What is the PM10 level in Costa Mesa, California at the moment?

The PM10 concentration in Costa Mesa, California is 17.25 μg/m3 at the moment.

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

Currently, Costa Mesa, California has a sulfur dioxide (SO2) concentration of 0.327 ppb.

What is the ozone (O3) level in Costa Mesa, California at the moment?

The current ozone (O3) level in Costa Mesa, California at the moment is 24.013 ppm.

What is the nitrogen dioxide (NO2) level in Costa Mesa, California at the moment?

Nitrogen dioxide (NO2) level in Costa Mesa, California at the moment is 3.428 ppb.

Live air quality index in Costa Mesa, California today

Name: Live air pollution levels in Costa Mesa, California today
Creator: Ambee

Stay updated with real-time air quality in Costa Mesa, 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)

Good

Costa Mesa, California

Last updated: ... (Local time)

Major air pollutants in Costa Mesa, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

3.86 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

14.77 μg/m³

155

255

425

605+

Ozone (O₃)

28.27 ppb

201

201+

Sulfur Dioxide (SO₂)

0.27 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

5.23 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.20 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

High

Costa Mesa, California

Get Live Pollen Counts

Costa Mesa, California

Scroll To Air Quality Map

Track live Costa Mesa, California air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-09-08T20:00:00.000Z	31 \| good	5.181 \| good	14.873 \| good	33.565 \| good	0.448 \| good	10.562 \| good	0.223 \| good
2025-09-08T21:00:00.000Z	38 \| good	5.373 \| good	28.849 \| good	40.515 \| good	0.307 \| good	12.177 \| good	0.223 \| good
2025-09-08T22:00:00.000Z	40 \| good	4.419 \| good	15.124 \| good	42.621 \| good	0.297 \| good	7.196 \| good	0.248 \| good
2025-09-08T23:00:00.000Z	42 \| good	5.816 \| good	24.304 \| good	45.041 \| good	0.579 \| good	13.344 \| good	0.223 \| good
2025-09-09T00:00:00.000Z	32 \| good	5.012 \| good	21.367 \| good	34.756 \| good	2.324 \| good	5.447 \| good	0.116 \| good
2025-09-09T01:00:00.000Z	28 \| good	3.614 \| good	16.048 \| good	29.686 \| good	2.247 \| good	7.092 \| good	0.119 \| good
2025-09-09T02:00:00.000Z	25 \| good	2.991 \| good	12.261 \| good	26.754 \| good	1.848 \| good	7.52 \| good	0.119 \| good
2025-09-09T03:00:00.000Z	24 \| good	3.71 \| good	16.221 \| good	26.461 \| good	1.818 \| good	9.234 \| good	0.124 \| good
2025-09-09T04:00:00.000Z	22 \| good	4.19 \| good	18.117 \| good	23.697 \| good	2.1 \| good	11.153 \| good	0.128 \| good
2025-09-09T05:00:00.000Z	19 \| good	3.418 \| good	15.199 \| good	20.865 \| good	2.106 \| good	11.924 \| good	0.132 \| good
2025-09-09T06:00:00.000Z	27 \| good	4.658 \| good	20.187 \| good	18.318 \| good	2.112 \| good	12.695 \| good	0.135 \| good
2025-09-09T07:00:00.000Z	17 \| good	3.072 \| good	12.445 \| good	17.881 \| good	1.915 \| good	11.529 \| good	0.138 \| good
2025-09-09T08:00:00.000Z	18 \| good	3.19 \| good	10.147 \| good	18.547 \| good	0.288 \| good	4.307 \| good	0.269 \| good
2025-09-09T09:00:00.000Z	15 \| good	1.791 \| good	11.988 \| good	15.707 \| good	0.281 \| good	4.249 \| good	0.17 \| good
2025-09-09T10:00:00.000Z	22 \| good	3.72 \| good	17.564 \| good	17.872 \| good	0.233 \| good	4.259 \| good	0.17 \| good
