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

The current PM10 levels in San Leandro, California are 45.924 μg/m3.

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

The current sulfur dioxide (SO2) levels in San Leandro, California are 0.578 ppb.

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

The current ozone (O3) levels at San Leandro, California is 10.936 ppm.

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

The current nitrogen dioxide (NO2) levels at San Leandro, California is 4.604 ppb.

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

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

The measured PM2.5 levels in San Leandro, California at present are 10.24 μg/m3.

Stay updated with real-time air quality in San Leandro, California featuring accurate data on AQI, PM_2.5, PM₁₀, O₃, NO₂, SO₂, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.

Live AQI (Air Quality Index)

Moderate

San Leandro, California

Last updated: ... (Local time)

Common air pollutants in San Leandro, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

10.24 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

45.92 μg/m³

155

255

425

605+

Ozone (O₃)

10.94 ppb

201

201+

Sulfur Dioxide (SO₂)

0.58 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.60 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.22 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

San Leandro, California

Get Live Pollen Counts

San Leandro, California

Scroll To Air Quality Map

Track live San Leandro, California air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-12-05T23:00:00.000Z	66 \| moderate	16.54 \| fine	72.876 \| fine	10.381 \| good	0.502 \| good	12.565 \| good	0.3 \| good
2025-12-06T00:00:00.000Z	62 \| moderate	14.57 \| fine	64.579 \| fine	11.277 \| good	0.516 \| good	12.654 \| good	0.295 \| good
2025-12-06T01:00:00.000Z	67 \| moderate	17.959 \| fine	80.238 \| fine	9.464 \| good	0.476 \| good	14.091 \| good	0.295 \| good
2025-12-06T02:00:00.000Z	71 \| moderate	20.269 \| fine	89.184 \| fine	7.557 \| good	0.474 \| good	18.389 \| good	0.386 \| good
2025-12-06T03:00:00.000Z	77 \| moderate	22.556 \| fine	97.828 \| fine	6.49 \| good	0.456 \| good	20.214 \| good	0.394 \| good
2025-12-06T04:00:00.000Z	75 \| moderate	22.316 \| fine	96.771 \| fine	6.386 \| good	0.514 \| good	18.923 \| good	0.577 \| good
2025-12-06T05:00:00.000Z	75 \| moderate	21.64 \| fine	95.262 \| fine	4.491 \| good	0.523 \| good	18.058 \| good	0.573 \| good
2025-12-06T06:00:00.000Z	73 \| moderate	20.974 \| fine	91.622 \| fine	4.46 \| good	0.562 \| good	16.896 \| good	0.582 \| good
2025-12-06T07:00:00.000Z	71 \| moderate	19.746 \| fine	86.797 \| fine	2.532 \| good	0.589 \| good	15.255 \| good	0.4 \| good
2025-12-06T08:00:00.000Z	67 \| moderate	18.28 \| fine	80.867 \| fine	5.706 \| good	0.511 \| good	13.733 \| good	0.305 \| good
2025-12-06T09:00:00.000Z	67 \| moderate	18.258 \| fine	80.666 \| fine	5.651 \| good	0.513 \| good	13.641 \| good	0.297 \| good
2025-12-06T10:00:00.000Z	67 \| moderate	18.173 \| fine	80.667 \| fine	6.738 \| good	0.922 \| good	6.266 \| good	0.418 \| good
2025-12-06T11:00:00.000Z	56 \| moderate	8.79 \| good	65.068 \| fine	9.43 \| good	0.858 \| good	6.203 \| good	0.375 \| good
2025-12-06T12:00:00.000Z	58 \| moderate	13.052 \| fine	58.78 \| fine	12.039 \| good	0.305 \| good	9.318 \| good	0.219 \| good
