What are the current PM10 levels at Millbrae, California?

The current PM10 levels in Millbrae, California are 23.46 μg/m3.

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

The current sulfur dioxide (SO2) levels in Millbrae, California are 0.843 ppb.

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

The current ozone (O3) levels at Millbrae, California is 16.192 ppm.

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

The current nitrogen dioxide (NO2) levels at Millbrae, California is 4.931 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 7.771 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)

7.77 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

23.46 μg/m³

155

255

425

605+

Ozone (O₃)

16.19 ppb

201

201+

Sulfur Dioxide (SO₂)

0.84 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.93 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.24 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
2025-10-21T14:00:00.000Z	56 \| moderate	12.147 \| fine	66.002 \| fine	8.09 \| good	0.66 \| good	27.128 \| good	0.603 \| good
2025-10-21T15:00:00.000Z	62 \| moderate	14.861 \| fine	62.686 \| fine	7.275 \| good	0.762 \| good	29.591 \| good	0.708 \| good
2025-10-21T16:00:00.000Z	62 \| moderate	15.239 \| fine	65.336 \| fine	6.938 \| good	0.78 \| good	36.671 \| good	0.863 \| good
2025-10-21T17:00:00.000Z	58 \| moderate	13.362 \| fine	50.855 \| good	7.69 \| good	0.902 \| good	32.632 \| good	0.829 \| good
2025-10-21T18:00:00.000Z	71 \| moderate	20.32 \| fine	60.997 \| fine	11.289 \| good	1.539 \| good	36.395 \| good	0.447 \| good
2025-10-21T19:00:00.000Z	64 \| moderate	16.066 \| fine	62.064 \| fine	25.438 \| good	1.519 \| good	37.901 \| good	0.345 \| good
2025-10-21T20:00:00.000Z	60 \| moderate	13.508 \| fine	72.977 \| fine	28.38 \| good	1.202 \| good	31.46 \| good	0.244 \| good
2025-10-21T21:00:00.000Z	56 \| moderate	11.992 \| good	60.089 \| fine	35.831 \| good	1.125 \| good	27.512 \| good	0.203 \| good
2025-10-21T22:00:00.000Z	60 \| moderate	13.819 \| fine	67.598 \| fine	38.098 \| good	0.922 \| good	20.796 \| good	0.221 \| good
2025-10-21T23:00:00.000Z	44 \| good	5.857 \| good	47.113 \| good	38.914 \| good	0.81 \| good	6.803 \| good	0.156 \| good
2025-10-22T00:00:00.000Z	49 \| good	8.67 \| good	37.743 \| good	40.574 \| good	0.704 \| good	6.671 \| good	0.204 \| good
2025-10-22T01:00:00.000Z	44 \| good	8.382 \| good	20.205 \| good	40.068 \| good	0.774 \| good	6.151 \| good	0.215 \| good
2025-10-22T02:00:00.000Z	44 \| good	7.837 \| good	26.819 \| good	43.795 \| good	0.683 \| good	7.299 \| good	0.279 \| good
2025-10-22T03:00:00.000Z	27 \| good	5.271 \| good	22.956 \| good	29.481 \| good	1.117 \| good	17.876 \| good	0.214 \| good
2025-10-22T04:00:00.000Z	31 \| good	4.677 \| good	19.772 \| good	33.563 \| good	0.643 \| good	11.181 \| good	0.253 \| good
2025-10-22T05:00:00.000Z	44 \| good	7.973 \| good	29.347 \| good	35.53 \| good	0.682 \| good	10.478 \| good	0.235 \| good
2025-10-22T06:00:00.000Z	33 \| good	6.088 \| good	26.42 \| good	32.144 \| good	0.618 \| good	11.445 \| good	0.235 \| good
2025-10-22T07:00:00.000Z	44 \| good	7.967 \| good	33.198 \| good	36.001 \| good	0.602 \| good	10.995 \| good	0.235 \| good
