What is the current concentration of PM10 in Mill Valley, California?

The current PM10 concentration at Mill Valley, California is 17.88 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Mill Valley, California?

The current sulfur dioxide (SO2) concentration at Mill Valley, California is 0.942 ppb.

What is the current concentration of ozone (O3) in Mill Valley, California?

The current ozone (O3) concentration at Mill Valley, California is 44.047 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Mill Valley, California?

The current nitrogen dioxide (NO2) concentration at Mill Valley, California is 4.323 ppb.

Mill Valley, California live air quality index now

Q: What is the current concentration of PM2.5 in Mill Valley, California?

The current PM2.5 concentration at Mill Valley, California is 4.25 μg/m3.

Stay updated with real-time air quality in Mill 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

Mill Valley, California

Last updated: ... (Local time)

Major air pollutants in Mill Valley, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

4.25 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

17.88 μg/m³

155

255

425

605+

Ozone (O₃)

44.05 ppb

201

201+

Sulfur Dioxide (SO₂)

0.94 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.32 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.24 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

High

Mill Valley, California

Get Live Pollen Counts

Mill Valley, California

Scroll To Air Quality Map

Track live Mill Valley, California air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-04-17T02:00:00.000Z	37 \| good	5.835 \| good	25.915 \| good	39.993 \| good	0.432 \| good	3.271 \| good	0.219 \| good
2026-04-17T03:00:00.000Z	32 \| good	3.545 \| good	15.46 \| good	34.665 \| good	0.326 \| good	4.48 \| good	0.165 \| good
2026-04-17T04:00:00.000Z	54 \| moderate	10.625 \| good	47.465 \| good	36.257 \| good	0.372 \| good	4.667 \| good	0.219 \| good
2026-04-17T05:00:00.000Z	54 \| moderate	10.54 \| good	47.207 \| good	35.733 \| good	0.371 \| good	6.167 \| good	0.227 \| good
2026-04-17T06:00:00.000Z	52 \| moderate	10.4 \| good	48.051 \| good	32.032 \| good	0.41 \| good	6.176 \| good	0.227 \| good
2026-04-17T07:00:00.000Z	44 \| good	8.16 \| good	35.77 \| good	28.758 \| good	0.466 \| good	7.857 \| good	0.292 \| good
2026-04-17T08:00:00.000Z	28 \| good	3.507 \| good	15.615 \| good	29.773 \| good	0.388 \| good	2.74 \| good	0.2 \| good
2026-04-17T09:00:00.000Z	36 \| good	3.107 \| good	12.331 \| good	38.658 \| good	0.343 \| good	2.939 \| good	0.2 \| good
2026-04-17T10:00:00.000Z	37 \| good	2.591 \| good	10.78 \| good	40.076 \| good	0.369 \| good	1.747 \| good	0.2 \| good
2026-04-17T11:00:00.000Z	37 \| good	0.818 \| good	3.467 \| good	40.224 \| good	0.369 \| good	2.815 \| good	0.2 \| good
2026-04-17T12:00:00.000Z	38 \| good	1.486 \| good	7.903 \| good	40.591 \| good	0.369 \| good	2.756 \| good	0.2 \| good
2026-04-17T13:00:00.000Z	37 \| good	1.604 \| good	7.097 \| good	39.682 \| good	0.397 \| good	2.968 \| good	0.2 \| good
2026-04-17T14:00:00.000Z	30 \| good	1.259 \| good	5.662 \| good	31.623 \| good	0.384 \| good	22.04 \| good	0.501 \| good
2026-04-17T15:00:00.000Z	24 \| good	3.282 \| good	14.362 \| good	26.309 \| good	0.407 \| good	22.722 \| good	0.523 \| good
2026-04-17T16:00:00.000Z	25 \| good	2.984 \| good	12.731 \| good	26.726 \| good	0.532 \| good	11.533 \| good	0.373 \| good
2026-04-17T17:00:00.000Z	28 \| good	2.292 \| good	9.792 \| good	30.447 \| good	0.679 \| good	2.084 \| good	0.212 \| good
2026-04-17T18:00:00.000Z	32 \| good	1.831 \| good	7.783 \| good	34.687 \| good	0.664 \| good	2.322 \| good	0.203 \| good
2026-04-17T19:00:00.000Z	33 \| good	1.634 \| good	7.215 \| good	36.398 \| good	0.533 \| good	2.116 \| good	0.21 \| good
2026-04-17T20:00:00.000Z	37 \| good	1.154 \| good	5.149 \| good	40.132 \| good	0.475 \| good	2.141 \| good	0.21 \| good
2026-04-17T21:00:00.000Z	42 \| good	0.869 \| good	3.478 \| good	44.88 \| good	0.546 \| good	2.291 \| good	0.22 \| good
2026-04-17T22:00:00.000Z	44 \| good	1.275 \| good	4.686 \| good	47.297 \| good	0.62 \| good	2.988 \| good	0.22 \| good
2026-04-17T23:00:00.000Z	44 \| good	1.628 \| good	6.635 \| good	47.933 \| good	1.349 \| good	3.236 \| good	0.22 \| good
2026-04-18T00:00:00.000Z	43 \| good	1.396 \| good	6.35 \| good	45.658 \| good	0.844 \| good	4.024 \| good	0.22 \| good
2026-04-18T01:00:00.000Z	40 \| good	2.168 \| good	9.516 \| good	42.968 \| good	3.472 \| good	4.603 \| good	0.21 \| good
