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

Currently, Fountain Valley, California has a sulfur dioxide (SO2) concentration of 0.328 ppb.

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

The current ozone (O3) level in Fountain Valley, California at the moment is 3.486 ppm.

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

Nitrogen dioxide (NO2) level in Fountain Valley, California at the moment is 19.537 ppb.

Live air quality index in Fountain Valley, California today

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

PM2.5 levels in Fountain Valley, California are currently 18.685 μg/m3.

Q: What is the PM10 level in Fountain Valley, California at the moment?

The PM10 concentration in Fountain Valley, California is 43.679 μg/m3 at the moment.

Stay updated with real-time air quality in Fountain Valley, California featuring accurate data on AQI, PM_2.5, PM₁₀, O₃, NO₂, SO₂, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.

Live AQI (Air Quality Index)

Moderate

Fountain Valley, California

Last updated: ... (Local time)

Major air pollutants in Fountain Valley, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

18.68 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

43.68 μg/m³

155

255

425

605+

Ozone (O₃)

3.49 ppb

201

201+

Sulfur Dioxide (SO₂)

0.33 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

19.54 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.65 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Fountain Valley, California

Get Live Pollen Counts

Fountain Valley, California

Scroll To Air Quality Map

Track live Fountain Valley, California air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-01-21T16:00:00.000Z	77 \| moderate	23.392 \| fine	51.095 \| good	20.441 \| good	0.866 \| good	24.632 \| good	0.714 \| good
2026-01-21T17:00:00.000Z	77 \| moderate	23.1 \| fine	50.029 \| good	17.798 \| good	0.942 \| good	30.208 \| good	0.67 \| good
2026-01-21T18:00:00.000Z	67 \| moderate	18.274 \| fine	29.516 \| good	20.725 \| good	0.74 \| good	32.325 \| good	0.673 \| good
2026-01-21T19:00:00.000Z	79 \| moderate	23.528 \| fine	83.171 \| fine	30.375 \| good	0.866 \| good	37.238 \| good	0.763 \| good
2026-01-21T20:00:00.000Z	84 \| moderate	26.624 \| fine	47.902 \| good	28.317 \| good	0.732 \| good	38.437 \| good	0.665 \| good
2026-01-21T21:00:00.000Z	86 \| moderate	28.017 \| fine	97.917 \| fine	29.271 \| good	0.608 \| good	34.427 \| good	0.716 \| good
2026-01-21T22:00:00.000Z	49 \| good	8.942 \| good	24.405 \| good	28.91 \| good	0.619 \| good	38.652 \| good	0.709 \| good
2026-01-21T23:00:00.000Z	58 \| moderate	13.372 \| fine	45.456 \| good	30.135 \| good	0.583 \| good	27.82 \| good	0.635 \| good
2026-01-22T00:00:00.000Z	58 \| moderate	12.939 \| fine	42.466 \| good	28.948 \| good	0.616 \| good	10.661 \| good	0.634 \| good
2026-01-22T01:00:00.000Z	56 \| moderate	12.102 \| fine	50.295 \| good	32.434 \| good	0.486 \| good	12.781 \| good	0.684 \| good
2026-01-22T02:00:00.000Z	56 \| moderate	12.163 \| fine	55.659 \| fine	26.464 \| good	0.46 \| good	12.696 \| good	0.684 \| good
2026-01-22T03:00:00.000Z	67 \| moderate	17.778 \| fine	64.131 \| fine	28.347 \| good	0.432 \| good	16.914 \| good	0.74 \| good
2026-01-22T04:00:00.000Z	69 \| moderate	18.865 \| fine	69.085 \| fine	27.208 \| good	0.456 \| good	15.924 \| good	0.728 \| good
2026-01-22T05:00:00.000Z	71 \| moderate	19.591 \| fine	67.818 \| fine	19.575 \| good	0.652 \| good	15.267 \| good	0.729 \| good
