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 0.765 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 9.808 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 28.457 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)

10.26 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

28.59 μg/m³

155

255

425

605+

Ozone (O₃)

24.48 ppb

201

201+

Sulfur Dioxide (SO₂)

0.80 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

17.86 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.54 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
2026-08-16T18:00:00.000Z	52 \| moderate	9.601 \| good	20.328 \| good	34.501 \| good	0.697 \| good	5.942 \| good	0.316 \| good
2026-08-16T19:00:00.000Z	52 \| moderate	9.577 \| good	18.797 \| good	39.797 \| good	0.611 \| good	4.74 \| good	0.334 \| good
2026-08-16T20:00:00.000Z	52 \| moderate	9.917 \| good	21.224 \| good	45.033 \| good	0.588 \| good	4.913 \| good	0.303 \| good
2026-08-16T21:00:00.000Z	52 \| moderate	10.147 \| good	21.916 \| good	48.097 \| good	0.655 \| good	4.595 \| good	0.334 \| good
2026-08-16T22:00:00.000Z	49 \| good	8.849 \| good	20.303 \| good	50.261 \| good	0.695 \| good	4.515 \| good	0.303 \| good
2026-08-16T23:00:00.000Z	45 \| good	7.321 \| good	19.931 \| good	49.343 \| good	0.897 \| good	4.722 \| good	0.303 \| good
2026-08-17T00:00:00.000Z	48 \| good	7.74 \| good	19.515 \| good	52.047 \| good	0.822 \| good	5.048 \| good	0.334 \| good
2026-08-17T01:00:00.000Z	49 \| good	8.654 \| good	19.639 \| good	49.999 \| good	0.698 \| good	7.017 \| good	0.334 \| good
2026-08-17T02:00:00.000Z	52 \| moderate	9.958 \| good	20.958 \| good	47.121 \| good	0.687 \| good	8.137 \| good	0.334 \| good
2026-08-17T03:00:00.000Z	49 \| good	9.138 \| good	40.605 \| good	32.892 \| good	0.711 \| good	4.063 \| good	0.124 \| good
2026-08-17T04:00:00.000Z	49 \| good	9.407 \| good	19.525 \| good	39.86 \| good	0.515 \| good	7.567 \| good	0.38 \| good
2026-08-17T05:00:00.000Z	54 \| moderate	10.871 \| good	20.261 \| good	33.687 \| good	0.687 \| good	6.84 \| good	0.391 \| good
2026-08-17T06:00:00.000Z	49 \| good	9.347 \| good	20.878 \| good	29.726 \| good	0.483 \| good	6.632 \| good	0.441 \| good
2026-08-17T07:00:00.000Z	49 \| good	9.457 \| good	20.814 \| good	30.207 \| good	0.477 \| good	6.515 \| good	0.441 \| good
2026-08-17T08:00:00.000Z	56 \| moderate	11.707 \| good	20.013 \| good	24.096 \| good	0.509 \| good	9.289 \| good	0.387 \| good
2026-08-17T09:00:00.000Z	52 \| moderate	9.595 \| good	21.441 \| good	22.776 \| good	0.463 \| good	8.08 \| good	0.271 \| good
2026-08-17T10:00:00.000Z	44 \| good	8.247 \| good	21.184 \| good	20.946 \| good	0.445 \| good	8.401 \| good	0.271 \| good
2026-08-17T11:00:00.000Z	44 \| good	7.868 \| good	17.763 \| good	18.815 \| good	0.599 \| good	8.183 \| good	0.271 \| good
2026-08-17T12:00:00.000Z	27 \| good	4.855 \| good	17.815 \| good	16.926 \| good	0.395 \| good	10.227 \| good	0.328 \| good
2026-08-17T13:00:00.000Z	27 \| good	4.826 \| good	18.125 \| good	16.852 \| good	0.4 \| good	9.613 \| good	0.328 \| good
2026-08-17T14:00:00.000Z	56 \| moderate	12.044 \| good	22.855 \| good	14.344 \| good	0.476 \| good	11.915 \| good	0.503 \| good
