What is the sulfur dioxide (SO2) level in San Lorenzo, California at the moment?

Currently, San Lorenzo, California has a sulfur dioxide (SO2) concentration of 0.686 ppb.

What is the ozone (O3) level in San Lorenzo, California at the moment?

The current ozone (O3) level in San Lorenzo, California at the moment is 17.221 ppm.

What is the nitrogen dioxide (NO2) level in San Lorenzo, California at the moment?

Nitrogen dioxide (NO2) level in San Lorenzo, California at the moment is 8.093 ppb.

Live air quality index in San Lorenzo, California today

Q: What is the PM2.5 level in San Lorenzo, California at the moment?

PM2.5 levels in San Lorenzo, California are currently 12.289 μg/m3.

Q: What is the PM10 level in San Lorenzo, California at the moment?

The PM10 concentration in San Lorenzo, California is 51.136 μg/m3 at the moment.

Stay updated with real-time air quality in San Lorenzo, 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 Lorenzo, California

Last updated: ... (Local time)

Major air pollutants in San Lorenzo, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

12.29 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

51.14 μg/m³

155

255

425

605+

Ozone (O₃)

17.22 ppb

201

201+

Sulfur Dioxide (SO₂)

0.69 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

8.09 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.34 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

San Lorenzo, California

Get Live Pollen Counts

San Lorenzo, California

Scroll To Air Quality Map

Track live San Lorenzo, California air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-01-22T00:00:00.000Z	60 \| moderate	14.386 \| fine	56.481 \| fine	13.043 \| good	0.899 \| good	16.652 \| good	0.544 \| good
2026-01-22T01:00:00.000Z	54 \| moderate	11.317 \| good	51.514 \| good	11.36 \| good	0.859 \| good	16.739 \| good	0.498 \| good
2026-01-22T02:00:00.000Z	58 \| moderate	13.012 \| fine	59.052 \| fine	9.997 \| good	0.81 \| good	15.261 \| good	0.511 \| good
2026-01-22T03:00:00.000Z	62 \| moderate	14.514 \| fine	56.533 \| fine	7.945 \| good	0.825 \| good	20.808 \| good	0.585 \| good
2026-01-22T04:00:00.000Z	60 \| moderate	14.08 \| fine	62.782 \| fine	8.269 \| good	0.782 \| good	20.425 \| good	0.542 \| good
2026-01-22T05:00:00.000Z	60 \| moderate	13.646 \| fine	56.569 \| fine	10.214 \| good	0.795 \| good	20.108 \| good	0.512 \| good
2026-01-22T06:00:00.000Z	58 \| moderate	13.093 \| fine	46.869 \| good	8.927 \| good	0.853 \| good	20.288 \| good	0.588 \| good
2026-01-22T07:00:00.000Z	60 \| moderate	13.708 \| fine	57.935 \| fine	9.905 \| good	0.833 \| good	21.385 \| good	0.63 \| good
2026-01-22T08:00:00.000Z	64 \| moderate	15.692 \| fine	50.237 \| good	11.206 \| good	0.902 \| good	19.629 \| good	0.613 \| good
2026-01-22T09:00:00.000Z	58 \| moderate	12.543 \| fine	58.371 \| fine	10.611 \| good	0.822 \| good	19.351 \| good	0.601 \| good
2026-01-22T10:00:00.000Z	62 \| moderate	14.953 \| fine	47.316 \| good	9.175 \| good	0.828 \| good	19.052 \| good	0.54 \| good
2026-01-22T11:00:00.000Z	58 \| moderate	12.859 \| fine	55.427 \| fine	10.143 \| good	0.802 \| good	18.32 \| good	0.524 \| good
2026-01-22T12:00:00.000Z	58 \| moderate	13.224 \| fine	53.951 \| good	10.676 \| good	0.746 \| good	15.764 \| good	0.523 \| good
2026-01-22T13:00:00.000Z	56 \| moderate	11.76 \| good	56.783 \| fine	10.133 \| good	0.79 \| good	16.345 \| good	0.563 \| good
