What are the current PM10 levels at Los Altos, California?

The current PM10 levels in Los Altos, California are 40.949 μg/m3.

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

The current sulfur dioxide (SO2) levels in Los Altos, California are 0.43 ppb.

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

The current ozone (O3) levels at Los Altos, California is 45.823 ppm.

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

The current nitrogen dioxide (NO2) levels at Los Altos, California is 5.079 ppb.

Real-time air quality index in Los Altos, California today

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

The measured PM2.5 levels in Los Altos, California at present are 8.899 μg/m3.

Stay updated with real-time air quality in Los Altos, 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

Los Altos, California

Last updated: ... (Local time)

Common air pollutants in Los Altos, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

4.52 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

20.85 μg/m³

155

255

425

605+

Ozone (O₃)

38.89 ppb

201

201+

Sulfur Dioxide (SO₂)

0.46 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

5.57 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.25 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Los Altos, California

Get Live Pollen Counts

Los Altos, California

Scroll To Air Quality Map

Track live Los Altos, California air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-06-11T03:00:00.000Z	44 \| good	8.098 \| good	35.86 \| good	31.512 \| good	0.53 \| good	6.665 \| good	0.214 \| good
2026-06-11T04:00:00.000Z	54 \| moderate	10.982 \| good	48.273 \| good	26.746 \| good	0.487 \| good	8.133 \| good	0.204 \| good
2026-06-11T05:00:00.000Z	56 \| moderate	12.187 \| fine	55.071 \| fine	26.606 \| good	0.409 \| good	14.46 \| good	0.296 \| good
2026-06-11T06:00:00.000Z	56 \| moderate	12.072 \| good	54.77 \| good	20.241 \| good	0.63 \| good	14.903 \| good	0.305 \| good
2026-06-11T07:00:00.000Z	56 \| moderate	12.134 \| fine	53.374 \| good	18.386 \| good	0.529 \| good	14.491 \| good	0.313 \| good
2026-06-11T08:00:00.000Z	62 \| moderate	14.58 \| fine	63.892 \| fine	16.204 \| good	0.681 \| good	21.791 \| good	0.401 \| good
2026-06-11T09:00:00.000Z	60 \| moderate	14.486 \| fine	64.314 \| fine	13.269 \| good	0.506 \| good	23.004 \| good	0.401 \| good
2026-06-11T10:00:00.000Z	64 \| moderate	15.61 \| fine	67.164 \| fine	10.205 \| good	0.753 \| good	21.416 \| good	0.398 \| good
2026-06-11T11:00:00.000Z	58 \| moderate	13.384 \| fine	58.717 \| fine	9.851 \| good	0.438 \| good	10.129 \| good	0.311 \| good
2026-06-11T12:00:00.000Z	56 \| moderate	11.526 \| good	50.584 \| good	13.025 \| good	0.415 \| good	10.141 \| good	0.311 \| good
2026-06-11T13:00:00.000Z	56 \| moderate	11.928 \| good	52.17 \| good	12.829 \| good	0.555 \| good	10.357 \| good	0.32 \| good
2026-06-11T14:00:00.000Z	44 \| good	8.455 \| good	36.909 \| good	10.014 \| good	0.405 \| good	12.561 \| good	0.407 \| good
2026-06-11T15:00:00.000Z	49 \| good	8.626 \| good	37.189 \| good	15.582 \| good	0.531 \| good	10.688 \| good	0.438 \| good
2026-06-11T16:00:00.000Z	49 \| good	9.338 \| good	41.13 \| good	16.076 \| good	0.482 \| good	11.752 \| good	0.43 \| good
2026-06-11T17:00:00.000Z	58 \| moderate	12.717 \| fine	56.12 \| fine	20.028 \| good	0.705 \| good	16.606 \| good	0.512 \| good
