What is the PM10 level in California, USA at the moment?

The PM10 concentration in California, USA is 44.582 μg/m3 at the moment.

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

Currently, California, USA has a sulfur dioxide (SO2) concentration of 3.269 ppb.

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

The current ozone (O3) level in California, USA at the moment is 25.29 ppm.

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

Nitrogen dioxide (NO2) level in California, USA at the moment is 27.541 ppb.

Live air quality index in California, USA today

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

Stay updated with real-time air quality in California, USA 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

California, USA

Last updated: ... (Local time)

Major air pollutants in California, USA

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

10.10 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

44.58 μg/m³

155

255

425

605+

Ozone (O₃)

25.29 ppb

201

201+

Sulfur Dioxide (SO₂)

3.27 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

27.54 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.33 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

California, USA

Get Live Pollen Counts

California, USA

Scroll To Air Quality Map

Track live California, USA air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-10-19T05:00:00.000Z	23 \| good	4.027 \| good	7.753 \| good	24.719 \| good	0.386 \| good	22.256 \| good	0.679 \| good
2025-10-19T06:00:00.000Z	38 \| good	6.56 \| good	21.732 \| good	16.575 \| good	0.405 \| good	27.524 \| good	0.696 \| good
2025-10-19T07:00:00.000Z	33 \| good	6.029 \| good	19.215 \| good	14.515 \| good	0.405 \| good	23.97 \| good	0.688 \| good
2025-10-19T08:00:00.000Z	23 \| good	2.849 \| good	6.798 \| good	10.58 \| good	0.352 \| good	24.469 \| good	0.696 \| good
2025-10-19T09:00:00.000Z	22 \| good	4.175 \| good	15.192 \| good	10.798 \| good	0.373 \| good	21.249 \| good	0.488 \| good
2025-10-19T10:00:00.000Z	16 \| good	3.044 \| good	6.046 \| good	7.52 \| good	0.262 \| good	17.295 \| good	0.413 \| good
2025-10-19T11:00:00.000Z	14 \| good	1.929 \| good	6.988 \| good	9.141 \| good	0.271 \| good	15.313 \| good	0.348 \| good
2025-10-19T12:00:00.000Z	44 \| good	8.13 \| good	10.989 \| good	16.192 \| good	0.296 \| good	14.843 \| good	0.359 \| good
2025-10-19T13:00:00.000Z	33 \| good	5.951 \| good	11.726 \| good	11.417 \| good	0.477 \| good	13.876 \| good	0.318 \| good
2025-10-19T14:00:00.000Z	33 \| good	5.848 \| good	17.183 \| good	15.751 \| good	0.349 \| good	14.453 \| good	0.357 \| good
2025-10-19T15:00:00.000Z	22 \| good	3.693 \| good	8.347 \| good	13.45 \| good	0.338 \| good	13.613 \| good	0.216 \| good
2025-10-19T16:00:00.000Z	17 \| good	2.681 \| good	10.699 \| good	17.599 \| good	0.352 \| good	14.804 \| good	0.321 \| good
2025-10-19T17:00:00.000Z	13 \| good	1.777 \| good	12.081 \| good	13.032 \| good	0.432 \| good	13.544 \| good	0.234 \| good
2025-10-19T18:00:00.000Z	19 \| good	1.887 \| good	9.513 \| good	20.978 \| good	0.636 \| good	11.264 \| good	0.166 \| good
2025-10-19T19:00:00.000Z	29 \| good	1.264 \| good	11.177 \| good	30.804 \| good	0.762 \| good	6.562 \| good	0.166 \| good
2025-10-19T20:00:00.000Z	41 \| good	2.737 \| good	15.36 \| good	43.615 \| good	0.594 \| good	6.141 \| good	0.166 \| good
2025-10-19T21:00:00.000Z	52 \| moderate	9.558 \| good	18.467 \| good	48.452 \| good	0.687 \| good	6.462 \| good	0.2 \| good
2025-10-19T22:00:00.000Z	66 \| moderate	17.083 \| fine	31.98 \| good	49.05 \| good	0.729 \| good	5.915 \| good	0.166 \| good
2025-10-19T23:00:00.000Z	67 \| moderate	14.652 \| fine	50.622 \| good	60.193 \| fine	0.587 \| good	5.725 \| good	0.166 \| good
2025-10-20T00:00:00.000Z	67 \| moderate	11.506 \| good	21.292 \| good	60.308 \| fine	0.521 \| good	5.793 \| good	0.166 \| good
2025-10-20T01:00:00.000Z	71 \| moderate	10.687 \| good	20.43 \| good	61.099 \| fine	0.456 \| good	6.912 \| good	0.159 \| good
2025-10-20T02:00:00.000Z	60 \| moderate	13.667 \| fine	61.41 \| fine	54.838 \| good	0.455 \| good	8.296 \| good	0.172 \| good
2025-10-20T03:00:00.000Z	52 \| moderate	10.219 \| good	16.623 \| good	50.648 \| good	0.447 \| good	13.939 \| good	0.26 \| good
2025-10-20T04:00:00.000Z	38 \| good	6.935 \| good	17.574 \| good	40.285 \| good	0.43 \| good	17.635 \| good	0.4 \| good
2025-10-20T05:00:00.000Z	27 \| good	4.681 \| good	12.097 \| good	29.495 \| good	0.382 \| good	25.142 \| good	0.52 \| good
