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

The current PM10 levels in Los Altos, California are 69.07 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 0.604 ppb.

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

The current ozone (O3) levels at Los Altos, California is 15.8 ppm.

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

The current nitrogen dioxide (NO2) levels at Los Altos, California is 15.324 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 15.839 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)

Moderate

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)

19.62 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

80.14 μg/m³

155

255

425

605+

Ozone (O₃)

12.01 ppb

201

201+

Sulfur Dioxide (SO₂)

0.54 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

19.36 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.80 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
2026-01-22T06:00:00.000Z	62 \| moderate	15.296 \| fine	37.387 \| good	4.323 \| good	0.829 \| good	22.798 \| good	0.819 \| good
2026-01-22T07:00:00.000Z	60 \| moderate	14.399 \| fine	51.402 \| good	5.441 \| good	0.862 \| good	22.188 \| good	0.887 \| good
2026-01-22T08:00:00.000Z	67 \| moderate	17.531 \| fine	74.653 \| fine	2.2 \| good	0.954 \| good	20.703 \| good	0.876 \| good
2026-01-22T09:00:00.000Z	60 \| moderate	13.584 \| fine	53.31 \| good	5.529 \| good	0.861 \| good	19.844 \| good	0.843 \| good
2026-01-22T10:00:00.000Z	58 \| moderate	13.193 \| fine	49.245 \| good	2.849 \| good	0.859 \| good	18.665 \| good	0.859 \| good
2026-01-22T11:00:00.000Z	56 \| moderate	12.053 \| good	47.456 \| good	4.285 \| good	0.828 \| good	16.862 \| good	0.791 \| good
2026-01-22T12:00:00.000Z	54 \| moderate	11.423 \| good	33.237 \| good	3.327 \| good	0.817 \| good	16.166 \| good	0.757 \| good
2026-01-22T13:00:00.000Z	56 \| moderate	12.012 \| good	51.879 \| good	2.686 \| good	0.805 \| good	15.908 \| good	0.692 \| good
2026-01-22T14:00:00.000Z	58 \| moderate	12.566 \| fine	35.387 \| good	4.849 \| good	0.778 \| good	15.361 \| good	0.764 \| good
2026-01-22T15:00:00.000Z	56 \| moderate	11.558 \| good	48.549 \| good	5.41 \| good	0.801 \| good	16.083 \| good	0.89 \| good
2026-01-22T16:00:00.000Z	66 \| moderate	16.668 \| fine	54.071 \| good	4.675 \| good	0.771 \| good	17.549 \| good	1.096 \| good
2026-01-22T17:00:00.000Z	60 \| moderate	14.435 \| fine	46.796 \| good	2.15 \| good	0.819 \| good	18.069 \| good	1.106 \| good
2026-01-22T18:00:00.000Z	58 \| moderate	12.598 \| fine	25.224 \| good	2.13 \| good	0.95 \| good	15.134 \| good	1.1 \| good
2026-01-22T19:00:00.000Z	67 \| moderate	16.844 \| fine	87.881 \| fine	3.882 \| good	0.923 \| good	15.954 \| good	0.904 \| good
2026-01-22T20:00:00.000Z	64 \| moderate	16.017 \| fine	66.661 \| fine	11.018 \| good	1.081 \| good	18.082 \| good	0.813 \| good
2026-01-22T21:00:00.000Z	62 \| moderate	14.653 \| fine	55.438 \| fine	10.874 \| good	0.992 \| good	13.939 \| good	0.497 \| good
2026-01-22T22:00:00.000Z	62 \| moderate	14.988 \| fine	63.383 \| fine	11.685 \| good	0.81 \| good	13.381 \| good	0.394 \| good
2026-01-22T23:00:00.000Z	60 \| moderate	14.377 \| fine	59.596 \| fine	15.943 \| good	0.994 \| good	14.755 \| good	0.411 \| good