2026-06-11T18:00:00.000Z	49 \| good	8.907 \| good	37.948 \| good	41.184 \| good	0.813 \| good	6.106 \| good	0.228 \| good
2026-06-11T19:00:00.000Z	39 \| good	6.519 \| good	29.143 \| good	42.006 \| good	0.638 \| good	4.579 \| good	0.212 \| good
2026-06-11T20:00:00.000Z	48 \| good	5.27 \| good	23.359 \| good	52.001 \| good	0.567 \| good	3.363 \| good	0.127 \| good
2026-06-11T21:00:00.000Z	49 \| good	3.8 \| good	17.23 \| good	52.762 \| good	0.615 \| good	2.954 \| good	0.122 \| good
2026-06-11T22:00:00.000Z	51 \| moderate	3.955 \| good	18.423 \| good	55.291 \| fine	0.571 \| good	3.325 \| good	0.209 \| good
2026-06-11T23:00:00.000Z	58 \| moderate	7.029 \| good	31.336 \| good	57.465 \| fine	0.512 \| good	6.412 \| good	0.209 \| good
2026-06-12T00:00:00.000Z	54 \| moderate	11.06 \| good	49.628 \| good	52.847 \| good	0.461 \| good	8.676 \| good	0.296 \| good
2026-06-12T01:00:00.000Z	58 \| moderate	12.747 \| fine	57.104 \| fine	39.961 \| good	0.71 \| good	6.21 \| good	0.209 \| good
2026-06-12T02:00:00.000Z	62 \| moderate	14.634 \| fine	65.129 \| fine	37.005 \| good	0.608 \| good	6.161 \| good	0.212 \| good
2026-06-12T03:00:00.000Z	60 \| moderate	14.119 \| fine	62.545 \| fine	34.853 \| good	0.46 \| good	4.484 \| good	0.212 \| good
2026-06-12T04:00:00.000Z	62 \| moderate	15.13 \| fine	66.815 \| fine	34.226 \| good	0.498 \| good	5.794 \| good	0.212 \| good
2026-06-12T05:00:00.000Z	66 \| moderate	16.593 \| fine	72.78 \| fine	29.975 \| good	0.661 \| good	7.239 \| good	0.221 \| good
2026-06-12T06:00:00.000Z	62 \| moderate	15.013 \| fine	66.089 \| fine	29.639 \| good	0.623 \| good	4.785 \| good	0.226 \| good
2026-06-12T07:00:00.000Z	62 \| moderate	14.522 \| fine	63.642 \| fine	28.247 \| good	0.619 \| good	4.402 \| good	0.209 \| good
2026-06-12T08:00:00.000Z	49 \| good	9.1 \| good	40.297 \| good	27.059 \| good	0.43 \| good	4.115 \| good	0.209 \| good
2026-06-12T09:00:00.000Z	38 \| good	6.997 \| good	30.443 \| good	27.195 \| good	0.54 \| good	3.416 \| good	0.209 \| good
2026-06-12T10:00:00.000Z	27 \| good	5.173 \| good	22.393 \| good	25.927 \| good	0.357 \| good	3.504 \| good	0.206 \| good
2026-06-12T11:00:00.000Z	27 \| good	4.674 \| good	21.936 \| good	23.965 \| good	0.531 \| good	3.736 \| good	0.206 \| good
2026-06-12T12:00:00.000Z	22 \| good	4.291 \| good	19.329 \| good	23.965 \| good	0.581 \| good	3.751 \| good	0.209 \| good
2026-06-12T13:00:00.000Z	22 \| good	4.416 \| good	19.363 \| good	23.716 \| good	0.603 \| good	3.985 \| good	0.222 \| good
2026-06-12T14:00:00.000Z	22 \| good	3.765 \| good	16.612 \| good	24.065 \| good	0.489 \| good	4.806 \| good	0.212 \| good
2026-06-12T15:00:00.000Z	22 \| good	3.191 \| good	14.52 \| good	23.93 \| good	0.587 \| good	6.706 \| good	0.297 \| good
2026-06-12T16:00:00.000Z	21 \| good	3.108 \| good	13.444 \| good	23.195 \| good	0.525 \| good	7.292 \| good	0.311 \| good
2026-06-12T17:00:00.000Z	22 \| good	3.521 \| good	15.966 \| good	23.075 \| good	0.596 \| good	6.579 \| good	0.309 \| good
2026-06-12T18:00:00.000Z	27 \| good	4.677 \| good	23.287 \| good	25.041 \| good	0.485 \| good	7.186 \| good	0.309 \| good
2026-06-12T19:00:00.000Z	27 \| good	4.632 \| good	21.162 \| good	27.142 \| good	0.486 \| good	7.139 \| good	0.309 \| good
2026-06-12T20:00:00.000Z	38 \| good	6.618 \| good	30.348 \| good	33.337 \| good	0.9 \| good	7.728 \| good	0.3 \| good
2026-06-12T21:00:00.000Z	44 \| good	7.779 \| good	34.65 \| good	38.334 \| good	0.854 \| good	5.776 \| good	0.306 \| good