2026-08-17T15:00:00.000Z	54 \| moderate	11.206 \| good	22.979 \| good	14.859 \| good	0.646 \| good	10.147 \| good	0.524 \| good
2026-08-17T16:00:00.000Z	54 \| moderate	10.552 \| good	24.534 \| good	18.456 \| good	0.803 \| good	12.271 \| good	0.53 \| good
2026-08-17T17:00:00.000Z	54 \| moderate	11.252 \| good	27.305 \| good	25.585 \| good	0.816 \| good	11.06 \| good	0.457 \| good
2026-08-17T18:00:00.000Z	54 \| moderate	10.93 \| good	25.169 \| good	33.858 \| good	0.784 \| good	9.979 \| good	0.413 \| good
2026-08-17T19:00:00.000Z	52 \| moderate	10.469 \| good	28.562 \| good	41.716 \| good	0.763 \| good	7.851 \| good	0.36 \| good
2026-08-17T20:00:00.000Z	44 \| good	8.384 \| good	26.717 \| good	45.194 \| good	0.649 \| good	7.004 \| good	0.36 \| good
2026-08-17T21:00:00.000Z	69 \| moderate	19.46 \| fine	27.073 \| good	50.131 \| good	0.616 \| good	4.937 \| good	0.306 \| good
2026-08-17T22:00:00.000Z	64 \| moderate	15.726 \| fine	25.712 \| good	50.755 \| good	0.817 \| good	4.943 \| good	0.316 \| good
2026-08-17T23:00:00.000Z	58 \| moderate	13.044 \| fine	26.501 \| good	53.732 \| good	0.884 \| good	8.291 \| good	0.348 \| good
2026-08-18T00:00:00.000Z	77 \| moderate	12.476 \| fine	28.65 \| good	63.273 \| fine	0.885 \| good	8.299 \| good	0.348 \| good
2026-08-18T01:00:00.000Z	56 \| moderate	11.997 \| good	28.433 \| good	54.082 \| good	1.079 \| good	9.281 \| good	0.411 \| good
2026-08-18T02:00:00.000Z	54 \| moderate	10.697 \| good	28.288 \| good	50.637 \| good	0.778 \| good	12.289 \| good	0.38 \| good
2026-08-18T03:00:00.000Z	56 \| moderate	12.057 \| good	29.544 \| good	43.541 \| good	0.675 \| good	10.606 \| good	0.334 \| good
2026-08-18T04:00:00.000Z	54 \| moderate	10.899 \| good	27.321 \| good	39.628 \| good	0.596 \| good	9.238 \| good	0.334 \| good
2026-08-18T05:00:00.000Z	56 \| moderate	11.507 \| good	27.833 \| good	32.183 \| good	0.711 \| good	13.154 \| good	0.334 \| good
2026-08-18T06:00:00.000Z	56 \| moderate	12.156 \| fine	26.93 \| good	25.426 \| good	0.538 \| good	8.041 \| good	0.409 \| good
2026-08-18T07:00:00.000Z	56 \| moderate	12.207 \| fine	26.516 \| good	25.601 \| good	0.539 \| good	8.393 \| good	0.409 \| good
2026-08-18T08:00:00.000Z	54 \| moderate	10.902 \| good	27.219 \| good	20.532 \| good	0.555 \| good	10.292 \| good	0.346 \| good
2026-08-18T09:00:00.000Z	52 \| moderate	10.474 \| good	24.208 \| good	14.889 \| good	0.484 \| good	12.765 \| good	0.336 \| good
2026-08-18T10:00:00.000Z	54 \| moderate	10.937 \| good	24.345 \| good	11.526 \| good	0.483 \| good	12.341 \| good	0.361 \| good
2026-08-18T11:00:00.000Z	52 \| moderate	9.888 \| good	20.937 \| good	12.63 \| good	0.679 \| good	12.45 \| good	0.329 \| good
2026-08-18T12:00:00.000Z	44 \| good	8.013 \| good	19.617 \| good	12.307 \| good	0.474 \| good	10.385 \| good	0.383 \| good
2026-08-18T13:00:00.000Z	44 \| good	8.06 \| good	21.052 \| good	12.344 \| good	0.476 \| good	11.048 \| good	0.383 \| good
2026-08-18T14:00:00.000Z	44 \| good	8.241 \| good	23.773 \| good	12.023 \| good	0.636 \| good	17.331 \| good	0.69 \| good
2026-08-18T15:00:00.000Z	49 \| good	9.394 \| good	28.597 \| good	16.589 \| good	0.82 \| good	14.035 \| good	0.601 \| good
