What are the current PM10 levels at San Anselmo, California?

The current PM10 levels in San Anselmo, California are 8.1 μg/m3.

What are the current sulfur dioxide (SO2) levels at San Anselmo, California?

The current sulfur dioxide (SO2) levels in San Anselmo, California are 0.761 ppb.

What are the current ozone (O3) levels at San Anselmo, California?

The current ozone (O3) levels at San Anselmo, California is 13.961 ppm.

What are the current nitrogen dioxide (NO2) levels at San Anselmo, California?

The current nitrogen dioxide (NO2) levels at San Anselmo, California is 4.036 ppb.

Real-time air quality index in San Anselmo, California today

Q: What are the current PM2.5 levels in San Anselmo, California?

The measured PM2.5 levels in San Anselmo, California at present are 1.849 μg/m3.

Stay updated with real-time air quality in San Anselmo, 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

San Anselmo, California

Last updated: ... (Local time)

Common air pollutants in San Anselmo, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

1.85 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

8.10 μg/m³

155

255

425

605+

Ozone (O₃)

13.96 ppb

201

201+

Sulfur Dioxide (SO₂)

0.76 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.04 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.31 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

San Anselmo, California

Get Live Pollen Counts

San Anselmo, California

Scroll To Air Quality Map

Track live San Anselmo, California air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-08-10T16:00:00.000Z	49 \| good	8.804 \| good	39.295 \| good	14.962 \| good	0.305 \| good	3.471 \| good	0.303 \| good
2026-08-10T17:00:00.000Z	49 \| good	8.931 \| good	39.754 \| good	15.003 \| good	0.305 \| good	1.682 \| good	0.306 \| good
2026-08-10T18:00:00.000Z	44 \| good	8.203 \| good	36.225 \| good	16.76 \| good	0.333 \| good	1.251 \| good	0.311 \| good
2026-08-10T19:00:00.000Z	44 \| good	8.153 \| good	36.052 \| good	19.395 \| good	0.272 \| good	0.855 \| good	0.303 \| good
2026-08-10T20:00:00.000Z	19 \| good	2.89 \| good	12.141 \| good	20.544 \| good	0.386 \| good	1.068 \| good	0.098 \| good
2026-08-10T21:00:00.000Z	22 \| good	4.292 \| good	18.98 \| good	20.051 \| good	0.38 \| good	0.921 \| good	0.099 \| good
2026-08-10T22:00:00.000Z	22 \| good	4.107 \| good	18.061 \| good	20.703 \| good	0.358 \| good	0.913 \| good	0.102 \| good
2026-08-10T23:00:00.000Z	38 \| good	6.633 \| good	29.848 \| good	21.505 \| good	0.337 \| good	0.972 \| good	0.105 \| good
2026-08-11T00:00:00.000Z	27 \| good	5.113 \| good	22.023 \| good	21.11 \| good	0.336 \| good	1.121 \| good	0.103 \| good
2026-08-11T01:00:00.000Z	27 \| good	4.691 \| good	20.04 \| good	21.527 \| good	0.332 \| good	1.585 \| good	0.106 \| good
2026-08-11T02:00:00.000Z	22 \| good	3.936 \| good	17.026 \| good	21.903 \| good	0.328 \| good	2.305 \| good	0.11 \| good
2026-08-11T03:00:00.000Z	22 \| good	3.872 \| good	16.985 \| good	20.588 \| good	0.331 \| good	2.836 \| good	0.111 \| good
2026-08-11T04:00:00.000Z	22 \| good	4.014 \| good	17.856 \| good	20.903 \| good	0.333 \| good	3.244 \| good	0.112 \| good
2026-08-11T05:00:00.000Z	19 \| good	3.217 \| good	13.905 \| good	21.041 \| good	0.341 \| good	3.493 \| good	0.112 \| good
2026-08-11T06:00:00.000Z	19 \| good	2.435 \| good	10.055 \| good	21.268 \| good	0.33 \| good	4.432 \| good	0.114 \| good
2026-08-11T07:00:00.000Z	33 \| good	6.002 \| good	25.876 \| good	17.603 \| good	0.301 \| good	1.812 \| good	0.303 \| good
2026-08-11T08:00:00.000Z	33 \| good	5.994 \| good	25.817 \| good	17.702 \| good	0.305 \| good	0.732 \| good	0.22 \| good
2026-08-11T09:00:00.000Z	27 \| good	5.23 \| good	22.98 \| good	17.722 \| good	0.318 \| good	1.043 \| good	0.22 \| good
2026-08-11T10:00:00.000Z	33 \| good	6.287 \| good	28.695 \| good	15.965 \| good	0.35 \| good	1.718 \| good	0.301 \| good
2026-08-11T11:00:00.000Z	33 \| good	6.272 \| good	28.65 \| good	15.087 \| good	0.384 \| good	1.898 \| good	0.301 \| good
2026-08-11T12:00:00.000Z	33 \| good	6.345 \| good	28.905 \| good	14.229 \| good	0.384 \| good	1.682 \| good	0.301 \| good
2026-08-11T13:00:00.000Z	33 \| good	6.321 \| good	28.786 \| good	14.188 \| good	0.464 \| good	1.86 \| good	0.303 \| good
2026-08-11T14:00:00.000Z	27 \| good	5.342 \| good	23.48 \| good	11.555 \| good	0.435 \| good	4.396 \| good	0.391 \| good
