What are the current PM10 levels at Millbrae, California?

The current PM10 levels in Millbrae, California are 14.233 μg/m3.

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

The current sulfur dioxide (SO2) levels in Millbrae, California are 0.508 ppb.

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

The current ozone (O3) levels at Millbrae, California is 12.442 ppm.

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

The current nitrogen dioxide (NO2) levels at Millbrae, California is 6.124 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 5.821 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)

5.82 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

14.23 μg/m³

155

255

425

605+

Ozone (O₃)

12.44 ppb

201

201+

Sulfur Dioxide (SO₂)

0.51 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

6.12 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.29 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Millbrae, California

Get Live Pollen Counts

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
2025-12-06T01:00:00.000Z	60 \| moderate	14.197 \| fine	59.524 \| fine	15.491 \| good	0.452 \| good	11.176 \| good	0.275 \| good
2025-12-06T02:00:00.000Z	71 \| moderate	20.283 \| fine	85.025 \| fine	14.752 \| good	0.367 \| good	13.59 \| good	0.328 \| good
2025-12-06T03:00:00.000Z	64 \| moderate	15.799 \| fine	54.165 \| good	14.504 \| good	0.332 \| good	16.495 \| good	0.432 \| good
2025-12-06T04:00:00.000Z	58 \| moderate	12.546 \| fine	49.805 \| good	13.761 \| good	0.349 \| good	15.697 \| good	0.471 \| good
2025-12-06T05:00:00.000Z	76 \| moderate	16.138 \| fine	104.708 \| fine	12.486 \| good	0.436 \| good	14.386 \| good	0.464 \| good
2025-12-06T06:00:00.000Z	58 \| moderate	13.397 \| fine	51.502 \| good	13.242 \| good	0.402 \| good	11.211 \| good	0.538 \| good
2025-12-06T07:00:00.000Z	56 \| moderate	11.813 \| good	40.622 \| good	12.333 \| good	0.42 \| good	13.276 \| good	0.538 \| good
2025-12-06T08:00:00.000Z	56 \| moderate	12.003 \| good	64.07 \| fine	11.895 \| good	0.39 \| good	12.118 \| good	0.432 \| good
2025-12-06T09:00:00.000Z	56 \| moderate	11.016 \| good	65.713 \| fine	15.071 \| good	0.41 \| good	11.477 \| good	0.356 \| good
2025-12-06T10:00:00.000Z	71 \| moderate	20.483 \| fine	87.237 \| fine	12.104 \| good	0.94 \| good	12.17 \| good	0.429 \| good
2025-12-06T11:00:00.000Z	73 \| moderate	20.663 \| fine	78.798 \| fine	8.162 \| good	0.866 \| good	9.584 \| good	0.382 \| good
2025-12-06T12:00:00.000Z	58 \| moderate	12.887 \| fine	69.643 \| fine	5.029 \| good	0.315 \| good	8.226 \| good	0.375 \| good
2025-12-06T13:00:00.000Z	69 \| moderate	19.297 \| fine	74.642 \| fine	7.054 \| good	0.364 \| good	12.001 \| good	0.304 \| good
2025-12-06T14:00:00.000Z	69 \| moderate	18.752 \| fine	62.468 \| fine	5.379 \| good	0.521 \| good	6.905 \| good	0.209 \| good
2025-12-06T15:00:00.000Z	60 \| moderate	13.816 \| fine	54.619 \| good	6.862 \| good	0.409 \| good	8.179 \| good	0.273 \| good
2025-12-06T16:00:00.000Z	60 \| moderate	14.353 \| fine	63.779 \| fine	5.253 \| good	0.377 \| good	6.727 \| good	0.309 \| good
2025-12-06T17:00:00.000Z	58 \| moderate	13 \| fine	54.297 \| good	7.3 \| good	0.426 \| good	7.117 \| good	0.27 \| good
2025-12-06T18:00:00.000Z	64 \| moderate	15.786 \| fine	60.657 \| fine	8.525 \| good	0.495 \| good	7.287 \| good	0.31 \| good
