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

The PM10 concentration in Monrovia, California is 35.991 μg/m3 at the moment.

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

Currently, Monrovia, California has a sulfur dioxide (SO2) concentration of 0.686 ppb.

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

The current ozone (O3) level in Monrovia, California at the moment is 21.078 ppm.

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

Nitrogen dioxide (NO2) level in Monrovia, California at the moment is 13.098 ppb.

Live air quality index in Monrovia, California today

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

PM2.5 levels in Monrovia, California are currently 8.322 μg/m3.

Stay updated with real-time air quality in Monrovia, 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

Monrovia, California

Last updated: ... (Local time)

Major air pollutants in Monrovia, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

6.80 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

19.59 μg/m³

155

255

425

605+

Ozone (O₃)

33.94 ppb

201

201+

Sulfur Dioxide (SO₂)

0.37 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

10.49 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.31 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

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

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Monrovia, California

Scroll To Air Quality Map

Track live Monrovia, California air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-02-10T22:00:00.000Z	56 \| moderate	11.875 \| good	39.336 \| good	34.373 \| good	0.375 \| good	6.573 \| good	0.309 \| good
2026-02-10T23:00:00.000Z	38 \| good	7.277 \| good	36.913 \| good	34.367 \| good	0.346 \| good	5.473 \| good	0.281 \| good
2026-02-11T00:00:00.000Z	52 \| moderate	10.173 \| good	46.569 \| good	33.745 \| good	0.393 \| good	4.921 \| good	0.194 \| good
2026-02-11T01:00:00.000Z	44 \| good	7.813 \| good	30.049 \| good	31.381 \| good	0.38 \| good	5.917 \| good	0.236 \| good
2026-02-11T02:00:00.000Z	44 \| good	7.727 \| good	25.455 \| good	32.43 \| good	0.558 \| good	6.168 \| good	0.249 \| good
2026-02-11T03:00:00.000Z	49 \| good	8.503 \| good	26.363 \| good	34.241 \| good	0.373 \| good	6.19 \| good	0.215 \| good
2026-02-11T04:00:00.000Z	49 \| good	9.316 \| good	25.081 \| good	28.787 \| good	0.262 \| good	4.43 \| good	0.236 \| good
2026-02-11T05:00:00.000Z	38 \| good	7.363 \| good	18.439 \| good	31.381 \| good	0.545 \| good	4.977 \| good	0.215 \| good
2026-02-11T06:00:00.000Z	44 \| good	8.356 \| good	29.571 \| good	27.023 \| good	0.276 \| good	5.425 \| good	0.178 \| good
2026-02-11T07:00:00.000Z	49 \| good	8.804 \| good	21.072 \| good	29.202 \| good	0.276 \| good	7.77 \| good	0.178 \| good
2026-02-11T08:00:00.000Z	64 \| moderate	16.436 \| fine	74.601 \| fine	29.366 \| good	0.496 \| good	9.293 \| good	0.194 \| good
2026-02-11T09:00:00.000Z	38 \| good	6.818 \| good	19.915 \| good	34.901 \| good	0.279 \| good	5.286 \| good	0.129 \| good
