.000Z	33 \| good	6.453 \| good	30.629 \| good	29.45 \| good	0.444 \| good	9.717 \| good	0.514 \| good
2026-03-09T06:00:00.000Z	33 \| good	6.17 \| good	27.167 \| good	28.042 \| good	0.358 \| good	11.44 \| good	0.515 \| good
2026-03-09T07:00:00.000Z	52 \| moderate	9.845 \| good	21.118 \| good	27.935 \| good	0.356 \| good	6.503 \| good	0.48 \| good
2026-03-09T08:00:00.000Z	33 \| good	5.516 \| good	32.035 \| good	26.315 \| good	0.33 \| good	4.513 \| good	0.438 \| good
2026-03-09T09:00:00.000Z	27 \| good	4.508 \| good	14.726 \| good	22.767 \| good	0.301 \| good	4.41 \| good	0.42 \| good
2026-03-09T10:00:00.000Z	22 \| good	3.594 \| good	12.194 \| good	22.868 \| good	0.271 \| good	3.804 \| good	0.454 \| good
2026-03-09T11:00:00.000Z	14 \| good	2.042 \| good	7.873 \| good	14.596 \| good	0.33 \| good	3.967 \| good	0.454 \| good
2026-03-09T12:00:00.000Z	19 \| good	2.168 \| good	5.448 \| good	21.337 \| good	0.3 \| good	3.824 \| good	0.454 \| good
2026-03-09T13:00:00.000Z	22 \| good	3.137 \| good	12.006 \| good	23.676 \| good	0.468 \| good	5.138 \| good	0.54 \| good
2026-03-09T14:00:00.000Z	22 \| good	3.741 \| good	16.055 \| good	19.146 \| good	0.457 \| good	7.993 \| good	0.591 \| good
2026-03-09T15:00:00.000Z	16 \| good	3.013 \| good	15.957 \| good	10.741 \| good	0.359 \| good	10.162 \| good	0.675 \| good
2026-03-09T16:00:00.000Z	22 \| good	4.335 \| good	14.012 \| good	8.671 \| good	0.437 \| good	11.393 \| good	0.744 \| good
2026-03-09T17:00:00.000Z	51 \| moderate	5.987 \| good	55.679 \| fine	14.144 \| good	0.387 \| good	8.283 \| good	0.621 \| good
2026-03-09T18:00:00.000Z	38 \| good	6.77 \| good	29.346 \| good	12.606 \| good	0.361 \| good	11.966 \| good	0.574 \| good
2026-03-09T19:00:00.000Z	49 \| good	8.568 \| good	31.487 \| good	19.537 \| good	0.435 \| good	10.207 \| good	0.439 \| good
2026-03-09T20:00:00.000Z	52 \| moderate	10.142 \| good	34.344 \| good	21.897 \| good	0.93 \| good	7.037 \| good	0.356 \| good
2026-03-09T21:00:00.000Z	38 \| good	6.927 \| good	24.499 \| good	26.263 \| good	0.656 \| good	7.589 \| good	0.374 \| good
2026-03-09T22:00:00.000Z	49 \| good	8.879 \| good	22.764 \| good	26.874 \| good	0.429 \| good	6.55 \| good	0.396 \| good
2026-03-09T23:00:00.000Z	33 \| good	6.268 \| good	20.47 \| good	30.232 \| good	0.571 \| good	5.526 \| good	0.357 \| good
2026-03-09T23:00:00.000Z	49 \| good	8.879 \| good	22.764 \| good	26.874 \| good	0.429 \| good	6.55 \| good	0.396 \| good
2026-03-10T00:00:00.000Z	31 \| good	4.165 \| good	18.068 \| good	33.354 \| good	0.88 \| good	4.271 \| good	0.14 \| good
2026-03-10T01:00:00.000Z	35 \| good	2.326 \| good	9.997 \| good	37.649 \| good	0.79 \| good	5.519 \| good	0.145 \| good
2026-03-10T02:00:00.000Z	35 \| good	4.744 \| good	20.318 \| good	38.282 \| good	0.699 \| good	6.768 \| good	0.15 \| good
2026-03-10T03:00:00.000Z	36 \| good	4.341 \| good	19.075 \| good	39.225 \| good	0.609 \| good	8.017 \| good	0.155 \| good
2026-03-10T04:00:00.000Z	38 \| good	3.475 \| good	15.108 \| good	40.603 \| good	0.592 \| good	8.437 \| good	0.158 \| good
2026-03-10T05:00:00.000Z	37 \| good	2.289 \| good	9.241 \| good	39.853 \| good	0.576 \| good	8.858 \| good	0.161 \| good
2026-03-10T06:00:00.000Z	35 \| good	3.055 \| good	12.286 \| good	38.384 \| good	0.559 \| good	9.278 \| good	0.164 \| good
2026-03-10T07:00:00.000Z	39 \| good	3.177 \| good	14.039 \| good	41.987 \| good	0.523 \| good	8.5 \| good	0.16 \| good
