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

South San Francisco, California currently has a PM10 concentration of 8.137 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 0.723 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 14.839 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 9.127 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 3.803 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)

7.04 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

9.09 μg/m³

155

255

425

605+

Ozone (O₃)

13.10 ppb

201

201+

Sulfur Dioxide (SO₂)

0.74 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

10.95 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.31 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

South San Francisco, California

Get Live Pollen Counts

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
2026-01-21T20:00:00.000Z	58 \| moderate	13.03 \| fine	58.651 \| fine	6.318 \| good	1.054 \| good	13.149 \| good	0.477 \| good
2026-01-21T21:00:00.000Z	58 \| moderate	12.62 \| fine	56.159 \| fine	7.097 \| good	0.893 \| good	11.054 \| good	0.441 \| good
2026-01-21T22:00:00.000Z	54 \| moderate	11.271 \| good	50.555 \| good	7.987 \| good	0.792 \| good	11.488 \| good	0.419 \| good
2026-01-21T23:00:00.000Z	54 \| moderate	10.701 \| good	48.176 \| good	9.552 \| good	0.711 \| good	12.462 \| good	0.419 \| good
2026-01-22T00:00:00.000Z	58 \| moderate	12.595 \| fine	56.061 \| fine	9.078 \| good	0.735 \| good	15.901 \| good	0.458 \| good
2026-01-22T01:00:00.000Z	60 \| moderate	14.189 \| fine	63.705 \| fine	9.472 \| good	0.719 \| good	18.233 \| good	0.512 \| good
2026-01-22T02:00:00.000Z	62 \| moderate	15.382 \| fine	68.493 \| fine	7.271 \| good	0.645 \| good	15.899 \| good	0.457 \| good
2026-01-22T03:00:00.000Z	66 \| moderate	16.876 \| fine	74.533 \| fine	8.501 \| good	0.76 \| good	17.72 \| good	0.454 \| good
2026-01-22T04:00:00.000Z	66 \| moderate	17.032 \| fine	75.605 \| fine	8.121 \| good	0.769 \| good	20.719 \| good	0.467 \| good
2026-01-22T05:00:00.000Z	67 \| moderate	17.514 \| fine	77.687 \| fine	6.9 \| good	0.743 \| good	23.935 \| good	0.532 \| good
2026-01-22T06:00:00.000Z	66 \| moderate	16.868 \| fine	75.126 \| fine	5.26 \| good	0.842 \| good	23.287 \| good	0.614 \| good
2026-01-22T07:00:00.000Z	66 \| moderate	16.718 \| fine	74.665 \| fine	4.739 \| good	0.828 \| good	22.745 \| good	0.614 \| good
2026-01-22T08:00:00.000Z	64 \| moderate	15.563 \| fine	69.607 \| fine	4.112 \| good	0.932 \| good	21.088 \| good	0.466 \| good
2026-01-22T09:00:00.000Z	62 \| moderate	15.389 \| fine	69.019 \| fine	1.973 \| good	0.833 \| good	19.936 \| good	0.479 \| good
2026-01-22T10:00:00.000Z	64 \| moderate	15.63 \| fine	69.813 \| fine	1.958 \| good	0.847 \| good	18.997 \| good	0.465 \| good
2026-01-22T11:00:00.000Z	64 \| moderate	15.868 \| fine	70.576 \| fine	2.236 \| good	0.78 \| good	20.297 \| good	0.529 \| good
2026-01-22T12:00:00.000Z	62 \| moderate	15.224 \| fine	68.223 \| fine	2.349 \| good	0.761 \| good	20.561 \| good	0.529 \| good
2026-01-22T13:00:00.000Z	62 \| moderate	15.247 \| fine	68.338 \| fine	2.079 \| good	0.765 \| good	19.785 \| good	0.514 \| good
2026-01-22T14:00:00.000Z	64 \| moderate	16.27 \| fine	71.832 \| fine	2.426 \| good	0.709 \| good	16.076 \| good	0.481 \| good