2026-01-22T14:00:00.000Z	62 \| moderate	14.665 \| fine	55.273 \| fine	11.602 \| good	0.736 \| good	15.706 \| good	0.586 \| good
2026-01-22T15:00:00.000Z	52 \| moderate	10.367 \| good	49.705 \| good	11.902 \| good	0.761 \| good	15.048 \| good	0.63 \| good
2026-01-22T16:00:00.000Z	54 \| moderate	11.129 \| good	51.228 \| good	12.63 \| good	0.761 \| good	17.398 \| good	0.707 \| good
2026-01-22T17:00:00.000Z	52 \| moderate	9.537 \| good	46.442 \| good	12.701 \| good	0.82 \| good	17.87 \| good	0.744 \| good
2026-01-22T18:00:00.000Z	58 \| moderate	12.958 \| fine	39.732 \| good	15.239 \| good	0.953 \| good	14.612 \| good	0.635 \| good
2026-01-22T19:00:00.000Z	64 \| moderate	15.961 \| fine	67.551 \| fine	16.733 \| good	0.923 \| good	15.366 \| good	0.578 \| good
2026-01-22T20:00:00.000Z	69 \| moderate	18.543 \| fine	65.471 \| fine	12.456 \| good	1.067 \| good	13.589 \| good	0.523 \| good
2026-01-22T21:00:00.000Z	64 \| moderate	16.478 \| fine	54.297 \| good	13.764 \| good	0.976 \| good	15.122 \| good	0.487 \| good
2026-01-22T22:00:00.000Z	66 \| moderate	16.672 \| fine	43.224 \| good	14.07 \| good	0.796 \| good	12.731 \| good	0.377 \| good
2026-01-22T23:00:00.000Z	56 \| moderate	12.197 \| fine	53.526 \| good	19.21 \| good	0.981 \| good	17.873 \| good	0.425 \| good
2026-01-23T00:00:00.000Z	67 \| moderate	17.955 \| fine	62.471 \| fine	19.607 \| good	0.916 \| good	12.924 \| good	0.408 \| good
2026-01-23T01:00:00.000Z	56 \| moderate	11.8 \| good	45.151 \| good	22.138 \| good	0.824 \| good	12.069 \| good	0.349 \| good
2026-01-23T02:00:00.000Z	58 \| moderate	13.04 \| fine	54.347 \| good	23.535 \| good	1.505 \| good	12.164 \| good	0.394 \| good
2026-01-23T03:00:00.000Z	54 \| moderate	11.233 \| good	44.972 \| good	21.457 \| good	0.887 \| good	17.473 \| good	0.485 \| good
2026-01-23T04:00:00.000Z	58 \| moderate	12.912 \| fine	50.172 \| good	20.869 \| good	0.7 \| good	19.35 \| good	0.408 \| good
2026-01-23T05:00:00.000Z	56 \| moderate	11.957 \| good	40.681 \| good	18.095 \| good	0.597 \| good	22.791 \| good	0.542 \| good
2026-01-23T06:00:00.000Z	60 \| moderate	14.369 \| fine	53.381 \| good	16.6 \| good	0.486 \| good	16.557 \| good	0.478 \| good
2026-01-23T07:00:00.000Z	54 \| moderate	11.315 \| good	60.172 \| fine	11.705 \| good	0.432 \| good	19.375 \| good	0.533 \| good
2026-01-23T08:00:00.000Z	60 \| moderate	14.256 \| fine	48.357 \| good	11.763 \| good	0.456 \| good	19.819 \| good	0.478 \| good
2026-01-23T09:00:00.000Z	67 \| moderate	18.19 \| fine	49.496 \| good	10.866 \| good	0.492 \| good	18.192 \| good	0.432 \| good
2026-01-23T10:00:00.000Z	64 \| moderate	15.744 \| fine	55.283 \| fine	12.041 \| good	0.551 \| good	16.352 \| good	0.457 \| good
2026-01-23T11:00:00.000Z	63 \| moderate	15.419 \| fine	78.502 \| fine	10.016 \| good	0.524 \| good	16.02 \| good	0.459 \| good
2026-01-23T12:00:00.000Z	58 \| moderate	12.725 \| fine	50.487 \| good	10.512 \| good	0.381 \| good	13.519 \| good	0.448 \| good
2026-01-23T13:00:00.000Z	56 \| moderate	11.743 \| good	51.259 \| good	11.042 \| good	0.904 \| good	12.649 \| good	0.316 \| good
2026-01-23T14:00:00.000Z	52 \| moderate	10.457 \| good	40.331 \| good	11.614 \| good	0.849 \| good	12.925 \| good	0.316 \| good
2026-01-23T15:00:00.000Z	56 \| moderate	11.95 \| good	42.01 \| good	13.474 \| good	0.847 \| good	12.313 \| good	0.374 \| good
2026-01-23T16:00:00.000Z	56 \| moderate	12.087 \| good	44.702 \| good	15.646 \| good	0.669 \| good	11.733 \| good	0.374 \| good