2026-04-18T02:00:00.000Z	40 \| good	5.015 \| good	22.57 \| good	43.382 \| good	1.39 \| good	4.562 \| good	0.222 \| good
2026-04-18T03:00:00.000Z	37 \| good	6.232 \| good	28.222 \| good	39.705 \| good	0.54 \| good	4.607 \| good	0.222 \| good
2026-04-18T04:00:00.000Z	44 \| good	7.834 \| good	34.829 \| good	38.887 \| good	0.585 \| good	4.054 \| good	0.237 \| good
2026-04-18T05:00:00.000Z	44 \| good	7.533 \| good	33.44 \| good	36.016 \| good	0.513 \| good	4.505 \| good	0.236 \| good
2026-04-18T06:00:00.000Z	38 \| good	7.425 \| good	32.595 \| good	35.38 \| good	0.503 \| good	4.675 \| good	0.236 \| good
2026-04-18T07:00:00.000Z	38 \| good	6.629 \| good	28.862 \| good	34.506 \| good	0.457 \| good	7.097 \| good	0.31 \| good
2026-04-18T08:00:00.000Z	31 \| good	4.859 \| good	21.943 \| good	33.777 \| good	0.481 \| good	5.525 \| good	0.31 \| good
2026-04-18T09:00:00.000Z	31 \| good	4.926 \| good	21.557 \| good	33.819 \| good	0.479 \| good	5.561 \| good	0.31 \| good
2026-04-18T10:00:00.000Z	31 \| good	4.872 \| good	21.9 \| good	33.882 \| good	0.528 \| good	5.784 \| good	0.208 \| good
2026-04-18T11:00:00.000Z	31 \| good	3.154 \| good	17.67 \| good	33.91 \| good	0.512 \| good	5.94 \| good	0.174 \| good
2026-04-18T12:00:00.000Z	38 \| good	2.913 \| good	10.148 \| good	40.999 \| good	0.236 \| good	5.031 \| good	0.426 \| good
2026-04-18T13:00:00.000Z	27 \| good	4.626 \| good	19.807 \| good	16.035 \| good	0.762 \| good	8.603 \| good	0.32 \| good
2026-04-18T14:00:00.000Z	27 \| good	4.578 \| good	20.846 \| good	17.881 \| good	0.52 \| good	12.286 \| good	0.397 \| good
2026-04-18T15:00:00.000Z	27 \| good	4.71 \| good	20.683 \| good	18.299 \| good	0.51 \| good	15.056 \| good	0.568 \| good
2026-04-18T16:00:00.000Z	33 \| good	6.409 \| good	27.707 \| good	15.676 \| good	0.637 \| good	8.868 \| good	0.39 \| good
2026-04-18T17:00:00.000Z	38 \| good	6.992 \| good	31.274 \| good	19.626 \| good	0.681 \| good	6.53 \| good	0.327 \| good
2026-04-18T18:00:00.000Z	38 \| good	6.617 \| good	28.533 \| good	20.328 \| good	0.739 \| good	5.417 \| good	0.318 \| good
2026-04-18T19:00:00.000Z	33 \| good	5.755 \| good	25.584 \| good	21.205 \| good	0.755 \| good	4.513 \| good	0.312 \| good
2026-04-18T20:00:00.000Z	27 \| good	4.909 \| good	21.365 \| good	26.912 \| good	0.79 \| good	3.315 \| good	0.237 \| good
2026-04-18T21:00:00.000Z	32 \| good	4.291 \| good	18.813 \| good	35.33 \| good	0.811 \| good	3.337 \| good	0.237 \| good
2026-04-18T22:00:00.000Z	35 \| good	4.057 \| good	16.59 \| good	38.038 \| good	1.191 \| good	3.102 \| good	0.237 \| good
2026-04-18T23:00:00.000Z	38 \| good	3.623 \| good	16.14 \| good	41.115 \| good	0.692 \| good	3.558 \| good	0.229 \| good
2026-04-19T00:00:00.000Z	40 \| good	3.164 \| good	13.863 \| good	43.268 \| good	0.615 \| good	4.131 \| good	0.237 \| good
2026-04-19T01:00:00.000Z	41 \| good	4.25 \| good	17.88 \| good	44.047 \| good	0.942 \| good	4.323 \| good	0.239 \| good
2026-04-19T01:00:00.000Z	41 \| good	4.25 \| good	17.88 \| good	44.047 \| good	0.942 \| good	4.323 \| good	0.239 \| good
2026-04-19T02:00:00.000Z	41 \| good	6.882 \| good	30.442 \| good	43.863 \| good	1.104 \| good	7.996 \| good	0.178 \| good
2026-04-19T03:00:00.000Z	37 \| good	4.38 \| good	19.117 \| good	39.753 \| good	1.027 \| good	10.378 \| good	0.192 \| good
2026-04-19T04:00:00.000Z	35 \| good	3.208 \| good	13.695 \| good	37.527 \| good	0.989 \| good	11.494 \| good	0.208 \| good
2026-04-19T05:00:00.000Z	35 \| good	2.837 \| good	11.884 \| good	37.973 \| good	0.951 \| good	12.609 \| good	0.224 \| good
2026-04-19T06:00:00.000Z	34 \| good	2.843 \| good	11.444 \| good	36.963 \| good	0.912 \| good	13.725 \| good	0.24 \| good
2026-04-19T07:00:00.000Z	35 \| good	1.93 \| good	8.082 \| good	37.638 \| good	0.847 \| good	12.901 \| good	0.232 \| good
2026-04-19T08:00:00.000Z	33 \| good	2.011 \| good	8.213 \| good	36.054 \| good	0.782 \| good	12.078 \| good	0.224 \| good
2026-04-19T09:00:00.000Z	32 \| good	2.043 \| good	8.173 \| good	34.592 \| good	0.717 \| good	11.254 \| good	0.216 \| good
2026-04-19T10:00:00.000Z	30 \| good	2.204 \| good	9.002 \| good	31.807 \| good	0.694 \| good	10.539 \| good	0.207 \| good
2026-04-19T11:00:00.000Z	27 \| good	1.365 \| good	5.516 \| good	29.357 \| good	0.67 \| good	9.824 \| good	0.199 \| good
2026-04-19T12:00:00.000Z	28 \| good	1.408 \| good	5.893 \| good	30.254 \| good	0.646 \| good	9.109 \| good	0.19 \| good