2025-12-06T13:00:00.000Z	56 \| moderate	12.026 \| good	53.216 \| good	6.96 \| good	0.395 \| good	6.38 \| good	0.213 \| good
2025-12-06T14:00:00.000Z	54 \| moderate	11.208 \| good	48.938 \| good	7.015 \| good	0.507 \| good	6.672 \| good	0.203 \| good
2025-12-06T15:00:00.000Z	56 \| moderate	12.15 \| fine	54.236 \| good	6.93 \| good	0.392 \| good	8.517 \| good	0.208 \| good
2025-12-06T16:00:00.000Z	58 \| moderate	13.008 \| fine	59.396 \| fine	7.102 \| good	0.364 \| good	7.097 \| good	0.215 \| good
2025-12-06T17:00:00.000Z	60 \| moderate	14.235 \| fine	62.871 \| fine	8.963 \| good	0.413 \| good	8.032 \| good	0.3 \| good
2025-12-06T18:00:00.000Z	62 \| moderate	14.845 \| fine	66.7 \| fine	8.026 \| good	0.473 \| good	6.673 \| good	0.305 \| good
2025-12-06T19:00:00.000Z	62 \| moderate	14.861 \| fine	66.819 \| fine	9.985 \| good	0.466 \| good	6.11 \| good	0.312 \| good
2025-12-06T20:00:00.000Z	62 \| moderate	14.944 \| fine	66.875 \| fine	9.24 \| good	0.527 \| good	5.297 \| good	0.307 \| good
2025-12-06T21:00:00.000Z	58 \| moderate	13.046 \| fine	59.04 \| fine	10.215 \| good	0.656 \| good	5.141 \| good	0.313 \| good
2025-12-06T22:00:00.000Z	58 \| moderate	12.932 \| fine	58.343 \| fine	10.292 \| good	0.67 \| good	6.762 \| good	0.308 \| good
2025-12-06T23:00:00.000Z	60 \| moderate	13.817 \| fine	62.114 \| fine	10.347 \| good	0.597 \| good	8.827 \| good	0.305 \| good
2025-12-07T00:00:00.000Z	62 \| moderate	14.799 \| fine	65.075 \| fine	9.368 \| good	0.472 \| good	10.037 \| good	0.305 \| good
2025-12-07T01:00:00.000Z	62 \| moderate	14.683 \| fine	65.753 \| fine	8.505 \| good	0.442 \| good	7.588 \| good	0.304 \| good
2025-12-07T02:00:00.000Z	62 \| moderate	14.519 \| fine	65.107 \| fine	6.476 \| good	0.4 \| good	9.07 \| good	0.311 \| good
2025-12-07T03:00:00.000Z	62 \| moderate	15.215 \| fine	66.614 \| fine	5.496 \| good	0.427 \| good	10.102 \| good	0.309 \| good
2025-12-07T04:00:00.000Z	60 \| moderate	14.492 \| fine	63.629 \| fine	6.219 \| good	0.412 \| good	11.78 \| good	0.406 \| good
2025-12-07T05:00:00.000Z	62 \| moderate	14.542 \| fine	64.415 \| fine	5.304 \| good	0.453 \| good	12.363 \| good	0.409 \| good
2025-12-07T06:00:00.000Z	60 \| moderate	13.671 \| fine	59.703 \| fine	5.17 \| good	0.471 \| good	11.677 \| good	0.497 \| good
2025-12-07T07:00:00.000Z	60 \| moderate	14.131 \| fine	63.739 \| fine	5.179 \| good	0.469 \| good	10.029 \| good	0.406 \| good
2025-12-07T08:00:00.000Z	60 \| moderate	13.657 \| fine	61.654 \| fine	5.336 \| good	0.472 \| good	10.35 \| good	0.41 \| good
2025-12-07T09:00:00.000Z	60 \| moderate	13.665 \| fine	61.832 \| fine	5.23 \| good	0.471 \| good	10.317 \| good	0.399 \| good
2025-12-07T10:00:00.000Z	60 \| moderate	13.653 \| fine	62.265 \| fine	5.282 \| good	0.48 \| good	3.597 \| good	0.258 \| good
2025-12-07T11:00:00.000Z	73 \| moderate	20.534 \| fine	58.223 \| fine	5.149 \| good	0.508 \| good	3.217 \| good	0.253 \| good
2025-12-07T12:00:00.000Z	56 \| moderate	11.882 \| good	52.737 \| good	8.337 \| good	0.339 \| good	8.335 \| good	0.293 \| good
2025-12-07T13:00:00.000Z	49 \| good	9.472 \| good	42.44 \| good	7.85 \| good	0.414 \| good	5.766 \| good	0.216 \| good
2025-12-07T14:00:00.000Z	38 \| good	6.881 \| good	30.759 \| good	8.771 \| good	0.473 \| good	6.237 \| good	0.237 \| good
2025-12-07T15:00:00.000Z	33 \| good	5.691 \| good	25.13 \| good	8.706 \| good	0.434 \| good	6.825 \| good	0.218 \| good
2025-12-07T16:00:00.000Z	33 \| good	5.859 \| good	25.169 \| good	7.673 \| good	0.39 \| good	7.795 \| good	0.215 \| good
