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

The PM10 concentration in California, USA is 17.969 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 0.581 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 48.891 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 4.352 ppb.

Live air quality index in California, USA today

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

PM2.5 levels in California, USA are currently 4.138 μg/m3.

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)

Good

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)

4.14 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

17.97 μg/m³

155

255

425

605+

Ozone (O₃)

48.89 ppb

201

201+

Sulfur Dioxide (SO₂)

0.58 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.35 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.26 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

High

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
2026-04-22T03:00:00.000Z	40 \| good	1.279 \| good	5.447 \| good	42.792 \| good	0.38 \| good	2.629 \| good	0.12 \| good
2026-04-22T04:00:00.000Z	35 \| good	1.341 \| good	6.817 \| good	37.929 \| good	0.443 \| good	3.543 \| good	0.12 \| good
2026-04-22T05:00:00.000Z	33 \| good	2.545 \| good	8.419 \| good	36.071 \| good	0.387 \| good	4.24 \| good	0.131 \| good
2026-04-22T06:00:00.000Z	31 \| good	2.893 \| good	9.698 \| good	33.845 \| good	0.378 \| good	3.351 \| good	0.126 \| good
2026-04-22T07:00:00.000Z	31 \| good	2.034 \| good	6.403 \| good	33.866 \| good	0.378 \| good	4.542 \| good	0.126 \| good
2026-04-22T08:00:00.000Z	29 \| good	1.738 \| good	4.418 \| good	30.921 \| good	0.387 \| good	3.798 \| good	0.131 \| good
2026-04-22T09:00:00.000Z	27 \| good	1.312 \| good	6.439 \| good	28.629 \| good	0.388 \| good	2.614 \| good	0.117 \| good
2026-04-22T10:00:00.000Z	23 \| good	0.747 \| good	11.26 \| good	25.216 \| good	0.361 \| good	2.541 \| good	0.117 \| good
2026-04-22T11:00:00.000Z	20 \| good	1.348 \| good	4.996 \| good	21.754 \| good	0.37 \| good	3.892 \| good	0.12 \| good
2026-04-22T12:00:00.000Z	28 \| good	2.915 \| good	6.88 \| good	30.459 \| good	0.381 \| good	3.583 \| good	0.126 \| good
2026-04-22T13:00:00.000Z	25 \| good	1.754 \| good	6.381 \| good	27.354 \| good	0.388 \| good	3.942 \| good	0.126 \| good
2026-04-22T14:00:00.000Z	25 \| good	2.018 \| good	5.802 \| good	27.301 \| good	0.426 \| good	5.054 \| good	0.12 \| good
2026-04-22T15:00:00.000Z	16 \| good	2.484 \| good	11.134 \| good	16.883 \| good	0.474 \| good	10.676 \| good	0.203 \| good
2026-04-22T16:00:00.000Z	17 \| good	3.088 \| good	11.725 \| good	18.041 \| good	0.492 \| good	10.371 \| good	0.283 \| good
2026-04-22T17:00:00.000Z	24 \| good	2.787 \| good	11.652 \| good	26.464 \| good	0.601 \| good	5.488 \| good	0.205 \| good
2026-04-22T18:00:00.000Z	30 \| good	3.829 \| good	10.098 \| good	31.579 \| good	0.575 \| good	3.816 \| good	0.126 \| good
2026-04-22T19:00:00.000Z	32 \| good	4.295 \| good	15.941 \| good	35.426 \| good	0.477 \| good	4.302 \| good	0.117 \| good
2026-04-22T20:00:00.000Z	36 \| good	1.877 \| good	5.694 \| good	39.342 \| good	0.453 \| good	4.492 \| good	0.111 \| good
2026-04-22T21:00:00.000Z	40 \| good	2.114 \| good	7.104 \| good	43.384 \| good	0.452 \| good	3.812 \| good	0.111 \| good
2026-04-22T22:00:00.000Z	41 \| good	1.743 \| good	11.032 \| good	44.005 \| good	0.338 \| good	3.57 \| good	0.111 \| good
2026-04-22T23:00:00.000Z	41 \| good	2.269 \| good	10.574 \| good	44.177 \| good	0.339 \| good	4.116 \| good	0.146 \| good
2026-04-23T00:00:00.000Z	42 \| good	2.143 \| good	7.698 \| good	45.07 \| good	0.387 \| good	4.602 \| good	0.137 \| good
2026-04-23T01:00:00.000Z	40 \| good	1.933 \| good	8.623 \| good	43.225 \| good	0.497 \| good	4.185 \| good	0.117 \| good
