What is the PM10 level in Palo Alto, California at the moment?

The PM10 concentration in Palo Alto, California is 28.117 μg/m3 at the moment.

What is the sulfur dioxide (SO2) level in Palo Alto, California at the moment?

Currently, Palo Alto, California has a sulfur dioxide (SO2) concentration of 0.661 ppb.

What is the ozone (O3) level in Palo Alto, California at the moment?

The current ozone (O3) level in Palo Alto, California at the moment is 36.745 ppm.

What is the nitrogen dioxide (NO2) level in Palo Alto, California at the moment?

Nitrogen dioxide (NO2) level in Palo Alto, California at the moment is 1.69 ppb.

Live air quality index in Palo Alto, California today

Q: What is the PM2.5 level in Palo Alto, California at the moment?

PM2.5 levels in Palo Alto, California are currently 6.263 μg/m3.

Stay updated with real-time air quality in Palo Alto, 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

Palo Alto, California

Last updated: ... (Local time)

Major air pollutants in Palo Alto, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

6.26 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

28.12 μg/m³

155

255

425

605+

Ozone (O₃)

36.74 ppb

201

201+

Sulfur Dioxide (SO₂)

0.66 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

1.69 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.29 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

High

Palo Alto, California

Get Live Pollen Counts

Palo Alto, California

Scroll To Air Quality Map

Track live Palo Alto, California air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-04-23T20:00:00.000Z	30 \| good	5.243 \| good	22.092 \| good	31.611 \| good	0.55 \| good	3.115 \| good	0.289 \| good
2026-04-23T21:00:00.000Z	32 \| good	3.122 \| good	12.903 \| good	34.671 \| good	0.515 \| good	2.936 \| good	0.289 \| good
2026-04-23T22:00:00.000Z	32 \| good	2.718 \| good	11.777 \| good	35.253 \| good	0.42 \| good	2.782 \| good	0.289 \| good
2026-04-23T23:00:00.000Z	34 \| good	3.605 \| good	17.274 \| good	36.644 \| good	0.302 \| good	6.197 \| good	0.297 \| good
2026-04-24T00:00:00.000Z	32 \| good	3.588 \| good	15.761 \| good	34.703 \| good	0.342 \| good	2.063 \| good	0.294 \| good
2026-04-24T01:00:00.000Z	35 \| good	3.676 \| good	15.843 \| good	38.033 \| good	0.34 \| good	1.98 \| good	0.214 \| good
2026-04-24T02:00:00.000Z	36 \| good	2.848 \| good	11.528 \| good	38.711 \| good	0.405 \| good	1.844 \| good	0.211 \| good
2026-04-24T03:00:00.000Z	27 \| good	3.085 \| good	13.352 \| good	28.949 \| good	0.88 \| good	8.002 \| good	0.166 \| good
2026-04-24T04:00:00.000Z	35 \| good	1.175 \| good	4.864 \| good	37.999 \| good	0.32 \| good	3.778 \| good	0.291 \| good
2026-04-24T05:00:00.000Z	32 \| good	2.123 \| good	9.198 \| good	35.252 \| good	0.388 \| good	2.99 \| good	0.213 \| good
2026-04-24T06:00:00.000Z	32 \| good	2.414 \| good	10.079 \| good	35.233 \| good	0.397 \| good	3.052 \| good	0.214 \| good
2026-04-24T07:00:00.000Z	31 \| good	3.298 \| good	13.641 \| good	32.972 \| good	0.571 \| good	3.655 \| good	0.294 \| good
2026-04-24T08:00:00.000Z	28 \| good	4.699 \| good	20.358 \| good	29.588 \| good	0.343 \| good	5.048 \| good	0.291 \| good
2026-04-24T09:00:00.000Z	27 \| good	5.005 \| good	21.909 \| good	25.528 \| good	0.364 \| good	4.669 \| good	0.29 \| good
