What is the current level of PM10 in San Carlos, California?

San Carlos, California currently has a PM10 concentration of 51.51 μg/m3.

What is the current level of sulfur dioxide (SO2) in San Carlos, California?

The current sulfur dioxide (SO2) concentration in San Carlos, California is 0.327 ppb.

What is the current level of ozone (O3) in San Carlos, California?

San Carlos, California currently has an ozone (O3) concentration of 29.704 ppm.

What is the current level of nitrogen dioxide (NO2) in San Carlos, California?

The current level of nitrogen dioxide (NO2) in San Carlos, California is 4.432 ppb.

Current air quality index in San Carlos, California today

Q: What is the PM2.5 concentration in San Carlos, California right now?

San Carlos, California currently has a PM2.5 concentration of 11.455 μg/m3.

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

Last updated: ... (Local time)

Common air pollutants in San Carlos, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

11.46 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

51.51 μg/m³

155

255

425

605+

Ozone (O₃)

29.70 ppb

201

201+

Sulfur Dioxide (SO₂)

0.33 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.43 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.30 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Looks like we don't have this data available right now

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San Carlos, California

Scroll To Air Quality Map

Track live San Carlos, California air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-03-08T06:00:00.000Z	22 \| good	4.348 \| good	13.881 \| good	19.366 \| good	0.509 \| good	12.623 \| good	0.57 \| good
2026-03-08T07:00:00.000Z	27 \| good	5.384 \| good	21.423 \| good	20.967 \| good	0.472 \| good	15.628 \| good	0.567 \| good
2026-03-08T08:00:00.000Z	38 \| good	7.043 \| good	27.197 \| good	20.473 \| good	0.459 \| good	11.791 \| good	0.636 \| good
2026-03-08T09:00:00.000Z	22 \| good	3.846 \| good	18.811 \| good	18.224 \| good	0.487 \| good	12.949 \| good	0.636 \| good
2026-03-08T10:00:00.000Z	17 \| good	2.937 \| good	11.117 \| good	17.598 \| good	0.348 \| good	7.673 \| good	0.228 \| good
2026-03-08T11:00:00.000Z	33 \| good	5.631 \| good	15.054 \| good	22.337 \| good	0.378 \| good	11.119 \| good	0.2 \| good
2026-03-08T12:00:00.000Z	44 \| good	8.192 \| good	14.856 \| good	23.068 \| good	0.166 \| good	14.764 \| good	0.588 \| good
2026-03-08T13:00:00.000Z	44 \| good	8.488 \| good	34.19 \| good	14.854 \| good	0.446 \| good	10.835 \| good	0.585 \| good
2026-03-08T14:00:00.000Z	38 \| good	7.461 \| good	23.812 \| good	11.434 \| good	0.486 \| good	11.3 \| good	0.681 \| good
2026-03-08T15:00:00.000Z	49 \| good	8.531 \| good	34.712 \| good	7.755 \| good	0.52 \| good	11.85 \| good	0.707 \| good
2026-03-08T16:00:00.000Z	49 \| good	8.643 \| good	41.329 \| good	6.659 \| good	0.548 \| good	12.492 \| good	0.662 \| good
2026-03-08T17:00:00.000Z	38 \| good	6.754 \| good	33.447 \| good	12.45 \| good	1.005 \| good	9.94 \| good	0.596 \| good
2026-03-08T18:00:00.000Z	27 \| good	5.044 \| good	21.548 \| good	13.58 \| good	1.226 \| good	12.166 \| good	0.605 \| good
2026-03-08T19:00:00.000Z	38 \| good	7.017 \| good	31.494 \| good	16.161 \| good	1.231 \| good	9.851 \| good	0.535 \| good