2026-01-22T06:00:00.000Z	92 \| moderate	31.008 \| fine	77.486 \| fine	20.46 \| good	0.51 \| good	10.445 \| good	0.821 \| good
2026-01-22T07:00:00.000Z	73 \| moderate	21.471 \| fine	66.312 \| fine	13.073 \| good	0.539 \| good	8.668 \| good	0.906 \| good
2026-01-22T08:00:00.000Z	60 \| moderate	14.425 \| fine	34.116 \| good	13.127 \| good	0.558 \| good	13.148 \| good	0.878 \| good
2026-01-22T09:00:00.000Z	75 \| moderate	22.109 \| fine	57.894 \| fine	11.76 \| good	0.526 \| good	8.465 \| good	0.803 \| good
2026-01-22T10:00:00.000Z	81 \| moderate	25.122 \| fine	62.825 \| fine	11.601 \| good	0.54 \| good	11.769 \| good	0.71 \| good
2026-01-22T11:00:00.000Z	82 \| moderate	25.656 \| fine	56.158 \| fine	8.977 \| good	0.51 \| good	10.87 \| good	0.58 \| good
2026-01-22T12:00:00.000Z	73 \| moderate	20.936 \| fine	55.775 \| fine	14.118 \| good	0.595 \| good	11.457 \| good	0.603 \| good
2026-01-22T13:00:00.000Z	73 \| moderate	21.138 \| fine	36.239 \| good	13.194 \| good	0.596 \| good	12.658 \| good	0.604 \| good
2026-01-22T14:00:00.000Z	56 \| moderate	11.917 \| good	40.349 \| good	13.043 \| good	0.569 \| good	17.728 \| good	0.79 \| good
2026-01-22T15:00:00.000Z	38 \| good	6.864 \| good	25.105 \| good	12.351 \| good	0.7 \| good	22.685 \| good	0.901 \| good
2026-01-22T16:00:00.000Z	54 \| moderate	10.582 \| good	27.543 \| good	16.395 \| good	0.783 \| good	22.203 \| good	0.864 \| good
2026-01-22T17:00:00.000Z	69 \| moderate	19.124 \| fine	52.863 \| good	10.943 \| good	0.892 \| good	21.084 \| good	0.765 \| good
2026-01-22T18:00:00.000Z	69 \| moderate	18.776 \| fine	47.036 \| good	12.108 \| good	0.926 \| good	21.476 \| good	0.604 \| good
2026-01-22T19:00:00.000Z	60 \| moderate	14.158 \| fine	36.625 \| good	16.129 \| good	0.643 \| good	21.985 \| good	0.688 \| good
2026-01-22T20:00:00.000Z	69 \| moderate	18.854 \| fine	39.558 \| good	16.394 \| good	0.546 \| good	23.372 \| good	0.564 \| good
2026-01-22T21:00:00.000Z	64 \| moderate	16.108 \| fine	55.63 \| fine	18.569 \| good	0.547 \| good	23.549 \| good	0.545 \| good
2026-01-22T22:00:00.000Z	79 \| moderate	23.555 \| fine	27.44 \| good	20.207 \| good	0.657 \| good	25.617 \| good	0.528 \| good
2026-01-22T23:00:00.000Z	52 \| moderate	9.954 \| good	37.992 \| good	19.143 \| good	0.595 \| good	31.633 \| good	0.613 \| good
2026-01-23T00:00:00.000Z	52 \| moderate	9.723 \| good	48.825 \| good	31.886 \| good	0.45 \| good	27.235 \| good	0.664 \| good
2026-01-23T01:00:00.000Z	26 \| good	2.4 \| good	11.884 \| good	26.584 \| good	0.434 \| good	27.525 \| good	0.513 \| good
2026-01-23T02:00:00.000Z	69 \| moderate	18.568 \| fine	60.295 \| fine	21.625 \| good	0.404 \| good	29.919 \| good	0.522 \| good
2026-01-23T03:00:00.000Z	66 \| moderate	17.445 \| fine	35.809 \| good	23.151 \| good	0.33 \| good	13.429 \| good	0.515 \| good
2026-01-23T04:00:00.000Z	66 \| moderate	16.745 \| fine	25.585 \| good	16.269 \| good	0.359 \| good	16.825 \| good	0.455 \| good
2026-01-23T05:00:00.000Z	67 \| moderate	18.172 \| fine	24.879 \| good	17.371 \| good	0.515 \| good	15.339 \| good	0.635 \| good
2026-01-23T06:00:00.000Z	62 \| moderate	14.934 \| fine	39.164 \| good	11.523 \| good	0.423 \| good	17.167 \| good	0.633 \| good
2026-01-23T07:00:00.000Z	75 \| moderate	22.266 \| fine	58.411 \| fine	16.405 \| good	0.43 \| good	16.07 \| good	0.636 \| good
2026-01-23T08:00:00.000Z	75 \| moderate	21.599 \| fine	60.283 \| fine	8.349 \| good	0.563 \| good	15.751 \| good	0.654 \| good
