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

The current PM10 levels in San Leandro, California are 51.32 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 0.757 ppb.

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

The current ozone (O3) levels at San Leandro, California is 17.804 ppm.

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

The current nitrogen dioxide (NO2) levels at San Leandro, California is 7.441 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 11.64 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)

11.64 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

51.32 μg/m³

155

255

425

605+

Ozone (O₃)

17.80 ppb

201

201+

Sulfur Dioxide (SO₂)

0.76 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

7.44 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.30 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
2026-01-22T00:00:00.000Z	58 \| moderate	13.451 \| fine	61.204 \| fine	10.044 \| good	0.856 \| good	13.627 \| good	0.407 \| good
2026-01-22T01:00:00.000Z	52 \| moderate	9.655 \| good	43.526 \| good	13.582 \| good	0.81 \| good	8.952 \| good	0.316 \| good
2026-01-22T02:00:00.000Z	49 \| good	8.807 \| good	38.743 \| good	12.461 \| good	0.765 \| good	9.112 \| good	0.314 \| good
2026-01-22T03:00:00.000Z	52 \| moderate	9.825 \| good	44.212 \| good	9.7 \| good	0.81 \| good	19.09 \| good	0.494 \| good
2026-01-22T04:00:00.000Z	52 \| moderate	9.852 \| good	44.71 \| good	11.534 \| good	0.764 \| good	14.059 \| good	0.407 \| good
2026-01-22T05:00:00.000Z	49 \| good	8.875 \| good	38.749 \| good	11.509 \| good	0.76 \| good	11.612 \| good	0.318 \| good
2026-01-22T06:00:00.000Z	52 \| moderate	9.774 \| good	43.903 \| good	9.533 \| good	0.814 \| good	14.789 \| good	0.403 \| good
2026-01-22T07:00:00.000Z	52 \| moderate	10.224 \| good	46.05 \| good	8.762 \| good	0.8 \| good	22.635 \| good	0.494 \| good
2026-01-22T08:00:00.000Z	52 \| moderate	9.536 \| good	41.067 \| good	8.725 \| good	0.854 \| good	20.539 \| good	0.407 \| good
2026-01-22T09:00:00.000Z	52 \| moderate	9.919 \| good	44.782 \| good	5.942 \| good	0.794 \| good	22.744 \| good	0.588 \| good
2026-01-22T10:00:00.000Z	49 \| good	9.416 \| good	40.875 \| good	5.019 \| good	0.809 \| good	15.875 \| good	0.415 \| good
2026-01-22T11:00:00.000Z	52 \| moderate	10.391 \| good	46.545 \| good	5.999 \| good	0.78 \| good	15.907 \| good	0.328 \| good
2026-01-22T12:00:00.000Z	52 \| moderate	10.251 \| good	45.245 \| good	5.894 \| good	0.736 \| good	15.809 \| good	0.328 \| good
2026-01-22T13:00:00.000Z	52 \| moderate	9.922 \| good	44.442 \| good	4.046 \| good	0.785 \| good	18.618 \| good	0.416 \| good
2026-01-22T14:00:00.000Z	52 \| moderate	10.212 \| good	45.266 \| good	3.247 \| good	0.731 \| good	18.634 \| good	0.41 \| good
2026-01-22T15:00:00.000Z	54 \| moderate	10.762 \| good	47.913 \| good	2.422 \| good	0.779 \| good	15.647 \| good	0.514 \| good
2026-01-22T16:00:00.000Z	54 \| moderate	10.52 \| good	46.997 \| good	2.424 \| good	0.743 \| good	15.209 \| good	0.537 \| good
2026-01-22T17:00:00.000Z	52 \| moderate	10.375 \| good	46.013 \| good	2.437 \| good	0.813 \| good	15.638 \| good	0.541 \| good
2026-01-22T18:00:00.000Z	54 \| moderate	10.558 \| good	45.985 \| good	4.314 \| good	0.955 \| good	13.105 \| good	0.513 \| good