2025-10-22T08:00:00.000Z	38 \| good	6.974 \| good	30.323 \| good	34.517 \| good	0.558 \| good	9.378 \| good	0.235 \| good
2025-10-22T09:00:00.000Z	38 \| good	6.757 \| good	28.385 \| good	32.129 \| good	0.556 \| good	6.037 \| good	0.218 \| good
2025-10-22T10:00:00.000Z	33 \| good	5.802 \| good	21.838 \| good	27.454 \| good	0.588 \| good	3.636 \| good	0.244 \| good
2025-10-22T11:00:00.000Z	28 \| good	4.881 \| good	22.39 \| good	30.295 \| good	0.623 \| good	2.368 \| good	0.245 \| good
2025-10-22T12:00:00.000Z	29 \| good	4.77 \| good	21.253 \| good	31.315 \| good	0.668 \| good	3.35 \| good	0.218 \| good
2025-10-22T13:00:00.000Z	33 \| good	5.586 \| good	21.584 \| good	30.177 \| good	0.52 \| good	2.73 \| good	0.156 \| good
2025-10-22T14:00:00.000Z	33 \| good	6.035 \| good	25.556 \| good	31.573 \| good	0.98 \| good	3.977 \| good	0.235 \| good
2025-10-22T15:00:00.000Z	38 \| good	6.817 \| good	18.32 \| good	30.208 \| good	0.943 \| good	3.938 \| good	0.235 \| good
2025-10-22T16:00:00.000Z	44 \| good	8.129 \| good	20.457 \| good	29.752 \| good	0.964 \| good	5.892 \| good	0.247 \| good
2025-10-22T17:00:00.000Z	44 \| good	7.59 \| good	28.6 \| good	33.951 \| good	1.293 \| good	6.513 \| good	0.304 \| good
2025-10-22T18:00:00.000Z	38 \| good	7.41 \| good	29.964 \| good	29.484 \| good	1.34 \| good	8.296 \| good	0.317 \| good
2025-10-22T19:00:00.000Z	38 \| good	6.845 \| good	31.416 \| good	31.257 \| good	0.644 \| good	7.474 \| good	0.302 \| good
2025-10-22T20:00:00.000Z	38 \| good	6.798 \| good	23.64 \| good	31.523 \| good	0.434 \| good	5.496 \| good	0.286 \| good
2025-10-22T21:00:00.000Z	38 \| good	7.397 \| good	32.2 \| good	33.675 \| good	0.416 \| good	4.203 \| good	0.264 \| good
2025-10-22T22:00:00.000Z	38 \| good	6.896 \| good	25.778 \| good	33.112 \| good	0.514 \| good	3.549 \| good	0.281 \| good
2025-10-22T23:00:00.000Z	38 \| good	6.895 \| good	31.333 \| good	32.132 \| good	0.657 \| good	3.264 \| good	0.264 \| good
2025-10-23T00:00:00.000Z	38 \| good	7.415 \| good	31.248 \| good	35.738 \| good	1.958 \| good	4.793 \| good	0.286 \| good
2025-10-23T01:00:00.000Z	38 \| good	6.747 \| good	28.299 \| good	35.142 \| good	1.491 \| good	6.399 \| good	0.264 \| good
2025-10-23T02:00:00.000Z	38 \| good	7.141 \| good	29.057 \| good	33.767 \| good	0.528 \| good	3.798 \| good	0.286 \| good
2025-10-23T03:00:00.000Z	44 \| good	7.709 \| good	33.393 \| good	30.774 \| good	0.452 \| good	5.713 \| good	0.286 \| good
2025-10-23T04:00:00.000Z	38 \| good	7.309 \| good	25.28 \| good	31.268 \| good	0.502 \| good	5.526 \| good	0.338 \| good
2025-10-23T05:00:00.000Z	29 \| good	5.386 \| good	18.934 \| good	31.099 \| good	0.544 \| good	6.104 \| good	0.338 \| good
2025-10-23T06:00:00.000Z	38 \| good	6.808 \| good	28.453 \| good	27.001 \| good	0.522 \| good	4.536 \| good	0.281 \| good
2025-10-23T07:00:00.000Z	27 \| good	5.408 \| good	19.597 \| good	26.825 \| good	0.502 \| good	4.701 \| good	0.281 \| good
2025-10-23T08:00:00.000Z	27 \| good	5.495 \| good	18.069 \| good	26.774 \| good	0.504 \| good	4.982 \| good	0.299 \| good
2025-10-23T09:00:00.000Z	38 \| good	7.356 \| good	29.204 \| good	18.191 \| good	0.52 \| good	4.465 \| good	0.25 \| good
