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 0.594 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 26.579 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 3.905 ppb.

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

Name: Live air pollution levels in San Lorenzo, California today
Creator: Ambee

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)

Good

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)

4.57 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

19.77 μg/m³

155

255

425

605+

Ozone (O₃)

26.58 ppb

201

201+

Sulfur Dioxide (SO₂)

0.59 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

3.90 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.26 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
2025-06-04T08:00:00.000Z	58 \| moderate	12.953 \| fine	58.859 \| fine	28.332 \| good	0.757 \| good	4.461 \| good	0.218 \| good
2025-06-04T09:00:00.000Z	62 \| moderate	15.295 \| fine	68.391 \| fine	29.119 \| good	0.766 \| good	3.586 \| good	0.211 \| good
2025-06-04T10:00:00.000Z	60 \| moderate	13.8 \| fine	61.467 \| fine	28.145 \| good	0.726 \| good	3.755 \| good	0.211 \| good
2025-06-04T11:00:00.000Z	58 \| moderate	13.134 \| fine	59.082 \| fine	29.947 \| good	0.721 \| good	2.399 \| good	0.21 \| good
2025-06-04T12:00:00.000Z	56 \| moderate	12.321 \| fine	55.04 \| fine	29.933 \| good	0.718 \| good	2.438 \| good	0.21 \| good
2025-06-04T13:00:00.000Z	52 \| moderate	10.416 \| good	46.027 \| good	22.8 \| good	1.021 \| good	3.936 \| good	0.12 \| good
2025-06-04T14:00:00.000Z	60 \| moderate	13.951 \| fine	63.48 \| fine	27.993 \| good	0.783 \| good	3.726 \| good	0.218 \| good
2025-06-04T15:00:00.000Z	62 \| moderate	14.795 \| fine	65.652 \| fine	26.966 \| good	0.809 \| good	4.732 \| good	0.223 \| good
2025-06-04T16:00:00.000Z	64 \| moderate	15.935 \| fine	71.115 \| fine	26.071 \| good	0.9 \| good	5.435 \| good	0.311 \| good
2025-06-04T17:00:00.000Z	67 \| moderate	18.13 \| fine	79.575 \| fine	25.122 \| good	0.823 \| good	7.05 \| good	0.401 \| good
2025-06-04T18:00:00.000Z	66 \| moderate	17.401 \| fine	77.155 \| fine	23.459 \| good	1.11 \| good	8.404 \| good	0.311 \| good
2025-06-04T19:00:00.000Z	64 \| moderate	16.203 \| fine	71.978 \| fine	27.12 \| good	1.689 \| good	5.095 \| good	0.308 \| good
2025-06-04T20:00:00.000Z	64 \| moderate	15.665 \| fine	70.719 \| fine	30.911 \| good	1.137 \| good	3.878 \| good	0.218 \| good
2025-06-04T21:00:00.000Z	66 \| moderate	16.714 \| fine	74.047 \| fine	33.903 \| good	1.015 \| good	3.492 \| good	0.218 \| good
2025-06-04T22:00:00.000Z	66 \| moderate	16.936 \| fine	75.08 \| fine	33.103 \| good	0.872 \| good	3.989 \| good	0.309 \| good
2025-06-04T23:00:00.000Z	64 \| moderate	16.409 \| fine	72.676 \| fine	34.142 \| good	0.808 \| good	3.759 \| good	0.31 \| good
2025-06-05T00:00:00.000Z	64 \| moderate	16.198 \| fine	72.145 \| fine	33.131 \| good	0.79 \| good	4.263 \| good	0.309 \| good
2025-06-05T01:00:00.000Z	64 \| moderate	16.3 \| fine	71.536 \| fine	32.163 \| good	0.785 \| good	3.74 \| good	0.308 \| good
2025-06-05T02:00:00.000Z	62 \| moderate	15.405 \| fine	69.433 \| fine	31.365 \| good	0.868 \| good	3.589 \| good	0.218 \| good