2026-04-23T02:00:00.000Z	41 \| good	1.722 \| good	7.22 \| good	44.287 \| good	0.524 \| good	3.757 \| good	0.117 \| good
2026-04-23T03:00:00.000Z	42 \| good	1.937 \| good	8.04 \| good	44.76 \| good	0.442 \| good	3.864 \| good	0.106 \| good
2026-04-23T04:00:00.000Z	40 \| good	1.887 \| good	8.181 \| good	42.751 \| good	0.425 \| good	2.28 \| good	0.158 \| good
2026-04-23T05:00:00.000Z	36 \| good	1.799 \| good	12.501 \| good	39.127 \| good	0.48 \| good	2.653 \| good	0.158 \| good
2026-04-23T06:00:00.000Z	36 \| good	1.721 \| good	10.112 \| good	39.312 \| good	0.415 \| good	3.992 \| good	0.12 \| good
2026-04-23T07:00:00.000Z	30 \| good	2.276 \| good	9.776 \| good	32.422 \| good	0.425 \| good	3.795 \| good	0.131 \| good
2026-04-23T08:00:00.000Z	30 \| good	2.556 \| good	8.539 \| good	31.644 \| good	0.415 \| good	3.733 \| good	0.12 \| good
2026-04-23T09:00:00.000Z	24 \| good	3.014 \| good	9.136 \| good	26.31 \| good	0.415 \| good	4.012 \| good	0.126 \| good
2026-04-23T10:00:00.000Z	26 \| good	2.423 \| good	8.619 \| good	27.508 \| good	0.425 \| good	4.857 \| good	0.122 \| good
2026-04-23T11:00:00.000Z	23 \| good	3.304 \| good	13.612 \| good	25.211 \| good	0.435 \| good	5.182 \| good	0.122 \| good
2026-04-23T12:00:00.000Z	25 \| good	3.701 \| good	18.815 \| good	26.562 \| good	0.416 \| good	6.195 \| good	0.131 \| good
2026-04-23T13:00:00.000Z	21 \| good	1.944 \| good	14.325 \| good	23.355 \| good	0.433 \| good	6.129 \| good	0.137 \| good
2026-04-23T14:00:00.000Z	17 \| good	1.865 \| good	15.746 \| good	18.244 \| good	0.475 \| good	6.181 \| good	0.149 \| good
2026-04-23T15:00:00.000Z	22 \| good	3.593 \| good	8.651 \| good	22.096 \| good	0.421 \| good	7.277 \| good	0.188 \| good
2026-04-23T16:00:00.000Z	27 \| good	5.201 \| good	16.033 \| good	27.937 \| good	0.449 \| good	6.145 \| good	0.198 \| good
2026-04-23T17:00:00.000Z	27 \| good	5.303 \| good	22.131 \| good	24.634 \| good	0.474 \| good	5.005 \| good	0.221 \| good
2026-04-23T18:00:00.000Z	28 \| good	4.961 \| good	25.652 \| good	30.378 \| good	0.479 \| good	5.587 \| good	0.205 \| good
2026-04-23T19:00:00.000Z	27 \| good	5.364 \| good	20.218 \| good	26.83 \| good	0.716 \| good	6.423 \| good	0.211 \| good
2026-04-23T20:00:00.000Z	31 \| good	4.298 \| good	17.096 \| good	33.623 \| good	0.59 \| good	5.53 \| good	0.171 \| good
2026-04-23T21:00:00.000Z	36 \| good	5.441 \| good	22.862 \| good	38.782 \| good	0.549 \| good	4.583 \| good	0.164 \| good
2026-04-23T22:00:00.000Z	37 \| good	4.876 \| good	18.296 \| good	40.217 \| good	0.596 \| good	5.291 \| good	0.164 \| good
2026-04-23T23:00:00.000Z	42 \| good	3.642 \| good	13.848 \| good	45.088 \| good	0.561 \| good	3.981 \| good	0.117 \| good
2026-04-24T00:00:00.000Z	44 \| good	3.744 \| good	12.092 \| good	47.502 \| good	0.58 \| good	4.621 \| good	0.111 \| good
2026-04-24T01:00:00.000Z	45 \| good	3.827 \| good	15.823 \| good	48.618 \| good	0.572 \| good	4.449 \| good	0.111 \| good
2026-04-24T02:00:00.000Z	45 \| good	4.138 \| good	17.969 \| good	48.891 \| good	0.581 \| good	4.352 \| good	0.255 \| good
2026-04-24T02:00:00.000Z	44 \| good	2.956 \| good	12.167 \| good	46.796 \| good	0.31 \| good	3.325 \| good	0.159 \| good
2026-04-24T03:00:00.000Z	42 \| good	4.658 \| good	20.5 \| good	44.513 \| good	0.316 \| good	4.669 \| good	0.169 \| good
2026-04-24T04:00:00.000Z	39 \| good	3.96 \| good	17.233 \| good	41.594 \| good	0.325 \| good	5.519 \| good	0.176 \| good
2026-04-24T05:00:00.000Z	37 \| good	2.708 \| good	11.093 \| good	39.687 \| good	0.333 \| good	6.369 \| good	0.184 \| good
2026-04-24T06:00:00.000Z	35 \| good	2.392 \| good	9.786 \| good	37.818 \| good	0.342 \| good	7.218 \| good	0.191 \| good
2026-04-24T07:00:00.000Z	35 \| good	2.566 \| good	10.718 \| good	37.955 \| good	0.317 \| good	7.246 \| good	0.189 \| good