2025-10-20T06:00:00.000Z	27 \| good	5.061 \| good	18.805 \| good	22.763 \| good	0.393 \| good	24.866 \| good	0.509 \| good
2025-10-20T07:00:00.000Z	44 \| good	8.106 \| good	23.877 \| good	24.508 \| good	0.376 \| good	27.308 \| good	0.553 \| good
2025-10-20T08:00:00.000Z	44 \| good	7.84 \| good	10.046 \| good	13.51 \| good	0.366 \| good	23.613 \| good	0.431 \| good
2025-10-20T09:00:00.000Z	33 \| good	5.833 \| good	21.26 \| good	16.185 \| good	0.31 \| good	16.723 \| good	0.431 \| good
2025-10-20T10:00:00.000Z	52 \| moderate	9.78 \| good	19.669 \| good	11.701 \| good	0.302 \| good	16.529 \| good	0.354 \| good
2025-10-20T11:00:00.000Z	33 \| good	5.706 \| good	28.561 \| good	18.609 \| good	0.277 \| good	15.896 \| good	0.378 \| good
2025-10-20T12:00:00.000Z	33 \| good	5.973 \| good	9.714 \| good	17.72 \| good	0.276 \| good	14.074 \| good	0.353 \| good
2025-10-20T13:00:00.000Z	27 \| good	4.6 \| good	27.132 \| good	10.996 \| good	0.346 \| good	12.289 \| good	0.32 \| good
2025-10-20T14:00:00.000Z	25 \| good	3.602 \| good	10.243 \| good	26.729 \| good	0.322 \| good	14.389 \| good	0.32 \| good
2025-10-20T15:00:00.000Z	20 \| good	2.478 \| good	7.494 \| good	15.739 \| good	0.323 \| good	21.399 \| good	0.426 \| good
2025-10-20T16:00:00.000Z	22 \| good	4.279 \| good	9.481 \| good	21.215 \| good	0.373 \| good	19.932 \| good	0.561 \| good
2025-10-20T17:00:00.000Z	54 \| moderate	10.621 \| good	24.599 \| good	33.347 \| good	0.537 \| good	16.616 \| good	0.46 \| good
2025-10-20T18:00:00.000Z	44 \| good	7.627 \| good	29.271 \| good	20.314 \| good	0.6 \| good	12.985 \| good	0.304 \| good
2025-10-20T19:00:00.000Z	44 \| good	7.854 \| good	28.186 \| good	26.292 \| good	0.77 \| good	12.334 \| good	0.187 \| good
2025-10-20T20:00:00.000Z	54 \| moderate	10.813 \| good	24.951 \| good	39.008 \| good	0.872 \| good	9.234 \| good	0.187 \| good
2025-10-20T21:00:00.000Z	54 \| moderate	10.684 \| good	41.771 \| good	45.346 \| good	0.722 \| good	9.107 \| good	0.192 \| good
2025-10-20T22:00:00.000Z	49 \| good	9.315 \| good	28.504 \| good	47.66 \| good	0.68 \| good	10.877 \| good	0.199 \| good
2025-10-20T23:00:00.000Z	52 \| moderate	10.329 \| good	20.323 \| good	49.341 \| good	0.542 \| good	9.386 \| good	0.164 \| good
2025-10-21T00:00:00.000Z	64 \| moderate	16.437 \| fine	45.747 \| good	53.588 \| good	0.498 \| good	6.565 \| good	0.165 \| good
2025-10-21T01:00:00.000Z	61 \| moderate	8.369 \| good	23.073 \| good	57.939 \| fine	0.444 \| good	6.165 \| good	0.172 \| good
2025-10-21T02:00:00.000Z	42 \| good	5.37 \| good	17.385 \| good	44.954 \| good	0.504 \| good	10.496 \| good	0.172 \| good
2025-10-21T03:00:00.000Z	44 \| good	7.657 \| good	33.729 \| good	26.894 \| good	0.966 \| good	11.2 \| good	0.263 \| good
2025-10-21T04:00:00.000Z	39 \| good	7.159 \| good	23.833 \| good	42.362 \| good	0.517 \| good	22.412 \| good	0.386 \| good
2025-10-21T04:00:00.000Z	52 \| moderate	10.099 \| good	44.582 \| good	25.29 \| good	3.269 \| good	27.541 \| good	0.33 \| good
2025-10-21T04:00:00.000Z	49 \| good	9.323 \| good	41.069 \| good	26.743 \| good	0.854 \| good	11.35 \| good	0.256 \| good
2025-10-21T05:00:00.000Z	49 \| good	8.613 \| good	38.522 \| good	22.833 \| good	0.731 \| good	11.5 \| good	0.248 \| good
2025-10-21T06:00:00.000Z	49 \| good	9.046 \| good	39.943 \| good	17.271 \| good	0.607 \| good	11.65 \| good	0.241 \| good
2025-10-21T07:00:00.000Z	44 \| good	8.003 \| good	35.293 \| good	15.134 \| good	0.529 \| good	10.559 \| good	0.226 \| good
2025-10-21T08:00:00.000Z	38 \| good	6.913 \| good	30.508 \| good	15.083 \| good	0.452 \| good	9.469 \| good	0.211 \| good
2025-10-21T09:00:00.000Z	33 \| good	6.138 \| good	27.143 \| good	13.943 \| good	0.374 \| good	8.378 \| good	0.196 \| good
2025-10-21T10:00:00.000Z	27 \| good	5.475 \| good	23.858 \| good	13.245 \| good	0.344 \| good	7.545 \| good	0.183 \| good
2025-10-21T11:00:00.000Z	27 \| good	5.429 \| good	23.72 \| good	13.78 \| good	0.314 \| good	6.713 \| good	0.171 \| good
2025-10-21T12:00:00.000Z	33 \| good	5.693 \| good	25.008 \| good	13.355 \| good	0.284 \| good	5.88 \| good	0.159 \| good
2025-10-21T13:00:00.000Z	22 \| good	4.244 \| good	18.655 \| good	13.22 \| good	0.293 \| good	5.978 \| good	0.163 \| good
2025-10-21T14:00:00.000Z	22 \| good	3.869 \| good	16.759 \| good	14.412 \| good	0.303 \| good	6.076 \| good	0.168 \| good
2025-10-21T15:00:00.000Z	22 \| good	3.923 \| good	16.994 \| good	17.317 \| good	0.312 \| good	6.174 \| good	0.172 \| good