2026-06-12T22:00:00.000Z	44 \| good	7.535 \| good	33.931 \| good	38.551 \| good	0.411 \| good	4.185 \| good	0.219 \| good
2026-06-12T23:00:00.000Z	33 \| good	5.519 \| good	23.307 \| good	35.313 \| good	0.453 \| good	4.411 \| good	0.212 \| good
2026-06-13T00:00:00.000Z	30 \| good	3.594 \| good	15.703 \| good	32.499 \| good	0.473 \| good	3.864 \| good	0.212 \| good
2026-06-13T01:00:00.000Z	30 \| good	3.929 \| good	17.792 \| good	32.061 \| good	0.459 \| good	3.386 \| good	0.212 \| good
2026-06-13T02:00:00.000Z	30 \| good	3.939 \| good	17.952 \| good	31.524 \| good	0.444 \| good	5.419 \| good	0.218 \| good
2026-06-13T02:00:00.000Z	36 \| good	4.516 \| good	20.848 \| good	38.889 \| good	0.464 \| good	5.57 \| good	0.246 \| good
2026-06-13T00:00:00.000Z	38 \| good	6.745 \| good	29.957 \| good	39.426 \| good	0.577 \| good	1.404 \| good	0.115 \| good
2026-06-13T01:00:00.000Z	44 \| good	7.816 \| good	34.375 \| good	38.181 \| good	0.579 \| good	1.598 \| good	0.114 \| good
2026-06-13T02:00:00.000Z	49 \| good	9.317 \| good	41.692 \| good	33.647 \| good	0.593 \| good	2.021 \| good	0.114 \| good
2026-06-13T03:00:00.000Z	49 \| good	9.165 \| good	40.683 \| good	29.645 \| good	0.613 \| good	2.712 \| good	0.114 \| good
2026-06-13T04:00:00.000Z	49 \| good	9.038 \| good	39.892 \| good	25.022 \| good	0.637 \| good	3.396 \| good	0.116 \| good
2026-06-13T05:00:00.000Z	52 \| moderate	9.646 \| good	42.862 \| good	19.872 \| good	0.665 \| good	3.59 \| good	0.116 \| good
2026-06-13T06:00:00.000Z	56 \| moderate	11.638 \| good	51.729 \| good	18.725 \| good	0.679 \| good	3.808 \| good	0.117 \| good
2026-06-13T07:00:00.000Z	54 \| moderate	11.163 \| good	49.353 \| good	19.069 \| good	0.688 \| good	3.917 \| good	0.118 \| good
2026-06-13T08:00:00.000Z	56 \| moderate	11.599 \| good	51.981 \| good	19.276 \| good	0.685 \| good	3.901 \| good	0.118 \| good
2026-06-13T09:00:00.000Z	54 \| moderate	11.143 \| good	49.656 \| good	17.449 \| good	0.679 \| good	3.625 \| good	0.117 \| good
2026-06-13T10:00:00.000Z	54 \| moderate	10.653 \| good	46.926 \| good	16.986 \| good	0.671 \| good	3.503 \| good	0.115 \| good
2026-06-13T11:00:00.000Z	52 \| moderate	9.878 \| good	43.735 \| good	15.154 \| good	0.662 \| good	3.317 \| good	0.114 \| good
2026-06-13T12:00:00.000Z	52 \| moderate	10.241 \| good	45.38 \| good	16.557 \| good	0.647 \| good	3.359 \| good	0.114 \| good
2026-06-13T13:00:00.000Z	52 \| moderate	9.863 \| good	43.76 \| good	13.998 \| good	0.622 \| good	3.424 \| good	0.114 \| good
2026-06-13T14:00:00.000Z	54 \| moderate	10.864 \| good	48.036 \| good	18.963 \| good	0.618 \| good	2.989 \| good	0.113 \| good
2026-06-13T15:00:00.000Z	58 \| moderate	13.016 \| fine	58.447 \| fine	22.379 \| good	0.629 \| good	2.553 \| good	0.11 \| good
2026-06-13T16:00:00.000Z	60 \| moderate	13.54 \| fine	60.435 \| fine	27.373 \| good	0.627 \| good	2.149 \| good	0.108 \| good
2026-06-13T17:00:00.000Z	56 \| moderate	12.079 \| good	53.855 \| good	36.614 \| good	0.632 \| good	1.857 \| good	0.107 \| good
2026-06-13T18:00:00.000Z	54 \| moderate	10.522 \| good	46.55 \| good	42.47 \| good	0.638 \| good	1.527 \| good	0.105 \| good
2026-06-13T19:00:00.000Z	52 \| moderate	9.75 \| good	43.402 \| good	46.336 \| good	0.644 \| good	1.244 \| good	0.103 \| good
2026-06-13T20:00:00.000Z	52 \| moderate	9.501 \| good	42.38 \| good	46.66 \| good	0.638 \| good	0.984 \| good	0.101 \| good