2025-06-05T03:00:00.000Z	64 \| moderate	15.71 \| fine	69.334 \| fine	30.278 \| good	0.796 \| good	3.587 \| good	0.218 \| good
2025-06-05T04:00:00.000Z	54 \| moderate	11.482 \| good	50.861 \| good	29.36 \| good	0.729 \| good	4.238 \| good	0.218 \| good
2025-06-05T05:00:00.000Z	52 \| moderate	10.311 \| good	45.498 \| good	27.468 \| good	0.719 \| good	5.408 \| good	0.219 \| good
2025-06-05T06:00:00.000Z	49 \| good	9.208 \| good	41.392 \| good	28.17 \| good	0.686 \| good	3.955 \| good	0.217 \| good
2025-06-05T07:00:00.000Z	52 \| moderate	9.644 \| good	43.871 \| good	28.983 \| good	0.691 \| good	2.4 \| good	0.217 \| good
2025-06-05T08:00:00.000Z	44 \| good	8.402 \| good	36.914 \| good	28.975 \| good	0.71 \| good	2.766 \| good	0.216 \| good
2025-06-05T09:00:00.000Z	44 \| good	8.136 \| good	36.285 \| good	28.001 \| good	0.78 \| good	3.187 \| good	0.301 \| good
2025-06-05T10:00:00.000Z	49 \| good	9.467 \| good	43.119 \| good	27.073 \| good	0.984 \| good	2.856 \| good	0.209 \| good
2025-06-05T11:00:00.000Z	52 \| moderate	9.631 \| good	42.591 \| good	27.09 \| good	0.923 \| good	1.936 \| good	0.209 \| good
2025-06-05T12:00:00.000Z	49 \| good	9.33 \| good	41.813 \| good	26.899 \| good	1.124 \| good	1.982 \| good	0.209 \| good
2025-06-05T13:00:00.000Z	49 \| good	8.763 \| good	38.835 \| good	26.915 \| good	1.636 \| good	3.332 \| good	0.216 \| good
2025-06-05T14:00:00.000Z	49 \| good	8.553 \| good	37.314 \| good	27.812 \| good	1.192 \| good	2.78 \| good	0.219 \| good
2025-06-05T15:00:00.000Z	49 \| good	8.665 \| good	37.975 \| good	26 \| good	1.199 \| good	3.077 \| good	0.22 \| good
2025-06-05T16:00:00.000Z	52 \| moderate	10.415 \| good	46.101 \| good	24.185 \| good	1.169 \| good	5.766 \| good	0.217 \| good
2025-06-05T17:00:00.000Z	54 \| moderate	10.574 \| good	46.998 \| good	25.282 \| good	1.255 \| good	4.073 \| good	0.217 \| good
2025-06-05T18:00:00.000Z	52 \| moderate	10.258 \| good	45.468 \| good	25.356 \| good	1.165 \| good	2.403 \| good	0.221 \| good
2025-06-05T19:00:00.000Z	44 \| good	8.243 \| good	36.174 \| good	27.292 \| good	0.989 \| good	2.338 \| good	0.219 \| good
2025-06-05T20:00:00.000Z	38 \| good	6.805 \| good	30.808 \| good	30.909 \| good	0.643 \| good	3.274 \| good	0.219 \| good
2025-06-05T21:00:00.000Z	38 \| good	7.486 \| good	33.059 \| good	33.687 \| good	0.963 \| good	3.341 \| good	0.217 \| good
2025-06-05T22:00:00.000Z	44 \| good	8.173 \| good	36.281 \| good	33.77 \| good	0.724 \| good	3.872 \| good	0.217 \| good
2025-06-05T23:00:00.000Z	49 \| good	9.373 \| good	42.35 \| good	31.961 \| good	1.186 \| good	2.999 \| good	0.219 \| good
2025-06-06T00:00:00.000Z	49 \| good	9.057 \| good	40.37 \| good	31.953 \| good	0.901 \| good	2.26 \| good	0.217 \| good
2025-06-06T01:00:00.000Z	44 \| good	8.45 \| good	37.304 \| good	31.063 \| good	0.698 \| good	2.294 \| good	0.217 \| good
2025-06-06T02:00:00.000Z	44 \| good	8.125 \| good	36.248 \| good	30.049 \| good	0.721 \| good	2.099 \| good	0.216 \| good
2025-06-06T03:00:00.000Z	33 \| good	6.159 \| good	27.02 \| good	28.291 \| good	0.847 \| good	2.182 \| good	0.217 \| good
2025-06-06T04:00:00.000Z	27 \| good	4.666 \| good	20.743 \| good	28.162 \| good	0.802 \| good	2.358 \| good	0.217 \| good
