What is the sulfur dioxide (SO2) level in Rancho Santa Margarita, California at the moment?

Currently, Rancho Santa Margarita, California has a sulfur dioxide (SO2) concentration of 0.902 ppb.

What is the nitrogen dioxide (NO2) level in Rancho Santa Margarita, California at the moment?

Nitrogen dioxide (NO2) level in Rancho Santa Margarita, California at the moment is 8.592 ppb.

Live air quality index in Rancho Santa Margarita, California today

Q: What is the PM2.5 level in Rancho Santa Margarita, California at the moment?

PM2.5 levels in Rancho Santa Margarita, California are currently 11.721 μg/m3.

Q: What is the PM10 level in Rancho Santa Margarita, California at the moment?

The PM10 concentration in Rancho Santa Margarita, California is 33.575 μg/m3 at the moment.

Stay updated with real-time air quality in Rancho Santa Margarita, 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

Rancho Santa Margarita, California

Last updated: ... (Local time)

Major air pollutants in Rancho Santa Margarita, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

11.72 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

33.58 μg/m³

155

255

425

605+

Ozone (O₃)

51.70 ppb

201

201+

Sulfur Dioxide (SO₂)

0.90 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

8.59 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.29 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Rancho Santa Margarita, California

Get Live Pollen Counts

Rancho Santa Margarita, California

Scroll To Air Quality Map

Track live Rancho Santa Margarita, California air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-07-22T00:00:00.000Z	40 \| good	2.66 \| good	11.228 \| good	42.972 \| good	0.556 \| good	3.285 \| good	0.183 \| good
2026-07-22T01:00:00.000Z	41 \| good	3.643 \| good	9.274 \| good	43.924 \| good	0.551 \| good	3.421 \| good	0.215 \| good
2026-07-22T02:00:00.000Z	35 \| good	3.826 \| good	10.29 \| good	37.952 \| good	0.562 \| good	6.241 \| good	0.183 \| good
2026-07-22T03:00:00.000Z	32 \| good	4.312 \| good	9.212 \| good	34.983 \| good	0.498 \| good	6.373 \| good	0.215 \| good
2026-07-22T04:00:00.000Z	33 \| good	5.602 \| good	13.151 \| good	31.98 \| good	0.441 \| good	6.429 \| good	0.247 \| good
2026-07-22T05:00:00.000Z	33 \| good	5.892 \| good	13.111 \| good	26.999 \| good	0.612 \| good	7.846 \| good	0.279 \| good
2026-07-22T06:00:00.000Z	27 \| good	4.794 \| good	11.106 \| good	24.014 \| good	0.486 \| good	10.195 \| good	0.31 \| good
2026-07-22T07:00:00.000Z	27 \| good	4.798 \| good	11.116 \| good	24.01 \| good	0.486 \| good	13.858 \| good	0.31 \| good
2026-07-22T08:00:00.000Z	27 \| good	4.903 \| good	12.113 \| good	19.023 \| good	0.459 \| good	15.039 \| good	0.287 \| good
2026-07-22T09:00:00.000Z	27 \| good	5.202 \| good	13.07 \| good	19.974 \| good	0.48 \| good	10.125 \| good	0.224 \| good
2026-07-22T10:00:00.000Z	33 \| good	5.593 \| good	13.062 \| good	15.983 \| good	0.431 \| good	10.932 \| good	0.224 \| good
2026-07-22T11:00:00.000Z	33 \| good	6.279 \| good	10.099 \| good	14.976 \| good	0.567 \| good	11.545 \| good	0.192 \| good
2026-07-22T12:00:00.000Z	33 \| good	6.388 \| good	11.094 \| good	13.979 \| good	0.456 \| good	11.077 \| good	0.244 \| good
2026-07-22T13:00:00.000Z	33 \| good	6.393 \| good	11.1 \| good	13.981 \| good	0.456 \| good	9.916 \| good	0.244 \| good