2025-12-06T19:00:00.000Z	66 \| moderate	17.224 \| fine	44.101 \| good	10.862 \| good	0.572 \| good	6.138 \| good	0.372 \| good
2025-12-06T20:00:00.000Z	66 \| moderate	16.95 \| fine	85.861 \| fine	11.254 \| good	0.554 \| good	5.405 \| good	0.352 \| good
2025-12-06T21:00:00.000Z	77 \| moderate	23.04 \| fine	64.457 \| fine	12.729 \| good	0.567 \| good	7.19 \| good	0.373 \| good
2025-12-06T22:00:00.000Z	66 \| moderate	17.067 \| fine	70.51 \| fine	13.326 \| good	0.566 \| good	7.31 \| good	0.352 \| good
2025-12-06T23:00:00.000Z	64 \| moderate	15.579 \| fine	47.663 \| good	12.349 \| good	0.474 \| good	6.781 \| good	0.31 \| good
2025-12-07T00:00:00.000Z	60 \| moderate	13.616 \| fine	53.801 \| good	14.41 \| good	0.514 \| good	8.017 \| good	0.31 \| good
2025-12-07T01:00:00.000Z	54 \| moderate	11.207 \| good	45.614 \| good	15.705 \| good	0.443 \| good	9.514 \| good	0.337 \| good
2025-12-07T02:00:00.000Z	52 \| moderate	9.826 \| good	45.77 \| good	12.597 \| good	0.382 \| good	9.976 \| good	0.374 \| good
2025-12-07T03:00:00.000Z	44 \| good	8.135 \| good	19.43 \| good	11.148 \| good	0.319 \| good	12.315 \| good	0.391 \| good
2025-12-07T04:00:00.000Z	52 \| moderate	9.694 \| good	24.862 \| good	11.572 \| good	0.313 \| good	12.155 \| good	0.49 \| good
2025-12-07T05:00:00.000Z	38 \| good	7.238 \| good	26.007 \| good	12.643 \| good	0.269 \| good	10.217 \| good	0.528 \| good
2025-12-07T06:00:00.000Z	60 \| moderate	13.533 \| fine	24.772 \| good	12.776 \| good	0.262 \| good	9.001 \| good	0.526 \| good
2025-12-07T07:00:00.000Z	60 \| moderate	13.774 \| fine	55.594 \| fine	8.614 \| good	0.266 \| good	9.097 \| good	0.512 \| good
2025-12-07T08:00:00.000Z	66 \| moderate	16.736 \| fine	62.945 \| fine	5.909 \| good	0.272 \| good	9.874 \| good	0.544 \| good
2025-12-07T09:00:00.000Z	71 \| moderate	20.211 \| fine	93.434 \| fine	8.245 \| good	0.327 \| good	7.768 \| good	0.466 \| good
2025-12-07T10:00:00.000Z	74 \| moderate	21.413 \| fine	100.911 \| fine	8.266 \| good	0.476 \| good	4.215 \| good	0.265 \| good
2025-12-07T11:00:00.000Z	58 \| moderate	12.539 \| fine	39.159 \| good	9.555 \| good	0.505 \| good	3.406 \| good	0.256 \| good
2025-12-07T12:00:00.000Z	64 \| moderate	15.957 \| fine	60.781 \| fine	5.139 \| good	0.336 \| good	7.388 \| good	0.215 \| good
2025-12-07T13:00:00.000Z	66 \| moderate	17.233 \| fine	66.707 \| fine	5.584 \| good	0.36 \| good	9.857 \| good	0.309 \| good
2025-12-07T14:00:00.000Z	71 \| moderate	19.86 \| fine	93.454 \| fine	9.064 \| good	0.444 \| good	11.928 \| good	0.471 \| good
2025-12-07T15:00:00.000Z	69 \| moderate	18.769 \| fine	71.145 \| fine	7.398 \| good	0.403 \| good	9.968 \| good	0.352 \| good
2025-12-07T16:00:00.000Z	62 \| moderate	15.499 \| fine	68.482 \| fine	6.115 \| good	0.345 \| good	13.299 \| good	0.332 \| good
2025-12-07T17:00:00.000Z	64 \| moderate	16.371 \| fine	35.535 \| good	5.239 \| good	0.365 \| good	11.073 \| good	0.373 \| good
2025-12-07T18:00:00.000Z	64 \| moderate	15.549 \| fine	39.767 \| good	8.525 \| good	0.399 \| good	9.211 \| good	0.384 \| good
2025-12-07T19:00:00.000Z	64 \| moderate	15.625 \| fine	60.609 \| fine	8.88 \| good	0.481 \| good	7.29 \| good	0.378 \| good
2025-12-07T20:00:00.000Z	62 \| moderate	14.724 \| fine	60.574 \| fine	10.534 \| good	0.501 \| good	6.448 \| good	0.342 \| good