2026-04-19T13:00:00.000Z	19 \| good	2.822 \| good	11.584 \| good	19.826 \| good	0.652 \| good	8.26 \| good	0.186 \| good
2026-04-19T14:00:00.000Z	20 \| good	2.751 \| good	11.24 \| good	22.077 \| good	0.658 \| good	7.411 \| good	0.181 \| good
2026-04-19T15:00:00.000Z	26 \| good	3.874 \| good	17.047 \| good	27.751 \| good	0.664 \| good	6.563 \| good	0.177 \| good
2026-04-19T16:00:00.000Z	30 \| good	3.763 \| good	16.543 \| good	32.444 \| good	0.789 \| good	5.175 \| good	0.163 \| good
2026-04-19T17:00:00.000Z	32 \| good	3.56 \| good	15.844 \| good	34.605 \| good	0.914 \| good	3.787 \| good	0.15 \| good
2026-04-19T18:00:00.000Z	32 \| good	2.935 \| good	11.96 \| good	34.917 \| good	1.039 \| good	2.399 \| good	0.136 \| good
2026-04-19T19:00:00.000Z	34 \| good	2.354 \| good	9.559 \| good	36.52 \| good	0.993 \| good	2.049 \| good	0.133 \| good
2026-04-19T20:00:00.000Z	34 \| good	2.725 \| good	11.365 \| good	37.093 \| good	0.947 \| good	1.699 \| good	0.13 \| good
2026-04-19T21:00:00.000Z	34 \| good	2.388 \| good	9.902 \| good	36.633 \| good	0.901 \| good	1.349 \| good	0.126 \| good
2026-04-19T22:00:00.000Z	31 \| good	1.767 \| good	7.323 \| good	34.417 \| good	0.857 \| good	1.402 \| good	0.127 \| good
2026-04-19T23:00:00.000Z	32 \| good	2.321 \| good	9.395 \| good	34.945 \| good	0.813 \| good	1.455 \| good	0.127 \| good
2026-04-20T00:00:00.000Z	31 \| good	2.263 \| good	9.387 \| good	33.31 \| good	0.768 \| good	1.508 \| good	0.127 \| good
2026-04-20T01:00:00.000Z	31 \| good	3.644 \| good	15.99 \| good	34.234 \| good	0.779 \| good	2.372 \| good	0.133 \| good
2026-04-20T02:00:00.000Z	31 \| good	5.398 \| good	23.599 \| good	33.647 \| good	0.79 \| good	3.237 \| good	0.138 \| good
2026-04-20T03:00:00.000Z	31 \| good	4.712 \| good	20.569 \| good	33.346 \| good	0.801 \| good	4.101 \| good	0.144 \| good
2026-04-20T04:00:00.000Z	31 \| good	2.995 \| good	12.775 \| good	34.097 \| good	0.833 \| good	5.017 \| good	0.149 \| good
2026-04-20T05:00:00.000Z	30 \| good	1.77 \| good	7.203 \| good	31.903 \| good	0.865 \| good	5.932 \| good	0.155 \| good
2026-04-20T06:00:00.000Z	31 \| good	1.644 \| good	6.76 \| good	32.93 \| good	0.897 \| good	6.848 \| good	0.16 \| good
2026-04-20T07:00:00.000Z	31 \| good	1.704 \| good	7.085 \| good	34.389 \| good	0.896 \| good	6.924 \| good	0.16 \| good
2026-04-20T08:00:00.000Z	31 \| good	2.816 \| good	11.526 \| good	33.737 \| good	0.895 \| good	7 \| good	0.161 \| good
2026-04-20T09:00:00.000Z	28 \| good	2.851 \| good	11.918 \| good	30.035 \| good	0.894 \| good	7.077 \| good	0.161 \| good
2026-04-20T10:00:00.000Z	24 \| good	3.291 \| good	13.848 \| good	26.099 \| good	0.887 \| good	6.308 \| good	0.156 \| good
2026-04-20T11:00:00.000Z	27 \| good	4.516 \| good	19.47 \| good	22.022 \| good	0.879 \| good	5.539 \| good	0.151 \| good
2026-04-20T12:00:00.000Z	22 \| good	3.921 \| good	17.125 \| good	19.811 \| good	0.872 \| good	4.77 \| good	0.146 \| good
2026-04-20T13:00:00.000Z	16 \| good	3.355 \| good	14.453 \| good	15.283 \| good	0.851 \| good	4.75 \| good	0.146 \| good
2026-04-20T14:00:00.000Z	22 \| good	3.604 \| good	15.837 \| good	13.752 \| good	0.83 \| good	4.731 \| good	0.146 \| good
2026-04-20T15:00:00.000Z	17 \| good	3.099 \| good	13.368 \| good	18.032 \| good	0.809 \| good	4.712 \| good	0.146 \| good
2026-04-20T16:00:00.000Z	27 \| good	4.866 \| good	21.098 \| good	24.848 \| good	0.812 \| good	4.764 \| good	0.147 \| good
2026-04-20T17:00:00.000Z	33 \| good	5.984 \| good	26.338 \| good	25.886 \| good	0.815 \| good	4.816 \| good	0.147 \| good
2026-04-20T18:00:00.000Z	30 \| good	5.049 \| good	21.91 \| good	32.296 \| good	0.819 \| good	4.868 \| good	0.148 \| good
2026-04-20T19:00:00.000Z	33 \| good	2.963 \| good	12.141 \| good	35.771 \| good	0.737 \| good	4.099 \| good	0.142 \| good
2026-04-20T20:00:00.000Z	34 \| good	2.371 \| good	9.707 \| good	36.785 \| good	0.655 \| good	3.33 \| good	0.136 \| good
2026-04-20T21:00:00.000Z	33 \| good	1.732 \| good	7.038 \| good	36.048 \| good	0.574 \| good	2.562 \| good	0.13 \| good
2026-04-20T22:00:00.000Z	31 \| good	1.721 \| good	7.093 \| good	33.594 \| good	0.54 \| good	2.464 \| good	0.129 \| good
2026-04-20T23:00:00.000Z	30 \| good	2.23 \| good	9.107 \| good	31.8 \| good	0.506 \| good	2.367 \| good	0.127 \| good
2026-04-21T00:00:00.000Z	36 \| good	6.132 \| good	9.263 \| good	39.083 \| good	0.464 \| good	2.234 \| good	0.125 \| good
2026-04-21T01:00:00.000Z	31 \| good	3.62 \| good	15.916 \| good	33.448 \| good	0.512 \| good	3.222 \| good	0.132 \| good