2026-02-11T10:00:00.000Z	33 \| good	5.014 \| good	34.631 \| good	35.939 \| good	0.499 \| good	7.693 \| good	0.178 \| good
2026-02-11T11:00:00.000Z	32 \| good	3.562 \| good	8.799 \| good	35.164 \| good	0.378 \| good	2.051 \| good	0.1 \| good
2026-02-11T12:00:00.000Z	32 \| good	1.92 \| good	7.902 \| good	34.706 \| good	0.266 \| good	2.237 \| good	0.178 \| good
2026-02-11T13:00:00.000Z	30 \| good	1.391 \| good	8.32 \| good	31.851 \| good	0.26 \| good	1.959 \| good	0.178 \| good
2026-02-11T14:00:00.000Z	30 \| good	1.319 \| good	6.495 \| good	32.118 \| good	0.517 \| good	6.315 \| good	0.221 \| good
2026-02-11T15:00:00.000Z	34 \| good	1.533 \| good	7.001 \| good	36.999 \| good	0.506 \| good	9.25 \| good	0.282 \| good
2026-02-11T16:00:00.000Z	24 \| good	1.535 \| good	8.806 \| good	26.336 \| good	0.306 \| good	9.73 \| good	0.31 \| good
2026-02-11T17:00:00.000Z	29 \| good	2.539 \| good	8.696 \| good	30.894 \| good	0.314 \| good	8.008 \| good	0.287 \| good
2026-02-11T18:00:00.000Z	28 \| good	3.098 \| good	9.348 \| good	29.632 \| good	0.221 \| good	6.126 \| good	0.228 \| good
2026-02-11T19:00:00.000Z	31 \| good	3.098 \| good	5.45 \| good	34.106 \| good	0.252 \| good	3.848 \| good	0.186 \| good
2026-02-11T20:00:00.000Z	32 \| good	2.915 \| good	7.107 \| good	34.799 \| good	0.257 \| good	4.159 \| good	0.248 \| good
2026-02-11T21:00:00.000Z	33 \| good	3.275 \| good	9.752 \| good	36.214 \| good	0.38 \| good	7.823 \| good	0.22 \| good
2026-02-11T22:00:00.000Z	36 \| good	2.829 \| good	9.008 \| good	39.316 \| good	0.34 \| good	5.08 \| good	0.236 \| good
2026-02-11T23:00:00.000Z	35 \| good	4.255 \| good	9.147 \| good	37.72 \| good	0.358 \| good	5.466 \| good	0.215 \| good
2026-02-12T00:00:00.000Z	37 \| good	2.982 \| good	19.358 \| good	39.964 \| good	0.31 \| good	4.642 \| good	0.265 \| good
2026-02-12T01:00:00.000Z	35 \| good	3.863 \| good	11.823 \| good	38.216 \| good	0.251 \| good	6.95 \| good	0.264 \| good
2026-02-12T02:00:00.000Z	34 \| good	3.751 \| good	11.147 \| good	36.714 \| good	0.261 \| good	7.669 \| good	0.29 \| good
2026-02-12T03:00:00.000Z	31 \| good	3.837 \| good	11.916 \| good	32.999 \| good	0.244 \| good	11.523 \| good	0.318 \| good
2026-02-12T04:00:00.000Z	27 \| good	4.752 \| good	15.202 \| good	29.44 \| good	0.326 \| good	11.743 \| good	0.303 \| good
2026-02-12T05:00:00.000Z	27 \| good	4.799 \| good	14.748 \| good	23.637 \| good	0.284 \| good	12.44 \| good	0.478 \| good
2026-02-12T06:00:00.000Z	33 \| good	6.001 \| good	17.159 \| good	25.743 \| good	0.302 \| good	13.084 \| good	0.548 \| good
2026-02-12T07:00:00.000Z	22 \| good	3.666 \| good	19.586 \| good	20.249 \| good	0.273 \| good	13.198 \| good	0.548 \| good
2026-02-12T08:00:00.000Z	33 \| good	5.933 \| good	16.494 \| good	15.295 \| good	0.258 \| good	15.46 \| good	0.489 \| good
2026-02-12T09:00:00.000Z	38 \| good	6.792 \| good	19.846 \| good	17.467 \| good	0.317 \| good	11.515 \| good	0.519 \| good
2026-02-12T10:00:00.000Z	22 \| good	3.844 \| good	12.227 \| good	21.53 \| good	0.31 \| good	10.517 \| good	0.453 \| good