2026-01-23T17:00:00.000Z	58 \| moderate	11.014 \| good	69.114 \| fine	16.64 \| good	0.604 \| good	10.876 \| good	0.376 \| good
2026-01-23T18:00:00.000Z	54 \| moderate	11.069 \| good	47.96 \| good	16.815 \| good	0.648 \| good	9.517 \| good	0.314 \| good
2026-01-23T19:00:00.000Z	54 \| moderate	10.875 \| good	50.456 \| good	15.969 \| good	0.774 \| good	8.273 \| good	0.358 \| good
2026-01-23T20:00:00.000Z	54 \| moderate	10.548 \| good	35.176 \| good	15.518 \| good	0.884 \| good	8.004 \| good	0.317 \| good
2026-01-23T21:00:00.000Z	54 \| moderate	10.801 \| good	51.039 \| good	15.996 \| good	0.741 \| good	9.461 \| good	0.389 \| good
2026-01-23T22:00:00.000Z	56 \| moderate	12.389 \| fine	45.795 \| good	16.759 \| good	0.653 \| good	8.676 \| good	0.389 \| good
2026-01-23T23:00:00.000Z	56 \| moderate	12.289 \| fine	51.136 \| good	17.221 \| good	0.686 \| good	8.093 \| good	0.339 \| good
2026-01-24T00:00:00.000Z	88 \| moderate	29.224 \| fine	126.462 \| fine	23.44 \| good	3.409 \| good	13.419 \| good	0.244 \| good
2026-01-24T01:00:00.000Z	82 \| moderate	26.255 \| fine	114.485 \| fine	10.815 \| good	3.432 \| good	19.435 \| good	0.302 \| good
2026-01-24T02:00:00.000Z	86 \| moderate	28.266 \| fine	122.396 \| fine	10.129 \| good	3.454 \| good	25.451 \| good	0.361 \| good
2026-01-24T03:00:00.000Z	82 \| moderate	26.149 \| fine	114.237 \| fine	10.939 \| good	3.476 \| good	31.468 \| good	0.419 \| good
2026-01-24T04:00:00.000Z	81 \| moderate	25.22 \| fine	109.604 \| fine	11.822 \| good	3.769 \| good	31.634 \| good	0.45 \| good
2026-01-24T05:00:00.000Z	79 \| moderate	24.021 \| fine	104.786 \| fine	11.187 \| good	4.062 \| good	31.799 \| good	0.482 \| good
2026-01-24T06:00:00.000Z	79 \| moderate	24.281 \| fine	106.345 \| fine	11.237 \| good	4.355 \| good	31.965 \| good	0.513 \| good
2026-01-24T07:00:00.000Z	79 \| moderate	24.05 \| fine	105.013 \| fine	9.703 \| good	4.134 \| good	30.829 \| good	0.503 \| good
2026-01-24T08:00:00.000Z	77 \| moderate	22.51 \| fine	98.689 \| fine	11.514 \| good	3.913 \| good	29.693 \| good	0.493 \| good
2026-01-24T09:00:00.000Z	75 \| moderate	22.478 \| fine	98.441 \| fine	11.146 \| good	3.692 \| good	28.556 \| good	0.483 \| good
2026-01-24T10:00:00.000Z	71 \| moderate	20.039 \| fine	88.293 \| fine	13.304 \| good	3.394 \| good	26.745 \| good	0.465 \| good
2026-01-24T11:00:00.000Z	66 \| moderate	17.358 \| fine	76.99 \| fine	15.67 \| good	3.097 \| good	24.934 \| good	0.448 \| good
2026-01-24T12:00:00.000Z	62 \| moderate	14.949 \| fine	66.927 \| fine	13.426 \| good	2.8 \| good	23.123 \| good	0.43 \| good
2026-01-24T13:00:00.000Z	56 \| moderate	11.637 \| good	51.884 \| good	12.763 \| good	2.858 \| good	22.955 \| good	0.4 \| good
2026-01-24T14:00:00.000Z	27 \| good	5.007 \| good	21.857 \| good	14.997 \| good	2.916 \| good	22.787 \| good	0.37 \| good
2026-01-24T15:00:00.000Z	33 \| good	5.969 \| good	26.148 \| good	17.04 \| good	2.975 \| good	22.618 \| good	0.34 \| good
2026-01-24T16:00:00.000Z	27 \| good	5.256 \| good	23.249 \| good	21.102 \| good	2.484 \| good	19.005 \| good	0.302 \| good
2026-01-24T17:00:00.000Z	33 \| good	5.902 \| good	25.824 \| good	26.84 \| good	1.994 \| good	15.391 \| good	0.264 \| good
2026-01-24T18:00:00.000Z	33 \| good	5.795 \| good	25.466 \| good	27.836 \| good	1.504 \| good	11.778 \| good	0.226 \| good
2026-01-24T19:00:00.000Z	33 \| good	6.473 \| good	28.725 \| good	28.813 \| good	1.287 \| good	9.117 \| good	0.198 \| good