2026-01-22T15:00:00.000Z	64 \| moderate	15.856 \| fine	70.834 \| fine	2.42 \| good	0.751 \| good	17.294 \| good	0.619 \| good
2026-01-22T16:00:00.000Z	64 \| moderate	16.488 \| fine	72.804 \| fine	2.238 \| good	0.734 \| good	19.771 \| good	0.838 \| good
2026-01-22T17:00:00.000Z	64 \| moderate	16.248 \| fine	72.282 \| fine	2.373 \| good	0.82 \| good	20.412 \| good	0.854 \| good
2026-01-22T18:00:00.000Z	64 \| moderate	15.945 \| fine	70.684 \| fine	2.349 \| good	0.969 \| good	16.692 \| good	0.733 \| good
2026-01-22T19:00:00.000Z	66 \| moderate	16.887 \| fine	75.75 \| fine	4.403 \| good	0.93 \| good	16.784 \| good	0.59 \| good
2026-01-22T20:00:00.000Z	67 \| moderate	17.896 \| fine	79.356 \| fine	5.557 \| good	1.033 \| good	16.435 \| good	0.583 \| good
2026-01-22T21:00:00.000Z	69 \| moderate	19.274 \| fine	84.678 \| fine	7.094 \| good	0.946 \| good	14.868 \| good	0.583 \| good
2026-01-22T22:00:00.000Z	67 \| moderate	18.433 \| fine	81.751 \| fine	9.242 \| good	0.749 \| good	14.722 \| good	0.482 \| good
2026-01-22T23:00:00.000Z	67 \| moderate	17.638 \| fine	78.178 \| fine	11.845 \| good	0.816 \| good	13.89 \| good	0.483 \| good
2026-01-23T00:00:00.000Z	62 \| moderate	14.709 \| fine	66.188 \| fine	14.179 \| good	0.805 \| good	12.168 \| good	0.434 \| good
2026-01-23T01:00:00.000Z	58 \| moderate	13.186 \| fine	58.28 \| fine	16.692 \| good	0.681 \| good	10.726 \| good	0.342 \| good
2026-01-23T02:00:00.000Z	58 \| moderate	12.628 \| fine	56.355 \| fine	18.424 \| good	0.623 \| good	12.608 \| good	0.418 \| good
2026-01-23T03:00:00.000Z	56 \| moderate	12.276 \| fine	54.415 \| good	17.102 \| good	0.563 \| good	9.137 \| good	0.331 \| good
2026-01-23T04:00:00.000Z	54 \| moderate	10.789 \| good	48.139 \| good	17.35 \| good	0.456 \| good	9.33 \| good	0.363 \| good
2026-01-23T05:00:00.000Z	52 \| moderate	9.963 \| good	44.285 \| good	16.166 \| good	0.409 \| good	10.085 \| good	0.315 \| good
2026-01-23T06:00:00.000Z	49 \| good	9.023 \| good	40.124 \| good	13.834 \| good	0.328 \| good	9.42 \| good	0.327 \| good
2026-01-23T07:00:00.000Z	49 \| good	8.862 \| good	39.548 \| good	12.324 \| good	0.322 \| good	9.351 \| good	0.327 \| good
2026-01-23T08:00:00.000Z	52 \| moderate	9.871 \| good	44.106 \| good	11.732 \| good	0.306 \| good	9.569 \| good	0.314 \| good
2026-01-23T09:00:00.000Z	56 \| moderate	12.206 \| fine	54.184 \| good	12.492 \| good	0.441 \| good	8.42 \| good	0.34 \| good
2026-01-23T10:00:00.000Z	54 \| moderate	10.792 \| good	48.149 \| good	12.461 \| good	0.56 \| good	9.374 \| good	0.388 \| good
2026-01-23T11:00:00.000Z	52 \| moderate	10.287 \| good	46.165 \| good	11.411 \| good	0.498 \| good	8.588 \| good	0.376 \| good
2026-01-23T12:00:00.000Z	54 \| moderate	11.08 \| good	48.88 \| good	11.782 \| good	0.429 \| good	8.696 \| good	0.364 \| good
2026-01-23T13:00:00.000Z	54 \| moderate	11.068 \| good	48.88 \| good	11.523 \| good	0.782 \| good	8.488 \| good	0.36 \| good
2026-01-23T14:00:00.000Z	49 \| good	8.687 \| good	38.561 \| good	12.483 \| good	1.021 \| good	8.536 \| good	0.314 \| good
2026-01-23T15:00:00.000Z	44 \| good	8.49 \| good	37.699 \| good	12.516 \| good	0.813 \| good	11.801 \| good	0.314 \| good