2026-01-23T00:00:00.000Z	49 \| good	9.329 \| good	46.948 \| good	17.912 \| good	0.921 \| good	13.419 \| good	0.438 \| good
2026-01-23T01:00:00.000Z	52 \| moderate	10.459 \| good	41.21 \| good	19.761 \| good	0.839 \| good	12.79 \| good	0.387 \| good
2026-01-23T02:00:00.000Z	60 \| moderate	14.213 \| fine	24.231 \| good	13.54 \| good	1.475 \| good	10.363 \| good	0.452 \| good
2026-01-23T03:00:00.000Z	58 \| moderate	12.647 \| fine	56.723 \| fine	14.645 \| good	0.898 \| good	19.825 \| good	0.485 \| good
2026-01-23T04:00:00.000Z	60 \| moderate	14.321 \| fine	52.423 \| good	7.794 \| good	0.703 \| good	23.422 \| good	0.531 \| good
2026-01-23T05:00:00.000Z	64 \| moderate	16.464 \| fine	46.32 \| good	7.335 \| good	0.6 \| good	27.572 \| good	0.702 \| good
2026-01-23T06:00:00.000Z	69 \| moderate	19.273 \| fine	56.456 \| fine	3.281 \| good	0.488 \| good	16.992 \| good	0.584 \| good
2026-01-23T07:00:00.000Z	79 \| moderate	23.7 \| fine	68.143 \| fine	5.31 \| good	0.434 \| good	18.365 \| good	0.632 \| good
2026-01-23T08:00:00.000Z	82 \| moderate	25.809 \| fine	54.575 \| good	4.33 \| good	0.455 \| good	21.19 \| good	0.657 \| good
2026-01-23T09:00:00.000Z	73 \| moderate	21.013 \| fine	68.245 \| fine	12.023 \| good	0.495 \| good	20.153 \| good	0.709 \| good
2026-01-23T10:00:00.000Z	73 \| moderate	21.359 \| fine	67.844 \| fine	5.695 \| good	0.555 \| good	18.116 \| good	0.68 \| good
2026-01-23T11:00:00.000Z	79 \| moderate	24.342 \| fine	56.897 \| fine	7.003 \| good	0.525 \| good	17.398 \| good	0.698 \| good
2026-01-23T12:00:00.000Z	66 \| moderate	16.513 \| fine	78.496 \| fine	4.545 \| good	0.388 \| good	17.216 \| good	0.669 \| good
2026-01-23T13:00:00.000Z	58 \| moderate	12.563 \| fine	60.817 \| fine	7.092 \| good	0.914 \| good	15.312 \| good	0.482 \| good
2026-01-23T14:00:00.000Z	54 \| moderate	11.158 \| good	54.563 \| good	6.442 \| good	0.844 \| good	16.042 \| good	0.456 \| good
2026-01-23T15:00:00.000Z	56 \| moderate	11.952 \| good	42.468 \| good	6.774 \| good	0.852 \| good	12.744 \| good	0.404 \| good
2026-01-23T16:00:00.000Z	49 \| good	9.48 \| good	40.746 \| good	2.266 \| good	0.741 \| good	12.008 \| good	0.432 \| good
2026-01-23T17:00:00.000Z	44 \| good	8.415 \| good	46.802 \| good	7.259 \| good	0.596 \| good	11.639 \| good	0.451 \| good
2026-01-23T18:00:00.000Z	56 \| moderate	11.529 \| good	22.282 \| good	11.763 \| good	0.64 \| good	11.081 \| good	0.428 \| good
2026-01-23T19:00:00.000Z	38 \| good	7.276 \| good	20.229 \| good	12.104 \| good	0.801 \| good	9.229 \| good	0.411 \| good
2026-01-23T20:00:00.000Z	52 \| moderate	9.651 \| good	29.478 \| good	15.083 \| good	0.952 \| good	9.638 \| good	0.399 \| good
2026-01-23T21:00:00.000Z	54 \| moderate	11.042 \| good	49.588 \| good	13.735 \| good	0.882 \| good	9.234 \| good	0.394 \| good
2026-01-23T22:00:00.000Z	56 \| moderate	11.738 \| good	51.288 \| good	16.301 \| good	0.775 \| good	9.893 \| good	0.423 \| good
2026-01-23T23:00:00.000Z	58 \| moderate	13.37 \| fine	47.165 \| good	15.863 \| good	0.873 \| good	10.266 \| good	0.412 \| good
2026-01-24T00:00:00.000Z	58 \| moderate	12.553 \| fine	43.557 \| good	15.184 \| good	0.9 \| good	11.005 \| good	0.429 \| good
2026-01-24T01:00:00.000Z	64 \| moderate	16.109 \| fine	66.578 \| fine	11.98 \| good	0.723 \| good	12.836 \| good	0.418 \| good