2026-01-23T09:00:00.000Z	38 \| good	7.29 \| good	24.857 \| good	5.871 \| good	0.517 \| good	12.029 \| good	0.75 \| good
2026-01-23T10:00:00.000Z	71 \| moderate	20.299 \| fine	43.403 \| good	12.071 \| good	0.47 \| good	12.852 \| good	0.775 \| good
2026-01-23T11:00:00.000Z	66 \| moderate	17.373 \| fine	33.035 \| good	9.337 \| good	0.519 \| good	10.797 \| good	0.637 \| good
2026-01-23T12:00:00.000Z	67 \| moderate	18.437 \| fine	59.725 \| fine	7.304 \| good	0.447 \| good	16.252 \| good	0.551 \| good
2026-01-23T13:00:00.000Z	62 \| moderate	15.421 \| fine	37.463 \| good	3.526 \| good	0.448 \| good	15.859 \| good	0.551 \| good
2026-01-23T14:00:00.000Z	69 \| moderate	18.685 \| fine	43.679 \| good	3.486 \| good	0.328 \| good	19.537 \| good	0.649 \| good
2026-01-23T15:00:00.000Z	69 \| moderate	18.685 \| fine	43.679 \| good	3.486 \| good	0.328 \| good	19.537 \| good	0.649 \| good
2026-01-23T16:00:00.000Z	82 \| moderate	26.209 \| fine	114.429 \| fine	5.673 \| good	2.557 \| good	17.851 \| good	0.208 \| good
2026-01-23T17:00:00.000Z	77 \| moderate	22.566 \| fine	98.598 \| fine	12.95 \| good	2.838 \| good	15.595 \| good	0.199 \| good
2026-01-23T18:00:00.000Z	67 \| moderate	18.363 \| fine	80.68 \| fine	19.385 \| good	3.119 \| good	13.339 \| good	0.19 \| good
2026-01-23T19:00:00.000Z	66 \| moderate	17.027 \| fine	76.372 \| fine	24.759 \| good	3.21 \| good	12.392 \| good	0.175 \| good
2026-01-23T20:00:00.000Z	67 \| moderate	18.03 \| fine	80.436 \| fine	30.047 \| good	3.3 \| good	11.444 \| good	0.16 \| good
2026-01-23T21:00:00.000Z	64 \| moderate	15.654 \| fine	69.039 \| fine	32.08 \| good	3.391 \| good	10.497 \| good	0.146 \| good
2026-01-23T22:00:00.000Z	52 \| moderate	10.246 \| good	45.149 \| good	32.863 \| good	3.541 \| good	11.403 \| good	0.145 \| good
2026-01-23T23:00:00.000Z	38 \| good	6.88 \| good	30.217 \| good	34.05 \| good	3.691 \| good	12.309 \| good	0.145 \| good
2026-01-24T00:00:00.000Z	32 \| good	1.237 \| good	4.972 \| good	35.429 \| good	3.841 \| good	13.215 \| good	0.144 \| good
2026-01-24T01:00:00.000Z	32 \| good	2.74 \| good	11.328 \| good	34.739 \| good	3.836 \| good	15.526 \| good	0.161 \| good
2026-01-24T02:00:00.000Z	28 \| good	2.635 \| good	11.181 \| good	29.608 \| good	3.831 \| good	17.836 \| good	0.178 \| good
2026-01-24T03:00:00.000Z	25 \| good	3.676 \| good	16.388 \| good	26.568 \| good	3.826 \| good	20.147 \| good	0.196 \| good
2026-01-24T04:00:00.000Z	44 \| good	7.981 \| good	34.563 \| good	18.994 \| good	4.137 \| good	20.692 \| good	0.203 \| good
2026-01-24T05:00:00.000Z	33 \| good	6.48 \| good	28.399 \| good	17.441 \| good	4.448 \| good	21.238 \| good	0.211 \| good
2026-01-24T06:00:00.000Z	22 \| good	4.308 \| good	19.2 \| good	17.016 \| good	4.758 \| good	21.783 \| good	0.219 \| good
2026-01-24T07:00:00.000Z	20 \| good	3.057 \| good	12.42 \| good	18.815 \| good	4.881 \| good	21.224 \| good	0.221 \| good
2026-01-24T08:00:00.000Z	27 \| good	4.61 \| good	20.234 \| good	19.81 \| good	5.004 \| good	20.666 \| good	0.223 \| good
2026-01-24T09:00:00.000Z	44 \| good	8.3 \| good	36.421 \| good	19.446 \| good	5.126 \| good	20.107 \| good	0.225 \| good
2026-01-24T10:00:00.000Z	44 \| good	8.487 \| good	37.44 \| good	21.86 \| good	5.083 \| good	18.925 \| good	0.219 \| good
2026-01-24T11:00:00.000Z	49 \| good	9.137 \| good	41.383 \| good	25.978 \| good	5.04 \| good	17.744 \| good	0.214 \| good