2025-10-21T16:00:00.000Z	33 \| good	5.812 \| good	25.6 \| good	23.842 \| good	0.446 \| good	5.194 \| good	0.171 \| good
2025-10-21T17:00:00.000Z	49 \| good	8.782 \| good	38.771 \| good	36.271 \| good	0.58 \| good	4.214 \| good	0.169 \| good
2025-10-21T18:00:00.000Z	52 \| moderate	10.189 \| good	45.458 \| good	43.798 \| good	0.714 \| good	3.234 \| good	0.167 \| good
2025-10-21T19:00:00.000Z	54 \| moderate	10.803 \| good	47.791 \| good	50.361 \| good	0.794 \| good	2.717 \| good	0.169 \| good
2025-10-21T20:00:00.000Z	54 \| moderate	9.93 \| good	44.047 \| good	56.319 \| fine	0.873 \| good	2.199 \| good	0.171 \| good
2025-10-21T21:00:00.000Z	74 \| moderate	10.01 \| good	44.308 \| good	62.29 \| fine	0.952 \| good	1.682 \| good	0.173 \| good
2025-10-21T22:00:00.000Z	90 \| moderate	10.75 \| good	47.38 \| good	66.553 \| fine	0.946 \| good	1.801 \| good	0.174 \| good
2025-10-21T23:00:00.000Z	100 \| moderate	11.667 \| good	51.776 \| good	69.723 \| fine	0.94 \| good	1.919 \| good	0.176 \| good
2025-10-22T00:00:00.000Z	84 \| moderate	10.08 \| good	44.647 \| good	64.74 \| fine	0.934 \| good	2.038 \| good	0.178 \| good
2025-10-22T01:00:00.000Z	54 \| moderate	10.57 \| good	47.139 \| good	54.573 \| good	0.926 \| good	5.578 \| good	0.21 \| good
2025-10-22T02:00:00.000Z	52 \| moderate	10.31 \| good	45.674 \| good	43.103 \| good	0.919 \| good	9.118 \| good	0.242 \| good
2025-10-22T03:00:00.000Z	49 \| good	9.475 \| good	42.095 \| good	36.12 \| good	0.911 \| good	12.658 \| good	0.274 \| good
2025-10-22T04:00:00.000Z	52 \| moderate	9.633 \| good	42.674 \| good	29.369 \| good	0.797 \| good	12.376 \| good	0.26 \| good
2025-10-22T05:00:00.000Z	44 \| good	8.388 \| good	36.869 \| good	28.005 \| good	0.683 \| good	12.093 \| good	0.246 \| good
2025-10-22T06:00:00.000Z	44 \| good	7.728 \| good	34.116 \| good	24.191 \| good	0.57 \| good	11.811 \| good	0.232 \| good
2025-10-22T07:00:00.000Z	38 \| good	7.024 \| good	30.767 \| good	23.522 \| good	0.492 \| good	10.386 \| good	0.213 \| good
2025-10-22T08:00:00.000Z	33 \| good	6.435 \| good	28.414 \| good	23.497 \| good	0.415 \| good	8.961 \| good	0.194 \| good
2025-10-22T09:00:00.000Z	33 \| good	5.635 \| good	25.225 \| good	23.353 \| good	0.338 \| good	7.535 \| good	0.175 \| good
2025-10-22T10:00:00.000Z	27 \| good	5.311 \| good	23.034 \| good	22.055 \| good	0.325 \| good	6.947 \| good	0.168 \| good
2025-10-22T11:00:00.000Z	27 \| good	5.226 \| good	22.498 \| good	20.398 \| good	0.312 \| good	6.358 \| good	0.16 \| good
2025-10-22T12:00:00.000Z	33 \| good	5.986 \| good	26.248 \| good	15.92 \| good	0.299 \| good	5.77 \| good	0.152 \| good
2025-10-22T13:00:00.000Z	38 \| good	7.32 \| good	32.05 \| good	14.815 \| good	0.311 \| good	6.093 \| good	0.16 \| good
2025-10-22T14:00:00.000Z	44 \| good	8.128 \| good	35.621 \| good	17.251 \| good	0.323 \| good	6.416 \| good	0.167 \| good
2025-10-22T15:00:00.000Z	49 \| good	9.167 \| good	40.841 \| good	19.679 \| good	0.335 \| good	6.739 \| good	0.174 \| good
2025-10-22T16:00:00.000Z	54 \| moderate	10.815 \| good	47.822 \| good	25.177 \| good	0.414 \| good	5.732 \| good	0.17 \| good
2025-10-22T17:00:00.000Z	56 \| moderate	11.994 \| good	54.022 \| good	32.816 \| good	0.493 \| good	4.725 \| good	0.167 \| good
2025-10-22T18:00:00.000Z	56 \| moderate	11.598 \| good	51.466 \| good	37.736 \| good	0.573 \| good	3.719 \| good	0.163 \| good
2025-10-22T19:00:00.000Z	58 \| moderate	13.38 \| fine	60.295 \| fine	41.505 \| good	0.672 \| good	3.202 \| good	0.162 \| good
2025-10-22T20:00:00.000Z	60 \| moderate	14.262 \| fine	63.586 \| fine	46.235 \| good	0.771 \| good	2.685 \| good	0.162 \| good
2025-10-22T21:00:00.000Z	60 \| moderate	14.409 \| fine	64.415 \| fine	50.682 \| good	0.87 \| good	2.168 \| good	0.162 \| good
2025-10-22T22:00:00.000Z	60 \| moderate	13.927 \| fine	62.59 \| fine	53.888 \| good	0.905 \| good	2.289 \| good	0.165 \| good
2025-10-22T23:00:00.000Z	60 \| moderate	13.947 \| fine	62.36 \| fine	53.195 \| good	0.94 \| good	2.411 \| good	0.169 \| good
2025-10-23T00:00:00.000Z	52 \| moderate	10.437 \| good	13.124 \| good	52.355 \| good	0.99 \| good	2.551 \| good	0.173 \| good
2025-10-23T01:00:00.000Z	52 \| moderate	9.69 \| good	43.142 \| good	42.058 \| good	0.99 \| good	4.75 \| good	0.193 \| good
2025-10-23T02:00:00.000Z	49 \| good	9.195 \| good	40.85 \| good	36.279 \| good	1.005 \| good	6.968 \| good	0.213 \| good
2025-10-23T03:00:00.000Z	52 \| moderate	9.609 \| good	43.056 \| good	34.95 \| good	1.02 \| good	9.186 \| good	0.233 \| good