2026-03-10T08:00:00.000Z	39 \| good	1.678 \| good	7.06 \| good	41.872 \| good	0.486 \| good	7.721 \| good	0.156 \| good
2026-03-10T09:00:00.000Z	38 \| good	1.486 \| good	6.135 \| good	40.527 \| good	0.449 \| good	6.943 \| good	0.152 \| good
2026-03-10T10:00:00.000Z	37 \| good	1.645 \| good	6.99 \| good	39.707 \| good	0.446 \| good	6.148 \| good	0.148 \| good
2026-03-10T11:00:00.000Z	37 \| good	1.638 \| good	6.99 \| good	39.915 \| good	0.444 \| good	5.352 \| good	0.144 \| good
2026-03-10T12:00:00.000Z	35 \| good	1.106 \| good	4.153 \| good	38.481 \| good	0.442 \| good	4.557 \| good	0.14 \| good
2026-03-10T13:00:00.000Z	36 \| good	0.928 \| good	3.921 \| good	38.512 \| good	0.458 \| good	4.902 \| good	0.143 \| good
2026-03-10T14:00:00.000Z	33 \| good	0.464 \| good	1.931 \| good	36.2 \| good	0.475 \| good	5.246 \| good	0.146 \| good
2026-03-10T15:00:00.000Z	32 \| good	1.323 \| good	5.152 \| good	34.827 \| good	0.492 \| good	5.59 \| good	0.149 \| good
2026-03-10T16:00:00.000Z	36 \| good	1.149 \| good	4.763 \| good	38.928 \| good	0.554 \| good	4.634 \| good	0.145 \| good
2026-03-10T17:00:00.000Z	37 \| good	0.934 \| good	3.849 \| good	39.643 \| good	0.617 \| good	3.677 \| good	0.141 \| good
2026-03-10T18:00:00.000Z	32 \| good	1.207 \| good	4.948 \| good	34.839 \| good	0.679 \| good	2.721 \| good	0.137 \| good
2026-03-10T19:00:00.000Z	32 \| good	2.138 \| good	8.923 \| good	34.852 \| good	0.675 \| good	2.54 \| good	0.136 \| good
2026-03-10T20:00:00.000Z	32 \| good	2.457 \| good	9.98 \| good	35.208 \| good	0.671 \| good	2.359 \| good	0.136 \| good
2026-03-10T21:00:00.000Z	31 \| good	3.732 \| good	15.992 \| good	34.375 \| good	0.667 \| good	2.178 \| good	0.136 \| good
2026-03-10T22:00:00.000Z	31 \| good	4.557 \| good	20.049 \| good	33.893 \| good	0.628 \| good	2.308 \| good	0.135 \| good
2026-03-10T23:00:00.000Z	31 \| good	4.313 \| good	18.927 \| good	34.341 \| good	0.588 \| good	2.437 \| good	0.134 \| good
2026-03-11T00:00:00.000Z	32 \| good	3.078 \| good	12.308 \| good	35.128 \| good	0.549 \| good	2.567 \| good	0.134 \| good
2026-03-11T01:00:00.000Z	35 \| good	2.187 \| good	9.051 \| good	37.664 \| good	0.548 \| good	4.722 \| good	0.144 \| good
2026-03-11T02:00:00.000Z	33 \| good	4.581 \| good	20.114 \| good	35.666 \| good	0.548 \| good	6.876 \| good	0.155 \| good
2026-03-11T03:00:00.000Z	31 \| good	4.846 \| good	21.135 \| good	34.354 \| good	0.548 \| good	9.03 \| good	0.166 \| good
2026-03-11T04:00:00.000Z	33 \| good	5.509 \| good	23.424 \| good	34.058 \| good	0.578 \| good	9.095 \| good	0.177 \| good
2026-03-11T05:00:00.000Z	30 \| good	5.066 \| good	22.074 \| good	31.766 \| good	0.608 \| good	9.16 \| good	0.189 \| good
2026-03-11T06:00:00.000Z	49 \| good	8.896 \| good	11.041 \| good	34.863 \| good	0.636 \| good	9.16 \| good	0.2 \| good
2026-03-11T07:00:00.000Z	29 \| good	4.968 \| good	21.329 \| good	31.233 \| good	0.622 \| good	8.947 \| good	0.202 \| good
2026-03-11T08:00:00.000Z	31 \| good	2.435 \| good	10.177 \| good	33.342 \| good	0.605 \| good	8.669 \| good	0.203 \| good
2026-03-11T09:00:00.000Z	30 \| good	2.317 \| good	9.359 \| good	31.921 \| good	0.588 \| good	8.392 \| good	0.204 \| good
2026-03-11T10:00:00.000Z	26 \| good	3.071 \| good	12.472 \| good	27.98 \| good	0.571 \| good	8.153 \| good	0.199 \| good
2026-03-11T11:00:00.000Z	27 \| good	3.176 \| good	14.126 \| good	29.385 \| good	0.554 \| good	7.915 \| good	0.194 \| good