Mill Valley

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Mill Valley, California air quality map: Track AQI near you

0.30ppm

How accurate is California, USA air quality data?

Air quality data and pollutant measurements for California, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.

Source: Ambee Data Sources

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Frequently asked questions

How often is the air quality data for Mill Valley, California updated?

The air quality for Mill Valley, California is updated every hour.

When was the worst air quality at Mill Valley, California in the last 24 hrs?

The worst air quality in Mill Valley, California in the last 24 hours was observed at 05:00:00 on 2026-04-18.

When was the best air quality at Mill Valley, California in the last 24 hrs?

In the last 24 hrs, the best air quality in Mill Valley, California was observed at 08:00:00 on 2026-04-18.

What is the current air quality in Mill Valley, California?

The current air quality in Mill Valley, California is 41, categorized as Good based on real-time data.

What pollutant is the most common in Mill Valley, California?

The most common pollutant in Mill Valley, California is O3.

What should I do if the air quality in Mill Valley, California is poor?

If the air quality in Mill Valley, California is poor, consider staying indoors and wearing a mask to protect yourself.

What is the current concentration of PM_2.5 in Mill Valley, California?

The current PM_2.5 concentration at Mill Valley, California is 4.25 μg/m³.

What is the current concentration of PM₁₀ in Mill Valley, California?

The current PM₁₀ concentration at Mill Valley, California is 17.88 μg/m³.

What is the current concentration of carbon monoxide (CO) in Mill Valley, California?

The current carbon monoxide (CO) concentration at Mill Valley, California is 0.239 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Mill Valley, California?

The current sulfur dioxide (SO₂) concentration at Mill Valley, California is 0.942 ppb.

What is the current concentration of ozone (O₃) in Mill Valley, California?

The current ozone (O₃) concentration at Mill Valley, California is 44.047 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Mill Valley, California?