2026-02-12T11:00:00.000Z	27 \| good	4.961 \| good	11.802 \| good	23.688 \| good	0.381 \| good	13.9 \| good	0.476 \| good
2026-02-12T12:00:00.000Z	22 \| good	4.405 \| good	9.444 \| good	23.308 \| good	0.357 \| good	12.32 \| good	0.471 \| good
2026-02-12T13:00:00.000Z	24 \| good	4.126 \| good	9.846 \| good	25.754 \| good	0.383 \| good	9.1 \| good	0.471 \| good
2026-02-12T14:00:00.000Z	27 \| good	4.864 \| good	13.079 \| good	25.18 \| good	0.443 \| good	12.074 \| good	0.577 \| good
2026-02-12T15:00:00.000Z	16 \| good	3.488 \| good	13.301 \| good	16.407 \| good	0.623 \| good	16.23 \| good	0.699 \| good
2026-02-12T16:00:00.000Z	44 \| good	8.034 \| good	15.049 \| good	13.883 \| good	0.798 \| good	15.868 \| good	0.745 \| good
2026-02-12T17:00:00.000Z	44 \| good	7.749 \| good	24.735 \| good	16.712 \| good	0.753 \| good	18.499 \| good	0.55 \| good
2026-02-12T18:00:00.000Z	27 \| good	5.166 \| good	17.107 \| good	23.79 \| good	0.609 \| good	14.931 \| good	0.422 \| good
2026-02-12T19:00:00.000Z	44 \| good	8.322 \| good	35.991 \| good	21.078 \| good	0.686 \| good	13.098 \| good	0.386 \| good
2026-02-12T20:00:00.000Z	44 \| good	7.797 \| good	21.492 \| good	30.532 \| good	0.558 \| good	12.168 \| good	0.31 \| good
2026-02-12T21:00:00.000Z	38 \| good	6.798 \| good	19.594 \| good	33.936 \| good	0.37 \| good	10.492 \| good	0.31 \| good
2026-02-12T21:00:00.000Z	38 \| good	6.798 \| good	19.594 \| good	33.936 \| good	0.37 \| good	10.492 \| good	0.31 \| good
2026-02-12T20:00:00.000Z	58 \| moderate	13.261 \| fine	59.401 \| fine	40.655 \| good	4.46 \| good	11.686 \| good	0.183 \| good
2026-02-12T21:00:00.000Z	54 \| moderate	11.082 \| good	49.091 \| good	43.454 \| good	4.632 \| good	10.852 \| good	0.173 \| good
2026-02-12T22:00:00.000Z	58 \| moderate	12.82 \| fine	57.291 \| fine	44.595 \| good	4.486 \| good	11.177 \| good	0.17 \| good
2026-02-12T23:00:00.000Z	66 \| moderate	17.481 \| fine	77.926 \| fine	43.688 \| good	4.341 \| good	11.501 \| good	0.167 \| good
2026-02-13T00:00:00.000Z	60 \| moderate	13.965 \| fine	61.9 \| fine	38.815 \| good	4.196 \| good	11.825 \| good	0.164 \| good
2026-02-13T01:00:00.000Z	38 \| good	7.109 \| good	31.646 \| good	35.873 \| good	4.036 \| good	18.38 \| good	0.198 \| good
2026-02-13T02:00:00.000Z	38 \| good	6.964 \| good	30.974 \| good	32.536 \| good	3.875 \| good	24.935 \| good	0.232 \| good
2026-02-13T03:00:00.000Z	29 \| good	3.449 \| good	15.153 \| good	26.582 \| good	3.715 \| good	31.49 \| good	0.266 \| good
2026-02-13T04:00:00.000Z	30 \| good	4.588 \| good	20.122 \| good	24.988 \| good	3.95 \| good	32.23 \| good	0.314 \| good
2026-02-13T05:00:00.000Z	31 \| good	2.802 \| good	11.323 \| good	23.381 \| good	4.185 \| good	32.97 \| good	0.362 \| good
2026-02-13T06:00:00.000Z	32 \| good	2.451 \| good	10.4 \| good	23.449 \| good	4.42 \| good	33.71 \| good	0.409 \| good
2026-02-13T07:00:00.000Z	30 \| good	2.628 \| good	11.15 \| good	20.368 \| good	3.912 \| good	31.657 \| good	0.406 \| good
2026-02-13T08:00:00.000Z	28 \| good	3.468 \| good	15.188 \| good	21.621 \| good	3.405 \| good	29.603 \| good	0.403 \| good