2025-12-07T17:00:00.000Z	38 \| good	7.497 \| good	33.003 \| good	7.765 \| good	0.404 \| good	7.297 \| good	0.224 \| good
2025-12-07T18:00:00.000Z	44 \| good	7.506 \| good	33.074 \| good	7.821 \| good	0.434 \| good	6.054 \| good	0.224 \| good
2025-12-07T19:00:00.000Z	44 \| good	8.085 \| good	35.681 \| good	8.893 \| good	0.533 \| good	5.511 \| good	0.317 \| good
2025-12-07T20:00:00.000Z	44 \| good	8.368 \| good	36.695 \| good	9.906 \| good	0.523 \| good	4.846 \| good	0.309 \| good
2025-12-07T21:00:00.000Z	52 \| moderate	10.24 \| good	45.924 \| good	10.936 \| good	0.578 \| good	4.604 \| good	0.216 \| good
2025-12-07T22:00:00.000Z	52 \| moderate	10.24 \| good	45.924 \| good	10.936 \| good	0.578 \| good	4.604 \| good	0.216 \| good
2025-12-06T11:00:00.000Z	56 \| moderate	12.429 \| fine	56.091 \| fine	4.899 \| good	2.212 \| good	20.879 \| good	0.416 \| good
2025-12-06T12:00:00.000Z	60 \| moderate	14.494 \| fine	64.61 \| fine	5.399 \| good	2.113 \| good	20.143 \| good	0.405 \| good
2025-12-06T13:00:00.000Z	56 \| moderate	11.73 \| good	52.039 \| good	6.001 \| good	2.267 \| good	20.534 \| good	0.411 \| good
2025-12-06T14:00:00.000Z	60 \| moderate	13.666 \| fine	61.169 \| fine	6.174 \| good	2.421 \| good	20.925 \| good	0.418 \| good
2025-12-06T15:00:00.000Z	58 \| moderate	13.082 \| fine	58.679 \| fine	7.214 \| good	2.574 \| good	21.316 \| good	0.424 \| good
2025-12-06T16:00:00.000Z	58 \| moderate	13.318 \| fine	59.261 \| fine	9.002 \| good	2.946 \| good	19.899 \| good	0.388 \| good
2025-12-06T17:00:00.000Z	62 \| moderate	15.32 \| fine	67.804 \| fine	11.214 \| good	3.317 \| good	18.482 \| good	0.352 \| good
2025-12-06T18:00:00.000Z	60 \| moderate	14.001 \| fine	63.032 \| fine	13.222 \| good	3.688 \| good	17.065 \| good	0.317 \| good
2025-12-06T19:00:00.000Z	64 \| moderate	15.958 \| fine	71.484 \| fine	15.357 \| good	3.622 \| good	15.306 \| good	0.282 \| good
2025-12-06T20:00:00.000Z	66 \| moderate	17.304 \| fine	76.147 \| fine	17.276 \| good	3.556 \| good	13.547 \| good	0.246 \| good
2025-12-06T21:00:00.000Z	67 \| moderate	18.194 \| fine	80.915 \| fine	15.735 \| good	3.489 \| good	11.788 \| good	0.211 \| good
2025-12-06T22:00:00.000Z	71 \| moderate	20.313 \| fine	89.103 \| fine	18.815 \| good	3.296 \| good	12.658 \| good	0.205 \| good
2025-12-06T23:00:00.000Z	71 \| moderate	19.62 \| fine	86.063 \| fine	18.908 \| good	3.102 \| good	13.528 \| good	0.199 \| good
2025-12-07T00:00:00.000Z	67 \| moderate	17.652 \| fine	78.283 \| fine	15.642 \| good	2.908 \| good	14.399 \| good	0.193 \| good
2025-12-07T01:00:00.000Z	66 \| moderate	17.436 \| fine	77.689 \| fine	9.087 \| good	2.935 \| good	18.056 \| good	0.254 \| good
2025-12-07T02:00:00.000Z	62 \| moderate	15.158 \| fine	67.405 \| fine	7.352 \| good	2.962 \| good	21.714 \| good	0.314 \| good
2025-12-07T03:00:00.000Z	64 \| moderate	16.46 \| fine	73.035 \| fine	6.741 \| good	2.988 \| good	25.371 \| good	0.375 \| good
2025-12-07T04:00:00.000Z	62 \| moderate	15.344 \| fine	68.195 \| fine	4.877 \| good	3.144 \| good	25.246 \| good	0.397 \| good
2025-12-07T05:00:00.000Z	64 \| moderate	15.832 \| fine	70.232 \| fine	4.866 \| good	3.3 \| good	25.12 \| good	0.42 \| good
2025-12-07T06:00:00.000Z	60 \| moderate	13.725 \| fine	61.451 \| fine	4.299 \| good	3.456 \| good	24.995 \| good	0.442 \| good
2025-12-07T07:00:00.000Z	58 \| moderate	12.74 \| fine	56.96 \| fine	3.836 \| good	3.225 \| good	23.803 \| good	0.432 \| good