2026-04-24T08:00:00.000Z	35 \| good	2.293 \| good	9.554 \| good	38.077 \| good	0.292 \| good	7.273 \| good	0.188 \| good
2026-04-24T09:00:00.000Z	33 \| good	2.452 \| good	9.872 \| good	36.463 \| good	0.268 \| good	7.3 \| good	0.187 \| good
2026-04-24T10:00:00.000Z	32 \| good	2.322 \| good	9.589 \| good	35.084 \| good	0.248 \| good	6.995 \| good	0.182 \| good
2026-04-24T11:00:00.000Z	31 \| good	1.85 \| good	7.682 \| good	33.548 \| good	0.229 \| good	6.69 \| good	0.176 \| good
2026-04-24T12:00:00.000Z	28 \| good	2.621 \| good	10.704 \| good	29.931 \| good	0.209 \| good	6.385 \| good	0.171 \| good
2026-04-24T13:00:00.000Z	24 \| good	4.015 \| good	17.395 \| good	25.869 \| good	0.223 \| good	5.691 \| good	0.175 \| good
2026-04-24T14:00:00.000Z	22 \| good	4.145 \| good	18.052 \| good	23.549 \| good	0.237 \| good	4.996 \| good	0.178 \| good
2026-04-24T15:00:00.000Z	31 \| good	4.846 \| good	21.194 \| good	32.982 \| good	0.252 \| good	4.301 \| good	0.181 \| good
2026-04-24T16:00:00.000Z	38 \| good	5.547 \| good	24.111 \| good	41.398 \| good	0.399 \| good	3.55 \| good	0.175 \| good
2026-04-24T17:00:00.000Z	43 \| good	5.543 \| good	24.094 \| good	46.414 \| good	0.546 \| good	2.798 \| good	0.169 \| good
2026-04-24T18:00:00.000Z	46 \| good	5.203 \| good	22.596 \| good	50.073 \| good	0.694 \| good	2.047 \| good	0.163 \| good
2026-04-24T19:00:00.000Z	49 \| good	5.429 \| good	23.517 \| good	53.147 \| good	0.634 \| good	1.588 \| good	0.158 \| good
2026-04-24T20:00:00.000Z	54 \| moderate	5.317 \| good	22.718 \| good	56.125 \| fine	0.575 \| good	1.128 \| good	0.153 \| good
2026-04-24T21:00:00.000Z	61 \| moderate	4.908 \| good	21.082 \| good	57.965 \| fine	0.515 \| good	0.669 \| good	0.149 \| good
2026-04-24T22:00:00.000Z	61 \| moderate	4.967 \| good	21.543 \| good	58.24 \| fine	0.48 \| good	0.668 \| good	0.146 \| good
2026-04-24T23:00:00.000Z	64 \| moderate	5.001 \| good	21.604 \| good	59.108 \| fine	0.444 \| good	0.667 \| good	0.143 \| good
2026-04-25T00:00:00.000Z	71 \| moderate	5.141 \| good	22.37 \| good	60.973 \| fine	0.409 \| good	0.666 \| good	0.14 \| good
2026-04-25T01:00:00.000Z	67 \| moderate	5.261 \| good	22.599 \| good	59.669 \| fine	0.411 \| good	2.123 \| good	0.151 \| good
2026-04-25T02:00:00.000Z	54 \| moderate	4.594 \| good	20.2 \| good	56.189 \| fine	0.413 \| good	3.579 \| good	0.161 \| good
2026-04-25T03:00:00.000Z	58 \| moderate	5.64 \| good	24.365 \| good	57.415 \| fine	0.416 \| good	5.036 \| good	0.172 \| good
2026-04-25T04:00:00.000Z	58 \| moderate	3.802 \| good	16.722 \| good	56.969 \| fine	0.4 \| good	5.798 \| good	0.178 \| good
2026-04-25T05:00:00.000Z	47 \| good	3.876 \| good	16.779 \| good	51.252 \| good	0.385 \| good	6.56 \| good	0.183 \| good
2026-04-25T06:00:00.000Z	42 \| good	3.995 \| good	17.551 \| good	45.175 \| good	0.37 \| good	7.321 \| good	0.188 \| good
2026-04-25T07:00:00.000Z	39 \| good	5.082 \| good	22.101 \| good	42.227 \| good	0.337 \| good	6.616 \| good	0.182 \| good
2026-04-25T08:00:00.000Z	44 \| good	8.374 \| good	36.888 \| good	39.474 \| good	0.305 \| good	5.911 \| good	0.175 \| good
2026-04-25T09:00:00.000Z	44 \| good	7.699 \| good	34.062 \| good	36.719 \| good	0.273 \| good	5.206 \| good	0.168 \| good
2026-04-25T10:00:00.000Z	38 \| good	6.947 \| good	30.659 \| good	33.877 \| good	0.266 \| good	5.089 \| good	0.163 \| good
2026-04-25T11:00:00.000Z	44 \| good	7.568 \| good	33.467 \| good	29.653 \| good	0.259 \| good	4.971 \| good	0.158 \| good
2026-04-25T12:00:00.000Z	49 \| good	8.952 \| good	39.625 \| good	21.412 \| good	0.252 \| good	4.854 \| good	0.154 \| good
2026-04-25T13:00:00.000Z	54 \| moderate	11.247 \| good	49.492 \| good	18.554 \| good	0.263 \| good	4.698 \| good	0.156 \| good