2026-01-23T16:00:00.000Z	44 \| good	8.261 \| good	36.567 \| good	12.589 \| good	0.68 \| good	10.984 \| good	0.312 \| good
2026-01-23T17:00:00.000Z	49 \| good	8.814 \| good	39.17 \| good	12.898 \| good	0.656 \| good	11.36 \| good	0.32 \| good
2026-01-23T18:00:00.000Z	49 \| good	8.929 \| good	39.631 \| good	13.582 \| good	0.665 \| good	11.187 \| good	0.297 \| good
2026-01-23T19:00:00.000Z	38 \| good	7.042 \| good	9.087 \| good	13.095 \| good	0.737 \| good	10.951 \| good	0.31 \| good
2026-01-23T18:00:00.000Z	20 \| good	2.658 \| good	11.12 \| good	21.981 \| good	2.243 \| good	11.901 \| good	0.277 \| good
2026-01-23T19:00:00.000Z	22 \| good	4.077 \| good	17.827 \| good	22.077 \| good	2.193 \| good	10.087 \| good	0.255 \| good
2026-01-23T20:00:00.000Z	44 \| good	7.801 \| good	34.614 \| good	24.713 \| good	2.143 \| good	8.272 \| good	0.232 \| good
2026-01-23T21:00:00.000Z	58 \| moderate	13.015 \| fine	57.944 \| fine	25.802 \| good	2.093 \| good	6.458 \| good	0.21 \| good
2026-01-23T22:00:00.000Z	69 \| moderate	19.406 \| fine	85.223 \| fine	25.316 \| good	2.252 \| good	7.267 \| good	0.211 \| good
2026-01-23T23:00:00.000Z	75 \| moderate	21.689 \| fine	95.489 \| fine	24.138 \| good	2.41 \| good	8.075 \| good	0.212 \| good
2026-01-24T00:00:00.000Z	81 \| moderate	25.128 \| fine	109.191 \| fine	24 \| good	2.568 \| good	8.884 \| good	0.214 \| good
2026-01-24T01:00:00.000Z	58 \| moderate	12.857 \| fine	57.842 \| fine	27.151 \| good	2.458 \| good	11.508 \| good	0.235 \| good
2026-01-24T02:00:00.000Z	52 \| moderate	9.919 \| good	43.986 \| good	31.98 \| good	2.348 \| good	14.133 \| good	0.255 \| good
2026-01-24T03:00:00.000Z	52 \| moderate	10.01 \| good	44.44 \| good	31.64 \| good	2.238 \| good	16.758 \| good	0.276 \| good
2026-01-24T04:00:00.000Z	54 \| moderate	11.189 \| good	49.424 \| good	27.282 \| good	2.262 \| good	17.894 \| good	0.285 \| good
2026-01-24T05:00:00.000Z	54 \| moderate	10.748 \| good	47.841 \| good	23.201 \| good	2.285 \| good	19.03 \| good	0.294 \| good
2026-01-24T06:00:00.000Z	52 \| moderate	10.484 \| good	46.506 \| good	21.179 \| good	2.309 \| good	20.166 \| good	0.303 \| good
2026-01-24T07:00:00.000Z	49 \| good	9.19 \| good	40.497 \| good	20.651 \| good	2.134 \| good	19.194 \| good	0.3 \| good
2026-01-24T08:00:00.000Z	38 \| good	7.496 \| good	33.066 \| good	19.011 \| good	1.96 \| good	18.222 \| good	0.297 \| good
2026-01-24T09:00:00.000Z	44 \| good	8.382 \| good	36.675 \| good	17.993 \| good	1.785 \| good	17.25 \| good	0.294 \| good
2026-01-24T10:00:00.000Z	44 \| good	7.915 \| good	34.97 \| good	16.812 \| good	1.846 \| good	18.002 \| good	0.299 \| good
2026-01-24T11:00:00.000Z	44 \| good	7.646 \| good	33.479 \| good	16.086 \| good	1.907 \| good	18.753 \| good	0.303 \| good
2026-01-24T12:00:00.000Z	52 \| moderate	10.059 \| good	44.565 \| good	12.215 \| good	1.969 \| good	19.505 \| good	0.308 \| good
2026-01-24T13:00:00.000Z	56 \| moderate	12.399 \| fine	55.375 \| fine	9.939 \| good	2.213 \| good	20.729 \| good	0.302 \| good
2026-01-24T14:00:00.000Z	58 \| moderate	12.758 \| fine	57.637 \| fine	6.313 \| good	2.458 \| good	21.954 \| good	0.296 \| good
2026-01-24T15:00:00.000Z	66 \| moderate	17.075 \| fine	76.415 \| fine	4.74 \| good	2.702 \| good	23.179 \| good	0.29 \| good