2026-04-24T10:00:00.000Z	22 \| good	3.019 \| good	12.729 \| good	23.61 \| good	0.297 \| good	3.984 \| good	0.283 \| good
2026-04-24T11:00:00.000Z	20 \| good	3.127 \| good	12.566 \| good	22.457 \| good	0.291 \| good	4.389 \| good	0.296 \| good
2026-04-24T12:00:00.000Z	22 \| good	3.681 \| good	15.063 \| good	21.62 \| good	0.31 \| good	4.423 \| good	0.297 \| good
2026-04-24T13:00:00.000Z	22 \| good	3.592 \| good	15.485 \| good	21.999 \| good	0.339 \| good	4.658 \| good	0.297 \| good
2026-04-24T14:00:00.000Z	22 \| good	4.405 \| good	19.972 \| good	20.347 \| good	0.389 \| good	9.761 \| good	0.373 \| good
2026-04-24T15:00:00.000Z	27 \| good	4.601 \| good	20.671 \| good	17.215 \| good	0.314 \| good	9.855 \| good	0.375 \| good
2026-04-24T16:00:00.000Z	33 \| good	5.844 \| good	25.128 \| good	16.715 \| good	0.413 \| good	9.063 \| good	0.384 \| good
2026-04-24T17:00:00.000Z	33 \| good	5.74 \| good	24.911 \| good	25.891 \| good	0.355 \| good	8.48 \| good	0.373 \| good
2026-04-24T18:00:00.000Z	33 \| good	6.295 \| good	27.818 \| good	35.789 \| good	0.316 \| good	2.618 \| good	0.295 \| good
2026-04-24T19:00:00.000Z	38 \| good	6.929 \| good	31.022 \| good	35.854 \| good	0.326 \| good	2.725 \| good	0.293 \| good
2026-04-24T20:00:00.000Z	49 \| good	8.535 \| good	37.157 \| good	36.976 \| good	0.297 \| good	2.314 \| good	0.291 \| good
2026-04-24T21:00:00.000Z	49 \| good	8.611 \| good	36.161 \| good	37.937 \| good	0.407 \| good	2.437 \| good	0.294 \| good
2026-04-24T22:00:00.000Z	44 \| good	8.435 \| good	37.194 \| good	38.221 \| good	0.394 \| good	2.423 \| good	0.294 \| good
2026-04-24T23:00:00.000Z	44 \| good	7.782 \| good	34.497 \| good	36.056 \| good	0.281 \| good	2.209 \| good	0.294 \| good
2026-04-25T00:00:00.000Z	44 \| good	7.831 \| good	34.453 \| good	36.022 \| good	0.411 \| good	1.539 \| good	0.214 \| good
2026-04-25T01:00:00.000Z	38 \| good	7.198 \| good	31.903 \| good	36.592 \| good	0.391 \| good	1.539 \| good	0.216 \| good
2026-04-25T02:00:00.000Z	38 \| good	7.172 \| good	31.647 \| good	36.424 \| good	0.312 \| good	1.305 \| good	0.214 \| good
2026-04-25T03:00:00.000Z	38 \| good	7.349 \| good	32.148 \| good	35.335 \| good	0.429 \| good	1.443 \| good	0.295 \| good
2026-04-25T04:00:00.000Z	38 \| good	7.231 \| good	31.923 \| good	35.124 \| good	0.451 \| good	1.494 \| good	0.293 \| good
2026-04-25T05:00:00.000Z	38 \| good	6.794 \| good	29.853 \| good	34.327 \| good	0.391 \| good	1.92 \| good	0.291 \| good
2026-04-25T06:00:00.000Z	38 \| good	6.873 \| good	30.221 \| good	33.517 \| good	0.371 \| good	1.934 \| good	0.291 \| good
2026-04-25T07:00:00.000Z	38 \| good	6.945 \| good	30.763 \| good	34.34 \| good	0.25 \| good	2.064 \| good	0.291 \| good
2026-04-25T08:00:00.000Z	38 \| good	6.906 \| good	30.543 \| good	33.317 \| good	0.282 \| good	2.625 \| good	0.29 \| good
2026-04-25T09:00:00.000Z	38 \| good	6.722 \| good	29.173 \| good	33.317 \| good	0.282 \| good	2.612 \| good	0.29 \| good
2026-04-25T10:00:00.000Z	38 \| good	6.886 \| good	29.386 \| good	33.317 \| good	0.471 \| good	1.353 \| good	0.149 \| good
2026-04-25T11:00:00.000Z	33 \| good	5.583 \| good	21.119 \| good	33.317 \| good	0.541 \| good	1.505 \| good	0.136 \| good
2026-04-25T12:00:00.000Z	38 \| good	7.294 \| good	17.186 \| good	26.027 \| good	0.217 \| good	1.298 \| good	0.242 \| good