2026-06-13T21:00:00.000Z	49 \| good	8.674 \| good	38.158 \| good	47.127 \| good	0.627 \| good	0.865 \| good	0.099 \| good
2026-06-13T22:00:00.000Z	44 \| good	8.317 \| good	36.588 \| good	44.655 \| good	0.625 \| good	0.845 \| good	0.097 \| good
2026-06-13T23:00:00.000Z	44 \| good	8.422 \| good	36.941 \| good	40.052 \| good	0.612 \| good	0.885 \| good	0.096 \| good
2026-06-14T00:00:00.000Z	44 \| good	8.168 \| good	35.559 \| good	37.847 \| good	0.597 \| good	1.007 \| good	0.094 \| good
2026-06-14T01:00:00.000Z	49 \| good	8.91 \| good	39.385 \| good	37.394 \| good	0.583 \| good	1.21 \| good	0.093 \| good
2026-06-14T02:00:00.000Z	49 \| good	9.405 \| good	41.908 \| good	33.896 \| good	0.569 \| good	1.62 \| good	0.093 \| good
2026-06-14T03:00:00.000Z	49 \| good	9.333 \| good	41.559 \| good	29.509 \| good	0.567 \| good	2.181 \| good	0.093 \| good
2026-06-14T04:00:00.000Z	49 \| good	9.287 \| good	41.416 \| good	24.525 \| good	0.576 \| good	2.667 \| good	0.093 \| good
2026-06-14T05:00:00.000Z	52 \| moderate	9.727 \| good	43.313 \| good	20.681 \| good	0.593 \| good	2.92 \| good	0.094 \| good
2026-06-14T06:00:00.000Z	52 \| moderate	10.481 \| good	46.338 \| good	17.543 \| good	0.606 \| good	3.198 \| good	0.095 \| good
2026-06-14T07:00:00.000Z	52 \| moderate	10.231 \| good	45.206 \| good	17.361 \| good	0.61 \| good	3.265 \| good	0.095 \| good
2026-06-14T08:00:00.000Z	52 \| moderate	10.347 \| good	45.686 \| good	15.918 \| good	0.602 \| good	3.111 \| good	0.095 \| good
2026-06-14T09:00:00.000Z	52 \| moderate	9.875 \| good	43.963 \| good	13.306 \| good	0.59 \| good	3.139 \| good	0.095 \| good
2026-06-14T10:00:00.000Z	52 \| moderate	10.116 \| good	45.019 \| good	12.176 \| good	0.578 \| good	3.157 \| good	0.095 \| good
2026-06-14T11:00:00.000Z	52 \| moderate	9.917 \| good	43.999 \| good	11.835 \| good	0.558 \| good	3.316 \| good	0.095 \| good
2026-06-14T12:00:00.000Z	49 \| good	8.682 \| good	37.99 \| good	16.068 \| good	0.551 \| good	3.492 \| good	0.096 \| good
2026-06-14T13:00:00.000Z	44 \| good	8.235 \| good	35.894 \| good	13.385 \| good	0.551 \| good	3.816 \| good	0.097 \| good
2026-06-14T14:00:00.000Z	49 \| good	8.636 \| good	37.961 \| good	18.812 \| good	0.552 \| good	3.181 \| good	0.096 \| good
2026-06-14T15:00:00.000Z	54 \| moderate	11.021 \| good	49.09 \| good	21.584 \| good	0.552 \| good	2.352 \| good	0.093 \| good
2026-06-14T16:00:00.000Z	54 \| moderate	10.894 \| good	48.292 \| good	25.885 \| good	0.547 \| good	1.913 \| good	0.093 \| good
2026-06-14T17:00:00.000Z	54 \| moderate	10.522 \| good	46.772 \| good	32.9 \| good	0.54 \| good	1.551 \| good	0.093 \| good
2026-06-14T18:00:00.000Z	52 \| moderate	10.064 \| good	44.836 \| good	37.552 \| good	0.531 \| good	1.244 \| good	0.093 \| good
2026-06-14T19:00:00.000Z	52 \| moderate	9.661 \| good	42.905 \| good	42.107 \| good	0.52 \| good	1.013 \| good	0.092 \| good
2026-06-14T20:00:00.000Z	49 \| good	8.589 \| good	38.202 \| good	43.085 \| good	0.516 \| good	0.838 \| good	0.092 \| good
2026-06-14T21:00:00.000Z	49 \| good	8.621 \| good	38.335 \| good	42.071 \| good	0.503 \| good	0.743 \| good	0.092 \| good
2026-06-14T22:00:00.000Z	38 \| good	7.037 \| good	31.106 \| good	38.024 \| good	0.491 \| good	0.709 \| good	0.092 \| good
2026-06-14T23:00:00.000Z	38 \| good	6.915 \| good	30.67 \| good	32.972 \| good	0.486 \| good	0.736 \| good	0.091 \| good

