Live air quality index in TamalpaisHomestead Valley, California today

Q: What is the PM2.5 level in Tamalpaishomestead Valley, California at the moment?

PM2.5 levels in Tamalpaishomestead Valley, California are currently 3.504 μg/m3.

Q: What is the PM10 level in Tamalpaishomestead Valley, California at the moment?

The PM10 concentration in Tamalpaishomestead Valley, California is 20.299 μg/m3 at the moment.

Stay updated with real-time air quality in TamalpaisHomestead Valley, 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

TamalpaisHomestead Valley, California

Last updated: ... (Local time)

Major air pollutants in TamalpaisHomestead Valley, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

3.50 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

20.30 μg/m³

155

255

425

605+

Ozone (O₃)

23.02 ppb

201

201+

Sulfur Dioxide (SO₂)

0.29 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

1.92 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.35 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

TamalpaisHomestead Valley, California

Get Live Pollen Counts

TamalpaisHomestead Valley, California

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Track live TamalpaisHomestead Valley, California air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-09-19T08:00:00.000Z	27 \| good	4.909 \| good	21.847 \| good	25.534 \| good	0.237 \| good	2.619 \| good	0.318 \| good
2026-09-19T09:00:00.000Z	27 \| good	4.909 \| good	21.847 \| good	25.534 \| good	0.238 \| good	2.619 \| good	0.318 \| good
2026-09-19T10:00:00.000Z	27 \| good	4.906 \| good	21.825 \| good	24.87 \| good	0.47 \| good	3.07 \| good	0.127 \| good
2026-09-19T11:00:00.000Z	27 \| good	4.581 \| good	22.811 \| good	24.87 \| good	0.454 \| good	3.422 \| good	0.127 \| good
2026-09-19T12:00:00.000Z	33 \| good	5.714 \| good	24.21 \| good	25.236 \| good	0.207 \| good	3.923 \| good	0.155 \| good
2026-09-19T13:00:00.000Z	27 \| good	4.517 \| good	19.302 \| good	18.887 \| good	0.316 \| good	1.736 \| good	0.289 \| good
2026-09-19T14:00:00.000Z	22 \| good	4.435 \| good	19.842 \| good	19.694 \| good	0.309 \| good	3.07 \| good	0.35 \| good
2026-09-19T15:00:00.000Z	22 \| good	4.102 \| good	17.247 \| good	18.018 \| good	0.212 \| good	2.517 \| good	0.379 \| good
2026-09-19T16:00:00.000Z	22 \| good	4.09 \| good	17.297 \| good	23.57 \| good	0.25 \| good	2.937 \| good	0.386 \| good
2026-09-19T17:00:00.000Z	33 \| good	5.763 \| good	24.999 \| good	25.29 \| good	0.322 \| good	3.123 \| good	0.408 \| good
2026-09-19T18:00:00.000Z	33 \| good	6.12 \| good	26.582 \| good	25.205 \| good	0.339 \| good	2.664 \| good	0.401 \| good
2026-09-19T19:00:00.000Z	33 \| good	6.156 \| good	26.721 \| good	25.881 \| good	0.302 \| good	2.268 \| good	0.401 \| good
2026-09-19T20:00:00.000Z	33 \| good	6.325 \| good	27.503 \| good	26.673 \| good	0.373 \| good	2.073 \| good	0.401 \| good
2026-09-19T21:00:00.000Z	38 \| good	6.709 \| good	29.163 \| good	27.213 \| good	0.382 \| good	1.938 \| good	0.401 \| good
2026-09-19T22:00:00.000Z	33 \| good	6.473 \| good	28.359 \| good	26.649 \| good	0.347 \| good	1.989 \| good	0.351 \| good
2026-09-19T23:00:00.000Z	44 \| good	7.833 \| good	33.831 \| good	27.429 \| good	0.331 \| good	1.775 \| good	0.347 \| good
2026-09-20T00:00:00.000Z	54 \| moderate	10.887 \| good	47.244 \| good	26.165 \| good	0.29 \| good	2.004 \| good	0.34 \| good
2026-09-20T01:00:00.000Z	52 \| moderate	10.087 \| good	43.72 \| good	25.912 \| good	0.345 \| good	2.069 \| good	0.34 \| good
2026-09-20T02:00:00.000Z	52 \| moderate	9.6 \| good	41.572 \| good	25.981 \| good	0.31 \| good	3.271 \| good	0.379 \| good
2026-09-20T03:00:00.000Z	38 \| good	7.32 \| good	31.919 \| good	29.717 \| good	0.248 \| good	3.467 \| good	0.133 \| good
2026-09-20T04:00:00.000Z	49 \| good	8.838 \| good	38.933 \| good	26.349 \| good	0.328 \| good	3.61 \| good	0.408 \| good
2026-09-20T05:00:00.000Z	44 \| good	7.694 \| good	34.192 \| good	26.845 \| good	0.334 \| good	3.859 \| good	0.357 \| good
2026-09-20T06:00:00.000Z	38 \| good	6.664 \| good	29.24 \| good	27.065 \| good	0.314 \| good	3.196 \| good	0.357 \| good
2026-09-20T07:00:00.000Z	33 \| good	6.281 \| good	27.766 \| good	25.991 \| good	0.254 \| good	2.973 \| good	0.375 \| good
2026-09-20T08:00:00.000Z	33 \| good	5.959 \| good	18.488 \| good	26.739 \| good	0.335 \| good	2.936 \| good	0.346 \| good