2025-09-09T11:00:00.000Z	27 \| good	5.387 \| good	16.287 \| good	13.31 \| good	0.273 \| good	5.213 \| good	0.187 \| good
2025-09-09T12:00:00.000Z	33 \| good	5.731 \| good	13.35 \| good	15.661 \| good	0.232 \| good	6.486 \| good	0.17 \| good
2025-09-09T13:00:00.000Z	38 \| good	7.294 \| good	23.408 \| good	13.982 \| good	0.259 \| good	7.239 \| good	0.164 \| good
2025-09-09T14:00:00.000Z	52 \| moderate	9.509 \| good	19.57 \| good	17.514 \| good	0.32 \| good	10.091 \| good	0.197 \| good
2025-09-09T15:00:00.000Z	27 \| good	4.988 \| good	26.068 \| good	16.414 \| good	0.368 \| good	9.322 \| good	0.127 \| good
2025-09-09T16:00:00.000Z	38 \| good	6.742 \| good	19.597 \| good	17.609 \| good	0.491 \| good	11.411 \| good	0.116 \| good
2025-09-09T17:00:00.000Z	25 \| good	3.98 \| good	26.889 \| good	20.825 \| good	0.52 \| good	10.408 \| good	0.13 \| good
2025-09-09T18:00:00.000Z	27 \| good	5.018 \| good	24.488 \| good	20.389 \| good	0.339 \| good	13.318 \| good	0.116 \| good
2025-09-09T19:00:00.000Z	33 \| good	5.987 \| good	20.86 \| good	28.402 \| good	0.279 \| good	8.78 \| good	0.116 \| good
2025-09-09T20:00:00.000Z	33 \| good	5.971 \| good	19.799 \| good	33.522 \| good	0.235 \| good	7.415 \| good	0.131 \| good
2025-09-09T21:00:00.000Z	33 \| good	5.615 \| good	22.849 \| good	34.066 \| good	0.258 \| good	10.254 \| good	0.134 \| good
2025-09-09T22:00:00.000Z	40 \| good	5.687 \| good	31.931 \| good	42.571 \| good	0.168 \| good	9.322 \| good	0.134 \| good
2025-09-09T23:00:00.000Z	33 \| good	6.066 \| good	31.709 \| good	36.049 \| good	0.175 \| good	9.593 \| good	0.131 \| good
2025-09-10T00:00:00.000Z	31 \| good	5.363 \| good	23.323 \| good	34.08 \| good	0.154 \| good	8.805 \| good	0.212 \| good
2025-09-10T01:00:00.000Z	38 \| good	6.518 \| good	18.683 \| good	29.073 \| good	0.22 \| good	5.774 \| good	0.231 \| good
2025-09-10T02:00:00.000Z	29 \| good	5.149 \| good	30.732 \| good	31.468 \| good	0.235 \| good	3.808 \| good	0.231 \| good
2025-09-10T03:00:00.000Z	33 \| good	6.161 \| good	34.724 \| good	27.321 \| good	0.244 \| good	4.568 \| good	0.223 \| good
2025-09-10T04:00:00.000Z	28 \| good	4.72 \| good	30.143 \| good	25.031 \| good	0.296 \| good	4.358 \| good	0.243 \| good
2025-09-10T05:00:00.000Z	33 \| good	5.688 \| good	19.172 \| good	24.292 \| good	0.517 \| good	6.802 \| good	0.253 \| good
2025-09-10T06:00:00.000Z	38 \| good	6.759 \| good	21.06 \| good	19.929 \| good	0.216 \| good	8.482 \| good	0.288 \| good
2025-09-10T07:00:00.000Z	27 \| good	5.072 \| good	19.123 \| good	21.597 \| good	0.22 \| good	9.147 \| good	0.253 \| good
2025-09-10T08:00:00.000Z	27 \| good	4.97 \| good	16.72 \| good	21.06 \| good	0.316 \| good	8.853 \| good	0.223 \| good
2025-09-10T09:00:00.000Z	18 \| good	3.148 \| good	16.261 \| good	18.629 \| good	0.244 \| good	10.968 \| good	0.133 \| good
2025-09-10T10:00:00.000Z	19 \| good	3.21 \| good	21.379 \| good	18.363 \| good	0.443 \| good	10.07 \| good	0.133 \| good
2025-09-10T11:00:00.000Z	22 \| good	3.802 \| good	9.364 \| good	20.608 \| good	0.316 \| good	7.176 \| good	0.135 \| good
2025-09-10T12:00:00.000Z	22 \| good	3.822 \| good	11.922 \| good	22.786 \| good	0.366 \| good	5.198 \| good	0.183 \| good
2025-09-10T13:00:00.000Z	23 \| good	3.891 \| good	12.084 \| good	24.75 \| good	0.288 \| good	5.709 \| good	0.218 \| good