2025-10-23T10:00:00.000Z	38 \| good	7.395 \| good	18.183 \| good	22.182 \| good	0.574 \| good	4.602 \| good	0.279 \| good
2025-10-23T11:00:00.000Z	38 \| good	6.624 \| good	20.214 \| good	20.661 \| good	0.572 \| good	4.492 \| good	0.301 \| good
2025-10-23T12:00:00.000Z	33 \| good	6.243 \| good	20.596 \| good	16.416 \| good	0.551 \| good	4 \| good	0.301 \| good
2025-10-23T13:00:00.000Z	44 \| good	7.771 \| good	23.46 \| good	16.192 \| good	0.843 \| good	4.931 \| good	0.237 \| good
2025-10-23T13:00:00.000Z	44 \| good	7.771 \| good	23.46 \| good	16.192 \| good	0.843 \| good	4.931 \| good	0.237 \| good
2025-10-23T14:00:00.000Z	22 \| good	3.521 \| good	15.849 \| good	19.669 \| good	0.69 \| good	4.9 \| good	0.134 \| good
2025-10-23T15:00:00.000Z	20 \| good	3.075 \| good	12.15 \| good	22.36 \| good	0.714 \| good	5.545 \| good	0.138 \| good
2025-10-23T16:00:00.000Z	24 \| good	2.604 \| good	10.922 \| good	25.966 \| good	0.819 \| good	4.773 \| good	0.135 \| good
2025-10-23T17:00:00.000Z	28 \| good	3.749 \| good	16.045 \| good	29.987 \| good	0.925 \| good	4.002 \| good	0.132 \| good
2025-10-23T18:00:00.000Z	31 \| good	4.213 \| good	18.796 \| good	32.647 \| good	1.03 \| good	3.231 \| good	0.129 \| good
2025-10-23T19:00:00.000Z	31 \| good	4.541 \| good	19.818 \| good	33.705 \| good	1.115 \| good	3.105 \| good	0.128 \| good
2025-10-23T20:00:00.000Z	32 \| good	4.432 \| good	19.013 \| good	35.382 \| good	1.2 \| good	2.978 \| good	0.128 \| good
2025-10-23T21:00:00.000Z	34 \| good	4.357 \| good	18.907 \| good	36.518 \| good	1.285 \| good	2.852 \| good	0.127 \| good
2025-10-23T22:00:00.000Z	34 \| good	4.373 \| good	19.036 \| good	37.447 \| good	1.224 \| good	3.042 \| good	0.125 \| good
2025-10-23T23:00:00.000Z	34 \| good	4.719 \| good	20.849 \| good	36.638 \| good	1.163 \| good	3.231 \| good	0.123 \| good
2025-10-24T00:00:00.000Z	34 \| good	3.348 \| good	14.864 \| good	37.016 \| good	1.103 \| good	3.421 \| good	0.121 \| good
2025-10-24T01:00:00.000Z	33 \| good	4.286 \| good	19.006 \| good	35.71 \| good	0.981 \| good	4.909 \| good	0.127 \| good
2025-10-24T02:00:00.000Z	29 \| good	4.499 \| good	19.223 \| good	31.48 \| good	0.858 \| good	6.397 \| good	0.133 \| good
2025-10-24T03:00:00.000Z	28 \| good	4.479 \| good	19.194 \| good	29.631 \| good	0.736 \| good	7.886 \| good	0.14 \| good
2025-10-24T04:00:00.000Z	23 \| good	3.944 \| good	17.119 \| good	25.407 \| good	0.722 \| good	8.101 \| good	0.14 \| good
2025-10-24T05:00:00.000Z	22 \| good	3 \| good	12.405 \| good	24.411 \| good	0.708 \| good	8.316 \| good	0.14 \| good
2025-10-24T06:00:00.000Z	23 \| good	2.829 \| good	11.508 \| good	24.689 \| good	0.694 \| good	8.531 \| good	0.14 \| good
2025-10-24T07:00:00.000Z	23 \| good	2.151 \| good	9.089 \| good	25.406 \| good	0.64 \| good	8.078 \| good	0.137 \| good
2025-10-24T08:00:00.000Z	24 \| good	2.792 \| good	11.428 \| good	25.743 \| good	0.586 \| good	7.626 \| good	0.134 \| good
2025-10-24T09:00:00.000Z	23 \| good	2.382 \| good	10.131 \| good	25.481 \| good	0.532 \| good	7.173 \| good	0.131 \| good
2025-10-24T10:00:00.000Z	23 \| good	2.227 \| good	9.235 \| good	25.063 \| good	0.55 \| good	6.789 \| good	0.128 \| good
2025-10-24T11:00:00.000Z	22 \| good	2.299 \| good	9.29 \| good	23.95 \| good	0.568 \| good	6.405 \| good	0.125 \| good