2026-01-22T19:00:00.000Z	54 \| moderate	11.415 \| good	50.278 \| good	6.276 \| good	0.918 \| good	12.34 \| good	0.508 \| good
2026-01-22T20:00:00.000Z	58 \| moderate	12.553 \| fine	56.133 \| fine	6.2 \| good	1.033 \| good	12.126 \| good	0.501 \| good
2026-01-22T21:00:00.000Z	64 \| moderate	15.572 \| fine	69.324 \| fine	6.303 \| good	0.951 \| good	13.781 \| good	0.496 \| good
2026-01-22T22:00:00.000Z	64 \| moderate	15.745 \| fine	68.481 \| fine	6.605 \| good	0.769 \| good	12.972 \| good	0.391 \| good
2026-01-22T23:00:00.000Z	60 \| moderate	13.979 \| fine	63.572 \| fine	15.166 \| good	0.939 \| good	17.661 \| good	0.412 \| good
2026-01-23T00:00:00.000Z	60 \| moderate	13.862 \| fine	62.203 \| fine	16.164 \| good	0.857 \| good	14.147 \| good	0.426 \| good
2026-01-23T01:00:00.000Z	54 \| moderate	11.396 \| good	50.104 \| good	20.335 \| good	0.785 \| good	12.554 \| good	0.342 \| good
2026-01-23T02:00:00.000Z	52 \| moderate	10.358 \| good	46.478 \| good	21.608 \| good	1.653 \| good	12.39 \| good	0.395 \| good
2026-01-23T03:00:00.000Z	52 \| moderate	10.172 \| good	45.523 \| good	20.76 \| good	0.925 \| good	16.259 \| good	0.353 \| good
2026-01-23T04:00:00.000Z	58 \| moderate	12.911 \| fine	58.203 \| fine	12.4 \| good	0.714 \| good	15.506 \| good	0.326 \| good
2026-01-23T05:00:00.000Z	56 \| moderate	11.958 \| good	53.266 \| good	12.99 \| good	0.606 \| good	9.749 \| good	0.389 \| good
2026-01-23T06:00:00.000Z	56 \| moderate	12.02 \| good	53.635 \| good	10.144 \| good	0.509 \| good	8.51 \| good	0.376 \| good
2026-01-23T07:00:00.000Z	54 \| moderate	10.992 \| good	49.374 \| good	5.665 \| good	0.436 \| good	19.611 \| good	0.58 \| good
2026-01-23T08:00:00.000Z	56 \| moderate	11.797 \| good	52.847 \| good	6.474 \| good	0.472 \| good	15.955 \| good	0.486 \| good
2026-01-23T09:00:00.000Z	56 \| moderate	11.968 \| good	52.992 \| good	5.498 \| good	0.494 \| good	14.875 \| good	0.489 \| good
2026-01-23T10:00:00.000Z	54 \| moderate	11.389 \| good	49.777 \| good	5.406 \| good	0.573 \| good	12.819 \| good	0.498 \| good
2026-01-23T11:00:00.000Z	52 \| moderate	9.889 \| good	44.532 \| good	5.39 \| good	0.583 \| good	12.864 \| good	0.585 \| good
2026-01-23T12:00:00.000Z	52 \| moderate	9.803 \| good	43.358 \| good	5.364 \| good	0.361 \| good	12.769 \| good	0.583 \| good
2026-01-23T13:00:00.000Z	49 \| good	9.23 \| good	40.718 \| good	6.202 \| good	0.885 \| good	11.149 \| good	0.31 \| good
2026-01-23T14:00:00.000Z	44 \| good	8.154 \| good	35.392 \| good	7.132 \| good	0.865 \| good	11.496 \| good	0.302 \| good
2026-01-23T15:00:00.000Z	44 \| good	8.304 \| good	36.404 \| good	9.093 \| good	0.86 \| good	11.115 \| good	0.304 \| good
2026-01-23T16:00:00.000Z	38 \| good	7.31 \| good	32.428 \| good	13.916 \| good	0.691 \| good	9.238 \| good	0.303 \| good
2026-01-23T17:00:00.000Z	38 \| good	6.815 \| good	31.566 \| good	12.077 \| good	0.534 \| good	11.239 \| good	0.301 \| good
2026-01-23T18:00:00.000Z	44 \| good	8.444 \| good	37.08 \| good	12.233 \| good	0.554 \| good	10.544 \| good	0.296 \| good
2026-01-23T19:00:00.000Z	49 \| good	9.286 \| good	41.883 \| good	15.706 \| good	0.684 \| good	7.373 \| good	0.299 \| good