The current nitrogen dioxide (NO₂) concentration at Mill Valley, California is 4.323 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-04-17T02:00:00.000Z	37 \| good	5.835 \| good	25.915 \| good	39.993 \| good	0.432 \| good	3.271 \| good	0.219 \| good
2026-04-17T03:00:00.000Z	32 \| good	3.545 \| good	15.46 \| good	34.665 \| good	0.326 \| good	4.48 \| good	0.165 \| good
2026-04-17T04:00:00.000Z	54 \| moderate	10.625 \| good	47.465 \| good	36.257 \| good	0.372 \| good	4.667 \| good	0.219 \| good
2026-04-17T05:00:00.000Z	54 \| moderate	10.54 \| good	47.207 \| good	35.733 \| good	0.371 \| good	6.167 \| good	0.227 \| good
2026-04-17T06:00:00.000Z	52 \| moderate	10.4 \| good	48.051 \| good	32.032 \| good	0.41 \| good	6.176 \| good	0.227 \| good
2026-04-17T07:00:00.000Z	44 \| good	8.16 \| good	35.77 \| good	28.758 \| good	0.466 \| good	7.857 \| good	0.292 \| good
2026-04-17T08:00:00.000Z	28 \| good	3.507 \| good	15.615 \| good	29.773 \| good	0.388 \| good	2.74 \| good	0.2 \| good
2026-04-17T09:00:00.000Z	36 \| good	3.107 \| good	12.331 \| good	38.658 \| good	0.343 \| good	2.939 \| good	0.2 \| good
2026-04-17T10:00:00.000Z	37 \| good	2.591 \| good	10.78 \| good	40.076 \| good	0.369 \| good	1.747 \| good	0.2 \| good
2026-04-17T11:00:00.000Z	37 \| good	0.818 \| good	3.467 \| good	40.224 \| good	0.369 \| good	2.815 \| good	0.2 \| good
2026-04-17T12:00:00.000Z	38 \| good	1.486 \| good	7.903 \| good	40.591 \| good	0.369 \| good	2.756 \| good	0.2 \| good
2026-04-17T13:00:00.000Z	37 \| good	1.604 \| good	7.097 \| good	39.682 \| good	0.397 \| good	2.968 \| good	0.2 \| good
2026-04-17T14:00:00.000Z	30 \| good	1.259 \| good	5.662 \| good	31.623 \| good	0.384 \| good	22.04 \| good	0.501 \| good
2026-04-17T15:00:00.000Z	24 \| good	3.282 \| good	14.362 \| good	26.309 \| good	0.407 \| good	22.722 \| good	0.523 \| good
2026-04-17T16:00:00.000Z	25 \| good	2.984 \| good	12.731 \| good	26.726 \| good	0.532 \| good	11.533 \| good	0.373 \| good
2026-04-17T17:00:00.000Z	28 \| good	2.292 \| good	9.792 \| good	30.447 \| good	0.679 \| good	2.084 \| good	0.212 \| good
2026-04-17T18:00:00.000Z	32 \| good	1.831 \| good	7.783 \| good	34.687 \| good	0.664 \| good	2.322 \| good	0.203 \| good
2026-04-17T19:00:00.000Z	33 \| good	1.634 \| good	7.215 \| good	36.398 \| good	0.533 \| good	2.116 \| good	0.21 \| good
2026-04-17T20:00:00.000Z	37 \| good	1.154 \| good	5.149 \| good	40.132 \| good	0.475 \| good	2.141 \| good	0.21 \| good
2026-04-17T21:00:00.000Z	42 \| good	0.869 \| good	3.478 \| good	44.88 \| good	0.546 \| good	2.291 \| good	0.22 \| good
2026-04-17T22:00:00.000Z	44 \| good	1.275 \| good	4.686 \| good	47.297 \| good	0.62 \| good	2.988 \| good	0.22 \| good
2026-04-17T23:00:00.000Z	44 \| good	1.628 \| good	6.635 \| good	47.933 \| good	1.349 \| good	3.236 \| good	0.22 \| good
2026-04-18T00:00:00.000Z	43 \| good	1.396 \| good	6.35 \| good	45.658 \| good	0.844 \| good	4.024 \| good	0.22 \| good
2026-04-18T01:00:00.000Z	40 \| good	2.168 \| good	9.516 \| good	42.968 \| good	3.472 \| good	4.603 \| good	0.21 \| good
2026-04-18T02:00:00.000Z	40 \| good	5.015 \| good	22.57 \| good	43.382 \| good	1.39 \| good	4.562 \| good	0.222 \| good
2026-04-18T03:00:00.000Z	37 \| good	6.232 \| good	28.222 \| good	39.705 \| good	0.54 \| good	4.607 \| good	0.222 \| good
2026-04-18T04:00:00.000Z	44 \| good	7.834 \| good	34.829 \| good	38.887 \| good	0.585 \| good	4.054 \| good	0.237 \| good