2026-01-24T20:00:00.000Z	30 \| good	4.557 \| good	19.906 \| good	31.534 \| good	1.07 \| good	6.456 \| good	0.171 \| good
2026-01-24T21:00:00.000Z	30 \| good	2.382 \| good	9.668 \| good	32.29 \| good	0.854 \| good	3.795 \| good	0.143 \| good
2026-01-24T22:00:00.000Z	30 \| good	1.319 \| good	5.339 \| good	32.371 \| good	0.84 \| good	4.087 \| good	0.143 \| good
2026-01-24T23:00:00.000Z	30 \| good	1.62 \| good	6.706 \| good	32.178 \| good	0.827 \| good	4.378 \| good	0.142 \| good
2026-01-25T00:00:00.000Z	30 \| good	2.252 \| good	9.122 \| good	31.528 \| good	0.814 \| good	4.67 \| good	0.142 \| good
2026-01-25T01:00:00.000Z	25 \| good	1.909 \| good	8.075 \| good	26.648 \| good	0.98 \| good	12.034 \| good	0.186 \| good
2026-01-25T02:00:00.000Z	21 \| good	2.973 \| good	12.488 \| good	22.706 \| good	1.146 \| good	19.398 \| good	0.23 \| good
2026-01-25T03:00:00.000Z	25 \| good	3.43 \| good	14.386 \| good	22.954 \| good	1.311 \| good	26.762 \| good	0.274 \| good
2026-01-25T04:00:00.000Z	25 \| good	4.051 \| good	17.533 \| good	22.087 \| good	1.387 \| good	27.167 \| good	0.281 \| good
2026-01-25T05:00:00.000Z	33 \| good	5.637 \| good	24.542 \| good	21.045 \| good	1.463 \| good	27.573 \| good	0.288 \| good
2026-01-25T06:00:00.000Z	27 \| good	5.105 \| good	22.367 \| good	20.703 \| good	1.539 \| good	27.978 \| good	0.295 \| good
2026-01-25T07:00:00.000Z	25 \| good	4.242 \| good	18.555 \| good	21.148 \| good	1.388 \| good	26.886 \| good	0.292 \| good
2026-01-25T08:00:00.000Z	27 \| good	5.058 \| good	22.141 \| good	21.652 \| good	1.237 \| good	25.795 \| good	0.29 \| good
2026-01-25T09:00:00.000Z	33 \| good	5.636 \| good	24.349 \| good	21.572 \| good	1.086 \| good	24.703 \| good	0.287 \| good
2026-01-25T10:00:00.000Z	27 \| good	5.236 \| good	22.795 \| good	21.288 \| good	0.998 \| good	23.408 \| good	0.275 \| good
2026-01-25T11:00:00.000Z	44 \| good	8.124 \| good	35.819 \| good	20.44 \| good	0.91 \| good	22.113 \| good	0.262 \| good
2026-01-25T12:00:00.000Z	38 \| good	7.316 \| good	32.047 \| good	19.578 \| good	0.822 \| good	20.817 \| good	0.25 \| good
2026-01-25T13:00:00.000Z	33 \| good	6.1 \| good	26.735 \| good	19.085 \| good	0.906 \| good	20.894 \| good	0.25 \| good
2026-01-25T14:00:00.000Z	20 \| good	2.937 \| good	12.357 \| good	19.131 \| good	0.991 \| good	20.97 \| good	0.249 \| good
2026-01-25T15:00:00.000Z	22 \| good	3.902 \| good	17.053 \| good	19.003 \| good	1.075 \| good	21.047 \| good	0.249 \| good
2026-01-25T16:00:00.000Z	22 \| good	4.312 \| good	19.047 \| good	19.3 \| good	1.185 \| good	19.276 \| good	0.256 \| good
2026-01-25T17:00:00.000Z	38 \| good	7.302 \| good	32.266 \| good	18.848 \| good	1.294 \| good	17.505 \| good	0.264 \| good
2026-01-25T18:00:00.000Z	38 \| good	7.393 \| good	32.73 \| good	21.128 \| good	1.403 \| good	15.734 \| good	0.272 \| good
2026-01-25T19:00:00.000Z	44 \| good	8 \| good	35.104 \| good	23.081 \| good	1.476 \| good	13.396 \| good	0.25 \| good
2026-01-25T20:00:00.000Z	44 \| good	7.604 \| good	33.4 \| good	22.268 \| good	1.549 \| good	11.057 \| good	0.228 \| good
2026-01-25T21:00:00.000Z	38 \| good	7.433 \| good	32.919 \| good	23.221 \| good	1.621 \| good	8.719 \| good	0.206 \| good
2026-01-25T22:00:00.000Z	38 \| good	7.164 \| good	31.727 \| good	25.029 \| good	1.646 \| good	10.419 \| good	0.213 \| good
2026-01-25T23:00:00.000Z	44 \| good	8.366 \| good	36.523 \| good	26.834 \| good	1.672 \| good	12.119 \| good	0.219 \| good