2025-06-06T05:00:00.000Z	27 \| good	4.729 \| good	21.039 \| good	28.102 \| good	0.64 \| good	2.775 \| good	0.217 \| good
2025-06-06T06:00:00.000Z	27 \| good	4.739 \| good	20.704 \| good	26.147 \| good	0.52 \| good	3.254 \| good	0.217 \| good
2025-06-06T07:00:00.000Z	27 \| good	4.57 \| good	19.77 \| good	26.579 \| good	0.594 \| good	3.905 \| good	0.26 \| good
2025-06-06T08:00:00.000Z	58 \| moderate	12.556 \| fine	56.769 \| fine	24.714 \| good	0.759 \| good	5.619 \| good	0.111 \| good
2025-06-06T09:00:00.000Z	58 \| moderate	13.145 \| fine	58.849 \| fine	24.186 \| good	0.91 \| good	6.715 \| good	0.118 \| good
2025-06-06T10:00:00.000Z	56 \| moderate	12.054 \| good	54.237 \| good	25.627 \| good	0.618 \| good	3.955 \| good	0.1 \| good
2025-06-06T11:00:00.000Z	58 \| moderate	12.885 \| fine	58.232 \| fine	26.078 \| good	0.772 \| good	4.986 \| good	0.106 \| good
2025-06-06T12:00:00.000Z	56 \| moderate	12.281 \| fine	55.041 \| fine	29.524 \| good	0.926 \| good	6.018 \| good	0.112 \| good
2025-06-06T13:00:00.000Z	58 \| moderate	12.813 \| fine	58.119 \| fine	27.24 \| good	0.725 \| good	2.877 \| good	0.099 \| good
2025-06-06T14:00:00.000Z	62 \| moderate	14.906 \| fine	66.924 \| fine	24.728 \| good	0.91 \| good	3.543 \| good	0.104 \| good
2025-06-06T15:00:00.000Z	62 \| moderate	15.423 \| fine	69.39 \| fine	24.772 \| good	1.094 \| good	4.21 \| good	0.109 \| good
2025-06-06T16:00:00.000Z	60 \| moderate	13.522 \| fine	60.652 \| fine	25.111 \| good	0.741 \| good	2.228 \| good	0.105 \| good
2025-06-06T17:00:00.000Z	60 \| moderate	14.02 \| fine	63.093 \| fine	27.624 \| good	0.891 \| good	2.672 \| good	0.11 \| good
2025-06-06T18:00:00.000Z	58 \| moderate	13.277 \| fine	59.202 \| fine	30.249 \| good	1.04 \| good	3.117 \| good	0.115 \| good
2025-06-06T19:00:00.000Z	62 \| moderate	15.013 \| fine	67.188 \| fine	32.83 \| good	0.806 \| good	1.495 \| good	0.102 \| good
2025-06-06T20:00:00.000Z	62 \| moderate	14.861 \| fine	66.659 \| fine	34.042 \| good	0.948 \| good	1.735 \| good	0.107 \| good
2025-06-06T21:00:00.000Z	62 \| moderate	14.549 \| fine	65.106 \| fine	33.834 \| good	1.091 \| good	1.974 \| good	0.112 \| good
2025-06-06T22:00:00.000Z	58 \| moderate	13.473 \| fine	60.825 \| fine	34.309 \| good	0.732 \| good	1.726 \| good	0.102 \| good
2025-06-06T23:00:00.000Z	62 \| moderate	14.504 \| fine	65.211 \| fine	32.103 \| good	0.879 \| good	1.895 \| good	0.107 \| good
2025-06-07T00:00:00.000Z	56 \| moderate	12.409 \| fine	55.608 \| fine	29.556 \| good	1.025 \| good	2.065 \| good	0.111 \| good
2025-06-07T01:00:00.000Z	58 \| moderate	13.454 \| fine	60.915 \| fine	29.17 \| good	0.762 \| good	4.631 \| good	0.111 \| good
2025-06-07T02:00:00.000Z	58 \| moderate	13.169 \| fine	59.258 \| fine	26.429 \| good	0.924 \| good	5.003 \| good	0.115 \| good
2025-06-07T03:00:00.000Z	58 \| moderate	13.334 \| fine	59.503 \| fine	22.713 \| good	1.086 \| good	5.375 \| good	0.119 \| good
2025-06-07T04:00:00.000Z	62 \| moderate	14.621 \| fine	65.269 \| fine	19.321 \| good	1.075 \| good	7.45 \| good	0.119 \| good
2025-06-07T05:00:00.000Z	60 \| moderate	13.729 \| fine	61.529 \| fine	20.419 \| good	1.242 \| good	8.549 \| good	0.125 \| good
2025-06-07T06:00:00.000Z	58 \| moderate	12.5 \| fine	56.664 \| fine	21.939 \| good	1.409 \| good	9.648 \| good	0.132 \| good