2026-08-11T15:00:00.000Z	27 \| good	5.398 \| good	23.343 \| good	11.535 \| good	0.636 \| good	5.922 \| good	0.401 \| good
2026-08-11T16:00:00.000Z	38 \| good	6.766 \| good	30.639 \| good	11.515 \| good	0.51 \| good	3.411 \| good	0.399 \| good
2026-08-11T17:00:00.000Z	38 \| good	6.958 \| good	31.12 \| good	14.19 \| good	0.555 \| good	2.244 \| good	0.391 \| good
2026-08-11T18:00:00.000Z	33 \| good	6.185 \| good	26.753 \| good	16.805 \| good	0.423 \| good	1.934 \| good	0.303 \| good
2026-08-11T19:00:00.000Z	27 \| good	5.301 \| good	22.847 \| good	16.826 \| good	0.535 \| good	1.633 \| good	0.303 \| good
2026-08-11T20:00:00.000Z	22 \| good	3.76 \| good	16.647 \| good	19.537 \| good	0.955 \| good	1.802 \| good	0.303 \| good
2026-08-11T21:00:00.000Z	19 \| good	2.956 \| good	12.254 \| good	21.337 \| good	0.762 \| good	2.018 \| good	0.303 \| good
2026-08-11T22:00:00.000Z	22 \| good	1.75 \| good	7.022 \| good	24.048 \| good	0.499 \| good	2.231 \| good	0.311 \| good
2026-08-11T23:00:00.000Z	22 \| good	1.606 \| good	7.169 \| good	23.969 \| good	0.443 \| good	1.592 \| good	0.399 \| good
2026-08-12T00:00:00.000Z	23 \| good	1.813 \| good	7.698 \| good	24.926 \| good	0.46 \| good	1.557 \| good	0.311 \| good
2026-08-12T01:00:00.000Z	22 \| good	1.771 \| good	7.477 \| good	24.005 \| good	0.447 \| good	1.57 \| good	0.311 \| good
2026-08-12T02:00:00.000Z	23 \| good	1.647 \| good	6.913 \| good	24.84 \| good	0.435 \| good	1.78 \| good	0.311 \| good
2026-08-12T03:00:00.000Z	27 \| good	5.437 \| good	22.92 \| good	22.461 \| good	0.277 \| good	2.546 \| good	0.081 \| good
2026-08-12T04:00:00.000Z	27 \| good	4.816 \| good	21.347 \| good	22.972 \| good	0.339 \| good	2.626 \| good	0.311 \| good
2026-08-12T05:00:00.000Z	27 \| good	4.505 \| good	20.271 \| good	21.114 \| good	0.38 \| good	2.115 \| good	0.311 \| good
2026-08-12T06:00:00.000Z	22 \| good	4.403 \| good	19.92 \| good	21.134 \| good	0.359 \| good	2.057 \| good	0.303 \| good
2026-08-12T07:00:00.000Z	22 \| good	3.855 \| good	17.127 \| good	19.355 \| good	0.388 \| good	1.509 \| good	0.309 \| good
2026-08-12T08:00:00.000Z	16 \| good	2.931 \| good	12.517 \| good	17.499 \| good	0.372 \| good	0.744 \| good	0.218 \| good
2026-08-12T09:00:00.000Z	16 \| good	2.65 \| good	11.563 \| good	16.621 \| good	0.421 \| good	0.713 \| good	0.22 \| good
2026-08-12T10:00:00.000Z	15 \| good	1.55 \| good	6.948 \| good	15.687 \| good	0.431 \| good	1.055 \| good	0.218 \| good
2026-08-12T11:00:00.000Z	14 \| good	1.89 \| good	7.78 \| good	14.785 \| good	0.439 \| good	1.582 \| good	0.301 \| good
2026-08-12T12:00:00.000Z	14 \| good	2.121 \| good	8.988 \| good	14.884 \| good	0.606 \| good	1.54 \| good	0.301 \| good
2026-08-12T13:00:00.000Z	14 \| good	1.964 \| good	8.18 \| good	14.864 \| good	0.273 \| good	1.561 \| good	0.296 \| good
2026-08-12T14:00:00.000Z	13 \| good	1.849 \| good	8.1 \| good	13.961 \| good	0.761 \| good	4.036 \| good	0.306 \| good
2026-08-12T15:00:00.000Z	13 \| good	1.849 \| good	8.1 \| good	13.961 \| good	0.761 \| good	4.036 \| good	0.306 \| good
2026-08-12T16:00:00.000Z	19 \| good	2.738 \| good	11.019 \| good	19.565 \| good	0.322 \| good	2.538 \| good	0.075 \| good
2026-08-12T17:00:00.000Z	20 \| good	3.164 \| good	13.911 \| good	21.871 \| good	0.362 \| good	2.117 \| good	0.077 \| good
2026-08-12T18:00:00.000Z	22 \| good	3.075 \| good	12.222 \| good	24.295 \| good	0.392 \| good	1.693 \| good	0.078 \| good
2026-08-12T19:00:00.000Z	23 \| good	3.075 \| good	12.222 \| good	24.562 \| good	0.409 \| good	1.328 \| good	0.078 \| good
2026-08-12T20:00:00.000Z	21 \| good	2.444 \| good	10.087 \| good	23.431 \| good	0.413 \| good	1.067 \| good	0.078 \| good
2026-08-12T21:00:00.000Z	20 \| good	2.648 \| good	11.066 \| good	22.296 \| good	0.401 \| good	0.906 \| good	0.077 \| good
2026-08-12T22:00:00.000Z	22 \| good	3.224 \| good	13.943 \| good	23.763 \| good	0.38 \| good	0.848 \| good	0.075 \| good
2026-08-12T23:00:00.000Z	22 \| good	2.748 \| good	11.129 \| good	23.951 \| good	0.36 \| good	0.907 \| good	0.073 \| good
2026-08-13T00:00:00.000Z	27 \| good	4.705 \| good	20.854 \| good	21.06 \| good	0.351 \| good	1.074 \| good	0.072 \| good
2026-08-13T01:00:00.000Z	22 \| good	4.411 \| good	19.09 \| good	21.9 \| good	0.34 \| good	1.443 \| good	0.072 \| good
2026-08-13T02:00:00.000Z	22 \| good	4.36 \| good	19.056 \| good	22.585 \| good	0.33 \| good	1.994 \| good	0.074 \| good
2026-08-13T03:00:00.000Z	24 \| good	3.626 \| good	16.02 \| good	26.081 \| good	0.331 \| good	2.679 \| good	0.076 \| good