2026-04-25T13:00:00.000Z	35 \| good	6.139 \| good	27.434 \| good	37.713 \| good	0.407 \| good	0.774 \| good	0.202 \| good
2026-04-25T14:00:00.000Z	34 \| good	5.295 \| good	22.907 \| good	37.48 \| good	0.513 \| good	1.997 \| good	0.279 \| good
2026-04-25T15:00:00.000Z	32 \| good	5.341 \| good	23.64 \| good	35.16 \| good	0.457 \| good	2.869 \| good	0.285 \| good
2026-04-25T16:00:00.000Z	31 \| good	5.47 \| good	23.554 \| good	32.829 \| good	0.456 \| good	2.993 \| good	0.293 \| good
2026-04-25T17:00:00.000Z	32 \| good	4.962 \| good	22.195 \| good	35.058 \| good	0.596 \| good	2.219 \| good	0.293 \| good
2026-04-25T18:00:00.000Z	34 \| good	6.205 \| good	27.906 \| good	36.532 \| good	0.661 \| good	1.597 \| good	0.291 \| good
2026-04-25T19:00:00.000Z	34 \| good	6.263 \| good	28.117 \| good	36.745 \| good	0.661 \| good	1.69 \| good	0.29 \| good
2026-04-25T20:00:00.000Z	34 \| good	4.451 \| good	19.157 \| good	37.203 \| good	0.479 \| good	2.003 \| good	0.123 \| good
2026-04-25T21:00:00.000Z	34 \| good	3.131 \| good	12.973 \| good	37.13 \| good	0.464 \| good	1.864 \| good	0.122 \| good
2026-04-25T22:00:00.000Z	32 \| good	4.985 \| good	21.288 \| good	35.079 \| good	0.44 \| good	1.886 \| good	0.121 \| good
2026-04-25T23:00:00.000Z	35 \| good	4.057 \| good	17.993 \| good	38.41 \| good	0.417 \| good	1.908 \| good	0.121 \| good
2026-04-26T00:00:00.000Z	39 \| good	3.735 \| good	16.304 \| good	42.003 \| good	0.394 \| good	1.93 \| good	0.121 \| good
2026-04-26T01:00:00.000Z	40 \| good	3.969 \| good	17.108 \| good	43.297 \| good	0.396 \| good	2.452 \| good	0.123 \| good
2026-04-26T02:00:00.000Z	37 \| good	5.07 \| good	21.939 \| good	40.075 \| good	0.398 \| good	2.975 \| good	0.126 \| good
2026-04-26T03:00:00.000Z	34 \| good	4.497 \| good	19.602 \| good	37.108 \| good	0.399 \| good	3.497 \| good	0.129 \| good
2026-04-26T04:00:00.000Z	30 \| good	4.406 \| good	19.449 \| good	32.161 \| good	0.475 \| good	4.138 \| good	0.132 \| good
2026-04-26T05:00:00.000Z	30 \| good	4.4 \| good	19.403 \| good	31.657 \| good	0.551 \| good	4.778 \| good	0.135 \| good
2026-04-26T06:00:00.000Z	28 \| good	4.374 \| good	18.846 \| good	29.901 \| good	0.628 \| good	5.418 \| good	0.138 \| good
2026-04-26T07:00:00.000Z	24 \| good	3.223 \| good	13.795 \| good	26.486 \| good	0.642 \| good	5.857 \| good	0.142 \| good
2026-04-26T08:00:00.000Z	24 \| good	3.536 \| good	15.631 \| good	25.739 \| good	0.657 \| good	6.295 \| good	0.146 \| good
2026-04-26T09:00:00.000Z	26 \| good	2.912 \| good	12.073 \| good	27.525 \| good	0.672 \| good	6.734 \| good	0.15 \| good
2026-04-26T10:00:00.000Z	27 \| good	2.484 \| good	10.305 \| good	28.958 \| good	0.671 \| good	6.133 \| good	0.147 \| good
2026-04-26T11:00:00.000Z	28 \| good	2.554 \| good	10.337 \| good	29.742 \| good	0.67 \| good	5.531 \| good	0.144 \| good
2026-04-26T12:00:00.000Z	24 \| good	2.432 \| good	10.004 \| good	26.123 \| good	0.669 \| good	4.93 \| good	0.141 \| good
2026-04-26T13:00:00.000Z	26 \| good	3.185 \| good	13.834 \| good	27.697 \| good	0.68 \| good	4.728 \| good	0.141 \| good
2026-04-26T14:00:00.000Z	25 \| good	3.641 \| good	16.05 \| good	26.931 \| good	0.69 \| good	4.527 \| good	0.142 \| good
2026-04-26T15:00:00.000Z	33 \| good	4.543 \| good	19.709 \| good	35.723 \| good	0.7 \| good	4.325 \| good	0.143 \| good
2026-04-26T16:00:00.000Z	38 \| good	5.66 \| good	24.355 \| good	40.724 \| good	0.666 \| good	3.55 \| good	0.14 \| good