2025-12-07T08:00:00.000Z	56 \| moderate	12.15 \| fine	53.883 \| good	3.606 \| good	2.994 \| good	22.611 \| good	0.422 \| good
2025-12-07T09:00:00.000Z	58 \| moderate	13.412 \| fine	59.779 \| fine	3.7 \| good	2.763 \| good	21.419 \| good	0.411 \| good
2025-12-07T10:00:00.000Z	62 \| moderate	14.565 \| fine	64.558 \| fine	4.358 \| good	2.628 \| good	20.772 \| good	0.392 \| good
2025-12-07T11:00:00.000Z	62 \| moderate	14.581 \| fine	65.217 \| fine	4.044 \| good	2.492 \| good	20.126 \| good	0.373 \| good
2025-12-07T12:00:00.000Z	67 \| moderate	17.54 \| fine	77.654 \| fine	3.788 \| good	2.357 \| good	19.479 \| good	0.355 \| good
2025-12-07T13:00:00.000Z	64 \| moderate	15.975 \| fine	71.506 \| fine	4.305 \| good	2.219 \| good	19.248 \| good	0.362 \| good
2025-12-07T14:00:00.000Z	69 \| moderate	18.868 \| fine	83.071 \| fine	3.45 \| good	2.081 \| good	19.017 \| good	0.369 \| good
2025-12-07T15:00:00.000Z	67 \| moderate	18.078 \| fine	80.298 \| fine	4.921 \| good	1.943 \| good	18.786 \| good	0.377 \| good
2025-12-07T16:00:00.000Z	64 \| moderate	16.057 \| fine	71.383 \| fine	6.439 \| good	2.141 \| good	17.774 \| good	0.382 \| good
2025-12-07T17:00:00.000Z	67 \| moderate	18.186 \| fine	79.861 \| fine	6.981 \| good	2.338 \| good	16.762 \| good	0.387 \| good
2025-12-07T18:00:00.000Z	69 \| moderate	19.074 \| fine	83.991 \| fine	7.452 \| good	2.535 \| good	15.75 \| good	0.392 \| good
2025-12-07T19:00:00.000Z	71 \| moderate	20.297 \| fine	89.488 \| fine	9.323 \| good	2.727 \| good	14.648 \| good	0.33 \| good
2025-12-07T20:00:00.000Z	69 \| moderate	18.514 \| fine	82.188 \| fine	12.819 \| good	2.919 \| good	13.546 \| good	0.267 \| good
2025-12-07T21:00:00.000Z	64 \| moderate	15.756 \| fine	69.708 \| fine	13.866 \| good	3.111 \| good	12.444 \| good	0.205 \| good
2025-12-07T22:00:00.000Z	62 \| moderate	15.495 \| fine	69.054 \| fine	14.924 \| good	2.863 \| good	13.259 \| good	0.199 \| good
2025-12-07T23:00:00.000Z	58 \| moderate	13.357 \| fine	60.216 \| fine	15.887 \| good	2.616 \| good	14.073 \| good	0.193 \| good
2025-12-08T00:00:00.000Z	56 \| moderate	12.167 \| fine	54.63 \| good	9.1 \| good	2.368 \| good	14.888 \| good	0.187 \| good
2025-12-08T01:00:00.000Z	56 \| moderate	12.308 \| fine	55.248 \| fine	5.582 \| good	2.26 \| good	17.334 \| good	0.221 \| good
2025-12-08T02:00:00.000Z	56 \| moderate	12.317 \| fine	54.771 \| good	5.908 \| good	2.152 \| good	19.78 \| good	0.256 \| good
2025-12-08T03:00:00.000Z	64 \| moderate	16.046 \| fine	71.078 \| fine	4.602 \| good	2.044 \| good	22.226 \| good	0.291 \| good
2025-12-08T04:00:00.000Z	64 \| moderate	15.646 \| fine	70.1 \| fine	4.06 \| good	2.056 \| good	21.663 \| good	0.3 \| good
2025-12-08T05:00:00.000Z	66 \| moderate	16.997 \| fine	75.776 \| fine	3.811 \| good	2.067 \| good	21.101 \| good	0.309 \| good
2025-12-08T06:00:00.000Z	69 \| moderate	19.252 \| fine	21.051 \| good	7.414 \| good	2.047 \| good	20.259 \| good	0.314 \| good
2025-12-08T07:00:00.000Z	64 \| moderate	15.726 \| fine	69.891 \| fine	4.113 \| good	1.986 \| good	19.977 \| good	0.311 \| good
2025-12-08T08:00:00.000Z	62 \| moderate	14.709 \| fine	65.57 \| fine	3.046 \| good	1.892 \| good	19.417 \| good	0.305 \| good
2025-12-08T09:00:00.000Z	62 \| moderate	15.465 \| fine	69.636 \| fine	2.235 \| good	1.798 \| good	18.856 \| good	0.298 \| good
2025-12-08T10:00:00.000Z	66 \| moderate	16.607 \| fine	74.068 \| fine	2.503 \| good	1.665 \| good	17.936 \| good	0.289 \| good

