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

The PM10 concentration in Monrovia, California is 8.387 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 0.244 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 38.637 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 5.877 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 1.774 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)

1.77 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

8.39 μg/m³

155

255

425

605+

Ozone (O₃)

38.64 ppb

201

201+

Sulfur Dioxide (SO₂)

0.24 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

5.88 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.22 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

Monrovia, California

Get Live Pollen Counts

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
2026-10-20T23:00:00.000Z	64 \| moderate	8.926 \| good	33.135 \| good	59.339 \| fine	0.335 \| good	3.554 \| good	0.278 \| good
2026-10-21T00:00:00.000Z	46 \| good	7.349 \| good	34.838 \| good	50.497 \| good	0.356 \| good	6.108 \| good	0.257 \| good
2026-10-21T01:00:00.000Z	43 \| good	6.698 \| good	21.176 \| good	45.907 \| good	0.365 \| good	6.865 \| good	0.3 \| good
2026-10-21T02:00:00.000Z	39 \| good	6.279 \| good	31.932 \| good	42.011 \| good	0.368 \| good	6.863 \| good	0.299 \| good
2026-10-21T03:00:00.000Z	33 \| good	5.671 \| good	24.103 \| good	30.002 \| good	0.974 \| good	10.116 \| good	0.152 \| good
2026-10-21T04:00:00.000Z	33 \| good	6.093 \| good	23.019 \| good	35.491 \| good	0.364 \| good	7.531 \| good	0.213 \| good
2026-10-21T05:00:00.000Z	32 \| good	5.447 \| good	25.564 \| good	34.662 \| good	0.699 \| good	7.29 \| good	0.229 \| good
2026-10-21T06:00:00.000Z	33 \| good	6.108 \| good	26.392 \| good	27 \| good	0.351 \| good	3.777 \| good	0.236 \| good
2026-10-21T07:00:00.000Z	33 \| good	6.084 \| good	23.392 \| good	28.965 \| good	0.351 \| good	4.047 \| good	0.236 \| good
2026-10-21T08:00:00.000Z	27 \| good	5.113 \| good	26.971 \| good	25.28 \| good	0.341 \| good	6.228 \| good	0.257 \| good
2026-10-21T09:00:00.000Z	27 \| good	5.027 \| good	27.406 \| good	20.304 \| good	0.444 \| good	9.944 \| good	0.208 \| good
2026-10-21T10:00:00.000Z	38 \| good	6.631 \| good	19.304 \| good	12.088 \| good	0.381 \| good	12.038 \| good	0.242 \| good
2026-10-21T11:00:00.000Z	27 \| good	5.009 \| good	22.055 \| good	15.808 \| good	0.395 \| good	12.151 \| good	0.28 \| good
2026-10-21T12:00:00.000Z	27 \| good	5.116 \| good	22.319 \| good	15.865 \| good	0.433 \| good	11.515 \| good	0.293 \| good
2026-10-21T13:00:00.000Z	27 \| good	4.784 \| good	18.379 \| good	16.727 \| good	0.433 \| good	10.796 \| good	0.293 \| good
2026-10-21T14:00:00.000Z	22 \| good	3.594 \| good	15.457 \| good	20.355 \| good	0.438 \| good	15.796 \| good	0.486 \| good
2026-10-21T15:00:00.000Z	38 \| good	7.219 \| good	22.218 \| good	26.795 \| good	0.54 \| good	16.72 \| good	0.541 \| good
2026-10-21T16:00:00.000Z	49 \| good	8.75 \| good	41.692 \| good	22.581 \| good	0.499 \| good	23.282 \| good	0.535 \| good
2026-10-21T17:00:00.000Z	49 \| good	9.445 \| good	36.499 \| good	26.919 \| good	0.492 \| good	14.603 \| good	0.403 \| good