2026-04-26T17:00:00.000Z	41 \| good	5.839 \| good	25.682 \| good	43.978 \| good	0.632 \| good	2.776 \| good	0.138 \| good
2026-04-26T18:00:00.000Z	41 \| good	5.887 \| good	25.664 \| good	44.494 \| good	0.598 \| good	2.001 \| good	0.136 \| good
2026-04-26T19:00:00.000Z	41 \| good	6.491 \| good	29.039 \| good	44.417 \| good	0.572 \| good	1.685 \| good	0.133 \| good
2026-04-26T20:00:00.000Z	42 \| good	4.647 \| good	20.314 \| good	44.878 \| good	0.547 \| good	1.369 \| good	0.13 \| good
2026-04-26T21:00:00.000Z	44 \| good	3.569 \| good	15.453 \| good	47.818 \| good	0.521 \| good	1.053 \| good	0.128 \| good
2026-04-26T22:00:00.000Z	44 \| good	5.058 \| good	21.686 \| good	47.226 \| good	0.509 \| good	1.127 \| good	0.127 \| good
2026-04-26T23:00:00.000Z	44 \| good	5.666 \| good	24.269 \| good	47.211 \| good	0.496 \| good	1.201 \| good	0.127 \| good
2026-04-27T00:00:00.000Z	44 \| good	4.392 \| good	19.286 \| good	47.993 \| good	0.484 \| good	1.275 \| good	0.126 \| good
2026-04-27T01:00:00.000Z	44 \| good	3.616 \| good	15.977 \| good	47.892 \| good	0.5 \| good	1.998 \| good	0.128 \| good
2026-04-27T02:00:00.000Z	42 \| good	4.052 \| good	17.735 \| good	44.873 \| good	0.515 \| good	2.722 \| good	0.131 \| good
2026-04-27T03:00:00.000Z	37 \| good	4.855 \| good	21.271 \| good	39.859 \| good	0.531 \| good	3.445 \| good	0.133 \| good
2026-04-27T04:00:00.000Z	33 \| good	5.655 \| good	24.3 \| good	36.249 \| good	0.627 \| good	5.206 \| good	0.14 \| good
2026-04-27T05:00:00.000Z	33 \| good	5.775 \| good	25.541 \| good	33.986 \| good	0.722 \| good	6.967 \| good	0.148 \| good
2026-04-27T06:00:00.000Z	33 \| good	5.877 \| good	25.581 \| good	28.77 \| good	0.817 \| good	8.728 \| good	0.155 \| good
2026-04-27T07:00:00.000Z	27 \| good	5.36 \| good	23.407 \| good	26.156 \| good	0.819 \| good	8.956 \| good	0.157 \| good
2026-04-27T08:00:00.000Z	23 \| good	3.992 \| good	17.626 \| good	24.981 \| good	0.822 \| good	9.183 \| good	0.158 \| good
2026-04-27T09:00:00.000Z	22 \| good	4.029 \| good	17.668 \| good	20.617 \| good	0.824 \| good	9.41 \| good	0.16 \| good
2026-04-27T10:00:00.000Z	27 \| good	4.526 \| good	19.97 \| good	17.104 \| good	0.812 \| good	9.029 \| good	0.158 \| good
2026-04-27T11:00:00.000Z	27 \| good	5.086 \| good	22.118 \| good	16.101 \| good	0.8 \| good	8.649 \| good	0.155 \| good
2026-04-27T12:00:00.000Z	27 \| good	4.81 \| good	21.204 \| good	20.931 \| good	0.787 \| good	8.268 \| good	0.153 \| good
2026-04-27T13:00:00.000Z	27 \| good	4.823 \| good	21.191 \| good	15.601 \| good	0.817 \| good	8.076 \| good	0.157 \| good
2026-04-27T14:00:00.000Z	33 \| good	6.13 \| good	27.03 \| good	15.907 \| good	0.847 \| good	7.884 \| good	0.161 \| good
2026-04-27T15:00:00.000Z	33 \| good	6.232 \| good	27.667 \| good	30.975 \| good	0.877 \| good	7.692 \| good	0.165 \| good
2026-04-27T16:00:00.000Z	36 \| good	5.601 \| good	24.237 \| good	39.447 \| good	0.799 \| good	5.798 \| good	0.151 \| good
2026-04-27T17:00:00.000Z	38 \| good	7.078 \| good	31.125 \| good	37.406 \| good	0.721 \| good	3.904 \| good	0.137 \| good
2026-04-27T18:00:00.000Z	38 \| good	6.704 \| good	29.867 \| good	39.546 \| good	0.643 \| good	2.01 \| good	0.124 \| good
2026-04-27T19:00:00.000Z	39 \| good	7.071 \| good	31.291 \| good	42.229 \| good	0.635 \| good	1.758 \| good	0.122 \| good