2026-04-25T14:00:00.000Z	56 \| moderate	11.786 \| good	53.102 \| good	20.947 \| good	0.274 \| good	4.542 \| good	0.158 \| good
2026-04-25T15:00:00.000Z	56 \| moderate	12.328 \| fine	55.597 \| fine	24.166 \| good	0.286 \| good	4.387 \| good	0.16 \| good
2026-04-25T16:00:00.000Z	58 \| moderate	13.378 \| fine	60.065 \| fine	28.997 \| good	0.404 \| good	3.633 \| good	0.159 \| good
2026-04-25T17:00:00.000Z	62 \| moderate	14.696 \| fine	65.439 \| fine	31.241 \| good	0.522 \| good	2.878 \| good	0.157 \| good
2026-04-25T18:00:00.000Z	62 \| moderate	15.471 \| fine	69.267 \| fine	34.233 \| good	0.641 \| good	2.124 \| good	0.155 \| good
2026-04-25T19:00:00.000Z	64 \| moderate	15.577 \| fine	69.316 \| fine	37.031 \| good	0.633 \| good	1.758 \| good	0.154 \| good
2026-04-25T20:00:00.000Z	64 \| moderate	15.865 \| fine	70.426 \| fine	36.683 \| good	0.625 \| good	1.391 \| good	0.152 \| good
2026-04-25T21:00:00.000Z	62 \| moderate	14.869 \| fine	66.683 \| fine	36.425 \| good	0.617 \| good	1.024 \| good	0.15 \| good
2026-04-25T22:00:00.000Z	60 \| moderate	13.747 \| fine	61.455 \| fine	38.436 \| good	0.541 \| good	1.062 \| good	0.146 \| good
2026-04-25T23:00:00.000Z	56 \| moderate	12.02 \| good	53.644 \| good	40.03 \| good	0.465 \| good	1.099 \| good	0.143 \| good
2026-04-26T00:00:00.000Z	56 \| moderate	11.639 \| good	32.115 \| good	51.782 \| good	0.388 \| good	1.135 \| good	0.139 \| good
2026-04-26T01:00:00.000Z	56 \| moderate	11.762 \| good	52.645 \| good	38.926 \| good	0.333 \| good	1.852 \| good	0.142 \| 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
Crestline, California	97 Moderate	6.40μg/m³ Good	29.00μg/m³ Good	68.92ppb Fine	0.63ppb Good	3.12ppb Good	0.27ppm Good
Lake Arrowhead, California	87 Moderate	6.29μg/m³ Good	28.12μg/m³ Good	65.73ppb Fine	0.63ppb Good	3.50ppb Good	0.27ppm Good
Jurupa Valley, California	84 Moderate	11.46μg/m³ Good	38.87μg/m³ Good	64.81ppb Fine	0.80ppb Good	4.51ppb Good	0.27ppm Good
Temescal Valley, California	80 Moderate	8.29μg/m³ Good	35.50μg/m³ Good	64.28ppb Fine	0.64ppb Good	3.87ppb Good	0.29ppm Good
Glendora, California	80 Moderate	5.43μg/m³ Good	38.88μg/m³ Good	63.86ppb Fine	0.82ppb Good	7.76ppb Good	0.30ppm Good
Muscoy, California	77 Moderate	6.99μg/m³ Good	32.51μg/m³ Good	63.42ppb Fine	0.74ppb Good	6.33ppb Good	0.26ppm Good
Riverside, California	80 Moderate	8.25μg/m³ Good	34.60μg/m³ Good	63.54ppb Fine	0.48ppb Good	4.20ppb Good	0.22ppm Good
Highland, California	77 Moderate	7.23μg/m³ Good	32.40μg/m³ Good	63.31ppb Fine	0.66ppb Good	5.09ppb Good	0.27ppm Good
Grand Terrace, California	77 Moderate	7.80μg/m³ Good	33.79μg/m³ Good	62.85ppb Fine	0.64ppb Good	4.82ppb Good	0.25ppm Good
Redlands, California	77 Moderate	7.61μg/m³ Good	33.87μg/m³ Good	63.05ppb Fine	0.65ppb Good	4.71ppb Good	0.27ppm Good
Azusa, California	77 Moderate	5.83μg/m³ Good	37.04μg/m³ Good	62.69ppb Fine	0.80ppb Good	7.39ppb Good	0.29ppm Good
Citrus, California	77 Moderate	5.83μg/m³ Good	37.04μg/m³ Good	62.69ppb Fine	0.80ppb Good	7.39ppb Good	0.29ppm Good
Bloomington, California	77 Moderate	8.02μg/m³ Good	35.16μg/m³ Good	62.74ppb Fine	0.72ppb Good	6.28ppb Good	0.25ppm Good
Colton, California	77 Moderate	7.25μg/m³ Good	32.58μg/m³ Good	62.79ppb Fine	0.65ppb Good	5.21ppb Good	0.26ppm Good
Loma Linda, California	77 Moderate	7.26μg/m³ Good	32.54μg/m³ Good	62.73ppb Fine	0.65ppb Good	5.32ppb Good	0.26ppm Good
Covina, California	74 Moderate	5.99μg/m³ Good	36.24μg/m³ Good	62.20ppb Fine	0.79ppb Good	7.31ppb Good	0.29ppm Good
Woodcrest, California	74 Moderate	8.18μg/m³ Good	33.41μg/m³ Good	62.49ppb Fine	0.55ppb Good	5.09ppb Good	0.24ppm Good
Mead Valley, California	74 Moderate	7.89μg/m³ Good	34.16μg/m³ Good	62.04ppb Fine	0.64ppb Good	3.64ppb Good	0.28ppm Good
San Bernardino, California	74 Moderate	7.20μg/m³ Good	32.02μg/m³ Good	62.11ppb Fine	0.65ppb Good	5.92ppb Good	0.26ppm Good