2026-01-24T02:00:00.000Z	66 \| moderate	17.445 \| fine	69.453 \| fine	12.209 \| good	0.599 \| good	15.367 \| good	0.506 \| good
2026-01-24T03:00:00.000Z	58 \| moderate	12.611 \| fine	53.996 \| good	17.632 \| good	0.566 \| good	13.394 \| good	0.631 \| good
2026-01-24T04:00:00.000Z	60 \| moderate	13.524 \| fine	46.276 \| good	12.454 \| good	0.533 \| good	17.277 \| good	0.67 \| good
2026-01-24T05:00:00.000Z	71 \| moderate	19.616 \| fine	80.137 \| fine	12.011 \| good	0.543 \| good	19.364 \| good	0.799 \| good
2026-01-24T04:00:00.000Z	71 \| moderate	19.609 \| fine	86.236 \| fine	16.831 \| good	2.744 \| good	22.988 \| good	0.336 \| good
2026-01-24T05:00:00.000Z	69 \| moderate	19.09 \| fine	84.208 \| fine	18.671 \| good	2.937 \| good	24.04 \| good	0.354 \| good
2026-01-24T06:00:00.000Z	71 \| moderate	19.571 \| fine	86.564 \| fine	15.201 \| good	3.13 \| good	25.093 \| good	0.371 \| good
2026-01-24T07:00:00.000Z	67 \| moderate	18.221 \| fine	81.146 \| fine	13.985 \| good	3.015 \| good	24.489 \| good	0.368 \| good
2026-01-24T08:00:00.000Z	60 \| moderate	13.865 \| fine	61.772 \| fine	15.346 \| good	2.9 \| good	23.886 \| good	0.366 \| good
2026-01-24T09:00:00.000Z	54 \| moderate	11.303 \| good	50.284 \| good	12.286 \| good	2.784 \| good	23.283 \| good	0.363 \| good
2026-01-24T10:00:00.000Z	38 \| good	7.25 \| good	32.096 \| good	10.77 \| good	2.714 \| good	22.549 \| good	0.354 \| good
2026-01-24T11:00:00.000Z	44 \| good	7.86 \| good	35.031 \| good	9.868 \| good	2.645 \| good	21.815 \| good	0.344 \| good
2026-01-24T12:00:00.000Z	38 \| good	7.171 \| good	31.214 \| good	8.219 \| good	2.575 \| good	21.081 \| good	0.335 \| good
2026-01-24T13:00:00.000Z	33 \| good	5.819 \| good	25.525 \| good	8.048 \| good	2.623 \| good	21.143 \| good	0.321 \| good
2026-01-24T14:00:00.000Z	33 \| good	6.226 \| good	27.219 \| good	7.612 \| good	2.671 \| good	21.204 \| good	0.308 \| good
2026-01-24T15:00:00.000Z	49 \| good	9.187 \| good	40.485 \| good	8.798 \| good	2.72 \| good	21.265 \| good	0.294 \| good
2026-01-24T16:00:00.000Z	49 \| good	8.678 \| good	38.398 \| good	10.981 \| good	2.435 \| good	18.327 \| good	0.276 \| good
2026-01-24T17:00:00.000Z	44 \| good	7.522 \| good	33.07 \| good	21.16 \| good	2.15 \| good	15.39 \| good	0.258 \| good
2026-01-24T18:00:00.000Z	24 \| good	3.394 \| good	14.649 \| good	26.458 \| good	1.866 \| good	12.452 \| good	0.239 \| good
2026-01-24T19:00:00.000Z	24 \| good	3.717 \| good	16.351 \| good	26.396 \| good	1.603 \| good	9.942 \| good	0.211 \| good
2026-01-24T20:00:00.000Z	27 \| good	3.34 \| good	14.879 \| good	28.699 \| good	1.341 \| good	7.433 \| good	0.182 \| good
2026-01-24T21:00:00.000Z	27 \| good	4.501 \| good	19.485 \| good	28.453 \| good	1.079 \| good	4.924 \| good	0.153 \| good
2026-01-24T22:00:00.000Z	29 \| good	2.047 \| good	8.567 \| good	30.936 \| good	1.052 \| good	5.265 \| good	0.151 \| good
2026-01-24T23:00:00.000Z	28 \| good	0.797 \| good	3.121 \| good	30.256 \| good	1.025 \| good	5.606 \| good	0.15 \| good
2026-01-25T00:00:00.000Z	28 \| good	1.308 \| good	5.164 \| good	30.407 \| good	0.998 \| good	5.947 \| good	0.148 \| good
2026-01-25T01:00:00.000Z	19 \| good	1.377 \| good	5.543 \| good	20.458 \| good	1.116 \| good	12.184 \| good	0.184 \| good