Palo Alto

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Palo Alto, California air quality map: Stay updated on AQI near you

0.26ppm

How accurate is California, USA air quality data?

Air quality and pollutant data for California, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.

Source: Ambee Data Sources

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Frequently asked questions

How often is air quality information updated for Palo Alto, California?

The air quality information for Palo Alto, California is updated every hour for accuracy.

What time in the last 24 hours was the air quality in Palo Alto, California at its worst?

In the past 24 hours, the air quality in Palo Alto, California was at its worst at 09:00:00 on 2026-04-24.

When did Palo Alto, California experience the best air quality in the last 24 hours?

In the last 24 hours, the best air quality in Palo Alto, California was observed at 04:00:00 on 2026-04-25.

What is the AQI in Palo Alto, California right now?

As of now, the AQI in Palo Alto, California is 34, indicating Good conditions.

What is the most common type of pollution in Palo Alto, California?

Palo Alto, California air has the highest levels of O3.

What should I do in case of poor air quality in Palo Alto, California?

Poor air quality in Palo Alto, California means it's advisable to stay indoors and wear a mask for your protection.

What is the PM_2.5 level in Palo Alto, California at the moment?

PM_2.5 levels in Palo Alto, California are currently 6.263 μg/m³.

What is the PM₁₀ level in Palo Alto, California at the moment?

The PM₁₀ concentration in Palo Alto, California is 28.117 μg/m³ at the moment.

What is the carbon monoxide (CO) level in Palo Alto, California at the moment?

The current carbon monoxide (CO) concentration in Palo Alto, California is 0.29 ppm.

What is the sulfur dioxide (SO₂) level in Palo Alto, California at the moment?

Currently, Palo Alto, California has a sulfur dioxide (SO₂) concentration of 0.661 ppb.

What is the ozone (O₃) level in Palo Alto, California at the moment?

The current ozone (O₃) level in Palo Alto, California at the moment is 36.745 ppm.

What is the nitrogen dioxide (NO₂) level in Palo Alto, California at the moment?

