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

South San Francisco, California currently has a PM10 concentration of 29.719 μg/m3.

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

The current sulfur dioxide (SO2) concentration in South San Francisco, California is 0.408 ppb.

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

South San Francisco, California currently has an ozone (O3) concentration of 27.248 ppm.

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

The current level of nitrogen dioxide (NO2) in South San Francisco, California is 4.411 ppb.

Current air quality index in South San Francisco, California today

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

South San Francisco, California currently has a PM2.5 concentration of 9.303 μg/m3.

Stay updated with real-time air quality in South San Francisco, 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

South San Francisco, California

Last updated: ... (Local time)

Common air pollutants in South San Francisco, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

9.30 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

29.72 μg/m³

155

255

425

605+

Ozone (O₃)

27.25 ppb

201

201+

Sulfur Dioxide (SO₂)

0.41 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.41 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.38 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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South San Francisco, California

Scroll To Air Quality Map

Track live South San Francisco, California air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-03-08T14:00:00.000Z	44 \| good	8.314 \| good	27.314 \| good	12.686 \| good	0.491 \| good	11.326 \| good	0.752 \| good
2026-03-08T15:00:00.000Z	49 \| good	8.63 \| good	34.481 \| good	7.513 \| good	0.531 \| good	11.862 \| good	0.785 \| good
2026-03-08T16:00:00.000Z	49 \| good	8.626 \| good	27.141 \| good	6.656 \| good	0.552 \| good	12.495 \| good	0.709 \| good
2026-03-08T17:00:00.000Z	44 \| good	8.029 \| good	21.571 \| good	12.567 \| good	1.009 \| good	9.915 \| good	0.622 \| good
2026-03-08T18:00:00.000Z	49 \| good	9.491 \| good	44.584 \| good	16.089 \| good	1.226 \| good	12.148 \| good	0.644 \| good
2026-03-08T19:00:00.000Z	44 \| good	7.852 \| good	34.455 \| good	19.637 \| good	1.227 \| good	9.826 \| good	0.564 \| good
2026-03-08T20:00:00.000Z	38 \| good	6.631 \| good	28.553 \| good	24.583 \| good	1.174 \| good	9.016 \| good	0.528 \| good
2026-03-08T21:00:00.000Z	38 \| good	6.851 \| good	24.889 \| good	27.265 \| good	0.849 \| good	7.582 \| good	0.507 \| good
2026-03-08T22:00:00.000Z	27 \| good	5.295 \| good	24.641 \| good	26.165 \| good	0.685 \| good	7.258 \| good	0.464 \| good
2026-03-08T23:00:00.000Z	33 \| good	6.352 \| good	24.189 \| good	33.173 \| good	0.708 \| good	7.368 \| good	0.491 \| good
2026-03-09T00:00:00.000Z	38 \| good	6.62 \| good	31.643 \| good	38.121 \| good	0.436 \| good	7.055 \| good	0.491 \| good
2026-03-09T01:00:00.000Z	44 \| good	8.003 \| good	36.958 \| good	37.72 \| good	0.458 \| good	5.681 \| good	0.491 \| good
2026-03-09T02:00:00.000Z	35 \| good	4.194 \| good	18.986 \| good	38.19 \| good	0.544 \| good	4.915 \| good	0.467 \| good
2026-03-09T03:00:00.000Z	60 \| moderate	13.523 \| fine	60.717 \| fine	39.108 \| good	1.319 \| good	22.155 \| good	0.242 \| good
2026-03-09T04:00:00.000Z	44 \| good	7.62 \| good	36.38 \| good	37.911 \| good	0.439 \| good	8.094 \| good	0.526 \| good
2026-03-09T05:00:00.000Z	33 \| good	6.457 \| good	30.543 \| good	29.44 \| good	0.451 \| good	9.76 \| good	0.522 \| good
2026-03-09T06:00:00.000Z	33 \| good	6.188 \| good	27.15 \| good	25.257 \| good	0.362 \| good	11.473 \| good	0.523 \| good
2026-03-09T07:00:00.000Z	52 \| moderate	9.935 \| good	32.241 \| good	26.835 \| good	0.36 \| good	8.745 \| good	0.487 \| good