Los Altos

Empower business decisions with accurate air quality data

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

0.21ppm

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

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Frequently asked questions

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

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

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

The worst air quality in Los Altos, California was recorded at 11:00:00 on 2026-06-11.

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

The best air quality in Los Altos, California was recorded at 04:00:00 on 2026-06-12.

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

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

Which pollutant is found most often in Los Altos, California?

The most common pollutant in Los Altos, California is PM2.5.

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

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

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

The measured PM_2.5 levels in Los Altos, California at present are 8.899 μg/m³.

What are the current PM₁₀ levels at Los Altos, California?

The current PM₁₀ levels in Los Altos, California are 40.949 μg/m³.

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

The current carbon monoxide (CO) level in Los Altos, California is 0.248 ppm.

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

The current sulfur dioxide (SO₂) levels in Los Altos, California are 0.43 ppb.

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

The current ozone (O₃) levels at Los Altos, California is 45.823 ppm.

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

The current nitrogen dioxide (NO₂) levels at Los Altos, California is 5.079 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-06-11T03:00:00.000Z	44 \| good	8.098 \| good	35.86 \| good	31.512 \| good	0.53 \| good	6.665 \| good	0.214 \| good
2026-06-11T04:00:00.000Z	54 \| moderate	10.982 \| good	48.273 \| good	26.746 \| good	0.487 \| good	8.133 \| good	0.204 \| good
2026-06-11T05:00:00.000Z	56 \| moderate	12.187 \| fine	55.071 \| fine	26.606 \| good	0.409 \| good	14.46 \| good	0.296 \| good
2026-06-11T06:00:00.000Z	56 \| moderate	12.072 \| good	54.77 \| good	20.241 \| good	0.63 \| good	14.903 \| good	0.305 \| good
2026-06-11T07:00:00.000Z	56 \| moderate	12.134 \| fine	53.374 \| good	18.386 \| good	0.529 \| good	14.491 \| good	0.313 \| good
2026-06-11T08:00:00.000Z	62 \| moderate	14.58 \| fine	63.892 \| fine	16.204 \| good	0.681 \| good	21.791 \| good	0.401 \| good
2026-06-11T09:00:00.000Z	60 \| moderate	14.486 \| fine	64.314 \| fine	13.269 \| good	0.506 \| good	23.004 \| good	0.401 \| good
2026-06-11T10:00:00.000Z	64 \| moderate	15.61 \| fine	67.164 \| fine	10.205 \| good	0.753 \| good	21.416 \| good	0.398 \| good
2026-06-11T11:00:00.000Z	58 \| moderate	13.384 \| fine	58.717 \| fine	9.851 \| good	0.438 \| good	10.129 \| good	0.311 \| good
2026-06-11T12:00:00.000Z	56 \| moderate	11.526 \| good	50.584 \| good	13.025 \| good	0.415 \| good	10.141 \| good	0.311 \| good
2026-06-11T13:00:00.000Z	56 \| moderate	11.928 \| good	52.17 \| good	12.829 \| good	0.555 \| good	10.357 \| good	0.32 \| good
2026-06-11T14:00:00.000Z	44 \| good	8.455 \| good	36.909 \| good	10.014 \| good	0.405 \| good	12.561 \| good	0.407 \| good
2026-06-11T15:00:00.000Z	49 \| good	8.626 \| good	37.189 \| good	15.582 \| good	0.531 \| good	10.688 \| good	0.438 \| good
2026-06-11T16:00:00.000Z	49 \| good	9.338 \| good	41.13 \| good	16.076 \| good	0.482 \| good	11.752 \| good	0.43 \| good
2026-06-11T17:00:00.000Z	58 \| moderate	12.717 \| fine	56.12 \| fine	20.028 \| good	0.705 \| good	16.606 \| good	0.512 \| good
2026-06-11T18:00:00.000Z	49 \| good	8.907 \| good	37.948 \| good	41.184 \| good	0.813 \| good	6.106 \| good	0.228 \| good