2025-10-24T12:00:00.000Z	21 \| good	2.785 \| good	11.43 \| good	23.076 \| good	0.585 \| good	6.021 \| good	0.122 \| good
2025-10-24T13:00:00.000Z	21 \| good	1.913 \| good	8.053 \| good	22.928 \| good	0.595 \| good	6.15 \| good	0.127 \| good
2025-10-24T14:00:00.000Z	18 \| good	2.13 \| good	8.333 \| good	19.125 \| good	0.604 \| good	6.279 \| good	0.132 \| good
2025-10-24T15:00:00.000Z	18 \| good	1.732 \| good	7.052 \| good	18.943 \| good	0.614 \| good	6.408 \| good	0.137 \| good
2025-10-24T16:00:00.000Z	20 \| good	1.275 \| good	4.987 \| good	22.341 \| good	0.649 \| good	5.088 \| good	0.126 \| good
2025-10-24T17:00:00.000Z	23 \| good	1.879 \| good	7.871 \| good	25.15 \| good	0.685 \| good	3.768 \| good	0.114 \| good
2025-10-24T18:00:00.000Z	26 \| good	1.287 \| good	4.982 \| good	27.822 \| good	0.72 \| good	2.448 \| good	0.103 \| good
2025-10-24T19:00:00.000Z	28 \| good	1.178 \| good	4.908 \| good	30.115 \| good	0.72 \| good	2.181 \| good	0.101 \| good
2025-10-24T20:00:00.000Z	28 \| good	1.977 \| good	7.983 \| good	29.777 \| good	0.721 \| good	1.914 \| good	0.099 \| good
2025-10-24T21:00:00.000Z	27 \| good	2.777 \| good	11.167 \| good	29.119 \| good	0.721 \| good	1.646 \| good	0.097 \| good
2025-10-24T22:00:00.000Z	28 \| good	2.89 \| good	12.161 \| good	29.566 \| good	0.722 \| good	1.992 \| good	0.098 \| good
2025-10-24T23:00:00.000Z	28 \| good	3.584 \| good	15.922 \| good	29.859 \| good	0.722 \| good	2.338 \| good	0.099 \| good
2025-10-25T00:00:00.000Z	28 \| good	2.052 \| good	8.195 \| good	30.394 \| good	0.723 \| good	2.683 \| good	0.099 \| good
2025-10-25T01:00:00.000Z	27 \| good	2.791 \| good	11.401 \| good	28.768 \| good	0.789 \| good	3.924 \| good	0.105 \| good
2025-10-25T02:00:00.000Z	24 \| good	2.823 \| good	11.444 \| good	26.263 \| good	0.855 \| good	5.164 \| good	0.11 \| good
2025-10-25T03:00:00.000Z	24 \| good	4.224 \| good	18.294 \| good	25.524 \| good	0.921 \| good	6.404 \| good	0.115 \| good
2025-10-25T04:00:00.000Z	22 \| good	4.096 \| good	18.079 \| good	23.872 \| good	0.975 \| good	9.05 \| good	0.128 \| good
2025-10-25T05:00:00.000Z	20 \| good	3.125 \| good	12.518 \| good	22.296 \| good	1.03 \| good	11.696 \| good	0.142 \| good
2025-10-25T06:00:00.000Z	20 \| good	2.975 \| good	12.387 \| good	21.686 \| good	1.084 \| good	14.342 \| good	0.155 \| good
2025-10-25T07:00:00.000Z	21 \| good	2.289 \| good	9.222 \| good	23.435 \| good	0.954 \| good	11.653 \| good	0.141 \| good
2025-10-25T08:00:00.000Z	22 \| good	2.644 \| good	10.458 \| good	23.728 \| good	0.824 \| good	8.964 \| good	0.128 \| good
2025-10-25T09:00:00.000Z	20 \| good	1.795 \| good	7.18 \| good	21.97 \| good	0.694 \| good	6.275 \| good	0.114 \| good
2025-10-25T10:00:00.000Z	20 \| good	1.379 \| good	5.21 \| good	21.772 \| good	0.644 \| good	5.667 \| good	0.112 \| good
2025-10-25T11:00:00.000Z	21 \| good	1.449 \| good	6.149 \| good	23.303 \| good	0.594 \| good	5.06 \| good	0.11 \| good
2025-10-25T12:00:00.000Z	25 \| good	1.573 \| good	6.239 \| good	27.424 \| good	0.544 \| good	4.452 \| good	0.107 \| good
2025-10-25T13:00:00.000Z	26 \| good	1.467 \| good	6.15 \| good	28.402 \| good	0.576 \| good	5.101 \| good	0.112 \| 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