2025-12-07T21:00:00.000Z	62 \| moderate	15.181 \| fine	63.487 \| fine	11.165 \| good	0.578 \| good	6.844 \| good	0.31 \| good
2025-12-07T22:00:00.000Z	58 \| moderate	13.087 \| fine	58.13 \| fine	12.425 \| good	0.473 \| good	7.764 \| good	0.31 \| good
2025-12-07T23:00:00.000Z	49 \| good	9.342 \| good	37.31 \| good	11.887 \| good	0.436 \| good	7.365 \| good	0.294 \| good
2025-12-08T00:00:00.000Z	33 \| good	5.821 \| good	14.233 \| good	12.442 \| good	0.508 \| good	6.124 \| good	0.294 \| good
2025-12-08T00:00:00.000Z	33 \| good	5.821 \| good	14.233 \| good	12.442 \| good	0.508 \| good	6.124 \| good	0.294 \| good
2025-12-08T01:00:00.000Z	27 \| good	5.417 \| good	23.066 \| good	13.394 \| good	1.742 \| good	14.031 \| good	0.191 \| good
2025-12-08T02:00:00.000Z	27 \| good	4.673 \| good	20.708 \| good	11.806 \| good	1.619 \| good	14.669 \| good	0.211 \| good
2025-12-08T03:00:00.000Z	27 \| good	5.297 \| good	23.119 \| good	10.365 \| good	1.496 \| good	15.308 \| good	0.23 \| good
2025-12-08T04:00:00.000Z	22 \| good	4.394 \| good	19.026 \| good	10.102 \| good	1.591 \| good	15.111 \| good	0.234 \| good
2025-12-08T05:00:00.000Z	22 \| good	3.681 \| good	16.038 \| good	10.027 \| good	1.686 \| good	14.914 \| good	0.238 \| good
2025-12-08T06:00:00.000Z	16 \| good	2.923 \| good	12.311 \| good	7.969 \| good	1.781 \| good	14.717 \| good	0.242 \| good
2025-12-08T07:00:00.000Z	22 \| good	3.702 \| good	16.118 \| good	5.195 \| good	1.71 \| good	14.709 \| good	0.242 \| good
2025-12-08T08:00:00.000Z	38 \| good	6.624 \| good	29.194 \| good	3.188 \| good	1.638 \| good	14.7 \| good	0.243 \| good
2025-12-08T09:00:00.000Z	52 \| moderate	9.951 \| good	44.333 \| good	1.665 \| good	1.566 \| good	14.691 \| good	0.243 \| good
2025-12-08T10:00:00.000Z	54 \| moderate	11.375 \| good	50.383 \| good	1.291 \| good	1.535 \| good	14.204 \| good	0.241 \| good
2025-12-08T11:00:00.000Z	60 \| moderate	13.677 \| fine	61.13 \| fine	1.115 \| good	1.505 \| good	13.717 \| good	0.239 \| good
2025-12-08T12:00:00.000Z	64 \| moderate	15.807 \| fine	70.902 \| fine	1.164 \| good	1.474 \| good	13.23 \| good	0.238 \| good
2025-12-08T13:00:00.000Z	66 \| moderate	17.276 \| fine	77.127 \| fine	1.308 \| good	1.652 \| good	12.982 \| good	0.245 \| good
2025-12-08T14:00:00.000Z	69 \| moderate	19.141 \| fine	84.853 \| fine	0.942 \| good	1.83 \| good	12.734 \| good	0.253 \| good
2025-12-08T15:00:00.000Z	67 \| moderate	18.251 \| fine	80.933 \| fine	1.653 \| good	2.008 \| good	12.487 \| good	0.26 \| good
2025-12-08T16:00:00.000Z	69 \| moderate	18.74 \| fine	83.067 \| fine	4.177 \| good	2.67 \| good	13.057 \| good	0.254 \| good
2025-12-08T17:00:00.000Z	66 \| moderate	17.185 \| fine	76.749 \| fine	6.194 \| good	3.333 \| good	13.627 \| good	0.248 \| good
2025-12-08T18:00:00.000Z	67 \| moderate	17.955 \| fine	78.903 \| fine	6.881 \| good	3.995 \| good	14.197 \| good	0.242 \| good
2025-12-08T19:00:00.000Z	67 \| moderate	18.127 \| fine	80.382 \| fine	8.583 \| good	3.734 \| good	12.736 \| good	0.218 \| good
2025-12-08T20:00:00.000Z	69 \| moderate	18.801 \| fine	82.371 \| fine	9.67 \| good	3.474 \| good	11.275 \| good	0.194 \| good
2025-12-08T21:00:00.000Z	71 \| moderate	19.784 \| fine	86.334 \| fine	9.336 \| good	3.213 \| good	9.814 \| good	0.171 \| good