2026-08-18T16:00:00.000Z	52 \| moderate	10.26 \| good	28.59 \| good	24.478 \| good	0.8 \| good	17.862 \| good	0.542 \| good
2026-08-18T17:00:00.000Z	52 \| moderate	9.808 \| good	28.457 \| good	30.541 \| good	0.765 \| good	13.138 \| good	0.467 \| good
2026-08-18T17:00:00.000Z	52 \| moderate	10.26 \| good	28.59 \| good	24.478 \| good	0.8 \| good	17.862 \| good	0.542 \| good
2026-08-18T18:00:00.000Z	52 \| moderate	10.29 \| good	45.86 \| good	50.679 \| good	0.702 \| good	2.848 \| good	0.123 \| good
2026-08-18T19:00:00.000Z	54 \| moderate	7.529 \| good	33.328 \| good	56.26 \| fine	0.707 \| good	2.197 \| good	0.121 \| good
2026-08-18T20:00:00.000Z	71 \| moderate	6.777 \| good	29.918 \| good	61.142 \| fine	0.682 \| good	1.68 \| good	0.119 \| good
2026-08-18T21:00:00.000Z	84 \| moderate	6.686 \| good	29.666 \| good	64.883 \| fine	0.645 \| good	1.373 \| good	0.118 \| good
2026-08-18T22:00:00.000Z	90 \| moderate	8.191 \| good	35.86 \| good	66.718 \| fine	0.615 \| good	1.251 \| good	0.117 \| good
2026-08-18T23:00:00.000Z	71 \| moderate	7.783 \| good	34.39 \| good	61.009 \| fine	0.595 \| good	1.282 \| good	0.116 \| good
2026-08-19T00:00:00.000Z	48 \| good	6.998 \| good	30.887 \| good	51.54 \| good	0.588 \| good	1.533 \| good	0.116 \| good
2026-08-19T01:00:00.000Z	43 \| good	6.766 \| good	30.129 \| good	45.508 \| good	0.608 \| good	2.22 \| good	0.119 \| good
2026-08-19T02:00:00.000Z	44 \| good	8.011 \| good	35.303 \| good	41.346 \| good	0.629 \| good	3.477 \| good	0.123 \| good
2026-08-19T03:00:00.000Z	38 \| good	7.17 \| good	31.614 \| good	36.298 \| good	0.607 \| good	4.88 \| good	0.129 \| good
2026-08-19T04:00:00.000Z	49 \| good	8.999 \| good	39.878 \| good	33.42 \| good	0.571 \| good	5.861 \| good	0.133 \| good
2026-08-19T05:00:00.000Z	49 \| good	8.758 \| good	38.823 \| good	29.582 \| good	0.526 \| good	6.46 \| good	0.136 \| good
2026-08-19T06:00:00.000Z	49 \| good	9.04 \| good	40.132 \| good	27.251 \| good	0.481 \| good	6.924 \| good	0.139 \| good
2026-08-19T07:00:00.000Z	49 \| good	9.244 \| good	41.049 \| good	25.685 \| good	0.446 \| good	7.635 \| good	0.143 \| good
2026-08-19T08:00:00.000Z	54 \| moderate	10.782 \| good	47.958 \| good	24.462 \| good	0.434 \| good	7.846 \| good	0.146 \| good
2026-08-19T09:00:00.000Z	54 \| moderate	10.876 \| good	48.232 \| good	23.502 \| good	0.425 \| good	8.106 \| good	0.148 \| good
2026-08-19T10:00:00.000Z	54 \| moderate	10.976 \| good	48.695 \| good	22.165 \| good	0.426 \| good	8.374 \| good	0.15 \| good
2026-08-19T11:00:00.000Z	58 \| moderate	12.69 \| fine	57.027 \| fine	20.684 \| good	0.445 \| good	9.116 \| good	0.155 \| good
2026-08-19T12:00:00.000Z	64 \| moderate	15.856 \| fine	70.265 \| fine	17.484 \| good	0.458 \| good	10.092 \| good	0.16 \| good
2026-08-19T13:00:00.000Z	62 \| moderate	15.124 \| fine	67.665 \| fine	17.444 \| good	0.465 \| good	10.874 \| good	0.166 \| good
2026-08-19T14:00:00.000Z	67 \| moderate	17.669 \| fine	78.306 \| fine	19.814 \| good	0.46 \| good	10.133 \| good	0.174 \| good
2026-08-19T15:00:00.000Z	67 \| moderate	17.545 \| fine	77.828 \| fine	30.805 \| good	0.495 \| good	5.419 \| good	0.153 \| good
2026-08-19T16:00:00.000Z	66 \| moderate	16.6 \| fine	74.167 \| fine	45.285 \| good	0.542 \| good	3.932 \| good	0.143 \| good