2026-06-11T19:00:00.000Z	39 \| good	6.519 \| good	29.143 \| good	42.006 \| good	0.638 \| good	4.579 \| good	0.212 \| good
2026-06-11T20:00:00.000Z	48 \| good	5.27 \| good	23.359 \| good	52.001 \| good	0.567 \| good	3.363 \| good	0.127 \| good
2026-06-11T21:00:00.000Z	49 \| good	3.8 \| good	17.23 \| good	52.762 \| good	0.615 \| good	2.954 \| good	0.122 \| good
2026-06-11T22:00:00.000Z	51 \| moderate	3.955 \| good	18.423 \| good	55.291 \| fine	0.571 \| good	3.325 \| good	0.209 \| good
2026-06-11T23:00:00.000Z	58 \| moderate	7.029 \| good	31.336 \| good	57.465 \| fine	0.512 \| good	6.412 \| good	0.209 \| good
2026-06-12T00:00:00.000Z	54 \| moderate	11.06 \| good	49.628 \| good	52.847 \| good	0.461 \| good	8.676 \| good	0.296 \| good
2026-06-12T01:00:00.000Z	58 \| moderate	12.747 \| fine	57.104 \| fine	39.961 \| good	0.71 \| good	6.21 \| good	0.209 \| good
2026-06-12T02:00:00.000Z	62 \| moderate	14.634 \| fine	65.129 \| fine	37.005 \| good	0.608 \| good	6.161 \| good	0.212 \| good
2026-06-12T03:00:00.000Z	60 \| moderate	14.119 \| fine	62.545 \| fine	34.853 \| good	0.46 \| good	4.484 \| good	0.212 \| good
2026-06-12T04:00:00.000Z	62 \| moderate	15.13 \| fine	66.815 \| fine	34.226 \| good	0.498 \| good	5.794 \| good	0.212 \| good
2026-06-12T05:00:00.000Z	66 \| moderate	16.593 \| fine	72.78 \| fine	29.975 \| good	0.661 \| good	7.239 \| good	0.221 \| good
2026-06-12T06:00:00.000Z	62 \| moderate	15.013 \| fine	66.089 \| fine	29.639 \| good	0.623 \| good	4.785 \| good	0.226 \| good
2026-06-12T07:00:00.000Z	62 \| moderate	14.522 \| fine	63.642 \| fine	28.247 \| good	0.619 \| good	4.402 \| good	0.209 \| good
2026-06-12T08:00:00.000Z	49 \| good	9.1 \| good	40.297 \| good	27.059 \| good	0.43 \| good	4.115 \| good	0.209 \| good
2026-06-12T09:00:00.000Z	38 \| good	6.997 \| good	30.443 \| good	27.195 \| good	0.54 \| good	3.416 \| good	0.209 \| good
2026-06-12T10:00:00.000Z	27 \| good	5.173 \| good	22.393 \| good	25.927 \| good	0.357 \| good	3.504 \| good	0.206 \| good
2026-06-12T11:00:00.000Z	27 \| good	4.674 \| good	21.936 \| good	23.965 \| good	0.531 \| good	3.736 \| good	0.206 \| good
2026-06-12T12:00:00.000Z	22 \| good	4.291 \| good	19.329 \| good	23.965 \| good	0.581 \| good	3.751 \| good	0.209 \| good
2026-06-12T13:00:00.000Z	22 \| good	4.416 \| good	19.363 \| good	23.716 \| good	0.603 \| good	3.985 \| good	0.222 \| good
2026-06-12T14:00:00.000Z	22 \| good	3.765 \| good	16.612 \| good	24.065 \| good	0.489 \| good	4.806 \| good	0.212 \| good
2026-06-12T15:00:00.000Z	22 \| good	3.191 \| good	14.52 \| good	23.93 \| good	0.587 \| good	6.706 \| good	0.297 \| good
2026-06-12T16:00:00.000Z	21 \| good	3.108 \| good	13.444 \| good	23.195 \| good	0.525 \| good	7.292 \| good	0.311 \| good
2026-06-12T17:00:00.000Z	22 \| good	3.521 \| good	15.966 \| good	23.075 \| good	0.596 \| good	6.579 \| good	0.309 \| good
2026-06-12T18:00:00.000Z	27 \| good	4.677 \| good	23.287 \| good	25.041 \| good	0.485 \| good	7.186 \| good	0.309 \| good
2026-06-12T19:00:00.000Z	27 \| good	4.632 \| good	21.162 \| good	27.142 \| good	0.486 \| good	7.139 \| good	0.309 \| good
2026-06-12T20:00:00.000Z	38 \| good	6.618 \| good	30.348 \| good	33.337 \| good	0.9 \| good	7.728 \| good	0.3 \| good
2026-06-12T21:00:00.000Z	44 \| good	7.779 \| good	34.65 \| good	38.334 \| good	0.854 \| good	5.776 \| good	0.306 \| good
2026-06-12T22:00:00.000Z	44 \| good	7.535 \| good	33.931 \| good	38.551 \| good	0.411 \| good	4.185 \| good	0.219 \| good
2026-06-12T23:00:00.000Z	33 \| good	5.519 \| good	23.307 \| good	35.313 \| good	0.453 \| good	4.411 \| good	0.212 \| good
2026-06-13T00:00:00.000Z	30 \| good	3.594 \| good	15.703 \| good	32.499 \| good	0.473 \| good	3.864 \| good	0.212 \| good
2026-06-13T01:00:00.000Z	30 \| good	3.929 \| good	17.792 \| good	32.061 \| good	0.459 \| good	3.386 \| good	0.212 \| good