San Leandro

Empower business decisions with accurate air quality data

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

0.27ppm

How accurate is California, USA air quality data?

Air quality measurements for California, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.

Source: Ambee Data Sources

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Check live rankings of places in the USA affected by air pollution.

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Frequently asked questions

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

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

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

The worst air quality in San Leandro, California was recorded at 03:00:00 on 2025-12-07.

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

The best air quality in San Leandro, California was recorded at 03:00:00 on 2025-12-07.

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

The real-time air quality index in San Leandro, California is 52, currently categorized as Moderate.

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

The most common pollutant in San Leandro, California is PM2.5.

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

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

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

The measured PM_2.5 levels in San Leandro, California at present are 10.24 μg/m³.

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

The current PM₁₀ levels in San Leandro, California are 45.924 μg/m³.

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

The current carbon monoxide (CO) level in San Leandro, California is 0.216 ppm.

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

The current sulfur dioxide (SO₂) levels in San Leandro, California are 0.578 ppb.

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

The current ozone (O₃) levels at San Leandro, California is 10.936 ppm.

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

The current nitrogen dioxide (NO₂) levels at San Leandro, California is 4.604 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-12-05T23:00:00.000Z	66 \| moderate	16.54 \| fine	72.876 \| fine	10.381 \| good	0.502 \| good	12.565 \| good	0.3 \| good
2025-12-06T00:00:00.000Z	62 \| moderate	14.57 \| fine	64.579 \| fine	11.277 \| good	0.516 \| good	12.654 \| good	0.295 \| good
2025-12-06T01:00:00.000Z	67 \| moderate	17.959 \| fine	80.238 \| fine	9.464 \| good	0.476 \| good	14.091 \| good	0.295 \| good
2025-12-06T02:00:00.000Z	71 \| moderate	20.269 \| fine	89.184 \| fine	7.557 \| good	0.474 \| good	18.389 \| good	0.386 \| good
2025-12-06T03:00:00.000Z	77 \| moderate	22.556 \| fine	97.828 \| fine	6.49 \| good	0.456 \| good	20.214 \| good	0.394 \| good
2025-12-06T04:00:00.000Z	75 \| moderate	22.316 \| fine	96.771 \| fine	6.386 \| good	0.514 \| good	18.923 \| good	0.577 \| good
2025-12-06T05:00:00.000Z	75 \| moderate	21.64 \| fine	95.262 \| fine	4.491 \| good	0.523 \| good	18.058 \| good	0.573 \| good
2025-12-06T06:00:00.000Z	73 \| moderate	20.974 \| fine	91.622 \| fine	4.46 \| good	0.562 \| good	16.896 \| good	0.582 \| good
2025-12-06T07:00:00.000Z	71 \| moderate	19.746 \| fine	86.797 \| fine	2.532 \| good	0.589 \| good	15.255 \| good	0.4 \| good
2025-12-06T08:00:00.000Z	67 \| moderate	18.28 \| fine	80.867 \| fine	5.706 \| good	0.511 \| good	13.733 \| good	0.305 \| good
2025-12-06T09:00:00.000Z	67 \| moderate	18.258 \| fine	80.666 \| fine	5.651 \| good	0.513 \| good	13.641 \| good	0.297 \| good
2025-12-06T10:00:00.000Z	67 \| moderate	18.173 \| fine	80.667 \| fine	6.738 \| good	0.922 \| good	6.266 \| good	0.418 \| good
2025-12-06T11:00:00.000Z	56 \| moderate	8.79 \| good	65.068 \| fine	9.43 \| good	0.858 \| good	6.203 \| good	0.375 \| good