2025-09-10T14:00:00.000Z	22 \| good	3.875 \| good	14.59 \| good	23.954 \| good	0.402 \| good	4.463 \| good	0.253 \| good
2025-09-10T15:00:00.000Z	49 \| good	8.767 \| good	15.815 \| good	22.238 \| good	0.203 \| good	3.146 \| good	0.211 \| good
2025-09-10T16:00:00.000Z	94 \| moderate	32.415 \| fine	95.403 \| fine	24.044 \| good	0.348 \| good	2.76 \| good	0.178 \| good
2025-09-10T17:00:00.000Z	23 \| good	4.371 \| good	14.864 \| good	24.907 \| good	0.312 \| good	3.561 \| good	0.178 \| good
2025-09-10T18:00:00.000Z	73 \| moderate	20.867 \| fine	81.722 \| fine	26.014 \| good	0.28 \| good	8.617 \| good	0.183 \| good
2025-09-10T19:00:00.000Z	26 \| good	4.466 \| good	13.583 \| good	28.435 \| good	0.262 \| good	5.607 \| good	0.183 \| good
2025-09-10T19:00:00.000Z	26 \| good	3.857 \| good	14.772 \| good	28.27 \| good	0.273 \| good	5.231 \| good	0.196 \| good
2025-09-10T18:00:00.000Z	29 \| good	4.086 \| good	18.109 \| good	31.152 \| good	0.716 \| good	2.152 \| good	0.099 \| good
2025-09-10T19:00:00.000Z	31 \| good	4.252 \| good	18.639 \| good	33.12 \| good	0.753 \| good	1.997 \| good	0.098 \| good
2025-09-10T20:00:00.000Z	31 \| good	4.462 \| good	19.338 \| good	33.751 \| good	0.789 \| good	1.842 \| good	0.098 \| good
2025-09-10T21:00:00.000Z	32 \| good	3.436 \| good	14.966 \| good	34.761 \| good	0.826 \| good	1.687 \| good	0.097 \| good
2025-09-10T22:00:00.000Z	32 \| good	2.461 \| good	10 \| good	35.068 \| good	0.933 \| good	2.005 \| good	0.098 \| good
2025-09-10T23:00:00.000Z	34 \| good	3.15 \| good	13.17 \| good	36.868 \| good	1.041 \| good	2.323 \| good	0.099 \| good
2025-09-11T00:00:00.000Z	36 \| good	3.672 \| good	16.28 \| good	39.104 \| good	1.149 \| good	2.641 \| good	0.101 \| good
2025-09-11T01:00:00.000Z	34 \| good	2.31 \| good	9.278 \| good	36.995 \| good	1.396 \| good	4.172 \| good	0.103 \| good
2025-09-11T02:00:00.000Z	31 \| good	3.739 \| good	16.477 \| good	32.688 \| good	1.642 \| good	5.702 \| good	0.106 \| good
2025-09-11T03:00:00.000Z	28 \| good	3.342 \| good	14.268 \| good	29.886 \| good	1.888 \| good	7.232 \| good	0.109 \| good
2025-09-11T04:00:00.000Z	24 \| good	4.112 \| good	18.085 \| good	26.301 \| good	2.09 \| good	8.284 \| good	0.11 \| good
2025-09-11T05:00:00.000Z	22 \| good	3.405 \| good	14.846 \| good	24.054 \| good	2.293 \| good	9.336 \| good	0.112 \| good
2025-09-11T06:00:00.000Z	22 \| good	3.507 \| good	15.08 \| good	21.554 \| good	2.495 \| good	10.388 \| good	0.113 \| good
2025-09-11T07:00:00.000Z	19 \| good	2.593 \| good	10.42 \| good	20.129 \| good	2.525 \| good	10.722 \| good	0.114 \| good
2025-09-11T08:00:00.000Z	17 \| good	2.484 \| good	10.296 \| good	17.975 \| good	2.555 \| good	11.056 \| good	0.114 \| good
2025-09-11T09:00:00.000Z	14 \| good	2.367 \| good	9.935 \| good	15.472 \| good	2.585 \| good	11.39 \| good	0.114 \| good
2025-09-11T10:00:00.000Z	14 \| good	2.044 \| good	8.26 \| good	14.542 \| good	2.695 \| good	11.208 \| good	0.112 \| good
2025-09-11T11:00:00.000Z	16 \| good	2.7 \| good	11.172 \| good	15.064 \| good	2.804 \| good	11.027 \| good	0.11 \| good
2025-09-11T12:00:00.000Z	16 \| good	2.57 \| good	10.714 \| good	14.851 \| good	2.914 \| good	10.845 \| good	0.108 \| good
2025-09-11T13:00:00.000Z	22 \| good	4.01 \| good	17.266 \| good	13.598 \| good	2.906 \| good	10.074 \| good	0.111 \| good
2025-09-11T14:00:00.000Z	16 \| good	2.704 \| good	10.784 \| good	14.424 \| good	2.898 \| good	9.304 \| good	0.115 \| good