2026-09-20T09:00:00.000Z	38 \| good	6.823 \| good	29.666 \| good	26.942 \| good	0.348 \| good	2.493 \| good	0.346 \| good
2026-09-20T10:00:00.000Z	33 \| good	5.662 \| good	35.848 \| good	24.907 \| good	0.64 \| good	3.441 \| good	0.14 \| good
2026-09-20T11:00:00.000Z	38 \| good	7.311 \| good	26.766 \| good	23.314 \| good	0.553 \| good	3.631 \| good	0.14 \| good
2026-09-20T12:00:00.000Z	22 \| good	4.444 \| good	19.071 \| good	21.995 \| good	0.216 \| good	3.71 \| good	0.144 \| good
2026-09-20T13:00:00.000Z	22 \| good	4.235 \| good	20.963 \| good	24.311 \| good	0.298 \| good	1.284 \| good	0.288 \| good
2026-09-20T14:00:00.000Z	20 \| good	3.272 \| good	13.218 \| good	21.959 \| good	0.344 \| good	1.739 \| good	0.288 \| good
2026-09-20T15:00:00.000Z	24 \| good	3.377 \| good	18.746 \| good	26.291 \| good	0.31 \| good	1.615 \| good	0.319 \| good
2026-09-20T16:00:00.000Z	24 \| good	3.068 \| good	9.101 \| good	25.779 \| good	0.295 \| good	2.22 \| good	0.346 \| good
2026-09-20T17:00:00.000Z	27 \| good	4.582 \| good	20.925 \| good	24.668 \| good	0.345 \| good	2.518 \| good	0.346 \| good
2026-09-20T18:00:00.000Z	27 \| good	5.231 \| good	26.384 \| good	25.696 \| good	0.277 \| good	2.694 \| good	0.372 \| good
2026-09-20T19:00:00.000Z	33 \| good	5.793 \| good	23.078 \| good	24.973 \| good	0.36 \| good	2.854 \| good	0.346 \| good
2026-09-20T20:00:00.000Z	33 \| good	6.127 \| good	29.182 \| good	24.162 \| good	0.283 \| good	2.634 \| good	0.372 \| good
2026-09-20T21:00:00.000Z	27 \| good	5.38 \| good	22.355 \| good	24.773 \| good	0.36 \| good	2.56 \| good	0.346 \| good
2026-09-20T22:00:00.000Z	23 \| good	3.069 \| good	20.525 \| good	25.451 \| good	0.393 \| good	2.539 \| good	0.346 \| good
2026-09-20T23:00:00.000Z	25 \| good	2.306 \| good	16.72 \| good	27.459 \| good	0.398 \| good	2.503 \| good	0.372 \| good
2026-09-21T00:00:00.000Z	25 \| good	3.173 \| good	22.929 \| good	27.177 \| good	0.309 \| good	2.693 \| good	0.346 \| good
2026-09-21T01:00:00.000Z	27 \| good	5.092 \| good	13.148 \| good	25.921 \| good	0.348 \| good	2.836 \| good	0.372 \| good
2026-09-21T02:00:00.000Z	23 \| good	2.971 \| good	10.347 \| good	24.842 \| good	0.388 \| good	2.734 \| good	0.372 \| good
2026-09-21T03:00:00.000Z	33 \| good	6.082 \| good	26.943 \| good	30.241 \| good	0.238 \| good	3.995 \| good	0.148 \| good
2026-09-21T04:00:00.000Z	26 \| good	4.143 \| good	15.37 \| good	28.333 \| good	0.331 \| good	2.385 \| good	0.346 \| good
2026-09-21T05:00:00.000Z	22 \| good	4.038 \| good	16.536 \| good	22.075 \| good	0.295 \| good	2.347 \| good	0.346 \| good
2026-09-21T06:00:00.000Z	22 \| good	4.286 \| good	18.825 \| good	22.445 \| good	0.34 \| good	1.718 \| good	0.346 \| good
2026-09-21T07:00:00.000Z	22 \| good	3.504 \| good	20.299 \| good	23.016 \| good	0.294 \| good	1.921 \| good	0.346 \| good
2026-09-21T07:00:00.000Z	22 \| good	3.504 \| good	20.299 \| good	23.016 \| good	0.294 \| good	1.921 \| good	0.346 \| good
2026-09-21T08:00:00.000Z	27 \| good	3.824 \| good	16.936 \| good	28.802 \| good	0.231 \| good	3.996 \| good	0.149 \| good
2026-09-21T09:00:00.000Z	25 \| good	3.407 \| good	15.008 \| good	27.141 \| good	0.219 \| good	3.513 \| good	0.146 \| good
2026-09-21T10:00:00.000Z	25 \| good	2.733 \| good	11.098 \| good	27.134 \| good	0.21 \| good	3.38 \| good	0.146 \| good
2026-09-21T11:00:00.000Z	25 \| good	3.397 \| good	15.041 \| good	26.949 \| good	0.202 \| good	3.179 \| good	0.145 \| good
2026-09-21T12:00:00.000Z	27 \| good	4.595 \| good	20.021 \| good	28.302 \| good	0.2 \| good	2.982 \| good	0.143 \| good
2026-09-21T13:00:00.000Z	26 \| good	4.225 \| good	18.88 \| good	28.027 \| good	0.201 \| good	2.862 \| good	0.143 \| good
2026-09-21T14:00:00.000Z	26 \| good	3.662 \| good	16.073 \| good	28.064 \| good	0.207 \| good	2.741 \| good	0.141 \| good
2026-09-21T15:00:00.000Z	27 \| good	5.38 \| good	23.053 \| good	28.824 \| good	0.223 \| good	2.347 \| good	0.139 \| good
2026-09-21T16:00:00.000Z	33 \| good	5.649 \| good	24.178 \| good	28.625 \| good	0.24 \| good	1.688 \| good	0.137 \| good
2026-09-21T17:00:00.000Z	33 \| good	5.729 \| good	25.024 \| good	28.447 \| good	0.261 \| good	1.387 \| good	0.135 \| good
2026-09-21T18:00:00.000Z	28 \| good	5.15 \| good	22.108 \| good	29.745 \| good	0.287 \| good	1.237 \| good	0.134 \| good
2026-09-21T19:00:00.000Z	28 \| good	5.234 \| good	22.867 \| good	29.636 \| good	0.307 \| good	1.033 \| good	0.132 \| good