2025-12-06T12:00:00.000Z	58 \| moderate	13.052 \| fine	58.78 \| fine	12.039 \| good	0.305 \| good	9.318 \| good	0.219 \| good
2025-12-06T13:00:00.000Z	56 \| moderate	12.026 \| good	53.216 \| good	6.96 \| good	0.395 \| good	6.38 \| good	0.213 \| good
2025-12-06T14:00:00.000Z	54 \| moderate	11.208 \| good	48.938 \| good	7.015 \| good	0.507 \| good	6.672 \| good	0.203 \| good
2025-12-06T15:00:00.000Z	56 \| moderate	12.15 \| fine	54.236 \| good	6.93 \| good	0.392 \| good	8.517 \| good	0.208 \| good
2025-12-06T16:00:00.000Z	58 \| moderate	13.008 \| fine	59.396 \| fine	7.102 \| good	0.364 \| good	7.097 \| good	0.215 \| good
2025-12-06T17:00:00.000Z	60 \| moderate	14.235 \| fine	62.871 \| fine	8.963 \| good	0.413 \| good	8.032 \| good	0.3 \| good
2025-12-06T18:00:00.000Z	62 \| moderate	14.845 \| fine	66.7 \| fine	8.026 \| good	0.473 \| good	6.673 \| good	0.305 \| good
2025-12-06T19:00:00.000Z	62 \| moderate	14.861 \| fine	66.819 \| fine	9.985 \| good	0.466 \| good	6.11 \| good	0.312 \| good
2025-12-06T20:00:00.000Z	62 \| moderate	14.944 \| fine	66.875 \| fine	9.24 \| good	0.527 \| good	5.297 \| good	0.307 \| good
2025-12-06T21:00:00.000Z	58 \| moderate	13.046 \| fine	59.04 \| fine	10.215 \| good	0.656 \| good	5.141 \| good	0.313 \| good
2025-12-06T22:00:00.000Z	58 \| moderate	12.932 \| fine	58.343 \| fine	10.292 \| good	0.67 \| good	6.762 \| good	0.308 \| good
2025-12-06T23:00:00.000Z	60 \| moderate	13.817 \| fine	62.114 \| fine	10.347 \| good	0.597 \| good	8.827 \| good	0.305 \| good
2025-12-07T00:00:00.000Z	62 \| moderate	14.799 \| fine	65.075 \| fine	9.368 \| good	0.472 \| good	10.037 \| good	0.305 \| good
2025-12-07T01:00:00.000Z	62 \| moderate	14.683 \| fine	65.753 \| fine	8.505 \| good	0.442 \| good	7.588 \| good	0.304 \| good
2025-12-07T02:00:00.000Z	62 \| moderate	14.519 \| fine	65.107 \| fine	6.476 \| good	0.4 \| good	9.07 \| good	0.311 \| good
2025-12-07T03:00:00.000Z	62 \| moderate	15.215 \| fine	66.614 \| fine	5.496 \| good	0.427 \| good	10.102 \| good	0.309 \| good
2025-12-07T04:00:00.000Z	60 \| moderate	14.492 \| fine	63.629 \| fine	6.219 \| good	0.412 \| good	11.78 \| good	0.406 \| good
2025-12-07T05:00:00.000Z	62 \| moderate	14.542 \| fine	64.415 \| fine	5.304 \| good	0.453 \| good	12.363 \| good	0.409 \| good
2025-12-07T06:00:00.000Z	60 \| moderate	13.671 \| fine	59.703 \| fine	5.17 \| good	0.471 \| good	11.677 \| good	0.497 \| good
2025-12-07T07:00:00.000Z	60 \| moderate	14.131 \| fine	63.739 \| fine	5.179 \| good	0.469 \| good	10.029 \| good	0.406 \| good
2025-12-07T08:00:00.000Z	60 \| moderate	13.657 \| fine	61.654 \| fine	5.336 \| good	0.472 \| good	10.35 \| good	0.41 \| good
2025-12-07T09:00:00.000Z	60 \| moderate	13.665 \| fine	61.832 \| fine	5.23 \| good	0.471 \| good	10.317 \| good	0.399 \| good
2025-12-07T10:00:00.000Z	60 \| moderate	13.653 \| fine	62.265 \| fine	5.282 \| good	0.48 \| good	3.597 \| good	0.258 \| good
2025-12-07T11:00:00.000Z	73 \| moderate	20.534 \| fine	58.223 \| fine	5.149 \| good	0.508 \| good	3.217 \| good	0.253 \| good
2025-12-07T12:00:00.000Z	56 \| moderate	11.882 \| good	52.737 \| good	8.337 \| good	0.339 \| good	8.335 \| good	0.293 \| good
2025-12-07T13:00:00.000Z	49 \| good	9.472 \| good	42.44 \| good	7.85 \| good	0.414 \| good	5.766 \| good	0.216 \| good
2025-12-07T14:00:00.000Z	38 \| good	6.881 \| good	30.759 \| good	8.771 \| good	0.473 \| good	6.237 \| good	0.237 \| good
2025-12-07T15:00:00.000Z	33 \| good	5.691 \| good	25.13 \| good	8.706 \| good	0.434 \| good	6.825 \| good	0.218 \| good
2025-12-07T16:00:00.000Z	33 \| good	5.859 \| good	25.169 \| good	7.673 \| good	0.39 \| good	7.795 \| good	0.215 \| good