Yucaipa, California	74 Moderate	6.34μg/m³ Good	28.29μg/m³ Good	61.95ppb Fine	0.63ppb Good	3.88ppb Good	0.27ppm Good
Banning, California	74 Moderate	3.47μg/m³ Good	15.61μg/m³ Good	61.62ppb Fine	0.59ppb Good	1.74ppb Good	0.28ppm Good
Calimesa, California	74 Moderate	6.13μg/m³ Good	27.38μg/m³ Good	61.83ppb Fine	0.63ppb Good	3.75ppb Good	0.27ppm Good
Fontana, California	74 Moderate	7.37μg/m³ Good	35.80μg/m³ Good	61.79ppb Fine	1.04ppb Good	8.13ppb Good	0.27ppm Good
San Dimas, California	74 Moderate	5.90μg/m³ Good	37.32μg/m³ Good	61.70ppb Fine	0.81ppb Good	9.79ppb Good	0.30ppm Good
Vincent, California	74 Moderate	6.12μg/m³ Good	35.79μg/m³ Good	61.83ppb Fine	0.78ppb Good	7.24ppb Good	0.29ppm Good
Moreno Valley, California	71 Moderate	7.74μg/m³ Good	33.07μg/m³ Good	61.33ppb Fine	0.65ppb Good	4.21ppb Good	0.27ppm Good
Alpine, California	71 Moderate	3.80μg/m³ Good	13.01μg/m³ Good	60.98ppb Fine	0.55ppb Good	2.46ppb Good	0.29ppm Good
Beaumont, California	67 Moderate	4.94μg/m³ Good	27.64μg/m³ Good	60.50ppb Fine	0.61ppb Good	2.17ppb Good	0.28ppm Good
Burbank city, California	67 Moderate	6.06μg/m³ Good	25.67μg/m³ Good	60.17ppb Fine	0.65ppb Good	3.61ppb Good	0.21ppm Good
La CrescentaMontrose, California	67 Moderate	5.53μg/m³ Good	25.10μg/m³ Good	60.19ppb Fine	0.63ppb Good	6.45ppb Good	0.21ppm Good
Valle Vista, California	67 Moderate	4.59μg/m³ Good	23.47μg/m³ Good	59.91ppb Fine	0.60ppb Good	1.82ppb Good	0.28ppm Good
East Hemet, California	67 Moderate	4.59μg/m³ Good	23.47μg/m³ Good	59.91ppb Fine	0.60ppb Good	1.82ppb Good	0.28ppm Good
Laguna Niguel, California	67 Moderate	3.75μg/m³ Good	15.46μg/m³ Good	59.74ppb Fine	0.63ppb Good	3.49ppb Good	0.33ppm Good
Norco, California	67 Moderate	9.11μg/m³ Good	36.34μg/m³ Good	59.81ppb Fine	0.80ppb Good	11.44ppb Good	0.27ppm Good
Pasadena, California	67 Moderate	6.85μg/m³ Good	24.73μg/m³ Good	59.76ppb Fine	0.69ppb Good	2.97ppb Good	0.21ppm Good
West Covina, California	67 Moderate	6.79μg/m³ Good	33.22μg/m³ Good	59.81ppb Fine	0.74ppb Good	6.96ppb Good	0.29ppm Good
Palm Springs, California	67 Moderate	3.54μg/m³ Good	15.74μg/m³ Good	59.64ppb Fine	0.56ppb Good	3.35ppb Good	0.28ppm Good
Perris, California	67 Moderate	7.49μg/m³ Good	33.38μg/m³ Good	59.61ppb Fine	0.63ppb Good	1.97ppb Good	0.28ppm Good
San Marino, California	67 Moderate	6.87μg/m³ Good	25.02μg/m³ Good	59.60ppb Fine	0.69ppb Good	3.13ppb Good	0.21ppm Good
San Jacinto, California	67 Moderate	5.46μg/m³ Good	27.31μg/m³ Good	59.68ppb Fine	0.60ppb Good	2.09ppb Good	0.28ppm Good
Walnut, California	67 Moderate	6.56μg/m³ Good	33.60μg/m³ Good	59.53ppb Fine	0.75ppb Good	6.77ppb Good	0.33ppm Good
Big Bear City, California	64 Moderate	3.50μg/m³ Good	16.02μg/m³ Good	59.15ppb Fine	0.59ppb Good	1.94ppb Good	0.28ppm Good
Cathedral City, California	64 Moderate	3.35μg/m³ Good	15.58μg/m³ Good	59.44ppb Fine	0.55ppb Good	3.45ppb Good	0.28ppm Good
Rancho Mirage, California	64 Moderate	3.08μg/m³ Good	15.33μg/m³ Good	59.23ppb Fine	0.54ppb Good	3.52ppb Good	0.28ppm Good
South Pasadena, California	64 Moderate	6.85μg/m³ Good	24.92μg/m³ Good	59.33ppb Fine	0.69ppb Good	3.23ppb Good	0.21ppm Good
West Puente Valley, California	64 Moderate	7.00μg/m³ Good	32.48μg/m³ Good	59.14ppb Fine	0.73ppb Good	6.94ppb Good	0.29ppm Good
Valinda, California	64 Moderate	7.00μg/m³ Good	32.48μg/m³ Good	59.14ppb Fine	0.73ppb Good	6.94ppb Good	0.29ppm Good
Alhambra, California	64 Moderate	6.94μg/m³ Good	26.02μg/m³ Good	58.88ppb Fine	0.69ppb Good	3.83ppb Good	0.21ppm Good
Arcadia, California	64 Moderate	7.08μg/m³ Good	29.89μg/m³ Good	58.89ppb Fine	0.70ppb Good	5.44ppb Good	0.23ppm Good
East San Gabriel, California	64 Moderate	7.06μg/m³ Good	26.78μg/m³ Good	59.02ppb Fine	0.69ppb Good	4.14ppb Good	0.22ppm Good