2026-03-09T08:00:00.000Z	30 \| good	5.459 \| good	32.038 \| good	26.125 \| good	0.332 \| good	4.653 \| good	0.444 \| good
2026-03-09T09:00:00.000Z	33 \| good	5.629 \| good	13.199 \| good	21.691 \| good	0.305 \| good	4.004 \| good	0.425 \| good
2026-03-09T10:00:00.000Z	21 \| good	1.613 \| good	18.635 \| good	23.079 \| good	0.274 \| good	3.79 \| good	0.458 \| good
2026-03-09T11:00:00.000Z	13 \| good	1.689 \| good	7.148 \| good	14.422 \| good	0.331 \| good	3.923 \| good	0.458 \| good
2026-03-09T12:00:00.000Z	19 \| good	2.067 \| good	5.879 \| good	21.191 \| good	0.3 \| good	3.762 \| good	0.458 \| good
2026-03-09T13:00:00.000Z	21 \| good	3.132 \| good	18.904 \| good	23.443 \| good	0.461 \| good	5.13 \| good	0.544 \| good
2026-03-09T14:00:00.000Z	19 \| good	3.127 \| good	15.14 \| good	21.038 \| good	0.461 \| good	8.092 \| good	0.598 \| good
2026-03-09T15:00:00.000Z	16 \| good	2.998 \| good	14.89 \| good	9.599 \| good	0.361 \| good	10.266 \| good	0.674 \| good
2026-03-09T16:00:00.000Z	22 \| good	4.306 \| good	13.886 \| good	7.426 \| good	0.439 \| good	11.45 \| good	0.737 \| good
2026-03-09T17:00:00.000Z	50 \| good	6.041 \| good	54.23 \| good	13.456 \| good	0.388 \| good	8.324 \| good	0.634 \| good
2026-03-09T18:00:00.000Z	49 \| good	9.383 \| good	34.745 \| good	13.116 \| good	0.362 \| good	11.951 \| good	0.588 \| good
2026-03-09T19:00:00.000Z	49 \| good	8.749 \| good	38.363 \| good	19.761 \| good	0.438 \| good	10.145 \| good	0.442 \| good
2026-03-09T20:00:00.000Z	49 \| good	9.344 \| good	34.185 \| good	21.938 \| good	0.937 \| good	7.084 \| good	0.362 \| good
2026-03-09T21:00:00.000Z	38 \| good	6.945 \| good	24.511 \| good	26.267 \| good	0.661 \| good	7.726 \| good	0.379 \| good
2026-03-09T22:00:00.000Z	44 \| good	8.383 \| good	29.145 \| good	27.303 \| good	0.434 \| good	6.675 \| good	0.403 \| good
2026-03-09T23:00:00.000Z	33 \| good	6.289 \| good	20.441 \| good	29.086 \| good	0.565 \| good	5.431 \| good	0.362 \| good
2026-03-10T00:00:00.000Z	44 \| good	7.725 \| good	28.456 \| good	32.551 \| good	0.529 \| good	5.212 \| good	0.362 \| good
2026-03-10T01:00:00.000Z	44 \| good	8.448 \| good	26.413 \| good	36.679 \| good	0.518 \| good	4.085 \| good	0.362 \| good
2026-03-10T02:00:00.000Z	49 \| good	9.245 \| good	27.499 \| good	36.061 \| good	0.388 \| good	4.612 \| good	0.362 \| good
2026-03-10T03:00:00.000Z	35 \| good	4.382 \| good	19.173 \| good	38.178 \| good	0.685 \| good	8.245 \| good	0.158 \| good
2026-03-10T04:00:00.000Z	49 \| good	8.525 \| good	29.499 \| good	30.175 \| good	0.368 \| good	4.335 \| good	0.367 \| good
2026-03-10T05:00:00.000Z	49 \| good	9.388 \| good	33.994 \| good	31.578 \| good	0.449 \| good	3.172 \| good	0.37 \| good
2026-03-10T06:00:00.000Z	56 \| moderate	12.121 \| fine	47.938 \| good	32.638 \| good	0.321 \| good	4.265 \| good	0.367 \| good
2026-03-10T07:00:00.000Z	54 \| moderate	10.942 \| good	37.717 \| good	30.666 \| good	0.301 \| good	3.701 \| good	0.367 \| good
2026-03-10T08:00:00.000Z	58 \| moderate	12.728 \| fine	56.317 \| fine	32.593 \| good	0.299 \| good	2.856 \| good	0.331 \| good
2026-03-10T09:00:00.000Z	49 \| good	9.025 \| good	34.215 \| good	32.019 \| good	0.269 \| good	3.864 \| good	0.331 \| good
2026-03-10T10:00:00.000Z	44 \| good	7.887 \| good	27.903 \| good	31.761 \| good	0.277 \| good	4.123 \| good	0.347 \| good
2026-03-10T11:00:00.000Z	52 \| moderate	9.828 \| good	37.5 \| good	30.642 \| good	0.405 \| good	4.392 \| good	0.377 \| good
2026-03-10T12:00:00.000Z	49 \| good	9.303 \| good	29.719 \| good	27.248 \| good	0.408 \| good	4.411 \| good	0.377 \| good
2026-03-10T13:00:00.000Z	49 \| good	9.303 \| good	29.719 \| good	27.248 \| good	0.408 \| good	4.411 \| good	0.377 \| good
2026-03-10T14:00:00.000Z	32 \| good	0.445 \| good	1.567 \| good	34.832 \| good	0.475 \| good	5.286 \| good	0.146 \| good