2026-08-19T17:00:00.000Z	58 \| moderate	13.271 \| fine	59.36 \| fine	56.004 \| fine	0.586 \| good	3.269 \| good	0.141 \| good
2026-08-19T18:00:00.000Z	80 \| moderate	11.488 \| good	51.385 \| good	64.136 \| fine	0.647 \| good	2.692 \| good	0.138 \| good
2026-08-19T19:00:00.000Z	101 \| sensitive	11.543 \| good	51.44 \| good	71.143 \| moderate	0.701 \| good	2.05 \| good	0.136 \| good
2026-08-19T20:00:00.000Z	122 \| sensitive	12.146 \| fine	54.206 \| good	76.969 \| moderate	0.703 \| good	1.488 \| good	0.135 \| good
2026-08-19T21:00:00.000Z	122 \| sensitive	12.214 \| fine	55.122 \| fine	77.275 \| moderate	0.728 \| good	1.279 \| good	0.136 \| good
2026-08-19T22:00:00.000Z	115 \| sensitive	11.452 \| good	51.105 \| good	74.844 \| moderate	0.767 \| good	1.293 \| good	0.139 \| good
2026-08-19T23:00:00.000Z	87 \| moderate	11.197 \| good	49.666 \| good	65.87 \| fine	0.792 \| good	1.411 \| good	0.142 \| good
2026-08-20T00:00:00.000Z	49 \| good	7.885 \| good	34.471 \| good	52.741 \| good	0.836 \| good	1.717 \| good	0.147 \| good
2026-08-20T01:00:00.000Z	44 \| good	8.297 \| good	36.473 \| good	46.536 \| good	0.815 \| good	2.521 \| good	0.155 \| good
2026-08-20T02:00:00.000Z	49 \| good	9.025 \| good	40.029 \| good	43.402 \| good	0.805 \| good	3.762 \| good	0.162 \| good
2026-08-20T03:00:00.000Z	44 \| good	8.301 \| good	36.64 \| good	38.004 \| good	0.732 \| good	4.963 \| good	0.167 \| good
2026-08-20T04:00:00.000Z	44 \| good	8.348 \| good	36.712 \| good	35.294 \| good	0.643 \| good	5.659 \| good	0.17 \| good
2026-08-20T05:00:00.000Z	49 \| good	8.537 \| good	37.348 \| good	32.89 \| good	0.573 \| good	6.269 \| good	0.17 \| good
2026-08-20T06:00:00.000Z	54 \| moderate	10.521 \| good	46.838 \| good	29.163 \| good	0.504 \| good	6.757 \| good	0.169 \| good
2026-08-20T07:00:00.000Z	52 \| moderate	10.091 \| good	44.756 \| good	26.878 \| good	0.493 \| good	7.073 \| good	0.168 \| good
2026-08-20T08:00:00.000Z	56 \| moderate	11.73 \| good	51.84 \| good	23.705 \| good	0.492 \| good	7.347 \| good	0.167 \| good
2026-08-20T09:00:00.000Z	56 \| moderate	12.383 \| fine	56.219 \| fine	21.63 \| good	0.516 \| good	7.689 \| good	0.166 \| good
2026-08-20T10:00:00.000Z	58 \| moderate	12.657 \| fine	56.334 \| fine	18.787 \| good	0.535 \| good	8.073 \| good	0.165 \| good
2026-08-20T11:00:00.000Z	60 \| moderate	13.515 \| fine	61.007 \| fine	17.654 \| good	0.546 \| good	8.456 \| good	0.165 \| good
2026-08-20T12:00:00.000Z	64 \| moderate	16.406 \| fine	73.274 \| fine	14.954 \| good	0.551 \| good	8.695 \| good	0.165 \| good
2026-08-20T13:00:00.000Z	66 \| moderate	16.737 \| fine	74.483 \| fine	13.207 \| good	0.546 \| good	9.26 \| good	0.166 \| good
2026-08-20T14:00:00.000Z	73 \| moderate	21.08 \| fine	92.364 \| fine	16.82 \| good	0.53 \| good	8.779 \| good	0.17 \| good
2026-08-20T15:00:00.000Z	75 \| moderate	21.557 \| fine	94.686 \| fine	31.162 \| good	0.553 \| good	5.919 \| good	0.156 \| good
2026-08-20T16:00:00.000Z	75 \| moderate	22.055 \| fine	96.997 \| fine	43.864 \| good	0.612 \| good	4.158 \| good	0.144 \| good
2026-08-20T17:00:00.000Z	69 \| moderate	19.302 \| fine	84.858 \| fine	56.456 \| fine	0.715 \| good	3.196 \| good	0.14 \| good