2026-07-22T14:00:00.000Z	38 \| good	6.697 \| good	9.208 \| good	12.02 \| good	0.47 \| good	9.753 \| good	0.392 \| good
2026-07-22T15:00:00.000Z	38 \| good	7.396 \| good	13.347 \| good	12.019 \| good	0.657 \| good	10.609 \| good	0.34 \| good
2026-07-22T16:00:00.000Z	49 \| good	8.69 \| good	13.398 \| good	13.047 \| good	0.723 \| good	11.827 \| good	0.3 \| good
2026-07-22T17:00:00.000Z	44 \| good	8.196 \| good	15.342 \| good	16.032 \| good	0.714 \| good	11.356 \| good	0.268 \| good
2026-07-22T18:00:00.000Z	38 \| good	6.52 \| good	12.488 \| good	21.005 \| good	0.694 \| good	9.115 \| good	0.268 \| good
2026-07-22T19:00:00.000Z	33 \| good	5.527 \| good	11.333 \| good	25.98 \| good	0.685 \| good	8.524 \| good	0.289 \| good
2026-07-22T20:00:00.000Z	30 \| good	5.213 \| good	12.219 \| good	31.993 \| good	0.757 \| good	10.302 \| good	0.289 \| good
2026-07-22T21:00:00.000Z	33 \| good	4.242 \| good	13.726 \| good	36.004 \| good	0.762 \| good	7.958 \| good	0.268 \| good
2026-07-22T22:00:00.000Z	33 \| good	3.157 \| good	15.457 \| good	36.026 \| good	0.773 \| good	7.595 \| good	0.256 \| good
2026-07-22T23:00:00.000Z	34 \| good	2.451 \| good	11.343 \| good	37.043 \| good	0.599 \| good	5.681 \| good	0.287 \| good
2026-07-23T00:00:00.000Z	36 \| good	3.926 \| good	13.289 \| good	39.003 \| good	0.673 \| good	7.033 \| good	0.256 \| good
2026-07-23T01:00:00.000Z	40 \| good	6.786 \| good	14.259 \| good	42.939 \| good	0.77 \| good	7.325 \| good	0.256 \| good
2026-07-23T02:00:00.000Z	38 \| good	6.879 \| good	15.185 \| good	37.963 \| good	0.783 \| good	6.716 \| good	0.287 \| good
2026-07-23T03:00:00.000Z	44 \| good	7.598 \| good	33.181 \| good	24.346 \| good	0.538 \| good	3.596 \| good	0.099 \| good
2026-07-23T04:00:00.000Z	27 \| good	5.303 \| good	19.107 \| good	27.045 \| good	0.665 \| good	7.435 \| good	0.287 \| good
2026-07-23T05:00:00.000Z	27 \| good	5.01 \| good	20.097 \| good	21.065 \| good	0.762 \| good	12.729 \| good	0.287 \| good
2026-07-23T06:00:00.000Z	27 \| good	5.21 \| good	22.087 \| good	21.033 \| good	0.644 \| good	5.09 \| good	0.319 \| good
2026-07-23T07:00:00.000Z	27 \| good	5.207 \| good	22.064 \| good	21.033 \| good	0.614 \| good	3.336 \| good	0.319 \| good
2026-07-23T08:00:00.000Z	44 \| good	7.679 \| good	23.275 \| good	20.996 \| good	0.553 \| good	7.536 \| good	0.3 \| good
2026-07-23T09:00:00.000Z	38 \| good	7.176 \| good	21.378 \| good	19.99 \| good	0.608 \| good	7.839 \| good	0.237 \| good
2026-07-23T10:00:00.000Z	33 \| good	6.295 \| good	20.466 \| good	18.997 \| good	0.558 \| good	8.973 \| good	0.257 \| good
2026-07-23T11:00:00.000Z	27 \| good	4.612 \| good	16.192 \| good	19.968 \| good	0.722 \| good	6.994 \| good	0.237 \| good
2026-07-23T12:00:00.000Z	27 \| good	5.008 \| good	15.178 \| good	19.972 \| good	0.542 \| good	9.146 \| good	0.272 \| good
2026-07-23T13:00:00.000Z	27 \| good	5.015 \| good	15.147 \| good	17.994 \| good	0.541 \| good	8.948 \| good	0.272 \| good
2026-07-23T14:00:00.000Z	17 \| good	3.447 \| good	8.46 \| good	17.963 \| good	0.629 \| good	10.856 \| good	0.435 \| good
2026-07-23T15:00:00.000Z	16 \| good	2.774 \| good	6.879 \| good	17.009 \| good	0.812 \| good	9.804 \| good	0.459 \| good
2026-07-23T16:00:00.000Z	22 \| good	3.7 \| good	10.97 \| good	17.013 \| good	0.857 \| good	15.157 \| good	0.412 \| good
2026-07-23T17:00:00.000Z	27 \| good	4.758 \| good	20.007 \| good	25.029 \| good	0.779 \| good	9.64 \| good	0.348 \| good