2025-06-07T07:00:00.000Z	58 \| moderate	12.885 \| fine	57.568 \| fine	22.906 \| good	1.129 \| good	8.339 \| good	0.122 \| good
2025-06-07T08:00:00.000Z	58 \| moderate	12.672 \| fine	57.149 \| fine	21.051 \| good	1.312 \| good	10.083 \| good	0.132 \| good
2025-06-07T09:00:00.000Z	56 \| moderate	12.364 \| fine	55.568 \| fine	19.903 \| good	1.495 \| good	11.828 \| good	0.142 \| good
2025-06-07T10:00:00.000Z	60 \| moderate	13.934 \| fine	62.533 \| fine	20.634 \| good	1.021 \| good	7.28 \| good	0.115 \| good
2025-06-07T11:00:00.000Z	56 \| moderate	11.874 \| good	52.316 \| good	18.99 \| good	1.203 \| good	9.301 \| good	0.126 \| good
2025-06-07T12:00:00.000Z	64 \| moderate	15.588 \| fine	69.324 \| fine	23.111 \| good	1.386 \| good	11.322 \| good	0.137 \| good
2025-06-07T13:00:00.000Z	58 \| moderate	13.323 \| fine	60.381 \| fine	22.756 \| good	1.194 \| good	3.989 \| good	0.104 \| good
2025-06-07T14:00:00.000Z	60 \| moderate	13.963 \| fine	62.915 \| fine	23.541 \| good	1.466 \| good	4.952 \| good	0.111 \| good
2025-06-07T15:00:00.000Z	58 \| moderate	13.428 \| fine	60.838 \| fine	22.989 \| good	1.739 \| good	5.915 \| good	0.118 \| good
2025-06-07T16:00:00.000Z	54 \| moderate	11.075 \| good	49.192 \| good	22.901 \| good	1.011 \| good	2.348 \| good	0.103 \| good
2025-06-07T17:00:00.000Z	54 \| moderate	10.787 \| good	47.959 \| good	25.764 \| good	1.159 \| good	2.842 \| good	0.108 \| good
2025-06-07T18:00:00.000Z	54 \| moderate	10.564 \| good	47.115 \| good	29.095 \| good	1.307 \| good	3.336 \| good	0.113 \| good
2025-06-07T19:00:00.000Z	56 \| moderate	12.155 \| fine	54.407 \| good	33.788 \| good	0.859 \| good	1.211 \| good	0.098 \| good
2025-06-07T20:00:00.000Z	56 \| moderate	11.923 \| good	52.905 \| good	35.754 \| good	0.97 \| good	1.438 \| good	0.103 \| good
2025-06-07T21:00:00.000Z	54 \| moderate	11.474 \| good	50.714 \| good	35.41 \| good	1.081 \| good	1.665 \| good	0.107 \| good
2025-06-07T22:00:00.000Z	54 \| moderate	10.883 \| good	48.434 \| good	33.666 \| good	0.686 \| good	1.427 \| good	0.099 \| good
2025-06-07T23:00:00.000Z	56 \| moderate	12.345 \| fine	55.37 \| fine	31.667 \| good	0.784 \| good	1.65 \| good	0.103 \| good
2025-06-08T00:00:00.000Z	56 \| moderate	11.592 \| good	51.452 \| good	31.299 \| good	0.882 \| good	1.872 \| good	0.106 \| good
2025-06-08T01:00:00.000Z	58 \| moderate	13.187 \| fine	59.446 \| fine	29.597 \| good	0.616 \| good	3.262 \| good	0.105 \| good
2025-06-08T02:00:00.000Z	58 \| moderate	12.996 \| fine	58.951 \| fine	28.184 \| good	0.75 \| good	3.962 \| good	0.11 \| good
2025-06-08T03:00:00.000Z	58 \| moderate	13.343 \| fine	59.609 \| fine	25.754 \| good	0.885 \| good	4.661 \| good	0.115 \| good
2025-06-08T04:00:00.000Z	62 \| moderate	14.833 \| fine	65.887 \| fine	24.278 \| good	0.697 \| good	3.667 \| good	0.105 \| good
2025-06-08T05:00:00.000Z	60 \| moderate	14.156 \| fine	63.419 \| fine	24.961 \| good	0.885 \| good	4.758 \| good	0.11 \| good
2025-06-08T06:00:00.000Z	56 \| moderate	11.667 \| good	15.704 \| good	29.346 \| good	1.057 \| good	5.764 \| good	0.115 \| good
2025-06-08T07:00:00.000Z	58 \| moderate	13.09 \| fine	59.199 \| fine	23.956 \| good	0.74 \| good	3.858 \| good	0.106 \| good