2026-01-24T12:00:00.000Z	49 \| good	9.367 \| good	42.209 \| good	22.096 \| good	4.997 \| good	16.562 \| good	0.209 \| good
2026-01-24T13:00:00.000Z	38 \| good	7.061 \| good	31.203 \| good	23.823 \| good	4.967 \| good	16.23 \| good	0.214 \| good
2026-01-24T14:00:00.000Z	44 \| good	7.921 \| good	34.462 \| good	23.609 \| good	4.938 \| good	15.898 \| good	0.218 \| good
2026-01-24T15:00:00.000Z	38 \| good	6.585 \| good	29.268 \| good	23.077 \| good	4.909 \| good	15.565 \| good	0.222 \| good
2026-01-24T16:00:00.000Z	27 \| good	4.754 \| good	21.112 \| good	24.374 \| good	4.743 \| good	13.16 \| good	0.209 \| good
2026-01-24T17:00:00.000Z	38 \| good	6.891 \| good	30.163 \| good	25.384 \| good	4.576 \| good	10.754 \| good	0.195 \| good
2026-01-24T18:00:00.000Z	27 \| good	5.434 \| good	23.235 \| good	27.072 \| good	4.41 \| good	8.348 \| good	0.182 \| good
2026-01-24T19:00:00.000Z	27 \| good	1.27 \| good	5.033 \| good	29.146 \| good	4.412 \| good	8.042 \| good	0.18 \| good
2026-01-24T20:00:00.000Z	29 \| good	2.616 \| good	10.229 \| good	31.008 \| good	4.414 \| good	7.736 \| good	0.178 \| good
2026-01-24T21:00:00.000Z	29 \| good	3.073 \| good	12.198 \| good	31.356 \| good	4.417 \| good	7.43 \| good	0.175 \| good
2026-01-24T22:00:00.000Z	30 \| good	4.886 \| good	21.301 \| good	32.05 \| good	4.321 \| good	7.759 \| good	0.174 \| good
2026-01-24T23:00:00.000Z	38 \| good	7.42 \| good	32.411 \| good	32.642 \| good	4.225 \| good	8.087 \| good	0.172 \| good
2026-01-25T00:00:00.000Z	31 \| good	1.384 \| good	5.199 \| good	32.741 \| good	4.128 \| good	8.415 \| good	0.171 \| good
2026-01-25T01:00:00.000Z	29 \| good	5.427 \| good	23.394 \| good	31.087 \| good	4.258 \| good	12.333 \| good	0.19 \| good
2026-01-25T02:00:00.000Z	38 \| good	6.599 \| good	29.284 \| good	27.449 \| good	4.387 \| good	16.25 \| good	0.209 \| good
2026-01-25T03:00:00.000Z	49 \| good	9.495 \| good	42.32 \| good	20.237 \| good	4.516 \| good	20.168 \| good	0.227 \| good
2026-01-25T04:00:00.000Z	62 \| moderate	14.971 \| fine	67.205 \| fine	12.1 \| good	4.973 \| good	21.599 \| good	0.25 \| good
2026-01-25T05:00:00.000Z	64 \| moderate	16.412 \| fine	73.024 \| fine	7.382 \| good	5.431 \| good	23.031 \| good	0.273 \| good
2026-01-25T06:00:00.000Z	64 \| moderate	15.97 \| fine	70.852 \| fine	6.706 \| good	5.888 \| good	24.463 \| good	0.296 \| good
2026-01-25T07:00:00.000Z	67 \| moderate	17.899 \| fine	78.879 \| fine	6.647 \| good	5.474 \| good	25.129 \| good	0.293 \| good
2026-01-25T08:00:00.000Z	77 \| moderate	22.76 \| fine	98.984 \| fine	4.629 \| good	5.06 \| good	25.795 \| good	0.289 \| good
2026-01-25T09:00:00.000Z	82 \| moderate	25.525 \| fine	110.942 \| fine	4.176 \| good	4.646 \| good	26.461 \| good	0.285 \| good
2026-01-25T10:00:00.000Z	81 \| moderate	25.172 \| fine	110.632 \| fine	5.336 \| good	3.84 \| good	27.595 \| good	0.288 \| good
2026-01-25T11:00:00.000Z	82 \| moderate	26.143 \| fine	114.366 \| fine	6.268 \| good	3.033 \| good	28.729 \| good	0.291 \| good
2026-01-25T12:00:00.000Z	82 \| moderate	26.234 \| fine	114.254 \| fine	3.049 \| good	2.227 \| good	29.864 \| good	0.294 \| good
2026-01-25T13:00:00.000Z	84 \| moderate	26.535 \| fine	116.029 \| fine	3.593 \| good	2.234 \| good	29.104 \| good	0.287 \| good
2026-01-25T14:00:00.000Z	77 \| moderate	22.668 \| fine	99.899 \| fine	1.723 \| good	2.242 \| good	28.344 \| good	0.281 \| good
2026-01-25T15:00:00.000Z	73 \| moderate	21.468 \| fine	93.973 \| fine	2.067 \| good	2.25 \| good	27.584 \| good	0.275 \| good