2026-10-21T18:00:00.000Z	49 \| good	8.871 \| good	34.402 \| good	27.718 \| good	0.37 \| good	10.005 \| good	0.328 \| good
2026-10-21T19:00:00.000Z	49 \| good	8.829 \| good	27.786 \| good	36.408 \| good	0.53 \| good	10.933 \| good	0.308 \| good
2026-10-21T20:00:00.000Z	49 \| good	9.092 \| good	31.081 \| good	40.809 \| good	0.469 \| good	9.745 \| good	0.268 \| good
2026-10-21T21:00:00.000Z	52 \| moderate	9.586 \| good	26.691 \| good	44.792 \| good	0.535 \| good	9.686 \| good	0.292 \| good
2026-10-21T22:00:00.000Z	44 \| good	7.678 \| good	36.84 \| good	42.507 \| good	0.468 \| good	11.853 \| good	0.251 \| good
2026-10-21T23:00:00.000Z	38 \| good	7.399 \| good	20.512 \| good	34.237 \| good	0.412 \| good	11.046 \| good	0.301 \| good
2026-10-22T00:00:00.000Z	52 \| moderate	10.012 \| good	35.514 \| good	28.177 \| good	0.429 \| good	16.841 \| good	0.336 \| good
2026-10-22T01:00:00.000Z	49 \| good	8.512 \| good	22.58 \| good	25.985 \| good	0.396 \| good	10.472 \| good	0.378 \| good
2026-10-22T02:00:00.000Z	38 \| good	6.838 \| good	21.007 \| good	25.948 \| good	0.422 \| good	16.59 \| good	0.372 \| good
2026-10-22T03:00:00.000Z	44 \| good	7.808 \| good	33.988 \| good	34.364 \| good	0.517 \| good	12.727 \| good	0.136 \| good
2026-10-22T04:00:00.000Z	44 \| good	8.294 \| good	24.785 \| good	30.131 \| good	0.362 \| good	8.271 \| good	0.264 \| good
2026-10-22T05:00:00.000Z	33 \| good	5.569 \| good	17.593 \| good	27.279 \| good	0.633 \| good	6.547 \| good	0.242 \| good
2026-10-22T06:00:00.000Z	27 \| good	4.82 \| good	15.394 \| good	28.65 \| good	0.254 \| good	5.293 \| good	0.241 \| good
2026-10-22T07:00:00.000Z	33 \| good	5.552 \| good	12.311 \| good	24.994 \| good	0.254 \| good	5.054 \| good	0.241 \| good
2026-10-22T08:00:00.000Z	25 \| good	2.759 \| good	9.493 \| good	27.162 \| good	0.294 \| good	6.701 \| good	0.186 \| good
2026-10-22T09:00:00.000Z	24 \| good	2.033 \| good	8.442 \| good	25.749 \| good	0.376 \| good	2.658 \| good	0.142 \| good
2026-10-22T10:00:00.000Z	23 \| good	2.4 \| good	9.883 \| good	24.88 \| good	0.294 \| good	2.65 \| good	0.142 \| good
2026-10-22T11:00:00.000Z	22 \| good	2.262 \| good	9.253 \| good	23.676 \| good	0.351 \| good	9.533 \| good	0.23 \| good
2026-10-22T12:00:00.000Z	22 \| good	3.862 \| good	10.333 \| good	23.755 \| good	0.294 \| good	9.023 \| good	0.264 \| good
2026-10-22T13:00:00.000Z	20 \| good	2.105 \| good	11.762 \| good	22.072 \| good	0.294 \| good	12.843 \| good	0.264 \| good
2026-10-22T14:00:00.000Z	21 \| good	2.024 \| good	6.537 \| good	22.971 \| good	0.294 \| good	13.88 \| good	0.432 \| good
2026-10-22T15:00:00.000Z	19 \| good	1.86 \| good	7.764 \| good	19.975 \| good	0.259 \| good	17.707 \| good	0.515 \| good
2026-10-22T16:00:00.000Z	27 \| good	2.161 \| good	8.418 \| good	28.65 \| good	0.348 \| good	14.723 \| good	0.51 \| good
2026-10-22T17:00:00.000Z	21 \| good	3.05 \| good	9.92 \| good	23.245 \| good	0.308 \| good	7.156 \| good	0.329 \| good
2026-10-22T18:00:00.000Z	28 \| good	3.438 \| good	6.939 \| good	29.645 \| good	0.267 \| good	3.645 \| good	0.257 \| good
2026-10-22T19:00:00.000Z	30 \| good	2.888 \| good	9.158 \| good	31.831 \| good	0.236 \| good	5.57 \| good	0.235 \| good