2025-12-07T17:00:00.000Z	38 \| good	7.497 \| good	33.003 \| good	7.765 \| good	0.404 \| good	7.297 \| good	0.224 \| good
2025-12-07T18:00:00.000Z	44 \| good	7.506 \| good	33.074 \| good	7.821 \| good	0.434 \| good	6.054 \| good	0.224 \| good
2025-12-07T19:00:00.000Z	44 \| good	8.085 \| good	35.681 \| good	8.893 \| good	0.533 \| good	5.511 \| good	0.317 \| good
2025-12-07T20:00:00.000Z	44 \| good	8.368 \| good	36.695 \| good	9.906 \| good	0.523 \| good	4.846 \| good	0.309 \| good
2025-12-07T21:00:00.000Z	52 \| moderate	10.24 \| good	45.924 \| good	10.936 \| good	0.578 \| good	4.604 \| good	0.216 \| good
2025-12-07T22:00:00.000Z	52 \| moderate	10.24 \| good	45.924 \| good	10.936 \| good	0.578 \| good	4.604 \| good	0.216 \| good
2025-12-06T11:00:00.000Z	56 \| moderate	12.429 \| fine	56.091 \| fine	4.899 \| good	2.212 \| good	20.879 \| good	0.416 \| good
2025-12-06T12:00:00.000Z	60 \| moderate	14.494 \| fine	64.61 \| fine	5.399 \| good	2.113 \| good	20.143 \| good	0.405 \| good
2025-12-06T13:00:00.000Z	56 \| moderate	11.73 \| good	52.039 \| good	6.001 \| good	2.267 \| good	20.534 \| good	0.411 \| good
2025-12-06T14:00:00.000Z	60 \| moderate	13.666 \| fine	61.169 \| fine	6.174 \| good	2.421 \| good	20.925 \| good	0.418 \| good
2025-12-06T15:00:00.000Z	58 \| moderate	13.082 \| fine	58.679 \| fine	7.214 \| good	2.574 \| good	21.316 \| good	0.424 \| good
2025-12-06T16:00:00.000Z	58 \| moderate	13.318 \| fine	59.261 \| fine	9.002 \| good	2.946 \| good	19.899 \| good	0.388 \| good
2025-12-06T17:00:00.000Z	62 \| moderate	15.32 \| fine	67.804 \| fine	11.214 \| good	3.317 \| good	18.482 \| good	0.352 \| good
2025-12-06T18:00:00.000Z	60 \| moderate	14.001 \| fine	63.032 \| fine	13.222 \| good	3.688 \| good	17.065 \| good	0.317 \| good
2025-12-06T19:00:00.000Z	64 \| moderate	15.958 \| fine	71.484 \| fine	15.357 \| good	3.622 \| good	15.306 \| good	0.282 \| good
2025-12-06T20:00:00.000Z	66 \| moderate	17.304 \| fine	76.147 \| fine	17.276 \| good	3.556 \| good	13.547 \| good	0.246 \| good
2025-12-06T21:00:00.000Z	67 \| moderate	18.194 \| fine	80.915 \| fine	15.735 \| good	3.489 \| good	11.788 \| good	0.211 \| good
2025-12-06T22:00:00.000Z	71 \| moderate	20.313 \| fine	89.103 \| fine	18.815 \| good	3.296 \| good	12.658 \| good	0.205 \| good
2025-12-06T23:00:00.000Z	71 \| moderate	19.62 \| fine	86.063 \| fine	18.908 \| good	3.102 \| good	13.528 \| good	0.199 \| good
2025-12-07T00:00:00.000Z	67 \| moderate	17.652 \| fine	78.283 \| fine	15.642 \| good	2.908 \| good	14.399 \| good	0.193 \| good
2025-12-07T01:00:00.000Z	66 \| moderate	17.436 \| fine	77.689 \| fine	9.087 \| good	2.935 \| good	18.056 \| good	0.254 \| good
2025-12-07T02:00:00.000Z	62 \| moderate	15.158 \| fine	67.405 \| fine	7.352 \| good	2.962 \| good	21.714 \| good	0.314 \| good
2025-12-07T03:00:00.000Z	64 \| moderate	16.46 \| fine	73.035 \| fine	6.741 \| good	2.988 \| good	25.371 \| good	0.375 \| good
2025-12-07T04:00:00.000Z	62 \| moderate	15.344 \| fine	68.195 \| fine	4.877 \| good	3.144 \| good	25.246 \| good	0.397 \| good
2025-12-07T05:00:00.000Z	64 \| moderate	15.832 \| fine	70.232 \| fine	4.866 \| good	3.3 \| good	25.12 \| good	0.42 \| good
2025-12-07T06:00:00.000Z	60 \| moderate	13.725 \| fine	61.451 \| fine	4.299 \| good	3.456 \| good	24.995 \| good	0.442 \| good
2025-12-07T07:00:00.000Z	58 \| moderate	12.74 \| fine	56.96 \| fine	3.836 \| good	3.225 \| good	23.803 \| good	0.432 \| good
2025-12-07T08:00:00.000Z	56 \| moderate	12.15 \| fine	53.883 \| good	3.606 \| good	2.994 \| good	22.611 \| good	0.422 \| good
2025-12-07T09:00:00.000Z	58 \| moderate	13.412 \| fine	59.779 \| fine	3.7 \| good	2.763 \| good	21.419 \| good	0.411 \| good
2025-12-07T10:00:00.000Z	62 \| moderate	14.565 \| fine	64.558 \| fine	4.358 \| good	2.628 \| good	20.772 \| good	0.392 \| good
