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

The PM10 concentration in California, USA is 28.999 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 0.608 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 24.931 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 8.325 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 7.127 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)

7.13 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

29.00 μg/m³

155

255

425

605+

Ozone (O₃)

24.93 ppb

201

201+

Sulfur Dioxide (SO₂)

0.61 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

8.32 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.32 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

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

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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
2026-03-07T20:00:00.000Z	44 \| good	7.602 \| good	22.745 \| good	25.764 \| good	0.618 \| good	5.391 \| good	0.158 \| good
2026-03-07T21:00:00.000Z	33 \| good	5.966 \| good	21.441 \| good	33.681 \| good	0.657 \| good	4.228 \| good	0.115 \| good
2026-03-07T22:00:00.000Z	44 \| good	8.043 \| good	28.905 \| good	37.836 \| good	0.664 \| good	3.004 \| good	0.12 \| good
2026-03-07T23:00:00.000Z	37 \| good	5.883 \| good	25.079 \| good	39.984 \| good	0.607 \| good	3.414 \| good	0.12 \| good
2026-03-08T00:00:00.000Z	37 \| good	3.648 \| good	23.208 \| good	40.092 \| good	0.553 \| good	3.373 \| good	0.12 \| good
2026-03-08T01:00:00.000Z	40 \| good	5.882 \| good	19.876 \| good	42.978 \| good	0.534 \| good	4.416 \| good	0.115 \| good
2026-03-08T02:00:00.000Z	42 \| good	6.041 \| good	27.324 \| good	44.747 \| good	0.555 \| good	2.731 \| good	0.166 \| good
2026-03-08T03:00:00.000Z	33 \| good	5.87 \| good	25.834 \| good	29.435 \| good	0.59 \| good	9.972 \| good	0.219 \| good
2026-03-08T04:00:00.000Z	32 \| good	2.073 \| good	9.266 \| good	34.968 \| good	0.563 \| good	12.472 \| good	0.329 \| good
2026-03-08T05:00:00.000Z	30 \| good	3.556 \| good	16.786 \| good	31.999 \| good	0.529 \| good	11.365 \| good	0.363 \| good
2026-03-08T06:00:00.000Z	25 \| good	3.08 \| good	10.332 \| good	26.619 \| good	0.589 \| good	10.083 \| good	0.378 \| good
2026-03-08T07:00:00.000Z	22 \| good	3.501 \| good	15.59 \| good	23.328 \| good	0.553 \| good	6.415 \| good	0.345 \| good
2026-03-08T08:00:00.000Z	44 \| good	7.716 \| good	25.622 \| good	22.07 \| good	0.533 \| good	4.751 \| good	0.344 \| good
2026-03-08T09:00:00.000Z	27 \| good	5.246 \| good	10.601 \| good	15.029 \| good	0.483 \| good	3.757 \| good	0.304 \| good
2026-03-08T10:00:00.000Z	33 \| good	5.58 \| good	19.091 \| good	11.607 \| good	0.386 \| good	4.681 \| good	0.289 \| good
2026-03-08T11:00:00.000Z	49 \| good	9.406 \| good	18.685 \| good	9.863 \| good	0.45 \| good	6.111 \| good	0.209 \| good