2026-07-23T18:00:00.000Z	49 \| good	8.958 \| good	25.847 \| good	35.972 \| good	0.829 \| good	10.046 \| good	0.349 \| good
2026-07-23T19:00:00.000Z	54 \| moderate	10.749 \| good	31.766 \| good	44.968 \| good	0.764 \| good	9.424 \| good	0.322 \| good
2026-07-23T20:00:00.000Z	56 \| moderate	11.612 \| good	32.352 \| good	50.938 \| good	0.713 \| good	7.194 \| good	0.308 \| good
2026-07-23T21:00:00.000Z	56 \| moderate	12.302 \| fine	31.394 \| good	50.015 \| good	0.754 \| good	8.99 \| good	0.289 \| good
2026-07-23T22:00:00.000Z	56 \| moderate	11.504 \| good	30.22 \| good	47.084 \| good	0.908 \| good	8.474 \| good	0.288 \| good
2026-07-23T23:00:00.000Z	56 \| moderate	11.721 \| good	33.575 \| good	51.702 \| good	0.902 \| good	8.592 \| good	0.293 \| good
2026-07-24T00:00:00.000Z	71 \| moderate	17.333 \| fine	77.29 \| fine	61.037 \| fine	0.805 \| good	1.777 \| good	0.104 \| good
2026-07-24T01:00:00.000Z	64 \| moderate	15.554 \| fine	69.433 \| fine	53.71 \| good	0.797 \| good	2.276 \| good	0.106 \| good
2026-07-24T02:00:00.000Z	62 \| moderate	15.031 \| fine	67.614 \| fine	48.421 \| good	0.741 \| good	3.2 \| good	0.107 \| good
2026-07-24T03:00:00.000Z	54 \| moderate	11.043 \| good	48.729 \| good	39.974 \| good	0.652 \| good	4.337 \| good	0.107 \| good
2026-07-24T04:00:00.000Z	54 \| moderate	10.643 \| good	46.977 \| good	36.52 \| good	0.587 \| good	4.798 \| good	0.107 \| good
2026-07-24T05:00:00.000Z	56 \| moderate	11.56 \| good	50.891 \| good	34.916 \| good	0.536 \| good	4.945 \| good	0.105 \| good
2026-07-24T06:00:00.000Z	56 \| moderate	11.721 \| good	51.726 \| good	32.297 \| good	0.491 \| good	5.198 \| good	0.105 \| good
2026-07-24T07:00:00.000Z	58 \| moderate	12.588 \| fine	56.029 \| fine	30.466 \| good	0.44 \| good	5.38 \| good	0.105 \| good
2026-07-24T08:00:00.000Z	62 \| moderate	14.53 \| fine	65.09 \| fine	28.693 \| good	0.422 \| good	5.052 \| good	0.104 \| good
2026-07-24T09:00:00.000Z	60 \| moderate	13.763 \| fine	61.389 \| fine	27.296 \| good	0.388 \| good	4.994 \| good	0.104 \| good
2026-07-24T10:00:00.000Z	60 \| moderate	14.313 \| fine	63.82 \| fine	25.574 \| good	0.393 \| good	5.458 \| good	0.105 \| good
2026-07-24T11:00:00.000Z	60 \| moderate	14.004 \| fine	62.922 \| fine	24.45 \| good	0.41 \| good	6.196 \| good	0.108 \| good
2026-07-24T12:00:00.000Z	64 \| moderate	16.387 \| fine	72.723 \| fine	23.501 \| good	0.428 \| good	6.827 \| good	0.111 \| good
2026-07-24T13:00:00.000Z	66 \| moderate	16.795 \| fine	74.709 \| fine	20.172 \| good	0.443 \| good	7.299 \| good	0.115 \| good
2026-07-24T14:00:00.000Z	67 \| moderate	17.611 \| fine	77.734 \| fine	24.716 \| good	0.447 \| good	6.003 \| good	0.116 \| good
2026-07-24T15:00:00.000Z	69 \| moderate	19.43 \| fine	85.331 \| fine	32.887 \| good	0.471 \| good	3.969 \| good	0.107 \| good
2026-07-24T16:00:00.000Z	71 \| moderate	19.65 \| fine	86.511 \| fine	42.36 \| good	0.502 \| good	3.16 \| good	0.104 \| good
2026-07-24T17:00:00.000Z	69 \| moderate	19.464 \| fine	85.484 \| fine	50.959 \| good	0.542 \| good	2.551 \| good	0.103 \| good
2026-07-24T18:00:00.000Z	66 \| moderate	16.795 \| fine	75.013 \| fine	53.473 \| good	0.567 \| good	1.99 \| good	0.102 \| good
2026-07-24T19:00:00.000Z	62 \| moderate	15.343 \| fine	68.276 \| fine	51.787 \| good	0.554 \| good	1.491 \| good	0.1 \| good
2026-07-24T20:00:00.000Z	58 \| moderate	13.297 \| fine	60.089 \| fine	50.721 \| good	0.528 \| good	1.197 \| good	0.097 \| good