2026-08-13T04:00:00.000Z	25 \| good	3.206 \| good	14.001 \| good	26.575 \| good	0.338 \| good	3.347 \| good	0.078 \| good
2026-08-13T05:00:00.000Z	24 \| good	2.788 \| good	11.132 \| good	25.826 \| good	0.336 \| good	3.739 \| good	0.079 \| good
2026-08-13T06:00:00.000Z	24 \| good	2.672 \| good	11.017 \| good	25.545 \| good	0.338 \| good	3.516 \| good	0.078 \| good
2026-08-13T07:00:00.000Z	22 \| good	2.737 \| good	11.065 \| good	24.002 \| good	0.327 \| good	3.191 \| good	0.077 \| good
2026-08-13T08:00:00.000Z	20 \| good	2.351 \| good	9.982 \| good	22.338 \| good	0.308 \| good	2.827 \| good	0.076 \| good
2026-08-13T09:00:00.000Z	22 \| good	3.793 \| good	16.206 \| good	21.759 \| good	0.307 \| good	2.341 \| good	0.074 \| good
2026-08-13T10:00:00.000Z	27 \| good	4.686 \| good	20.114 \| good	22.195 \| good	0.306 \| good	2.111 \| good	0.074 \| good
2026-08-13T11:00:00.000Z	22 \| good	4.003 \| good	17.943 \| good	22.461 \| good	0.31 \| good	2.039 \| good	0.073 \| good
2026-08-13T12:00:00.000Z	16 \| good	2.812 \| good	11.981 \| good	13.408 \| good	0.316 \| good	2.112 \| good	0.074 \| good
2026-08-13T13:00:00.000Z	20 \| good	2.09 \| good	8.167 \| good	21.963 \| good	0.329 \| good	2.107 \| good	0.075 \| good
2026-08-13T14:00:00.000Z	21 \| good	1.975 \| good	8.069 \| good	23.004 \| good	0.345 \| good	2.093 \| good	0.077 \| good
2026-08-13T15:00:00.000Z	20 \| good	1.643 \| good	6.988 \| good	22.369 \| good	0.368 \| good	1.866 \| good	0.08 \| good
2026-08-13T16:00:00.000Z	21 \| good	2.148 \| good	9.017 \| good	22.871 \| good	0.376 \| good	1.787 \| good	0.083 \| good
2026-08-13T17:00:00.000Z	20 \| good	1.908 \| good	7.99 \| good	21.674 \| good	0.381 \| good	1.567 \| good	0.083 \| good
2026-08-13T18:00:00.000Z	21 \| good	2.369 \| good	9.94 \| good	22.77 \| good	0.385 \| good	1.271 \| good	0.082 \| good
2026-08-13T19:00:00.000Z	20 \| good	3.256 \| good	14.09 \| good	22.425 \| good	0.385 \| good	0.993 \| good	0.079 \| good
2026-08-13T20:00:00.000Z	22 \| good	3.989 \| good	17.09 \| good	22.991 \| good	0.375 \| good	0.8 \| good	0.076 \| good
2026-08-13T21:00:00.000Z	22 \| good	3.959 \| good	17.104 \| good	22.933 \| good	0.362 \| good	0.686 \| good	0.072 \| good
2026-08-13T22:00:00.000Z	27 \| good	4.513 \| good	19.989 \| good	24.072 \| good	0.344 \| good	0.682 \| good	0.07 \| good
2026-08-13T23:00:00.000Z	24 \| good	4.168 \| good	18.074 \| good	25.737 \| good	0.325 \| good	0.771 \| good	0.069 \| good
2026-08-14T00:00:00.000Z	33 \| good	6.484 \| good	29.001 \| good	24.121 \| good	0.302 \| good	0.976 \| good	0.069 \| good
2026-08-14T01:00:00.000Z	38 \| good	6.623 \| good	29.88 \| good	24.166 \| good	0.284 \| good	1.244 \| good	0.07 \| good
2026-08-14T02:00:00.000Z	33 \| good	5.66 \| good	24.051 \| good	24.999 \| good	0.263 \| good	1.526 \| good	0.071 \| good
2026-08-14T03:00:00.000Z	23 \| good	4.23 \| good	18.887 \| good	24.639 \| good	0.243 \| good	1.776 \| good	0.072 \| good
2026-08-14T04:00:00.000Z	24 \| good	2.551 \| good	10.12 \| good	25.793 \| good	0.24 \| good	1.786 \| good	0.072 \| good
2026-08-14T05:00:00.000Z	23 \| good	2.203 \| good	8.998 \| good	24.761 \| good	0.239 \| good	1.873 \| good	0.073 \| good
2026-08-14T06:00:00.000Z	22 \| good	1.772 \| good	7.096 \| good	23.988 \| good	0.248 \| good	1.992 \| good	0.074 \| good
2026-08-14T07:00:00.000Z	21 \| good	1.574 \| good	6.184 \| good	23.181 \| good	0.242 \| good	2.471 \| good	0.077 \| good
2026-08-14T08:00:00.000Z	21 \| good	1.544 \| good	6.119 \| good	22.733 \| good	0.24 \| good	2.1 \| good	0.077 \| good
2026-08-14T09:00:00.000Z	19 \| good	2.212 \| good	9.084 \| good	20.29 \| good	0.231 \| good	1.925 \| good	0.078 \| good
2026-08-14T10:00:00.000Z	19 \| good	2.225 \| good	9.041 \| good	20.073 \| good	0.229 \| good	1.683 \| good	0.079 \| good
2026-08-14T11:00:00.000Z	19 \| good	2.098 \| good	8.154 \| good	20.193 \| good	0.23 \| good	1.637 \| good	0.08 \| good
2026-08-14T12:00:00.000Z	15 \| good	1.39 \| good	5.227 \| good	15.879 \| good	0.237 \| good	1.659 \| good	0.08 \| good
2026-08-14T13:00:00.000Z	16 \| good	1.225 \| good	5.028 \| good	16.842 \| good	0.249 \| good	1.652 \| good	0.081 \| good
2026-08-14T14:00:00.000Z	17 \| good	0.734 \| good	2.978 \| good	17.885 \| good	0.26 \| good	1.763 \| good	0.081 \| good
2026-08-14T15:00:00.000Z	19 \| good	0.789 \| good	3.017 \| good	21.442 \| good	0.269 \| good	1.631 \| good	0.082 \| good