2026-06-13T02:00:00.000Z	30 \| good	3.939 \| good	17.952 \| good	31.524 \| good	0.444 \| good	5.419 \| good	0.218 \| good
2026-06-13T02:00:00.000Z	36 \| good	4.516 \| good	20.848 \| good	38.889 \| good	0.464 \| good	5.57 \| good	0.246 \| good
2026-06-13T00:00:00.000Z	38 \| good	6.745 \| good	29.957 \| good	39.426 \| good	0.577 \| good	1.404 \| good	0.115 \| good
2026-06-13T01:00:00.000Z	44 \| good	7.816 \| good	34.375 \| good	38.181 \| good	0.579 \| good	1.598 \| good	0.114 \| good
2026-06-13T02:00:00.000Z	49 \| good	9.317 \| good	41.692 \| good	33.647 \| good	0.593 \| good	2.021 \| good	0.114 \| good
2026-06-13T03:00:00.000Z	49 \| good	9.165 \| good	40.683 \| good	29.645 \| good	0.613 \| good	2.712 \| good	0.114 \| good
2026-06-13T04:00:00.000Z	49 \| good	9.038 \| good	39.892 \| good	25.022 \| good	0.637 \| good	3.396 \| good	0.116 \| good
2026-06-13T05:00:00.000Z	52 \| moderate	9.646 \| good	42.862 \| good	19.872 \| good	0.665 \| good	3.59 \| good	0.116 \| good
2026-06-13T06:00:00.000Z	56 \| moderate	11.638 \| good	51.729 \| good	18.725 \| good	0.679 \| good	3.808 \| good	0.117 \| good
2026-06-13T07:00:00.000Z	54 \| moderate	11.163 \| good	49.353 \| good	19.069 \| good	0.688 \| good	3.917 \| good	0.118 \| good
2026-06-13T08:00:00.000Z	56 \| moderate	11.599 \| good	51.981 \| good	19.276 \| good	0.685 \| good	3.901 \| good	0.118 \| good
2026-06-13T09:00:00.000Z	54 \| moderate	11.143 \| good	49.656 \| good	17.449 \| good	0.679 \| good	3.625 \| good	0.117 \| good
2026-06-13T10:00:00.000Z	54 \| moderate	10.653 \| good	46.926 \| good	16.986 \| good	0.671 \| good	3.503 \| good	0.115 \| good
2026-06-13T11:00:00.000Z	52 \| moderate	9.878 \| good	43.735 \| good	15.154 \| good	0.662 \| good	3.317 \| good	0.114 \| good
2026-06-13T12:00:00.000Z	52 \| moderate	10.241 \| good	45.38 \| good	16.557 \| good	0.647 \| good	3.359 \| good	0.114 \| good
2026-06-13T13:00:00.000Z	52 \| moderate	9.863 \| good	43.76 \| good	13.998 \| good	0.622 \| good	3.424 \| good	0.114 \| good
2026-06-13T14:00:00.000Z	54 \| moderate	10.864 \| good	48.036 \| good	18.963 \| good	0.618 \| good	2.989 \| good	0.113 \| good
2026-06-13T15:00:00.000Z	58 \| moderate	13.016 \| fine	58.447 \| fine	22.379 \| good	0.629 \| good	2.553 \| good	0.11 \| good
2026-06-13T16:00:00.000Z	60 \| moderate	13.54 \| fine	60.435 \| fine	27.373 \| good	0.627 \| good	2.149 \| good	0.108 \| good
2026-06-13T17:00:00.000Z	56 \| moderate	12.079 \| good	53.855 \| good	36.614 \| good	0.632 \| good	1.857 \| good	0.107 \| good
2026-06-13T18:00:00.000Z	54 \| moderate	10.522 \| good	46.55 \| good	42.47 \| good	0.638 \| good	1.527 \| good	0.105 \| good
2026-06-13T19:00:00.000Z	52 \| moderate	9.75 \| good	43.402 \| good	46.336 \| good	0.644 \| good	1.244 \| good	0.103 \| good
2026-06-13T20:00:00.000Z	52 \| moderate	9.501 \| good	42.38 \| good	46.66 \| good	0.638 \| good	0.984 \| good	0.101 \| good
2026-06-13T21:00:00.000Z	49 \| good	8.674 \| good	38.158 \| good	47.127 \| good	0.627 \| good	0.865 \| good	0.099 \| good
2026-06-13T22:00:00.000Z	44 \| good	8.317 \| good	36.588 \| good	44.655 \| good	0.625 \| good	0.845 \| good	0.097 \| good
2026-06-13T23:00:00.000Z	44 \| good	8.422 \| good	36.941 \| good	40.052 \| good	0.612 \| good	0.885 \| good	0.096 \| good
2026-06-14T00:00:00.000Z	44 \| good	8.168 \| good	35.559 \| good	37.847 \| good	0.597 \| good	1.007 \| good	0.094 \| good
2026-06-14T01:00:00.000Z	49 \| good	8.91 \| good	39.385 \| good	37.394 \| good	0.583 \| good	1.21 \| good	0.093 \| good
2026-06-14T02:00:00.000Z	49 \| good	9.405 \| good	41.908 \| good	33.896 \| good	0.569 \| good	1.62 \| good	0.093 \| good
2026-06-14T03:00:00.000Z	49 \| good	9.333 \| good	41.559 \| good	29.509 \| good	0.567 \| good	2.181 \| good	0.093 \| good
2026-06-14T04:00:00.000Z	49 \| good	9.287 \| good	41.416 \| good	24.525 \| good	0.576 \| good	2.667 \| good	0.093 \| good