2026-03-11T12:00:00.000Z	44 \| good	8.249 \| good	10.182 \| good	32.174 \| good	0.532 \| good	7.572 \| good	0.189 \| good
2026-03-11T13:00:00.000Z	44 \| good	8.173 \| good	10.145 \| good	30.727 \| good	0.613 \| good	7.698 \| good	0.195 \| good
2026-03-11T14:00:00.000Z	44 \| good	8.372 \| good	10.305 \| good	29.279 \| good	0.693 \| good	7.825 \| good	0.201 \| good
2026-03-11T15:00:00.000Z	52 \| moderate	9.631 \| good	11.403 \| good	27.832 \| good	0.774 \| good	7.951 \| good	0.207 \| good
2026-03-11T16:00:00.000Z	52 \| moderate	10.238 \| good	11.923 \| good	27.634 \| good	1.185 \| good	8.507 \| good	0.202 \| good
2026-03-11T17:00:00.000Z	38 \| good	7.262 \| good	31.925 \| good	26.693 \| good	1.585 \| good	9.019 \| good	0.196 \| good
2026-03-11T18:00:00.000Z	54 \| moderate	10.785 \| good	12.635 \| good	27.239 \| good	2.009 \| good	9.619 \| good	0.191 \| good
2026-03-11T19:00:00.000Z	54 \| moderate	11.192 \| good	13.026 \| good	29.462 \| good	1.98 \| good	9.495 \| good	0.191 \| good
2026-03-11T20:00:00.000Z	56 \| moderate	12.192 \| fine	14.195 \| good	31.686 \| good	1.951 \| good	9.371 \| good	0.191 \| good
2026-03-11T21:00:00.000Z	60 \| moderate	13.986 \| fine	16.307 \| good	33.91 \| good	1.922 \| good	9.247 \| good	0.192 \| good
2026-03-11T22:00:00.000Z	62 \| moderate	14.535 \| fine	17.171 \| good	35.357 \| good	1.699 \| good	9.155 \| good	0.189 \| good
2026-03-11T23:00:00.000Z	60 \| moderate	14.07 \| fine	16.83 \| good	36.804 \| good	1.475 \| good	9.064 \| good	0.186 \| good

Millbrae

Empower business decisions with accurate air quality data

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

0.40ppm

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.

Source: Ambee Data Sources

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Frequently asked questions

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

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

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

The worst air quality in Millbrae, California was recorded at 03:00:00 on 2026-03-09.

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

The best air quality in Millbrae, California was recorded at 11:00:00 on 2026-03-09.

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

The real-time air quality index in Millbrae, California is 49, currently categorized as Good.

Which pollutant is found most often in Millbrae, California?

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

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

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

What are the current PM_2.5 levels in Millbrae, California?

The measured PM_2.5 levels in Millbrae, California at present are 8.879 μg/m³.

What are the current PM₁₀ levels at Millbrae, California?

The current PM₁₀ levels in Millbrae, California are 22.764 μg/m³.

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

The current carbon monoxide (CO) level in Millbrae, California is 0.396 ppm.

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

The current sulfur dioxide (SO₂) levels in Millbrae, California are 0.429 ppb.

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

The current ozone (O₃) levels at Millbrae, California is 26.874 ppm.

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

The current nitrogen dioxide (NO₂) levels at Millbrae, California is 6.55 ppb.

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