San Anselmo

Empower business decisions with accurate air quality data

San Anselmo, California air quality map: Real-time AQI near you

0.39ppm

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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Frequently asked questions

How frequently is the air quality data for San Anselmo, California updated?

Air quality data for San Anselmo, California is updated on an hourly basis.

When did San Anselmo, California experience the worst air quality in the last 24 hours?

The worst air quality in San Anselmo, California was recorded at 05:00:00 on 2026-08-11.

When did San Anselmo, California have its best air quality in the last 24 hours?

The best air quality in San Anselmo, California was recorded at 02:00:00 on 2026-08-12.

What is the real-time air quality index for San Anselmo, California?

The real-time air quality index in San Anselmo, California is 13, currently categorized as Good.

Which pollutant is found most often in San Anselmo, California?

The most common pollutant in San Anselmo, California is O3.

What can I do if the air quality in San Anselmo, California is poor?

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

What are the current PM_2.5 levels in San Anselmo, California?

The measured PM_2.5 levels in San Anselmo, California at present are 1.849 μg/m³.

What are the current PM₁₀ levels at San Anselmo, California?

The current PM₁₀ levels in San Anselmo, California are 8.1 μg/m³.

What are the current carbon monoxide (CO) levels at San Anselmo, California?

The current carbon monoxide (CO) level in San Anselmo, California is 0.306 ppm.

What are the current sulfur dioxide (SO₂) levels at San Anselmo, California?

The current sulfur dioxide (SO₂) levels in San Anselmo, California are 0.761 ppb.

What are the current ozone (O₃) levels at San Anselmo, California?

The current ozone (O₃) levels at San Anselmo, California is 13.961 ppm.

What are the current nitrogen dioxide (NO₂) levels at San Anselmo, California?