2025-12-08T22:00:00.000Z	69 \| moderate	18.797 \| fine	82.519 \| fine	9.759 \| good	2.831 \| good	10.016 \| good	0.165 \| good
2025-12-08T23:00:00.000Z	64 \| moderate	16.287 \| fine	72.515 \| fine	10.02 \| good	2.448 \| good	10.218 \| good	0.16 \| good
2025-12-09T00:00:00.000Z	52 \| moderate	10.254 \| good	45.006 \| good	13.446 \| good	2.066 \| good	10.42 \| good	0.155 \| good
2025-12-09T01:00:00.000Z	49 \| good	8.579 \| good	37.288 \| good	12.817 \| good	1.844 \| good	11.763 \| good	0.178 \| good
2025-12-09T02:00:00.000Z	38 \| good	6.592 \| good	29.045 \| good	11.34 \| good	1.622 \| good	13.106 \| good	0.202 \| good
2025-12-09T03:00:00.000Z	38 \| good	6.811 \| good	30.154 \| good	9.996 \| good	1.401 \| good	14.449 \| good	0.225 \| good
2025-12-09T04:00:00.000Z	33 \| good	5.748 \| good	24.562 \| good	9.47 \| good	1.441 \| good	13.182 \| good	0.228 \| good
2025-12-09T05:00:00.000Z	27 \| good	5.473 \| good	23.57 \| good	10.19 \| good	1.48 \| good	11.915 \| good	0.231 \| good
2025-12-09T06:00:00.000Z	22 \| good	3.9 \| good	17.26 \| good	11.165 \| good	1.52 \| good	10.648 \| good	0.234 \| good
2025-12-09T07:00:00.000Z	22 \| good	3.647 \| good	16.272 \| good	10.81 \| good	1.448 \| good	10.162 \| good	0.234 \| good
2025-12-09T08:00:00.000Z	16 \| good	3.431 \| good	15.242 \| good	9.63 \| good	1.375 \| good	9.675 \| good	0.234 \| good
2025-12-09T09:00:00.000Z	33 \| good	6.447 \| good	28.723 \| good	7.277 \| good	1.303 \| good	9.188 \| good	0.235 \| good
2025-12-09T10:00:00.000Z	44 \| good	8.208 \| good	35.815 \| good	4.535 \| good	1.204 \| good	8.634 \| good	0.227 \| good
2025-12-09T11:00:00.000Z	49 \| good	8.889 \| good	38.649 \| good	2.247 \| good	1.106 \| good	8.079 \| good	0.219 \| good
2025-12-09T12:00:00.000Z	54 \| moderate	11.021 \| good	48.713 \| good	0.656 \| good	1.008 \| good	7.525 \| good	0.211 \| good
2025-12-09T13:00:00.000Z	58 \| moderate	12.603 \| fine	57.15 \| fine	0.382 \| good	1.091 \| good	7.853 \| good	0.212 \| good
2025-12-09T14:00:00.000Z	62 \| moderate	14.685 \| fine	65.512 \| fine	0.161 \| good	1.175 \| good	8.181 \| good	0.212 \| good
2025-12-09T15:00:00.000Z	60 \| moderate	13.935 \| fine	62.922 \| fine	0.432 \| good	1.259 \| good	8.509 \| good	0.213 \| good
2025-12-09T16:00:00.000Z	58 \| moderate	13.127 \| fine	58.532 \| fine	1.701 \| good	1.269 \| good	8.143 \| good	0.213 \| good
2025-12-09T17:00:00.000Z	56 \| moderate	11.583 \| good	51.086 \| good	3.362 \| good	1.279 \| good	7.777 \| good	0.213 \| good
2025-12-09T18:00:00.000Z	58 \| moderate	13.448 \| fine	60.109 \| fine	5.246 \| good	1.289 \| good	7.411 \| good	0.213 \| good
2025-12-09T19:00:00.000Z	58 \| moderate	12.983 \| fine	58.09 \| fine	6.897 \| good	1.31 \| good	6.645 \| good	0.185 \| good
2025-12-09T20:00:00.000Z	52 \| moderate	10.258 \| good	45.553 \| good	7.766 \| good	1.33 \| good	5.879 \| good	0.158 \| good
2025-12-09T21:00:00.000Z	44 \| good	7.798 \| good	33.979 \| good	8.553 \| good	1.351 \| good	5.114 \| good	0.13 \| good
2025-12-09T22:00:00.000Z	44 \| good	7.927 \| good	34.912 \| good	10.166 \| good	1.277 \| good	6.43 \| good	0.132 \| good
2025-12-09T23:00:00.000Z	44 \| good	7.71 \| good	33.944 \| good	10.657 \| good	1.203 \| good	7.746 \| good	0.133 \| good
2025-12-10T00:00:00.000Z	54 \| moderate	10.905 \| good	13.612 \| good	26.82 \| good	1.121 \| good	9.096 \| good	0.134 \| good