2026-03-10T15:00:00.000Z	33 \| good	1.483 \| good	5.935 \| good	35.822 \| good	0.495 \| good	5.366 \| good	0.147 \| good
2026-03-10T16:00:00.000Z	37 \| good	0.81 \| good	3.163 \| good	39.887 \| good	0.529 \| good	4.359 \| good	0.144 \| good
2026-03-10T17:00:00.000Z	37 \| good	0.838 \| good	3.147 \| good	39.654 \| good	0.563 \| good	3.352 \| good	0.14 \| good
2026-03-10T18:00:00.000Z	36 \| good	0.964 \| good	3.902 \| good	39.383 \| good	0.597 \| good	2.344 \| good	0.136 \| good
2026-03-10T19:00:00.000Z	36 \| good	0.974 \| good	3.961 \| good	39.108 \| good	0.579 \| good	2.114 \| good	0.134 \| good
2026-03-10T20:00:00.000Z	35 \| good	1.001 \| good	4.058 \| good	38.395 \| good	0.56 \| good	1.883 \| good	0.133 \| good
2026-03-10T21:00:00.000Z	35 \| good	0.963 \| good	4.01 \| good	37.79 \| good	0.542 \| good	1.652 \| good	0.132 \| good
2026-03-10T22:00:00.000Z	33 \| good	1.425 \| good	5.596 \| good	36.188 \| good	0.539 \| good	1.895 \| good	0.133 \| good
2026-03-10T23:00:00.000Z	31 \| good	1.36 \| good	5.303 \| good	34.238 \| good	0.537 \| good	2.137 \| good	0.134 \| good
2026-03-11T00:00:00.000Z	31 \| good	3.475 \| good	15.125 \| good	33.677 \| good	0.535 \| good	2.379 \| good	0.135 \| good
2026-03-11T01:00:00.000Z	32 \| good	0.957 \| good	4.099 \| good	35.023 \| good	0.547 \| good	4.548 \| good	0.145 \| good
2026-03-11T02:00:00.000Z	30 \| good	4.241 \| good	18.48 \| good	31.593 \| good	0.559 \| good	6.716 \| good	0.156 \| good
2026-03-11T03:00:00.000Z	30 \| good	4.324 \| good	18.799 \| good	31.995 \| good	0.572 \| good	8.884 \| good	0.166 \| good
2026-03-11T04:00:00.000Z	31 \| good	4.039 \| good	17.702 \| good	33.793 \| good	0.595 \| good	9.099 \| good	0.178 \| good
2026-03-11T05:00:00.000Z	29 \| good	3.923 \| good	17.095 \| good	31.44 \| good	0.617 \| good	9.314 \| good	0.189 \| good
2026-03-11T06:00:00.000Z	30 \| good	3.91 \| good	17.257 \| good	31.974 \| good	0.64 \| good	9.529 \| good	0.2 \| good
2026-03-11T07:00:00.000Z	28 \| good	4.266 \| good	18.713 \| good	30.173 \| good	0.624 \| good	9.319 \| good	0.201 \| good
2026-03-11T08:00:00.000Z	28 \| good	2.327 \| good	9.556 \| good	30.176 \| good	0.608 \| good	9.11 \| good	0.203 \| good
2026-03-11T09:00:00.000Z	25 \| good	2.796 \| good	11.729 \| good	27.158 \| good	0.592 \| good	8.9 \| good	0.204 \| good
2026-03-11T10:00:00.000Z	24 \| good	2.617 \| good	10.918 \| good	25.954 \| good	0.567 \| good	8.664 \| good	0.199 \| good
2026-03-11T11:00:00.000Z	27 \| good	4.743 \| good	20.346 \| good	28.823 \| good	0.542 \| good	8.428 \| good	0.194 \| good
2026-03-11T12:00:00.000Z	24 \| good	4.095 \| good	17.797 \| good	25.937 \| good	0.517 \| good	8.193 \| good	0.188 \| good
2026-03-11T13:00:00.000Z	24 \| good	3.133 \| good	13.317 \| good	26.141 \| good	0.606 \| good	8.245 \| good	0.194 \| good
2026-03-11T14:00:00.000Z	19 \| good	2.995 \| good	12.854 \| good	20.864 \| good	0.695 \| good	8.298 \| good	0.2 \| good
2026-03-11T15:00:00.000Z	27 \| good	5.231 \| good	22.642 \| good	19.946 \| good	0.783 \| good	8.35 \| good	0.206 \| good
2026-03-11T16:00:00.000Z	38 \| good	6.64 \| good	29.218 \| good	22.092 \| good	1.103 \| good	8.391 \| good	0.198 \| good
2026-03-11T17:00:00.000Z	49 \| good	8.571 \| good	37.683 \| good	20.968 \| good	1.422 \| good	8.432 \| good	0.191 \| good
2026-03-11T18:00:00.000Z	44 \| good	8.147 \| good	36.184 \| good	23.259 \| good	1.741 \| good	8.472 \| good	0.183 \| good
2026-03-11T19:00:00.000Z	44 \| good	7.879 \| good	34.878 \| good	24.568 \| good	1.728 \| good	8.067 \| good	0.181 \| good
2026-03-11T20:00:00.000Z	38 \| good	7.443 \| good	32.948 \| good	27.189 \| good	1.716 \| good	7.662 \| good	0.178 \| good
2026-03-11T21:00:00.000Z	33 \| good	6.242 \| good	27.351 \| good	30.188 \| good	1.703 \| good	7.256 \| good	0.175 \| good