2026-01-23T20:00:00.000Z	58 \| moderate	12.906 \| fine	58.003 \| fine	16.777 \| good	0.938 \| good	8.502 \| good	0.299 \| good
2026-01-23T21:00:00.000Z	58 \| moderate	12.911 \| fine	58.615 \| fine	16.85 \| good	0.885 \| good	7.953 \| good	0.302 \| good
2026-01-23T22:00:00.000Z	56 \| moderate	11.64 \| good	51.32 \| good	17.804 \| good	0.757 \| good	7.441 \| good	0.302 \| good
2026-01-23T23:00:00.000Z	56 \| moderate	11.64 \| good	51.32 \| good	17.804 \| good	0.757 \| good	7.441 \| good	0.302 \| good
2026-01-24T00:00:00.000Z	88 \| moderate	28.88 \| fine	125.543 \| fine	23.865 \| good	2.975 \| good	11.224 \| good	0.235 \| good
2026-01-24T01:00:00.000Z	77 \| moderate	22.953 \| fine	100.624 \| fine	12.987 \| good	2.969 \| good	16.42 \| good	0.283 \| good
2026-01-24T02:00:00.000Z	75 \| moderate	22.409 \| fine	98.478 \| fine	12.959 \| good	2.963 \| good	21.616 \| good	0.331 \| good
2026-01-24T03:00:00.000Z	69 \| moderate	19.377 \| fine	85.7 \| fine	15.615 \| good	2.956 \| good	26.812 \| good	0.378 \| good
2026-01-24T04:00:00.000Z	71 \| moderate	19.544 \| fine	86.004 \| fine	14.58 \| good	3.132 \| good	27.226 \| good	0.403 \| good
2026-01-24T05:00:00.000Z	71 \| moderate	19.508 \| fine	86.254 \| fine	11.403 \| good	3.307 \| good	27.639 \| good	0.428 \| good
2026-01-24T06:00:00.000Z	71 \| moderate	19.891 \| fine	87.954 \| fine	10.127 \| good	3.483 \| good	28.052 \| good	0.453 \| good
2026-01-24T07:00:00.000Z	69 \| moderate	19.361 \| fine	84.959 \| fine	8.676 \| good	3.285 \| good	27.035 \| good	0.444 \| good
2026-01-24T08:00:00.000Z	67 \| moderate	18.298 \| fine	80.874 \| fine	9.138 \| good	3.087 \| good	26.019 \| good	0.435 \| good
2026-01-24T09:00:00.000Z	69 \| moderate	19.046 \| fine	83.717 \| fine	7.28 \| good	2.888 \| good	25.002 \| good	0.426 \| good
2026-01-24T10:00:00.000Z	66 \| moderate	17.333 \| fine	76.408 \| fine	8.358 \| good	2.68 \| good	23.763 \| good	0.412 \| good
2026-01-24T11:00:00.000Z	62 \| moderate	15.486 \| fine	69.092 \| fine	9.179 \| good	2.472 \| good	22.524 \| good	0.398 \| good
2026-01-24T12:00:00.000Z	62 \| moderate	14.628 \| fine	64.815 \| fine	6.945 \| good	2.264 \| good	21.284 \| good	0.384 \| good
2026-01-24T13:00:00.000Z	60 \| moderate	14.221 \| fine	63.561 \| fine	6.272 \| good	2.336 \| good	20.934 \| good	0.358 \| good
2026-01-24T14:00:00.000Z	52 \| moderate	9.623 \| good	42.311 \| good	7.569 \| good	2.408 \| good	20.584 \| good	0.333 \| good
2026-01-24T15:00:00.000Z	52 \| moderate	9.908 \| good	43.847 \| good	9.834 \| good	2.48 \| good	20.234 \| good	0.308 \| good
2026-01-24T16:00:00.000Z	49 \| good	9.178 \| good	40.45 \| good	14.65 \| good	2.141 \| good	17.265 \| good	0.279 \| good
2026-01-24T17:00:00.000Z	49 \| good	8.699 \| good	38.513 \| good	21 \| good	1.803 \| good	14.296 \| good	0.251 \| good
2026-01-24T18:00:00.000Z	44 \| good	8.145 \| good	35.881 \| good	24.795 \| good	1.464 \| good	11.327 \| good	0.223 \| good
2026-01-24T19:00:00.000Z	49 \| good	9.177 \| good	40.571 \| good	26.705 \| good	1.26 \| good	8.822 \| good	0.196 \| good
2026-01-24T20:00:00.000Z	33 \| good	6.036 \| good	26.099 \| good	31.25 \| good	1.055 \| good	6.318 \| good	0.17 \| good
2026-01-24T21:00:00.000Z	31 \| good	2.515 \| good	10.213 \| good	32.732 \| good	0.851 \| good	3.813 \| good	0.143 \| good