2026-03-08T20:00:00.000Z	44 \| good	8.054 \| good	33.424 \| good	21.562 \| good	1.178 \| good	9.077 \| good	0.502 \| good
2026-03-08T21:00:00.000Z	38 \| good	6.684 \| good	27.18 \| good	25.499 \| good	0.847 \| good	7.598 \| good	0.485 \| good
2026-03-08T22:00:00.000Z	28 \| good	4.815 \| good	24.489 \| good	29.911 \| good	0.679 \| good	7.274 \| good	0.434 \| good
2026-03-08T23:00:00.000Z	33 \| good	5.545 \| good	22.44 \| good	33.219 \| good	0.622 \| good	7.43 \| good	0.453 \| good
2026-03-09T00:00:00.000Z	35 \| good	5.966 \| good	21.158 \| good	38.293 \| good	0.442 \| good	7.099 \| good	0.452 \| good
2026-03-09T01:00:00.000Z	34 \| good	3.72 \| good	15.824 \| good	36.898 \| good	0.463 \| good	5.692 \| good	0.45 \| good
2026-03-09T02:00:00.000Z	35 \| good	3.916 \| good	17.583 \| good	37.985 \| good	0.538 \| good	4.7 \| good	0.43 \| good
2026-03-09T03:00:00.000Z	54 \| moderate	10.703 \| good	47.594 \| good	38.291 \| good	1.391 \| good	21.955 \| good	0.243 \| good
2026-03-09T04:00:00.000Z	32 \| good	4.839 \| good	25.311 \| good	35.467 \| good	0.413 \| good	8.064 \| good	0.497 \| good
2026-03-09T05:00:00.000Z	44 \| good	7.588 \| good	32.468 \| good	30.445 \| good	0.419 \| good	9.083 \| good	0.498 \| good
2026-03-09T06:00:00.000Z	39 \| good	6.005 \| good	41.522 \| good	33.509 \| good	0.338 \| good	13.191 \| good	0.5 \| good
2026-03-09T07:00:00.000Z	33 \| good	6.275 \| good	31.391 \| good	28.937 \| good	0.336 \| good	9.33 \| good	0.468 \| good
2026-03-09T08:00:00.000Z	33 \| good	6.391 \| good	18.824 \| good	26.264 \| good	0.327 \| good	5.598 \| good	0.428 \| good
2026-03-09T09:00:00.000Z	33 \| good	6.224 \| good	9.321 \| good	23.65 \| good	0.293 \| good	4.171 \| good	0.413 \| good
2026-03-09T10:00:00.000Z	20 \| good	1.938 \| good	12.166 \| good	22.307 \| good	0.257 \| good	3.664 \| good	0.446 \| good
2026-03-09T11:00:00.000Z	13 \| good	2.15 \| good	8.217 \| good	14.076 \| good	0.328 \| good	3.652 \| good	0.446 \| good
2026-03-09T12:00:00.000Z	19 \| good	2.342 \| good	5.671 \| good	21.408 \| good	0.3 \| good	3.408 \| good	0.446 \| good
2026-03-09T13:00:00.000Z	20 \| good	3.161 \| good	13.525 \| good	22.035 \| good	0.477 \| good	7.466 \| good	0.529 \| good
2026-03-09T14:00:00.000Z	19 \| good	0.9 \| good	4.03 \| good	19.592 \| good	0.444 \| good	9.54 \| good	0.578 \| good
2026-03-09T15:00:00.000Z	20 \| good	3.36 \| good	21.614 \| good	11.537 \| good	0.349 \| good	13.125 \| good	0.675 \| good
2026-03-09T16:00:00.000Z	15 \| good	2.369 \| good	16.282 \| good	7.401 \| good	0.431 \| good	12.222 \| good	0.757 \| good
2026-03-09T17:00:00.000Z	27 \| good	5.272 \| good	21.817 \| good	14.391 \| good	0.386 \| good	8.731 \| good	0.594 \| good
2026-03-09T18:00:00.000Z	49 \| good	8.749 \| good	33.699 \| good	15.514 \| good	0.36 \| good	12.008 \| good	0.547 \| good
2026-03-09T19:00:00.000Z	58 \| moderate	13.157 \| fine	59.918 \| fine	19.08 \| good	0.431 \| good	10.479 \| good	0.434 \| good
2026-03-09T20:00:00.000Z	56 \| moderate	11.839 \| good	51.113 \| good	22.009 \| good	0.922 \| good	6.785 \| good	0.346 \| good
2026-03-09T21:00:00.000Z	52 \| moderate	10.232 \| good	39.092 \| good	25.135 \| good	0.653 \| good	7.018 \| good	0.363 \| good
2026-03-09T22:00:00.000Z	44 \| good	7.591 \| good	27.237 \| good	26.515 \| good	0.425 \| good	7.926 \| good	0.383 \| good
2026-03-09T23:00:00.000Z	44 \| good	7.77 \| good	23.151 \| good	30.276 \| good	0.573 \| good	5.726 \| good	0.346 \| good