2026-07-24T21:00:00.000Z	52 \| moderate	10.02 \| good	44.383 \| good	49.44 \| good	0.498 \| good	1.094 \| good	0.095 \| good
2026-07-24T22:00:00.000Z	52 \| moderate	10.453 \| good	46.175 \| good	47.169 \| good	0.471 \| good	1.092 \| good	0.094 \| good
2026-07-24T23:00:00.000Z	49 \| good	9.332 \| good	41.591 \| good	44.452 \| good	0.443 \| good	1.176 \| good	0.094 \| good
2026-07-25T00:00:00.000Z	49 \| good	8.982 \| good	39.856 \| good	42.527 \| good	0.42 \| good	1.353 \| good	0.094 \| good
2026-07-25T01:00:00.000Z	49 \| good	9.247 \| good	41.293 \| good	38.504 \| good	0.405 \| good	1.675 \| good	0.094 \| good
2026-07-25T02:00:00.000Z	49 \| good	9.119 \| good	40.701 \| good	34.461 \| good	0.392 \| good	2.314 \| good	0.095 \| good
2026-07-25T03:00:00.000Z	54 \| moderate	10.51 \| good	46.765 \| good	31.599 \| good	0.386 \| good	3.227 \| good	0.096 \| good
2026-07-25T04:00:00.000Z	44 \| good	8.273 \| good	36.292 \| good	28.622 \| good	0.4 \| good	3.866 \| good	0.097 \| good
2026-07-25T05:00:00.000Z	44 \| good	8.331 \| good	36.374 \| good	26.526 \| good	0.406 \| good	4.077 \| good	0.097 \| good
2026-07-25T06:00:00.000Z	49 \| good	9.469 \| good	42.024 \| good	24.141 \| good	0.412 \| good	4.545 \| good	0.098 \| good
2026-07-25T07:00:00.000Z	54 \| moderate	10.78 \| good	47.714 \| good	23.105 \| good	0.412 \| good	4.966 \| good	0.099 \| good
2026-07-25T08:00:00.000Z	56 \| moderate	11.955 \| good	53.522 \| good	20.941 \| good	0.406 \| good	4.888 \| good	0.099 \| good
2026-07-25T09:00:00.000Z	52 \| moderate	10.362 \| good	46.067 \| good	19.154 \| good	0.409 \| good	5.519 \| good	0.102 \| good
2026-07-25T10:00:00.000Z	52 \| moderate	10.108 \| good	44.683 \| good	17.506 \| good	0.423 \| good	6.34 \| good	0.105 \| good
2026-07-25T11:00:00.000Z	54 \| moderate	10.615 \| good	46.889 \| good	15.596 \| good	0.439 \| good	7.366 \| good	0.109 \| good
2026-07-25T12:00:00.000Z	58 \| moderate	13.094 \| fine	59.201 \| fine	14.876 \| good	0.449 \| good	8.533 \| good	0.114 \| good
2026-07-25T13:00:00.000Z	60 \| moderate	14.364 \| fine	63.704 \| fine	14.412 \| good	0.455 \| good	9.339 \| good	0.12 \| good
2026-07-25T14:00:00.000Z	66 \| moderate	16.83 \| fine	75.293 \| fine	16.653 \| good	0.459 \| good	8.361 \| good	0.125 \| good
2026-07-25T15:00:00.000Z	67 \| moderate	18.26 \| fine	80.077 \| fine	25.113 \| good	0.496 \| good	4.426 \| good	0.106 \| good
2026-07-25T16:00:00.000Z	69 \| moderate	18.674 \| fine	82.549 \| fine	37.544 \| good	0.514 \| good	3.513 \| good	0.103 \| good
2026-07-25T17:00:00.000Z	71 \| moderate	20.37 \| fine	88.953 \| fine	49.734 \| good	0.533 \| good	2.904 \| good	0.102 \| good
2026-07-25T18:00:00.000Z	73 \| moderate	20.566 \| fine	90.625 \| fine	56.022 \| fine	0.527 \| good	2.297 \| good	0.1 \| good
2026-07-25T19:00:00.000Z	71 \| moderate	20.299 \| fine	89.276 \| fine	59.012 \| fine	0.51 \| good	1.68 \| good	0.099 \| good
2026-07-25T20:00:00.000Z	67 \| moderate	17.77 \| fine	78.78 \| fine	60.445 \| fine	0.481 \| good	1.323 \| good	0.097 \| good
2026-07-25T21:00:00.000Z	61 \| moderate	14.113 \| fine	63.587 \| fine	58.454 \| fine	0.465 \| good	1.197 \| good	0.095 \| good
2026-07-25T22:00:00.000Z	58 \| moderate	12.821 \| fine	57.379 \| fine	53.246 \| good	0.464 \| good	1.168 \| good	0.095 \| good
2026-07-25T23:00:00.000Z	56 \| moderate	11.83 \| good	53.183 \| good	49.174 \| good	0.468 \| good	1.189 \| good	0.094 \| good