2026-09-21T20:00:00.000Z	27 \| good	4.364 \| good	19.008 \| good	28.832 \| good	0.312 \| good	0.934 \| good	0.13 \| good
2026-09-21T21:00:00.000Z	33 \| good	5.504 \| good	23.945 \| good	28.345 \| good	0.311 \| good	0.911 \| good	0.127 \| good
2026-09-21T22:00:00.000Z	33 \| good	6.241 \| good	27.944 \| good	28.526 \| good	0.31 \| good	0.918 \| good	0.125 \| good
2026-09-21T23:00:00.000Z	44 \| good	7.52 \| good	32.961 \| good	28.655 \| good	0.302 \| good	0.987 \| good	0.123 \| good
2026-09-22T00:00:00.000Z	38 \| good	6.854 \| good	30.075 \| good	29.753 \| good	0.287 \| good	1.15 \| good	0.121 \| good
2026-09-22T01:00:00.000Z	29 \| good	5.433 \| good	23.132 \| good	30.748 \| good	0.283 \| good	1.59 \| good	0.121 \| good
2026-09-22T02:00:00.000Z	33 \| good	5.893 \| good	25.311 \| good	27.392 \| good	0.288 \| good	2.261 \| good	0.122 \| good
2026-09-22T03:00:00.000Z	27 \| good	5.274 \| good	23.024 \| good	27.291 \| good	0.306 \| good	2.797 \| good	0.124 \| good
2026-09-22T04:00:00.000Z	25 \| good	3.977 \| good	17.265 \| good	27.248 \| good	0.312 \| good	3.34 \| good	0.125 \| good
2026-09-22T05:00:00.000Z	26 \| good	3.636 \| good	16.143 \| good	27.968 \| good	0.311 \| good	3.373 \| good	0.124 \| good
2026-09-22T06:00:00.000Z	25 \| good	3.909 \| good	17.132 \| good	27.381 \| good	0.308 \| good	3.675 \| good	0.125 \| good
2026-09-22T07:00:00.000Z	24 \| good	3.428 \| good	15.164 \| good	26.207 \| good	0.295 \| good	3.901 \| good	0.126 \| good
2026-09-22T08:00:00.000Z	23 \| good	3.327 \| good	14.136 \| good	24.896 \| good	0.284 \| good	3.833 \| good	0.125 \| good
2026-09-22T09:00:00.000Z	22 \| good	3.733 \| good	16.111 \| good	23.883 \| good	0.268 \| good	3.752 \| good	0.123 \| good
2026-09-22T10:00:00.000Z	22 \| good	3.51 \| good	15.776 \| good	23.129 \| good	0.257 \| good	3.509 \| good	0.121 \| good
2026-09-22T11:00:00.000Z	22 \| good	4.351 \| good	19.065 \| good	24.249 \| good	0.231 \| good	3.482 \| good	0.121 \| good
2026-09-22T12:00:00.000Z	24 \| good	2.895 \| good	12.038 \| good	25.769 \| good	0.218 \| good	3.408 \| good	0.12 \| good
2026-09-22T13:00:00.000Z	27 \| good	4.753 \| good	20.893 \| good	24.008 \| good	0.201 \| good	3.608 \| good	0.12 \| good
2026-09-22T14:00:00.000Z	22 \| good	3.967 \| good	17.097 \| good	23.015 \| good	0.192 \| good	3.95 \| good	0.122 \| good
2026-09-22T15:00:00.000Z	33 \| good	5.918 \| good	26.643 \| good	23.721 \| good	0.2 \| good	4.2 \| good	0.126 \| good
2026-09-22T16:00:00.000Z	33 \| good	6.086 \| good	26.908 \| good	25.095 \| good	0.243 \| good	2.907 \| good	0.121 \| good
2026-09-22T17:00:00.000Z	38 \| good	6.82 \| good	29.937 \| good	26.825 \| good	0.278 \| good	2.127 \| good	0.12 \| good
2026-09-22T18:00:00.000Z	38 \| good	6.869 \| good	30.681 \| good	28.439 \| good	0.317 \| good	1.668 \| good	0.121 \| good
2026-09-22T19:00:00.000Z	38 \| good	6.553 \| good	29.45 \| good	29.58 \| good	0.353 \| good	1.387 \| good	0.121 \| good
2026-09-22T20:00:00.000Z	28 \| good	4.612 \| good	20.07 \| good	30.12 \| good	0.367 \| good	1.219 \| good	0.12 \| good
2026-09-22T21:00:00.000Z	33 \| good	5.591 \| good	24.145 \| good	30.399 \| good	0.369 \| good	1.14 \| good	0.12 \| good
2026-09-22T22:00:00.000Z	33 \| good	6.135 \| good	26.927 \| good	31.219 \| good	0.365 \| good	1.201 \| good	0.119 \| good
2026-09-22T23:00:00.000Z	38 \| good	6.748 \| good	29.95 \| good	32.312 \| good	0.356 \| good	1.221 \| good	0.117 \| good
2026-09-23T00:00:00.000Z	33 \| good	5.954 \| good	26.807 \| good	31.973 \| good	0.322 \| good	1.352 \| good	0.116 \| good
2026-09-23T01:00:00.000Z	28 \| good	4.589 \| good	20.061 \| good	29.844 \| good	0.287 \| good	1.739 \| good	0.116 \| good
2026-09-23T02:00:00.000Z	27 \| good	5.445 \| good	23.226 \| good	26.657 \| good	0.268 \| good	3.254 \| good	0.122 \| good
2026-09-23T03:00:00.000Z	33 \| good	6.049 \| good	27.103 \| good	29.578 \| good	0.276 \| good	5.568 \| good	0.132 \| good
2026-09-23T04:00:00.000Z	38 \| good	7.22 \| good	32.114 \| good	28.68 \| good	0.287 \| good	6.873 \| good	0.138 \| good
2026-09-23T05:00:00.000Z	33 \| good	6.184 \| good	27.26 \| good	26.88 \| good	0.288 \| good	7.872 \| good	0.142 \| good
2026-09-23T06:00:00.000Z	33 \| good	5.627 \| good	24.115 \| good	25.467 \| good	0.286 \| good	9.018 \| good	0.148 \| good
2026-09-23T07:00:00.000Z	33 \| good	5.974 \| good	26.904 \| good	25.679 \| good	0.277 \| good	9.588 \| good	0.153 \| good