2025-12-07T11:00:00.000Z	62 \| moderate	14.581 \| fine	65.217 \| fine	4.044 \| good	2.492 \| good	20.126 \| good	0.373 \| good
2025-12-07T12:00:00.000Z	67 \| moderate	17.54 \| fine	77.654 \| fine	3.788 \| good	2.357 \| good	19.479 \| good	0.355 \| good
2025-12-07T13:00:00.000Z	64 \| moderate	15.975 \| fine	71.506 \| fine	4.305 \| good	2.219 \| good	19.248 \| good	0.362 \| good
2025-12-07T14:00:00.000Z	69 \| moderate	18.868 \| fine	83.071 \| fine	3.45 \| good	2.081 \| good	19.017 \| good	0.369 \| good
2025-12-07T15:00:00.000Z	67 \| moderate	18.078 \| fine	80.298 \| fine	4.921 \| good	1.943 \| good	18.786 \| good	0.377 \| good
2025-12-07T16:00:00.000Z	64 \| moderate	16.057 \| fine	71.383 \| fine	6.439 \| good	2.141 \| good	17.774 \| good	0.382 \| good
2025-12-07T17:00:00.000Z	67 \| moderate	18.186 \| fine	79.861 \| fine	6.981 \| good	2.338 \| good	16.762 \| good	0.387 \| good
2025-12-07T18:00:00.000Z	69 \| moderate	19.074 \| fine	83.991 \| fine	7.452 \| good	2.535 \| good	15.75 \| good	0.392 \| good
2025-12-07T19:00:00.000Z	71 \| moderate	20.297 \| fine	89.488 \| fine	9.323 \| good	2.727 \| good	14.648 \| good	0.33 \| good
2025-12-07T20:00:00.000Z	69 \| moderate	18.514 \| fine	82.188 \| fine	12.819 \| good	2.919 \| good	13.546 \| good	0.267 \| good
2025-12-07T21:00:00.000Z	64 \| moderate	15.756 \| fine	69.708 \| fine	13.866 \| good	3.111 \| good	12.444 \| good	0.205 \| good
2025-12-07T22:00:00.000Z	62 \| moderate	15.495 \| fine	69.054 \| fine	14.924 \| good	2.863 \| good	13.259 \| good	0.199 \| good
2025-12-07T23:00:00.000Z	58 \| moderate	13.357 \| fine	60.216 \| fine	15.887 \| good	2.616 \| good	14.073 \| good	0.193 \| good
2025-12-08T00:00:00.000Z	56 \| moderate	12.167 \| fine	54.63 \| good	9.1 \| good	2.368 \| good	14.888 \| good	0.187 \| good
2025-12-08T01:00:00.000Z	56 \| moderate	12.308 \| fine	55.248 \| fine	5.582 \| good	2.26 \| good	17.334 \| good	0.221 \| good
2025-12-08T02:00:00.000Z	56 \| moderate	12.317 \| fine	54.771 \| good	5.908 \| good	2.152 \| good	19.78 \| good	0.256 \| good
2025-12-08T03:00:00.000Z	64 \| moderate	16.046 \| fine	71.078 \| fine	4.602 \| good	2.044 \| good	22.226 \| good	0.291 \| good
2025-12-08T04:00:00.000Z	64 \| moderate	15.646 \| fine	70.1 \| fine	4.06 \| good	2.056 \| good	21.663 \| good	0.3 \| good
2025-12-08T05:00:00.000Z	66 \| moderate	16.997 \| fine	75.776 \| fine	3.811 \| good	2.067 \| good	21.101 \| good	0.309 \| good
2025-12-08T06:00:00.000Z	69 \| moderate	19.252 \| fine	21.051 \| good	7.414 \| good	2.047 \| good	20.259 \| good	0.314 \| good
2025-12-08T07:00:00.000Z	64 \| moderate	15.726 \| fine	69.891 \| fine	4.113 \| good	1.986 \| good	19.977 \| good	0.311 \| good
2025-12-08T08:00:00.000Z	62 \| moderate	14.709 \| fine	65.57 \| fine	3.046 \| good	1.892 \| good	19.417 \| good	0.305 \| good
2025-12-08T09:00:00.000Z	62 \| moderate	15.465 \| fine	69.636 \| fine	2.235 \| good	1.798 \| good	18.856 \| good	0.298 \| good
2025-12-08T10:00:00.000Z	66 \| moderate	16.607 \| fine	74.068 \| fine	2.503 \| good	1.665 \| good	17.936 \| good	0.289 \| good

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

Common air pollutants in San Leandro, California

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live San Leandro, California air quality forecast and history

Empower business decisions with accurate air quality data

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

Air quality in nearby cities

Ashland, California

San Lorenzo, California

Cherryland, California

Castro Valley, California

Hayward, California

Fairview, 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 Leandro, California updated?

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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