San Lorenzo

Get reliable air quality data to drive your business

San Lorenzo, California air quality map: Stay updated on AQI near you

0.39ppm

How accurate is California, USA air quality data?

Air quality and pollutant data for California, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.

Source: Ambee Data Sources

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Frequently asked questions

How often is air quality information updated for San Lorenzo, California?

The air quality information for San Lorenzo, California is updated every hour for accuracy.

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

In the past 24 hours, the air quality in San Lorenzo, California was at its worst at 09:00:00 on 2026-01-23.

When did San Lorenzo, California experience the best air quality in the last 24 hours?

In the last 24 hours, the best air quality in San Lorenzo, California was observed at 02:00:00 on 2026-01-23.

What is the AQI in San Lorenzo, California right now?

As of now, the AQI in San Lorenzo, California is 56, indicating Moderate conditions.

What is the most common type of pollution in San Lorenzo, California?

San Lorenzo, California air has the highest levels of PM2.5.

What should I do in case of poor air quality in San Lorenzo, California?

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

What is the PM_2.5 level in San Lorenzo, California at the moment?

PM_2.5 levels in San Lorenzo, California are currently 12.289 μg/m³.

What is the PM₁₀ level in San Lorenzo, California at the moment?

The PM₁₀ concentration in San Lorenzo, California is 51.136 μg/m³ at the moment.

What is the carbon monoxide (CO) level in San Lorenzo, California at the moment?

The current carbon monoxide (CO) concentration in San Lorenzo, California is 0.339 ppm.

What is the sulfur dioxide (SO₂) level in San Lorenzo, California at the moment?

Currently, San Lorenzo, California has a sulfur dioxide (SO₂) concentration of 0.686 ppb.

What is the ozone (O₃) level in San Lorenzo, California at the moment?

The current ozone (O₃) level in San Lorenzo, California at the moment is 17.221 ppm.

What is the nitrogen dioxide (NO₂) level in San Lorenzo, California at the moment?