2026-03-10T00:00:00.000Z	44 \| good	7.734 \| good	25.405 \| good	33.039 \| good	0.532 \| good	5.216 \| good	0.346 \| good
2026-03-10T01:00:00.000Z	38 \| good	6.947 \| good	22.535 \| good	36.686 \| good	0.519 \| good	5.272 \| good	0.346 \| good
2026-03-10T02:00:00.000Z	38 \| good	7.458 \| good	23.292 \| good	31.68 \| good	0.364 \| good	5.693 \| good	0.347 \| good
2026-03-10T03:00:00.000Z	35 \| good	3.789 \| good	16.624 \| good	38.386 \| good	0.778 \| good	8.916 \| good	0.163 \| good
2026-03-10T04:00:00.000Z	49 \| good	8.692 \| good	34.253 \| good	29.827 \| good	0.344 \| good	4.089 \| good	0.302 \| good
2026-03-10T05:00:00.000Z	54 \| moderate	11.455 \| good	51.51 \| good	29.704 \| good	0.327 \| good	4.432 \| good	0.297 \| good
2026-03-10T06:00:00.000Z	33 \| good	3.443 \| good	14.946 \| good	36.131 \| good	0.622 \| good	10.347 \| good	0.168 \| good
2026-03-10T07:00:00.000Z	39 \| good	2.954 \| good	12.233 \| good	41.95 \| good	0.579 \| good	9.491 \| good	0.164 \| good
2026-03-10T08:00:00.000Z	39 \| good	1.313 \| good	5.61 \| good	41.849 \| good	0.537 \| good	8.634 \| good	0.16 \| good
2026-03-10T09:00:00.000Z	37 \| good	1.236 \| good	4.923 \| good	40.083 \| good	0.494 \| good	7.778 \| good	0.156 \| good
2026-03-10T10:00:00.000Z	37 \| good	1.573 \| good	6.063 \| good	40.13 \| good	0.486 \| good	6.899 \| good	0.152 \| good
2026-03-10T11:00:00.000Z	37 \| good	1.654 \| good	6.471 \| good	39.763 \| good	0.478 \| good	6.02 \| good	0.148 \| good
2026-03-10T12:00:00.000Z	35 \| good	1.279 \| good	5.214 \| good	37.953 \| good	0.47 \| good	5.142 \| good	0.143 \| good
2026-03-10T13:00:00.000Z	35 \| good	1.069 \| good	4.154 \| good	37.893 \| good	0.487 \| good	5.509 \| good	0.147 \| good
2026-03-10T14:00:00.000Z	32 \| good	0.628 \| good	2.606 \| good	35.346 \| good	0.504 \| good	5.877 \| good	0.15 \| good
2026-03-10T15:00:00.000Z	31 \| good	1.543 \| good	6.031 \| good	33.016 \| good	0.521 \| good	6.244 \| good	0.154 \| good
2026-03-10T16:00:00.000Z	35 \| good	1.834 \| good	7.768 \| good	37.737 \| good	0.582 \| good	5.12 \| good	0.149 \| good
2026-03-10T17:00:00.000Z	36 \| good	1.41 \| good	5.848 \| good	38.656 \| good	0.643 \| good	3.995 \| good	0.144 \| good
2026-03-10T18:00:00.000Z	31 \| good	1.94 \| good	8.033 \| good	33.367 \| good	0.704 \| good	2.87 \| good	0.139 \| good
2026-03-10T19:00:00.000Z	31 \| good	3.31 \| good	14.355 \| good	33.74 \| good	0.704 \| good	2.668 \| good	0.138 \| good
2026-03-10T20:00:00.000Z	32 \| good	3.762 \| good	16.485 \| good	34.794 \| good	0.703 \| good	2.466 \| good	0.137 \| good
2026-03-10T21:00:00.000Z	31 \| good	4.852 \| good	21.235 \| good	34.435 \| good	0.703 \| good	2.263 \| good	0.137 \| good
2026-03-10T22:00:00.000Z	31 \| good	5.454 \| good	23.795 \| good	33.265 \| good	0.667 \| good	2.371 \| good	0.136 \| good
2026-03-10T23:00:00.000Z	31 \| good	4.883 \| good	21.193 \| good	33.274 \| good	0.631 \| good	2.478 \| good	0.135 \| good
2026-03-11T00:00:00.000Z	31 \| good	3.451 \| good	14.894 \| good	34.183 \| good	0.595 \| good	2.585 \| good	0.135 \| good
2026-03-11T01:00:00.000Z	33 \| good	2.293 \| good	9.323 \| good	36.029 \| good	0.594 \| good	4.856 \| good	0.146 \| good
2026-03-11T02:00:00.000Z	31 \| good	4.565 \| good	20.048 \| good	33.696 \| good	0.594 \| good	7.128 \| good	0.157 \| good