2026-01-25T02:00:00.000Z	27 \| good	4.623 \| good	20.159 \| good	13.134 \| good	1.234 \| good	18.42 \| good	0.219 \| good
2026-01-25T03:00:00.000Z	33 \| good	5.518 \| good	24.064 \| good	10.097 \| good	1.352 \| good	24.657 \| good	0.255 \| good
2026-01-25T04:00:00.000Z	25 \| good	4.447 \| good	19.555 \| good	10.144 \| good	1.414 \| good	25.7 \| good	0.272 \| good
2026-01-25T05:00:00.000Z	25 \| good	3.561 \| good	14.88 \| good	13.131 \| good	1.477 \| good	26.743 \| good	0.289 \| good
2026-01-25T06:00:00.000Z	26 \| good	2.532 \| good	10.484 \| good	14.927 \| good	1.539 \| good	27.785 \| good	0.306 \| good
2026-01-25T07:00:00.000Z	25 \| good	2.782 \| good	11.745 \| good	11.188 \| good	1.386 \| good	26.94 \| good	0.306 \| good
2026-01-25T08:00:00.000Z	25 \| good	3.201 \| good	13.369 \| good	9.044 \| good	1.232 \| good	26.094 \| good	0.306 \| good
2026-01-25T09:00:00.000Z	24 \| good	4.296 \| good	18.688 \| good	6.5 \| good	1.079 \| good	25.248 \| good	0.305 \| good
2026-01-25T10:00:00.000Z	23 \| good	2.738 \| good	11.319 \| good	4.522 \| good	0.981 \| good	23.988 \| good	0.292 \| good
2026-01-25T11:00:00.000Z	22 \| good	3.111 \| good	13.039 \| good	5.034 \| good	0.884 \| good	22.728 \| good	0.279 \| good
2026-01-25T12:00:00.000Z	20 \| good	2.956 \| good	12.721 \| good	3.616 \| good	0.786 \| good	21.468 \| good	0.266 \| good
2026-01-25T13:00:00.000Z	20 \| good	2.712 \| good	11.512 \| good	4.209 \| good	0.852 \| good	21.157 \| good	0.256 \| good
2026-01-25T14:00:00.000Z	20 \| good	1.471 \| good	5.954 \| good	5.283 \| good	0.918 \| good	20.847 \| good	0.246 \| good
2026-01-25T15:00:00.000Z	20 \| good	2.472 \| good	10.224 \| good	6.223 \| good	0.984 \| good	20.536 \| good	0.236 \| good
2026-01-25T16:00:00.000Z	22 \| good	3.867 \| good	16.764 \| good	6.801 \| good	1.055 \| good	18.545 \| good	0.244 \| good
2026-01-25T17:00:00.000Z	52 \| moderate	10.182 \| good	45.32 \| good	12.156 \| good	1.126 \| good	16.554 \| good	0.251 \| good
2026-01-25T18:00:00.000Z	44 \| good	7.968 \| good	35.067 \| good	18.454 \| good	1.197 \| good	14.563 \| good	0.259 \| good
2026-01-25T19:00:00.000Z	44 \| good	7.667 \| good	33.633 \| good	23.203 \| good	1.269 \| good	12.55 \| good	0.241 \| good
2026-01-25T20:00:00.000Z	44 \| good	7.671 \| good	33.965 \| good	26.856 \| good	1.341 \| good	10.538 \| good	0.222 \| good
2026-01-25T21:00:00.000Z	33 \| good	5.693 \| good	24.893 \| good	27.997 \| good	1.412 \| good	8.525 \| good	0.204 \| good
2026-01-25T22:00:00.000Z	30 \| good	3.706 \| good	15.7 \| good	31.921 \| good	1.43 \| good	9.542 \| good	0.209 \| good
2026-01-25T23:00:00.000Z	33 \| good	5.532 \| good	24.076 \| good	32.02 \| good	1.449 \| good	10.558 \| good	0.215 \| good
2026-01-26T00:00:00.000Z	58 \| moderate	12.989 \| fine	16.17 \| good	21.442 \| good	1.491 \| good	11.831 \| good	0.221 \| good
2026-01-26T01:00:00.000Z	52 \| moderate	10.14 \| good	44.721 \| good	19.478 \| good	1.541 \| good	15.319 \| good	0.271 \| good
2026-01-26T02:00:00.000Z	60 \| moderate	14.272 \| fine	64.108 \| fine	10.299 \| good	1.615 \| good	19.064 \| good	0.321 \| good
2026-01-26T03:00:00.000Z	60 \| moderate	14.472 \| fine	64.722 \| fine	8.757 \| good	1.69 \| good	22.809 \| good	0.371 \| good