2026-03-08T12:00:00.000Z	44 \| good	8.45 \| good	17.348 \| good	11.327 \| good	0.344 \| good	6.552 \| good	0.195 \| good
2026-03-08T13:00:00.000Z	27 \| good	4.906 \| good	14.164 \| good	11.445 \| good	0.466 \| good	5.459 \| good	0.194 \| good
2026-03-08T14:00:00.000Z	33 \| good	6.241 \| good	13.548 \| good	12.395 \| good	0.476 \| good	7.494 \| good	0.255 \| good
2026-03-08T15:00:00.000Z	33 \| good	5.565 \| good	19.601 \| good	8.996 \| good	0.496 \| good	10.45 \| good	0.155 \| good
2026-03-08T16:00:00.000Z	33 \| good	6.301 \| good	6.946 \| good	11.608 \| good	0.417 \| good	12.211 \| good	0.2 \| good
2026-03-08T17:00:00.000Z	38 \| good	6.966 \| good	18.958 \| good	13.972 \| good	0.512 \| good	8.716 \| good	0.196 \| good
2026-03-08T18:00:00.000Z	38 \| good	7.241 \| good	20.786 \| good	23.259 \| good	0.624 \| good	7.307 \| good	0.234 \| good
2026-03-08T19:00:00.000Z	38 \| good	7.234 \| good	21.629 \| good	28.915 \| good	0.872 \| good	4.751 \| good	0.2 \| good
2026-03-08T20:00:00.000Z	29 \| good	4.214 \| good	14.376 \| good	30.628 \| good	0.794 \| good	4.113 \| good	0.2 \| good
2026-03-08T21:00:00.000Z	38 \| good	6.993 \| good	15.96 \| good	33.752 \| good	0.889 \| good	3.54 \| good	0.196 \| good
2026-03-08T22:00:00.000Z	44 \| good	7.759 \| good	16.615 \| good	36.963 \| good	0.845 \| good	3.23 \| good	0.157 \| good
2026-03-08T23:00:00.000Z	39 \| good	4.418 \| good	10.292 \| good	42.324 \| good	0.66 \| good	3.619 \| good	0.111 \| good
2026-03-09T00:00:00.000Z	41 \| good	4.779 \| good	8.313 \| good	44.217 \| good	0.578 \| good	3.463 \| good	0.111 \| good
2026-03-09T01:00:00.000Z	43 \| good	2.951 \| good	5.947 \| good	46.231 \| good	0.6 \| good	3.5 \| good	0.131 \| good
2026-03-09T02:00:00.000Z	38 \| good	2.025 \| good	8.531 \| good	41.453 \| good	0.447 \| good	4.145 \| good	0.126 \| good
2026-03-09T03:00:00.000Z	27 \| good	3.635 \| good	15.646 \| good	29.384 \| good	0.713 \| good	11.906 \| good	0.248 \| good
2026-03-09T04:00:00.000Z	32 \| good	3.34 \| good	12.457 \| good	35.39 \| good	0.475 \| good	12.085 \| good	0.261 \| good
2026-03-09T05:00:00.000Z	30 \| good	5.308 \| good	13.81 \| good	31.837 \| good	0.481 \| good	20.167 \| good	0.359 \| good
2026-03-09T06:00:00.000Z	24 \| good	1.73 \| good	16.634 \| good	26.429 \| good	0.456 \| good	16.594 \| good	0.395 \| good
2026-03-09T07:00:00.000Z	21 \| good	2.969 \| good	9.679 \| good	22.67 \| good	0.523 \| good	17.928 \| good	0.454 \| good
2026-03-09T08:00:00.000Z	33 \| good	6.204 \| good	21.677 \| good	16.427 \| good	0.465 \| good	11.437 \| good	0.358 \| good
2026-03-09T09:00:00.000Z	13 \| good	1.722 \| good	4.576 \| good	13.527 \| good	0.503 \| good	11.318 \| good	0.283 \| good
2026-03-09T10:00:00.000Z	22 \| good	4.115 \| good	11.334 \| good	9.528 \| good	0.433 \| good	9.23 \| good	0.175 \| good