2026-03-11T03:00:00.000Z	30 \| good	4.807 \| good	21.145 \| good	31.743 \| good	0.593 \| good	9.399 \| good	0.169 \| good
2026-03-11T04:00:00.000Z	33 \| good	5.629 \| good	24.56 \| good	32.083 \| good	0.626 \| good	9.72 \| good	0.181 \| good
2026-03-11T05:00:00.000Z	27 \| good	5.195 \| good	22.411 \| good	29.238 \| good	0.658 \| good	10.041 \| good	0.193 \| good
2026-03-11T06:00:00.000Z	49 \| good	9.21 \| good	11.49 \| good	32.999 \| good	0.683 \| good	10.215 \| good	0.204 \| good
2026-03-11T07:00:00.000Z	27 \| good	5.133 \| good	22.501 \| good	28.663 \| good	0.678 \| good	10.16 \| good	0.206 \| good
2026-03-11T08:00:00.000Z	30 \| good	2.512 \| good	10.466 \| good	31.963 \| good	0.666 \| good	9.957 \| good	0.208 \| good
2026-03-11T09:00:00.000Z	29 \| good	2.259 \| good	9.451 \| good	31.268 \| good	0.653 \| good	9.754 \| good	0.209 \| good
2026-03-11T10:00:00.000Z	26 \| good	3.135 \| good	13.295 \| good	27.783 \| good	0.64 \| good	9.492 \| good	0.204 \| good
2026-03-11T11:00:00.000Z	28 \| good	3.248 \| good	13.978 \| good	29.534 \| good	0.626 \| good	9.229 \| good	0.2 \| good
2026-03-11T12:00:00.000Z	49 \| good	9.171 \| good	11.266 \| good	29.845 \| good	0.601 \| good	8.798 \| good	0.194 \| good
2026-03-11T13:00:00.000Z	49 \| good	9.069 \| good	11.195 \| good	28.616 \| good	0.679 \| good	8.837 \| good	0.201 \| good
2026-03-11T14:00:00.000Z	49 \| good	9.264 \| good	11.348 \| good	27.387 \| good	0.756 \| good	8.877 \| good	0.207 \| good
2026-03-11T15:00:00.000Z	54 \| moderate	10.552 \| good	12.477 \| good	26.158 \| good	0.834 \| good	8.916 \| good	0.214 \| good
2026-03-11T16:00:00.000Z	54 \| moderate	10.927 \| good	12.702 \| good	26.857 \| good	1.198 \| good	8.985 \| good	0.206 \| good
2026-03-11T17:00:00.000Z	49 \| good	8.968 \| good	39.798 \| good	24.552 \| good	1.563 \| good	9.073 \| good	0.198 \| good
2026-03-11T18:00:00.000Z	52 \| moderate	10.445 \| good	12.388 \| good	28.256 \| good	1.926 \| good	9.122 \| good	0.19 \| good
2026-03-11T19:00:00.000Z	54 \| moderate	10.569 \| good	12.578 \| good	30.792 \| good	1.874 \| good	8.804 \| good	0.188 \| good
2026-03-11T20:00:00.000Z	54 \| moderate	11.291 \| good	13.46 \| good	33.329 \| good	1.822 \| good	8.486 \| good	0.186 \| good
2026-03-11T21:00:00.000Z	58 \| moderate	12.712 \| fine	15.151 \| good	35.866 \| good	1.77 \| good	8.167 \| good	0.185 \| good
2026-03-11T22:00:00.000Z	58 \| moderate	13.203 \| fine	15.91 \| good	37.121 \| good	1.585 \| good	8.096 \| good	0.182 \| good
2026-03-11T23:00:00.000Z	58 \| moderate	12.871 \| fine	15.688 \| good	38.376 \| good	1.4 \| good	8.024 \| good	0.18 \| good
2026-03-12T00:00:00.000Z	56 \| moderate	12.333 \| fine	15.123 \| good	39.631 \| good	1.215 \| good	7.952 \| good	0.178 \| good
2026-03-12T01:00:00.000Z	56 \| moderate	12.041 \| good	14.803 \| good	33.801 \| good	1.176 \| good	11.359 \| good	0.192 \| good
2026-03-12T02:00:00.000Z	56 \| moderate	12.35 \| fine	14.982 \| good	27.97 \| good	1.137 \| good	14.766 \| good	0.207 \| good
2026-03-12T03:00:00.000Z	58 \| moderate	13.142 \| fine	15.683 \| good	22.14 \| good	1.099 \| good	18.172 \| good	0.221 \| good
2026-03-12T04:00:00.000Z	60 \| moderate	13.843 \| fine	16.274 \| good	20.936 \| good	1.171 \| good	17.85 \| good	0.23 \| good
2026-03-12T05:00:00.000Z	60 \| moderate	14.272 \| fine	16.547 \| good	19.732 \| good	1.243 \| good	17.527 \| good	0.238 \| good