TamalpaisHomestead Valley

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TamalpaisHomestead Valley, California air quality map: Stay updated on AQI near you

0.21ppm

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 Tamalpaishomestead Valley, California?

The air quality information for Tamalpaishomestead Valley, California is updated every hour for accuracy.

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

In the past 24 hours, the air quality in Tamalpaishomestead Valley, California was at its worst at 11:00:00 on 2026-09-20.

When did Tamalpaishomestead Valley, California experience the best air quality in the last 24 hours?

In the last 24 hours, the best air quality in Tamalpaishomestead Valley, California was observed at 02:00:00 on 2026-09-20.

What is the AQI in Tamalpaishomestead Valley, California right now?

As of now, the AQI in Tamalpaishomestead Valley, California is 22, indicating Good conditions.

What is the most common type of pollution in Tamalpaishomestead Valley, California?

Tamalpaishomestead Valley, California air has the highest levels of PM2.5.

What should I do in case of poor air quality in Tamalpaishomestead Valley, California?

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

What is the PM_2.5 level in Tamalpaishomestead Valley, California at the moment?

PM_2.5 levels in Tamalpaishomestead Valley, California are currently 3.504 μg/m³.

What is the PM₁₀ level in Tamalpaishomestead Valley, California at the moment?

The PM₁₀ concentration in Tamalpaishomestead Valley, California is 20.299 μg/m³ at the moment.

What is the carbon monoxide (CO) level in Tamalpaishomestead Valley, California at the moment?

The current carbon monoxide (CO) concentration in Tamalpaishomestead Valley, California is 0.346 ppm.

What is the sulfur dioxide (SO₂) level in Tamalpaishomestead Valley, California at the moment?

Currently, Tamalpaishomestead Valley, California has a sulfur dioxide (SO₂) concentration of 0.294 ppb.

What is the ozone (O₃) level in Tamalpaishomestead Valley, California at the moment?

The current ozone (O₃) level in Tamalpaishomestead Valley, California at the moment is 23.016 ppm.

What is the nitrogen dioxide (NO₂) level in Tamalpaishomestead Valley, California at the moment?