The current nitrogen dioxide (NO₂) levels at San Anselmo, California is 4.036 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-08-10T16:00:00.000Z	49 \| good	8.804 \| good	39.295 \| good	14.962 \| good	0.305 \| good	3.471 \| good	0.303 \| good
2026-08-10T17:00:00.000Z	49 \| good	8.931 \| good	39.754 \| good	15.003 \| good	0.305 \| good	1.682 \| good	0.306 \| good
2026-08-10T18:00:00.000Z	44 \| good	8.203 \| good	36.225 \| good	16.76 \| good	0.333 \| good	1.251 \| good	0.311 \| good
2026-08-10T19:00:00.000Z	44 \| good	8.153 \| good	36.052 \| good	19.395 \| good	0.272 \| good	0.855 \| good	0.303 \| good
2026-08-10T20:00:00.000Z	19 \| good	2.89 \| good	12.141 \| good	20.544 \| good	0.386 \| good	1.068 \| good	0.098 \| good
2026-08-10T21:00:00.000Z	22 \| good	4.292 \| good	18.98 \| good	20.051 \| good	0.38 \| good	0.921 \| good	0.099 \| good
2026-08-10T22:00:00.000Z	22 \| good	4.107 \| good	18.061 \| good	20.703 \| good	0.358 \| good	0.913 \| good	0.102 \| good
2026-08-10T23:00:00.000Z	38 \| good	6.633 \| good	29.848 \| good	21.505 \| good	0.337 \| good	0.972 \| good	0.105 \| good
2026-08-11T00:00:00.000Z	27 \| good	5.113 \| good	22.023 \| good	21.11 \| good	0.336 \| good	1.121 \| good	0.103 \| good
2026-08-11T01:00:00.000Z	27 \| good	4.691 \| good	20.04 \| good	21.527 \| good	0.332 \| good	1.585 \| good	0.106 \| good
2026-08-11T02:00:00.000Z	22 \| good	3.936 \| good	17.026 \| good	21.903 \| good	0.328 \| good	2.305 \| good	0.11 \| good
2026-08-11T03:00:00.000Z	22 \| good	3.872 \| good	16.985 \| good	20.588 \| good	0.331 \| good	2.836 \| good	0.111 \| good
2026-08-11T04:00:00.000Z	22 \| good	4.014 \| good	17.856 \| good	20.903 \| good	0.333 \| good	3.244 \| good	0.112 \| good
2026-08-11T05:00:00.000Z	19 \| good	3.217 \| good	13.905 \| good	21.041 \| good	0.341 \| good	3.493 \| good	0.112 \| good
2026-08-11T06:00:00.000Z	19 \| good	2.435 \| good	10.055 \| good	21.268 \| good	0.33 \| good	4.432 \| good	0.114 \| good
2026-08-11T07:00:00.000Z	33 \| good	6.002 \| good	25.876 \| good	17.603 \| good	0.301 \| good	1.812 \| good	0.303 \| good
2026-08-11T08:00:00.000Z	33 \| good	5.994 \| good	25.817 \| good	17.702 \| good	0.305 \| good	0.732 \| good	0.22 \| good
2026-08-11T09:00:00.000Z	27 \| good	5.23 \| good	22.98 \| good	17.722 \| good	0.318 \| good	1.043 \| good	0.22 \| good
2026-08-11T10:00:00.000Z	33 \| good	6.287 \| good	28.695 \| good	15.965 \| good	0.35 \| good	1.718 \| good	0.301 \| good
2026-08-11T11:00:00.000Z	33 \| good	6.272 \| good	28.65 \| good	15.087 \| good	0.384 \| good	1.898 \| good	0.301 \| good
2026-08-11T12:00:00.000Z	33 \| good	6.345 \| good	28.905 \| good	14.229 \| good	0.384 \| good	1.682 \| good	0.301 \| good
2026-08-11T13:00:00.000Z	33 \| good	6.321 \| good	28.786 \| good	14.188 \| good	0.464 \| good	1.86 \| good	0.303 \| good
2026-08-11T14:00:00.000Z	27 \| good	5.342 \| good	23.48 \| good	11.555 \| good	0.435 \| good	4.396 \| good	0.391 \| good
2026-08-11T15:00:00.000Z	27 \| good	5.398 \| good	23.343 \| good	11.535 \| good	0.636 \| good	5.922 \| good	0.401 \| good
2026-08-11T16:00:00.000Z	38 \| good	6.766 \| good	30.639 \| good	11.515 \| good	0.51 \| good	3.411 \| good	0.399 \| good
2026-08-11T17:00:00.000Z	38 \| good	6.958 \| good	31.12 \| good	14.19 \| good	0.555 \| good	2.244 \| good	0.391 \| good
2026-08-11T18:00:00.000Z	33 \| good	6.185 \| good	26.753 \| good	16.805 \| good	0.423 \| good	1.934 \| good	0.303 \| good
2026-08-11T19:00:00.000Z	27 \| good	5.301 \| good	22.847 \| good	16.826 \| good	0.535 \| good	1.633 \| good	0.303 \| good
2026-08-11T20:00:00.000Z	22 \| good	3.76 \| good	16.647 \| good	19.537 \| good	0.955 \| good	1.802 \| good	0.303 \| good
2026-08-11T21:00:00.000Z	19 \| good	2.956 \| good	12.254 \| good	21.337 \| good	0.762 \| good	2.018 \| good	0.303 \| good
2026-08-11T22:00:00.000Z	22 \| good	1.75 \| good	7.022 \| good	24.048 \| good	0.499 \| good	2.231 \| good	0.311 \| good