Millbrae

Empower business decisions with accurate air quality data

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

0.30ppm

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 10:00:00 on 2025-12-07.

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

The best air quality in Millbrae, California was recorded at 05:00:00 on 2025-12-07.

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

The real-time air quality index in Millbrae, California is 33, 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 5.821 μg/m³.

What are the current PM₁₀ levels at Millbrae, California?

The current PM₁₀ levels in Millbrae, California are 14.233 μg/m³.

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

The current carbon monoxide (CO) level in Millbrae, California is 0.294 ppm.

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

The current sulfur dioxide (SO₂) levels in Millbrae, California are 0.508 ppb.

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

The current ozone (O₃) levels at Millbrae, California is 12.442 ppm.

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

The current nitrogen dioxide (NO₂) levels at Millbrae, California is 6.124 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-12-06T01:00:00.000Z	60 \| moderate	14.197 \| fine	59.524 \| fine	15.491 \| good	0.452 \| good	11.176 \| good	0.275 \| good
2025-12-06T02:00:00.000Z	71 \| moderate	20.283 \| fine	85.025 \| fine	14.752 \| good	0.367 \| good	13.59 \| good	0.328 \| good
2025-12-06T03:00:00.000Z	64 \| moderate	15.799 \| fine	54.165 \| good	14.504 \| good	0.332 \| good	16.495 \| good	0.432 \| good
2025-12-06T04:00:00.000Z	58 \| moderate	12.546 \| fine	49.805 \| good	13.761 \| good	0.349 \| good	15.697 \| good	0.471 \| good
2025-12-06T05:00:00.000Z	76 \| moderate	16.138 \| fine	104.708 \| fine	12.486 \| good	0.436 \| good	14.386 \| good	0.464 \| good
2025-12-06T06:00:00.000Z	58 \| moderate	13.397 \| fine	51.502 \| good	13.242 \| good	0.402 \| good	11.211 \| good	0.538 \| good
2025-12-06T07:00:00.000Z	56 \| moderate	11.813 \| good	40.622 \| good	12.333 \| good	0.42 \| good	13.276 \| good	0.538 \| good
2025-12-06T08:00:00.000Z	56 \| moderate	12.003 \| good	64.07 \| fine	11.895 \| good	0.39 \| good	12.118 \| good	0.432 \| good
2025-12-06T09:00:00.000Z	56 \| moderate	11.016 \| good	65.713 \| fine	15.071 \| good	0.41 \| good	11.477 \| good	0.356 \| good
2025-12-06T10:00:00.000Z	71 \| moderate	20.483 \| fine	87.237 \| fine	12.104 \| good	0.94 \| good	12.17 \| good	0.429 \| good
2025-12-06T11:00:00.000Z	73 \| moderate	20.663 \| fine	78.798 \| fine	8.162 \| good	0.866 \| good	9.584 \| good	0.382 \| good
2025-12-06T12:00:00.000Z	58 \| moderate	12.887 \| fine	69.643 \| fine	5.029 \| good	0.315 \| good	8.226 \| good	0.375 \| good
2025-12-06T13:00:00.000Z	69 \| moderate	19.297 \| fine	74.642 \| fine	7.054 \| good	0.364 \| good	12.001 \| good	0.304 \| good
2025-12-06T14:00:00.000Z	69 \| moderate	18.752 \| fine	62.468 \| fine	5.379 \| good	0.521 \| good	6.905 \| good	0.209 \| good
2025-12-06T15:00:00.000Z	60 \| moderate	13.816 \| fine	54.619 \| good	6.862 \| good	0.409 \| good	8.179 \| good	0.273 \| good
2025-12-06T16:00:00.000Z	60 \| moderate	14.353 \| fine	63.779 \| fine	5.253 \| good	0.377 \| good	6.727 \| good	0.309 \| good
2025-12-06T17:00:00.000Z	58 \| moderate	13 \| fine	54.297 \| good	7.3 \| good	0.426 \| good	7.117 \| good	0.27 \| good
2025-12-06T18:00:00.000Z	64 \| moderate	15.786 \| fine	60.657 \| fine	8.525 \| good	0.495 \| good	7.287 \| good	0.31 \| good
2025-12-06T19:00:00.000Z	66 \| moderate	17.224 \| fine	44.101 \| good	10.862 \| good	0.572 \| good	6.138 \| good	0.372 \| good
2025-12-06T20:00:00.000Z	66 \| moderate	16.95 \| fine	85.861 \| fine	11.254 \| good	0.554 \| good	5.405 \| good	0.352 \| good