San Lorenzo

Get reliable air quality data to drive your business

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

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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 05:00:00 on 2025-06-05.

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 06:00:00 on 2025-06-06.

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

As of now, the AQI in San Lorenzo, California is 27, indicating Good 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 4.57 μg/m³.

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

The PM₁₀ concentration in San Lorenzo, California is 19.77 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 0.26 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 0.594 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 26.579 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 3.905 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-04T08:00:00.000Z	58 \| moderate	12.953 \| fine	58.859 \| fine	28.332 \| good	0.757 \| good	4.461 \| good	0.218 \| good
2025-06-04T09:00:00.000Z	62 \| moderate	15.295 \| fine	68.391 \| fine	29.119 \| good	0.766 \| good	3.586 \| good	0.211 \| good
2025-06-04T10:00:00.000Z	60 \| moderate	13.8 \| fine	61.467 \| fine	28.145 \| good	0.726 \| good	3.755 \| good	0.211 \| good
2025-06-04T11:00:00.000Z	58 \| moderate	13.134 \| fine	59.082 \| fine	29.947 \| good	0.721 \| good	2.399 \| good	0.21 \| good
2025-06-04T12:00:00.000Z	56 \| moderate	12.321 \| fine	55.04 \| fine	29.933 \| good	0.718 \| good	2.438 \| good	0.21 \| good
2025-06-04T13:00:00.000Z	52 \| moderate	10.416 \| good	46.027 \| good	22.8 \| good	1.021 \| good	3.936 \| good	0.12 \| good
2025-06-04T14:00:00.000Z	60 \| moderate	13.951 \| fine	63.48 \| fine	27.993 \| good	0.783 \| good	3.726 \| good	0.218 \| good
2025-06-04T15:00:00.000Z	62 \| moderate	14.795 \| fine	65.652 \| fine	26.966 \| good	0.809 \| good	4.732 \| good	0.223 \| good
2025-06-04T16:00:00.000Z	64 \| moderate	15.935 \| fine	71.115 \| fine	26.071 \| good	0.9 \| good	5.435 \| good	0.311 \| good
2025-06-04T17:00:00.000Z	67 \| moderate	18.13 \| fine	79.575 \| fine	25.122 \| good	0.823 \| good	7.05 \| good	0.401 \| good
2025-06-04T18:00:00.000Z	66 \| moderate	17.401 \| fine	77.155 \| fine	23.459 \| good	1.11 \| good	8.404 \| good	0.311 \| good
2025-06-04T19:00:00.000Z	64 \| moderate	16.203 \| fine	71.978 \| fine	27.12 \| good	1.689 \| good	5.095 \| good	0.308 \| good
2025-06-04T20:00:00.000Z	64 \| moderate	15.665 \| fine	70.719 \| fine	30.911 \| good	1.137 \| good	3.878 \| good	0.218 \| good
2025-06-04T21:00:00.000Z	66 \| moderate	16.714 \| fine	74.047 \| fine	33.903 \| good	1.015 \| good	3.492 \| good	0.218 \| good
2025-06-04T22:00:00.000Z	66 \| moderate	16.936 \| fine	75.08 \| fine	33.103 \| good	0.872 \| good	3.989 \| good	0.309 \| good
2025-06-04T23:00:00.000Z	64 \| moderate	16.409 \| fine	72.676 \| fine	34.142 \| good	0.808 \| good	3.759 \| good	0.31 \| good
2025-06-05T00:00:00.000Z	64 \| moderate	16.198 \| fine	72.145 \| fine	33.131 \| good	0.79 \| good	4.263 \| good	0.309 \| good
2025-06-05T01:00:00.000Z	64 \| moderate	16.3 \| fine	71.536 \| fine	32.163 \| good	0.785 \| good	3.74 \| good	0.308 \| good
2025-06-05T02:00:00.000Z	62 \| moderate	15.405 \| fine	69.433 \| fine	31.365 \| good	0.868 \| good	3.589 \| good	0.218 \| good
2025-06-05T03:00:00.000Z	64 \| moderate	15.71 \| fine	69.334 \| fine	30.278 \| good	0.796 \| good	3.587 \| good	0.218 \| good