Fountain Valley

Get reliable air quality data to drive your business

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

0.65ppm

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 Fountain Valley, California?

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

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

In the past 24 hours, the air quality in Fountain Valley, California was at its worst at 10:00:00 on 2026-01-22.

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

In the last 24 hours, the best air quality in Fountain Valley, California was observed at 01:00:00 on 2026-01-23.

What is the AQI in Fountain Valley, California right now?

As of now, the AQI in Fountain Valley, California is 69, indicating Moderate conditions.

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

Fountain Valley, California air has the highest levels of PM2.5.

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

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

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

PM_2.5 levels in Fountain Valley, California are currently 18.685 μg/m³.

What is the PM₁₀ level in Fountain Valley, California at the moment?

The PM₁₀ concentration in Fountain Valley, California is 43.679 μg/m³ at the moment.

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

The current carbon monoxide (CO) concentration in Fountain Valley, California is 0.649 ppm.

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

Currently, Fountain Valley, California has a sulfur dioxide (SO₂) concentration of 0.328 ppb.

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

The current ozone (O₃) level in Fountain Valley, California at the moment is 3.486 ppm.

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

Nitrogen dioxide (NO₂) level in Fountain Valley, California at the moment is 19.537 ppb.

Certified

APIs

Refund Policy

Historical Climate Data

Terms & Conditions

Refund Policy

Terms & Conditions

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-01-21T16:00:00.000Z	77 \| moderate	23.392 \| fine	51.095 \| good	20.441 \| good	0.866 \| good	24.632 \| good	0.714 \| good
2026-01-21T17:00:00.000Z	77 \| moderate	23.1 \| fine	50.029 \| good	17.798 \| good	0.942 \| good	30.208 \| good	0.67 \| good
2026-01-21T18:00:00.000Z	67 \| moderate	18.274 \| fine	29.516 \| good	20.725 \| good	0.74 \| good	32.325 \| good	0.673 \| good
2026-01-21T19:00:00.000Z	79 \| moderate	23.528 \| fine	83.171 \| fine	30.375 \| good	0.866 \| good	37.238 \| good	0.763 \| good
2026-01-21T20:00:00.000Z	84 \| moderate	26.624 \| fine	47.902 \| good	28.317 \| good	0.732 \| good	38.437 \| good	0.665 \| good
2026-01-21T21:00:00.000Z	86 \| moderate	28.017 \| fine	97.917 \| fine	29.271 \| good	0.608 \| good	34.427 \| good	0.716 \| good
2026-01-21T22:00:00.000Z	49 \| good	8.942 \| good	24.405 \| good	28.91 \| good	0.619 \| good	38.652 \| good	0.709 \| good
2026-01-21T23:00:00.000Z	58 \| moderate	13.372 \| fine	45.456 \| good	30.135 \| good	0.583 \| good	27.82 \| good	0.635 \| good
2026-01-22T00:00:00.000Z	58 \| moderate	12.939 \| fine	42.466 \| good	28.948 \| good	0.616 \| good	10.661 \| good	0.634 \| good
2026-01-22T01:00:00.000Z	56 \| moderate	12.102 \| fine	50.295 \| good	32.434 \| good	0.486 \| good	12.781 \| good	0.684 \| good
2026-01-22T02:00:00.000Z	56 \| moderate	12.163 \| fine	55.659 \| fine	26.464 \| good	0.46 \| good	12.696 \| good	0.684 \| good
2026-01-22T03:00:00.000Z	67 \| moderate	17.778 \| fine	64.131 \| fine	28.347 \| good	0.432 \| good	16.914 \| good	0.74 \| good
2026-01-22T04:00:00.000Z	69 \| moderate	18.865 \| fine	69.085 \| fine	27.208 \| good	0.456 \| good	15.924 \| good	0.728 \| good
2026-01-22T05:00:00.000Z	71 \| moderate	19.591 \| fine	67.818 \| fine	19.575 \| good	0.652 \| good	15.267 \| good	0.729 \| good
2026-01-22T06:00:00.000Z	92 \| moderate	31.008 \| fine	77.486 \| fine	20.46 \| good	0.51 \| good	10.445 \| good	0.821 \| good