2026-01-24T22:00:00.000Z	31 \| good	1.1 \| good	4.798 \| good	33.349 \| good	0.844 \| good	4.195 \| good	0.143 \| good
2026-01-24T23:00:00.000Z	30 \| good	1.614 \| good	6.864 \| good	32.486 \| good	0.838 \| good	4.577 \| good	0.144 \| good
2026-01-25T00:00:00.000Z	30 \| good	2.112 \| good	8.758 \| good	31.565 \| good	0.831 \| good	4.959 \| good	0.144 \| good
2026-01-25T01:00:00.000Z	24 \| good	1.635 \| good	6.858 \| good	26.005 \| good	0.97 \| good	11.14 \| good	0.18 \| good
2026-01-25T02:00:00.000Z	19 \| good	2.606 \| good	10.5 \| good	20.605 \| good	1.109 \| good	17.321 \| good	0.216 \| good
2026-01-25T03:00:00.000Z	23 \| good	3.317 \| good	14.213 \| good	19.138 \| good	1.249 \| good	23.502 \| good	0.252 \| good
2026-01-25T04:00:00.000Z	27 \| good	4.586 \| good	19.69 \| good	16.683 \| good	1.318 \| good	24.098 \| good	0.259 \| good
2026-01-25T05:00:00.000Z	38 \| good	7.453 \| good	33.06 \| good	13.943 \| good	1.388 \| good	24.693 \| good	0.265 \| good
2026-01-25T06:00:00.000Z	38 \| good	6.828 \| good	30.055 \| good	12.402 \| good	1.458 \| good	25.288 \| good	0.272 \| good
2026-01-25T07:00:00.000Z	33 \| good	5.996 \| good	26.25 \| good	13.169 \| good	1.323 \| good	24.479 \| good	0.27 \| good
2026-01-25T08:00:00.000Z	38 \| good	6.811 \| good	30.059 \| good	14.466 \| good	1.189 \| good	23.67 \| good	0.268 \| good
2026-01-25T09:00:00.000Z	38 \| good	7.285 \| good	32.013 \| good	15.31 \| good	1.054 \| good	22.861 \| good	0.267 \| good
2026-01-25T10:00:00.000Z	38 \| good	6.906 \| good	30.732 \| good	15.637 \| good	0.973 \| good	21.715 \| good	0.257 \| good
2026-01-25T11:00:00.000Z	54 \| moderate	11.4 \| good	50.855 \| good	15.066 \| good	0.891 \| good	20.569 \| good	0.247 \| good
2026-01-25T12:00:00.000Z	52 \| moderate	10.072 \| good	44.779 \| good	13.979 \| good	0.809 \| good	19.423 \| good	0.237 \| good
2026-01-25T13:00:00.000Z	44 \| good	8.416 \| good	37.051 \| good	12.477 \| good	0.884 \| good	19.498 \| good	0.237 \| good
2026-01-25T14:00:00.000Z	22 \| good	4.344 \| good	18.662 \| good	11.958 \| good	0.959 \| good	19.573 \| good	0.236 \| good
2026-01-25T15:00:00.000Z	27 \| good	5.138 \| good	22.536 \| good	12.656 \| good	1.034 \| good	19.648 \| good	0.236 \| good
2026-01-25T16:00:00.000Z	33 \| good	5.611 \| good	24.212 \| good	13.421 \| good	1.135 \| good	18.077 \| good	0.246 \| good
2026-01-25T17:00:00.000Z	49 \| good	8.668 \| good	38.201 \| good	13.609 \| good	1.237 \| good	16.506 \| good	0.255 \| good
2026-01-25T18:00:00.000Z	49 \| good	8.71 \| good	38.175 \| good	16.646 \| good	1.338 \| good	14.935 \| good	0.265 \| good
2026-01-25T19:00:00.000Z	52 \| moderate	9.661 \| good	42.847 \| good	18.767 \| good	1.43 \| good	13.128 \| good	0.246 \| good
2026-01-25T20:00:00.000Z	44 \| good	8.459 \| good	37.449 \| good	19.035 \| good	1.521 \| good	11.32 \| good	0.227 \| good
2026-01-25T21:00:00.000Z	44 \| good	7.596 \| good	33.315 \| good	20.34 \| good	1.612 \| good	9.512 \| good	0.209 \| good
2026-01-25T22:00:00.000Z	38 \| good	7.13 \| good	31.357 \| good	22.811 \| good	1.641 \| good	10.935 \| good	0.214 \| good
2026-01-25T23:00:00.000Z	49 \| good	8.645 \| good	37.983 \| good	25.517 \| good	1.669 \| good	12.358 \| good	0.22 \| good