2025-09-11T15:00:00.000Z	27 \| good	4.519 \| good	19.588 \| good	16.947 \| good	2.889 \| good	8.533 \| good	0.118 \| good
2025-09-11T16:00:00.000Z	27 \| good	4.951 \| good	21.636 \| good	20.61 \| good	2.475 \| good	6.889 \| good	0.113 \| good
2025-09-11T17:00:00.000Z	22 \| good	3.691 \| good	16.339 \| good	24.412 \| good	2.06 \| good	5.246 \| good	0.108 \| good
2025-09-11T18:00:00.000Z	28 \| good	4.842 \| good	20.785 \| good	29.896 \| good	1.646 \| good	3.602 \| good	0.103 \| good
2025-09-11T19:00:00.000Z	32 \| good	4.073 \| good	17.698 \| good	35.291 \| good	1.578 \| good	3.249 \| good	0.102 \| good
2025-09-11T20:00:00.000Z	33 \| good	3.899 \| good	17.135 \| good	36.388 \| good	1.511 \| good	2.896 \| good	0.101 \| good
2025-09-11T21:00:00.000Z	33 \| good	2.348 \| good	9.462 \| good	36.354 \| good	1.444 \| good	2.543 \| good	0.1 \| good
2025-09-11T22:00:00.000Z	32 \| good	2.137 \| good	8.639 \| good	35.394 \| good	1.453 \| good	2.736 \| good	0.102 \| good
2025-09-11T23:00:00.000Z	33 \| good	2.367 \| good	9.58 \| good	36.239 \| good	1.463 \| good	2.93 \| good	0.104 \| good
2025-09-12T00:00:00.000Z	34 \| good	3.1 \| good	12.854 \| good	36.896 \| good	1.472 \| good	3.123 \| good	0.106 \| good
2025-09-12T01:00:00.000Z	31 \| good	1.953 \| good	8.032 \| good	33.073 \| good	1.599 \| good	4.56 \| good	0.112 \| good
2025-09-12T02:00:00.000Z	27 \| good	1.846 \| good	7.861 \| good	29.238 \| good	1.727 \| good	5.997 \| good	0.118 \| good
2025-09-12T03:00:00.000Z	25 \| good	2.787 \| good	11.304 \| good	27.365 \| good	1.854 \| good	7.435 \| good	0.123 \| good
2025-09-12T04:00:00.000Z	24 \| good	2.962 \| good	12.322 \| good	25.576 \| good	1.999 \| good	8.691 \| good	0.127 \| good
2025-09-12T05:00:00.000Z	22 \| good	3.332 \| good	14.765 \| good	24.186 \| good	2.143 \| good	9.947 \| good	0.131 \| good
2025-09-12T06:00:00.000Z	20 \| good	3.292 \| good	14.393 \| good	22.414 \| good	2.288 \| good	11.203 \| good	0.135 \| good
2025-09-12T07:00:00.000Z	20 \| good	2.351 \| good	10 \| good	21.992 \| good	2.166 \| good	11.175 \| good	0.136 \| good
2025-09-12T08:00:00.000Z	19 \| good	2.089 \| good	8.187 \| good	21.155 \| good	2.045 \| good	11.147 \| good	0.137 \| good
2025-09-12T09:00:00.000Z	19 \| good	1.565 \| good	6.196 \| good	21.449 \| good	1.923 \| good	11.119 \| good	0.137 \| good
2025-09-12T10:00:00.000Z	20 \| good	1.921 \| good	7.899 \| good	21.924 \| good	1.796 \| good	10.635 \| good	0.135 \| good
2025-09-12T11:00:00.000Z	20 \| good	2.476 \| good	10.182 \| good	22.06 \| good	1.668 \| good	10.151 \| good	0.133 \| good
2025-09-12T12:00:00.000Z	20 \| good	1.192 \| good	4.843 \| good	21.933 \| good	1.541 \| good	9.667 \| good	0.132 \| good
2025-09-12T13:00:00.000Z	20 \| good	3.386 \| good	14.709 \| good	22.206 \| good	1.547 \| good	9.415 \| good	0.142 \| good
2025-09-12T14:00:00.000Z	20 \| good	3.327 \| good	14.496 \| good	22.025 \| good	1.554 \| good	9.163 \| good	0.153 \| good
2025-09-12T15:00:00.000Z	22 \| good	4.062 \| good	17.795 \| good	22.226 \| good	1.56 \| good	8.911 \| good	0.164 \| good
2025-09-12T16:00:00.000Z	27 \| good	5.024 \| good	21.506 \| good	24.71 \| good	1.464 \| good	7.015 \| good	0.148 \| good
2025-09-12T17:00:00.000Z	27 \| good	5.103 \| good	21.839 \| good	28.469 \| good	1.367 \| good	5.119 \| good	0.132 \| good