Rancho Santa Margarita

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Rancho Santa Margarita, California air quality map: Stay updated on AQI near you

0.29ppm

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

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Frequently asked questions

How often is air quality information updated for Rancho Santa Margarita, California?

The air quality information for Rancho Santa Margarita, California is updated every hour for accuracy.

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

In the past 24 hours, the air quality in Rancho Santa Margarita, California was at its worst at 10:00:00 on 2026-07-23.

When did Rancho Santa Margarita, California experience the best air quality in the last 24 hours?

In the last 24 hours, the best air quality in Rancho Santa Margarita, California was observed at 03:00:00 on 2026-07-23.

What is the AQI in Rancho Santa Margarita, California right now?

As of now, the AQI in Rancho Santa Margarita, California is 56, indicating Moderate conditions.

What is the most common type of pollution in Rancho Santa Margarita, California?

Rancho Santa Margarita, California air has the highest levels of PM2.5.

What should I do in case of poor air quality in Rancho Santa Margarita, California?

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

What is the PM_2.5 level in Rancho Santa Margarita, California at the moment?

PM_2.5 levels in Rancho Santa Margarita, California are currently 11.721 μg/m³.

What is the PM₁₀ level in Rancho Santa Margarita, California at the moment?

The PM₁₀ concentration in Rancho Santa Margarita, California is 33.575 μg/m³ at the moment.

What is the carbon monoxide (CO) level in Rancho Santa Margarita, California at the moment?

The current carbon monoxide (CO) concentration in Rancho Santa Margarita, California is 0.293 ppm.

What is the sulfur dioxide (SO₂) level in Rancho Santa Margarita, California at the moment?

Currently, Rancho Santa Margarita, California has a sulfur dioxide (SO₂) concentration of 0.902 ppb.

What is the ozone (O₃) level in Rancho Santa Margarita, California at the moment?

The current ozone (O₃) level in Rancho Santa Margarita, California at the moment is 51.702 ppm.

What is the nitrogen dioxide (NO₂) level in Rancho Santa Margarita, California at the moment?