San Leandro

Empower business decisions with accurate air quality data

San Leandro, 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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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 12:00:00 on 2026-01-23.

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 05:00:00 on 2026-01-23.

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

The real-time air quality index in San Leandro, California is 56, 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 11.64 μg/m³.

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

The current PM₁₀ levels in San Leandro, California are 51.32 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 0.302 ppm.

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

The current sulfur dioxide (SO₂) levels in San Leandro, California are 0.757 ppb.

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

The current ozone (O₃) levels at San Leandro, California is 17.804 ppm.

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

The current nitrogen dioxide (NO₂) levels at San Leandro, California is 7.441 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-01-22T00:00:00.000Z	58 \| moderate	13.451 \| fine	61.204 \| fine	10.044 \| good	0.856 \| good	13.627 \| good	0.407 \| good
2026-01-22T01:00:00.000Z	52 \| moderate	9.655 \| good	43.526 \| good	13.582 \| good	0.81 \| good	8.952 \| good	0.316 \| good
2026-01-22T02:00:00.000Z	49 \| good	8.807 \| good	38.743 \| good	12.461 \| good	0.765 \| good	9.112 \| good	0.314 \| good
2026-01-22T03:00:00.000Z	52 \| moderate	9.825 \| good	44.212 \| good	9.7 \| good	0.81 \| good	19.09 \| good	0.494 \| good
2026-01-22T04:00:00.000Z	52 \| moderate	9.852 \| good	44.71 \| good	11.534 \| good	0.764 \| good	14.059 \| good	0.407 \| good
2026-01-22T05:00:00.000Z	49 \| good	8.875 \| good	38.749 \| good	11.509 \| good	0.76 \| good	11.612 \| good	0.318 \| good
2026-01-22T06:00:00.000Z	52 \| moderate	9.774 \| good	43.903 \| good	9.533 \| good	0.814 \| good	14.789 \| good	0.403 \| good
2026-01-22T07:00:00.000Z	52 \| moderate	10.224 \| good	46.05 \| good	8.762 \| good	0.8 \| good	22.635 \| good	0.494 \| good
2026-01-22T08:00:00.000Z	52 \| moderate	9.536 \| good	41.067 \| good	8.725 \| good	0.854 \| good	20.539 \| good	0.407 \| good
2026-01-22T09:00:00.000Z	52 \| moderate	9.919 \| good	44.782 \| good	5.942 \| good	0.794 \| good	22.744 \| good	0.588 \| good
2026-01-22T10:00:00.000Z	49 \| good	9.416 \| good	40.875 \| good	5.019 \| good	0.809 \| good	15.875 \| good	0.415 \| good
2026-01-22T11:00:00.000Z	52 \| moderate	10.391 \| good	46.545 \| good	5.999 \| good	0.78 \| good	15.907 \| good	0.328 \| good
2026-01-22T12:00:00.000Z	52 \| moderate	10.251 \| good	45.245 \| good	5.894 \| good	0.736 \| good	15.809 \| good	0.328 \| good
2026-01-22T13:00:00.000Z	52 \| moderate	9.922 \| good	44.442 \| good	4.046 \| good	0.785 \| good	18.618 \| good	0.416 \| good
2026-01-22T14:00:00.000Z	52 \| moderate	10.212 \| good	45.266 \| good	3.247 \| good	0.731 \| good	18.634 \| good	0.41 \| good
2026-01-22T15:00:00.000Z	54 \| moderate	10.762 \| good	47.913 \| good	2.422 \| good	0.779 \| good	15.647 \| good	0.514 \| good
2026-01-22T16:00:00.000Z	54 \| moderate	10.52 \| good	46.997 \| good	2.424 \| good	0.743 \| good	15.209 \| good	0.537 \| good