2026-06-14T05:00:00.000Z	52 \| moderate	9.727 \| good	43.313 \| good	20.681 \| good	0.593 \| good	2.92 \| good	0.094 \| good
2026-06-14T06:00:00.000Z	52 \| moderate	10.481 \| good	46.338 \| good	17.543 \| good	0.606 \| good	3.198 \| good	0.095 \| good
2026-06-14T07:00:00.000Z	52 \| moderate	10.231 \| good	45.206 \| good	17.361 \| good	0.61 \| good	3.265 \| good	0.095 \| good
2026-06-14T08:00:00.000Z	52 \| moderate	10.347 \| good	45.686 \| good	15.918 \| good	0.602 \| good	3.111 \| good	0.095 \| good
2026-06-14T09:00:00.000Z	52 \| moderate	9.875 \| good	43.963 \| good	13.306 \| good	0.59 \| good	3.139 \| good	0.095 \| good
2026-06-14T10:00:00.000Z	52 \| moderate	10.116 \| good	45.019 \| good	12.176 \| good	0.578 \| good	3.157 \| good	0.095 \| good
2026-06-14T11:00:00.000Z	52 \| moderate	9.917 \| good	43.999 \| good	11.835 \| good	0.558 \| good	3.316 \| good	0.095 \| good
2026-06-14T12:00:00.000Z	49 \| good	8.682 \| good	37.99 \| good	16.068 \| good	0.551 \| good	3.492 \| good	0.096 \| good
2026-06-14T13:00:00.000Z	44 \| good	8.235 \| good	35.894 \| good	13.385 \| good	0.551 \| good	3.816 \| good	0.097 \| good
2026-06-14T14:00:00.000Z	49 \| good	8.636 \| good	37.961 \| good	18.812 \| good	0.552 \| good	3.181 \| good	0.096 \| good
2026-06-14T15:00:00.000Z	54 \| moderate	11.021 \| good	49.09 \| good	21.584 \| good	0.552 \| good	2.352 \| good	0.093 \| good
2026-06-14T16:00:00.000Z	54 \| moderate	10.894 \| good	48.292 \| good	25.885 \| good	0.547 \| good	1.913 \| good	0.093 \| good
2026-06-14T17:00:00.000Z	54 \| moderate	10.522 \| good	46.772 \| good	32.9 \| good	0.54 \| good	1.551 \| good	0.093 \| good
2026-06-14T18:00:00.000Z	52 \| moderate	10.064 \| good	44.836 \| good	37.552 \| good	0.531 \| good	1.244 \| good	0.093 \| good
2026-06-14T19:00:00.000Z	52 \| moderate	9.661 \| good	42.905 \| good	42.107 \| good	0.52 \| good	1.013 \| good	0.092 \| good
2026-06-14T20:00:00.000Z	49 \| good	8.589 \| good	38.202 \| good	43.085 \| good	0.516 \| good	0.838 \| good	0.092 \| good
2026-06-14T21:00:00.000Z	49 \| good	8.621 \| good	38.335 \| good	42.071 \| good	0.503 \| good	0.743 \| good	0.092 \| good
2026-06-14T22:00:00.000Z	38 \| good	7.037 \| good	31.106 \| good	38.024 \| good	0.491 \| good	0.709 \| good	0.092 \| good
2026-06-14T23:00:00.000Z	38 \| good	6.915 \| good	30.67 \| good	32.972 \| good	0.486 \| good	0.736 \| good	0.091 \| good

Real-time air quality index in Los Altos, California today

Common air pollutants in Los Altos, California

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Los Altos, California air quality forecast and history

Empower business decisions with accurate air quality data

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

Air quality in nearby cities

Mountain View City, California

Stanford, California

Palo Alto, California

Sunnyvale, California

East Palo Alto, California

Menlo Park, 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 Los Altos, California updated?

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

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

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

Which pollutant is found most often in Los Altos, California?

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

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

What are the current PM10 levels at Los Altos, California?

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

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

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

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

What are the current PM₁₀ levels at Los Altos, California?

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

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

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