2026-03-09T11:00:00.000Z	27 \| good	5.004 \| good	14.122 \| good	6.971 \| good	0.433 \| good	9.544 \| good	0.165 \| good
2026-03-09T12:00:00.000Z	27 \| good	5.201 \| good	7.957 \| good	8.984 \| good	0.421 \| good	13.015 \| good	0.175 \| good
2026-03-09T13:00:00.000Z	16 \| good	2.673 \| good	6.007 \| good	11.96 \| good	0.416 \| good	12.078 \| good	0.169 \| good
2026-03-09T14:00:00.000Z	22 \| good	3.614 \| good	14.047 \| good	11.944 \| good	0.49 \| good	11.52 \| good	0.211 \| good
2026-03-09T15:00:00.000Z	16 \| good	2.544 \| good	12.199 \| good	13.194 \| good	0.511 \| good	12.749 \| good	0.375 \| good
2026-03-09T16:00:00.000Z	15 \| good	2.286 \| good	5.332 \| good	9.134 \| good	0.641 \| good	16.107 \| good	0.548 \| good
2026-03-09T17:00:00.000Z	27 \| good	5.474 \| good	13.979 \| good	11.968 \| good	0.789 \| good	14.331 \| good	0.542 \| good
2026-03-09T18:00:00.000Z	24 \| good	4.137 \| good	25.353 \| good	26.405 \| good	0.818 \| good	10.183 \| good	0.321 \| good
2026-03-09T19:00:00.000Z	33 \| good	6.062 \| good	35.695 \| good	26.643 \| good	0.656 \| good	7.69 \| good	0.156 \| good
2026-03-09T19:00:00.000Z	38 \| good	7.127 \| good	28.999 \| good	24.931 \| good	0.608 \| good	8.325 \| good	0.324 \| good
2026-03-09T20:00:00.000Z	40 \| good	2.226 \| good	8.846 \| good	42.532 \| good	0.732 \| good	2.178 \| good	0.177 \| good
2026-03-09T21:00:00.000Z	42 \| good	2.334 \| good	9.633 \| good	45.155 \| good	0.781 \| good	1.633 \| good	0.176 \| good
2026-03-09T22:00:00.000Z	42 \| good	2.466 \| good	9.923 \| good	45.351 \| good	0.728 \| good	1.508 \| good	0.172 \| good
2026-03-09T23:00:00.000Z	47 \| good	3.997 \| good	17.244 \| good	50.629 \| good	0.676 \| good	1.383 \| good	0.168 \| good
2026-03-10T00:00:00.000Z	44 \| good	4.984 \| good	21.414 \| good	48.28 \| good	0.624 \| good	1.259 \| good	0.165 \| good
2026-03-10T01:00:00.000Z	42 \| good	3.186 \| good	13.613 \| good	44.836 \| good	0.646 \| good	4.148 \| good	0.188 \| good
2026-03-10T02:00:00.000Z	34 \| good	3.472 \| good	14.918 \| good	37.305 \| good	0.668 \| good	7.037 \| good	0.212 \| good
2026-03-10T03:00:00.000Z	32 \| good	4.768 \| good	20.425 \| good	34.534 \| good	0.69 \| good	9.926 \| good	0.236 \| good
2026-03-10T04:00:00.000Z	27 \| good	5.306 \| good	23.207 \| good	29.484 \| good	0.663 \| good	10.577 \| good	0.239 \| good
2026-03-10T05:00:00.000Z	23 \| good	3.036 \| good	12.909 \| good	25.218 \| good	0.636 \| good	11.229 \| good	0.242 \| good
2026-03-10T06:00:00.000Z	19 \| good	3.306 \| good	14.072 \| good	20.462 \| good	0.609 \| good	11.88 \| good	0.245 \| good
2026-03-10T07:00:00.000Z	23 \| good	4.369 \| good	19.22 \| good	24.665 \| good	0.493 \| good	10.472 \| good	0.233 \| good
2026-03-10T08:00:00.000Z	38 \| good	6.583 \| good	28.914 \| good	22.996 \| good	0.377 \| good	9.065 \| good	0.221 \| good
2026-03-10T09:00:00.000Z	44 \| good	7.548 \| good	33.392 \| good	23.989 \| good	0.261 \| good	7.657 \| good	0.209 \| good