2026-10-22T20:00:00.000Z	35 \| good	2.063 \| good	8.083 \| good	38.176 \| good	0.257 \| good	5.933 \| good	0.209 \| good
2026-10-22T21:00:00.000Z	36 \| good	1.774 \| good	8.387 \| good	38.637 \| good	0.244 \| good	5.877 \| good	0.219 \| good
2026-10-22T22:00:00.000Z	36 \| good	1.774 \| good	8.387 \| good	38.637 \| good	0.244 \| good	5.877 \| good	0.219 \| good
2026-10-22T23:00:00.000Z	38 \| good	4.037 \| good	17.814 \| good	40.794 \| good	0.879 \| good	3.168 \| good	0.141 \| good
2026-10-23T00:00:00.000Z	38 \| good	2.166 \| good	9.007 \| good	40.581 \| good	1.003 \| good	4.193 \| good	0.145 \| good
2026-10-23T01:00:00.000Z	31 \| good	3.229 \| good	13.997 \| good	33.782 \| good	1.112 \| good	6.383 \| good	0.151 \| good
2026-10-23T02:00:00.000Z	27 \| good	3.636 \| good	15.887 \| good	29.048 \| good	1.219 \| good	12.848 \| good	0.173 \| good
2026-10-23T03:00:00.000Z	33 \| good	6.413 \| good	28.26 \| good	31.047 \| good	1.355 \| good	19.799 \| good	0.194 \| good
2026-10-23T04:00:00.000Z	26 \| good	3.102 \| good	13.562 \| good	27.68 \| good	1.484 \| good	25.617 \| good	0.212 \| good
2026-10-23T05:00:00.000Z	25 \| good	3.752 \| good	16.203 \| good	26.457 \| good	1.603 \| good	27.443 \| good	0.227 \| good
2026-10-23T06:00:00.000Z	27 \| good	4.854 \| good	20.991 \| good	23.915 \| good	1.596 \| good	27.393 \| good	0.229 \| good
2026-10-23T07:00:00.000Z	24 \| good	4.003 \| good	17.302 \| good	24.003 \| good	1.52 \| good	25.045 \| good	0.219 \| good
2026-10-23T08:00:00.000Z	21 \| good	2.983 \| good	12.45 \| good	23.19 \| good	1.475 \| good	19.552 \| good	0.202 \| good
2026-10-23T09:00:00.000Z	20 \| good	1.871 \| good	7.668 \| good	21.947 \| good	1.358 \| good	16.206 \| good	0.191 \| good
2026-10-23T10:00:00.000Z	23 \| good	0.731 \| good	2.85 \| good	24.859 \| good	1.228 \| good	12.723 \| good	0.18 \| good
2026-10-23T11:00:00.000Z	23 \| good	0.672 \| good	2.782 \| good	25.116 \| good	1.092 \| good	11.78 \| good	0.176 \| good
2026-10-23T12:00:00.000Z	17 \| good	0.915 \| good	3.251 \| good	18.228 \| good	1.021 \| good	11.506 \| good	0.175 \| good
2026-10-23T13:00:00.000Z	19 \| good	0.638 \| good	2.249 \| good	21.227 \| good	0.964 \| good	9.406 \| good	0.166 \| good
2026-10-23T14:00:00.000Z	20 \| good	0.881 \| good	3.356 \| good	21.872 \| good	0.962 \| good	11.565 \| good	0.173 \| good
2026-10-23T15:00:00.000Z	22 \| good	2.111 \| good	8.766 \| good	23.917 \| good	0.968 \| good	11.779 \| good	0.183 \| good
2026-10-23T16:00:00.000Z	24 \| good	1.506 \| good	5.979 \| good	26.142 \| good	0.859 \| good	5.672 \| good	0.152 \| good
2026-10-23T17:00:00.000Z	25 \| good	1.718 \| good	6.787 \| good	27.233 \| good	0.838 \| good	4.123 \| good	0.143 \| good
2026-10-23T18:00:00.000Z	27 \| good	1.544 \| good	6.392 \| good	29.277 \| good	0.894 \| good	3.962 \| good	0.138 \| good
2026-10-23T19:00:00.000Z	32 \| good	2.139 \| good	8.447 \| good	34.601 \| good	0.997 \| good	3.974 \| good	0.138 \| good
2026-10-23T20:00:00.000Z	37 \| good	3.918 \| good	17.042 \| good	39.79 \| good	1.027 \| good	3.488 \| good	0.135 \| good