2026-01-24T16:00:00.000Z	67 \| moderate	18.167 \| fine	80.722 \| fine	8.331 \| good	2.552 \| good	21.368 \| good	0.284 \| good
2026-01-24T17:00:00.000Z	69 \| moderate	18.7 \| fine	82.995 \| fine	13.229 \| good	2.401 \| good	19.557 \| good	0.278 \| good
2026-01-24T18:00:00.000Z	73 \| moderate	20.631 \| fine	90.575 \| fine	17.952 \| good	2.25 \| good	17.746 \| good	0.272 \| good
2026-01-24T19:00:00.000Z	67 \| moderate	17.613 \| fine	78.17 \| fine	19.864 \| good	1.912 \| good	13.77 \| good	0.232 \| good
2026-01-24T20:00:00.000Z	52 \| moderate	10.482 \| good	46.522 \| good	24.513 \| good	1.573 \| good	9.793 \| good	0.192 \| good
2026-01-24T21:00:00.000Z	28 \| good	4.884 \| good	21.271 \| good	30.286 \| good	1.235 \| good	5.817 \| good	0.152 \| good
2026-01-24T22:00:00.000Z	30 \| good	2.166 \| good	9.098 \| good	31.822 \| good	1.258 \| good	6.801 \| good	0.154 \| good
2026-01-24T23:00:00.000Z	31 \| good	2.186 \| good	8.899 \| good	32.779 \| good	1.282 \| good	7.785 \| good	0.156 \| good
2026-01-25T00:00:00.000Z	28 \| good	2.592 \| good	10.639 \| good	29.592 \| good	1.305 \| good	8.769 \| good	0.158 \| good
2026-01-25T01:00:00.000Z	21 \| good	2.253 \| good	9.304 \| good	22.656 \| good	1.471 \| good	15.77 \| good	0.193 \| good
2026-01-25T02:00:00.000Z	27 \| good	4.61 \| good	19.89 \| good	16.255 \| good	1.637 \| good	22.772 \| good	0.229 \| good
2026-01-25T03:00:00.000Z	33 \| good	6.354 \| good	28.007 \| good	10.314 \| good	1.803 \| good	29.773 \| good	0.264 \| good
2026-01-25T04:00:00.000Z	49 \| good	8.91 \| good	39.328 \| good	6.824 \| good	1.89 \| good	31.293 \| good	0.273 \| good
2026-01-25T05:00:00.000Z	54 \| moderate	10.862 \| good	48.05 \| good	5.922 \| good	1.977 \| good	32.813 \| good	0.283 \| good
2026-01-25T06:00:00.000Z	49 \| good	9.024 \| good	39.942 \| good	6.089 \| good	2.064 \| good	34.332 \| good	0.292 \| good
2026-01-25T07:00:00.000Z	52 \| moderate	9.729 \| good	43.289 \| good	4.045 \| good	1.819 \| good	33.12 \| good	0.287 \| good
2026-01-25T08:00:00.000Z	54 \| moderate	10.523 \| good	46.468 \| good	2.737 \| good	1.574 \| good	31.908 \| good	0.281 \| good
2026-01-25T09:00:00.000Z	56 \| moderate	12.325 \| fine	55.614 \| fine	3.106 \| good	1.329 \| good	30.696 \| good	0.276 \| good
2026-01-25T10:00:00.000Z	58 \| moderate	12.665 \| fine	57.206 \| fine	3.051 \| good	1.209 \| good	29.034 \| good	0.267 \| good
2026-01-25T11:00:00.000Z	60 \| moderate	14.127 \| fine	63.433 \| fine	6.059 \| good	1.09 \| good	27.373 \| good	0.257 \| good
2026-01-25T12:00:00.000Z	56 \| moderate	11.768 \| good	52.053 \| good	7.017 \| good	0.97 \| good	25.711 \| good	0.247 \| good
2026-01-25T13:00:00.000Z	54 \| moderate	10.684 \| good	47.368 \| good	7.271 \| good	1.05 \| good	25.14 \| good	0.243 \| good
2026-01-25T14:00:00.000Z	44 \| good	8.03 \| good	35.108 \| good	6.006 \| good	1.131 \| good	24.57 \| good	0.239 \| good
2026-01-25T15:00:00.000Z	44 \| good	8.172 \| good	35.566 \| good	3.955 \| good	1.211 \| good	23.999 \| good	0.236 \| good
2026-01-25T16:00:00.000Z	44 \| good	8.225 \| good	36.377 \| good	4.983 \| good	1.355 \| good	22.505 \| good	0.254 \| good
2026-01-25T17:00:00.000Z	54 \| moderate	10.99 \| good	48.398 \| good	7.871 \| good	1.499 \| good	21.011 \| good	0.272 \| good