2026-01-22T07:00:00.000Z	73 \| moderate	21.471 \| fine	66.312 \| fine	13.073 \| good	0.539 \| good	8.668 \| good	0.906 \| good
2026-01-22T08:00:00.000Z	60 \| moderate	14.425 \| fine	34.116 \| good	13.127 \| good	0.558 \| good	13.148 \| good	0.878 \| good
2026-01-22T09:00:00.000Z	75 \| moderate	22.109 \| fine	57.894 \| fine	11.76 \| good	0.526 \| good	8.465 \| good	0.803 \| good
2026-01-22T10:00:00.000Z	81 \| moderate	25.122 \| fine	62.825 \| fine	11.601 \| good	0.54 \| good	11.769 \| good	0.71 \| good
2026-01-22T11:00:00.000Z	82 \| moderate	25.656 \| fine	56.158 \| fine	8.977 \| good	0.51 \| good	10.87 \| good	0.58 \| good
2026-01-22T12:00:00.000Z	73 \| moderate	20.936 \| fine	55.775 \| fine	14.118 \| good	0.595 \| good	11.457 \| good	0.603 \| good
2026-01-22T13:00:00.000Z	73 \| moderate	21.138 \| fine	36.239 \| good	13.194 \| good	0.596 \| good	12.658 \| good	0.604 \| good
2026-01-22T14:00:00.000Z	56 \| moderate	11.917 \| good	40.349 \| good	13.043 \| good	0.569 \| good	17.728 \| good	0.79 \| good
2026-01-22T15:00:00.000Z	38 \| good	6.864 \| good	25.105 \| good	12.351 \| good	0.7 \| good	22.685 \| good	0.901 \| good
2026-01-22T16:00:00.000Z	54 \| moderate	10.582 \| good	27.543 \| good	16.395 \| good	0.783 \| good	22.203 \| good	0.864 \| good
2026-01-22T17:00:00.000Z	69 \| moderate	19.124 \| fine	52.863 \| good	10.943 \| good	0.892 \| good	21.084 \| good	0.765 \| good
2026-01-22T18:00:00.000Z	69 \| moderate	18.776 \| fine	47.036 \| good	12.108 \| good	0.926 \| good	21.476 \| good	0.604 \| good
2026-01-22T19:00:00.000Z	60 \| moderate	14.158 \| fine	36.625 \| good	16.129 \| good	0.643 \| good	21.985 \| good	0.688 \| good
2026-01-22T20:00:00.000Z	69 \| moderate	18.854 \| fine	39.558 \| good	16.394 \| good	0.546 \| good	23.372 \| good	0.564 \| good
2026-01-22T21:00:00.000Z	64 \| moderate	16.108 \| fine	55.63 \| fine	18.569 \| good	0.547 \| good	23.549 \| good	0.545 \| good
2026-01-22T22:00:00.000Z	79 \| moderate	23.555 \| fine	27.44 \| good	20.207 \| good	0.657 \| good	25.617 \| good	0.528 \| good
2026-01-22T23:00:00.000Z	52 \| moderate	9.954 \| good	37.992 \| good	19.143 \| good	0.595 \| good	31.633 \| good	0.613 \| good
2026-01-23T00:00:00.000Z	52 \| moderate	9.723 \| good	48.825 \| good	31.886 \| good	0.45 \| good	27.235 \| good	0.664 \| good
2026-01-23T01:00:00.000Z	26 \| good	2.4 \| good	11.884 \| good	26.584 \| good	0.434 \| good	27.525 \| good	0.513 \| good
2026-01-23T02:00:00.000Z	69 \| moderate	18.568 \| fine	60.295 \| fine	21.625 \| good	0.404 \| good	29.919 \| good	0.522 \| good
2026-01-23T03:00:00.000Z	66 \| moderate	17.445 \| fine	35.809 \| good	23.151 \| good	0.33 \| good	13.429 \| good	0.515 \| good
2026-01-23T04:00:00.000Z	66 \| moderate	16.745 \| fine	25.585 \| good	16.269 \| good	0.359 \| good	16.825 \| good	0.455 \| good
2026-01-23T05:00:00.000Z	67 \| moderate	18.172 \| fine	24.879 \| good	17.371 \| good	0.515 \| good	15.339 \| good	0.635 \| good
2026-01-23T06:00:00.000Z	62 \| moderate	14.934 \| fine	39.164 \| good	11.523 \| good	0.423 \| good	17.167 \| good	0.633 \| good
2026-01-23T07:00:00.000Z	75 \| moderate	22.266 \| fine	58.411 \| fine	16.405 \| good	0.43 \| good	16.07 \| good	0.636 \| good
2026-01-23T08:00:00.000Z	75 \| moderate	21.599 \| fine	60.283 \| fine	8.349 \| good	0.563 \| good	15.751 \| good	0.654 \| good
2026-01-23T09:00:00.000Z	38 \| good	7.29 \| good	24.857 \| good	5.871 \| good	0.517 \| good	12.029 \| good	0.75 \| good
2026-01-23T10:00:00.000Z	71 \| moderate	20.299 \| fine	43.403 \| good	12.071 \| good	0.47 \| good	12.852 \| good	0.775 \| good
2026-01-23T11:00:00.000Z	66 \| moderate	17.373 \| fine	33.035 \| good	9.337 \| good	0.519 \| good	10.797 \| good	0.637 \| good
2026-01-23T12:00:00.000Z	67 \| moderate	18.437 \| fine	59.725 \| fine	7.304 \| good	0.447 \| good	16.252 \| good	0.551 \| good
2026-01-23T13:00:00.000Z	62 \| moderate	15.421 \| fine	37.463 \| good	3.526 \| good	0.448 \| good	15.859 \| good	0.551 \| good