Nitrogen dioxide (NO₂) level in Tamalpaishomestead Valley, California at the moment is 1.921 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-09-19T08:00:00.000Z	27 \| good	4.909 \| good	21.847 \| good	25.534 \| good	0.237 \| good	2.619 \| good	0.318 \| good
2026-09-19T09:00:00.000Z	27 \| good	4.909 \| good	21.847 \| good	25.534 \| good	0.238 \| good	2.619 \| good	0.318 \| good
2026-09-19T10:00:00.000Z	27 \| good	4.906 \| good	21.825 \| good	24.87 \| good	0.47 \| good	3.07 \| good	0.127 \| good
2026-09-19T11:00:00.000Z	27 \| good	4.581 \| good	22.811 \| good	24.87 \| good	0.454 \| good	3.422 \| good	0.127 \| good
2026-09-19T12:00:00.000Z	33 \| good	5.714 \| good	24.21 \| good	25.236 \| good	0.207 \| good	3.923 \| good	0.155 \| good
2026-09-19T13:00:00.000Z	27 \| good	4.517 \| good	19.302 \| good	18.887 \| good	0.316 \| good	1.736 \| good	0.289 \| good
2026-09-19T14:00:00.000Z	22 \| good	4.435 \| good	19.842 \| good	19.694 \| good	0.309 \| good	3.07 \| good	0.35 \| good
2026-09-19T15:00:00.000Z	22 \| good	4.102 \| good	17.247 \| good	18.018 \| good	0.212 \| good	2.517 \| good	0.379 \| good
2026-09-19T16:00:00.000Z	22 \| good	4.09 \| good	17.297 \| good	23.57 \| good	0.25 \| good	2.937 \| good	0.386 \| good
2026-09-19T17:00:00.000Z	33 \| good	5.763 \| good	24.999 \| good	25.29 \| good	0.322 \| good	3.123 \| good	0.408 \| good
2026-09-19T18:00:00.000Z	33 \| good	6.12 \| good	26.582 \| good	25.205 \| good	0.339 \| good	2.664 \| good	0.401 \| good
2026-09-19T19:00:00.000Z	33 \| good	6.156 \| good	26.721 \| good	25.881 \| good	0.302 \| good	2.268 \| good	0.401 \| good
2026-09-19T20:00:00.000Z	33 \| good	6.325 \| good	27.503 \| good	26.673 \| good	0.373 \| good	2.073 \| good	0.401 \| good
2026-09-19T21:00:00.000Z	38 \| good	6.709 \| good	29.163 \| good	27.213 \| good	0.382 \| good	1.938 \| good	0.401 \| good
2026-09-19T22:00:00.000Z	33 \| good	6.473 \| good	28.359 \| good	26.649 \| good	0.347 \| good	1.989 \| good	0.351 \| good
2026-09-19T23:00:00.000Z	44 \| good	7.833 \| good	33.831 \| good	27.429 \| good	0.331 \| good	1.775 \| good	0.347 \| good
2026-09-20T00:00:00.000Z	54 \| moderate	10.887 \| good	47.244 \| good	26.165 \| good	0.29 \| good	2.004 \| good	0.34 \| good
2026-09-20T01:00:00.000Z	52 \| moderate	10.087 \| good	43.72 \| good	25.912 \| good	0.345 \| good	2.069 \| good	0.34 \| good
2026-09-20T02:00:00.000Z	52 \| moderate	9.6 \| good	41.572 \| good	25.981 \| good	0.31 \| good	3.271 \| good	0.379 \| good
2026-09-20T03:00:00.000Z	38 \| good	7.32 \| good	31.919 \| good	29.717 \| good	0.248 \| good	3.467 \| good	0.133 \| good
2026-09-20T04:00:00.000Z	49 \| good	8.838 \| good	38.933 \| good	26.349 \| good	0.328 \| good	3.61 \| good	0.408 \| good
2026-09-20T05:00:00.000Z	44 \| good	7.694 \| good	34.192 \| good	26.845 \| good	0.334 \| good	3.859 \| good	0.357 \| good
2026-09-20T06:00:00.000Z	38 \| good	6.664 \| good	29.24 \| good	27.065 \| good	0.314 \| good	3.196 \| good	0.357 \| good
2026-09-20T07:00:00.000Z	33 \| good	6.281 \| good	27.766 \| good	25.991 \| good	0.254 \| good	2.973 \| good	0.375 \| good
2026-09-20T08:00:00.000Z	33 \| good	5.959 \| good	18.488 \| good	26.739 \| good	0.335 \| good	2.936 \| good	0.346 \| good
2026-09-20T09:00:00.000Z	38 \| good	6.823 \| good	29.666 \| good	26.942 \| good	0.348 \| good	2.493 \| good	0.346 \| good