California

Get reliable air quality data to drive your business

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

Air quality in cities of California, USA

City	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
East Bakersfield, California	102 Unhealthy for sensitive groups	35.71μg/m³ Moderate	156.38μg/m³ Moderate	28.83ppb Good	0.61ppb Good	10.95ppb Good	0.25ppm Good
Potomac Park, California	102 Unhealthy for sensitive groups	36.00μg/m³ Moderate	156.72μg/m³ Moderate	24.72ppb Good	0.61ppb Good	10.92ppb Good	0.25ppm Good
Bakersfield, California	99 Moderate	34.80μg/m³ Fine	150.44μg/m³ Fine	27.92ppb Good	0.65ppb Good	11.89ppb Good	0.26ppm Good
East Niles, California	97 Moderate	33.88μg/m³ Fine	147.23μg/m³ Fine	30.10ppb Good	0.60ppb Good	10.47ppb Good	0.25ppm Good
Hillcrest, California	97 Moderate	33.88μg/m³ Fine	147.23μg/m³ Fine	30.10ppb Good	0.60ppb Good	10.47ppb Good	0.25ppm Good
Oildale, California	97 Moderate	33.99μg/m³ Fine	146.92μg/m³ Fine	32.83ppb Good	0.65ppb Good	11.72ppb Good	0.26ppm Good
Greenfield city, California	96 Moderate	33.40μg/m³ Fine	144.98μg/m³ Fine	21.11ppb Good	0.65ppb Good	12.16ppb Good	0.26ppm Good
Lamont, California	94 Moderate	32.45μg/m³ Fine	140.12μg/m³ Fine	22.12ppb Good	0.61ppb Good	10.99ppb Good	0.25ppm Good
Rosedale, California	94 Moderate	31.57μg/m³ Fine	136.87μg/m³ Fine	29.22ppb Good	0.68ppb Good	12.95ppb Good	0.28ppm Good
Hanford, California	92 Moderate	31.38μg/m³ Fine	136.59μg/m³ Fine	35.51ppb Good	1.52ppb Good	16.28ppb Good	0.34ppm Good
Corcoran, California	90 Moderate	30.44μg/m³ Fine	131.90μg/m³ Fine	36.10ppb Good	1.03ppb Good	10.14ppb Good	0.29ppm Good
Tulare, California	84 Moderate	26.88μg/m³ Fine	116.58μg/m³ Fine	25.42ppb Good	1.01ppb Good	12.20ppb Good	0.30ppm Good
Arvin, California	81 Moderate	25.26μg/m³ Fine	110.43μg/m³ Fine	24.05ppb Good	0.62ppb Good	11.14ppb Good	0.25ppm Good
Shafter, California	81 Moderate	25.50μg/m³ Fine	111.19μg/m³ Fine	22.13ppb Good	0.67ppb Good	12.63ppb Good	0.28ppm Good
Lemoore, California	81 Moderate	24.57μg/m³ Fine	107.50μg/m³ Fine	40.12ppb Good	1.23ppb Good	12.18ppb Good	0.30ppm Good
Visalia, California	81 Moderate	24.65μg/m³ Fine	107.15μg/m³ Fine	21.37ppb Good	1.11ppb Good	13.64ppb Good	0.32ppm Good
Moreno Valley, California	79 Moderate	24.26μg/m³ Fine	105.08μg/m³ Fine	29.57ppb Good	5.27ppb Good	24.09ppb Good	0.37ppm Good
Farmersville, California	79 Moderate	23.57μg/m³ Fine	102.84μg/m³ Fine	24.33ppb Good	1.08ppb Good	13.58ppb Good	0.32ppm Good
Mead Valley, California	79 Moderate	23.59μg/m³ Fine	102.50μg/m³ Fine	37.16ppb Good	4.67ppb Good	24.74ppb Good	0.35ppm Good
Perris, California	79 Moderate	23.83μg/m³ Fine	104.21μg/m³ Fine	38.09ppb Good	4.60ppb Good	22.98ppb Good	0.35ppm Good
Porterville, California	79 Moderate	23.58μg/m³ Fine	102.54μg/m³ Fine	26.98ppb Good	0.68ppb Good	8.94ppb Good	0.26ppm Good
Lindsay, California	75 Moderate	22.41μg/m³ Fine	98.51μg/m³ Fine	29.22ppb Good	0.82ppb Good	10.31ppb Good	0.28ppm Good
McFarland, California	75 Moderate	22.24μg/m³ Fine	96.85μg/m³ Fine	29.57ppb Good	0.68ppb Good	13.47ppb Good	0.29ppm Good
Exeter, California	73 Moderate	21.24μg/m³ Fine	93.92μg/m³ Fine	28.06ppb Good	1.03ppb Good	12.94ppb Good	0.31ppm Good