Nitrogen dioxide (NO₂) level in Rancho Santa Margarita, California at the moment is 8.592 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-07-22T00:00:00.000Z	40 \| good	2.66 \| good	11.228 \| good	42.972 \| good	0.556 \| good	3.285 \| good	0.183 \| good
2026-07-22T01:00:00.000Z	41 \| good	3.643 \| good	9.274 \| good	43.924 \| good	0.551 \| good	3.421 \| good	0.215 \| good
2026-07-22T02:00:00.000Z	35 \| good	3.826 \| good	10.29 \| good	37.952 \| good	0.562 \| good	6.241 \| good	0.183 \| good
2026-07-22T03:00:00.000Z	32 \| good	4.312 \| good	9.212 \| good	34.983 \| good	0.498 \| good	6.373 \| good	0.215 \| good
2026-07-22T04:00:00.000Z	33 \| good	5.602 \| good	13.151 \| good	31.98 \| good	0.441 \| good	6.429 \| good	0.247 \| good
2026-07-22T05:00:00.000Z	33 \| good	5.892 \| good	13.111 \| good	26.999 \| good	0.612 \| good	7.846 \| good	0.279 \| good
2026-07-22T06:00:00.000Z	27 \| good	4.794 \| good	11.106 \| good	24.014 \| good	0.486 \| good	10.195 \| good	0.31 \| good
2026-07-22T07:00:00.000Z	27 \| good	4.798 \| good	11.116 \| good	24.01 \| good	0.486 \| good	13.858 \| good	0.31 \| good
2026-07-22T08:00:00.000Z	27 \| good	4.903 \| good	12.113 \| good	19.023 \| good	0.459 \| good	15.039 \| good	0.287 \| good
2026-07-22T09:00:00.000Z	27 \| good	5.202 \| good	13.07 \| good	19.974 \| good	0.48 \| good	10.125 \| good	0.224 \| good
2026-07-22T10:00:00.000Z	33 \| good	5.593 \| good	13.062 \| good	15.983 \| good	0.431 \| good	10.932 \| good	0.224 \| good
2026-07-22T11:00:00.000Z	33 \| good	6.279 \| good	10.099 \| good	14.976 \| good	0.567 \| good	11.545 \| good	0.192 \| good
2026-07-22T12:00:00.000Z	33 \| good	6.388 \| good	11.094 \| good	13.979 \| good	0.456 \| good	11.077 \| good	0.244 \| good
2026-07-22T13:00:00.000Z	33 \| good	6.393 \| good	11.1 \| good	13.981 \| good	0.456 \| good	9.916 \| good	0.244 \| good
2026-07-22T14:00:00.000Z	38 \| good	6.697 \| good	9.208 \| good	12.02 \| good	0.47 \| good	9.753 \| good	0.392 \| good
2026-07-22T15:00:00.000Z	38 \| good	7.396 \| good	13.347 \| good	12.019 \| good	0.657 \| good	10.609 \| good	0.34 \| good
2026-07-22T16:00:00.000Z	49 \| good	8.69 \| good	13.398 \| good	13.047 \| good	0.723 \| good	11.827 \| good	0.3 \| good
2026-07-22T17:00:00.000Z	44 \| good	8.196 \| good	15.342 \| good	16.032 \| good	0.714 \| good	11.356 \| good	0.268 \| good
2026-07-22T18:00:00.000Z	38 \| good	6.52 \| good	12.488 \| good	21.005 \| good	0.694 \| good	9.115 \| good	0.268 \| good
2026-07-22T19:00:00.000Z	33 \| good	5.527 \| good	11.333 \| good	25.98 \| good	0.685 \| good	8.524 \| good	0.289 \| good
2026-07-22T20:00:00.000Z	30 \| good	5.213 \| good	12.219 \| good	31.993 \| good	0.757 \| good	10.302 \| good	0.289 \| good
2026-07-22T21:00:00.000Z	33 \| good	4.242 \| good	13.726 \| good	36.004 \| good	0.762 \| good	7.958 \| good	0.268 \| good
2026-07-22T22:00:00.000Z	33 \| good	3.157 \| good	15.457 \| good	36.026 \| good	0.773 \| good	7.595 \| good	0.256 \| good
2026-07-22T23:00:00.000Z	34 \| good	2.451 \| good	11.343 \| good	37.043 \| good	0.599 \| good	5.681 \| good	0.287 \| good
2026-07-23T00:00:00.000Z	36 \| good	3.926 \| good	13.289 \| good	39.003 \| good	0.673 \| good	7.033 \| good	0.256 \| good
2026-07-23T01:00:00.000Z	40 \| good	6.786 \| good	14.259 \| good	42.939 \| good	0.77 \| good	7.325 \| good	0.256 \| good
2026-07-23T02:00:00.000Z	38 \| good	6.879 \| good	15.185 \| good	37.963 \| good	0.783 \| good	6.716 \| good	0.287 \| good
2026-07-23T03:00:00.000Z	44 \| good	7.598 \| good	33.181 \| good	24.346 \| good	0.538 \| good	3.596 \| good	0.099 \| good
2026-07-23T04:00:00.000Z	27 \| good	5.303 \| good	19.107 \| good	27.045 \| good	0.665 \| good	7.435 \| good	0.287 \| good
2026-07-23T05:00:00.000Z	27 \| good	5.01 \| good	20.097 \| good	21.065 \| good	0.762 \| good	12.729 \| good	0.287 \| good
2026-07-23T06:00:00.000Z	27 \| good	5.21 \| good	22.087 \| good	21.033 \| good	0.644 \| good	5.09 \| good	0.319 \| good
2026-07-23T07:00:00.000Z	27 \| good	5.207 \| good	22.064 \| good	21.033 \| good	0.614 \| good	3.336 \| good	0.319 \| good
2026-07-23T08:00:00.000Z	44 \| good	7.679 \| good	23.275 \| good	20.996 \| good	0.553 \| good	7.536 \| good	0.3 \| good
2026-07-23T09:00:00.000Z	38 \| good	7.176 \| good	21.378 \| good	19.99 \| good	0.608 \| good	7.839 \| good	0.237 \| good
2026-07-23T10:00:00.000Z	33 \| good	6.295 \| good	20.466 \| good	18.997 \| good	0.558 \| good	8.973 \| good	0.257 \| good
2026-07-23T11:00:00.000Z	27 \| good	4.612 \| good	16.192 \| good	19.968 \| good	0.722 \| good	6.994 \| good	0.237 \| good