2026-03-11T22:00:00.000Z	30 \| good	4.696 \| good	20.3 \| good	31.948 \| good	1.503 \| good	7.183 \| good	0.173 \| good
2026-03-11T23:00:00.000Z	31 \| good	4.31 \| good	18.668 \| good	33.246 \| good	1.304 \| good	7.111 \| good	0.171 \| good
2026-03-12T00:00:00.000Z	29 \| good	3.785 \| good	16.298 \| good	30.812 \| good	1.104 \| good	7.038 \| good	0.169 \| good
2026-03-12T01:00:00.000Z	28 \| good	2.218 \| good	8.894 \| good	30.344 \| good	1.066 \| good	10.661 \| good	0.185 \| good
2026-03-12T02:00:00.000Z	25 \| good	2.104 \| good	8.714 \| good	26.832 \| good	1.027 \| good	14.284 \| good	0.201 \| good
2026-03-12T03:00:00.000Z	17 \| good	3.17 \| good	13.357 \| good	18.065 \| good	0.989 \| good	17.908 \| good	0.217 \| good
2026-03-12T04:00:00.000Z	22 \| good	4.361 \| good	18.967 \| good	16.596 \| good	1.066 \| good	17.262 \| good	0.224 \| good
2026-03-12T05:00:00.000Z	22 \| good	3.837 \| good	16.909 \| good	13.738 \| good	1.144 \| good	16.616 \| good	0.231 \| good
2026-03-12T06:00:00.000Z	60 \| moderate	14.495 \| fine	16.749 \| good	20.323 \| good	1.221 \| good	15.983 \| good	0.237 \| good
2026-03-12T07:00:00.000Z	22 \| good	4.307 \| good	18.934 \| good	16.774 \| good	1.149 \| good	14.77 \| good	0.238 \| good
2026-03-12T08:00:00.000Z	22 \| good	3.629 \| good	15.881 \| good	16.542 \| good	1.078 \| good	13.569 \| good	0.238 \| good
2026-03-12T09:00:00.000Z	27 \| good	4.701 \| good	20.406 \| good	11.905 \| good	1.006 \| good	12.368 \| good	0.238 \| good
2026-03-12T10:00:00.000Z	33 \| good	5.688 \| good	24.586 \| good	8.24 \| good	0.949 \| good	11.298 \| good	0.229 \| good
2026-03-12T11:00:00.000Z	44 \| good	8.259 \| good	36.412 \| good	6.118 \| good	0.892 \| good	10.229 \| good	0.221 \| good
2026-03-12T12:00:00.000Z	56 \| moderate	11.703 \| good	13.844 \| good	22.058 \| good	0.828 \| good	9.037 \| good	0.212 \| good
2026-03-12T13:00:00.000Z	54 \| moderate	11.309 \| good	13.593 \| good	21.705 \| good	0.852 \| good	9.021 \| good	0.212 \| good

South San Francisco

Empower business decisions with accurate air quality data

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

0.31ppm

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 South San Francisco, California get updated?

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

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

South San Francisco, California experienced its worst air quality at 08:00:00, 2026-03-10.

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

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

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

The air quality in South San Francisco, California right now is Good, with an AQI of 49.

What pollutant is most frequently found in South San Francisco, California?

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

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

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

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

South San Francisco, California currently has a PM_2.5 concentration of 9.303 μg/m³.

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

South San Francisco, California currently has a PM₁₀ concentration of 29.719 μg/m³.

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

The current carbon monoxide (CO) level in South San Francisco, California is 0.377 ppm.

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

The current sulfur dioxide (SO₂) concentration in South San Francisco, California is 0.408 ppb.

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

South San Francisco, California currently has an ozone (O₃) concentration of 27.248 ppm.

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

The current level of nitrogen dioxide (NO₂) in South San Francisco, California is 4.411 ppb.

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