Madera, California	73 Moderate	21.45μg/m³ Fine	94.43μg/m³ Fine	23.97ppb Good	1.13ppb Good	10.50ppb Good	0.26ppm Good
Wasco, California	73 Moderate	21.42μg/m³ Fine	93.78μg/m³ Fine	25.40ppb Good	0.66ppb Good	11.18ppb Good	0.27ppm Good
Delano, California	73 Moderate	21.18μg/m³ Fine	92.67μg/m³ Fine	33.57ppb Good	0.72ppb Good	11.84ppb Good	0.28ppm Good
Kingsburg, California	73 Moderate	20.88μg/m³ Fine	91.79μg/m³ Fine	30.25ppb Good	1.44ppb Good	15.88ppb Good	0.34ppm Good
Burbank city, California	71 Moderate	19.82μg/m³ Fine	86.77μg/m³ Fine	18.54ppb Good	6.40ppb Good	46.18ppb Good	0.43ppm Good
La CrescentaMontrose, California	71 Moderate	19.85μg/m³ Fine	87.72μg/m³ Fine	24.81ppb Good	5.88ppb Good	41.53ppb Good	0.40ppm Good
Muscoy, California	71 Moderate	19.65μg/m³ Fine	86.49μg/m³ Fine	25.45ppb Good	4.45ppb Good	25.39ppb Good	0.35ppm Good
La Canada Flintridge, California	69 Moderate	19.23μg/m³ Fine	84.85μg/m³ Fine	25.99ppb Good	6.21ppb Good	42.48ppb Good	0.41ppm Good
Pasadena, California	69 Moderate	19.35μg/m³ Fine	84.92μg/m³ Fine	24.63ppb Good	7.25ppb Good	46.07ppb Good	0.41ppm Good
Woodcrest, California	71 Moderate	19.61μg/m³ Fine	85.91μg/m³ Fine	26.84ppb Good	5.20ppb Good	27.62ppb Good	0.37ppm Good
Glendale, California	69 Moderate	18.96μg/m³ Fine	83.75μg/m³ Fine	17.66ppb Good	6.92ppb Good	48.15ppb Good	0.43ppm Good
Loma Linda, California	69 Moderate	18.82μg/m³ Fine	83.55μg/m³ Fine	26.66ppb Good	5.19ppb Good	24.27ppb Good	0.37ppm Good
Merced, California	69 Moderate	18.89μg/m³ Fine	83.01μg/m³ Fine	36.61ppb Good	0.93ppb Good	9.05ppb Good	0.24ppm Good
Selma, California	69 Moderate	18.70μg/m³ Fine	82.53μg/m³ Fine	26.81ppb Good	1.36ppb Good	15.47ppb Good	0.32ppm Good
San Bernardino, California	69 Moderate	18.89μg/m³ Fine	83.79μg/m³ Fine	27.48ppb Good	4.61ppb Good	23.87ppb Good	0.35ppm Good
South Pasadena, California	69 Moderate	18.59μg/m³ Fine	81.72μg/m³ Fine	22.96ppb Good	7.54ppb Good	47.59ppb Good	0.42ppm Good
Atwater, California	69 Moderate	18.55μg/m³ Fine	81.52μg/m³ Fine	34.35ppb Good	0.94ppb Good	9.44ppb Good	0.23ppm Good
Crestline, California	67 Moderate	18.25μg/m³ Fine	80.23μg/m³ Fine	30.18ppb Good	2.99ppb Good	19.91ppb Good	0.31ppm Good
Colton, California	67 Moderate	18.09μg/m³ Fine	80.20μg/m³ Fine	24.28ppb Good	5.08ppb Good	25.15ppb Good	0.36ppm Good
Modesto, California	67 Moderate	18.48μg/m³ Fine	81.09μg/m³ Fine	17.74ppb Good	0.97ppb Good	13.98ppb Good	0.24ppm Good
Redlands, California	69 Moderate	18.55μg/m³ Fine	82.43μg/m³ Fine	31.80ppb Good	5.20ppb Good	23.63ppb Good	0.37ppm Good
Winton, California	67 Moderate	18.28μg/m³ Fine	80.50μg/m³ Fine	33.31ppb Good	0.93ppb Good	9.51ppb Good	0.23ppm Good
Big Bear City, California	67 Moderate	17.63μg/m³ Fine	78.02μg/m³ Fine	46.53ppb Good	1.49ppb Good	7.31ppb Good	0.20ppm Good
Ceres, California	67 Moderate	17.96μg/m³ Fine	78.87μg/m³ Fine	18.02ppb Good	0.96ppb Good	12.89ppb Good	0.24ppm Good
San Fernando, California	67 Moderate	17.88μg/m³ Fine	78.97μg/m³ Fine	25.42ppb Good	5.29ppb Good	39.68ppb Good	0.41ppm Good
San Marino, California	67 Moderate	17.84μg/m³ Fine	79.44μg/m³ Fine	25.03ppb Good	7.88ppb Good	47.78ppb Good	0.42ppm Good