2026-02-13T09:00:00.000Z	26 \| good	3.273 \| good	13.712 \| good	23.029 \| good	2.897 \| good	27.55 \| good	0.4 \| good
2026-02-13T10:00:00.000Z	25 \| good	1.841 \| good	7.914 \| good	24.981 \| good	2.611 \| good	25.686 \| good	0.366 \| good
2026-02-13T11:00:00.000Z	23 \| good	1.818 \| good	7.779 \| good	25.136 \| good	2.325 \| good	23.822 \| good	0.331 \| good
2026-02-13T12:00:00.000Z	25 \| good	0.924 \| good	3.796 \| good	26.939 \| good	2.039 \| good	21.958 \| good	0.296 \| good
2026-02-13T13:00:00.000Z	26 \| good	0.756 \| good	3.216 \| good	28.031 \| good	1.93 \| good	21.653 \| good	0.282 \| good
2026-02-13T14:00:00.000Z	25 \| good	0.7 \| good	2.608 \| good	26.639 \| good	1.821 \| good	21.348 \| good	0.268 \| good
2026-02-13T15:00:00.000Z	21 \| good	0.729 \| good	2.671 \| good	22.766 \| good	1.712 \| good	21.044 \| good	0.254 \| good
2026-02-13T16:00:00.000Z	23 \| good	1.41 \| good	5.521 \| good	25.275 \| good	1.811 \| good	19.495 \| good	0.253 \| good
2026-02-13T17:00:00.000Z	29 \| good	2.407 \| good	10.09 \| good	31.334 \| good	1.91 \| good	17.946 \| good	0.253 \| good
2026-02-13T18:00:00.000Z	34 \| good	4.113 \| good	18.132 \| good	36.508 \| good	2.009 \| good	16.397 \| good	0.252 \| good
2026-02-13T19:00:00.000Z	44 \| good	8.128 \| good	35.502 \| good	39.066 \| good	2.394 \| good	15.147 \| good	0.234 \| good
2026-02-13T20:00:00.000Z	54 \| moderate	11.322 \| good	50.668 \| good	42.859 \| good	2.78 \| good	13.896 \| good	0.215 \| good
2026-02-13T21:00:00.000Z	43 \| good	5.25 \| good	22.848 \| good	45.515 \| good	3.166 \| good	12.646 \| good	0.197 \| good
2026-02-13T22:00:00.000Z	43 \| good	5.666 \| good	24.527 \| good	45.834 \| good	3.386 \| good	13.261 \| good	0.194 \| good
2026-02-13T23:00:00.000Z	49 \| good	8.815 \| good	38.584 \| good	45.529 \| good	3.605 \| good	13.876 \| good	0.191 \| good
2026-02-14T00:00:00.000Z	44 \| good	7.767 \| good	34.006 \| good	45.086 \| good	3.825 \| good	14.491 \| good	0.188 \| good
2026-02-14T01:00:00.000Z	37 \| good	5.356 \| good	23.714 \| good	40.183 \| good	3.824 \| good	22.007 \| good	0.237 \| good
2026-02-14T02:00:00.000Z	44 \| good	7.734 \| good	34.191 \| good	32.926 \| good	3.822 \| good	29.522 \| good	0.286 \| good
2026-02-14T03:00:00.000Z	44 \| good	7.854 \| good	34.871 \| good	29.196 \| good	3.821 \| good	37.038 \| good	0.334 \| good
2026-02-14T04:00:00.000Z	44 \| good	7.563 \| good	33.444 \| good	28.224 \| good	3.963 \| good	36.822 \| good	0.353 \| good
2026-02-14T05:00:00.000Z	35 \| good	6.239 \| good	26.887 \| good	26.244 \| good	4.104 \| good	36.606 \| good	0.373 \| good
2026-02-14T06:00:00.000Z	86 \| moderate	28.472 \| fine	30.242 \| good	5.505 \| good	4.401 \| good	37.063 \| good	0.397 \| good
2026-02-14T07:00:00.000Z	34 \| good	3.465 \| good	15.013 \| good	19.523 \| good	4.009 \| good	35.768 \| good	0.377 \| good
2026-02-14T08:00:00.000Z	33 \| good	4.42 \| good	19.572 \| good	20.102 \| good	3.771 \| good	35.146 \| good	0.361 \| good
2026-02-14T09:00:00.000Z	33 \| good	3.842 \| good	15.939 \| good	19.723 \| good	3.534 \| good	34.524 \| good	0.346 \| good