Air quality levels in US

Check live rankings of places in the USA affected by air pollution.

View Polluted Cities

Check live rankings of places in the USA with the cleanest air.

View Clean Cities

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 2025-10-23.

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

The best air quality in Millbrae, California was recorded at 08:00:00 on 2025-10-23.

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

The real-time air quality index in Millbrae, California is 44, 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 7.771 μg/m³.

What are the current PM₁₀ levels at Millbrae, California?

The current PM₁₀ levels in Millbrae, California are 23.46 μg/m³.

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

The current carbon monoxide (CO) level in Millbrae, California is 0.237 ppm.

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

The current sulfur dioxide (SO₂) levels in Millbrae, California are 0.843 ppb.

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

The current ozone (O₃) levels at Millbrae, California is 16.192 ppm.

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

The current nitrogen dioxide (NO₂) levels at Millbrae, California is 4.931 ppb.

Certified

APIs

Refund Policy

Historical Climate Data

Terms & Conditions

Refund Policy

Terms & Conditions

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-10-21T14:00:00.000Z	56 \| moderate	12.147 \| fine	66.002 \| fine	8.09 \| good	0.66 \| good	27.128 \| good	0.603 \| good
2025-10-21T15:00:00.000Z	62 \| moderate	14.861 \| fine	62.686 \| fine	7.275 \| good	0.762 \| good	29.591 \| good	0.708 \| good
2025-10-21T16:00:00.000Z	62 \| moderate	15.239 \| fine	65.336 \| fine	6.938 \| good	0.78 \| good	36.671 \| good	0.863 \| good
2025-10-21T17:00:00.000Z	58 \| moderate	13.362 \| fine	50.855 \| good	7.69 \| good	0.902 \| good	32.632 \| good	0.829 \| good
2025-10-21T18:00:00.000Z	71 \| moderate	20.32 \| fine	60.997 \| fine	11.289 \| good	1.539 \| good	36.395 \| good	0.447 \| good
2025-10-21T19:00:00.000Z	64 \| moderate	16.066 \| fine	62.064 \| fine	25.438 \| good	1.519 \| good	37.901 \| good	0.345 \| good
2025-10-21T20:00:00.000Z	60 \| moderate	13.508 \| fine	72.977 \| fine	28.38 \| good	1.202 \| good	31.46 \| good	0.244 \| good
2025-10-21T21:00:00.000Z	56 \| moderate	11.992 \| good	60.089 \| fine	35.831 \| good	1.125 \| good	27.512 \| good	0.203 \| good
2025-10-21T22:00:00.000Z	60 \| moderate	13.819 \| fine	67.598 \| fine	38.098 \| good	0.922 \| good	20.796 \| good	0.221 \| good
2025-10-21T23:00:00.000Z	44 \| good	5.857 \| good	47.113 \| good	38.914 \| good	0.81 \| good	6.803 \| good	0.156 \| good
2025-10-22T00:00:00.000Z	49 \| good	8.67 \| good	37.743 \| good	40.574 \| good	0.704 \| good	6.671 \| good	0.204 \| good
2025-10-22T01:00:00.000Z	44 \| good	8.382 \| good	20.205 \| good	40.068 \| good	0.774 \| good	6.151 \| good	0.215 \| good
2025-10-22T02:00:00.000Z	44 \| good	7.837 \| good	26.819 \| good	43.795 \| good	0.683 \| good	7.299 \| good	0.279 \| good
2025-10-22T03:00:00.000Z	27 \| good	5.271 \| good	22.956 \| good	29.481 \| good	1.117 \| good	17.876 \| good	0.214 \| good
2025-10-22T04:00:00.000Z	31 \| good	4.677 \| good	19.772 \| good	33.563 \| good	0.643 \| good	11.181 \| good	0.253 \| good