2026-07-23T12:00:00.000Z	27 \| good	5.008 \| good	15.178 \| good	19.972 \| good	0.542 \| good	9.146 \| good	0.272 \| good
2026-07-23T13:00:00.000Z	27 \| good	5.015 \| good	15.147 \| good	17.994 \| good	0.541 \| good	8.948 \| good	0.272 \| good
2026-07-23T14:00:00.000Z	17 \| good	3.447 \| good	8.46 \| good	17.963 \| good	0.629 \| good	10.856 \| good	0.435 \| good
2026-07-23T15:00:00.000Z	16 \| good	2.774 \| good	6.879 \| good	17.009 \| good	0.812 \| good	9.804 \| good	0.459 \| good
2026-07-23T16:00:00.000Z	22 \| good	3.7 \| good	10.97 \| good	17.013 \| good	0.857 \| good	15.157 \| good	0.412 \| good
2026-07-23T17:00:00.000Z	27 \| good	4.758 \| good	20.007 \| good	25.029 \| good	0.779 \| good	9.64 \| good	0.348 \| good
2026-07-23T18:00:00.000Z	49 \| good	8.958 \| good	25.847 \| good	35.972 \| good	0.829 \| good	10.046 \| good	0.349 \| good
2026-07-23T19:00:00.000Z	54 \| moderate	10.749 \| good	31.766 \| good	44.968 \| good	0.764 \| good	9.424 \| good	0.322 \| good
2026-07-23T20:00:00.000Z	56 \| moderate	11.612 \| good	32.352 \| good	50.938 \| good	0.713 \| good	7.194 \| good	0.308 \| good
2026-07-23T21:00:00.000Z	56 \| moderate	12.302 \| fine	31.394 \| good	50.015 \| good	0.754 \| good	8.99 \| good	0.289 \| good
2026-07-23T22:00:00.000Z	56 \| moderate	11.504 \| good	30.22 \| good	47.084 \| good	0.908 \| good	8.474 \| good	0.288 \| good
2026-07-23T23:00:00.000Z	56 \| moderate	11.721 \| good	33.575 \| good	51.702 \| good	0.902 \| good	8.592 \| good	0.293 \| good
2026-07-24T00:00:00.000Z	71 \| moderate	17.333 \| fine	77.29 \| fine	61.037 \| fine	0.805 \| good	1.777 \| good	0.104 \| good
2026-07-24T01:00:00.000Z	64 \| moderate	15.554 \| fine	69.433 \| fine	53.71 \| good	0.797 \| good	2.276 \| good	0.106 \| good
2026-07-24T02:00:00.000Z	62 \| moderate	15.031 \| fine	67.614 \| fine	48.421 \| good	0.741 \| good	3.2 \| good	0.107 \| good
2026-07-24T03:00:00.000Z	54 \| moderate	11.043 \| good	48.729 \| good	39.974 \| good	0.652 \| good	4.337 \| good	0.107 \| good
2026-07-24T04:00:00.000Z	54 \| moderate	10.643 \| good	46.977 \| good	36.52 \| good	0.587 \| good	4.798 \| good	0.107 \| good
2026-07-24T05:00:00.000Z	56 \| moderate	11.56 \| good	50.891 \| good	34.916 \| good	0.536 \| good	4.945 \| good	0.105 \| good
2026-07-24T06:00:00.000Z	56 \| moderate	11.721 \| good	51.726 \| good	32.297 \| good	0.491 \| good	5.198 \| good	0.105 \| good
2026-07-24T07:00:00.000Z	58 \| moderate	12.588 \| fine	56.029 \| fine	30.466 \| good	0.44 \| good	5.38 \| good	0.105 \| good
2026-07-24T08:00:00.000Z	62 \| moderate	14.53 \| fine	65.09 \| fine	28.693 \| good	0.422 \| good	5.052 \| good	0.104 \| good
2026-07-24T09:00:00.000Z	60 \| moderate	13.763 \| fine	61.389 \| fine	27.296 \| good	0.388 \| good	4.994 \| good	0.104 \| good
2026-07-24T10:00:00.000Z	60 \| moderate	14.313 \| fine	63.82 \| fine	25.574 \| good	0.393 \| good	5.458 \| good	0.105 \| good
2026-07-24T11:00:00.000Z	60 \| moderate	14.004 \| fine	62.922 \| fine	24.45 \| good	0.41 \| good	6.196 \| good	0.108 \| good
2026-07-24T12:00:00.000Z	64 \| moderate	16.387 \| fine	72.723 \| fine	23.501 \| good	0.428 \| good	6.827 \| good	0.111 \| good
2026-07-24T13:00:00.000Z	66 \| moderate	16.795 \| fine	74.709 \| fine	20.172 \| good	0.443 \| good	7.299 \| good	0.115 \| good
2026-07-24T14:00:00.000Z	67 \| moderate	17.611 \| fine	77.734 \| fine	24.716 \| good	0.447 \| good	6.003 \| good	0.116 \| good
2026-07-24T15:00:00.000Z	69 \| moderate	19.43 \| fine	85.331 \| fine	32.887 \| good	0.471 \| good	3.969 \| good	0.107 \| good
2026-07-24T16:00:00.000Z	71 \| moderate	19.65 \| fine	86.511 \| fine	42.36 \| good	0.502 \| good	3.16 \| good	0.104 \| good
2026-07-24T17:00:00.000Z	69 \| moderate	19.464 \| fine	85.484 \| fine	50.959 \| good	0.542 \| good	2.551 \| good	0.103 \| good
2026-07-24T18:00:00.000Z	66 \| moderate	16.795 \| fine	75.013 \| fine	53.473 \| good	0.567 \| good	1.99 \| good	0.102 \| good
2026-07-24T19:00:00.000Z	62 \| moderate	15.343 \| fine	68.276 \| fine	51.787 \| good	0.554 \| good	1.491 \| good	0.1 \| good
2026-07-24T20:00:00.000Z	58 \| moderate	13.297 \| fine	60.089 \| fine	50.721 \| good	0.528 \| good	1.197 \| good	0.097 \| good
2026-07-24T21:00:00.000Z	52 \| moderate	10.02 \| good	44.383 \| good	49.44 \| good	0.498 \| good	1.094 \| good	0.095 \| good
2026-07-24T22:00:00.000Z	52 \| moderate	10.453 \| good	46.175 \| good	47.169 \| good	0.471 \| good	1.092 \| good	0.094 \| good
2026-07-24T23:00:00.000Z	49 \| good	9.332 \| good	41.591 \| good	44.452 \| good	0.443 \| good	1.176 \| good	0.094 \| good