2026-04-18T05:00:00.000Z	44 \| good	7.533 \| good	33.44 \| good	36.016 \| good	0.513 \| good	4.505 \| good	0.236 \| good
2026-04-18T06:00:00.000Z	38 \| good	7.425 \| good	32.595 \| good	35.38 \| good	0.503 \| good	4.675 \| good	0.236 \| good
2026-04-18T07:00:00.000Z	38 \| good	6.629 \| good	28.862 \| good	34.506 \| good	0.457 \| good	7.097 \| good	0.31 \| good
2026-04-18T08:00:00.000Z	31 \| good	4.859 \| good	21.943 \| good	33.777 \| good	0.481 \| good	5.525 \| good	0.31 \| good
2026-04-18T09:00:00.000Z	31 \| good	4.926 \| good	21.557 \| good	33.819 \| good	0.479 \| good	5.561 \| good	0.31 \| good
2026-04-18T10:00:00.000Z	31 \| good	4.872 \| good	21.9 \| good	33.882 \| good	0.528 \| good	5.784 \| good	0.208 \| good
2026-04-18T11:00:00.000Z	31 \| good	3.154 \| good	17.67 \| good	33.91 \| good	0.512 \| good	5.94 \| good	0.174 \| good
2026-04-18T12:00:00.000Z	38 \| good	2.913 \| good	10.148 \| good	40.999 \| good	0.236 \| good	5.031 \| good	0.426 \| good
2026-04-18T13:00:00.000Z	27 \| good	4.626 \| good	19.807 \| good	16.035 \| good	0.762 \| good	8.603 \| good	0.32 \| good
2026-04-18T14:00:00.000Z	27 \| good	4.578 \| good	20.846 \| good	17.881 \| good	0.52 \| good	12.286 \| good	0.397 \| good
2026-04-18T15:00:00.000Z	27 \| good	4.71 \| good	20.683 \| good	18.299 \| good	0.51 \| good	15.056 \| good	0.568 \| good
2026-04-18T16:00:00.000Z	33 \| good	6.409 \| good	27.707 \| good	15.676 \| good	0.637 \| good	8.868 \| good	0.39 \| good
2026-04-18T17:00:00.000Z	38 \| good	6.992 \| good	31.274 \| good	19.626 \| good	0.681 \| good	6.53 \| good	0.327 \| good
2026-04-18T18:00:00.000Z	38 \| good	6.617 \| good	28.533 \| good	20.328 \| good	0.739 \| good	5.417 \| good	0.318 \| good
2026-04-18T19:00:00.000Z	33 \| good	5.755 \| good	25.584 \| good	21.205 \| good	0.755 \| good	4.513 \| good	0.312 \| good
2026-04-18T20:00:00.000Z	27 \| good	4.909 \| good	21.365 \| good	26.912 \| good	0.79 \| good	3.315 \| good	0.237 \| good
2026-04-18T21:00:00.000Z	32 \| good	4.291 \| good	18.813 \| good	35.33 \| good	0.811 \| good	3.337 \| good	0.237 \| good
2026-04-18T22:00:00.000Z	35 \| good	4.057 \| good	16.59 \| good	38.038 \| good	1.191 \| good	3.102 \| good	0.237 \| good
2026-04-18T23:00:00.000Z	38 \| good	3.623 \| good	16.14 \| good	41.115 \| good	0.692 \| good	3.558 \| good	0.229 \| good
2026-04-19T00:00:00.000Z	40 \| good	3.164 \| good	13.863 \| good	43.268 \| good	0.615 \| good	4.131 \| good	0.237 \| good
2026-04-19T01:00:00.000Z	41 \| good	4.25 \| good	17.88 \| good	44.047 \| good	0.942 \| good	4.323 \| good	0.239 \| good
2026-04-19T01:00:00.000Z	41 \| good	4.25 \| good	17.88 \| good	44.047 \| good	0.942 \| good	4.323 \| good	0.239 \| good
2026-04-19T02:00:00.000Z	41 \| good	6.882 \| good	30.442 \| good	43.863 \| good	1.104 \| good	7.996 \| good	0.178 \| good
2026-04-19T03:00:00.000Z	37 \| good	4.38 \| good	19.117 \| good	39.753 \| good	1.027 \| good	10.378 \| good	0.192 \| good
2026-04-19T04:00:00.000Z	35 \| good	3.208 \| good	13.695 \| good	37.527 \| good	0.989 \| good	11.494 \| good	0.208 \| good
2026-04-19T05:00:00.000Z	35 \| good	2.837 \| good	11.884 \| good	37.973 \| good	0.951 \| good	12.609 \| good	0.224 \| good
2026-04-19T06:00:00.000Z	34 \| good	2.843 \| good	11.444 \| good	36.963 \| good	0.912 \| good	13.725 \| good	0.24 \| good