2026-01-22T17:00:00.000Z	52 \| moderate	10.375 \| good	46.013 \| good	2.437 \| good	0.813 \| good	15.638 \| good	0.541 \| good
2026-01-22T18:00:00.000Z	54 \| moderate	10.558 \| good	45.985 \| good	4.314 \| good	0.955 \| good	13.105 \| good	0.513 \| good
2026-01-22T19:00:00.000Z	54 \| moderate	11.415 \| good	50.278 \| good	6.276 \| good	0.918 \| good	12.34 \| good	0.508 \| good
2026-01-22T20:00:00.000Z	58 \| moderate	12.553 \| fine	56.133 \| fine	6.2 \| good	1.033 \| good	12.126 \| good	0.501 \| good
2026-01-22T21:00:00.000Z	64 \| moderate	15.572 \| fine	69.324 \| fine	6.303 \| good	0.951 \| good	13.781 \| good	0.496 \| good
2026-01-22T22:00:00.000Z	64 \| moderate	15.745 \| fine	68.481 \| fine	6.605 \| good	0.769 \| good	12.972 \| good	0.391 \| good
2026-01-22T23:00:00.000Z	60 \| moderate	13.979 \| fine	63.572 \| fine	15.166 \| good	0.939 \| good	17.661 \| good	0.412 \| good
2026-01-23T00:00:00.000Z	60 \| moderate	13.862 \| fine	62.203 \| fine	16.164 \| good	0.857 \| good	14.147 \| good	0.426 \| good
2026-01-23T01:00:00.000Z	54 \| moderate	11.396 \| good	50.104 \| good	20.335 \| good	0.785 \| good	12.554 \| good	0.342 \| good
2026-01-23T02:00:00.000Z	52 \| moderate	10.358 \| good	46.478 \| good	21.608 \| good	1.653 \| good	12.39 \| good	0.395 \| good
2026-01-23T03:00:00.000Z	52 \| moderate	10.172 \| good	45.523 \| good	20.76 \| good	0.925 \| good	16.259 \| good	0.353 \| good
2026-01-23T04:00:00.000Z	58 \| moderate	12.911 \| fine	58.203 \| fine	12.4 \| good	0.714 \| good	15.506 \| good	0.326 \| good
2026-01-23T05:00:00.000Z	56 \| moderate	11.958 \| good	53.266 \| good	12.99 \| good	0.606 \| good	9.749 \| good	0.389 \| good
2026-01-23T06:00:00.000Z	56 \| moderate	12.02 \| good	53.635 \| good	10.144 \| good	0.509 \| good	8.51 \| good	0.376 \| good
2026-01-23T07:00:00.000Z	54 \| moderate	10.992 \| good	49.374 \| good	5.665 \| good	0.436 \| good	19.611 \| good	0.58 \| good
2026-01-23T08:00:00.000Z	56 \| moderate	11.797 \| good	52.847 \| good	6.474 \| good	0.472 \| good	15.955 \| good	0.486 \| good
2026-01-23T09:00:00.000Z	56 \| moderate	11.968 \| good	52.992 \| good	5.498 \| good	0.494 \| good	14.875 \| good	0.489 \| good
2026-01-23T10:00:00.000Z	54 \| moderate	11.389 \| good	49.777 \| good	5.406 \| good	0.573 \| good	12.819 \| good	0.498 \| good
2026-01-23T11:00:00.000Z	52 \| moderate	9.889 \| good	44.532 \| good	5.39 \| good	0.583 \| good	12.864 \| good	0.585 \| good
2026-01-23T12:00:00.000Z	52 \| moderate	9.803 \| good	43.358 \| good	5.364 \| good	0.361 \| good	12.769 \| good	0.583 \| good
2026-01-23T13:00:00.000Z	49 \| good	9.23 \| good	40.718 \| good	6.202 \| good	0.885 \| good	11.149 \| good	0.31 \| good
2026-01-23T14:00:00.000Z	44 \| good	8.154 \| good	35.392 \| good	7.132 \| good	0.865 \| good	11.496 \| good	0.302 \| good
2026-01-23T15:00:00.000Z	44 \| good	8.304 \| good	36.404 \| good	9.093 \| good	0.86 \| good	11.115 \| good	0.304 \| good
2026-01-23T16:00:00.000Z	38 \| good	7.31 \| good	32.428 \| good	13.916 \| good	0.691 \| good	9.238 \| good	0.303 \| good
2026-01-23T17:00:00.000Z	38 \| good	6.815 \| good	31.566 \| good	12.077 \| good	0.534 \| good	11.239 \| good	0.301 \| good
2026-01-23T18:00:00.000Z	44 \| good	8.444 \| good	37.08 \| good	12.233 \| good	0.554 \| good	10.544 \| good	0.296 \| good
2026-01-23T19:00:00.000Z	49 \| good	9.286 \| good	41.883 \| good	15.706 \| good	0.684 \| good	7.373 \| good	0.299 \| good