2026-10-23T21:00:00.000Z	42 \| good	5.788 \| good	25.229 \| good	44.586 \| good	1.003 \| good	3.322 \| good	0.134 \| good
2026-10-23T22:00:00.000Z	44 \| good	5.816 \| good	25.306 \| good	46.707 \| good	0.994 \| good	3.167 \| good	0.133 \| good
2026-10-23T23:00:00.000Z	45 \| good	6.045 \| good	27.164 \| good	48.852 \| good	1.062 \| good	3.595 \| good	0.134 \| good
2026-10-24T00:00:00.000Z	45 \| good	7.723 \| good	34.111 \| good	48.613 \| good	1.169 \| good	4.538 \| good	0.137 \| good
2026-10-24T01:00:00.000Z	44 \| good	8.391 \| good	36.819 \| good	43.733 \| good	1.233 \| good	7.779 \| good	0.147 \| good
2026-10-24T02:00:00.000Z	49 \| good	8.679 \| good	38.3 \| good	36.708 \| good	1.306 \| good	15.697 \| good	0.173 \| good
2026-10-24T03:00:00.000Z	52 \| moderate	9.561 \| good	42.84 \| good	34.483 \| good	1.344 \| good	22.184 \| good	0.192 \| good
2026-10-24T04:00:00.000Z	44 \| good	8.343 \| good	36.859 \| good	28.88 \| good	1.4 \| good	26.699 \| good	0.209 \| good
2026-10-24T05:00:00.000Z	49 \| good	9.375 \| good	41.48 \| good	26.006 \| good	1.46 \| good	27.4 \| good	0.222 \| good
2026-10-24T06:00:00.000Z	49 \| good	9.333 \| good	41.328 \| good	21.466 \| good	1.493 \| good	27.591 \| good	0.229 \| good
2026-10-24T07:00:00.000Z	44 \| good	8.14 \| good	35.731 \| good	21.767 \| good	1.442 \| good	26.822 \| good	0.237 \| good
2026-10-24T08:00:00.000Z	44 \| good	7.544 \| good	33.122 \| good	22.374 \| good	1.292 \| good	25.377 \| good	0.235 \| good
2026-10-24T09:00:00.000Z	33 \| good	6.308 \| good	28.388 \| good	20.59 \| good	1.15 \| good	23.817 \| good	0.231 \| good
2026-10-24T10:00:00.000Z	27 \| good	4.949 \| good	21.298 \| good	17.87 \| good	1.003 \| good	22.177 \| good	0.229 \| good
2026-10-24T11:00:00.000Z	20 \| good	3.424 \| good	14.291 \| good	16.202 \| good	0.868 \| good	20.597 \| good	0.227 \| good
2026-10-24T12:00:00.000Z	18 \| good	2.847 \| good	11.635 \| good	18.186 \| good	0.758 \| good	19.195 \| good	0.224 \| good
2026-10-24T13:00:00.000Z	22 \| good	4.107 \| good	18.068 \| good	19.642 \| good	0.675 \| good	18.097 \| good	0.223 \| good
2026-10-24T14:00:00.000Z	22 \| good	3.889 \| good	16.096 \| good	21.219 \| good	0.663 \| good	17.659 \| good	0.229 \| good
2026-10-24T15:00:00.000Z	38 \| good	7.13 \| good	31.438 \| good	19.849 \| good	0.673 \| good	15.179 \| good	0.242 \| good
2026-10-24T16:00:00.000Z	38 \| good	6.561 \| good	29.166 \| good	22.229 \| good	0.691 \| good	12.624 \| good	0.242 \| good
2026-10-24T17:00:00.000Z	33 \| good	6.38 \| good	28.013 \| good	29.863 \| good	0.941 \| good	9.532 \| good	0.18 \| good
2026-10-24T18:00:00.000Z	31 \| good	5.226 \| good	22.638 \| good	33.449 \| good	1.433 \| good	6.63 \| good	0.155 \| good
2026-10-24T19:00:00.000Z	36 \| good	5.916 \| good	25.653 \| good	39.216 \| good	1.557 \| good	5.632 \| good	0.149 \| good
2026-10-24T20:00:00.000Z	42 \| good	7.085 \| good	31.175 \| good	45.025 \| good	1.589 \| good	5.194 \| good	0.147 \| good
2026-10-24T21:00:00.000Z	47 \| good	8.292 \| good	36.359 \| good	50.586 \| good	1.63 \| good	5.026 \| good	0.147 \| good
2026-10-24T22:00:00.000Z	50 \| good	9.079 \| good	40.573 \| good	54.212 \| good	1.715 \| good	5.14 \| good	0.148 \| good