Nitrogen dioxide (NO₂) level in Palo Alto, California at the moment is 1.69 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-04-23T20:00:00.000Z	30 \| good	5.243 \| good	22.092 \| good	31.611 \| good	0.55 \| good	3.115 \| good	0.289 \| good
2026-04-23T21:00:00.000Z	32 \| good	3.122 \| good	12.903 \| good	34.671 \| good	0.515 \| good	2.936 \| good	0.289 \| good
2026-04-23T22:00:00.000Z	32 \| good	2.718 \| good	11.777 \| good	35.253 \| good	0.42 \| good	2.782 \| good	0.289 \| good
2026-04-23T23:00:00.000Z	34 \| good	3.605 \| good	17.274 \| good	36.644 \| good	0.302 \| good	6.197 \| good	0.297 \| good
2026-04-24T00:00:00.000Z	32 \| good	3.588 \| good	15.761 \| good	34.703 \| good	0.342 \| good	2.063 \| good	0.294 \| good
2026-04-24T01:00:00.000Z	35 \| good	3.676 \| good	15.843 \| good	38.033 \| good	0.34 \| good	1.98 \| good	0.214 \| good
2026-04-24T02:00:00.000Z	36 \| good	2.848 \| good	11.528 \| good	38.711 \| good	0.405 \| good	1.844 \| good	0.211 \| good
2026-04-24T03:00:00.000Z	27 \| good	3.085 \| good	13.352 \| good	28.949 \| good	0.88 \| good	8.002 \| good	0.166 \| good
2026-04-24T04:00:00.000Z	35 \| good	1.175 \| good	4.864 \| good	37.999 \| good	0.32 \| good	3.778 \| good	0.291 \| good
2026-04-24T05:00:00.000Z	32 \| good	2.123 \| good	9.198 \| good	35.252 \| good	0.388 \| good	2.99 \| good	0.213 \| good
2026-04-24T06:00:00.000Z	32 \| good	2.414 \| good	10.079 \| good	35.233 \| good	0.397 \| good	3.052 \| good	0.214 \| good
2026-04-24T07:00:00.000Z	31 \| good	3.298 \| good	13.641 \| good	32.972 \| good	0.571 \| good	3.655 \| good	0.294 \| good
2026-04-24T08:00:00.000Z	28 \| good	4.699 \| good	20.358 \| good	29.588 \| good	0.343 \| good	5.048 \| good	0.291 \| good
2026-04-24T09:00:00.000Z	27 \| good	5.005 \| good	21.909 \| good	25.528 \| good	0.364 \| good	4.669 \| good	0.29 \| good
2026-04-24T10:00:00.000Z	22 \| good	3.019 \| good	12.729 \| good	23.61 \| good	0.297 \| good	3.984 \| good	0.283 \| good
2026-04-24T11:00:00.000Z	20 \| good	3.127 \| good	12.566 \| good	22.457 \| good	0.291 \| good	4.389 \| good	0.296 \| good
2026-04-24T12:00:00.000Z	22 \| good	3.681 \| good	15.063 \| good	21.62 \| good	0.31 \| good	4.423 \| good	0.297 \| good
2026-04-24T13:00:00.000Z	22 \| good	3.592 \| good	15.485 \| good	21.999 \| good	0.339 \| good	4.658 \| good	0.297 \| good
2026-04-24T14:00:00.000Z	22 \| good	4.405 \| good	19.972 \| good	20.347 \| good	0.389 \| good	9.761 \| good	0.373 \| good
2026-04-24T15:00:00.000Z	27 \| good	4.601 \| good	20.671 \| good	17.215 \| good	0.314 \| good	9.855 \| good	0.375 \| good
2026-04-24T16:00:00.000Z	33 \| good	5.844 \| good	25.128 \| good	16.715 \| good	0.413 \| good	9.063 \| good	0.384 \| good
2026-04-24T17:00:00.000Z	33 \| good	5.74 \| good	24.911 \| good	25.891 \| good	0.355 \| good	8.48 \| good	0.373 \| good
2026-04-24T18:00:00.000Z	33 \| good	6.295 \| good	27.818 \| good	35.789 \| good	0.316 \| good	2.618 \| good	0.295 \| good
2026-04-24T19:00:00.000Z	38 \| good	6.929 \| good	31.022 \| good	35.854 \| good	0.326 \| good	2.725 \| good	0.293 \| good
2026-04-24T20:00:00.000Z	49 \| good	8.535 \| good	37.157 \| good	36.976 \| good	0.297 \| good	2.314 \| good	0.291 \| good
2026-04-24T21:00:00.000Z	49 \| good	8.611 \| good	36.161 \| good	37.937 \| good	0.407 \| good	2.437 \| good	0.294 \| good
2026-04-24T22:00:00.000Z	44 \| good	8.435 \| good	37.194 \| good	38.221 \| good	0.394 \| good	2.423 \| good	0.294 \| good
2026-04-24T23:00:00.000Z	44 \| good	7.782 \| good	34.497 \| good	36.056 \| good	0.281 \| good	2.209 \| good	0.294 \| good
2026-04-25T00:00:00.000Z	44 \| good	7.831 \| good	34.453 \| good	36.022 \| good	0.411 \| good	1.539 \| good	0.214 \| good
2026-04-25T01:00:00.000Z	38 \| good	7.198 \| good	31.903 \| good	36.592 \| good	0.391 \| good	1.539 \| good	0.216 \| good
2026-04-25T02:00:00.000Z	38 \| good	7.172 \| good	31.647 \| good	36.424 \| good	0.312 \| good	1.305 \| good	0.214 \| good
2026-04-25T03:00:00.000Z	38 \| good	7.349 \| good	32.148 \| good	35.335 \| good	0.429 \| good	1.443 \| good	0.295 \| good
2026-04-25T04:00:00.000Z	38 \| good	7.231 \| good	31.923 \| good	35.124 \| good	0.451 \| good	1.494 \| good	0.293 \| good
2026-04-25T05:00:00.000Z	38 \| good	6.794 \| good	29.853 \| good	34.327 \| good	0.391 \| good	1.92 \| good	0.291 \| good
2026-04-25T06:00:00.000Z	38 \| good	6.873 \| good	30.221 \| good	33.517 \| good	0.371 \| good	1.934 \| good	0.291 \| good