Nitrogen dioxide (NO₂) level in San Lorenzo, California at the moment is 8.093 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-01-22T00:00:00.000Z	60 \| moderate	14.386 \| fine	56.481 \| fine	13.043 \| good	0.899 \| good	16.652 \| good	0.544 \| good
2026-01-22T01:00:00.000Z	54 \| moderate	11.317 \| good	51.514 \| good	11.36 \| good	0.859 \| good	16.739 \| good	0.498 \| good
2026-01-22T02:00:00.000Z	58 \| moderate	13.012 \| fine	59.052 \| fine	9.997 \| good	0.81 \| good	15.261 \| good	0.511 \| good
2026-01-22T03:00:00.000Z	62 \| moderate	14.514 \| fine	56.533 \| fine	7.945 \| good	0.825 \| good	20.808 \| good	0.585 \| good
2026-01-22T04:00:00.000Z	60 \| moderate	14.08 \| fine	62.782 \| fine	8.269 \| good	0.782 \| good	20.425 \| good	0.542 \| good
2026-01-22T05:00:00.000Z	60 \| moderate	13.646 \| fine	56.569 \| fine	10.214 \| good	0.795 \| good	20.108 \| good	0.512 \| good
2026-01-22T06:00:00.000Z	58 \| moderate	13.093 \| fine	46.869 \| good	8.927 \| good	0.853 \| good	20.288 \| good	0.588 \| good
2026-01-22T07:00:00.000Z	60 \| moderate	13.708 \| fine	57.935 \| fine	9.905 \| good	0.833 \| good	21.385 \| good	0.63 \| good
2026-01-22T08:00:00.000Z	64 \| moderate	15.692 \| fine	50.237 \| good	11.206 \| good	0.902 \| good	19.629 \| good	0.613 \| good
2026-01-22T09:00:00.000Z	58 \| moderate	12.543 \| fine	58.371 \| fine	10.611 \| good	0.822 \| good	19.351 \| good	0.601 \| good
2026-01-22T10:00:00.000Z	62 \| moderate	14.953 \| fine	47.316 \| good	9.175 \| good	0.828 \| good	19.052 \| good	0.54 \| good
2026-01-22T11:00:00.000Z	58 \| moderate	12.859 \| fine	55.427 \| fine	10.143 \| good	0.802 \| good	18.32 \| good	0.524 \| good
2026-01-22T12:00:00.000Z	58 \| moderate	13.224 \| fine	53.951 \| good	10.676 \| good	0.746 \| good	15.764 \| good	0.523 \| good
2026-01-22T13:00:00.000Z	56 \| moderate	11.76 \| good	56.783 \| fine	10.133 \| good	0.79 \| good	16.345 \| good	0.563 \| good
2026-01-22T14:00:00.000Z	62 \| moderate	14.665 \| fine	55.273 \| fine	11.602 \| good	0.736 \| good	15.706 \| good	0.586 \| good
2026-01-22T15:00:00.000Z	52 \| moderate	10.367 \| good	49.705 \| good	11.902 \| good	0.761 \| good	15.048 \| good	0.63 \| good
2026-01-22T16:00:00.000Z	54 \| moderate	11.129 \| good	51.228 \| good	12.63 \| good	0.761 \| good	17.398 \| good	0.707 \| good
2026-01-22T17:00:00.000Z	52 \| moderate	9.537 \| good	46.442 \| good	12.701 \| good	0.82 \| good	17.87 \| good	0.744 \| good
2026-01-22T18:00:00.000Z	58 \| moderate	12.958 \| fine	39.732 \| good	15.239 \| good	0.953 \| good	14.612 \| good	0.635 \| good
2026-01-22T19:00:00.000Z	64 \| moderate	15.961 \| fine	67.551 \| fine	16.733 \| good	0.923 \| good	15.366 \| good	0.578 \| good
2026-01-22T20:00:00.000Z	69 \| moderate	18.543 \| fine	65.471 \| fine	12.456 \| good	1.067 \| good	13.589 \| good	0.523 \| good
2026-01-22T21:00:00.000Z	64 \| moderate	16.478 \| fine	54.297 \| good	13.764 \| good	0.976 \| good	15.122 \| good	0.487 \| good
2026-01-22T22:00:00.000Z	66 \| moderate	16.672 \| fine	43.224 \| good	14.07 \| good	0.796 \| good	12.731 \| good	0.377 \| good
2026-01-22T23:00:00.000Z	56 \| moderate	12.197 \| fine	53.526 \| good	19.21 \| good	0.981 \| good	17.873 \| good	0.425 \| good
2026-01-23T00:00:00.000Z	67 \| moderate	17.955 \| fine	62.471 \| fine	19.607 \| good	0.916 \| good	12.924 \| good	0.408 \| good
2026-01-23T01:00:00.000Z	56 \| moderate	11.8 \| good	45.151 \| good	22.138 \| good	0.824 \| good	12.069 \| good	0.349 \| good
2026-01-23T02:00:00.000Z	58 \| moderate	13.04 \| fine	54.347 \| good	23.535 \| good	1.505 \| good	12.164 \| good	0.394 \| good
2026-01-23T03:00:00.000Z	54 \| moderate	11.233 \| good	44.972 \| good	21.457 \| good	0.887 \| good	17.473 \| good	0.485 \| good
2026-01-23T04:00:00.000Z	58 \| moderate	12.912 \| fine	50.172 \| good	20.869 \| good	0.7 \| good	19.35 \| good	0.408 \| good
2026-01-23T05:00:00.000Z	56 \| moderate	11.957 \| good	40.681 \| good	18.095 \| good	0.597 \| good	22.791 \| good	0.542 \| good
2026-01-23T06:00:00.000Z	60 \| moderate	14.369 \| fine	53.381 \| good	16.6 \| good	0.486 \| good	16.557 \| good	0.478 \| good
2026-01-23T07:00:00.000Z	54 \| moderate	11.315 \| good	60.172 \| fine	11.705 \| good	0.432 \| good	19.375 \| good	0.533 \| good
2026-01-23T08:00:00.000Z	60 \| moderate	14.256 \| fine	48.357 \| good	11.763 \| good	0.456 \| good	19.819 \| good	0.478 \| good