South San Francisco

Empower business decisions with accurate air quality data

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

0.38ppm

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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Check live rankings of places in the USA affected by air pollution.

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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 06:00:00, 2026-01-22.

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 02:00:00 on 2026-01-23.

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 22.

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 3.803 μg/m³.

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

South San Francisco, California currently has a PM₁₀ concentration of 8.137 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 0.341 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 0.723 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 14.839 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 9.127 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-01-21T20:00:00.000Z	58 \| moderate	13.03 \| fine	58.651 \| fine	6.318 \| good	1.054 \| good	13.149 \| good	0.477 \| good
2026-01-21T21:00:00.000Z	58 \| moderate	12.62 \| fine	56.159 \| fine	7.097 \| good	0.893 \| good	11.054 \| good	0.441 \| good
2026-01-21T22:00:00.000Z	54 \| moderate	11.271 \| good	50.555 \| good	7.987 \| good	0.792 \| good	11.488 \| good	0.419 \| good
2026-01-21T23:00:00.000Z	54 \| moderate	10.701 \| good	48.176 \| good	9.552 \| good	0.711 \| good	12.462 \| good	0.419 \| good
2026-01-22T00:00:00.000Z	58 \| moderate	12.595 \| fine	56.061 \| fine	9.078 \| good	0.735 \| good	15.901 \| good	0.458 \| good
2026-01-22T01:00:00.000Z	60 \| moderate	14.189 \| fine	63.705 \| fine	9.472 \| good	0.719 \| good	18.233 \| good	0.512 \| good
2026-01-22T02:00:00.000Z	62 \| moderate	15.382 \| fine	68.493 \| fine	7.271 \| good	0.645 \| good	15.899 \| good	0.457 \| good
2026-01-22T03:00:00.000Z	66 \| moderate	16.876 \| fine	74.533 \| fine	8.501 \| good	0.76 \| good	17.72 \| good	0.454 \| good
2026-01-22T04:00:00.000Z	66 \| moderate	17.032 \| fine	75.605 \| fine	8.121 \| good	0.769 \| good	20.719 \| good	0.467 \| good
2026-01-22T05:00:00.000Z	67 \| moderate	17.514 \| fine	77.687 \| fine	6.9 \| good	0.743 \| good	23.935 \| good	0.532 \| good
2026-01-22T06:00:00.000Z	66 \| moderate	16.868 \| fine	75.126 \| fine	5.26 \| good	0.842 \| good	23.287 \| good	0.614 \| good
2026-01-22T07:00:00.000Z	66 \| moderate	16.718 \| fine	74.665 \| fine	4.739 \| good	0.828 \| good	22.745 \| good	0.614 \| good
2026-01-22T08:00:00.000Z	64 \| moderate	15.563 \| fine	69.607 \| fine	4.112 \| good	0.932 \| good	21.088 \| good	0.466 \| good
2026-01-22T09:00:00.000Z	62 \| moderate	15.389 \| fine	69.019 \| fine	1.973 \| good	0.833 \| good	19.936 \| good	0.479 \| good
2026-01-22T10:00:00.000Z	64 \| moderate	15.63 \| fine	69.813 \| fine	1.958 \| good	0.847 \| good	18.997 \| good	0.465 \| good
2026-01-22T11:00:00.000Z	64 \| moderate	15.868 \| fine	70.576 \| fine	2.236 \| good	0.78 \| good	20.297 \| good	0.529 \| good
2026-01-22T12:00:00.000Z	62 \| moderate	15.224 \| fine	68.223 \| fine	2.349 \| good	0.761 \| good	20.561 \| good	0.529 \| good
2026-01-22T13:00:00.000Z	62 \| moderate	15.247 \| fine	68.338 \| fine	2.079 \| good	0.765 \| good	19.785 \| good	0.514 \| good
2026-01-22T14:00:00.000Z	64 \| moderate	16.27 \| fine	71.832 \| fine	2.426 \| good	0.709 \| good	16.076 \| good	0.481 \| good
2026-01-22T15:00:00.000Z	64 \| moderate	15.856 \| fine	70.834 \| fine	2.42 \| good	0.751 \| good	17.294 \| good	0.619 \| good
2026-01-22T16:00:00.000Z	64 \| moderate	16.488 \| fine	72.804 \| fine	2.238 \| good	0.734 \| good	19.771 \| good	0.838 \| good