2026-03-10T10:00:00.000Z	22 \| good	3.811 \| good	16.578 \| good	22.148 \| good	0.217 \| good	6.956 \| good	0.198 \| good
2026-03-10T11:00:00.000Z	22 \| good	4.299 \| good	18.54 \| good	22.285 \| good	0.173 \| good	6.255 \| good	0.186 \| good
2026-03-10T12:00:00.000Z	27 \| good	4.703 \| good	20.315 \| good	18.108 \| good	0.129 \| good	5.553 \| good	0.175 \| good
2026-03-10T13:00:00.000Z	22 \| good	3.819 \| good	16.481 \| good	17.478 \| good	0.137 \| good	5.301 \| good	0.174 \| good
2026-03-10T14:00:00.000Z	27 \| good	4.822 \| good	21.184 \| good	16.066 \| good	0.145 \| good	5.049 \| good	0.173 \| good
2026-03-10T15:00:00.000Z	27 \| good	4.832 \| good	20.9 \| good	16.645 \| good	0.154 \| good	4.796 \| good	0.172 \| good
2026-03-10T16:00:00.000Z	38 \| good	6.852 \| good	30.591 \| good	21.717 \| good	0.286 \| good	4.107 \| good	0.173 \| good
2026-03-10T17:00:00.000Z	44 \| good	8.016 \| good	35.135 \| good	28.166 \| good	0.418 \| good	3.417 \| good	0.174 \| good
2026-03-10T18:00:00.000Z	44 \| good	7.932 \| good	34.986 \| good	35.29 \| good	0.55 \| good	2.728 \| good	0.176 \| good
2026-03-10T19:00:00.000Z	49 \| good	8.937 \| good	39.858 \| good	39.819 \| good	0.665 \| good	2.294 \| good	0.178 \| good
2026-03-10T20:00:00.000Z	54 \| moderate	10.528 \| good	46.714 \| good	44.247 \| good	0.78 \| good	1.861 \| good	0.181 \| good
2026-03-10T21:00:00.000Z	56 \| moderate	11.77 \| good	52.264 \| good	48.597 \| good	0.895 \| good	1.428 \| good	0.184 \| good
2026-03-10T22:00:00.000Z	58 \| moderate	13.052 \| fine	58.602 \| fine	49.922 \| good	0.865 \| good	1.303 \| good	0.179 \| good
2026-03-10T23:00:00.000Z	58 \| moderate	13.133 \| fine	58.964 \| fine	51.175 \| good	0.834 \| good	1.177 \| good	0.175 \| good
2026-03-11T00:00:00.000Z	54 \| moderate	11.027 \| good	48.67 \| good	47.364 \| good	0.803 \| good	1.051 \| good	0.17 \| good
2026-03-11T01:00:00.000Z	54 \| moderate	11.253 \| good	49.56 \| good	44.384 \| good	0.806 \| good	2.261 \| good	0.178 \| good
2026-03-11T02:00:00.000Z	44 \| good	8.344 \| good	36.408 \| good	39.777 \| good	0.809 \| good	3.471 \| good	0.186 \| good
2026-03-11T03:00:00.000Z	49 \| good	8.958 \| good	39.814 \| good	36.289 \| good	0.812 \| good	4.681 \| good	0.194 \| good
2026-03-11T04:00:00.000Z	52 \| moderate	10.143 \| good	45.131 \| good	32.787 \| good	0.77 \| good	5.119 \| good	0.196 \| good
2026-03-11T05:00:00.000Z	54 \| moderate	11.41 \| good	50.536 \| good	29.934 \| good	0.729 \| good	5.556 \| good	0.198 \| good
2026-03-11T06:00:00.000Z	60 \| moderate	14.154 \| fine	24.545 \| good	29.08 \| good	0.699 \| good	6.07 \| good	0.201 \| good
2026-03-11T07:00:00.000Z	60 \| moderate	13.559 \| fine	60.745 \| fine	25.242 \| good	0.632 \| good	6.071 \| good	0.198 \| good
2026-03-11T08:00:00.000Z	62 \| moderate	15.486 \| fine	69.163 \| fine	22.664 \| good	0.576 \| good	6.147 \| good	0.196 \| good