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

0.26ppm

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 2026-04-24.

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 02:00:00 on 2026-04-23.

What is the AQI in California, USA right now?

As of now, the AQI in California, USA is 45, indicating Good conditions.

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

California, USA air has the highest levels of O3.

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 4.138 μg/m³.

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

The PM₁₀ concentration in California, USA is 17.969 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 0.255 ppm.

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

Currently, California, USA has a sulfur dioxide (SO₂) concentration of 0.581 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 48.891 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 4.352 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-04-22T03:00:00.000Z	40 \| good	1.279 \| good	5.447 \| good	42.792 \| good	0.38 \| good	2.629 \| good	0.12 \| good
2026-04-22T04:00:00.000Z	35 \| good	1.341 \| good	6.817 \| good	37.929 \| good	0.443 \| good	3.543 \| good	0.12 \| good
2026-04-22T05:00:00.000Z	33 \| good	2.545 \| good	8.419 \| good	36.071 \| good	0.387 \| good	4.24 \| good	0.131 \| good
2026-04-22T06:00:00.000Z	31 \| good	2.893 \| good	9.698 \| good	33.845 \| good	0.378 \| good	3.351 \| good	0.126 \| good
2026-04-22T07:00:00.000Z	31 \| good	2.034 \| good	6.403 \| good	33.866 \| good	0.378 \| good	4.542 \| good	0.126 \| good
2026-04-22T08:00:00.000Z	29 \| good	1.738 \| good	4.418 \| good	30.921 \| good	0.387 \| good	3.798 \| good	0.131 \| good
2026-04-22T09:00:00.000Z	27 \| good	1.312 \| good	6.439 \| good	28.629 \| good	0.388 \| good	2.614 \| good	0.117 \| good
2026-04-22T10:00:00.000Z	23 \| good	0.747 \| good	11.26 \| good	25.216 \| good	0.361 \| good	2.541 \| good	0.117 \| good
2026-04-22T11:00:00.000Z	20 \| good	1.348 \| good	4.996 \| good	21.754 \| good	0.37 \| good	3.892 \| good	0.12 \| good
2026-04-22T12:00:00.000Z	28 \| good	2.915 \| good	6.88 \| good	30.459 \| good	0.381 \| good	3.583 \| good	0.126 \| good
2026-04-22T13:00:00.000Z	25 \| good	1.754 \| good	6.381 \| good	27.354 \| good	0.388 \| good	3.942 \| good	0.126 \| good
2026-04-22T14:00:00.000Z	25 \| good	2.018 \| good	5.802 \| good	27.301 \| good	0.426 \| good	5.054 \| good	0.12 \| good
2026-04-22T15:00:00.000Z	16 \| good	2.484 \| good	11.134 \| good	16.883 \| good	0.474 \| good	10.676 \| good	0.203 \| good
2026-04-22T16:00:00.000Z	17 \| good	3.088 \| good	11.725 \| good	18.041 \| good	0.492 \| good	10.371 \| good	0.283 \| good
2026-04-22T17:00:00.000Z	24 \| good	2.787 \| good	11.652 \| good	26.464 \| good	0.601 \| good	5.488 \| good	0.205 \| good
2026-04-22T18:00:00.000Z	30 \| good	3.829 \| good	10.098 \| good	31.579 \| good	0.575 \| good	3.816 \| good	0.126 \| good
2026-04-22T19:00:00.000Z	32 \| good	4.295 \| good	15.941 \| good	35.426 \| good	0.477 \| good	4.302 \| good	0.117 \| good
2026-04-22T20:00:00.000Z	36 \| good	1.877 \| good	5.694 \| good	39.342 \| good	0.453 \| good	4.492 \| good	0.111 \| good
2026-04-22T21:00:00.000Z	40 \| good	2.114 \| good	7.104 \| good	43.384 \| good	0.452 \| good	3.812 \| good	0.111 \| good
2026-04-22T22:00:00.000Z	41 \| good	1.743 \| good	11.032 \| good	44.005 \| good	0.338 \| good	3.57 \| good	0.111 \| good
2026-04-22T23:00:00.000Z	41 \| good	2.269 \| good	10.574 \| good	44.177 \| good	0.339 \| good	4.116 \| good	0.146 \| good
2026-04-23T00:00:00.000Z	42 \| good	2.143 \| good	7.698 \| good	45.07 \| good	0.387 \| good	4.602 \| good	0.137 \| good
2026-04-23T01:00:00.000Z	40 \| good	1.933 \| good	8.623 \| good	43.225 \| good	0.497 \| good	4.185 \| good	0.117 \| good
2026-04-23T02:00:00.000Z	41 \| good	1.722 \| good	7.22 \| good	44.287 \| good	0.524 \| good	3.757 \| good	0.117 \| good
2026-04-23T03:00:00.000Z	42 \| good	1.937 \| good	8.04 \| good	44.76 \| good	0.442 \| good	3.864 \| good	0.106 \| good
2026-04-23T04:00:00.000Z	40 \| good	1.887 \| good	8.181 \| good	42.751 \| good	0.425 \| good	2.28 \| good	0.158 \| good
2026-04-23T05:00:00.000Z	36 \| good	1.799 \| good	12.501 \| good	39.127 \| good	0.48 \| good	2.653 \| good	0.158 \| good