San Carlos

Empower business decisions with accurate air quality data

Real-time air quality map: Monitor AQI near San Carlos, California

0.29ppm

How accurate is California, USA air quality data?

The air quality data for California, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.

Source: Ambee Data Sources

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Frequently asked questions

How frequently does the air quality data for San Carlos, California get updated?

Air quality updates for San Carlos, California are available every hour.

What time in the past 24 hours saw the poorest air quality in San Carlos, California?

San Carlos, California experienced its worst air quality at 07:00:00, 2026-03-09.

When was air quality in San Carlos, California the best over the past 24 hours?

The best air quality in San Carlos, California was observed at 11:00:00 on 2026-03-09.

What is the air quality in San Carlos, California right now?

The air quality in San Carlos, California right now is Moderate, with an AQI of 54.

What pollutant is most frequently found in San Carlos, California?

In San Carlos, California, PM2.5 is the most frequently found pollutant.

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

When air quality in San Carlos, California is compromised, staying indoors and wearing a mask can reduce health risks.

What is the PM_2.5 concentration in San Carlos, California right now?

San Carlos, California currently has a PM_2.5 concentration of 11.455 μg/m³.

What is the current level of PM₁₀ in San Carlos, California?

San Carlos, California currently has a PM₁₀ concentration of 51.51 μg/m³.

What is the current level of carbon monoxide (CO) in San Carlos, California?

The current carbon monoxide (CO) level in San Carlos, California is 0.297 ppm.

What is the current level of sulfur dioxide (SO₂) in San Carlos, California?

The current sulfur dioxide (SO₂) concentration in San Carlos, California is 0.327 ppb.

What is the current level of ozone (O₃) in San Carlos, California?

San Carlos, California currently has an ozone (O₃) concentration of 29.704 ppm.

What is the current level of nitrogen dioxide (NO₂) in San Carlos, California?

The current level of nitrogen dioxide (NO₂) in San Carlos, California is 4.432 ppb.

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