Rancho Santa Margarita

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

0.55ppm

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 12:00:00 on 2026-08-18.

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 02:00:00 on 2026-08-18.

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

As of now, the AQI in Rancho Santa Margarita, California is 52, 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 9.808 μg/m³.

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

The PM₁₀ concentration in Rancho Santa Margarita, California is 28.457 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 0.467 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 0.765 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 30.541 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 13.138 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-08-16T18:00:00.000Z	52 \| moderate	9.601 \| good	20.328 \| good	34.501 \| good	0.697 \| good	5.942 \| good	0.316 \| good
2026-08-16T19:00:00.000Z	52 \| moderate	9.577 \| good	18.797 \| good	39.797 \| good	0.611 \| good	4.74 \| good	0.334 \| good
2026-08-16T20:00:00.000Z	52 \| moderate	9.917 \| good	21.224 \| good	45.033 \| good	0.588 \| good	4.913 \| good	0.303 \| good
2026-08-16T21:00:00.000Z	52 \| moderate	10.147 \| good	21.916 \| good	48.097 \| good	0.655 \| good	4.595 \| good	0.334 \| good
2026-08-16T22:00:00.000Z	49 \| good	8.849 \| good	20.303 \| good	50.261 \| good	0.695 \| good	4.515 \| good	0.303 \| good
2026-08-16T23:00:00.000Z	45 \| good	7.321 \| good	19.931 \| good	49.343 \| good	0.897 \| good	4.722 \| good	0.303 \| good
2026-08-17T00:00:00.000Z	48 \| good	7.74 \| good	19.515 \| good	52.047 \| good	0.822 \| good	5.048 \| good	0.334 \| good
2026-08-17T01:00:00.000Z	49 \| good	8.654 \| good	19.639 \| good	49.999 \| good	0.698 \| good	7.017 \| good	0.334 \| good
2026-08-17T02:00:00.000Z	52 \| moderate	9.958 \| good	20.958 \| good	47.121 \| good	0.687 \| good	8.137 \| good	0.334 \| good
2026-08-17T03:00:00.000Z	49 \| good	9.138 \| good	40.605 \| good	32.892 \| good	0.711 \| good	4.063 \| good	0.124 \| good
2026-08-17T04:00:00.000Z	49 \| good	9.407 \| good	19.525 \| good	39.86 \| good	0.515 \| good	7.567 \| good	0.38 \| good
2026-08-17T05:00:00.000Z	54 \| moderate	10.871 \| good	20.261 \| good	33.687 \| good	0.687 \| good	6.84 \| good	0.391 \| good
2026-08-17T06:00:00.000Z	49 \| good	9.347 \| good	20.878 \| good	29.726 \| good	0.483 \| good	6.632 \| good	0.441 \| good
2026-08-17T07:00:00.000Z	49 \| good	9.457 \| good	20.814 \| good	30.207 \| good	0.477 \| good	6.515 \| good	0.441 \| good
2026-08-17T08:00:00.000Z	56 \| moderate	11.707 \| good	20.013 \| good	24.096 \| good	0.509 \| good	9.289 \| good	0.387 \| good
2026-08-17T09:00:00.000Z	52 \| moderate	9.595 \| good	21.441 \| good	22.776 \| good	0.463 \| good	8.08 \| good	0.271 \| good
2026-08-17T10:00:00.000Z	44 \| good	8.247 \| good	21.184 \| good	20.946 \| good	0.445 \| good	8.401 \| good	0.271 \| good
2026-08-17T11:00:00.000Z	44 \| good	7.868 \| good	17.763 \| good	18.815 \| good	0.599 \| good	8.183 \| good	0.271 \| good
2026-08-17T12:00:00.000Z	27 \| good	4.855 \| good	17.815 \| good	16.926 \| good	0.395 \| good	10.227 \| good	0.328 \| good
2026-08-17T13:00:00.000Z	27 \| good	4.826 \| good	18.125 \| good	16.852 \| good	0.4 \| good	9.613 \| good	0.328 \| good