2026-04-23T06:00:00.000Z	36 \| good	1.721 \| good	10.112 \| good	39.312 \| good	0.415 \| good	3.992 \| good	0.12 \| good
2026-04-23T07:00:00.000Z	30 \| good	2.276 \| good	9.776 \| good	32.422 \| good	0.425 \| good	3.795 \| good	0.131 \| good
2026-04-23T08:00:00.000Z	30 \| good	2.556 \| good	8.539 \| good	31.644 \| good	0.415 \| good	3.733 \| good	0.12 \| good
2026-04-23T09:00:00.000Z	24 \| good	3.014 \| good	9.136 \| good	26.31 \| good	0.415 \| good	4.012 \| good	0.126 \| good
2026-04-23T10:00:00.000Z	26 \| good	2.423 \| good	8.619 \| good	27.508 \| good	0.425 \| good	4.857 \| good	0.122 \| good
2026-04-23T11:00:00.000Z	23 \| good	3.304 \| good	13.612 \| good	25.211 \| good	0.435 \| good	5.182 \| good	0.122 \| good
2026-04-23T12:00:00.000Z	25 \| good	3.701 \| good	18.815 \| good	26.562 \| good	0.416 \| good	6.195 \| good	0.131 \| good
2026-04-23T13:00:00.000Z	21 \| good	1.944 \| good	14.325 \| good	23.355 \| good	0.433 \| good	6.129 \| good	0.137 \| good
2026-04-23T14:00:00.000Z	17 \| good	1.865 \| good	15.746 \| good	18.244 \| good	0.475 \| good	6.181 \| good	0.149 \| good
2026-04-23T15:00:00.000Z	22 \| good	3.593 \| good	8.651 \| good	22.096 \| good	0.421 \| good	7.277 \| good	0.188 \| good
2026-04-23T16:00:00.000Z	27 \| good	5.201 \| good	16.033 \| good	27.937 \| good	0.449 \| good	6.145 \| good	0.198 \| good
2026-04-23T17:00:00.000Z	27 \| good	5.303 \| good	22.131 \| good	24.634 \| good	0.474 \| good	5.005 \| good	0.221 \| good
2026-04-23T18:00:00.000Z	28 \| good	4.961 \| good	25.652 \| good	30.378 \| good	0.479 \| good	5.587 \| good	0.205 \| good
2026-04-23T19:00:00.000Z	27 \| good	5.364 \| good	20.218 \| good	26.83 \| good	0.716 \| good	6.423 \| good	0.211 \| good
2026-04-23T20:00:00.000Z	31 \| good	4.298 \| good	17.096 \| good	33.623 \| good	0.59 \| good	5.53 \| good	0.171 \| good
2026-04-23T21:00:00.000Z	36 \| good	5.441 \| good	22.862 \| good	38.782 \| good	0.549 \| good	4.583 \| good	0.164 \| good
2026-04-23T22:00:00.000Z	37 \| good	4.876 \| good	18.296 \| good	40.217 \| good	0.596 \| good	5.291 \| good	0.164 \| good
2026-04-23T23:00:00.000Z	42 \| good	3.642 \| good	13.848 \| good	45.088 \| good	0.561 \| good	3.981 \| good	0.117 \| good
2026-04-24T00:00:00.000Z	44 \| good	3.744 \| good	12.092 \| good	47.502 \| good	0.58 \| good	4.621 \| good	0.111 \| good
2026-04-24T01:00:00.000Z	45 \| good	3.827 \| good	15.823 \| good	48.618 \| good	0.572 \| good	4.449 \| good	0.111 \| good
2026-04-24T02:00:00.000Z	45 \| good	4.138 \| good	17.969 \| good	48.891 \| good	0.581 \| good	4.352 \| good	0.255 \| good
2026-04-24T02:00:00.000Z	44 \| good	2.956 \| good	12.167 \| good	46.796 \| good	0.31 \| good	3.325 \| good	0.159 \| good
2026-04-24T03:00:00.000Z	42 \| good	4.658 \| good	20.5 \| good	44.513 \| good	0.316 \| good	4.669 \| good	0.169 \| good
2026-04-24T04:00:00.000Z	39 \| good	3.96 \| good	17.233 \| good	41.594 \| good	0.325 \| good	5.519 \| good	0.176 \| good
2026-04-24T05:00:00.000Z	37 \| good	2.708 \| good	11.093 \| good	39.687 \| good	0.333 \| good	6.369 \| good	0.184 \| good
2026-04-24T06:00:00.000Z	35 \| good	2.392 \| good	9.786 \| good	37.818 \| good	0.342 \| good	7.218 \| good	0.191 \| good
2026-04-24T07:00:00.000Z	35 \| good	2.566 \| good	10.718 \| good	37.955 \| good	0.317 \| good	7.246 \| good	0.189 \| good
2026-04-24T08:00:00.000Z	35 \| good	2.293 \| good	9.554 \| good	38.077 \| good	0.292 \| good	7.273 \| good	0.188 \| good
2026-04-24T09:00:00.000Z	33 \| good	2.452 \| good	9.872 \| good	36.463 \| good	0.268 \| good	7.3 \| good	0.187 \| good
2026-04-24T10:00:00.000Z	32 \| good	2.322 \| good	9.589 \| good	35.084 \| good	0.248 \| good	6.995 \| good	0.182 \| good
2026-04-24T11:00:00.000Z	31 \| good	1.85 \| good	7.682 \| good	33.548 \| good	0.229 \| good	6.69 \| good	0.176 \| good
2026-04-24T12:00:00.000Z	28 \| good	2.621 \| good	10.704 \| good	29.931 \| good	0.209 \| good	6.385 \| good	0.171 \| good
2026-04-24T13:00:00.000Z	24 \| good	4.015 \| good	17.395 \| good	25.869 \| good	0.223 \| good	5.691 \| good	0.175 \| good
2026-04-24T14:00:00.000Z	22 \| good	4.145 \| good	18.052 \| good	23.549 \| good	0.237 \| good	4.996 \| good	0.178 \| good
2026-04-24T15:00:00.000Z	31 \| good	4.846 \| good	21.194 \| good	32.982 \| good	0.252 \| good	4.301 \| good	0.181 \| good