2026-01-22T17:00:00.000Z	64 \| moderate	16.248 \| fine	72.282 \| fine	2.373 \| good	0.82 \| good	20.412 \| good	0.854 \| good
2026-01-22T18:00:00.000Z	64 \| moderate	15.945 \| fine	70.684 \| fine	2.349 \| good	0.969 \| good	16.692 \| good	0.733 \| good
2026-01-22T19:00:00.000Z	66 \| moderate	16.887 \| fine	75.75 \| fine	4.403 \| good	0.93 \| good	16.784 \| good	0.59 \| good
2026-01-22T20:00:00.000Z	67 \| moderate	17.896 \| fine	79.356 \| fine	5.557 \| good	1.033 \| good	16.435 \| good	0.583 \| good
2026-01-22T21:00:00.000Z	69 \| moderate	19.274 \| fine	84.678 \| fine	7.094 \| good	0.946 \| good	14.868 \| good	0.583 \| good
2026-01-22T22:00:00.000Z	67 \| moderate	18.433 \| fine	81.751 \| fine	9.242 \| good	0.749 \| good	14.722 \| good	0.482 \| good
2026-01-22T23:00:00.000Z	67 \| moderate	17.638 \| fine	78.178 \| fine	11.845 \| good	0.816 \| good	13.89 \| good	0.483 \| good
2026-01-23T00:00:00.000Z	62 \| moderate	14.709 \| fine	66.188 \| fine	14.179 \| good	0.805 \| good	12.168 \| good	0.434 \| good
2026-01-23T01:00:00.000Z	58 \| moderate	13.186 \| fine	58.28 \| fine	16.692 \| good	0.681 \| good	10.726 \| good	0.342 \| good
2026-01-23T02:00:00.000Z	58 \| moderate	12.628 \| fine	56.355 \| fine	18.424 \| good	0.623 \| good	12.608 \| good	0.418 \| good
2026-01-23T03:00:00.000Z	56 \| moderate	12.276 \| fine	54.415 \| good	17.102 \| good	0.563 \| good	9.137 \| good	0.331 \| good
2026-01-23T04:00:00.000Z	54 \| moderate	10.789 \| good	48.139 \| good	17.35 \| good	0.456 \| good	9.33 \| good	0.363 \| good
2026-01-23T05:00:00.000Z	52 \| moderate	9.963 \| good	44.285 \| good	16.166 \| good	0.409 \| good	10.085 \| good	0.315 \| good
2026-01-23T06:00:00.000Z	49 \| good	9.023 \| good	40.124 \| good	13.834 \| good	0.328 \| good	9.42 \| good	0.327 \| good
2026-01-23T07:00:00.000Z	49 \| good	8.862 \| good	39.548 \| good	12.324 \| good	0.322 \| good	9.351 \| good	0.327 \| good
2026-01-23T08:00:00.000Z	52 \| moderate	9.871 \| good	44.106 \| good	11.732 \| good	0.306 \| good	9.569 \| good	0.314 \| good
2026-01-23T09:00:00.000Z	56 \| moderate	12.206 \| fine	54.184 \| good	12.492 \| good	0.441 \| good	8.42 \| good	0.34 \| good
2026-01-23T10:00:00.000Z	54 \| moderate	10.792 \| good	48.149 \| good	12.461 \| good	0.56 \| good	9.374 \| good	0.388 \| good
2026-01-23T11:00:00.000Z	52 \| moderate	10.287 \| good	46.165 \| good	11.411 \| good	0.498 \| good	8.588 \| good	0.376 \| good
2026-01-23T12:00:00.000Z	54 \| moderate	11.08 \| good	48.88 \| good	11.782 \| good	0.429 \| good	8.696 \| good	0.364 \| good
2026-01-23T13:00:00.000Z	54 \| moderate	11.068 \| good	48.88 \| good	11.523 \| good	0.782 \| good	8.488 \| good	0.36 \| good
2026-01-23T14:00:00.000Z	49 \| good	8.687 \| good	38.561 \| good	12.483 \| good	1.021 \| good	8.536 \| good	0.314 \| good
2026-01-23T15:00:00.000Z	44 \| good	8.49 \| good	37.699 \| good	12.516 \| good	0.813 \| good	11.801 \| good	0.314 \| good
2026-01-23T16:00:00.000Z	44 \| good	8.261 \| good	36.567 \| good	12.589 \| good	0.68 \| good	10.984 \| good	0.312 \| good
2026-01-23T17:00:00.000Z	49 \| good	8.814 \| good	39.17 \| good	12.898 \| good	0.656 \| good	11.36 \| good	0.32 \| good
2026-01-23T18:00:00.000Z	49 \| good	8.929 \| good	39.631 \| good	13.582 \| good	0.665 \| good	11.187 \| good	0.297 \| good
2026-01-23T19:00:00.000Z	38 \| good	7.042 \| good	9.087 \| good	13.095 \| good	0.737 \| good	10.951 \| good	0.31 \| good
2026-01-23T18:00:00.000Z	20 \| good	2.658 \| good	11.12 \| good	21.981 \| good	2.243 \| good	11.901 \| good	0.277 \| good
2026-01-23T19:00:00.000Z	22 \| good	4.077 \| good	17.827 \| good	22.077 \| good	2.193 \| good	10.087 \| good	0.255 \| good