2026-01-23T14:00:00.000Z	69 \| moderate	18.685 \| fine	43.679 \| good	3.486 \| good	0.328 \| good	19.537 \| good	0.649 \| good
2026-01-23T15:00:00.000Z	69 \| moderate	18.685 \| fine	43.679 \| good	3.486 \| good	0.328 \| good	19.537 \| good	0.649 \| good
2026-01-23T16:00:00.000Z	82 \| moderate	26.209 \| fine	114.429 \| fine	5.673 \| good	2.557 \| good	17.851 \| good	0.208 \| good
2026-01-23T17:00:00.000Z	77 \| moderate	22.566 \| fine	98.598 \| fine	12.95 \| good	2.838 \| good	15.595 \| good	0.199 \| good
2026-01-23T18:00:00.000Z	67 \| moderate	18.363 \| fine	80.68 \| fine	19.385 \| good	3.119 \| good	13.339 \| good	0.19 \| good
2026-01-23T19:00:00.000Z	66 \| moderate	17.027 \| fine	76.372 \| fine	24.759 \| good	3.21 \| good	12.392 \| good	0.175 \| good
2026-01-23T20:00:00.000Z	67 \| moderate	18.03 \| fine	80.436 \| fine	30.047 \| good	3.3 \| good	11.444 \| good	0.16 \| good
2026-01-23T21:00:00.000Z	64 \| moderate	15.654 \| fine	69.039 \| fine	32.08 \| good	3.391 \| good	10.497 \| good	0.146 \| good
2026-01-23T22:00:00.000Z	52 \| moderate	10.246 \| good	45.149 \| good	32.863 \| good	3.541 \| good	11.403 \| good	0.145 \| good
2026-01-23T23:00:00.000Z	38 \| good	6.88 \| good	30.217 \| good	34.05 \| good	3.691 \| good	12.309 \| good	0.145 \| good
2026-01-24T00:00:00.000Z	32 \| good	1.237 \| good	4.972 \| good	35.429 \| good	3.841 \| good	13.215 \| good	0.144 \| good
2026-01-24T01:00:00.000Z	32 \| good	2.74 \| good	11.328 \| good	34.739 \| good	3.836 \| good	15.526 \| good	0.161 \| good
2026-01-24T02:00:00.000Z	28 \| good	2.635 \| good	11.181 \| good	29.608 \| good	3.831 \| good	17.836 \| good	0.178 \| good
2026-01-24T03:00:00.000Z	25 \| good	3.676 \| good	16.388 \| good	26.568 \| good	3.826 \| good	20.147 \| good	0.196 \| good
2026-01-24T04:00:00.000Z	44 \| good	7.981 \| good	34.563 \| good	18.994 \| good	4.137 \| good	20.692 \| good	0.203 \| good
2026-01-24T05:00:00.000Z	33 \| good	6.48 \| good	28.399 \| good	17.441 \| good	4.448 \| good	21.238 \| good	0.211 \| good
2026-01-24T06:00:00.000Z	22 \| good	4.308 \| good	19.2 \| good	17.016 \| good	4.758 \| good	21.783 \| good	0.219 \| good
2026-01-24T07:00:00.000Z	20 \| good	3.057 \| good	12.42 \| good	18.815 \| good	4.881 \| good	21.224 \| good	0.221 \| good
2026-01-24T08:00:00.000Z	27 \| good	4.61 \| good	20.234 \| good	19.81 \| good	5.004 \| good	20.666 \| good	0.223 \| good
2026-01-24T09:00:00.000Z	44 \| good	8.3 \| good	36.421 \| good	19.446 \| good	5.126 \| good	20.107 \| good	0.225 \| good
2026-01-24T10:00:00.000Z	44 \| good	8.487 \| good	37.44 \| good	21.86 \| good	5.083 \| good	18.925 \| good	0.219 \| good
2026-01-24T11:00:00.000Z	49 \| good	9.137 \| good	41.383 \| good	25.978 \| good	5.04 \| good	17.744 \| good	0.214 \| good
2026-01-24T12:00:00.000Z	49 \| good	9.367 \| good	42.209 \| good	22.096 \| good	4.997 \| good	16.562 \| good	0.209 \| good
2026-01-24T13:00:00.000Z	38 \| good	7.061 \| good	31.203 \| good	23.823 \| good	4.967 \| good	16.23 \| good	0.214 \| good
2026-01-24T14:00:00.000Z	44 \| good	7.921 \| good	34.462 \| good	23.609 \| good	4.938 \| good	15.898 \| good	0.218 \| good
2026-01-24T15:00:00.000Z	38 \| good	6.585 \| good	29.268 \| good	23.077 \| good	4.909 \| good	15.565 \| good	0.222 \| good
2026-01-24T16:00:00.000Z	27 \| good	4.754 \| good	21.112 \| good	24.374 \| good	4.743 \| good	13.16 \| good	0.209 \| good
2026-01-24T17:00:00.000Z	38 \| good	6.891 \| good	30.163 \| good	25.384 \| good	4.576 \| good	10.754 \| good	0.195 \| good
2026-01-24T18:00:00.000Z	27 \| good	5.434 \| good	23.235 \| good	27.072 \| good	4.41 \| good	8.348 \| good	0.182 \| good
2026-01-24T19:00:00.000Z	27 \| good	1.27 \| good	5.033 \| good	29.146 \| good	4.412 \| good	8.042 \| good	0.18 \| good
2026-01-24T20:00:00.000Z	29 \| good	2.616 \| good	10.229 \| good	31.008 \| good	4.414 \| good	7.736 \| good	0.178 \| good