Los Altos

Empower business decisions with accurate air quality data

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

0.58ppm

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 02:00:00 on 2026-01-24.

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 06:00:00 on 2026-01-23.

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

The real-time air quality index in Los Altos, California is 64, currently categorized as Moderate.

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 15.839 μg/m³.

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

The current PM₁₀ levels in Los Altos, California are 69.07 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 0.544 ppm.

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

The current sulfur dioxide (SO₂) levels in Los Altos, California are 0.604 ppb.

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

The current ozone (O₃) levels at Los Altos, California is 15.8 ppm.

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

The current nitrogen dioxide (NO₂) levels at Los Altos, California is 15.324 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-01-22T06:00:00.000Z	62 \| moderate	15.296 \| fine	37.387 \| good	4.323 \| good	0.829 \| good	22.798 \| good	0.819 \| good
2026-01-22T07:00:00.000Z	60 \| moderate	14.399 \| fine	51.402 \| good	5.441 \| good	0.862 \| good	22.188 \| good	0.887 \| good
2026-01-22T08:00:00.000Z	67 \| moderate	17.531 \| fine	74.653 \| fine	2.2 \| good	0.954 \| good	20.703 \| good	0.876 \| good
2026-01-22T09:00:00.000Z	60 \| moderate	13.584 \| fine	53.31 \| good	5.529 \| good	0.861 \| good	19.844 \| good	0.843 \| good
2026-01-22T10:00:00.000Z	58 \| moderate	13.193 \| fine	49.245 \| good	2.849 \| good	0.859 \| good	18.665 \| good	0.859 \| good
2026-01-22T11:00:00.000Z	56 \| moderate	12.053 \| good	47.456 \| good	4.285 \| good	0.828 \| good	16.862 \| good	0.791 \| good
2026-01-22T12:00:00.000Z	54 \| moderate	11.423 \| good	33.237 \| good	3.327 \| good	0.817 \| good	16.166 \| good	0.757 \| good
2026-01-22T13:00:00.000Z	56 \| moderate	12.012 \| good	51.879 \| good	2.686 \| good	0.805 \| good	15.908 \| good	0.692 \| good
2026-01-22T14:00:00.000Z	58 \| moderate	12.566 \| fine	35.387 \| good	4.849 \| good	0.778 \| good	15.361 \| good	0.764 \| good
2026-01-22T15:00:00.000Z	56 \| moderate	11.558 \| good	48.549 \| good	5.41 \| good	0.801 \| good	16.083 \| good	0.89 \| good
2026-01-22T16:00:00.000Z	66 \| moderate	16.668 \| fine	54.071 \| good	4.675 \| good	0.771 \| good	17.549 \| good	1.096 \| good
2026-01-22T17:00:00.000Z	60 \| moderate	14.435 \| fine	46.796 \| good	2.15 \| good	0.819 \| good	18.069 \| good	1.106 \| good
2026-01-22T18:00:00.000Z	58 \| moderate	12.598 \| fine	25.224 \| good	2.13 \| good	0.95 \| good	15.134 \| good	1.1 \| good
2026-01-22T19:00:00.000Z	67 \| moderate	16.844 \| fine	87.881 \| fine	3.882 \| good	0.923 \| good	15.954 \| good	0.904 \| good
2026-01-22T20:00:00.000Z	64 \| moderate	16.017 \| fine	66.661 \| fine	11.018 \| good	1.081 \| good	18.082 \| good	0.813 \| good
2026-01-22T21:00:00.000Z	62 \| moderate	14.653 \| fine	55.438 \| fine	10.874 \| good	0.992 \| good	13.939 \| good	0.497 \| good
2026-01-22T22:00:00.000Z	62 \| moderate	14.988 \| fine	63.383 \| fine	11.685 \| good	0.81 \| good	13.381 \| good	0.394 \| good