2025-06-05T04:00:00.000Z	54 \| moderate	11.482 \| good	50.861 \| good	29.36 \| good	0.729 \| good	4.238 \| good	0.218 \| good
2025-06-05T05:00:00.000Z	52 \| moderate	10.311 \| good	45.498 \| good	27.468 \| good	0.719 \| good	5.408 \| good	0.219 \| good
2025-06-05T06:00:00.000Z	49 \| good	9.208 \| good	41.392 \| good	28.17 \| good	0.686 \| good	3.955 \| good	0.217 \| good
2025-06-05T07:00:00.000Z	52 \| moderate	9.644 \| good	43.871 \| good	28.983 \| good	0.691 \| good	2.4 \| good	0.217 \| good
2025-06-05T08:00:00.000Z	44 \| good	8.402 \| good	36.914 \| good	28.975 \| good	0.71 \| good	2.766 \| good	0.216 \| good
2025-06-05T09:00:00.000Z	44 \| good	8.136 \| good	36.285 \| good	28.001 \| good	0.78 \| good	3.187 \| good	0.301 \| good
2025-06-05T10:00:00.000Z	49 \| good	9.467 \| good	43.119 \| good	27.073 \| good	0.984 \| good	2.856 \| good	0.209 \| good
2025-06-05T11:00:00.000Z	52 \| moderate	9.631 \| good	42.591 \| good	27.09 \| good	0.923 \| good	1.936 \| good	0.209 \| good
2025-06-05T12:00:00.000Z	49 \| good	9.33 \| good	41.813 \| good	26.899 \| good	1.124 \| good	1.982 \| good	0.209 \| good
2025-06-05T13:00:00.000Z	49 \| good	8.763 \| good	38.835 \| good	26.915 \| good	1.636 \| good	3.332 \| good	0.216 \| good
2025-06-05T14:00:00.000Z	49 \| good	8.553 \| good	37.314 \| good	27.812 \| good	1.192 \| good	2.78 \| good	0.219 \| good
2025-06-05T15:00:00.000Z	49 \| good	8.665 \| good	37.975 \| good	26 \| good	1.199 \| good	3.077 \| good	0.22 \| good
2025-06-05T16:00:00.000Z	52 \| moderate	10.415 \| good	46.101 \| good	24.185 \| good	1.169 \| good	5.766 \| good	0.217 \| good
2025-06-05T17:00:00.000Z	54 \| moderate	10.574 \| good	46.998 \| good	25.282 \| good	1.255 \| good	4.073 \| good	0.217 \| good
2025-06-05T18:00:00.000Z	52 \| moderate	10.258 \| good	45.468 \| good	25.356 \| good	1.165 \| good	2.403 \| good	0.221 \| good
2025-06-05T19:00:00.000Z	44 \| good	8.243 \| good	36.174 \| good	27.292 \| good	0.989 \| good	2.338 \| good	0.219 \| good
2025-06-05T20:00:00.000Z	38 \| good	6.805 \| good	30.808 \| good	30.909 \| good	0.643 \| good	3.274 \| good	0.219 \| good
2025-06-05T21:00:00.000Z	38 \| good	7.486 \| good	33.059 \| good	33.687 \| good	0.963 \| good	3.341 \| good	0.217 \| good
2025-06-05T22:00:00.000Z	44 \| good	8.173 \| good	36.281 \| good	33.77 \| good	0.724 \| good	3.872 \| good	0.217 \| good
2025-06-05T23:00:00.000Z	49 \| good	9.373 \| good	42.35 \| good	31.961 \| good	1.186 \| good	2.999 \| good	0.219 \| good
2025-06-06T00:00:00.000Z	49 \| good	9.057 \| good	40.37 \| good	31.953 \| good	0.901 \| good	2.26 \| good	0.217 \| good
2025-06-06T01:00:00.000Z	44 \| good	8.45 \| good	37.304 \| good	31.063 \| good	0.698 \| good	2.294 \| good	0.217 \| good
2025-06-06T02:00:00.000Z	44 \| good	8.125 \| good	36.248 \| good	30.049 \| good	0.721 \| good	2.099 \| good	0.216 \| good
2025-06-06T03:00:00.000Z	33 \| good	6.159 \| good	27.02 \| good	28.291 \| good	0.847 \| good	2.182 \| good	0.217 \| good
2025-06-06T04:00:00.000Z	27 \| good	4.666 \| good	20.743 \| good	28.162 \| good	0.802 \| good	2.358 \| good	0.217 \| good
2025-06-06T05:00:00.000Z	27 \| good	4.729 \| good	21.039 \| good	28.102 \| good	0.64 \| good	2.775 \| good	0.217 \| good
2025-06-06T06:00:00.000Z	27 \| good	4.739 \| good	20.704 \| good	26.147 \| good	0.52 \| good	3.254 \| good	0.217 \| good
2025-06-06T07:00:00.000Z	27 \| good	4.57 \| good	19.77 \| good	26.579 \| good	0.594 \| good	3.905 \| good	0.26 \| good
2025-06-06T08:00:00.000Z	58 \| moderate	12.556 \| fine	56.769 \| fine	24.714 \| good	0.759 \| good	5.619 \| good	0.111 \| good