Costa Mesa

Get reliable air quality data to drive your business

Costa Mesa, California air quality map: Stay updated on AQI near you

0.20ppm

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 Costa Mesa, California?

The air quality information for Costa Mesa, California is updated every hour for accuracy.

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

In the past 24 hours, the air quality in Costa Mesa, California was at its worst at 03:00:00 on 2025-09-10.

When did Costa Mesa, California experience the best air quality in the last 24 hours?

In the last 24 hours, the best air quality in Costa Mesa, California was observed at 10:00:00 on 2025-09-10.

What is the AQI in Costa Mesa, California right now?

As of now, the AQI in Costa Mesa, California is 62, indicating Moderate conditions.

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

Costa Mesa, California air has the highest levels of PM2.5.

What should I do in case of poor air quality in Costa Mesa, California?

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

What is the PM_2.5 level in Costa Mesa, California at the moment?

PM_2.5 levels in Costa Mesa, California are currently 15.441 μg/m³.

What is the PM₁₀ level in Costa Mesa, California at the moment?

The PM₁₀ concentration in Costa Mesa, California is 17.25 μg/m³ at the moment.

What is the carbon monoxide (CO) level in Costa Mesa, California at the moment?

The current carbon monoxide (CO) concentration in Costa Mesa, California is 0.168 ppm.

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

Currently, Costa Mesa, California has a sulfur dioxide (SO₂) concentration of 0.327 ppb.

What is the ozone (O₃) level in Costa Mesa, California at the moment?

The current ozone (O₃) level in Costa Mesa, California at the moment is 24.013 ppm.

What is the nitrogen dioxide (NO₂) level in Costa Mesa, California at the moment?