2026-01-22T23:00:00.000Z	60 \| moderate	14.377 \| fine	59.596 \| fine	15.943 \| good	0.994 \| good	14.755 \| good	0.411 \| good
2026-01-23T00:00:00.000Z	49 \| good	9.329 \| good	46.948 \| good	17.912 \| good	0.921 \| good	13.419 \| good	0.438 \| good
2026-01-23T01:00:00.000Z	52 \| moderate	10.459 \| good	41.21 \| good	19.761 \| good	0.839 \| good	12.79 \| good	0.387 \| good
2026-01-23T02:00:00.000Z	60 \| moderate	14.213 \| fine	24.231 \| good	13.54 \| good	1.475 \| good	10.363 \| good	0.452 \| good
2026-01-23T03:00:00.000Z	58 \| moderate	12.647 \| fine	56.723 \| fine	14.645 \| good	0.898 \| good	19.825 \| good	0.485 \| good
2026-01-23T04:00:00.000Z	60 \| moderate	14.321 \| fine	52.423 \| good	7.794 \| good	0.703 \| good	23.422 \| good	0.531 \| good
2026-01-23T05:00:00.000Z	64 \| moderate	16.464 \| fine	46.32 \| good	7.335 \| good	0.6 \| good	27.572 \| good	0.702 \| good
2026-01-23T06:00:00.000Z	69 \| moderate	19.273 \| fine	56.456 \| fine	3.281 \| good	0.488 \| good	16.992 \| good	0.584 \| good
2026-01-23T07:00:00.000Z	79 \| moderate	23.7 \| fine	68.143 \| fine	5.31 \| good	0.434 \| good	18.365 \| good	0.632 \| good
2026-01-23T08:00:00.000Z	82 \| moderate	25.809 \| fine	54.575 \| good	4.33 \| good	0.455 \| good	21.19 \| good	0.657 \| good
2026-01-23T09:00:00.000Z	73 \| moderate	21.013 \| fine	68.245 \| fine	12.023 \| good	0.495 \| good	20.153 \| good	0.709 \| good
2026-01-23T10:00:00.000Z	73 \| moderate	21.359 \| fine	67.844 \| fine	5.695 \| good	0.555 \| good	18.116 \| good	0.68 \| good
2026-01-23T11:00:00.000Z	79 \| moderate	24.342 \| fine	56.897 \| fine	7.003 \| good	0.525 \| good	17.398 \| good	0.698 \| good
2026-01-23T12:00:00.000Z	66 \| moderate	16.513 \| fine	78.496 \| fine	4.545 \| good	0.388 \| good	17.216 \| good	0.669 \| good
2026-01-23T13:00:00.000Z	58 \| moderate	12.563 \| fine	60.817 \| fine	7.092 \| good	0.914 \| good	15.312 \| good	0.482 \| good
2026-01-23T14:00:00.000Z	54 \| moderate	11.158 \| good	54.563 \| good	6.442 \| good	0.844 \| good	16.042 \| good	0.456 \| good
2026-01-23T15:00:00.000Z	56 \| moderate	11.952 \| good	42.468 \| good	6.774 \| good	0.852 \| good	12.744 \| good	0.404 \| good
2026-01-23T16:00:00.000Z	49 \| good	9.48 \| good	40.746 \| good	2.266 \| good	0.741 \| good	12.008 \| good	0.432 \| good
2026-01-23T17:00:00.000Z	44 \| good	8.415 \| good	46.802 \| good	7.259 \| good	0.596 \| good	11.639 \| good	0.451 \| good
2026-01-23T18:00:00.000Z	56 \| moderate	11.529 \| good	22.282 \| good	11.763 \| good	0.64 \| good	11.081 \| good	0.428 \| good
2026-01-23T19:00:00.000Z	38 \| good	7.276 \| good	20.229 \| good	12.104 \| good	0.801 \| good	9.229 \| good	0.411 \| good
2026-01-23T20:00:00.000Z	52 \| moderate	9.651 \| good	29.478 \| good	15.083 \| good	0.952 \| good	9.638 \| good	0.399 \| good
2026-01-23T21:00:00.000Z	54 \| moderate	11.042 \| good	49.588 \| good	13.735 \| good	0.882 \| good	9.234 \| good	0.394 \| good
2026-01-23T22:00:00.000Z	56 \| moderate	11.738 \| good	51.288 \| good	16.301 \| good	0.775 \| good	9.893 \| good	0.423 \| good
2026-01-23T23:00:00.000Z	58 \| moderate	13.37 \| fine	47.165 \| good	15.863 \| good	0.873 \| good	10.266 \| good	0.412 \| good
2026-01-24T00:00:00.000Z	58 \| moderate	12.553 \| fine	43.557 \| good	15.184 \| good	0.9 \| good	11.005 \| good	0.429 \| good