City	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
No results found

0.16ppm

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

Air quality levels in US

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

View Polluted Cities

Check live rankings of places in the USA with the cleanest air.

View Clean Cities

Frequently asked questions

How often is air quality information updated for California, USA?

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

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

In the past 24 hours, the air quality in California, USA was at its worst at 12:00:00 on 2025-10-21.

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

In the last 24 hours, the best air quality in California, USA was observed at 03:00:00 on 2025-10-20.

What is the AQI in California, USA right now?

As of now, the AQI in California, USA is 52, indicating Moderate conditions.

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

California, USA air has the highest levels of PM2.5.

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

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

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

PM_2.5 levels in California, USA are currently 10.099 μg/m³.

What is the PM₁₀ level in California, USA at the moment?

The PM₁₀ concentration in California, USA is 44.582 μg/m³ at the moment.

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

The current carbon monoxide (CO) concentration in California, USA is 0.33 ppm.

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

Currently, California, USA has a sulfur dioxide (SO₂) concentration of 3.269 ppb.

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

The current ozone (O₃) level in California, USA at the moment is 25.29 ppm.

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

Nitrogen dioxide (NO₂) level in California, USA at the moment is 27.541 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-10-19T05:00:00.000Z	23 \| good	4.027 \| good	7.753 \| good	24.719 \| good	0.386 \| good	22.256 \| good	0.679 \| good
2025-10-19T06:00:00.000Z	38 \| good	6.56 \| good	21.732 \| good	16.575 \| good	0.405 \| good	27.524 \| good	0.696 \| good
2025-10-19T07:00:00.000Z	33 \| good	6.029 \| good	19.215 \| good	14.515 \| good	0.405 \| good	23.97 \| good	0.688 \| good
2025-10-19T08:00:00.000Z	23 \| good	2.849 \| good	6.798 \| good	10.58 \| good	0.352 \| good	24.469 \| good	0.696 \| good
2025-10-19T09:00:00.000Z	22 \| good	4.175 \| good	15.192 \| good	10.798 \| good	0.373 \| good	21.249 \| good	0.488 \| good
2025-10-19T10:00:00.000Z	16 \| good	3.044 \| good	6.046 \| good	7.52 \| good	0.262 \| good	17.295 \| good	0.413 \| good
2025-10-19T11:00:00.000Z	14 \| good	1.929 \| good	6.988 \| good	9.141 \| good	0.271 \| good	15.313 \| good	0.348 \| good
2025-10-19T12:00:00.000Z	44 \| good	8.13 \| good	10.989 \| good	16.192 \| good	0.296 \| good	14.843 \| good	0.359 \| good
2025-10-19T13:00:00.000Z	33 \| good	5.951 \| good	11.726 \| good	11.417 \| good	0.477 \| good	13.876 \| good	0.318 \| good
2025-10-19T14:00:00.000Z	33 \| good	5.848 \| good	17.183 \| good	15.751 \| good	0.349 \| good	14.453 \| good	0.357 \| good
2025-10-19T15:00:00.000Z	22 \| good	3.693 \| good	8.347 \| good	13.45 \| good	0.338 \| good	13.613 \| good	0.216 \| good
2025-10-19T16:00:00.000Z	17 \| good	2.681 \| good	10.699 \| good	17.599 \| good	0.352 \| good	14.804 \| good	0.321 \| good
2025-10-19T17:00:00.000Z	13 \| good	1.777 \| good	12.081 \| good	13.032 \| good	0.432 \| good	13.544 \| good	0.234 \| good
2025-10-19T18:00:00.000Z	19 \| good	1.887 \| good	9.513 \| good	20.978 \| good	0.636 \| good	11.264 \| good	0.166 \| good
2025-10-19T19:00:00.000Z	29 \| good	1.264 \| good	11.177 \| good	30.804 \| good	0.762 \| good	6.562 \| good	0.166 \| good
2025-10-19T20:00:00.000Z	41 \| good	2.737 \| good	15.36 \| good	43.615 \| good	0.594 \| good	6.141 \| good	0.166 \| good
2025-10-19T21:00:00.000Z	52 \| moderate	9.558 \| good	18.467 \| good	48.452 \| good	0.687 \| good	6.462 \| good	0.2 \| good
2025-10-19T22:00:00.000Z	66 \| moderate	17.083 \| fine	31.98 \| good	49.05 \| good	0.729 \| good	5.915 \| good	0.166 \| good
2025-10-19T23:00:00.000Z	67 \| moderate	14.652 \| fine	50.622 \| good	60.193 \| fine	0.587 \| good	5.725 \| good	0.166 \| good
2025-10-20T00:00:00.000Z	67 \| moderate	11.506 \| good	21.292 \| good	60.308 \| fine	0.521 \| good	5.793 \| good	0.166 \| good
2025-10-20T01:00:00.000Z	71 \| moderate	10.687 \| good	20.43 \| good	61.099 \| fine	0.456 \| good	6.912 \| good	0.159 \| good
2025-10-20T02:00:00.000Z	60 \| moderate	13.667 \| fine	61.41 \| fine	54.838 \| good	0.455 \| good	8.296 \| good	0.172 \| good
2025-10-20T03:00:00.000Z	52 \| moderate	10.219 \| good	16.623 \| good	50.648 \| good	0.447 \| good	13.939 \| good	0.26 \| good
2025-10-20T04:00:00.000Z	38 \| good	6.935 \| good	17.574 \| good	40.285 \| good	0.43 \| good	17.635 \| good	0.4 \| good
2025-10-20T05:00:00.000Z	27 \| good	4.681 \| good	12.097 \| good	29.495 \| good	0.382 \| good	25.142 \| good	0.52 \| good
2025-10-20T06:00:00.000Z	27 \| good	5.061 \| good	18.805 \| good	22.763 \| good	0.393 \| good	24.866 \| good	0.509 \| good