2026-08-11T23:00:00.000Z	22 \| good	1.606 \| good	7.169 \| good	23.969 \| good	0.443 \| good	1.592 \| good	0.399 \| good
2026-08-12T00:00:00.000Z	23 \| good	1.813 \| good	7.698 \| good	24.926 \| good	0.46 \| good	1.557 \| good	0.311 \| good
2026-08-12T01:00:00.000Z	22 \| good	1.771 \| good	7.477 \| good	24.005 \| good	0.447 \| good	1.57 \| good	0.311 \| good
2026-08-12T02:00:00.000Z	23 \| good	1.647 \| good	6.913 \| good	24.84 \| good	0.435 \| good	1.78 \| good	0.311 \| good
2026-08-12T03:00:00.000Z	27 \| good	5.437 \| good	22.92 \| good	22.461 \| good	0.277 \| good	2.546 \| good	0.081 \| good
2026-08-12T04:00:00.000Z	27 \| good	4.816 \| good	21.347 \| good	22.972 \| good	0.339 \| good	2.626 \| good	0.311 \| good
2026-08-12T05:00:00.000Z	27 \| good	4.505 \| good	20.271 \| good	21.114 \| good	0.38 \| good	2.115 \| good	0.311 \| good
2026-08-12T06:00:00.000Z	22 \| good	4.403 \| good	19.92 \| good	21.134 \| good	0.359 \| good	2.057 \| good	0.303 \| good
2026-08-12T07:00:00.000Z	22 \| good	3.855 \| good	17.127 \| good	19.355 \| good	0.388 \| good	1.509 \| good	0.309 \| good
2026-08-12T08:00:00.000Z	16 \| good	2.931 \| good	12.517 \| good	17.499 \| good	0.372 \| good	0.744 \| good	0.218 \| good
2026-08-12T09:00:00.000Z	16 \| good	2.65 \| good	11.563 \| good	16.621 \| good	0.421 \| good	0.713 \| good	0.22 \| good
2026-08-12T10:00:00.000Z	15 \| good	1.55 \| good	6.948 \| good	15.687 \| good	0.431 \| good	1.055 \| good	0.218 \| good
2026-08-12T11:00:00.000Z	14 \| good	1.89 \| good	7.78 \| good	14.785 \| good	0.439 \| good	1.582 \| good	0.301 \| good
2026-08-12T12:00:00.000Z	14 \| good	2.121 \| good	8.988 \| good	14.884 \| good	0.606 \| good	1.54 \| good	0.301 \| good
2026-08-12T13:00:00.000Z	14 \| good	1.964 \| good	8.18 \| good	14.864 \| good	0.273 \| good	1.561 \| good	0.296 \| good
2026-08-12T14:00:00.000Z	13 \| good	1.849 \| good	8.1 \| good	13.961 \| good	0.761 \| good	4.036 \| good	0.306 \| good
2026-08-12T15:00:00.000Z	13 \| good	1.849 \| good	8.1 \| good	13.961 \| good	0.761 \| good	4.036 \| good	0.306 \| good
2026-08-12T16:00:00.000Z	19 \| good	2.738 \| good	11.019 \| good	19.565 \| good	0.322 \| good	2.538 \| good	0.075 \| good
2026-08-12T17:00:00.000Z	20 \| good	3.164 \| good	13.911 \| good	21.871 \| good	0.362 \| good	2.117 \| good	0.077 \| good
2026-08-12T18:00:00.000Z	22 \| good	3.075 \| good	12.222 \| good	24.295 \| good	0.392 \| good	1.693 \| good	0.078 \| good
2026-08-12T19:00:00.000Z	23 \| good	3.075 \| good	12.222 \| good	24.562 \| good	0.409 \| good	1.328 \| good	0.078 \| good
2026-08-12T20:00:00.000Z	21 \| good	2.444 \| good	10.087 \| good	23.431 \| good	0.413 \| good	1.067 \| good	0.078 \| good
2026-08-12T21:00:00.000Z	20 \| good	2.648 \| good	11.066 \| good	22.296 \| good	0.401 \| good	0.906 \| good	0.077 \| good
2026-08-12T22:00:00.000Z	22 \| good	3.224 \| good	13.943 \| good	23.763 \| good	0.38 \| good	0.848 \| good	0.075 \| good
2026-08-12T23:00:00.000Z	22 \| good	2.748 \| good	11.129 \| good	23.951 \| good	0.36 \| good	0.907 \| good	0.073 \| good
2026-08-13T00:00:00.000Z	27 \| good	4.705 \| good	20.854 \| good	21.06 \| good	0.351 \| good	1.074 \| good	0.072 \| good
2026-08-13T01:00:00.000Z	22 \| good	4.411 \| good	19.09 \| good	21.9 \| good	0.34 \| good	1.443 \| good	0.072 \| good
2026-08-13T02:00:00.000Z	22 \| good	4.36 \| good	19.056 \| good	22.585 \| good	0.33 \| good	1.994 \| good	0.074 \| good
2026-08-13T03:00:00.000Z	24 \| good	3.626 \| good	16.02 \| good	26.081 \| good	0.331 \| good	2.679 \| good	0.076 \| good
2026-08-13T04:00:00.000Z	25 \| good	3.206 \| good	14.001 \| good	26.575 \| good	0.338 \| good	3.347 \| good	0.078 \| good
2026-08-13T05:00:00.000Z	24 \| good	2.788 \| good	11.132 \| good	25.826 \| good	0.336 \| good	3.739 \| good	0.079 \| good
2026-08-13T06:00:00.000Z	24 \| good	2.672 \| good	11.017 \| good	25.545 \| good	0.338 \| good	3.516 \| good	0.078 \| good
2026-08-13T07:00:00.000Z	22 \| good	2.737 \| good	11.065 \| good	24.002 \| good	0.327 \| good	3.191 \| good	0.077 \| good