Nitrogen dioxide (NO₂) level in Costa Mesa, California at the moment is 3.428 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-09-08T20:00:00.000Z	31 \| good	5.181 \| good	14.873 \| good	33.565 \| good	0.448 \| good	10.562 \| good	0.223 \| good
2025-09-08T21:00:00.000Z	38 \| good	5.373 \| good	28.849 \| good	40.515 \| good	0.307 \| good	12.177 \| good	0.223 \| good
2025-09-08T22:00:00.000Z	40 \| good	4.419 \| good	15.124 \| good	42.621 \| good	0.297 \| good	7.196 \| good	0.248 \| good
2025-09-08T23:00:00.000Z	42 \| good	5.816 \| good	24.304 \| good	45.041 \| good	0.579 \| good	13.344 \| good	0.223 \| good
2025-09-09T00:00:00.000Z	32 \| good	5.012 \| good	21.367 \| good	34.756 \| good	2.324 \| good	5.447 \| good	0.116 \| good
2025-09-09T01:00:00.000Z	28 \| good	3.614 \| good	16.048 \| good	29.686 \| good	2.247 \| good	7.092 \| good	0.119 \| good
2025-09-09T02:00:00.000Z	25 \| good	2.991 \| good	12.261 \| good	26.754 \| good	1.848 \| good	7.52 \| good	0.119 \| good
2025-09-09T03:00:00.000Z	24 \| good	3.71 \| good	16.221 \| good	26.461 \| good	1.818 \| good	9.234 \| good	0.124 \| good
2025-09-09T04:00:00.000Z	22 \| good	4.19 \| good	18.117 \| good	23.697 \| good	2.1 \| good	11.153 \| good	0.128 \| good
2025-09-09T05:00:00.000Z	19 \| good	3.418 \| good	15.199 \| good	20.865 \| good	2.106 \| good	11.924 \| good	0.132 \| good
2025-09-09T06:00:00.000Z	27 \| good	4.658 \| good	20.187 \| good	18.318 \| good	2.112 \| good	12.695 \| good	0.135 \| good
2025-09-09T07:00:00.000Z	17 \| good	3.072 \| good	12.445 \| good	17.881 \| good	1.915 \| good	11.529 \| good	0.138 \| good
2025-09-09T08:00:00.000Z	18 \| good	3.19 \| good	10.147 \| good	18.547 \| good	0.288 \| good	4.307 \| good	0.269 \| good
2025-09-09T09:00:00.000Z	15 \| good	1.791 \| good	11.988 \| good	15.707 \| good	0.281 \| good	4.249 \| good	0.17 \| good
2025-09-09T10:00:00.000Z	22 \| good	3.72 \| good	17.564 \| good	17.872 \| good	0.233 \| good	4.259 \| good	0.17 \| good
2025-09-09T11:00:00.000Z	27 \| good	5.387 \| good	16.287 \| good	13.31 \| good	0.273 \| good	5.213 \| good	0.187 \| good
2025-09-09T12:00:00.000Z	33 \| good	5.731 \| good	13.35 \| good	15.661 \| good	0.232 \| good	6.486 \| good	0.17 \| good
2025-09-09T13:00:00.000Z	38 \| good	7.294 \| good	23.408 \| good	13.982 \| good	0.259 \| good	7.239 \| good	0.164 \| good
2025-09-09T14:00:00.000Z	52 \| moderate	9.509 \| good	19.57 \| good	17.514 \| good	0.32 \| good	10.091 \| good	0.197 \| good
2025-09-09T15:00:00.000Z	27 \| good	4.988 \| good	26.068 \| good	16.414 \| good	0.368 \| good	9.322 \| good	0.127 \| good
2025-09-09T16:00:00.000Z	38 \| good	6.742 \| good	19.597 \| good	17.609 \| good	0.491 \| good	11.411 \| good	0.116 \| good
2025-09-09T17:00:00.000Z	25 \| good	3.98 \| good	26.889 \| good	20.825 \| good	0.52 \| good	10.408 \| good	0.13 \| good
2025-09-09T18:00:00.000Z	27 \| good	5.018 \| good	24.488 \| good	20.389 \| good	0.339 \| good	13.318 \| good	0.116 \| good
2025-09-09T19:00:00.000Z	33 \| good	5.987 \| good	20.86 \| good	28.402 \| good	0.279 \| good	8.78 \| good	0.116 \| good
2025-09-09T20:00:00.000Z	33 \| good	5.971 \| good	19.799 \| good	33.522 \| good	0.235 \| good	7.415 \| good	0.131 \| good
2025-09-09T21:00:00.000Z	33 \| good	5.615 \| good	22.849 \| good	34.066 \| good	0.258 \| good	10.254 \| good	0.134 \| good
2025-09-09T22:00:00.000Z	40 \| good	5.687 \| good	31.931 \| good	42.571 \| good	0.168 \| good	9.322 \| good	0.134 \| good
2025-09-09T23:00:00.000Z	33 \| good	6.066 \| good	31.709 \| good	36.049 \| good	0.175 \| good	9.593 \| good	0.131 \| good
2025-09-10T00:00:00.000Z	31 \| good	5.363 \| good	23.323 \| good	34.08 \| good	0.154 \| good	8.805 \| good	0.212 \| good
2025-09-10T01:00:00.000Z	38 \| good	6.518 \| good	18.683 \| good	29.073 \| good	0.22 \| good	5.774 \| good	0.231 \| good
2025-09-10T02:00:00.000Z	29 \| good	5.149 \| good	30.732 \| good	31.468 \| good	0.235 \| good	3.808 \| good	0.231 \| good
2025-09-10T03:00:00.000Z	33 \| good	6.161 \| good	34.724 \| good	27.321 \| good	0.244 \| good	4.568 \| good	0.223 \| good
2025-09-10T04:00:00.000Z	28 \| good	4.72 \| good	30.143 \| good	25.031 \| good	0.296 \| good	4.358 \| good	0.243 \| good