2025-12-06T21:00:00.000Z	77 \| moderate	23.04 \| fine	64.457 \| fine	12.729 \| good	0.567 \| good	7.19 \| good	0.373 \| good
2025-12-06T22:00:00.000Z	66 \| moderate	17.067 \| fine	70.51 \| fine	13.326 \| good	0.566 \| good	7.31 \| good	0.352 \| good
2025-12-06T23:00:00.000Z	64 \| moderate	15.579 \| fine	47.663 \| good	12.349 \| good	0.474 \| good	6.781 \| good	0.31 \| good
2025-12-07T00:00:00.000Z	60 \| moderate	13.616 \| fine	53.801 \| good	14.41 \| good	0.514 \| good	8.017 \| good	0.31 \| good
2025-12-07T01:00:00.000Z	54 \| moderate	11.207 \| good	45.614 \| good	15.705 \| good	0.443 \| good	9.514 \| good	0.337 \| good
2025-12-07T02:00:00.000Z	52 \| moderate	9.826 \| good	45.77 \| good	12.597 \| good	0.382 \| good	9.976 \| good	0.374 \| good
2025-12-07T03:00:00.000Z	44 \| good	8.135 \| good	19.43 \| good	11.148 \| good	0.319 \| good	12.315 \| good	0.391 \| good
2025-12-07T04:00:00.000Z	52 \| moderate	9.694 \| good	24.862 \| good	11.572 \| good	0.313 \| good	12.155 \| good	0.49 \| good
2025-12-07T05:00:00.000Z	38 \| good	7.238 \| good	26.007 \| good	12.643 \| good	0.269 \| good	10.217 \| good	0.528 \| good
2025-12-07T06:00:00.000Z	60 \| moderate	13.533 \| fine	24.772 \| good	12.776 \| good	0.262 \| good	9.001 \| good	0.526 \| good
2025-12-07T07:00:00.000Z	60 \| moderate	13.774 \| fine	55.594 \| fine	8.614 \| good	0.266 \| good	9.097 \| good	0.512 \| good
2025-12-07T08:00:00.000Z	66 \| moderate	16.736 \| fine	62.945 \| fine	5.909 \| good	0.272 \| good	9.874 \| good	0.544 \| good
2025-12-07T09:00:00.000Z	71 \| moderate	20.211 \| fine	93.434 \| fine	8.245 \| good	0.327 \| good	7.768 \| good	0.466 \| good
2025-12-07T10:00:00.000Z	74 \| moderate	21.413 \| fine	100.911 \| fine	8.266 \| good	0.476 \| good	4.215 \| good	0.265 \| good
2025-12-07T11:00:00.000Z	58 \| moderate	12.539 \| fine	39.159 \| good	9.555 \| good	0.505 \| good	3.406 \| good	0.256 \| good
2025-12-07T12:00:00.000Z	64 \| moderate	15.957 \| fine	60.781 \| fine	5.139 \| good	0.336 \| good	7.388 \| good	0.215 \| good
2025-12-07T13:00:00.000Z	66 \| moderate	17.233 \| fine	66.707 \| fine	5.584 \| good	0.36 \| good	9.857 \| good	0.309 \| good
2025-12-07T14:00:00.000Z	71 \| moderate	19.86 \| fine	93.454 \| fine	9.064 \| good	0.444 \| good	11.928 \| good	0.471 \| good
2025-12-07T15:00:00.000Z	69 \| moderate	18.769 \| fine	71.145 \| fine	7.398 \| good	0.403 \| good	9.968 \| good	0.352 \| good
2025-12-07T16:00:00.000Z	62 \| moderate	15.499 \| fine	68.482 \| fine	6.115 \| good	0.345 \| good	13.299 \| good	0.332 \| good
2025-12-07T17:00:00.000Z	64 \| moderate	16.371 \| fine	35.535 \| good	5.239 \| good	0.365 \| good	11.073 \| good	0.373 \| good
2025-12-07T18:00:00.000Z	64 \| moderate	15.549 \| fine	39.767 \| good	8.525 \| good	0.399 \| good	9.211 \| good	0.384 \| good
2025-12-07T19:00:00.000Z	64 \| moderate	15.625 \| fine	60.609 \| fine	8.88 \| good	0.481 \| good	7.29 \| good	0.378 \| good
2025-12-07T20:00:00.000Z	62 \| moderate	14.724 \| fine	60.574 \| fine	10.534 \| good	0.501 \| good	6.448 \| good	0.342 \| good
2025-12-07T21:00:00.000Z	62 \| moderate	15.181 \| fine	63.487 \| fine	11.165 \| good	0.578 \| good	6.844 \| good	0.31 \| good
2025-12-07T22:00:00.000Z	58 \| moderate	13.087 \| fine	58.13 \| fine	12.425 \| good	0.473 \| good	7.764 \| good	0.31 \| good
2025-12-07T23:00:00.000Z	49 \| good	9.342 \| good	37.31 \| good	11.887 \| good	0.436 \| good	7.365 \| good	0.294 \| good
2025-12-08T00:00:00.000Z	33 \| good	5.821 \| good	14.233 \| good	12.442 \| good	0.508 \| good	6.124 \| good	0.294 \| good
2025-12-08T00:00:00.000Z	33 \| good	5.821 \| good	14.233 \| good	12.442 \| good	0.508 \| good	6.124 \| good	0.294 \| good
2025-12-08T01:00:00.000Z	27 \| good	5.417 \| good	23.066 \| good	13.394 \| good	1.742 \| good	14.031 \| good	0.191 \| good