2026-09-20T10:00:00.000Z	33 \| good	5.662 \| good	35.848 \| good	24.907 \| good	0.64 \| good	3.441 \| good	0.14 \| good
2026-09-20T11:00:00.000Z	38 \| good	7.311 \| good	26.766 \| good	23.314 \| good	0.553 \| good	3.631 \| good	0.14 \| good
2026-09-20T12:00:00.000Z	22 \| good	4.444 \| good	19.071 \| good	21.995 \| good	0.216 \| good	3.71 \| good	0.144 \| good
2026-09-20T13:00:00.000Z	22 \| good	4.235 \| good	20.963 \| good	24.311 \| good	0.298 \| good	1.284 \| good	0.288 \| good
2026-09-20T14:00:00.000Z	20 \| good	3.272 \| good	13.218 \| good	21.959 \| good	0.344 \| good	1.739 \| good	0.288 \| good
2026-09-20T15:00:00.000Z	24 \| good	3.377 \| good	18.746 \| good	26.291 \| good	0.31 \| good	1.615 \| good	0.319 \| good
2026-09-20T16:00:00.000Z	24 \| good	3.068 \| good	9.101 \| good	25.779 \| good	0.295 \| good	2.22 \| good	0.346 \| good
2026-09-20T17:00:00.000Z	27 \| good	4.582 \| good	20.925 \| good	24.668 \| good	0.345 \| good	2.518 \| good	0.346 \| good
2026-09-20T18:00:00.000Z	27 \| good	5.231 \| good	26.384 \| good	25.696 \| good	0.277 \| good	2.694 \| good	0.372 \| good
2026-09-20T19:00:00.000Z	33 \| good	5.793 \| good	23.078 \| good	24.973 \| good	0.36 \| good	2.854 \| good	0.346 \| good
2026-09-20T20:00:00.000Z	33 \| good	6.127 \| good	29.182 \| good	24.162 \| good	0.283 \| good	2.634 \| good	0.372 \| good
2026-09-20T21:00:00.000Z	27 \| good	5.38 \| good	22.355 \| good	24.773 \| good	0.36 \| good	2.56 \| good	0.346 \| good
2026-09-20T22:00:00.000Z	23 \| good	3.069 \| good	20.525 \| good	25.451 \| good	0.393 \| good	2.539 \| good	0.346 \| good
2026-09-20T23:00:00.000Z	25 \| good	2.306 \| good	16.72 \| good	27.459 \| good	0.398 \| good	2.503 \| good	0.372 \| good
2026-09-21T00:00:00.000Z	25 \| good	3.173 \| good	22.929 \| good	27.177 \| good	0.309 \| good	2.693 \| good	0.346 \| good
2026-09-21T01:00:00.000Z	27 \| good	5.092 \| good	13.148 \| good	25.921 \| good	0.348 \| good	2.836 \| good	0.372 \| good
2026-09-21T02:00:00.000Z	23 \| good	2.971 \| good	10.347 \| good	24.842 \| good	0.388 \| good	2.734 \| good	0.372 \| good
2026-09-21T03:00:00.000Z	33 \| good	6.082 \| good	26.943 \| good	30.241 \| good	0.238 \| good	3.995 \| good	0.148 \| good
2026-09-21T04:00:00.000Z	26 \| good	4.143 \| good	15.37 \| good	28.333 \| good	0.331 \| good	2.385 \| good	0.346 \| good
2026-09-21T05:00:00.000Z	22 \| good	4.038 \| good	16.536 \| good	22.075 \| good	0.295 \| good	2.347 \| good	0.346 \| good
2026-09-21T06:00:00.000Z	22 \| good	4.286 \| good	18.825 \| good	22.445 \| good	0.34 \| good	1.718 \| good	0.346 \| good
2026-09-21T07:00:00.000Z	22 \| good	3.504 \| good	20.299 \| good	23.016 \| good	0.294 \| good	1.921 \| good	0.346 \| good
2026-09-21T07:00:00.000Z	22 \| good	3.504 \| good	20.299 \| good	23.016 \| good	0.294 \| good	1.921 \| good	0.346 \| good
2026-09-21T08:00:00.000Z	27 \| good	3.824 \| good	16.936 \| good	28.802 \| good	0.231 \| good	3.996 \| good	0.149 \| good
2026-09-21T09:00:00.000Z	25 \| good	3.407 \| good	15.008 \| good	27.141 \| good	0.219 \| good	3.513 \| good	0.146 \| good
2026-09-21T10:00:00.000Z	25 \| good	2.733 \| good	11.098 \| good	27.134 \| good	0.21 \| good	3.38 \| good	0.146 \| good
2026-09-21T11:00:00.000Z	25 \| good	3.397 \| good	15.041 \| good	26.949 \| good	0.202 \| good	3.179 \| good	0.145 \| good
2026-09-21T12:00:00.000Z	27 \| good	4.595 \| good	20.021 \| good	28.302 \| good	0.2 \| good	2.982 \| good	0.143 \| good