2026-01-24T21:00:00.000Z	29 \| good	3.073 \| good	12.198 \| good	31.356 \| good	4.417 \| good	7.43 \| good	0.175 \| good
2026-01-24T22:00:00.000Z	30 \| good	4.886 \| good	21.301 \| good	32.05 \| good	4.321 \| good	7.759 \| good	0.174 \| good
2026-01-24T23:00:00.000Z	38 \| good	7.42 \| good	32.411 \| good	32.642 \| good	4.225 \| good	8.087 \| good	0.172 \| good
2026-01-25T00:00:00.000Z	31 \| good	1.384 \| good	5.199 \| good	32.741 \| good	4.128 \| good	8.415 \| good	0.171 \| good
2026-01-25T01:00:00.000Z	29 \| good	5.427 \| good	23.394 \| good	31.087 \| good	4.258 \| good	12.333 \| good	0.19 \| good
2026-01-25T02:00:00.000Z	38 \| good	6.599 \| good	29.284 \| good	27.449 \| good	4.387 \| good	16.25 \| good	0.209 \| good
2026-01-25T03:00:00.000Z	49 \| good	9.495 \| good	42.32 \| good	20.237 \| good	4.516 \| good	20.168 \| good	0.227 \| good
2026-01-25T04:00:00.000Z	62 \| moderate	14.971 \| fine	67.205 \| fine	12.1 \| good	4.973 \| good	21.599 \| good	0.25 \| good
2026-01-25T05:00:00.000Z	64 \| moderate	16.412 \| fine	73.024 \| fine	7.382 \| good	5.431 \| good	23.031 \| good	0.273 \| good
2026-01-25T06:00:00.000Z	64 \| moderate	15.97 \| fine	70.852 \| fine	6.706 \| good	5.888 \| good	24.463 \| good	0.296 \| good
2026-01-25T07:00:00.000Z	67 \| moderate	17.899 \| fine	78.879 \| fine	6.647 \| good	5.474 \| good	25.129 \| good	0.293 \| good
2026-01-25T08:00:00.000Z	77 \| moderate	22.76 \| fine	98.984 \| fine	4.629 \| good	5.06 \| good	25.795 \| good	0.289 \| good
2026-01-25T09:00:00.000Z	82 \| moderate	25.525 \| fine	110.942 \| fine	4.176 \| good	4.646 \| good	26.461 \| good	0.285 \| good
2026-01-25T10:00:00.000Z	81 \| moderate	25.172 \| fine	110.632 \| fine	5.336 \| good	3.84 \| good	27.595 \| good	0.288 \| good
2026-01-25T11:00:00.000Z	82 \| moderate	26.143 \| fine	114.366 \| fine	6.268 \| good	3.033 \| good	28.729 \| good	0.291 \| good
2026-01-25T12:00:00.000Z	82 \| moderate	26.234 \| fine	114.254 \| fine	3.049 \| good	2.227 \| good	29.864 \| good	0.294 \| good
2026-01-25T13:00:00.000Z	84 \| moderate	26.535 \| fine	116.029 \| fine	3.593 \| good	2.234 \| good	29.104 \| good	0.287 \| good
2026-01-25T14:00:00.000Z	77 \| moderate	22.668 \| fine	99.899 \| fine	1.723 \| good	2.242 \| good	28.344 \| good	0.281 \| good
2026-01-25T15:00:00.000Z	73 \| moderate	21.468 \| fine	93.973 \| fine	2.067 \| good	2.25 \| good	27.584 \| good	0.275 \| good

Live air quality index in Fountain Valley, California today

Major air pollutants in Fountain Valley, California

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Fountain Valley, California air quality forecast and history

Get reliable air quality data to drive your business

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

Air quality in nearby cities

Westminster, California

Costa Mesa, California

Huntington Beach, California

Garden Grove, California

Santa Ana, California

Stanton, California

How accurate is California, USA air quality data?

Air quality levels in US

Frequently asked questions

How often is air quality information updated for Fountain Valley, California?

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

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

What is the AQI in Fountain Valley, California right now?

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

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

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

What is the PM10 level in Fountain Valley, California at the moment?

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

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

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

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

What is the PM₁₀ level in Fountain Valley, California at the moment?

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

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

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