2026-04-19T07:00:00.000Z	35 \| good	1.93 \| good	8.082 \| good	37.638 \| good	0.847 \| good	12.901 \| good	0.232 \| good
2026-04-19T08:00:00.000Z	33 \| good	2.011 \| good	8.213 \| good	36.054 \| good	0.782 \| good	12.078 \| good	0.224 \| good
2026-04-19T09:00:00.000Z	32 \| good	2.043 \| good	8.173 \| good	34.592 \| good	0.717 \| good	11.254 \| good	0.216 \| good
2026-04-19T10:00:00.000Z	30 \| good	2.204 \| good	9.002 \| good	31.807 \| good	0.694 \| good	10.539 \| good	0.207 \| good
2026-04-19T11:00:00.000Z	27 \| good	1.365 \| good	5.516 \| good	29.357 \| good	0.67 \| good	9.824 \| good	0.199 \| good
2026-04-19T12:00:00.000Z	28 \| good	1.408 \| good	5.893 \| good	30.254 \| good	0.646 \| good	9.109 \| good	0.19 \| good
2026-04-19T13:00:00.000Z	19 \| good	2.822 \| good	11.584 \| good	19.826 \| good	0.652 \| good	8.26 \| good	0.186 \| good
2026-04-19T14:00:00.000Z	20 \| good	2.751 \| good	11.24 \| good	22.077 \| good	0.658 \| good	7.411 \| good	0.181 \| good
2026-04-19T15:00:00.000Z	26 \| good	3.874 \| good	17.047 \| good	27.751 \| good	0.664 \| good	6.563 \| good	0.177 \| good
2026-04-19T16:00:00.000Z	30 \| good	3.763 \| good	16.543 \| good	32.444 \| good	0.789 \| good	5.175 \| good	0.163 \| good
2026-04-19T17:00:00.000Z	32 \| good	3.56 \| good	15.844 \| good	34.605 \| good	0.914 \| good	3.787 \| good	0.15 \| good
2026-04-19T18:00:00.000Z	32 \| good	2.935 \| good	11.96 \| good	34.917 \| good	1.039 \| good	2.399 \| good	0.136 \| good
2026-04-19T19:00:00.000Z	34 \| good	2.354 \| good	9.559 \| good	36.52 \| good	0.993 \| good	2.049 \| good	0.133 \| good
2026-04-19T20:00:00.000Z	34 \| good	2.725 \| good	11.365 \| good	37.093 \| good	0.947 \| good	1.699 \| good	0.13 \| good
2026-04-19T21:00:00.000Z	34 \| good	2.388 \| good	9.902 \| good	36.633 \| good	0.901 \| good	1.349 \| good	0.126 \| good
2026-04-19T22:00:00.000Z	31 \| good	1.767 \| good	7.323 \| good	34.417 \| good	0.857 \| good	1.402 \| good	0.127 \| good
2026-04-19T23:00:00.000Z	32 \| good	2.321 \| good	9.395 \| good	34.945 \| good	0.813 \| good	1.455 \| good	0.127 \| good
2026-04-20T00:00:00.000Z	31 \| good	2.263 \| good	9.387 \| good	33.31 \| good	0.768 \| good	1.508 \| good	0.127 \| good
2026-04-20T01:00:00.000Z	31 \| good	3.644 \| good	15.99 \| good	34.234 \| good	0.779 \| good	2.372 \| good	0.133 \| good
2026-04-20T02:00:00.000Z	31 \| good	5.398 \| good	23.599 \| good	33.647 \| good	0.79 \| good	3.237 \| good	0.138 \| good
2026-04-20T03:00:00.000Z	31 \| good	4.712 \| good	20.569 \| good	33.346 \| good	0.801 \| good	4.101 \| good	0.144 \| good
2026-04-20T04:00:00.000Z	31 \| good	2.995 \| good	12.775 \| good	34.097 \| good	0.833 \| good	5.017 \| good	0.149 \| good
2026-04-20T05:00:00.000Z	30 \| good	1.77 \| good	7.203 \| good	31.903 \| good	0.865 \| good	5.932 \| good	0.155 \| good
2026-04-20T06:00:00.000Z	31 \| good	1.644 \| good	6.76 \| good	32.93 \| good	0.897 \| good	6.848 \| good	0.16 \| good
2026-04-20T07:00:00.000Z	31 \| good	1.704 \| good	7.085 \| good	34.389 \| good	0.896 \| good	6.924 \| good	0.16 \| good
2026-04-20T08:00:00.000Z	31 \| good	2.816 \| good	11.526 \| good	33.737 \| good	0.895 \| good	7 \| good	0.161 \| good
2026-04-20T09:00:00.000Z	28 \| good	2.851 \| good	11.918 \| good	30.035 \| good	0.894 \| good	7.077 \| good	0.161 \| good
2026-04-20T10:00:00.000Z	24 \| good	3.291 \| good	13.848 \| good	26.099 \| good	0.887 \| good	6.308 \| good	0.156 \| good