2026-09-21T13:00:00.000Z	26 \| good	4.225 \| good	18.88 \| good	28.027 \| good	0.201 \| good	2.862 \| good	0.143 \| good
2026-09-21T14:00:00.000Z	26 \| good	3.662 \| good	16.073 \| good	28.064 \| good	0.207 \| good	2.741 \| good	0.141 \| good
2026-09-21T15:00:00.000Z	27 \| good	5.38 \| good	23.053 \| good	28.824 \| good	0.223 \| good	2.347 \| good	0.139 \| good
2026-09-21T16:00:00.000Z	33 \| good	5.649 \| good	24.178 \| good	28.625 \| good	0.24 \| good	1.688 \| good	0.137 \| good
2026-09-21T17:00:00.000Z	33 \| good	5.729 \| good	25.024 \| good	28.447 \| good	0.261 \| good	1.387 \| good	0.135 \| good
2026-09-21T18:00:00.000Z	28 \| good	5.15 \| good	22.108 \| good	29.745 \| good	0.287 \| good	1.237 \| good	0.134 \| good
2026-09-21T19:00:00.000Z	28 \| good	5.234 \| good	22.867 \| good	29.636 \| good	0.307 \| good	1.033 \| good	0.132 \| good
2026-09-21T20:00:00.000Z	27 \| good	4.364 \| good	19.008 \| good	28.832 \| good	0.312 \| good	0.934 \| good	0.13 \| good
2026-09-21T21:00:00.000Z	33 \| good	5.504 \| good	23.945 \| good	28.345 \| good	0.311 \| good	0.911 \| good	0.127 \| good
2026-09-21T22:00:00.000Z	33 \| good	6.241 \| good	27.944 \| good	28.526 \| good	0.31 \| good	0.918 \| good	0.125 \| good
2026-09-21T23:00:00.000Z	44 \| good	7.52 \| good	32.961 \| good	28.655 \| good	0.302 \| good	0.987 \| good	0.123 \| good
2026-09-22T00:00:00.000Z	38 \| good	6.854 \| good	30.075 \| good	29.753 \| good	0.287 \| good	1.15 \| good	0.121 \| good
2026-09-22T01:00:00.000Z	29 \| good	5.433 \| good	23.132 \| good	30.748 \| good	0.283 \| good	1.59 \| good	0.121 \| good
2026-09-22T02:00:00.000Z	33 \| good	5.893 \| good	25.311 \| good	27.392 \| good	0.288 \| good	2.261 \| good	0.122 \| good
2026-09-22T03:00:00.000Z	27 \| good	5.274 \| good	23.024 \| good	27.291 \| good	0.306 \| good	2.797 \| good	0.124 \| good
2026-09-22T04:00:00.000Z	25 \| good	3.977 \| good	17.265 \| good	27.248 \| good	0.312 \| good	3.34 \| good	0.125 \| good
2026-09-22T05:00:00.000Z	26 \| good	3.636 \| good	16.143 \| good	27.968 \| good	0.311 \| good	3.373 \| good	0.124 \| good
2026-09-22T06:00:00.000Z	25 \| good	3.909 \| good	17.132 \| good	27.381 \| good	0.308 \| good	3.675 \| good	0.125 \| good
2026-09-22T07:00:00.000Z	24 \| good	3.428 \| good	15.164 \| good	26.207 \| good	0.295 \| good	3.901 \| good	0.126 \| good
2026-09-22T08:00:00.000Z	23 \| good	3.327 \| good	14.136 \| good	24.896 \| good	0.284 \| good	3.833 \| good	0.125 \| good
2026-09-22T09:00:00.000Z	22 \| good	3.733 \| good	16.111 \| good	23.883 \| good	0.268 \| good	3.752 \| good	0.123 \| good
2026-09-22T10:00:00.000Z	22 \| good	3.51 \| good	15.776 \| good	23.129 \| good	0.257 \| good	3.509 \| good	0.121 \| good
2026-09-22T11:00:00.000Z	22 \| good	4.351 \| good	19.065 \| good	24.249 \| good	0.231 \| good	3.482 \| good	0.121 \| good
2026-09-22T12:00:00.000Z	24 \| good	2.895 \| good	12.038 \| good	25.769 \| good	0.218 \| good	3.408 \| good	0.12 \| good
2026-09-22T13:00:00.000Z	27 \| good	4.753 \| good	20.893 \| good	24.008 \| good	0.201 \| good	3.608 \| good	0.12 \| good
2026-09-22T14:00:00.000Z	22 \| good	3.967 \| good	17.097 \| good	23.015 \| good	0.192 \| good	3.95 \| good	0.122 \| good
2026-09-22T15:00:00.000Z	33 \| good	5.918 \| good	26.643 \| good	23.721 \| good	0.2 \| good	4.2 \| good	0.126 \| good