2026-01-23T20:00:00.000Z	44 \| good	7.801 \| good	34.614 \| good	24.713 \| good	2.143 \| good	8.272 \| good	0.232 \| good
2026-01-23T21:00:00.000Z	58 \| moderate	13.015 \| fine	57.944 \| fine	25.802 \| good	2.093 \| good	6.458 \| good	0.21 \| good
2026-01-23T22:00:00.000Z	69 \| moderate	19.406 \| fine	85.223 \| fine	25.316 \| good	2.252 \| good	7.267 \| good	0.211 \| good
2026-01-23T23:00:00.000Z	75 \| moderate	21.689 \| fine	95.489 \| fine	24.138 \| good	2.41 \| good	8.075 \| good	0.212 \| good
2026-01-24T00:00:00.000Z	81 \| moderate	25.128 \| fine	109.191 \| fine	24 \| good	2.568 \| good	8.884 \| good	0.214 \| good
2026-01-24T01:00:00.000Z	58 \| moderate	12.857 \| fine	57.842 \| fine	27.151 \| good	2.458 \| good	11.508 \| good	0.235 \| good
2026-01-24T02:00:00.000Z	52 \| moderate	9.919 \| good	43.986 \| good	31.98 \| good	2.348 \| good	14.133 \| good	0.255 \| good
2026-01-24T03:00:00.000Z	52 \| moderate	10.01 \| good	44.44 \| good	31.64 \| good	2.238 \| good	16.758 \| good	0.276 \| good
2026-01-24T04:00:00.000Z	54 \| moderate	11.189 \| good	49.424 \| good	27.282 \| good	2.262 \| good	17.894 \| good	0.285 \| good
2026-01-24T05:00:00.000Z	54 \| moderate	10.748 \| good	47.841 \| good	23.201 \| good	2.285 \| good	19.03 \| good	0.294 \| good
2026-01-24T06:00:00.000Z	52 \| moderate	10.484 \| good	46.506 \| good	21.179 \| good	2.309 \| good	20.166 \| good	0.303 \| good
2026-01-24T07:00:00.000Z	49 \| good	9.19 \| good	40.497 \| good	20.651 \| good	2.134 \| good	19.194 \| good	0.3 \| good
2026-01-24T08:00:00.000Z	38 \| good	7.496 \| good	33.066 \| good	19.011 \| good	1.96 \| good	18.222 \| good	0.297 \| good
2026-01-24T09:00:00.000Z	44 \| good	8.382 \| good	36.675 \| good	17.993 \| good	1.785 \| good	17.25 \| good	0.294 \| good
2026-01-24T10:00:00.000Z	44 \| good	7.915 \| good	34.97 \| good	16.812 \| good	1.846 \| good	18.002 \| good	0.299 \| good
2026-01-24T11:00:00.000Z	44 \| good	7.646 \| good	33.479 \| good	16.086 \| good	1.907 \| good	18.753 \| good	0.303 \| good
2026-01-24T12:00:00.000Z	52 \| moderate	10.059 \| good	44.565 \| good	12.215 \| good	1.969 \| good	19.505 \| good	0.308 \| good
2026-01-24T13:00:00.000Z	56 \| moderate	12.399 \| fine	55.375 \| fine	9.939 \| good	2.213 \| good	20.729 \| good	0.302 \| good
2026-01-24T14:00:00.000Z	58 \| moderate	12.758 \| fine	57.637 \| fine	6.313 \| good	2.458 \| good	21.954 \| good	0.296 \| good
2026-01-24T15:00:00.000Z	66 \| moderate	17.075 \| fine	76.415 \| fine	4.74 \| good	2.702 \| good	23.179 \| good	0.29 \| good
2026-01-24T16:00:00.000Z	67 \| moderate	18.167 \| fine	80.722 \| fine	8.331 \| good	2.552 \| good	21.368 \| good	0.284 \| good
2026-01-24T17:00:00.000Z	69 \| moderate	18.7 \| fine	82.995 \| fine	13.229 \| good	2.401 \| good	19.557 \| good	0.278 \| good
2026-01-24T18:00:00.000Z	73 \| moderate	20.631 \| fine	90.575 \| fine	17.952 \| good	2.25 \| good	17.746 \| good	0.272 \| good
2026-01-24T19:00:00.000Z	67 \| moderate	17.613 \| fine	78.17 \| fine	19.864 \| good	1.912 \| good	13.77 \| good	0.232 \| good
2026-01-24T20:00:00.000Z	52 \| moderate	10.482 \| good	46.522 \| good	24.513 \| good	1.573 \| good	9.793 \| good	0.192 \| good
2026-01-24T21:00:00.000Z	28 \| good	4.884 \| good	21.271 \| good	30.286 \| good	1.235 \| good	5.817 \| good	0.152 \| good
2026-01-24T22:00:00.000Z	30 \| good	2.166 \| good	9.098 \| good	31.822 \| good	1.258 \| good	6.801 \| good	0.154 \| good
2026-01-24T23:00:00.000Z	31 \| good	2.186 \| good	8.899 \| good	32.779 \| good	1.282 \| good	7.785 \| good	0.156 \| good
2026-01-25T00:00:00.000Z	28 \| good	2.592 \| good	10.639 \| good	29.592 \| good	1.305 \| good	8.769 \| good	0.158 \| good