2026-01-23T20:00:00.000Z	58 \| moderate	12.906 \| fine	58.003 \| fine	16.777 \| good	0.938 \| good	8.502 \| good	0.299 \| good
2026-01-23T21:00:00.000Z	58 \| moderate	12.911 \| fine	58.615 \| fine	16.85 \| good	0.885 \| good	7.953 \| good	0.302 \| good
2026-01-23T22:00:00.000Z	56 \| moderate	11.64 \| good	51.32 \| good	17.804 \| good	0.757 \| good	7.441 \| good	0.302 \| good
2026-01-23T23:00:00.000Z	56 \| moderate	11.64 \| good	51.32 \| good	17.804 \| good	0.757 \| good	7.441 \| good	0.302 \| good
2026-01-24T00:00:00.000Z	88 \| moderate	28.88 \| fine	125.543 \| fine	23.865 \| good	2.975 \| good	11.224 \| good	0.235 \| good
2026-01-24T01:00:00.000Z	77 \| moderate	22.953 \| fine	100.624 \| fine	12.987 \| good	2.969 \| good	16.42 \| good	0.283 \| good
2026-01-24T02:00:00.000Z	75 \| moderate	22.409 \| fine	98.478 \| fine	12.959 \| good	2.963 \| good	21.616 \| good	0.331 \| good
2026-01-24T03:00:00.000Z	69 \| moderate	19.377 \| fine	85.7 \| fine	15.615 \| good	2.956 \| good	26.812 \| good	0.378 \| good
2026-01-24T04:00:00.000Z	71 \| moderate	19.544 \| fine	86.004 \| fine	14.58 \| good	3.132 \| good	27.226 \| good	0.403 \| good
2026-01-24T05:00:00.000Z	71 \| moderate	19.508 \| fine	86.254 \| fine	11.403 \| good	3.307 \| good	27.639 \| good	0.428 \| good
2026-01-24T06:00:00.000Z	71 \| moderate	19.891 \| fine	87.954 \| fine	10.127 \| good	3.483 \| good	28.052 \| good	0.453 \| good
2026-01-24T07:00:00.000Z	69 \| moderate	19.361 \| fine	84.959 \| fine	8.676 \| good	3.285 \| good	27.035 \| good	0.444 \| good
2026-01-24T08:00:00.000Z	67 \| moderate	18.298 \| fine	80.874 \| fine	9.138 \| good	3.087 \| good	26.019 \| good	0.435 \| good
2026-01-24T09:00:00.000Z	69 \| moderate	19.046 \| fine	83.717 \| fine	7.28 \| good	2.888 \| good	25.002 \| good	0.426 \| good
2026-01-24T10:00:00.000Z	66 \| moderate	17.333 \| fine	76.408 \| fine	8.358 \| good	2.68 \| good	23.763 \| good	0.412 \| good
2026-01-24T11:00:00.000Z	62 \| moderate	15.486 \| fine	69.092 \| fine	9.179 \| good	2.472 \| good	22.524 \| good	0.398 \| good
2026-01-24T12:00:00.000Z	62 \| moderate	14.628 \| fine	64.815 \| fine	6.945 \| good	2.264 \| good	21.284 \| good	0.384 \| good
2026-01-24T13:00:00.000Z	60 \| moderate	14.221 \| fine	63.561 \| fine	6.272 \| good	2.336 \| good	20.934 \| good	0.358 \| good
2026-01-24T14:00:00.000Z	52 \| moderate	9.623 \| good	42.311 \| good	7.569 \| good	2.408 \| good	20.584 \| good	0.333 \| good
2026-01-24T15:00:00.000Z	52 \| moderate	9.908 \| good	43.847 \| good	9.834 \| good	2.48 \| good	20.234 \| good	0.308 \| good
2026-01-24T16:00:00.000Z	49 \| good	9.178 \| good	40.45 \| good	14.65 \| good	2.141 \| good	17.265 \| good	0.279 \| good
2026-01-24T17:00:00.000Z	49 \| good	8.699 \| good	38.513 \| good	21 \| good	1.803 \| good	14.296 \| good	0.251 \| good
2026-01-24T18:00:00.000Z	44 \| good	8.145 \| good	35.881 \| good	24.795 \| good	1.464 \| good	11.327 \| good	0.223 \| good
2026-01-24T19:00:00.000Z	49 \| good	9.177 \| good	40.571 \| good	26.705 \| good	1.26 \| good	8.822 \| good	0.196 \| good
2026-01-24T20:00:00.000Z	33 \| good	6.036 \| good	26.099 \| good	31.25 \| good	1.055 \| good	6.318 \| good	0.17 \| good
2026-01-24T21:00:00.000Z	31 \| good	2.515 \| good	10.213 \| good	32.732 \| good	0.851 \| good	3.813 \| good	0.143 \| good