2026-04-25T07:00:00.000Z	38 \| good	6.945 \| good	30.763 \| good	34.34 \| good	0.25 \| good	2.064 \| good	0.291 \| good
2026-04-25T08:00:00.000Z	38 \| good	6.906 \| good	30.543 \| good	33.317 \| good	0.282 \| good	2.625 \| good	0.29 \| good
2026-04-25T09:00:00.000Z	38 \| good	6.722 \| good	29.173 \| good	33.317 \| good	0.282 \| good	2.612 \| good	0.29 \| good
2026-04-25T10:00:00.000Z	38 \| good	6.886 \| good	29.386 \| good	33.317 \| good	0.471 \| good	1.353 \| good	0.149 \| good
2026-04-25T11:00:00.000Z	33 \| good	5.583 \| good	21.119 \| good	33.317 \| good	0.541 \| good	1.505 \| good	0.136 \| good
2026-04-25T12:00:00.000Z	38 \| good	7.294 \| good	17.186 \| good	26.027 \| good	0.217 \| good	1.298 \| good	0.242 \| good
2026-04-25T13:00:00.000Z	35 \| good	6.139 \| good	27.434 \| good	37.713 \| good	0.407 \| good	0.774 \| good	0.202 \| good
2026-04-25T14:00:00.000Z	34 \| good	5.295 \| good	22.907 \| good	37.48 \| good	0.513 \| good	1.997 \| good	0.279 \| good
2026-04-25T15:00:00.000Z	32 \| good	5.341 \| good	23.64 \| good	35.16 \| good	0.457 \| good	2.869 \| good	0.285 \| good
2026-04-25T16:00:00.000Z	31 \| good	5.47 \| good	23.554 \| good	32.829 \| good	0.456 \| good	2.993 \| good	0.293 \| good
2026-04-25T17:00:00.000Z	32 \| good	4.962 \| good	22.195 \| good	35.058 \| good	0.596 \| good	2.219 \| good	0.293 \| good
2026-04-25T18:00:00.000Z	34 \| good	6.205 \| good	27.906 \| good	36.532 \| good	0.661 \| good	1.597 \| good	0.291 \| good
2026-04-25T19:00:00.000Z	34 \| good	6.263 \| good	28.117 \| good	36.745 \| good	0.661 \| good	1.69 \| good	0.29 \| good
2026-04-25T20:00:00.000Z	34 \| good	4.451 \| good	19.157 \| good	37.203 \| good	0.479 \| good	2.003 \| good	0.123 \| good
2026-04-25T21:00:00.000Z	34 \| good	3.131 \| good	12.973 \| good	37.13 \| good	0.464 \| good	1.864 \| good	0.122 \| good
2026-04-25T22:00:00.000Z	32 \| good	4.985 \| good	21.288 \| good	35.079 \| good	0.44 \| good	1.886 \| good	0.121 \| good
2026-04-25T23:00:00.000Z	35 \| good	4.057 \| good	17.993 \| good	38.41 \| good	0.417 \| good	1.908 \| good	0.121 \| good
2026-04-26T00:00:00.000Z	39 \| good	3.735 \| good	16.304 \| good	42.003 \| good	0.394 \| good	1.93 \| good	0.121 \| good
2026-04-26T01:00:00.000Z	40 \| good	3.969 \| good	17.108 \| good	43.297 \| good	0.396 \| good	2.452 \| good	0.123 \| good
2026-04-26T02:00:00.000Z	37 \| good	5.07 \| good	21.939 \| good	40.075 \| good	0.398 \| good	2.975 \| good	0.126 \| good
2026-04-26T03:00:00.000Z	34 \| good	4.497 \| good	19.602 \| good	37.108 \| good	0.399 \| good	3.497 \| good	0.129 \| good
2026-04-26T04:00:00.000Z	30 \| good	4.406 \| good	19.449 \| good	32.161 \| good	0.475 \| good	4.138 \| good	0.132 \| good
2026-04-26T05:00:00.000Z	30 \| good	4.4 \| good	19.403 \| good	31.657 \| good	0.551 \| good	4.778 \| good	0.135 \| good
2026-04-26T06:00:00.000Z	28 \| good	4.374 \| good	18.846 \| good	29.901 \| good	0.628 \| good	5.418 \| good	0.138 \| good
2026-04-26T07:00:00.000Z	24 \| good	3.223 \| good	13.795 \| good	26.486 \| good	0.642 \| good	5.857 \| good	0.142 \| good
2026-04-26T08:00:00.000Z	24 \| good	3.536 \| good	15.631 \| good	25.739 \| good	0.657 \| good	6.295 \| good	0.146 \| good
2026-04-26T09:00:00.000Z	26 \| good	2.912 \| good	12.073 \| good	27.525 \| good	0.672 \| good	6.734 \| good	0.15 \| good
2026-04-26T10:00:00.000Z	27 \| good	2.484 \| good	10.305 \| good	28.958 \| good	0.671 \| good	6.133 \| good	0.147 \| good
2026-04-26T11:00:00.000Z	28 \| good	2.554 \| good	10.337 \| good	29.742 \| good	0.67 \| good	5.531 \| good	0.144 \| good
2026-04-26T12:00:00.000Z	24 \| good	2.432 \| good	10.004 \| good	26.123 \| good	0.669 \| good	4.93 \| good	0.141 \| good
2026-04-26T13:00:00.000Z	26 \| good	3.185 \| good	13.834 \| good	27.697 \| good	0.68 \| good	4.728 \| good	0.141 \| good
2026-04-26T14:00:00.000Z	25 \| good	3.641 \| good	16.05 \| good	26.931 \| good	0.69 \| good	4.527 \| good	0.142 \| good
2026-04-26T15:00:00.000Z	33 \| good	4.543 \| good	19.709 \| good	35.723 \| good	0.7 \| good	4.325 \| good	0.143 \| good
2026-04-26T16:00:00.000Z	38 \| good	5.66 \| good	24.355 \| good	40.724 \| good	0.666 \| good	3.55 \| good	0.14 \| good
2026-04-26T17:00:00.000Z	41 \| good	5.839 \| good	25.682 \| good	43.978 \| good	0.632 \| good	2.776 \| good	0.138 \| good
2026-04-26T18:00:00.000Z	41 \| good	5.887 \| good	25.664 \| good	44.494 \| good	0.598 \| good	2.001 \| good	0.136 \| good
2026-04-26T19:00:00.000Z	41 \| good	6.491 \| good	29.039 \| good	44.417 \| good	0.572 \| good	1.685 \| good	0.133 \| good