2026-01-25T01:00:00.000Z	21 \| good	2.253 \| good	9.304 \| good	22.656 \| good	1.471 \| good	15.77 \| good	0.193 \| good
2026-01-25T02:00:00.000Z	27 \| good	4.61 \| good	19.89 \| good	16.255 \| good	1.637 \| good	22.772 \| good	0.229 \| good
2026-01-25T03:00:00.000Z	33 \| good	6.354 \| good	28.007 \| good	10.314 \| good	1.803 \| good	29.773 \| good	0.264 \| good
2026-01-25T04:00:00.000Z	49 \| good	8.91 \| good	39.328 \| good	6.824 \| good	1.89 \| good	31.293 \| good	0.273 \| good
2026-01-25T05:00:00.000Z	54 \| moderate	10.862 \| good	48.05 \| good	5.922 \| good	1.977 \| good	32.813 \| good	0.283 \| good
2026-01-25T06:00:00.000Z	49 \| good	9.024 \| good	39.942 \| good	6.089 \| good	2.064 \| good	34.332 \| good	0.292 \| good
2026-01-25T07:00:00.000Z	52 \| moderate	9.729 \| good	43.289 \| good	4.045 \| good	1.819 \| good	33.12 \| good	0.287 \| good
2026-01-25T08:00:00.000Z	54 \| moderate	10.523 \| good	46.468 \| good	2.737 \| good	1.574 \| good	31.908 \| good	0.281 \| good
2026-01-25T09:00:00.000Z	56 \| moderate	12.325 \| fine	55.614 \| fine	3.106 \| good	1.329 \| good	30.696 \| good	0.276 \| good
2026-01-25T10:00:00.000Z	58 \| moderate	12.665 \| fine	57.206 \| fine	3.051 \| good	1.209 \| good	29.034 \| good	0.267 \| good
2026-01-25T11:00:00.000Z	60 \| moderate	14.127 \| fine	63.433 \| fine	6.059 \| good	1.09 \| good	27.373 \| good	0.257 \| good
2026-01-25T12:00:00.000Z	56 \| moderate	11.768 \| good	52.053 \| good	7.017 \| good	0.97 \| good	25.711 \| good	0.247 \| good
2026-01-25T13:00:00.000Z	54 \| moderate	10.684 \| good	47.368 \| good	7.271 \| good	1.05 \| good	25.14 \| good	0.243 \| good
2026-01-25T14:00:00.000Z	44 \| good	8.03 \| good	35.108 \| good	6.006 \| good	1.131 \| good	24.57 \| good	0.239 \| good
2026-01-25T15:00:00.000Z	44 \| good	8.172 \| good	35.566 \| good	3.955 \| good	1.211 \| good	23.999 \| good	0.236 \| good
2026-01-25T16:00:00.000Z	44 \| good	8.225 \| good	36.377 \| good	4.983 \| good	1.355 \| good	22.505 \| good	0.254 \| good
2026-01-25T17:00:00.000Z	54 \| moderate	10.99 \| good	48.398 \| good	7.871 \| good	1.499 \| good	21.011 \| good	0.272 \| good

Current air quality index in South San Francisco, California today

Common air pollutants in South San Francisco, California

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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

Empower business decisions with accurate air quality data

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

Air quality in nearby cities

San Bruno, California

Millbrae, California

Daly City, California

Pacifica, California

Hillsborough, California

Burlingame, California

How accurate is California, USA air quality data?

Air quality levels in US

Frequently asked questions

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

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

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

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

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

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

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

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

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

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

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

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

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

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

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

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

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

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