2025-06-06T09:00:00.000Z	58 \| moderate	13.145 \| fine	58.849 \| fine	24.186 \| good	0.91 \| good	6.715 \| good	0.118 \| good
2025-06-06T10:00:00.000Z	56 \| moderate	12.054 \| good	54.237 \| good	25.627 \| good	0.618 \| good	3.955 \| good	0.1 \| good
2025-06-06T11:00:00.000Z	58 \| moderate	12.885 \| fine	58.232 \| fine	26.078 \| good	0.772 \| good	4.986 \| good	0.106 \| good
2025-06-06T12:00:00.000Z	56 \| moderate	12.281 \| fine	55.041 \| fine	29.524 \| good	0.926 \| good	6.018 \| good	0.112 \| good
2025-06-06T13:00:00.000Z	58 \| moderate	12.813 \| fine	58.119 \| fine	27.24 \| good	0.725 \| good	2.877 \| good	0.099 \| good
2025-06-06T14:00:00.000Z	62 \| moderate	14.906 \| fine	66.924 \| fine	24.728 \| good	0.91 \| good	3.543 \| good	0.104 \| good
2025-06-06T15:00:00.000Z	62 \| moderate	15.423 \| fine	69.39 \| fine	24.772 \| good	1.094 \| good	4.21 \| good	0.109 \| good
2025-06-06T16:00:00.000Z	60 \| moderate	13.522 \| fine	60.652 \| fine	25.111 \| good	0.741 \| good	2.228 \| good	0.105 \| good
2025-06-06T17:00:00.000Z	60 \| moderate	14.02 \| fine	63.093 \| fine	27.624 \| good	0.891 \| good	2.672 \| good	0.11 \| good
2025-06-06T18:00:00.000Z	58 \| moderate	13.277 \| fine	59.202 \| fine	30.249 \| good	1.04 \| good	3.117 \| good	0.115 \| good
2025-06-06T19:00:00.000Z	62 \| moderate	15.013 \| fine	67.188 \| fine	32.83 \| good	0.806 \| good	1.495 \| good	0.102 \| good
2025-06-06T20:00:00.000Z	62 \| moderate	14.861 \| fine	66.659 \| fine	34.042 \| good	0.948 \| good	1.735 \| good	0.107 \| good
2025-06-06T21:00:00.000Z	62 \| moderate	14.549 \| fine	65.106 \| fine	33.834 \| good	1.091 \| good	1.974 \| good	0.112 \| good
2025-06-06T22:00:00.000Z	58 \| moderate	13.473 \| fine	60.825 \| fine	34.309 \| good	0.732 \| good	1.726 \| good	0.102 \| good
2025-06-06T23:00:00.000Z	62 \| moderate	14.504 \| fine	65.211 \| fine	32.103 \| good	0.879 \| good	1.895 \| good	0.107 \| good
2025-06-07T00:00:00.000Z	56 \| moderate	12.409 \| fine	55.608 \| fine	29.556 \| good	1.025 \| good	2.065 \| good	0.111 \| good
2025-06-07T01:00:00.000Z	58 \| moderate	13.454 \| fine	60.915 \| fine	29.17 \| good	0.762 \| good	4.631 \| good	0.111 \| good
2025-06-07T02:00:00.000Z	58 \| moderate	13.169 \| fine	59.258 \| fine	26.429 \| good	0.924 \| good	5.003 \| good	0.115 \| good
2025-06-07T03:00:00.000Z	58 \| moderate	13.334 \| fine	59.503 \| fine	22.713 \| good	1.086 \| good	5.375 \| good	0.119 \| good
2025-06-07T04:00:00.000Z	62 \| moderate	14.621 \| fine	65.269 \| fine	19.321 \| good	1.075 \| good	7.45 \| good	0.119 \| good
2025-06-07T05:00:00.000Z	60 \| moderate	13.729 \| fine	61.529 \| fine	20.419 \| good	1.242 \| good	8.549 \| good	0.125 \| good
2025-06-07T06:00:00.000Z	58 \| moderate	12.5 \| fine	56.664 \| fine	21.939 \| good	1.409 \| good	9.648 \| good	0.132 \| good
2025-06-07T07:00:00.000Z	58 \| moderate	12.885 \| fine	57.568 \| fine	22.906 \| good	1.129 \| good	8.339 \| good	0.122 \| good
2025-06-07T08:00:00.000Z	58 \| moderate	12.672 \| fine	57.149 \| fine	21.051 \| good	1.312 \| good	10.083 \| good	0.132 \| good
2025-06-07T09:00:00.000Z	56 \| moderate	12.364 \| fine	55.568 \| fine	19.903 \| good	1.495 \| good	11.828 \| good	0.142 \| good
2025-06-07T10:00:00.000Z	60 \| moderate	13.934 \| fine	62.533 \| fine	20.634 \| good	1.021 \| good	7.28 \| good	0.115 \| good
2025-06-07T11:00:00.000Z	56 \| moderate	11.874 \| good	52.316 \| good	18.99 \| good	1.203 \| good	9.301 \| good	0.126 \| good
2025-06-07T12:00:00.000Z	64 \| moderate	15.588 \| fine	69.324 \| fine	23.111 \| good	1.386 \| good	11.322 \| good	0.137 \| good