2025-10-20T07:00:00.000Z	44 \| good	8.106 \| good	23.877 \| good	24.508 \| good	0.376 \| good	27.308 \| good	0.553 \| good
2025-10-20T08:00:00.000Z	44 \| good	7.84 \| good	10.046 \| good	13.51 \| good	0.366 \| good	23.613 \| good	0.431 \| good
2025-10-20T09:00:00.000Z	33 \| good	5.833 \| good	21.26 \| good	16.185 \| good	0.31 \| good	16.723 \| good	0.431 \| good
2025-10-20T10:00:00.000Z	52 \| moderate	9.78 \| good	19.669 \| good	11.701 \| good	0.302 \| good	16.529 \| good	0.354 \| good
2025-10-20T11:00:00.000Z	33 \| good	5.706 \| good	28.561 \| good	18.609 \| good	0.277 \| good	15.896 \| good	0.378 \| good
2025-10-20T12:00:00.000Z	33 \| good	5.973 \| good	9.714 \| good	17.72 \| good	0.276 \| good	14.074 \| good	0.353 \| good
2025-10-20T13:00:00.000Z	27 \| good	4.6 \| good	27.132 \| good	10.996 \| good	0.346 \| good	12.289 \| good	0.32 \| good
2025-10-20T14:00:00.000Z	25 \| good	3.602 \| good	10.243 \| good	26.729 \| good	0.322 \| good	14.389 \| good	0.32 \| good
2025-10-20T15:00:00.000Z	20 \| good	2.478 \| good	7.494 \| good	15.739 \| good	0.323 \| good	21.399 \| good	0.426 \| good
2025-10-20T16:00:00.000Z	22 \| good	4.279 \| good	9.481 \| good	21.215 \| good	0.373 \| good	19.932 \| good	0.561 \| good
2025-10-20T17:00:00.000Z	54 \| moderate	10.621 \| good	24.599 \| good	33.347 \| good	0.537 \| good	16.616 \| good	0.46 \| good
2025-10-20T18:00:00.000Z	44 \| good	7.627 \| good	29.271 \| good	20.314 \| good	0.6 \| good	12.985 \| good	0.304 \| good
2025-10-20T19:00:00.000Z	44 \| good	7.854 \| good	28.186 \| good	26.292 \| good	0.77 \| good	12.334 \| good	0.187 \| good
2025-10-20T20:00:00.000Z	54 \| moderate	10.813 \| good	24.951 \| good	39.008 \| good	0.872 \| good	9.234 \| good	0.187 \| good
2025-10-20T21:00:00.000Z	54 \| moderate	10.684 \| good	41.771 \| good	45.346 \| good	0.722 \| good	9.107 \| good	0.192 \| good
2025-10-20T22:00:00.000Z	49 \| good	9.315 \| good	28.504 \| good	47.66 \| good	0.68 \| good	10.877 \| good	0.199 \| good
2025-10-20T23:00:00.000Z	52 \| moderate	10.329 \| good	20.323 \| good	49.341 \| good	0.542 \| good	9.386 \| good	0.164 \| good
2025-10-21T00:00:00.000Z	64 \| moderate	16.437 \| fine	45.747 \| good	53.588 \| good	0.498 \| good	6.565 \| good	0.165 \| good
2025-10-21T01:00:00.000Z	61 \| moderate	8.369 \| good	23.073 \| good	57.939 \| fine	0.444 \| good	6.165 \| good	0.172 \| good
2025-10-21T02:00:00.000Z	42 \| good	5.37 \| good	17.385 \| good	44.954 \| good	0.504 \| good	10.496 \| good	0.172 \| good
2025-10-21T03:00:00.000Z	44 \| good	7.657 \| good	33.729 \| good	26.894 \| good	0.966 \| good	11.2 \| good	0.263 \| good
2025-10-21T04:00:00.000Z	39 \| good	7.159 \| good	23.833 \| good	42.362 \| good	0.517 \| good	22.412 \| good	0.386 \| good
2025-10-21T04:00:00.000Z	52 \| moderate	10.099 \| good	44.582 \| good	25.29 \| good	3.269 \| good	27.541 \| good	0.33 \| good
2025-10-21T04:00:00.000Z	49 \| good	9.323 \| good	41.069 \| good	26.743 \| good	0.854 \| good	11.35 \| good	0.256 \| good
2025-10-21T05:00:00.000Z	49 \| good	8.613 \| good	38.522 \| good	22.833 \| good	0.731 \| good	11.5 \| good	0.248 \| good
2025-10-21T06:00:00.000Z	49 \| good	9.046 \| good	39.943 \| good	17.271 \| good	0.607 \| good	11.65 \| good	0.241 \| good
2025-10-21T07:00:00.000Z	44 \| good	8.003 \| good	35.293 \| good	15.134 \| good	0.529 \| good	10.559 \| good	0.226 \| good
2025-10-21T08:00:00.000Z	38 \| good	6.913 \| good	30.508 \| good	15.083 \| good	0.452 \| good	9.469 \| good	0.211 \| good
2025-10-21T09:00:00.000Z	33 \| good	6.138 \| good	27.143 \| good	13.943 \| good	0.374 \| good	8.378 \| good	0.196 \| good
2025-10-21T10:00:00.000Z	27 \| good	5.475 \| good	23.858 \| good	13.245 \| good	0.344 \| good	7.545 \| good	0.183 \| good
2025-10-21T11:00:00.000Z	27 \| good	5.429 \| good	23.72 \| good	13.78 \| good	0.314 \| good	6.713 \| good	0.171 \| good
2025-10-21T12:00:00.000Z	33 \| good	5.693 \| good	25.008 \| good	13.355 \| good	0.284 \| good	5.88 \| good	0.159 \| good
2025-10-21T13:00:00.000Z	22 \| good	4.244 \| good	18.655 \| good	13.22 \| good	0.293 \| good	5.978 \| good	0.163 \| good
2025-10-21T14:00:00.000Z	22 \| good	3.869 \| good	16.759 \| good	14.412 \| good	0.303 \| good	6.076 \| good	0.168 \| good
2025-10-21T15:00:00.000Z	22 \| good	3.923 \| good	16.994 \| good	17.317 \| good	0.312 \| good	6.174 \| good	0.172 \| good
2025-10-21T16:00:00.000Z	33 \| good	5.812 \| good	25.6 \| good	23.842 \| good	0.446 \| good	5.194 \| good	0.171 \| good
2025-10-21T17:00:00.000Z	49 \| good	8.782 \| good	38.771 \| good	36.271 \| good	0.58 \| good	4.214 \| good	0.169 \| good
2025-10-21T18:00:00.000Z	52 \| moderate	10.189 \| good	45.458 \| good	43.798 \| good	0.714 \| good	3.234 \| good	0.167 \| good
2025-10-21T19:00:00.000Z	54 \| moderate	10.803 \| good	47.791 \| good	50.361 \| good	0.794 \| good	2.717 \| good	0.169 \| good
2025-10-21T20:00:00.000Z	54 \| moderate	9.93 \| good	44.047 \| good	56.319 \| fine	0.873 \| good	2.199 \| good	0.171 \| good
2025-10-21T21:00:00.000Z	74 \| moderate	10.01 \| good	44.308 \| good	62.29 \| fine	0.952 \| good	1.682 \| good	0.173 \| good