2026-04-26T20:00:00.000Z	42 \| good	4.647 \| good	20.314 \| good	44.878 \| good	0.547 \| good	1.369 \| good	0.13 \| good
2026-04-26T21:00:00.000Z	44 \| good	3.569 \| good	15.453 \| good	47.818 \| good	0.521 \| good	1.053 \| good	0.128 \| good
2026-04-26T22:00:00.000Z	44 \| good	5.058 \| good	21.686 \| good	47.226 \| good	0.509 \| good	1.127 \| good	0.127 \| good
2026-04-26T23:00:00.000Z	44 \| good	5.666 \| good	24.269 \| good	47.211 \| good	0.496 \| good	1.201 \| good	0.127 \| good
2026-04-27T00:00:00.000Z	44 \| good	4.392 \| good	19.286 \| good	47.993 \| good	0.484 \| good	1.275 \| good	0.126 \| good
2026-04-27T01:00:00.000Z	44 \| good	3.616 \| good	15.977 \| good	47.892 \| good	0.5 \| good	1.998 \| good	0.128 \| good
2026-04-27T02:00:00.000Z	42 \| good	4.052 \| good	17.735 \| good	44.873 \| good	0.515 \| good	2.722 \| good	0.131 \| good
2026-04-27T03:00:00.000Z	37 \| good	4.855 \| good	21.271 \| good	39.859 \| good	0.531 \| good	3.445 \| good	0.133 \| good
2026-04-27T04:00:00.000Z	33 \| good	5.655 \| good	24.3 \| good	36.249 \| good	0.627 \| good	5.206 \| good	0.14 \| good
2026-04-27T05:00:00.000Z	33 \| good	5.775 \| good	25.541 \| good	33.986 \| good	0.722 \| good	6.967 \| good	0.148 \| good
2026-04-27T06:00:00.000Z	33 \| good	5.877 \| good	25.581 \| good	28.77 \| good	0.817 \| good	8.728 \| good	0.155 \| good
2026-04-27T07:00:00.000Z	27 \| good	5.36 \| good	23.407 \| good	26.156 \| good	0.819 \| good	8.956 \| good	0.157 \| good
2026-04-27T08:00:00.000Z	23 \| good	3.992 \| good	17.626 \| good	24.981 \| good	0.822 \| good	9.183 \| good	0.158 \| good
2026-04-27T09:00:00.000Z	22 \| good	4.029 \| good	17.668 \| good	20.617 \| good	0.824 \| good	9.41 \| good	0.16 \| good
2026-04-27T10:00:00.000Z	27 \| good	4.526 \| good	19.97 \| good	17.104 \| good	0.812 \| good	9.029 \| good	0.158 \| good
2026-04-27T11:00:00.000Z	27 \| good	5.086 \| good	22.118 \| good	16.101 \| good	0.8 \| good	8.649 \| good	0.155 \| good
2026-04-27T12:00:00.000Z	27 \| good	4.81 \| good	21.204 \| good	20.931 \| good	0.787 \| good	8.268 \| good	0.153 \| good
2026-04-27T13:00:00.000Z	27 \| good	4.823 \| good	21.191 \| good	15.601 \| good	0.817 \| good	8.076 \| good	0.157 \| good
2026-04-27T14:00:00.000Z	33 \| good	6.13 \| good	27.03 \| good	15.907 \| good	0.847 \| good	7.884 \| good	0.161 \| good
2026-04-27T15:00:00.000Z	33 \| good	6.232 \| good	27.667 \| good	30.975 \| good	0.877 \| good	7.692 \| good	0.165 \| good
2026-04-27T16:00:00.000Z	36 \| good	5.601 \| good	24.237 \| good	39.447 \| good	0.799 \| good	5.798 \| good	0.151 \| good
2026-04-27T17:00:00.000Z	38 \| good	7.078 \| good	31.125 \| good	37.406 \| good	0.721 \| good	3.904 \| good	0.137 \| good
2026-04-27T18:00:00.000Z	38 \| good	6.704 \| good	29.867 \| good	39.546 \| good	0.643 \| good	2.01 \| good	0.124 \| good
2026-04-27T19:00:00.000Z	39 \| good	7.071 \| good	31.291 \| good	42.229 \| good	0.635 \| good	1.758 \| good	0.122 \| good

Live air quality index in Palo Alto, California today

Major air pollutants in Palo Alto, California

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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Palo Alto, California air quality map: Stay updated on AQI near you

Air quality in nearby cities

Stanford, California

East Palo Alto, California

Menlo Park, California

North Fair Oaks, California

Los Altos, California

Mountain View City, California

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Frequently asked questions

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What is the PM2.5 level in Palo Alto, California at the moment?

What is the PM10 level in Palo Alto, California at the moment?

What is the carbon monoxide (CO) level in Palo Alto, California at the moment?

What is the sulfur dioxide (SO2) level in Palo Alto, California at the moment?

What is the ozone (O3) level in Palo Alto, California at the moment?

What is the nitrogen dioxide (NO2) level in Palo Alto, California at the moment?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What is the PM_2.5 level in Palo Alto, California at the moment?

What is the PM₁₀ level in Palo Alto, California at the moment?

What is the sulfur dioxide (SO₂) level in Palo Alto, California at the moment?

What is the ozone (O₃) level in Palo Alto, California at the moment?

What is the nitrogen dioxide (NO₂) level in Palo Alto, California at the moment?