2025-09-10T05:00:00.000Z	33 \| good	5.688 \| good	19.172 \| good	24.292 \| good	0.517 \| good	6.802 \| good	0.253 \| good
2025-09-10T06:00:00.000Z	38 \| good	6.759 \| good	21.06 \| good	19.929 \| good	0.216 \| good	8.482 \| good	0.288 \| good
2025-09-10T07:00:00.000Z	27 \| good	5.072 \| good	19.123 \| good	21.597 \| good	0.22 \| good	9.147 \| good	0.253 \| good
2025-09-10T08:00:00.000Z	27 \| good	4.97 \| good	16.72 \| good	21.06 \| good	0.316 \| good	8.853 \| good	0.223 \| good
2025-09-10T09:00:00.000Z	18 \| good	3.148 \| good	16.261 \| good	18.629 \| good	0.244 \| good	10.968 \| good	0.133 \| good
2025-09-10T10:00:00.000Z	19 \| good	3.21 \| good	21.379 \| good	18.363 \| good	0.443 \| good	10.07 \| good	0.133 \| good
2025-09-10T11:00:00.000Z	22 \| good	3.802 \| good	9.364 \| good	20.608 \| good	0.316 \| good	7.176 \| good	0.135 \| good
2025-09-10T12:00:00.000Z	22 \| good	3.822 \| good	11.922 \| good	22.786 \| good	0.366 \| good	5.198 \| good	0.183 \| good
2025-09-10T13:00:00.000Z	23 \| good	3.891 \| good	12.084 \| good	24.75 \| good	0.288 \| good	5.709 \| good	0.218 \| good
2025-09-10T14:00:00.000Z	22 \| good	3.875 \| good	14.59 \| good	23.954 \| good	0.402 \| good	4.463 \| good	0.253 \| good
2025-09-10T15:00:00.000Z	49 \| good	8.767 \| good	15.815 \| good	22.238 \| good	0.203 \| good	3.146 \| good	0.211 \| good
2025-09-10T16:00:00.000Z	94 \| moderate	32.415 \| fine	95.403 \| fine	24.044 \| good	0.348 \| good	2.76 \| good	0.178 \| good
2025-09-10T17:00:00.000Z	23 \| good	4.371 \| good	14.864 \| good	24.907 \| good	0.312 \| good	3.561 \| good	0.178 \| good
2025-09-10T18:00:00.000Z	73 \| moderate	20.867 \| fine	81.722 \| fine	26.014 \| good	0.28 \| good	8.617 \| good	0.183 \| good
2025-09-10T19:00:00.000Z	26 \| good	4.466 \| good	13.583 \| good	28.435 \| good	0.262 \| good	5.607 \| good	0.183 \| good
2025-09-10T19:00:00.000Z	26 \| good	3.857 \| good	14.772 \| good	28.27 \| good	0.273 \| good	5.231 \| good	0.196 \| good
2025-09-10T18:00:00.000Z	29 \| good	4.086 \| good	18.109 \| good	31.152 \| good	0.716 \| good	2.152 \| good	0.099 \| good
2025-09-10T19:00:00.000Z	31 \| good	4.252 \| good	18.639 \| good	33.12 \| good	0.753 \| good	1.997 \| good	0.098 \| good
2025-09-10T20:00:00.000Z	31 \| good	4.462 \| good	19.338 \| good	33.751 \| good	0.789 \| good	1.842 \| good	0.098 \| good
2025-09-10T21:00:00.000Z	32 \| good	3.436 \| good	14.966 \| good	34.761 \| good	0.826 \| good	1.687 \| good	0.097 \| good
2025-09-10T22:00:00.000Z	32 \| good	2.461 \| good	10 \| good	35.068 \| good	0.933 \| good	2.005 \| good	0.098 \| good
2025-09-10T23:00:00.000Z	34 \| good	3.15 \| good	13.17 \| good	36.868 \| good	1.041 \| good	2.323 \| good	0.099 \| good
2025-09-11T00:00:00.000Z	36 \| good	3.672 \| good	16.28 \| good	39.104 \| good	1.149 \| good	2.641 \| good	0.101 \| good
2025-09-11T01:00:00.000Z	34 \| good	2.31 \| good	9.278 \| good	36.995 \| good	1.396 \| good	4.172 \| good	0.103 \| good
2025-09-11T02:00:00.000Z	31 \| good	3.739 \| good	16.477 \| good	32.688 \| good	1.642 \| good	5.702 \| good	0.106 \| good
2025-09-11T03:00:00.000Z	28 \| good	3.342 \| good	14.268 \| good	29.886 \| good	1.888 \| good	7.232 \| good	0.109 \| good
2025-09-11T04:00:00.000Z	24 \| good	4.112 \| good	18.085 \| good	26.301 \| good	2.09 \| good	8.284 \| good	0.11 \| good
2025-09-11T05:00:00.000Z	22 \| good	3.405 \| good	14.846 \| good	24.054 \| good	2.293 \| good	9.336 \| good	0.112 \| good
2025-09-11T06:00:00.000Z	22 \| good	3.507 \| good	15.08 \| good	21.554 \| good	2.495 \| good	10.388 \| good	0.113 \| good
2025-09-11T07:00:00.000Z	19 \| good	2.593 \| good	10.42 \| good	20.129 \| good	2.525 \| good	10.722 \| good	0.114 \| good
2025-09-11T08:00:00.000Z	17 \| good	2.484 \| good	10.296 \| good	17.975 \| good	2.555 \| good	11.056 \| good	0.114 \| good
2025-09-11T09:00:00.000Z	14 \| good	2.367 \| good	9.935 \| good	15.472 \| good	2.585 \| good	11.39 \| good	0.114 \| good
2025-09-11T10:00:00.000Z	14 \| good	2.044 \| good	8.26 \| good	14.542 \| good	2.695 \| good	11.208 \| good	0.112 \| good
2025-09-11T11:00:00.000Z	16 \| good	2.7 \| good	11.172 \| good	15.064 \| good	2.804 \| good	11.027 \| good	0.11 \| good