2026-07-25T00:00:00.000Z	49 \| good	8.982 \| good	39.856 \| good	42.527 \| good	0.42 \| good	1.353 \| good	0.094 \| good
2026-07-25T01:00:00.000Z	49 \| good	9.247 \| good	41.293 \| good	38.504 \| good	0.405 \| good	1.675 \| good	0.094 \| good
2026-07-25T02:00:00.000Z	49 \| good	9.119 \| good	40.701 \| good	34.461 \| good	0.392 \| good	2.314 \| good	0.095 \| good
2026-07-25T03:00:00.000Z	54 \| moderate	10.51 \| good	46.765 \| good	31.599 \| good	0.386 \| good	3.227 \| good	0.096 \| good
2026-07-25T04:00:00.000Z	44 \| good	8.273 \| good	36.292 \| good	28.622 \| good	0.4 \| good	3.866 \| good	0.097 \| good
2026-07-25T05:00:00.000Z	44 \| good	8.331 \| good	36.374 \| good	26.526 \| good	0.406 \| good	4.077 \| good	0.097 \| good
2026-07-25T06:00:00.000Z	49 \| good	9.469 \| good	42.024 \| good	24.141 \| good	0.412 \| good	4.545 \| good	0.098 \| good
2026-07-25T07:00:00.000Z	54 \| moderate	10.78 \| good	47.714 \| good	23.105 \| good	0.412 \| good	4.966 \| good	0.099 \| good
2026-07-25T08:00:00.000Z	56 \| moderate	11.955 \| good	53.522 \| good	20.941 \| good	0.406 \| good	4.888 \| good	0.099 \| good
2026-07-25T09:00:00.000Z	52 \| moderate	10.362 \| good	46.067 \| good	19.154 \| good	0.409 \| good	5.519 \| good	0.102 \| good
2026-07-25T10:00:00.000Z	52 \| moderate	10.108 \| good	44.683 \| good	17.506 \| good	0.423 \| good	6.34 \| good	0.105 \| good
2026-07-25T11:00:00.000Z	54 \| moderate	10.615 \| good	46.889 \| good	15.596 \| good	0.439 \| good	7.366 \| good	0.109 \| good
2026-07-25T12:00:00.000Z	58 \| moderate	13.094 \| fine	59.201 \| fine	14.876 \| good	0.449 \| good	8.533 \| good	0.114 \| good
2026-07-25T13:00:00.000Z	60 \| moderate	14.364 \| fine	63.704 \| fine	14.412 \| good	0.455 \| good	9.339 \| good	0.12 \| good
2026-07-25T14:00:00.000Z	66 \| moderate	16.83 \| fine	75.293 \| fine	16.653 \| good	0.459 \| good	8.361 \| good	0.125 \| good
2026-07-25T15:00:00.000Z	67 \| moderate	18.26 \| fine	80.077 \| fine	25.113 \| good	0.496 \| good	4.426 \| good	0.106 \| good
2026-07-25T16:00:00.000Z	69 \| moderate	18.674 \| fine	82.549 \| fine	37.544 \| good	0.514 \| good	3.513 \| good	0.103 \| good
2026-07-25T17:00:00.000Z	71 \| moderate	20.37 \| fine	88.953 \| fine	49.734 \| good	0.533 \| good	2.904 \| good	0.102 \| good
2026-07-25T18:00:00.000Z	73 \| moderate	20.566 \| fine	90.625 \| fine	56.022 \| fine	0.527 \| good	2.297 \| good	0.1 \| good
2026-07-25T19:00:00.000Z	71 \| moderate	20.299 \| fine	89.276 \| fine	59.012 \| fine	0.51 \| good	1.68 \| good	0.099 \| good
2026-07-25T20:00:00.000Z	67 \| moderate	17.77 \| fine	78.78 \| fine	60.445 \| fine	0.481 \| good	1.323 \| good	0.097 \| good
2026-07-25T21:00:00.000Z	61 \| moderate	14.113 \| fine	63.587 \| fine	58.454 \| fine	0.465 \| good	1.197 \| good	0.095 \| good
2026-07-25T22:00:00.000Z	58 \| moderate	12.821 \| fine	57.379 \| fine	53.246 \| good	0.464 \| good	1.168 \| good	0.095 \| good
2026-07-25T23:00:00.000Z	56 \| moderate	11.83 \| good	53.183 \| good	49.174 \| good	0.468 \| good	1.189 \| good	0.094 \| good

Live air quality index in Rancho Santa Margarita, California today

Major air pollutants in Rancho Santa Margarita, California

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Rancho Santa Margarita, California air quality forecast and history

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Rancho Santa Margarita, California air quality map: Stay updated on AQI near you

Air quality in nearby cities

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Frequently asked questions

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What is the PM2.5 level in Rancho Santa Margarita, California at the moment?

What is the PM10 level in Rancho Santa Margarita, California at the moment?

What is the carbon monoxide (CO) level in Rancho Santa Margarita, California at the moment?

What is the sulfur dioxide (SO2) level in Rancho Santa Margarita, California at the moment?

What is the ozone (O3) level in Rancho Santa Margarita, California at the moment?

What is the nitrogen dioxide (NO2) level in Rancho Santa Margarita, 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 Rancho Santa Margarita, California at the moment?

What is the PM₁₀ level in Rancho Santa Margarita, California at the moment?

What is the sulfur dioxide (SO₂) level in Rancho Santa Margarita, California at the moment?

What is the ozone (O₃) level in Rancho Santa Margarita, California at the moment?

What is the nitrogen dioxide (NO₂) level in Rancho Santa Margarita, California at the moment?