2025-10-21T22:00:00.000Z	90 \| moderate	10.75 \| good	47.38 \| good	66.553 \| fine	0.946 \| good	1.801 \| good	0.174 \| good
2025-10-21T23:00:00.000Z	100 \| moderate	11.667 \| good	51.776 \| good	69.723 \| fine	0.94 \| good	1.919 \| good	0.176 \| good
2025-10-22T00:00:00.000Z	84 \| moderate	10.08 \| good	44.647 \| good	64.74 \| fine	0.934 \| good	2.038 \| good	0.178 \| good
2025-10-22T01:00:00.000Z	54 \| moderate	10.57 \| good	47.139 \| good	54.573 \| good	0.926 \| good	5.578 \| good	0.21 \| good
2025-10-22T02:00:00.000Z	52 \| moderate	10.31 \| good	45.674 \| good	43.103 \| good	0.919 \| good	9.118 \| good	0.242 \| good
2025-10-22T03:00:00.000Z	49 \| good	9.475 \| good	42.095 \| good	36.12 \| good	0.911 \| good	12.658 \| good	0.274 \| good
2025-10-22T04:00:00.000Z	52 \| moderate	9.633 \| good	42.674 \| good	29.369 \| good	0.797 \| good	12.376 \| good	0.26 \| good
2025-10-22T05:00:00.000Z	44 \| good	8.388 \| good	36.869 \| good	28.005 \| good	0.683 \| good	12.093 \| good	0.246 \| good
2025-10-22T06:00:00.000Z	44 \| good	7.728 \| good	34.116 \| good	24.191 \| good	0.57 \| good	11.811 \| good	0.232 \| good
2025-10-22T07:00:00.000Z	38 \| good	7.024 \| good	30.767 \| good	23.522 \| good	0.492 \| good	10.386 \| good	0.213 \| good
2025-10-22T08:00:00.000Z	33 \| good	6.435 \| good	28.414 \| good	23.497 \| good	0.415 \| good	8.961 \| good	0.194 \| good
2025-10-22T09:00:00.000Z	33 \| good	5.635 \| good	25.225 \| good	23.353 \| good	0.338 \| good	7.535 \| good	0.175 \| good
2025-10-22T10:00:00.000Z	27 \| good	5.311 \| good	23.034 \| good	22.055 \| good	0.325 \| good	6.947 \| good	0.168 \| good
2025-10-22T11:00:00.000Z	27 \| good	5.226 \| good	22.498 \| good	20.398 \| good	0.312 \| good	6.358 \| good	0.16 \| good
2025-10-22T12:00:00.000Z	33 \| good	5.986 \| good	26.248 \| good	15.92 \| good	0.299 \| good	5.77 \| good	0.152 \| good
2025-10-22T13:00:00.000Z	38 \| good	7.32 \| good	32.05 \| good	14.815 \| good	0.311 \| good	6.093 \| good	0.16 \| good
2025-10-22T14:00:00.000Z	44 \| good	8.128 \| good	35.621 \| good	17.251 \| good	0.323 \| good	6.416 \| good	0.167 \| good
2025-10-22T15:00:00.000Z	49 \| good	9.167 \| good	40.841 \| good	19.679 \| good	0.335 \| good	6.739 \| good	0.174 \| good
2025-10-22T16:00:00.000Z	54 \| moderate	10.815 \| good	47.822 \| good	25.177 \| good	0.414 \| good	5.732 \| good	0.17 \| good
2025-10-22T17:00:00.000Z	56 \| moderate	11.994 \| good	54.022 \| good	32.816 \| good	0.493 \| good	4.725 \| good	0.167 \| good
2025-10-22T18:00:00.000Z	56 \| moderate	11.598 \| good	51.466 \| good	37.736 \| good	0.573 \| good	3.719 \| good	0.163 \| good
2025-10-22T19:00:00.000Z	58 \| moderate	13.38 \| fine	60.295 \| fine	41.505 \| good	0.672 \| good	3.202 \| good	0.162 \| good
2025-10-22T20:00:00.000Z	60 \| moderate	14.262 \| fine	63.586 \| fine	46.235 \| good	0.771 \| good	2.685 \| good	0.162 \| good
2025-10-22T21:00:00.000Z	60 \| moderate	14.409 \| fine	64.415 \| fine	50.682 \| good	0.87 \| good	2.168 \| good	0.162 \| good
2025-10-22T22:00:00.000Z	60 \| moderate	13.927 \| fine	62.59 \| fine	53.888 \| good	0.905 \| good	2.289 \| good	0.165 \| good
2025-10-22T23:00:00.000Z	60 \| moderate	13.947 \| fine	62.36 \| fine	53.195 \| good	0.94 \| good	2.411 \| good	0.169 \| good
2025-10-23T00:00:00.000Z	52 \| moderate	10.437 \| good	13.124 \| good	52.355 \| good	0.99 \| good	2.551 \| good	0.173 \| good
2025-10-23T01:00:00.000Z	52 \| moderate	9.69 \| good	43.142 \| good	42.058 \| good	0.99 \| good	4.75 \| good	0.193 \| good
2025-10-23T02:00:00.000Z	49 \| good	9.195 \| good	40.85 \| good	36.279 \| good	1.005 \| good	6.968 \| good	0.213 \| good
2025-10-23T03:00:00.000Z	52 \| moderate	9.609 \| good	43.056 \| good	34.95 \| good	1.02 \| good	9.186 \| good	0.233 \| good

Live air quality index in California, USA today

Major air pollutants in California, USA

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live California, USA air quality forecast and history

Get reliable air quality data to drive your business

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

Air quality in cities of California, USA

Air quality in nearby states

Nevada, USA

Oregon, USA

Utah, USA

Arizona, USA

Idaho, USA

Nebraska, USA

How accurate is California, USA air quality data?

Air quality levels in US

Frequently asked questions

How often is air quality information updated for California, USA?

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

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

What is the AQI in California, USA right now?

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

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

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

What is the PM10 level in California, USA at the moment?

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

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

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

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

What is the PM₁₀ level in California, USA at the moment?

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

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

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