2026-04-24T16:00:00.000Z	38 \| good	5.547 \| good	24.111 \| good	41.398 \| good	0.399 \| good	3.55 \| good	0.175 \| good
2026-04-24T17:00:00.000Z	43 \| good	5.543 \| good	24.094 \| good	46.414 \| good	0.546 \| good	2.798 \| good	0.169 \| good
2026-04-24T18:00:00.000Z	46 \| good	5.203 \| good	22.596 \| good	50.073 \| good	0.694 \| good	2.047 \| good	0.163 \| good
2026-04-24T19:00:00.000Z	49 \| good	5.429 \| good	23.517 \| good	53.147 \| good	0.634 \| good	1.588 \| good	0.158 \| good
2026-04-24T20:00:00.000Z	54 \| moderate	5.317 \| good	22.718 \| good	56.125 \| fine	0.575 \| good	1.128 \| good	0.153 \| good
2026-04-24T21:00:00.000Z	61 \| moderate	4.908 \| good	21.082 \| good	57.965 \| fine	0.515 \| good	0.669 \| good	0.149 \| good
2026-04-24T22:00:00.000Z	61 \| moderate	4.967 \| good	21.543 \| good	58.24 \| fine	0.48 \| good	0.668 \| good	0.146 \| good
2026-04-24T23:00:00.000Z	64 \| moderate	5.001 \| good	21.604 \| good	59.108 \| fine	0.444 \| good	0.667 \| good	0.143 \| good
2026-04-25T00:00:00.000Z	71 \| moderate	5.141 \| good	22.37 \| good	60.973 \| fine	0.409 \| good	0.666 \| good	0.14 \| good
2026-04-25T01:00:00.000Z	67 \| moderate	5.261 \| good	22.599 \| good	59.669 \| fine	0.411 \| good	2.123 \| good	0.151 \| good
2026-04-25T02:00:00.000Z	54 \| moderate	4.594 \| good	20.2 \| good	56.189 \| fine	0.413 \| good	3.579 \| good	0.161 \| good
2026-04-25T03:00:00.000Z	58 \| moderate	5.64 \| good	24.365 \| good	57.415 \| fine	0.416 \| good	5.036 \| good	0.172 \| good
2026-04-25T04:00:00.000Z	58 \| moderate	3.802 \| good	16.722 \| good	56.969 \| fine	0.4 \| good	5.798 \| good	0.178 \| good
2026-04-25T05:00:00.000Z	47 \| good	3.876 \| good	16.779 \| good	51.252 \| good	0.385 \| good	6.56 \| good	0.183 \| good
2026-04-25T06:00:00.000Z	42 \| good	3.995 \| good	17.551 \| good	45.175 \| good	0.37 \| good	7.321 \| good	0.188 \| good
2026-04-25T07:00:00.000Z	39 \| good	5.082 \| good	22.101 \| good	42.227 \| good	0.337 \| good	6.616 \| good	0.182 \| good
2026-04-25T08:00:00.000Z	44 \| good	8.374 \| good	36.888 \| good	39.474 \| good	0.305 \| good	5.911 \| good	0.175 \| good
2026-04-25T09:00:00.000Z	44 \| good	7.699 \| good	34.062 \| good	36.719 \| good	0.273 \| good	5.206 \| good	0.168 \| good
2026-04-25T10:00:00.000Z	38 \| good	6.947 \| good	30.659 \| good	33.877 \| good	0.266 \| good	5.089 \| good	0.163 \| good
2026-04-25T11:00:00.000Z	44 \| good	7.568 \| good	33.467 \| good	29.653 \| good	0.259 \| good	4.971 \| good	0.158 \| good
2026-04-25T12:00:00.000Z	49 \| good	8.952 \| good	39.625 \| good	21.412 \| good	0.252 \| good	4.854 \| good	0.154 \| good
2026-04-25T13:00:00.000Z	54 \| moderate	11.247 \| good	49.492 \| good	18.554 \| good	0.263 \| good	4.698 \| good	0.156 \| good
2026-04-25T14:00:00.000Z	56 \| moderate	11.786 \| good	53.102 \| good	20.947 \| good	0.274 \| good	4.542 \| good	0.158 \| good
2026-04-25T15:00:00.000Z	56 \| moderate	12.328 \| fine	55.597 \| fine	24.166 \| good	0.286 \| good	4.387 \| good	0.16 \| good
2026-04-25T16:00:00.000Z	58 \| moderate	13.378 \| fine	60.065 \| fine	28.997 \| good	0.404 \| good	3.633 \| good	0.159 \| good
2026-04-25T17:00:00.000Z	62 \| moderate	14.696 \| fine	65.439 \| fine	31.241 \| good	0.522 \| good	2.878 \| good	0.157 \| good
2026-04-25T18:00:00.000Z	62 \| moderate	15.471 \| fine	69.267 \| fine	34.233 \| good	0.641 \| good	2.124 \| good	0.155 \| good
2026-04-25T19:00:00.000Z	64 \| moderate	15.577 \| fine	69.316 \| fine	37.031 \| good	0.633 \| good	1.758 \| good	0.154 \| good
2026-04-25T20:00:00.000Z	64 \| moderate	15.865 \| fine	70.426 \| fine	36.683 \| good	0.625 \| good	1.391 \| good	0.152 \| good
2026-04-25T21:00:00.000Z	62 \| moderate	14.869 \| fine	66.683 \| fine	36.425 \| good	0.617 \| good	1.024 \| good	0.15 \| good
2026-04-25T22:00:00.000Z	60 \| moderate	13.747 \| fine	61.455 \| fine	38.436 \| good	0.541 \| good	1.062 \| good	0.146 \| good
2026-04-25T23:00:00.000Z	56 \| moderate	12.02 \| good	53.644 \| good	40.03 \| good	0.465 \| good	1.099 \| good	0.143 \| good
2026-04-26T00:00:00.000Z	56 \| moderate	11.639 \| good	32.115 \| good	51.782 \| good	0.388 \| good	1.135 \| good	0.139 \| good
2026-04-26T01:00:00.000Z	56 \| moderate	11.762 \| good	52.645 \| good	38.926 \| good	0.333 \| good	1.852 \| good	0.142 \| 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?