2026-01-24T22:00:00.000Z	31 \| good	1.1 \| good	4.798 \| good	33.349 \| good	0.844 \| good	4.195 \| good	0.143 \| good
2026-01-24T23:00:00.000Z	30 \| good	1.614 \| good	6.864 \| good	32.486 \| good	0.838 \| good	4.577 \| good	0.144 \| good
2026-01-25T00:00:00.000Z	30 \| good	2.112 \| good	8.758 \| good	31.565 \| good	0.831 \| good	4.959 \| good	0.144 \| good
2026-01-25T01:00:00.000Z	24 \| good	1.635 \| good	6.858 \| good	26.005 \| good	0.97 \| good	11.14 \| good	0.18 \| good
2026-01-25T02:00:00.000Z	19 \| good	2.606 \| good	10.5 \| good	20.605 \| good	1.109 \| good	17.321 \| good	0.216 \| good
2026-01-25T03:00:00.000Z	23 \| good	3.317 \| good	14.213 \| good	19.138 \| good	1.249 \| good	23.502 \| good	0.252 \| good
2026-01-25T04:00:00.000Z	27 \| good	4.586 \| good	19.69 \| good	16.683 \| good	1.318 \| good	24.098 \| good	0.259 \| good
2026-01-25T05:00:00.000Z	38 \| good	7.453 \| good	33.06 \| good	13.943 \| good	1.388 \| good	24.693 \| good	0.265 \| good
2026-01-25T06:00:00.000Z	38 \| good	6.828 \| good	30.055 \| good	12.402 \| good	1.458 \| good	25.288 \| good	0.272 \| good
2026-01-25T07:00:00.000Z	33 \| good	5.996 \| good	26.25 \| good	13.169 \| good	1.323 \| good	24.479 \| good	0.27 \| good
2026-01-25T08:00:00.000Z	38 \| good	6.811 \| good	30.059 \| good	14.466 \| good	1.189 \| good	23.67 \| good	0.268 \| good
2026-01-25T09:00:00.000Z	38 \| good	7.285 \| good	32.013 \| good	15.31 \| good	1.054 \| good	22.861 \| good	0.267 \| good
2026-01-25T10:00:00.000Z	38 \| good	6.906 \| good	30.732 \| good	15.637 \| good	0.973 \| good	21.715 \| good	0.257 \| good
2026-01-25T11:00:00.000Z	54 \| moderate	11.4 \| good	50.855 \| good	15.066 \| good	0.891 \| good	20.569 \| good	0.247 \| good
2026-01-25T12:00:00.000Z	52 \| moderate	10.072 \| good	44.779 \| good	13.979 \| good	0.809 \| good	19.423 \| good	0.237 \| good
2026-01-25T13:00:00.000Z	44 \| good	8.416 \| good	37.051 \| good	12.477 \| good	0.884 \| good	19.498 \| good	0.237 \| good
2026-01-25T14:00:00.000Z	22 \| good	4.344 \| good	18.662 \| good	11.958 \| good	0.959 \| good	19.573 \| good	0.236 \| good
2026-01-25T15:00:00.000Z	27 \| good	5.138 \| good	22.536 \| good	12.656 \| good	1.034 \| good	19.648 \| good	0.236 \| good
2026-01-25T16:00:00.000Z	33 \| good	5.611 \| good	24.212 \| good	13.421 \| good	1.135 \| good	18.077 \| good	0.246 \| good
2026-01-25T17:00:00.000Z	49 \| good	8.668 \| good	38.201 \| good	13.609 \| good	1.237 \| good	16.506 \| good	0.255 \| good
2026-01-25T18:00:00.000Z	49 \| good	8.71 \| good	38.175 \| good	16.646 \| good	1.338 \| good	14.935 \| good	0.265 \| good
2026-01-25T19:00:00.000Z	52 \| moderate	9.661 \| good	42.847 \| good	18.767 \| good	1.43 \| good	13.128 \| good	0.246 \| good
2026-01-25T20:00:00.000Z	44 \| good	8.459 \| good	37.449 \| good	19.035 \| good	1.521 \| good	11.32 \| good	0.227 \| good
2026-01-25T21:00:00.000Z	44 \| good	7.596 \| good	33.315 \| good	20.34 \| good	1.612 \| good	9.512 \| good	0.209 \| good
2026-01-25T22:00:00.000Z	38 \| good	7.13 \| good	31.357 \| good	22.811 \| good	1.641 \| good	10.935 \| good	0.214 \| good
2026-01-25T23:00:00.000Z	49 \| good	8.645 \| good	37.983 \| good	25.517 \| good	1.669 \| good	12.358 \| good	0.22 \| 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?

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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?