2026-08-17T14:00:00.000Z	56 \| moderate	12.044 \| good	22.855 \| good	14.344 \| good	0.476 \| good	11.915 \| good	0.503 \| good
2026-08-17T15:00:00.000Z	54 \| moderate	11.206 \| good	22.979 \| good	14.859 \| good	0.646 \| good	10.147 \| good	0.524 \| good
2026-08-17T16:00:00.000Z	54 \| moderate	10.552 \| good	24.534 \| good	18.456 \| good	0.803 \| good	12.271 \| good	0.53 \| good
2026-08-17T17:00:00.000Z	54 \| moderate	11.252 \| good	27.305 \| good	25.585 \| good	0.816 \| good	11.06 \| good	0.457 \| good
2026-08-17T18:00:00.000Z	54 \| moderate	10.93 \| good	25.169 \| good	33.858 \| good	0.784 \| good	9.979 \| good	0.413 \| good
2026-08-17T19:00:00.000Z	52 \| moderate	10.469 \| good	28.562 \| good	41.716 \| good	0.763 \| good	7.851 \| good	0.36 \| good
2026-08-17T20:00:00.000Z	44 \| good	8.384 \| good	26.717 \| good	45.194 \| good	0.649 \| good	7.004 \| good	0.36 \| good
2026-08-17T21:00:00.000Z	69 \| moderate	19.46 \| fine	27.073 \| good	50.131 \| good	0.616 \| good	4.937 \| good	0.306 \| good
2026-08-17T22:00:00.000Z	64 \| moderate	15.726 \| fine	25.712 \| good	50.755 \| good	0.817 \| good	4.943 \| good	0.316 \| good
2026-08-17T23:00:00.000Z	58 \| moderate	13.044 \| fine	26.501 \| good	53.732 \| good	0.884 \| good	8.291 \| good	0.348 \| good
2026-08-18T00:00:00.000Z	77 \| moderate	12.476 \| fine	28.65 \| good	63.273 \| fine	0.885 \| good	8.299 \| good	0.348 \| good
2026-08-18T01:00:00.000Z	56 \| moderate	11.997 \| good	28.433 \| good	54.082 \| good	1.079 \| good	9.281 \| good	0.411 \| good
2026-08-18T02:00:00.000Z	54 \| moderate	10.697 \| good	28.288 \| good	50.637 \| good	0.778 \| good	12.289 \| good	0.38 \| good
2026-08-18T03:00:00.000Z	56 \| moderate	12.057 \| good	29.544 \| good	43.541 \| good	0.675 \| good	10.606 \| good	0.334 \| good
2026-08-18T04:00:00.000Z	54 \| moderate	10.899 \| good	27.321 \| good	39.628 \| good	0.596 \| good	9.238 \| good	0.334 \| good
2026-08-18T05:00:00.000Z	56 \| moderate	11.507 \| good	27.833 \| good	32.183 \| good	0.711 \| good	13.154 \| good	0.334 \| good
2026-08-18T06:00:00.000Z	56 \| moderate	12.156 \| fine	26.93 \| good	25.426 \| good	0.538 \| good	8.041 \| good	0.409 \| good
2026-08-18T07:00:00.000Z	56 \| moderate	12.207 \| fine	26.516 \| good	25.601 \| good	0.539 \| good	8.393 \| good	0.409 \| good
2026-08-18T08:00:00.000Z	54 \| moderate	10.902 \| good	27.219 \| good	20.532 \| good	0.555 \| good	10.292 \| good	0.346 \| good
2026-08-18T09:00:00.000Z	52 \| moderate	10.474 \| good	24.208 \| good	14.889 \| good	0.484 \| good	12.765 \| good	0.336 \| good
2026-08-18T10:00:00.000Z	54 \| moderate	10.937 \| good	24.345 \| good	11.526 \| good	0.483 \| good	12.341 \| good	0.361 \| good
2026-08-18T11:00:00.000Z	52 \| moderate	9.888 \| good	20.937 \| good	12.63 \| good	0.679 \| good	12.45 \| good	0.329 \| good
2026-08-18T12:00:00.000Z	44 \| good	8.013 \| good	19.617 \| good	12.307 \| good	0.474 \| good	10.385 \| good	0.383 \| good
2026-08-18T13:00:00.000Z	44 \| good	8.06 \| good	21.052 \| good	12.344 \| good	0.476 \| good	11.048 \| good	0.383 \| good
2026-08-18T14:00:00.000Z	44 \| good	8.241 \| good	23.773 \| good	12.023 \| good	0.636 \| good	17.331 \| good	0.69 \| good
2026-08-18T15:00:00.000Z	49 \| good	9.394 \| good	28.597 \| good	16.589 \| good	0.82 \| good	14.035 \| good	0.601 \| good