2025-10-22T05:00:00.000Z	44 \| good	7.973 \| good	29.347 \| good	35.53 \| good	0.682 \| good	10.478 \| good	0.235 \| good
2025-10-22T06:00:00.000Z	33 \| good	6.088 \| good	26.42 \| good	32.144 \| good	0.618 \| good	11.445 \| good	0.235 \| good
2025-10-22T07:00:00.000Z	44 \| good	7.967 \| good	33.198 \| good	36.001 \| good	0.602 \| good	10.995 \| good	0.235 \| good
2025-10-22T08:00:00.000Z	38 \| good	6.974 \| good	30.323 \| good	34.517 \| good	0.558 \| good	9.378 \| good	0.235 \| good
2025-10-22T09:00:00.000Z	38 \| good	6.757 \| good	28.385 \| good	32.129 \| good	0.556 \| good	6.037 \| good	0.218 \| good
2025-10-22T10:00:00.000Z	33 \| good	5.802 \| good	21.838 \| good	27.454 \| good	0.588 \| good	3.636 \| good	0.244 \| good
2025-10-22T11:00:00.000Z	28 \| good	4.881 \| good	22.39 \| good	30.295 \| good	0.623 \| good	2.368 \| good	0.245 \| good
2025-10-22T12:00:00.000Z	29 \| good	4.77 \| good	21.253 \| good	31.315 \| good	0.668 \| good	3.35 \| good	0.218 \| good
2025-10-22T13:00:00.000Z	33 \| good	5.586 \| good	21.584 \| good	30.177 \| good	0.52 \| good	2.73 \| good	0.156 \| good
2025-10-22T14:00:00.000Z	33 \| good	6.035 \| good	25.556 \| good	31.573 \| good	0.98 \| good	3.977 \| good	0.235 \| good
2025-10-22T15:00:00.000Z	38 \| good	6.817 \| good	18.32 \| good	30.208 \| good	0.943 \| good	3.938 \| good	0.235 \| good
2025-10-22T16:00:00.000Z	44 \| good	8.129 \| good	20.457 \| good	29.752 \| good	0.964 \| good	5.892 \| good	0.247 \| good
2025-10-22T17:00:00.000Z	44 \| good	7.59 \| good	28.6 \| good	33.951 \| good	1.293 \| good	6.513 \| good	0.304 \| good
2025-10-22T18:00:00.000Z	38 \| good	7.41 \| good	29.964 \| good	29.484 \| good	1.34 \| good	8.296 \| good	0.317 \| good
2025-10-22T19:00:00.000Z	38 \| good	6.845 \| good	31.416 \| good	31.257 \| good	0.644 \| good	7.474 \| good	0.302 \| good
2025-10-22T20:00:00.000Z	38 \| good	6.798 \| good	23.64 \| good	31.523 \| good	0.434 \| good	5.496 \| good	0.286 \| good
2025-10-22T21:00:00.000Z	38 \| good	7.397 \| good	32.2 \| good	33.675 \| good	0.416 \| good	4.203 \| good	0.264 \| good
2025-10-22T22:00:00.000Z	38 \| good	6.896 \| good	25.778 \| good	33.112 \| good	0.514 \| good	3.549 \| good	0.281 \| good
2025-10-22T23:00:00.000Z	38 \| good	6.895 \| good	31.333 \| good	32.132 \| good	0.657 \| good	3.264 \| good	0.264 \| good
2025-10-23T00:00:00.000Z	38 \| good	7.415 \| good	31.248 \| good	35.738 \| good	1.958 \| good	4.793 \| good	0.286 \| good
2025-10-23T01:00:00.000Z	38 \| good	6.747 \| good	28.299 \| good	35.142 \| good	1.491 \| good	6.399 \| good	0.264 \| good
2025-10-23T02:00:00.000Z	38 \| good	7.141 \| good	29.057 \| good	33.767 \| good	0.528 \| good	3.798 \| good	0.286 \| good
2025-10-23T03:00:00.000Z	44 \| good	7.709 \| good	33.393 \| good	30.774 \| good	0.452 \| good	5.713 \| good	0.286 \| good
2025-10-23T04:00:00.000Z	38 \| good	7.309 \| good	25.28 \| good	31.268 \| good	0.502 \| good	5.526 \| good	0.338 \| good
2025-10-23T05:00:00.000Z	29 \| good	5.386 \| good	18.934 \| good	31.099 \| good	0.544 \| good	6.104 \| good	0.338 \| good
2025-10-23T06:00:00.000Z	38 \| good	6.808 \| good	28.453 \| good	27.001 \| good	0.522 \| good	4.536 \| good	0.281 \| good
2025-10-23T07:00:00.000Z	27 \| good	5.408 \| good	19.597 \| good	26.825 \| good	0.502 \| good	4.701 \| good	0.281 \| good
2025-10-23T08:00:00.000Z	27 \| good	5.495 \| good	18.069 \| good	26.774 \| good	0.504 \| good	4.982 \| good	0.299 \| good