2026-01-23T09:00:00.000Z	67 \| moderate	18.19 \| fine	49.496 \| good	10.866 \| good	0.492 \| good	18.192 \| good	0.432 \| good
2026-01-23T10:00:00.000Z	64 \| moderate	15.744 \| fine	55.283 \| fine	12.041 \| good	0.551 \| good	16.352 \| good	0.457 \| good
2026-01-23T11:00:00.000Z	63 \| moderate	15.419 \| fine	78.502 \| fine	10.016 \| good	0.524 \| good	16.02 \| good	0.459 \| good
2026-01-23T12:00:00.000Z	58 \| moderate	12.725 \| fine	50.487 \| good	10.512 \| good	0.381 \| good	13.519 \| good	0.448 \| good
2026-01-23T13:00:00.000Z	56 \| moderate	11.743 \| good	51.259 \| good	11.042 \| good	0.904 \| good	12.649 \| good	0.316 \| good
2026-01-23T14:00:00.000Z	52 \| moderate	10.457 \| good	40.331 \| good	11.614 \| good	0.849 \| good	12.925 \| good	0.316 \| good
2026-01-23T15:00:00.000Z	56 \| moderate	11.95 \| good	42.01 \| good	13.474 \| good	0.847 \| good	12.313 \| good	0.374 \| good
2026-01-23T16:00:00.000Z	56 \| moderate	12.087 \| good	44.702 \| good	15.646 \| good	0.669 \| good	11.733 \| good	0.374 \| good
2026-01-23T17:00:00.000Z	58 \| moderate	11.014 \| good	69.114 \| fine	16.64 \| good	0.604 \| good	10.876 \| good	0.376 \| good
2026-01-23T18:00:00.000Z	54 \| moderate	11.069 \| good	47.96 \| good	16.815 \| good	0.648 \| good	9.517 \| good	0.314 \| good
2026-01-23T19:00:00.000Z	54 \| moderate	10.875 \| good	50.456 \| good	15.969 \| good	0.774 \| good	8.273 \| good	0.358 \| good
2026-01-23T20:00:00.000Z	54 \| moderate	10.548 \| good	35.176 \| good	15.518 \| good	0.884 \| good	8.004 \| good	0.317 \| good
2026-01-23T21:00:00.000Z	54 \| moderate	10.801 \| good	51.039 \| good	15.996 \| good	0.741 \| good	9.461 \| good	0.389 \| good
2026-01-23T22:00:00.000Z	56 \| moderate	12.389 \| fine	45.795 \| good	16.759 \| good	0.653 \| good	8.676 \| good	0.389 \| good
2026-01-23T23:00:00.000Z	56 \| moderate	12.289 \| fine	51.136 \| good	17.221 \| good	0.686 \| good	8.093 \| good	0.339 \| good
2026-01-24T00:00:00.000Z	88 \| moderate	29.224 \| fine	126.462 \| fine	23.44 \| good	3.409 \| good	13.419 \| good	0.244 \| good
2026-01-24T01:00:00.000Z	82 \| moderate	26.255 \| fine	114.485 \| fine	10.815 \| good	3.432 \| good	19.435 \| good	0.302 \| good
2026-01-24T02:00:00.000Z	86 \| moderate	28.266 \| fine	122.396 \| fine	10.129 \| good	3.454 \| good	25.451 \| good	0.361 \| good
2026-01-24T03:00:00.000Z	82 \| moderate	26.149 \| fine	114.237 \| fine	10.939 \| good	3.476 \| good	31.468 \| good	0.419 \| good
2026-01-24T04:00:00.000Z	81 \| moderate	25.22 \| fine	109.604 \| fine	11.822 \| good	3.769 \| good	31.634 \| good	0.45 \| good
2026-01-24T05:00:00.000Z	79 \| moderate	24.021 \| fine	104.786 \| fine	11.187 \| good	4.062 \| good	31.799 \| good	0.482 \| good
2026-01-24T06:00:00.000Z	79 \| moderate	24.281 \| fine	106.345 \| fine	11.237 \| good	4.355 \| good	31.965 \| good	0.513 \| good
2026-01-24T07:00:00.000Z	79 \| moderate	24.05 \| fine	105.013 \| fine	9.703 \| good	4.134 \| good	30.829 \| good	0.503 \| good
2026-01-24T08:00:00.000Z	77 \| moderate	22.51 \| fine	98.689 \| fine	11.514 \| good	3.913 \| good	29.693 \| good	0.493 \| good
2026-01-24T09:00:00.000Z	75 \| moderate	22.478 \| fine	98.441 \| fine	11.146 \| good	3.692 \| good	28.556 \| good	0.483 \| good
2026-01-24T10:00:00.000Z	71 \| moderate	20.039 \| fine	88.293 \| fine	13.304 \| good	3.394 \| good	26.745 \| good	0.465 \| good
2026-01-24T11:00:00.000Z	66 \| moderate	17.358 \| fine	76.99 \| fine	15.67 \| good	3.097 \| good	24.934 \| good	0.448 \| good
2026-01-24T12:00:00.000Z	62 \| moderate	14.949 \| fine	66.927 \| fine	13.426 \| good	2.8 \| good	23.123 \| good	0.43 \| good
2026-01-24T13:00:00.000Z	56 \| moderate	11.637 \| good	51.884 \| good	12.763 \| good	2.858 \| good	22.955 \| good	0.4 \| good
2026-01-24T14:00:00.000Z	27 \| good	5.007 \| good	21.857 \| good	14.997 \| good	2.916 \| good	22.787 \| good	0.37 \| good
2026-01-24T15:00:00.000Z	33 \| good	5.969 \| good	26.148 \| good	17.04 \| good	2.975 \| good	22.618 \| good	0.34 \| good
2026-01-24T16:00:00.000Z	27 \| good	5.256 \| good	23.249 \| good	21.102 \| good	2.484 \| good	19.005 \| good	0.302 \| good
2026-01-24T17:00:00.000Z	33 \| good	5.902 \| good	25.824 \| good	26.84 \| good	1.994 \| good	15.391 \| good	0.264 \| good
2026-01-24T18:00:00.000Z	33 \| good	5.795 \| good	25.466 \| good	27.836 \| good	1.504 \| good	11.778 \| good	0.226 \| good