2026-03-11T09:00:00.000Z	58 \| moderate	13.041 \| fine	58.953 \| fine	21.022 \| good	0.52 \| good	6.223 \| good	0.193 \| good
2026-03-11T10:00:00.000Z	62 \| moderate	14.742 \| fine	65.322 \| fine	19.287 \| good	0.481 \| good	5.888 \| good	0.186 \| good
2026-03-11T11:00:00.000Z	64 \| moderate	16.356 \| fine	72.82 \| fine	18.933 \| good	0.442 \| good	5.552 \| good	0.178 \| good
2026-03-11T12:00:00.000Z	52 \| moderate	9.775 \| good	17.191 \| good	20.962 \| good	0.411 \| good	5.272 \| good	0.171 \| good
2026-03-11T13:00:00.000Z	49 \| good	9.048 \| good	15.519 \| good	20.818 \| good	0.397 \| good	5.107 \| good	0.172 \| good
2026-03-11T14:00:00.000Z	44 \| good	8.434 \| good	13.966 \| good	20.675 \| good	0.383 \| good	4.942 \| good	0.172 \| good
2026-03-11T15:00:00.000Z	49 \| good	8.533 \| good	13.27 \| good	20.532 \| good	0.37 \| good	4.777 \| good	0.173 \| good
2026-03-11T16:00:00.000Z	49 \| good	8.643 \| good	12.04 \| good	26.618 \| good	0.537 \| good	4.089 \| good	0.175 \| good
2026-03-11T17:00:00.000Z	60 \| moderate	14.391 \| fine	64.248 \| fine	33.727 \| good	0.691 \| good	3.352 \| good	0.176 \| good
2026-03-11T18:00:00.000Z	52 \| moderate	10.113 \| good	14.684 \| good	38.791 \| good	0.872 \| good	2.712 \| good	0.179 \| good
2026-03-11T19:00:00.000Z	52 \| moderate	10.318 \| good	14.702 \| good	42.135 \| good	0.903 \| good	2.419 \| good	0.18 \| 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
Bakersfield, California	97 Moderate	33.89μg/m³ Fine	131.18μg/m³ Fine	12.26ppb Good	0.66ppb Good	24.58ppb Good	0.33ppm Good
East Bakersfield, California	92 Moderate	31.39μg/m³ Fine	123.30μg/m³ Fine	13.86ppb Good	0.66ppb Good	23.01ppb Good	0.33ppm Good
Potomac Park, California	88 Moderate	28.79μg/m³ Fine	115.09μg/m³ Fine	15.87ppb Good	0.66ppb Good	19.51ppb Good	0.33ppm Good
Greenfield city, California	86 Moderate	27.89μg/m³ Fine	112.07μg/m³ Fine	12.39ppb Good	0.66ppb Good	20.00ppb Good	0.32ppm Good
Hillcrest, California	82 Moderate	26.15μg/m³ Fine	105.01μg/m³ Fine	18.46ppb Good	0.66ppb Good	18.81ppb Good	0.34ppm Good
East Niles, California	82 Moderate	26.15μg/m³ Fine	105.01μg/m³ Fine	18.46ppb Good	0.66ppb Good	18.81ppb Good	0.34ppm Good
Oildale, California	77 Moderate	23.43μg/m³ Fine	96.36μg/m³ Fine	20.87ppb Good	0.66ppb Good	19.61ppb Good	0.34ppm Good
Rosedale, California	77 Moderate	22.66μg/m³ Fine	90.21μg/m³ Fine	13.42ppb Good	0.65ppb Good	20.60ppb Good	0.35ppm Good
Lamont, California	69 Moderate	18.95μg/m³ Fine	77.49μg/m³ Fine	20.38ppb Good	0.66ppb Good	16.48ppb Good	0.35ppm Good
Tulare, California	64 Moderate	16.18μg/m³ Fine	35.76μg/m³ Good	13.27ppb Good	0.69ppb Good	17.39ppb Good	0.49ppm Good
Wasco, California	62 Moderate	15.48μg/m³ Fine	51.68μg/m³ Good	13.12ppb Good	0.65ppb Good	17.62ppb Good	0.40ppm Good