2025-12-08T02:00:00.000Z	27 \| good	4.673 \| good	20.708 \| good	11.806 \| good	1.619 \| good	14.669 \| good	0.211 \| good
2025-12-08T03:00:00.000Z	27 \| good	5.297 \| good	23.119 \| good	10.365 \| good	1.496 \| good	15.308 \| good	0.23 \| good
2025-12-08T04:00:00.000Z	22 \| good	4.394 \| good	19.026 \| good	10.102 \| good	1.591 \| good	15.111 \| good	0.234 \| good
2025-12-08T05:00:00.000Z	22 \| good	3.681 \| good	16.038 \| good	10.027 \| good	1.686 \| good	14.914 \| good	0.238 \| good
2025-12-08T06:00:00.000Z	16 \| good	2.923 \| good	12.311 \| good	7.969 \| good	1.781 \| good	14.717 \| good	0.242 \| good
2025-12-08T07:00:00.000Z	22 \| good	3.702 \| good	16.118 \| good	5.195 \| good	1.71 \| good	14.709 \| good	0.242 \| good
2025-12-08T08:00:00.000Z	38 \| good	6.624 \| good	29.194 \| good	3.188 \| good	1.638 \| good	14.7 \| good	0.243 \| good
2025-12-08T09:00:00.000Z	52 \| moderate	9.951 \| good	44.333 \| good	1.665 \| good	1.566 \| good	14.691 \| good	0.243 \| good
2025-12-08T10:00:00.000Z	54 \| moderate	11.375 \| good	50.383 \| good	1.291 \| good	1.535 \| good	14.204 \| good	0.241 \| good
2025-12-08T11:00:00.000Z	60 \| moderate	13.677 \| fine	61.13 \| fine	1.115 \| good	1.505 \| good	13.717 \| good	0.239 \| good
2025-12-08T12:00:00.000Z	64 \| moderate	15.807 \| fine	70.902 \| fine	1.164 \| good	1.474 \| good	13.23 \| good	0.238 \| good
2025-12-08T13:00:00.000Z	66 \| moderate	17.276 \| fine	77.127 \| fine	1.308 \| good	1.652 \| good	12.982 \| good	0.245 \| good
2025-12-08T14:00:00.000Z	69 \| moderate	19.141 \| fine	84.853 \| fine	0.942 \| good	1.83 \| good	12.734 \| good	0.253 \| good
2025-12-08T15:00:00.000Z	67 \| moderate	18.251 \| fine	80.933 \| fine	1.653 \| good	2.008 \| good	12.487 \| good	0.26 \| good
2025-12-08T16:00:00.000Z	69 \| moderate	18.74 \| fine	83.067 \| fine	4.177 \| good	2.67 \| good	13.057 \| good	0.254 \| good
2025-12-08T17:00:00.000Z	66 \| moderate	17.185 \| fine	76.749 \| fine	6.194 \| good	3.333 \| good	13.627 \| good	0.248 \| good
2025-12-08T18:00:00.000Z	67 \| moderate	17.955 \| fine	78.903 \| fine	6.881 \| good	3.995 \| good	14.197 \| good	0.242 \| good
2025-12-08T19:00:00.000Z	67 \| moderate	18.127 \| fine	80.382 \| fine	8.583 \| good	3.734 \| good	12.736 \| good	0.218 \| good
2025-12-08T20:00:00.000Z	69 \| moderate	18.801 \| fine	82.371 \| fine	9.67 \| good	3.474 \| good	11.275 \| good	0.194 \| good
2025-12-08T21:00:00.000Z	71 \| moderate	19.784 \| fine	86.334 \| fine	9.336 \| good	3.213 \| good	9.814 \| good	0.171 \| good
2025-12-08T22:00:00.000Z	69 \| moderate	18.797 \| fine	82.519 \| fine	9.759 \| good	2.831 \| good	10.016 \| good	0.165 \| good
2025-12-08T23:00:00.000Z	64 \| moderate	16.287 \| fine	72.515 \| fine	10.02 \| good	2.448 \| good	10.218 \| good	0.16 \| good
2025-12-09T00:00:00.000Z	52 \| moderate	10.254 \| good	45.006 \| good	13.446 \| good	2.066 \| good	10.42 \| good	0.155 \| good
2025-12-09T01:00:00.000Z	49 \| good	8.579 \| good	37.288 \| good	12.817 \| good	1.844 \| good	11.763 \| good	0.178 \| good
2025-12-09T02:00:00.000Z	38 \| good	6.592 \| good	29.045 \| good	11.34 \| good	1.622 \| good	13.106 \| good	0.202 \| good
2025-12-09T03:00:00.000Z	38 \| good	6.811 \| good	30.154 \| good	9.996 \| good	1.401 \| good	14.449 \| good	0.225 \| good
2025-12-09T04:00:00.000Z	33 \| good	5.748 \| good	24.562 \| good	9.47 \| good	1.441 \| good	13.182 \| good	0.228 \| good
2025-12-09T05:00:00.000Z	27 \| good	5.473 \| good	23.57 \| good	10.19 \| good	1.48 \| good	11.915 \| good	0.231 \| good
2025-12-09T06:00:00.000Z	22 \| good	3.9 \| good	17.26 \| good	11.165 \| good	1.52 \| good	10.648 \| good	0.234 \| good
2025-12-09T07:00:00.000Z	22 \| good	3.647 \| good	16.272 \| good	10.81 \| good	1.448 \| good	10.162 \| good	0.234 \| good