2026-01-24T19:00:00.000Z	33 \| good	6.473 \| good	28.725 \| good	28.813 \| good	1.287 \| good	9.117 \| good	0.198 \| good
2026-01-24T20:00:00.000Z	30 \| good	4.557 \| good	19.906 \| good	31.534 \| good	1.07 \| good	6.456 \| good	0.171 \| good
2026-01-24T21:00:00.000Z	30 \| good	2.382 \| good	9.668 \| good	32.29 \| good	0.854 \| good	3.795 \| good	0.143 \| good
2026-01-24T22:00:00.000Z	30 \| good	1.319 \| good	5.339 \| good	32.371 \| good	0.84 \| good	4.087 \| good	0.143 \| good
2026-01-24T23:00:00.000Z	30 \| good	1.62 \| good	6.706 \| good	32.178 \| good	0.827 \| good	4.378 \| good	0.142 \| good
2026-01-25T00:00:00.000Z	30 \| good	2.252 \| good	9.122 \| good	31.528 \| good	0.814 \| good	4.67 \| good	0.142 \| good
2026-01-25T01:00:00.000Z	25 \| good	1.909 \| good	8.075 \| good	26.648 \| good	0.98 \| good	12.034 \| good	0.186 \| good
2026-01-25T02:00:00.000Z	21 \| good	2.973 \| good	12.488 \| good	22.706 \| good	1.146 \| good	19.398 \| good	0.23 \| good
2026-01-25T03:00:00.000Z	25 \| good	3.43 \| good	14.386 \| good	22.954 \| good	1.311 \| good	26.762 \| good	0.274 \| good
2026-01-25T04:00:00.000Z	25 \| good	4.051 \| good	17.533 \| good	22.087 \| good	1.387 \| good	27.167 \| good	0.281 \| good
2026-01-25T05:00:00.000Z	33 \| good	5.637 \| good	24.542 \| good	21.045 \| good	1.463 \| good	27.573 \| good	0.288 \| good
2026-01-25T06:00:00.000Z	27 \| good	5.105 \| good	22.367 \| good	20.703 \| good	1.539 \| good	27.978 \| good	0.295 \| good
2026-01-25T07:00:00.000Z	25 \| good	4.242 \| good	18.555 \| good	21.148 \| good	1.388 \| good	26.886 \| good	0.292 \| good
2026-01-25T08:00:00.000Z	27 \| good	5.058 \| good	22.141 \| good	21.652 \| good	1.237 \| good	25.795 \| good	0.29 \| good
2026-01-25T09:00:00.000Z	33 \| good	5.636 \| good	24.349 \| good	21.572 \| good	1.086 \| good	24.703 \| good	0.287 \| good
2026-01-25T10:00:00.000Z	27 \| good	5.236 \| good	22.795 \| good	21.288 \| good	0.998 \| good	23.408 \| good	0.275 \| good
2026-01-25T11:00:00.000Z	44 \| good	8.124 \| good	35.819 \| good	20.44 \| good	0.91 \| good	22.113 \| good	0.262 \| good
2026-01-25T12:00:00.000Z	38 \| good	7.316 \| good	32.047 \| good	19.578 \| good	0.822 \| good	20.817 \| good	0.25 \| good
2026-01-25T13:00:00.000Z	33 \| good	6.1 \| good	26.735 \| good	19.085 \| good	0.906 \| good	20.894 \| good	0.25 \| good
2026-01-25T14:00:00.000Z	20 \| good	2.937 \| good	12.357 \| good	19.131 \| good	0.991 \| good	20.97 \| good	0.249 \| good
2026-01-25T15:00:00.000Z	22 \| good	3.902 \| good	17.053 \| good	19.003 \| good	1.075 \| good	21.047 \| good	0.249 \| good
2026-01-25T16:00:00.000Z	22 \| good	4.312 \| good	19.047 \| good	19.3 \| good	1.185 \| good	19.276 \| good	0.256 \| good
2026-01-25T17:00:00.000Z	38 \| good	7.302 \| good	32.266 \| good	18.848 \| good	1.294 \| good	17.505 \| good	0.264 \| good
2026-01-25T18:00:00.000Z	38 \| good	7.393 \| good	32.73 \| good	21.128 \| good	1.403 \| good	15.734 \| good	0.272 \| good
2026-01-25T19:00:00.000Z	44 \| good	8 \| good	35.104 \| good	23.081 \| good	1.476 \| good	13.396 \| good	0.25 \| good
2026-01-25T20:00:00.000Z	44 \| good	7.604 \| good	33.4 \| good	22.268 \| good	1.549 \| good	11.057 \| good	0.228 \| good
2026-01-25T21:00:00.000Z	38 \| good	7.433 \| good	32.919 \| good	23.221 \| good	1.621 \| good	8.719 \| good	0.206 \| good
2026-01-25T22:00:00.000Z	38 \| good	7.164 \| good	31.727 \| good	25.029 \| good	1.646 \| good	10.419 \| good	0.213 \| good
2026-01-25T23:00:00.000Z	44 \| good	8.366 \| good	36.523 \| good	26.834 \| good	1.672 \| good	12.119 \| good	0.219 \| good

Live air quality index in San Lorenzo, California today

Major air pollutants in San Lorenzo, California

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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San Lorenzo, California air quality map: Stay updated on AQI near you

Air quality in nearby cities

Cherryland, California

Ashland, California

Hayward, California

Castro Valley, California

San Leandro, California

Fairview, California

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Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

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What is the nitrogen dioxide (NO₂) level in San Lorenzo, California at the moment?