2026-01-24T01:00:00.000Z	64 \| moderate	16.109 \| fine	66.578 \| fine	11.98 \| good	0.723 \| good	12.836 \| good	0.418 \| good
2026-01-24T02:00:00.000Z	66 \| moderate	17.445 \| fine	69.453 \| fine	12.209 \| good	0.599 \| good	15.367 \| good	0.506 \| good
2026-01-24T03:00:00.000Z	58 \| moderate	12.611 \| fine	53.996 \| good	17.632 \| good	0.566 \| good	13.394 \| good	0.631 \| good
2026-01-24T04:00:00.000Z	60 \| moderate	13.524 \| fine	46.276 \| good	12.454 \| good	0.533 \| good	17.277 \| good	0.67 \| good
2026-01-24T05:00:00.000Z	71 \| moderate	19.616 \| fine	80.137 \| fine	12.011 \| good	0.543 \| good	19.364 \| good	0.799 \| good
2026-01-24T04:00:00.000Z	71 \| moderate	19.609 \| fine	86.236 \| fine	16.831 \| good	2.744 \| good	22.988 \| good	0.336 \| good
2026-01-24T05:00:00.000Z	69 \| moderate	19.09 \| fine	84.208 \| fine	18.671 \| good	2.937 \| good	24.04 \| good	0.354 \| good
2026-01-24T06:00:00.000Z	71 \| moderate	19.571 \| fine	86.564 \| fine	15.201 \| good	3.13 \| good	25.093 \| good	0.371 \| good
2026-01-24T07:00:00.000Z	67 \| moderate	18.221 \| fine	81.146 \| fine	13.985 \| good	3.015 \| good	24.489 \| good	0.368 \| good
2026-01-24T08:00:00.000Z	60 \| moderate	13.865 \| fine	61.772 \| fine	15.346 \| good	2.9 \| good	23.886 \| good	0.366 \| good
2026-01-24T09:00:00.000Z	54 \| moderate	11.303 \| good	50.284 \| good	12.286 \| good	2.784 \| good	23.283 \| good	0.363 \| good
2026-01-24T10:00:00.000Z	38 \| good	7.25 \| good	32.096 \| good	10.77 \| good	2.714 \| good	22.549 \| good	0.354 \| good
2026-01-24T11:00:00.000Z	44 \| good	7.86 \| good	35.031 \| good	9.868 \| good	2.645 \| good	21.815 \| good	0.344 \| good
2026-01-24T12:00:00.000Z	38 \| good	7.171 \| good	31.214 \| good	8.219 \| good	2.575 \| good	21.081 \| good	0.335 \| good
2026-01-24T13:00:00.000Z	33 \| good	5.819 \| good	25.525 \| good	8.048 \| good	2.623 \| good	21.143 \| good	0.321 \| good
2026-01-24T14:00:00.000Z	33 \| good	6.226 \| good	27.219 \| good	7.612 \| good	2.671 \| good	21.204 \| good	0.308 \| good
2026-01-24T15:00:00.000Z	49 \| good	9.187 \| good	40.485 \| good	8.798 \| good	2.72 \| good	21.265 \| good	0.294 \| good
2026-01-24T16:00:00.000Z	49 \| good	8.678 \| good	38.398 \| good	10.981 \| good	2.435 \| good	18.327 \| good	0.276 \| good
2026-01-24T17:00:00.000Z	44 \| good	7.522 \| good	33.07 \| good	21.16 \| good	2.15 \| good	15.39 \| good	0.258 \| good
2026-01-24T18:00:00.000Z	24 \| good	3.394 \| good	14.649 \| good	26.458 \| good	1.866 \| good	12.452 \| good	0.239 \| good
2026-01-24T19:00:00.000Z	24 \| good	3.717 \| good	16.351 \| good	26.396 \| good	1.603 \| good	9.942 \| good	0.211 \| good
2026-01-24T20:00:00.000Z	27 \| good	3.34 \| good	14.879 \| good	28.699 \| good	1.341 \| good	7.433 \| good	0.182 \| good
2026-01-24T21:00:00.000Z	27 \| good	4.501 \| good	19.485 \| good	28.453 \| good	1.079 \| good	4.924 \| good	0.153 \| good
2026-01-24T22:00:00.000Z	29 \| good	2.047 \| good	8.567 \| good	30.936 \| good	1.052 \| good	5.265 \| good	0.151 \| good
2026-01-24T23:00:00.000Z	28 \| good	0.797 \| good	3.121 \| good	30.256 \| good	1.025 \| good	5.606 \| good	0.15 \| good
2026-01-25T00:00:00.000Z	28 \| good	1.308 \| good	5.164 \| good	30.407 \| good	0.998 \| good	5.947 \| good	0.148 \| good
2026-01-25T01:00:00.000Z	19 \| good	1.377 \| good	5.543 \| good	20.458 \| good	1.116 \| good	12.184 \| good	0.184 \| good