2026-09-22T16:00:00.000Z	33 \| good	6.086 \| good	26.908 \| good	25.095 \| good	0.243 \| good	2.907 \| good	0.121 \| good
2026-09-22T17:00:00.000Z	38 \| good	6.82 \| good	29.937 \| good	26.825 \| good	0.278 \| good	2.127 \| good	0.12 \| good
2026-09-22T18:00:00.000Z	38 \| good	6.869 \| good	30.681 \| good	28.439 \| good	0.317 \| good	1.668 \| good	0.121 \| good
2026-09-22T19:00:00.000Z	38 \| good	6.553 \| good	29.45 \| good	29.58 \| good	0.353 \| good	1.387 \| good	0.121 \| good
2026-09-22T20:00:00.000Z	28 \| good	4.612 \| good	20.07 \| good	30.12 \| good	0.367 \| good	1.219 \| good	0.12 \| good
2026-09-22T21:00:00.000Z	33 \| good	5.591 \| good	24.145 \| good	30.399 \| good	0.369 \| good	1.14 \| good	0.12 \| good
2026-09-22T22:00:00.000Z	33 \| good	6.135 \| good	26.927 \| good	31.219 \| good	0.365 \| good	1.201 \| good	0.119 \| good
2026-09-22T23:00:00.000Z	38 \| good	6.748 \| good	29.95 \| good	32.312 \| good	0.356 \| good	1.221 \| good	0.117 \| good
2026-09-23T00:00:00.000Z	33 \| good	5.954 \| good	26.807 \| good	31.973 \| good	0.322 \| good	1.352 \| good	0.116 \| good
2026-09-23T01:00:00.000Z	28 \| good	4.589 \| good	20.061 \| good	29.844 \| good	0.287 \| good	1.739 \| good	0.116 \| good
2026-09-23T02:00:00.000Z	27 \| good	5.445 \| good	23.226 \| good	26.657 \| good	0.268 \| good	3.254 \| good	0.122 \| good
2026-09-23T03:00:00.000Z	33 \| good	6.049 \| good	27.103 \| good	29.578 \| good	0.276 \| good	5.568 \| good	0.132 \| good
2026-09-23T04:00:00.000Z	38 \| good	7.22 \| good	32.114 \| good	28.68 \| good	0.287 \| good	6.873 \| good	0.138 \| good
2026-09-23T05:00:00.000Z	33 \| good	6.184 \| good	27.26 \| good	26.88 \| good	0.288 \| good	7.872 \| good	0.142 \| good
2026-09-23T06:00:00.000Z	33 \| good	5.627 \| good	24.115 \| good	25.467 \| good	0.286 \| good	9.018 \| good	0.148 \| good
2026-09-23T07:00:00.000Z	33 \| good	5.974 \| good	26.904 \| good	25.679 \| good	0.277 \| good	9.588 \| good	0.153 \| good

Live air quality index in TamalpaisHomestead Valley, California today

Major air pollutants in TamalpaisHomestead Valley, California

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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TamalpaisHomestead Valley, California

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Frequently asked questions

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What is the PM2.5 level in Tamalpaishomestead Valley, California at the moment?

What is the PM10 level in Tamalpaishomestead Valley, California at the moment?

What is the carbon monoxide (CO) level in Tamalpaishomestead Valley, California at the moment?

What is the sulfur dioxide (SO2) level in Tamalpaishomestead Valley, California at the moment?

What is the ozone (O3) level in Tamalpaishomestead Valley, California at the moment?

What is the nitrogen dioxide (NO2) level in Tamalpaishomestead Valley, 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 Tamalpaishomestead Valley, California at the moment?

What is the PM₁₀ level in Tamalpaishomestead Valley, California at the moment?

What is the sulfur dioxide (SO₂) level in Tamalpaishomestead Valley, California at the moment?

What is the ozone (O₃) level in Tamalpaishomestead Valley, California at the moment?

What is the nitrogen dioxide (NO₂) level in Tamalpaishomestead Valley, California at the moment?