2025-09-11T12:00:00.000Z	16 \| good	2.57 \| good	10.714 \| good	14.851 \| good	2.914 \| good	10.845 \| good	0.108 \| good
2025-09-11T13:00:00.000Z	22 \| good	4.01 \| good	17.266 \| good	13.598 \| good	2.906 \| good	10.074 \| good	0.111 \| good
2025-09-11T14:00:00.000Z	16 \| good	2.704 \| good	10.784 \| good	14.424 \| good	2.898 \| good	9.304 \| good	0.115 \| good
2025-09-11T15:00:00.000Z	27 \| good	4.519 \| good	19.588 \| good	16.947 \| good	2.889 \| good	8.533 \| good	0.118 \| good
2025-09-11T16:00:00.000Z	27 \| good	4.951 \| good	21.636 \| good	20.61 \| good	2.475 \| good	6.889 \| good	0.113 \| good
2025-09-11T17:00:00.000Z	22 \| good	3.691 \| good	16.339 \| good	24.412 \| good	2.06 \| good	5.246 \| good	0.108 \| good
2025-09-11T18:00:00.000Z	28 \| good	4.842 \| good	20.785 \| good	29.896 \| good	1.646 \| good	3.602 \| good	0.103 \| good
2025-09-11T19:00:00.000Z	32 \| good	4.073 \| good	17.698 \| good	35.291 \| good	1.578 \| good	3.249 \| good	0.102 \| good
2025-09-11T20:00:00.000Z	33 \| good	3.899 \| good	17.135 \| good	36.388 \| good	1.511 \| good	2.896 \| good	0.101 \| good
2025-09-11T21:00:00.000Z	33 \| good	2.348 \| good	9.462 \| good	36.354 \| good	1.444 \| good	2.543 \| good	0.1 \| good
2025-09-11T22:00:00.000Z	32 \| good	2.137 \| good	8.639 \| good	35.394 \| good	1.453 \| good	2.736 \| good	0.102 \| good
2025-09-11T23:00:00.000Z	33 \| good	2.367 \| good	9.58 \| good	36.239 \| good	1.463 \| good	2.93 \| good	0.104 \| good
2025-09-12T00:00:00.000Z	34 \| good	3.1 \| good	12.854 \| good	36.896 \| good	1.472 \| good	3.123 \| good	0.106 \| good
2025-09-12T01:00:00.000Z	31 \| good	1.953 \| good	8.032 \| good	33.073 \| good	1.599 \| good	4.56 \| good	0.112 \| good
2025-09-12T02:00:00.000Z	27 \| good	1.846 \| good	7.861 \| good	29.238 \| good	1.727 \| good	5.997 \| good	0.118 \| good
2025-09-12T03:00:00.000Z	25 \| good	2.787 \| good	11.304 \| good	27.365 \| good	1.854 \| good	7.435 \| good	0.123 \| good
2025-09-12T04:00:00.000Z	24 \| good	2.962 \| good	12.322 \| good	25.576 \| good	1.999 \| good	8.691 \| good	0.127 \| good
2025-09-12T05:00:00.000Z	22 \| good	3.332 \| good	14.765 \| good	24.186 \| good	2.143 \| good	9.947 \| good	0.131 \| good
2025-09-12T06:00:00.000Z	20 \| good	3.292 \| good	14.393 \| good	22.414 \| good	2.288 \| good	11.203 \| good	0.135 \| good
2025-09-12T07:00:00.000Z	20 \| good	2.351 \| good	10 \| good	21.992 \| good	2.166 \| good	11.175 \| good	0.136 \| good
2025-09-12T08:00:00.000Z	19 \| good	2.089 \| good	8.187 \| good	21.155 \| good	2.045 \| good	11.147 \| good	0.137 \| good
2025-09-12T09:00:00.000Z	19 \| good	1.565 \| good	6.196 \| good	21.449 \| good	1.923 \| good	11.119 \| good	0.137 \| good
2025-09-12T10:00:00.000Z	20 \| good	1.921 \| good	7.899 \| good	21.924 \| good	1.796 \| good	10.635 \| good	0.135 \| good
2025-09-12T11:00:00.000Z	20 \| good	2.476 \| good	10.182 \| good	22.06 \| good	1.668 \| good	10.151 \| good	0.133 \| good
2025-09-12T12:00:00.000Z	20 \| good	1.192 \| good	4.843 \| good	21.933 \| good	1.541 \| good	9.667 \| good	0.132 \| good
2025-09-12T13:00:00.000Z	20 \| good	3.386 \| good	14.709 \| good	22.206 \| good	1.547 \| good	9.415 \| good	0.142 \| good
2025-09-12T14:00:00.000Z	20 \| good	3.327 \| good	14.496 \| good	22.025 \| good	1.554 \| good	9.163 \| good	0.153 \| good
2025-09-12T15:00:00.000Z	22 \| good	4.062 \| good	17.795 \| good	22.226 \| good	1.56 \| good	8.911 \| good	0.164 \| good
2025-09-12T16:00:00.000Z	27 \| good	5.024 \| good	21.506 \| good	24.71 \| good	1.464 \| good	7.015 \| good	0.148 \| good
2025-09-12T17:00:00.000Z	27 \| good	5.103 \| good	21.839 \| good	28.469 \| good	1.367 \| good	5.119 \| good	0.132 \| good

Live air quality index in Costa Mesa, California today

Major air pollutants in Costa Mesa, California

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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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 Costa Mesa, California at the moment?

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

What is the ozone (O₃) level in Costa Mesa, California at the moment?

What is the nitrogen dioxide (NO₂) level in Costa Mesa, California at the moment?