Jurupa Valley, California	62 Moderate	15.16μg/m³ Fine	72.32μg/m³ Fine	12.98ppb Good	0.98ppb Good	24.50ppb Good	0.52ppm Good
McFarland, California	60 Moderate	14.44μg/m³ Fine	50.20μg/m³ Good	11.19ppb Good	0.64ppb Good	17.53ppb Good	0.44ppm Good
Stockton, California	62 Moderate	14.56μg/m³ Fine	54.79μg/m³ Fine	5.05ppb Good	0.83ppb Good	11.99ppb Good	0.43ppm Good
Country Club, California	60 Moderate	14.13μg/m³ Fine	52.76μg/m³ Good	5.52ppb Good	0.84ppb Good	11.84ppb Good	0.43ppm Good
Garden Acres, California	60 Moderate	14.12μg/m³ Fine	52.73μg/m³ Good	5.56ppb Good	0.84ppb Good	11.91ppb Good	0.43ppm Good
Hesperia, California	60 Moderate	14.22μg/m³ Fine	65.15μg/m³ Fine	26.18ppb Good	0.71ppb Good	19.77ppb Good	0.54ppm Good
Rio Vista, California	60 Moderate	14.06μg/m³ Fine	41.64μg/m³ Good	13.05ppb Good	1.06ppb Good	14.98ppb Good	0.44ppm Good
San Francisco, California	60 Moderate	13.68μg/m³ Fine	60.68μg/m³ Fine	10.03ppb Good	0.44ppb Good	12.72ppb Good	0.68ppm Good
Victorville, California	58 Moderate	13.28μg/m³ Fine	60.08μg/m³ Fine	12.29ppb Good	0.71ppb Good	19.62ppb Good	0.54ppm Good
Barstow, California	58 Moderate	13.00μg/m³ Fine	59.00μg/m³ Fine	9.01ppb Good	0.76ppb Good	15.35ppb Good	0.55ppm Good
Corona, California	58 Moderate	12.82μg/m³ Fine	49.55μg/m³ Good	23.99ppb Good	0.99ppb Good	27.51ppb Good	0.54ppm Good
Home Gardens, California	58 Moderate	12.82μg/m³ Fine	49.55μg/m³ Good	23.99ppb Good	0.99ppb Good	27.51ppb Good	0.54ppm Good
Norco, California	58 Moderate	12.85μg/m³ Fine	59.96μg/m³ Fine	12.55ppb Good	0.99ppb Good	31.93ppb Good	0.52ppm Good
Spring Valley Lake, California	58 Moderate	13.02μg/m³ Fine	59.12μg/m³ Fine	17.56ppb Good	0.71ppb Good	19.55ppb Good	0.54ppm Good
West Sacramento, California	58 Moderate	12.78μg/m³ Fine	46.11μg/m³ Good	12.10ppb Good	0.78ppb Good	14.49ppb Good	0.41ppm Good
Adelanto, California	58 Moderate	12.58μg/m³ Fine	57.02μg/m³ Fine	14.38ppb Good	0.76ppb Good	20.29ppb Good	0.54ppm Good
Apple Valley, California	56 Moderate	12.21μg/m³ Fine	55.49μg/m³ Fine	19.82ppb Good	0.72ppb Good	19.31ppb Good	0.54ppm Good
Eastvale, California	56 Moderate	12.19μg/m³ Fine	54.94μg/m³ Fine	12.69ppb Good	0.98ppb Good	35.10ppb Good	0.52ppm Good
Sacramento, California	56 Moderate	12.18μg/m³ Fine	33.31μg/m³ Good	11.08ppb Good	0.79ppb Good	16.84ppb Good	0.41ppm Good
Riverside, California	58 Moderate	12.64μg/m³ Fine	61.52μg/m³ Fine	10.87ppb Good	0.74ppb Good	30.33ppb Good	0.51ppm Good
Bloomington, California	56 Moderate	11.96μg/m³ Good	57.49μg/m³ Fine	11.37ppb Good	0.96ppb Good	30.60ppb Good	0.51ppm Good
Modesto, California	56 Moderate	12.00μg/m³ Good	28.00μg/m³ Good	8.00ppb Good	0.76ppb Good	12.29ppb Good	0.48ppm Good
Shafter, California	56 Moderate	11.74μg/m³ Good	31.87μg/m³ Good	12.02ppb Good	0.65ppb Good	16.23ppb Good	0.43ppm Good
Woodcrest, California	56 Moderate	12.01μg/m³ Hazardous	57.82μg/m³ Fine	13.52ppb Good	0.77ppb Good	27.31ppb Good	0.52ppm Good