2026-04-20T11:00:00.000Z	27 \| good	4.516 \| good	19.47 \| good	22.022 \| good	0.879 \| good	5.539 \| good	0.151 \| good
2026-04-20T12:00:00.000Z	22 \| good	3.921 \| good	17.125 \| good	19.811 \| good	0.872 \| good	4.77 \| good	0.146 \| good
2026-04-20T13:00:00.000Z	16 \| good	3.355 \| good	14.453 \| good	15.283 \| good	0.851 \| good	4.75 \| good	0.146 \| good
2026-04-20T14:00:00.000Z	22 \| good	3.604 \| good	15.837 \| good	13.752 \| good	0.83 \| good	4.731 \| good	0.146 \| good
2026-04-20T15:00:00.000Z	17 \| good	3.099 \| good	13.368 \| good	18.032 \| good	0.809 \| good	4.712 \| good	0.146 \| good
2026-04-20T16:00:00.000Z	27 \| good	4.866 \| good	21.098 \| good	24.848 \| good	0.812 \| good	4.764 \| good	0.147 \| good
2026-04-20T17:00:00.000Z	33 \| good	5.984 \| good	26.338 \| good	25.886 \| good	0.815 \| good	4.816 \| good	0.147 \| good
2026-04-20T18:00:00.000Z	30 \| good	5.049 \| good	21.91 \| good	32.296 \| good	0.819 \| good	4.868 \| good	0.148 \| good
2026-04-20T19:00:00.000Z	33 \| good	2.963 \| good	12.141 \| good	35.771 \| good	0.737 \| good	4.099 \| good	0.142 \| good
2026-04-20T20:00:00.000Z	34 \| good	2.371 \| good	9.707 \| good	36.785 \| good	0.655 \| good	3.33 \| good	0.136 \| good
2026-04-20T21:00:00.000Z	33 \| good	1.732 \| good	7.038 \| good	36.048 \| good	0.574 \| good	2.562 \| good	0.13 \| good
2026-04-20T22:00:00.000Z	31 \| good	1.721 \| good	7.093 \| good	33.594 \| good	0.54 \| good	2.464 \| good	0.129 \| good
2026-04-20T23:00:00.000Z	30 \| good	2.23 \| good	9.107 \| good	31.8 \| good	0.506 \| good	2.367 \| good	0.127 \| good
2026-04-21T00:00:00.000Z	36 \| good	6.132 \| good	9.263 \| good	39.083 \| good	0.464 \| good	2.234 \| good	0.125 \| good
2026-04-21T01:00:00.000Z	31 \| good	3.62 \| good	15.916 \| good	33.448 \| good	0.512 \| good	3.222 \| good	0.132 \| good

Mill Valley, California live air quality index now

Major air pollutants in Mill 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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Mill Valley, California air quality map: Track AQI near you

Air quality in nearby cities

Larkspur, California

TamalpaisHomestead Valley, California

San Rafael, California

San Anselmo, California

Richmond, California

San Francisco, California

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Frequently asked questions

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What is the current concentration of PM2.5 in Mill Valley, California?

What is the current concentration of PM10 in Mill Valley, California?

What is the current concentration of carbon monoxide (CO) in Mill Valley, California?

What is the current concentration of sulfur dioxide (SO2) in Mill Valley, California?

What is the current concentration of ozone (O3) in Mill Valley, California?

What is the current concentration of nitrogen dioxide (NO2) in Mill Valley, California?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What is the current concentration of PM_2.5 in Mill Valley, California?

What is the current concentration of PM₁₀ in Mill Valley, California?

What is the current concentration of sulfur dioxide (SO₂) in Mill Valley, California?

What is the current concentration of ozone (O₃) in Mill Valley, California?

What is the current concentration of nitrogen dioxide (NO₂) in Mill Valley, California?