2026-08-18T16:00:00.000Z	52 \| moderate	10.26 \| good	28.59 \| good	24.478 \| good	0.8 \| good	17.862 \| good	0.542 \| good
2026-08-18T17:00:00.000Z	52 \| moderate	9.808 \| good	28.457 \| good	30.541 \| good	0.765 \| good	13.138 \| good	0.467 \| good
2026-08-18T17:00:00.000Z	52 \| moderate	10.26 \| good	28.59 \| good	24.478 \| good	0.8 \| good	17.862 \| good	0.542 \| good
2026-08-18T18:00:00.000Z	52 \| moderate	10.29 \| good	45.86 \| good	50.679 \| good	0.702 \| good	2.848 \| good	0.123 \| good
2026-08-18T19:00:00.000Z	54 \| moderate	7.529 \| good	33.328 \| good	56.26 \| fine	0.707 \| good	2.197 \| good	0.121 \| good
2026-08-18T20:00:00.000Z	71 \| moderate	6.777 \| good	29.918 \| good	61.142 \| fine	0.682 \| good	1.68 \| good	0.119 \| good
2026-08-18T21:00:00.000Z	84 \| moderate	6.686 \| good	29.666 \| good	64.883 \| fine	0.645 \| good	1.373 \| good	0.118 \| good
2026-08-18T22:00:00.000Z	90 \| moderate	8.191 \| good	35.86 \| good	66.718 \| fine	0.615 \| good	1.251 \| good	0.117 \| good
2026-08-18T23:00:00.000Z	71 \| moderate	7.783 \| good	34.39 \| good	61.009 \| fine	0.595 \| good	1.282 \| good	0.116 \| good
2026-08-19T00:00:00.000Z	48 \| good	6.998 \| good	30.887 \| good	51.54 \| good	0.588 \| good	1.533 \| good	0.116 \| good
2026-08-19T01:00:00.000Z	43 \| good	6.766 \| good	30.129 \| good	45.508 \| good	0.608 \| good	2.22 \| good	0.119 \| good
2026-08-19T02:00:00.000Z	44 \| good	8.011 \| good	35.303 \| good	41.346 \| good	0.629 \| good	3.477 \| good	0.123 \| good
2026-08-19T03:00:00.000Z	38 \| good	7.17 \| good	31.614 \| good	36.298 \| good	0.607 \| good	4.88 \| good	0.129 \| good
2026-08-19T04:00:00.000Z	49 \| good	8.999 \| good	39.878 \| good	33.42 \| good	0.571 \| good	5.861 \| good	0.133 \| good
2026-08-19T05:00:00.000Z	49 \| good	8.758 \| good	38.823 \| good	29.582 \| good	0.526 \| good	6.46 \| good	0.136 \| good
2026-08-19T06:00:00.000Z	49 \| good	9.04 \| good	40.132 \| good	27.251 \| good	0.481 \| good	6.924 \| good	0.139 \| good
2026-08-19T07:00:00.000Z	49 \| good	9.244 \| good	41.049 \| good	25.685 \| good	0.446 \| good	7.635 \| good	0.143 \| good
2026-08-19T08:00:00.000Z	54 \| moderate	10.782 \| good	47.958 \| good	24.462 \| good	0.434 \| good	7.846 \| good	0.146 \| good
2026-08-19T09:00:00.000Z	54 \| moderate	10.876 \| good	48.232 \| good	23.502 \| good	0.425 \| good	8.106 \| good	0.148 \| good
2026-08-19T10:00:00.000Z	54 \| moderate	10.976 \| good	48.695 \| good	22.165 \| good	0.426 \| good	8.374 \| good	0.15 \| good
2026-08-19T11:00:00.000Z	58 \| moderate	12.69 \| fine	57.027 \| fine	20.684 \| good	0.445 \| good	9.116 \| good	0.155 \| good
2026-08-19T12:00:00.000Z	64 \| moderate	15.856 \| fine	70.265 \| fine	17.484 \| good	0.458 \| good	10.092 \| good	0.16 \| good
2026-08-19T13:00:00.000Z	62 \| moderate	15.124 \| fine	67.665 \| fine	17.444 \| good	0.465 \| good	10.874 \| good	0.166 \| good
2026-08-19T14:00:00.000Z	67 \| moderate	17.669 \| fine	78.306 \| fine	19.814 \| good	0.46 \| good	10.133 \| good	0.174 \| good
2026-08-19T15:00:00.000Z	67 \| moderate	17.545 \| fine	77.828 \| fine	30.805 \| good	0.495 \| good	5.419 \| good	0.153 \| good
2026-08-19T16:00:00.000Z	66 \| moderate	16.6 \| fine	74.167 \| fine	45.285 \| good	0.542 \| good	3.932 \| good	0.143 \| good
2026-08-19T17:00:00.000Z	58 \| moderate	13.271 \| fine	59.36 \| fine	56.004 \| fine	0.586 \| good	3.269 \| good	0.141 \| good