2026-08-13T08:00:00.000Z	20 \| good	2.351 \| good	9.982 \| good	22.338 \| good	0.308 \| good	2.827 \| good	0.076 \| good
2026-08-13T09:00:00.000Z	22 \| good	3.793 \| good	16.206 \| good	21.759 \| good	0.307 \| good	2.341 \| good	0.074 \| good
2026-08-13T10:00:00.000Z	27 \| good	4.686 \| good	20.114 \| good	22.195 \| good	0.306 \| good	2.111 \| good	0.074 \| good
2026-08-13T11:00:00.000Z	22 \| good	4.003 \| good	17.943 \| good	22.461 \| good	0.31 \| good	2.039 \| good	0.073 \| good
2026-08-13T12:00:00.000Z	16 \| good	2.812 \| good	11.981 \| good	13.408 \| good	0.316 \| good	2.112 \| good	0.074 \| good
2026-08-13T13:00:00.000Z	20 \| good	2.09 \| good	8.167 \| good	21.963 \| good	0.329 \| good	2.107 \| good	0.075 \| good
2026-08-13T14:00:00.000Z	21 \| good	1.975 \| good	8.069 \| good	23.004 \| good	0.345 \| good	2.093 \| good	0.077 \| good
2026-08-13T15:00:00.000Z	20 \| good	1.643 \| good	6.988 \| good	22.369 \| good	0.368 \| good	1.866 \| good	0.08 \| good
2026-08-13T16:00:00.000Z	21 \| good	2.148 \| good	9.017 \| good	22.871 \| good	0.376 \| good	1.787 \| good	0.083 \| good
2026-08-13T17:00:00.000Z	20 \| good	1.908 \| good	7.99 \| good	21.674 \| good	0.381 \| good	1.567 \| good	0.083 \| good
2026-08-13T18:00:00.000Z	21 \| good	2.369 \| good	9.94 \| good	22.77 \| good	0.385 \| good	1.271 \| good	0.082 \| good
2026-08-13T19:00:00.000Z	20 \| good	3.256 \| good	14.09 \| good	22.425 \| good	0.385 \| good	0.993 \| good	0.079 \| good
2026-08-13T20:00:00.000Z	22 \| good	3.989 \| good	17.09 \| good	22.991 \| good	0.375 \| good	0.8 \| good	0.076 \| good
2026-08-13T21:00:00.000Z	22 \| good	3.959 \| good	17.104 \| good	22.933 \| good	0.362 \| good	0.686 \| good	0.072 \| good
2026-08-13T22:00:00.000Z	27 \| good	4.513 \| good	19.989 \| good	24.072 \| good	0.344 \| good	0.682 \| good	0.07 \| good
2026-08-13T23:00:00.000Z	24 \| good	4.168 \| good	18.074 \| good	25.737 \| good	0.325 \| good	0.771 \| good	0.069 \| good
2026-08-14T00:00:00.000Z	33 \| good	6.484 \| good	29.001 \| good	24.121 \| good	0.302 \| good	0.976 \| good	0.069 \| good
2026-08-14T01:00:00.000Z	38 \| good	6.623 \| good	29.88 \| good	24.166 \| good	0.284 \| good	1.244 \| good	0.07 \| good
2026-08-14T02:00:00.000Z	33 \| good	5.66 \| good	24.051 \| good	24.999 \| good	0.263 \| good	1.526 \| good	0.071 \| good
2026-08-14T03:00:00.000Z	23 \| good	4.23 \| good	18.887 \| good	24.639 \| good	0.243 \| good	1.776 \| good	0.072 \| good
2026-08-14T04:00:00.000Z	24 \| good	2.551 \| good	10.12 \| good	25.793 \| good	0.24 \| good	1.786 \| good	0.072 \| good
2026-08-14T05:00:00.000Z	23 \| good	2.203 \| good	8.998 \| good	24.761 \| good	0.239 \| good	1.873 \| good	0.073 \| good
2026-08-14T06:00:00.000Z	22 \| good	1.772 \| good	7.096 \| good	23.988 \| good	0.248 \| good	1.992 \| good	0.074 \| good
2026-08-14T07:00:00.000Z	21 \| good	1.574 \| good	6.184 \| good	23.181 \| good	0.242 \| good	2.471 \| good	0.077 \| good
2026-08-14T08:00:00.000Z	21 \| good	1.544 \| good	6.119 \| good	22.733 \| good	0.24 \| good	2.1 \| good	0.077 \| good
2026-08-14T09:00:00.000Z	19 \| good	2.212 \| good	9.084 \| good	20.29 \| good	0.231 \| good	1.925 \| good	0.078 \| good
2026-08-14T10:00:00.000Z	19 \| good	2.225 \| good	9.041 \| good	20.073 \| good	0.229 \| good	1.683 \| good	0.079 \| good
2026-08-14T11:00:00.000Z	19 \| good	2.098 \| good	8.154 \| good	20.193 \| good	0.23 \| good	1.637 \| good	0.08 \| good
2026-08-14T12:00:00.000Z	15 \| good	1.39 \| good	5.227 \| good	15.879 \| good	0.237 \| good	1.659 \| good	0.08 \| good
2026-08-14T13:00:00.000Z	16 \| good	1.225 \| good	5.028 \| good	16.842 \| good	0.249 \| good	1.652 \| good	0.081 \| good
2026-08-14T14:00:00.000Z	17 \| good	0.734 \| good	2.978 \| good	17.885 \| good	0.26 \| good	1.763 \| good	0.081 \| good
2026-08-14T15:00:00.000Z	19 \| good	0.789 \| good	3.017 \| good	21.442 \| good	0.269 \| good	1.631 \| good	0.082 \| good