2025-10-23T09:00:00.000Z	38 \| good	7.356 \| good	29.204 \| good	18.191 \| good	0.52 \| good	4.465 \| good	0.25 \| good
2025-10-23T10:00:00.000Z	38 \| good	7.395 \| good	18.183 \| good	22.182 \| good	0.574 \| good	4.602 \| good	0.279 \| good
2025-10-23T11:00:00.000Z	38 \| good	6.624 \| good	20.214 \| good	20.661 \| good	0.572 \| good	4.492 \| good	0.301 \| good
2025-10-23T12:00:00.000Z	33 \| good	6.243 \| good	20.596 \| good	16.416 \| good	0.551 \| good	4 \| good	0.301 \| good
2025-10-23T13:00:00.000Z	44 \| good	7.771 \| good	23.46 \| good	16.192 \| good	0.843 \| good	4.931 \| good	0.237 \| good
2025-10-23T13:00:00.000Z	44 \| good	7.771 \| good	23.46 \| good	16.192 \| good	0.843 \| good	4.931 \| good	0.237 \| good
2025-10-23T14:00:00.000Z	22 \| good	3.521 \| good	15.849 \| good	19.669 \| good	0.69 \| good	4.9 \| good	0.134 \| good
2025-10-23T15:00:00.000Z	20 \| good	3.075 \| good	12.15 \| good	22.36 \| good	0.714 \| good	5.545 \| good	0.138 \| good
2025-10-23T16:00:00.000Z	24 \| good	2.604 \| good	10.922 \| good	25.966 \| good	0.819 \| good	4.773 \| good	0.135 \| good
2025-10-23T17:00:00.000Z	28 \| good	3.749 \| good	16.045 \| good	29.987 \| good	0.925 \| good	4.002 \| good	0.132 \| good
2025-10-23T18:00:00.000Z	31 \| good	4.213 \| good	18.796 \| good	32.647 \| good	1.03 \| good	3.231 \| good	0.129 \| good
2025-10-23T19:00:00.000Z	31 \| good	4.541 \| good	19.818 \| good	33.705 \| good	1.115 \| good	3.105 \| good	0.128 \| good
2025-10-23T20:00:00.000Z	32 \| good	4.432 \| good	19.013 \| good	35.382 \| good	1.2 \| good	2.978 \| good	0.128 \| good
2025-10-23T21:00:00.000Z	34 \| good	4.357 \| good	18.907 \| good	36.518 \| good	1.285 \| good	2.852 \| good	0.127 \| good
2025-10-23T22:00:00.000Z	34 \| good	4.373 \| good	19.036 \| good	37.447 \| good	1.224 \| good	3.042 \| good	0.125 \| good
2025-10-23T23:00:00.000Z	34 \| good	4.719 \| good	20.849 \| good	36.638 \| good	1.163 \| good	3.231 \| good	0.123 \| good
2025-10-24T00:00:00.000Z	34 \| good	3.348 \| good	14.864 \| good	37.016 \| good	1.103 \| good	3.421 \| good	0.121 \| good
2025-10-24T01:00:00.000Z	33 \| good	4.286 \| good	19.006 \| good	35.71 \| good	0.981 \| good	4.909 \| good	0.127 \| good
2025-10-24T02:00:00.000Z	29 \| good	4.499 \| good	19.223 \| good	31.48 \| good	0.858 \| good	6.397 \| good	0.133 \| good
2025-10-24T03:00:00.000Z	28 \| good	4.479 \| good	19.194 \| good	29.631 \| good	0.736 \| good	7.886 \| good	0.14 \| good
2025-10-24T04:00:00.000Z	23 \| good	3.944 \| good	17.119 \| good	25.407 \| good	0.722 \| good	8.101 \| good	0.14 \| good
2025-10-24T05:00:00.000Z	22 \| good	3 \| good	12.405 \| good	24.411 \| good	0.708 \| good	8.316 \| good	0.14 \| good
2025-10-24T06:00:00.000Z	23 \| good	2.829 \| good	11.508 \| good	24.689 \| good	0.694 \| good	8.531 \| good	0.14 \| good
2025-10-24T07:00:00.000Z	23 \| good	2.151 \| good	9.089 \| good	25.406 \| good	0.64 \| good	8.078 \| good	0.137 \| good
2025-10-24T08:00:00.000Z	24 \| good	2.792 \| good	11.428 \| good	25.743 \| good	0.586 \| good	7.626 \| good	0.134 \| good
2025-10-24T09:00:00.000Z	23 \| good	2.382 \| good	10.131 \| good	25.481 \| good	0.532 \| good	7.173 \| good	0.131 \| good
2025-10-24T10:00:00.000Z	23 \| good	2.227 \| good	9.235 \| good	25.063 \| good	0.55 \| good	6.789 \| good	0.128 \| good