2026-08-19T18:00:00.000Z	80 \| moderate	11.488 \| good	51.385 \| good	64.136 \| fine	0.647 \| good	2.692 \| good	0.138 \| good
2026-08-19T19:00:00.000Z	101 \| sensitive	11.543 \| good	51.44 \| good	71.143 \| moderate	0.701 \| good	2.05 \| good	0.136 \| good
2026-08-19T20:00:00.000Z	122 \| sensitive	12.146 \| fine	54.206 \| good	76.969 \| moderate	0.703 \| good	1.488 \| good	0.135 \| good
2026-08-19T21:00:00.000Z	122 \| sensitive	12.214 \| fine	55.122 \| fine	77.275 \| moderate	0.728 \| good	1.279 \| good	0.136 \| good
2026-08-19T22:00:00.000Z	115 \| sensitive	11.452 \| good	51.105 \| good	74.844 \| moderate	0.767 \| good	1.293 \| good	0.139 \| good
2026-08-19T23:00:00.000Z	87 \| moderate	11.197 \| good	49.666 \| good	65.87 \| fine	0.792 \| good	1.411 \| good	0.142 \| good
2026-08-20T00:00:00.000Z	49 \| good	7.885 \| good	34.471 \| good	52.741 \| good	0.836 \| good	1.717 \| good	0.147 \| good
2026-08-20T01:00:00.000Z	44 \| good	8.297 \| good	36.473 \| good	46.536 \| good	0.815 \| good	2.521 \| good	0.155 \| good
2026-08-20T02:00:00.000Z	49 \| good	9.025 \| good	40.029 \| good	43.402 \| good	0.805 \| good	3.762 \| good	0.162 \| good
2026-08-20T03:00:00.000Z	44 \| good	8.301 \| good	36.64 \| good	38.004 \| good	0.732 \| good	4.963 \| good	0.167 \| good
2026-08-20T04:00:00.000Z	44 \| good	8.348 \| good	36.712 \| good	35.294 \| good	0.643 \| good	5.659 \| good	0.17 \| good
2026-08-20T05:00:00.000Z	49 \| good	8.537 \| good	37.348 \| good	32.89 \| good	0.573 \| good	6.269 \| good	0.17 \| good
2026-08-20T06:00:00.000Z	54 \| moderate	10.521 \| good	46.838 \| good	29.163 \| good	0.504 \| good	6.757 \| good	0.169 \| good
2026-08-20T07:00:00.000Z	52 \| moderate	10.091 \| good	44.756 \| good	26.878 \| good	0.493 \| good	7.073 \| good	0.168 \| good
2026-08-20T08:00:00.000Z	56 \| moderate	11.73 \| good	51.84 \| good	23.705 \| good	0.492 \| good	7.347 \| good	0.167 \| good
2026-08-20T09:00:00.000Z	56 \| moderate	12.383 \| fine	56.219 \| fine	21.63 \| good	0.516 \| good	7.689 \| good	0.166 \| good
2026-08-20T10:00:00.000Z	58 \| moderate	12.657 \| fine	56.334 \| fine	18.787 \| good	0.535 \| good	8.073 \| good	0.165 \| good
2026-08-20T11:00:00.000Z	60 \| moderate	13.515 \| fine	61.007 \| fine	17.654 \| good	0.546 \| good	8.456 \| good	0.165 \| good
2026-08-20T12:00:00.000Z	64 \| moderate	16.406 \| fine	73.274 \| fine	14.954 \| good	0.551 \| good	8.695 \| good	0.165 \| good
2026-08-20T13:00:00.000Z	66 \| moderate	16.737 \| fine	74.483 \| fine	13.207 \| good	0.546 \| good	9.26 \| good	0.166 \| good
2026-08-20T14:00:00.000Z	73 \| moderate	21.08 \| fine	92.364 \| fine	16.82 \| good	0.53 \| good	8.779 \| good	0.17 \| good
2026-08-20T15:00:00.000Z	75 \| moderate	21.557 \| fine	94.686 \| fine	31.162 \| good	0.553 \| good	5.919 \| good	0.156 \| good
2026-08-20T16:00:00.000Z	75 \| moderate	22.055 \| fine	96.997 \| fine	43.864 \| good	0.612 \| good	4.158 \| good	0.144 \| good
2026-08-20T17:00:00.000Z	69 \| moderate	19.302 \| fine	84.858 \| fine	56.456 \| fine	0.715 \| good	3.196 \| good	0.14 \| 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)

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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?

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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?