2025-06-07T13:00:00.000Z	58 \| moderate	13.323 \| fine	60.381 \| fine	22.756 \| good	1.194 \| good	3.989 \| good	0.104 \| good
2025-06-07T14:00:00.000Z	60 \| moderate	13.963 \| fine	62.915 \| fine	23.541 \| good	1.466 \| good	4.952 \| good	0.111 \| good
2025-06-07T15:00:00.000Z	58 \| moderate	13.428 \| fine	60.838 \| fine	22.989 \| good	1.739 \| good	5.915 \| good	0.118 \| good
2025-06-07T16:00:00.000Z	54 \| moderate	11.075 \| good	49.192 \| good	22.901 \| good	1.011 \| good	2.348 \| good	0.103 \| good
2025-06-07T17:00:00.000Z	54 \| moderate	10.787 \| good	47.959 \| good	25.764 \| good	1.159 \| good	2.842 \| good	0.108 \| good
2025-06-07T18:00:00.000Z	54 \| moderate	10.564 \| good	47.115 \| good	29.095 \| good	1.307 \| good	3.336 \| good	0.113 \| good
2025-06-07T19:00:00.000Z	56 \| moderate	12.155 \| fine	54.407 \| good	33.788 \| good	0.859 \| good	1.211 \| good	0.098 \| good
2025-06-07T20:00:00.000Z	56 \| moderate	11.923 \| good	52.905 \| good	35.754 \| good	0.97 \| good	1.438 \| good	0.103 \| good
2025-06-07T21:00:00.000Z	54 \| moderate	11.474 \| good	50.714 \| good	35.41 \| good	1.081 \| good	1.665 \| good	0.107 \| good
2025-06-07T22:00:00.000Z	54 \| moderate	10.883 \| good	48.434 \| good	33.666 \| good	0.686 \| good	1.427 \| good	0.099 \| good
2025-06-07T23:00:00.000Z	56 \| moderate	12.345 \| fine	55.37 \| fine	31.667 \| good	0.784 \| good	1.65 \| good	0.103 \| good
2025-06-08T00:00:00.000Z	56 \| moderate	11.592 \| good	51.452 \| good	31.299 \| good	0.882 \| good	1.872 \| good	0.106 \| good
2025-06-08T01:00:00.000Z	58 \| moderate	13.187 \| fine	59.446 \| fine	29.597 \| good	0.616 \| good	3.262 \| good	0.105 \| good
2025-06-08T02:00:00.000Z	58 \| moderate	12.996 \| fine	58.951 \| fine	28.184 \| good	0.75 \| good	3.962 \| good	0.11 \| good
2025-06-08T03:00:00.000Z	58 \| moderate	13.343 \| fine	59.609 \| fine	25.754 \| good	0.885 \| good	4.661 \| good	0.115 \| good
2025-06-08T04:00:00.000Z	62 \| moderate	14.833 \| fine	65.887 \| fine	24.278 \| good	0.697 \| good	3.667 \| good	0.105 \| good
2025-06-08T05:00:00.000Z	60 \| moderate	14.156 \| fine	63.419 \| fine	24.961 \| good	0.885 \| good	4.758 \| good	0.11 \| good
2025-06-08T06:00:00.000Z	56 \| moderate	11.667 \| good	15.704 \| good	29.346 \| good	1.057 \| good	5.764 \| good	0.115 \| good
2025-06-08T07:00:00.000Z	58 \| moderate	13.09 \| fine	59.199 \| fine	23.956 \| good	0.74 \| good	3.858 \| good	0.106 \| good

Real-time 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)

Track live San Lorenzo, California air quality forecast and history

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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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Frequently asked questions

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

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

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

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

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

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

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

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

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

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

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

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

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