2025-10-24T11:00:00.000Z	22 \| good	2.299 \| good	9.29 \| good	23.95 \| good	0.568 \| good	6.405 \| good	0.125 \| good
2025-10-24T12:00:00.000Z	21 \| good	2.785 \| good	11.43 \| good	23.076 \| good	0.585 \| good	6.021 \| good	0.122 \| good
2025-10-24T13:00:00.000Z	21 \| good	1.913 \| good	8.053 \| good	22.928 \| good	0.595 \| good	6.15 \| good	0.127 \| good
2025-10-24T14:00:00.000Z	18 \| good	2.13 \| good	8.333 \| good	19.125 \| good	0.604 \| good	6.279 \| good	0.132 \| good
2025-10-24T15:00:00.000Z	18 \| good	1.732 \| good	7.052 \| good	18.943 \| good	0.614 \| good	6.408 \| good	0.137 \| good
2025-10-24T16:00:00.000Z	20 \| good	1.275 \| good	4.987 \| good	22.341 \| good	0.649 \| good	5.088 \| good	0.126 \| good
2025-10-24T17:00:00.000Z	23 \| good	1.879 \| good	7.871 \| good	25.15 \| good	0.685 \| good	3.768 \| good	0.114 \| good
2025-10-24T18:00:00.000Z	26 \| good	1.287 \| good	4.982 \| good	27.822 \| good	0.72 \| good	2.448 \| good	0.103 \| good
2025-10-24T19:00:00.000Z	28 \| good	1.178 \| good	4.908 \| good	30.115 \| good	0.72 \| good	2.181 \| good	0.101 \| good
2025-10-24T20:00:00.000Z	28 \| good	1.977 \| good	7.983 \| good	29.777 \| good	0.721 \| good	1.914 \| good	0.099 \| good
2025-10-24T21:00:00.000Z	27 \| good	2.777 \| good	11.167 \| good	29.119 \| good	0.721 \| good	1.646 \| good	0.097 \| good
2025-10-24T22:00:00.000Z	28 \| good	2.89 \| good	12.161 \| good	29.566 \| good	0.722 \| good	1.992 \| good	0.098 \| good
2025-10-24T23:00:00.000Z	28 \| good	3.584 \| good	15.922 \| good	29.859 \| good	0.722 \| good	2.338 \| good	0.099 \| good
2025-10-25T00:00:00.000Z	28 \| good	2.052 \| good	8.195 \| good	30.394 \| good	0.723 \| good	2.683 \| good	0.099 \| good
2025-10-25T01:00:00.000Z	27 \| good	2.791 \| good	11.401 \| good	28.768 \| good	0.789 \| good	3.924 \| good	0.105 \| good
2025-10-25T02:00:00.000Z	24 \| good	2.823 \| good	11.444 \| good	26.263 \| good	0.855 \| good	5.164 \| good	0.11 \| good
2025-10-25T03:00:00.000Z	24 \| good	4.224 \| good	18.294 \| good	25.524 \| good	0.921 \| good	6.404 \| good	0.115 \| good
2025-10-25T04:00:00.000Z	22 \| good	4.096 \| good	18.079 \| good	23.872 \| good	0.975 \| good	9.05 \| good	0.128 \| good
2025-10-25T05:00:00.000Z	20 \| good	3.125 \| good	12.518 \| good	22.296 \| good	1.03 \| good	11.696 \| good	0.142 \| good
2025-10-25T06:00:00.000Z	20 \| good	2.975 \| good	12.387 \| good	21.686 \| good	1.084 \| good	14.342 \| good	0.155 \| good
2025-10-25T07:00:00.000Z	21 \| good	2.289 \| good	9.222 \| good	23.435 \| good	0.954 \| good	11.653 \| good	0.141 \| good
2025-10-25T08:00:00.000Z	22 \| good	2.644 \| good	10.458 \| good	23.728 \| good	0.824 \| good	8.964 \| good	0.128 \| good
2025-10-25T09:00:00.000Z	20 \| good	1.795 \| good	7.18 \| good	21.97 \| good	0.694 \| good	6.275 \| good	0.114 \| good
2025-10-25T10:00:00.000Z	20 \| good	1.379 \| good	5.21 \| good	21.772 \| good	0.644 \| good	5.667 \| good	0.112 \| good
2025-10-25T11:00:00.000Z	21 \| good	1.449 \| good	6.149 \| good	23.303 \| good	0.594 \| good	5.06 \| good	0.11 \| good
2025-10-25T12:00:00.000Z	25 \| good	1.573 \| good	6.239 \| good	27.424 \| good	0.544 \| good	4.452 \| good	0.107 \| good
2025-10-25T13:00:00.000Z	26 \| good	1.467 \| good	6.15 \| good	28.402 \| good	0.576 \| good	5.101 \| good	0.112 \| 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?