2025-12-09T08:00:00.000Z	16 \| good	3.431 \| good	15.242 \| good	9.63 \| good	1.375 \| good	9.675 \| good	0.234 \| good
2025-12-09T09:00:00.000Z	33 \| good	6.447 \| good	28.723 \| good	7.277 \| good	1.303 \| good	9.188 \| good	0.235 \| good
2025-12-09T10:00:00.000Z	44 \| good	8.208 \| good	35.815 \| good	4.535 \| good	1.204 \| good	8.634 \| good	0.227 \| good
2025-12-09T11:00:00.000Z	49 \| good	8.889 \| good	38.649 \| good	2.247 \| good	1.106 \| good	8.079 \| good	0.219 \| good
2025-12-09T12:00:00.000Z	54 \| moderate	11.021 \| good	48.713 \| good	0.656 \| good	1.008 \| good	7.525 \| good	0.211 \| good
2025-12-09T13:00:00.000Z	58 \| moderate	12.603 \| fine	57.15 \| fine	0.382 \| good	1.091 \| good	7.853 \| good	0.212 \| good
2025-12-09T14:00:00.000Z	62 \| moderate	14.685 \| fine	65.512 \| fine	0.161 \| good	1.175 \| good	8.181 \| good	0.212 \| good
2025-12-09T15:00:00.000Z	60 \| moderate	13.935 \| fine	62.922 \| fine	0.432 \| good	1.259 \| good	8.509 \| good	0.213 \| good
2025-12-09T16:00:00.000Z	58 \| moderate	13.127 \| fine	58.532 \| fine	1.701 \| good	1.269 \| good	8.143 \| good	0.213 \| good
2025-12-09T17:00:00.000Z	56 \| moderate	11.583 \| good	51.086 \| good	3.362 \| good	1.279 \| good	7.777 \| good	0.213 \| good
2025-12-09T18:00:00.000Z	58 \| moderate	13.448 \| fine	60.109 \| fine	5.246 \| good	1.289 \| good	7.411 \| good	0.213 \| good
2025-12-09T19:00:00.000Z	58 \| moderate	12.983 \| fine	58.09 \| fine	6.897 \| good	1.31 \| good	6.645 \| good	0.185 \| good
2025-12-09T20:00:00.000Z	52 \| moderate	10.258 \| good	45.553 \| good	7.766 \| good	1.33 \| good	5.879 \| good	0.158 \| good
2025-12-09T21:00:00.000Z	44 \| good	7.798 \| good	33.979 \| good	8.553 \| good	1.351 \| good	5.114 \| good	0.13 \| good
2025-12-09T22:00:00.000Z	44 \| good	7.927 \| good	34.912 \| good	10.166 \| good	1.277 \| good	6.43 \| good	0.132 \| good
2025-12-09T23:00:00.000Z	44 \| good	7.71 \| good	33.944 \| good	10.657 \| good	1.203 \| good	7.746 \| good	0.133 \| good
2025-12-10T00:00:00.000Z	54 \| moderate	10.905 \| good	13.612 \| good	26.82 \| good	1.121 \| good	9.096 \| good	0.134 \| good

Real-time air quality index in Millbrae, California today

Common air pollutants in Millbrae, California

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Millbrae, California air quality forecast and history

Empower business decisions with accurate air quality data

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

Air quality in nearby cities

Hillsborough, California

San Bruno, California

Burlingame, California

South San Francisco, California

San Mateo, California

Pacifica, California

How accurate is California, USA air quality data?

Air quality levels in US

Frequently asked questions

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

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

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

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

Which pollutant is found most often in Millbrae, California?

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

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

What are the current PM10 levels at Millbrae, California?

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

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

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

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

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

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

What are the current PM₁₀ levels at Millbrae, California?

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

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

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