Real-time air quality index in San Anselmo, California today

Common air pollutants in San Anselmo, California

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live San Anselmo, California air quality forecast and history

Empower business decisions with accurate air quality data

San Anselmo, California air quality map: Real-time AQI near you

Air quality in nearby cities

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Larkspur, California

Mill Valley, California

TamalpaisHomestead Valley, California

Novato, California

San Pablo, 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 San Anselmo, California updated?

When did San Anselmo, California experience the worst air quality in the last 24 hours?

When did San Anselmo, California have its best air quality in the last 24 hours?

What is the real-time air quality index for San Anselmo, California?

Which pollutant is found most often in San Anselmo, California?

What can I do if the air quality in San Anselmo, California is poor?

What are the current PM2.5 levels in San Anselmo, California?

What are the current PM10 levels at San Anselmo, California?

What are the current carbon monoxide (CO) levels at San Anselmo, California?

What are the current sulfur dioxide (SO2) levels at San Anselmo, California?

What are the current ozone (O3) levels at San Anselmo, California?

What are the current nitrogen dioxide (NO2) levels at San Anselmo, 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 San Anselmo, California?

What are the current PM₁₀ levels at San Anselmo, California?

What are the current sulfur dioxide (SO₂) levels at San Anselmo, California?

What are the current ozone (O₃) levels at San Anselmo, California?

What are the current nitrogen dioxide (NO₂) levels at San Anselmo, California?