Woodland, California	56 Moderate	12.10μg/m³ Hazardous	53.66μg/m³ Good	11.21ppb Good	0.75ppb Good	12.40ppb Good	0.46ppm Good
Ceres, California	54 Moderate	11.47μg/m³ Good	27.62μg/m³ Good	8.20ppb Good	0.76ppb Good	12.48ppb Good	0.48ppm Good
Daly City, California	54 Moderate	11.28μg/m³ Good	50.07μg/m³ Good	9.63ppb Good	0.40ppb Good	13.11ppb Good	0.69ppm Good
Fontana, California	54 Moderate	11.24μg/m³ Good	53.45μg/m³ Good	10.83ppb Good	1.26ppb Good	32.55ppb Good	0.51ppm Good
Hanford, California	54 Moderate	11.08μg/m³ Good	43.89μg/m³ Good	7.03ppb Good	0.56ppb Good	14.83ppb Good	0.52ppm Good
Lemoore, California	54 Moderate	11.28μg/m³ Good	41.27μg/m³ Good	11.19ppb Good	0.60ppb Good	18.18ppb Good	0.52ppm Good
Ontario, California	54 Moderate	11.27μg/m³ Good	48.26μg/m³ Good	13.60ppb Good	0.94ppb Good	37.34ppb Good	0.53ppm Good
Rancho Cucamonga, California	54 Moderate	11.18μg/m³ Good	51.06μg/m³ Good	12.88ppb Good	1.10ppb Good	36.77ppb Good	0.52ppm Good
Riverbank, California	54 Moderate	11.24μg/m³ Good	28.11μg/m³ Good	8.56ppb Good	0.77ppb Good	12.41ppb Good	0.48ppm Good
Chino, California	54 Moderate	11.00μg/m³ Good	47.84μg/m³ Good	14.39ppb Good	0.96ppb Good	35.36ppb Good	0.53ppm Good
Gilroy, California	54 Moderate	10.80μg/m³ Good	47.48μg/m³ Good	9.86ppb Good	0.71ppb Good	14.35ppb Good	0.49ppm Good
Grand Terrace, California	54 Moderate	10.74μg/m³ Good	51.33μg/m³ Good	14.30ppb Good	0.85ppb Good	25.35ppb Good	0.52ppm Good
Lemon Hill, California	54 Moderate	10.98μg/m³ Good	33.30μg/m³ Good	11.43ppb Good	0.79ppb Good	15.70ppb Good	0.42ppm Good
Salida, California	54 Moderate	10.63μg/m³ Good	28.10μg/m³ Good	9.55ppb Good	0.79ppb Good	12.28ppb Good	0.47ppm Good
Upland, California	54 Moderate	10.77μg/m³ Good	47.78μg/m³ Good	14.46ppb Good	1.02ppb Good	34.90ppb Good	0.53ppm Good

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

0.21ppm

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.

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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 10:00:00 on 2026-03-08.

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 09:00:00 on 2026-03-09.

What is the AQI in California, USA right now?

As of now, the AQI in California, USA is 38, indicating Good 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 7.127 μg/m³.

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

The PM₁₀ concentration in California, USA is 28.999 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 0.324 ppm.

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

Currently, California, USA has a sulfur dioxide (SO₂) concentration of 0.608 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 24.931 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 8.325 ppb.

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