2026-02-14T10:00:00.000Z	52 \| moderate	9.532 \| good	41.667 \| good	18.065 \| good	3.296 \| good	32.454 \| good	0.322 \| good
2026-02-14T11:00:00.000Z	49 \| good	8.922 \| good	39.031 \| good	17.81 \| good	3.059 \| good	30.384 \| good	0.298 \| good
2026-02-14T12:00:00.000Z	69 \| moderate	19.204 \| fine	20.772 \| good	9.366 \| good	2.93 \| good	28.988 \| good	0.278 \| good
2026-02-14T13:00:00.000Z	67 \| moderate	17.922 \| fine	19.308 \| good	8.919 \| good	3.039 \| good	29.25 \| good	0.284 \| good
2026-02-14T14:00:00.000Z	67 \| moderate	17.512 \| fine	18.773 \| good	8.473 \| good	3.148 \| good	29.511 \| good	0.291 \| good
2026-02-14T15:00:00.000Z	71 \| moderate	20.017 \| fine	21.204 \| good	8.026 \| good	3.257 \| good	29.773 \| good	0.298 \| good
2026-02-14T16:00:00.000Z	52 \| moderate	10.028 \| good	44.825 \| good	22.192 \| good	4.028 \| good	25.473 \| good	0.281 \| good
2026-02-14T17:00:00.000Z	44 \| good	8.294 \| good	36.851 \| good	29.716 \| good	4.89 \| good	21.7 \| good	0.267 \| good
2026-02-14T18:00:00.000Z	71 \| moderate	20.278 \| fine	22.807 \| good	30.188 \| good	5.862 \| good	18.383 \| good	0.258 \| good
2026-02-14T19:00:00.000Z	69 \| moderate	18.651 \| fine	21.255 \| good	35.121 \| good	5.642 \| good	15.931 \| good	0.24 \| good

Monrovia

Get reliable air quality data to drive your business

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

0.42ppm

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 Monrovia, California?

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

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

In the past 24 hours, the air quality in Monrovia, California was at its worst at 05:00:00 on 2026-02-12.

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

In the last 24 hours, the best air quality in Monrovia, California was observed at 03:00:00 on 2026-02-12.

What is the AQI in Monrovia, California right now?

As of now, the AQI in Monrovia, California is 44, indicating Good conditions.

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

Monrovia, California air has the highest levels of PM2.5.

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

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

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

PM_2.5 levels in Monrovia, California are currently 8.322 μg/m³.

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

The PM₁₀ concentration in Monrovia, California is 35.991 μg/m³ at the moment.

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

The current carbon monoxide (CO) concentration in Monrovia, California is 0.386 ppm.

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

Currently, Monrovia, California has a sulfur dioxide (SO₂) concentration of 0.686 ppb.

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

The current ozone (O₃) level in Monrovia, California at the moment is 21.078 ppm.

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

Nitrogen dioxide (NO₂) level in Monrovia, California at the moment is 13.098 ppb.

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