2026-01-25T02:00:00.000Z	27 \| good	4.623 \| good	20.159 \| good	13.134 \| good	1.234 \| good	18.42 \| good	0.219 \| good
2026-01-25T03:00:00.000Z	33 \| good	5.518 \| good	24.064 \| good	10.097 \| good	1.352 \| good	24.657 \| good	0.255 \| good
2026-01-25T04:00:00.000Z	25 \| good	4.447 \| good	19.555 \| good	10.144 \| good	1.414 \| good	25.7 \| good	0.272 \| good
2026-01-25T05:00:00.000Z	25 \| good	3.561 \| good	14.88 \| good	13.131 \| good	1.477 \| good	26.743 \| good	0.289 \| good
2026-01-25T06:00:00.000Z	26 \| good	2.532 \| good	10.484 \| good	14.927 \| good	1.539 \| good	27.785 \| good	0.306 \| good
2026-01-25T07:00:00.000Z	25 \| good	2.782 \| good	11.745 \| good	11.188 \| good	1.386 \| good	26.94 \| good	0.306 \| good
2026-01-25T08:00:00.000Z	25 \| good	3.201 \| good	13.369 \| good	9.044 \| good	1.232 \| good	26.094 \| good	0.306 \| good
2026-01-25T09:00:00.000Z	24 \| good	4.296 \| good	18.688 \| good	6.5 \| good	1.079 \| good	25.248 \| good	0.305 \| good
2026-01-25T10:00:00.000Z	23 \| good	2.738 \| good	11.319 \| good	4.522 \| good	0.981 \| good	23.988 \| good	0.292 \| good
2026-01-25T11:00:00.000Z	22 \| good	3.111 \| good	13.039 \| good	5.034 \| good	0.884 \| good	22.728 \| good	0.279 \| good
2026-01-25T12:00:00.000Z	20 \| good	2.956 \| good	12.721 \| good	3.616 \| good	0.786 \| good	21.468 \| good	0.266 \| good
2026-01-25T13:00:00.000Z	20 \| good	2.712 \| good	11.512 \| good	4.209 \| good	0.852 \| good	21.157 \| good	0.256 \| good
2026-01-25T14:00:00.000Z	20 \| good	1.471 \| good	5.954 \| good	5.283 \| good	0.918 \| good	20.847 \| good	0.246 \| good
2026-01-25T15:00:00.000Z	20 \| good	2.472 \| good	10.224 \| good	6.223 \| good	0.984 \| good	20.536 \| good	0.236 \| good
2026-01-25T16:00:00.000Z	22 \| good	3.867 \| good	16.764 \| good	6.801 \| good	1.055 \| good	18.545 \| good	0.244 \| good
2026-01-25T17:00:00.000Z	52 \| moderate	10.182 \| good	45.32 \| good	12.156 \| good	1.126 \| good	16.554 \| good	0.251 \| good
2026-01-25T18:00:00.000Z	44 \| good	7.968 \| good	35.067 \| good	18.454 \| good	1.197 \| good	14.563 \| good	0.259 \| good
2026-01-25T19:00:00.000Z	44 \| good	7.667 \| good	33.633 \| good	23.203 \| good	1.269 \| good	12.55 \| good	0.241 \| good
2026-01-25T20:00:00.000Z	44 \| good	7.671 \| good	33.965 \| good	26.856 \| good	1.341 \| good	10.538 \| good	0.222 \| good
2026-01-25T21:00:00.000Z	33 \| good	5.693 \| good	24.893 \| good	27.997 \| good	1.412 \| good	8.525 \| good	0.204 \| good
2026-01-25T22:00:00.000Z	30 \| good	3.706 \| good	15.7 \| good	31.921 \| good	1.43 \| good	9.542 \| good	0.209 \| good
2026-01-25T23:00:00.000Z	33 \| good	5.532 \| good	24.076 \| good	32.02 \| good	1.449 \| good	10.558 \| good	0.215 \| good
2026-01-26T00:00:00.000Z	58 \| moderate	12.989 \| fine	16.17 \| good	21.442 \| good	1.491 \| good	11.831 \| good	0.221 \| good
2026-01-26T01:00:00.000Z	52 \| moderate	10.14 \| good	44.721 \| good	19.478 \| good	1.541 \| good	15.319 \| good	0.271 \| good
2026-01-26T02:00:00.000Z	60 \| moderate	14.272 \| fine	64.108 \| fine	10.299 \| good	1.615 \| good	19.064 \| good	0.321 \| good
2026-01-26T03:00:00.000Z	60 \| moderate	14.472 \| fine	64.722 \| fine	8.757 \| good	1.69 \| good	22.809 \| good	0.371 \| 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?