Monrovia

Get reliable air quality data to drive your business

Monrovia, 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

Air quality levels in US

Check live rankings of places in the USA affected by air pollution.

View Polluted Cities

Check live rankings of places in the USA with the cleanest air.

View Clean Cities

Frequently asked questions

How often is air quality information updated for 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 12:00:00 on 2026-10-22.

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 2026-10-22.

What is the AQI in Monrovia, California right now?

As of now, the AQI in Monrovia, California is 36, indicating Good conditions.

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

Monrovia, California air has the highest levels of O3.

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 1.774 μg/m³.

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

The PM₁₀ concentration in Monrovia, California is 8.387 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 0.219 ppm.

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

Currently, Monrovia, California has a sulfur dioxide (SO₂) concentration of 0.244 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 38.637 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 5.877 ppb.

Certified

APIs

Refund Policy

Historical Climate Data

Terms & Conditions

Refund Policy

Terms & Conditions

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-10-20T23:00:00.000Z	64 \| moderate	8.926 \| good	33.135 \| good	59.339 \| fine	0.335 \| good	3.554 \| good	0.278 \| good
2026-10-21T00:00:00.000Z	46 \| good	7.349 \| good	34.838 \| good	50.497 \| good	0.356 \| good	6.108 \| good	0.257 \| good
2026-10-21T01:00:00.000Z	43 \| good	6.698 \| good	21.176 \| good	45.907 \| good	0.365 \| good	6.865 \| good	0.3 \| good
2026-10-21T02:00:00.000Z	39 \| good	6.279 \| good	31.932 \| good	42.011 \| good	0.368 \| good	6.863 \| good	0.299 \| good
2026-10-21T03:00:00.000Z	33 \| good	5.671 \| good	24.103 \| good	30.002 \| good	0.974 \| good	10.116 \| good	0.152 \| good
2026-10-21T04:00:00.000Z	33 \| good	6.093 \| good	23.019 \| good	35.491 \| good	0.364 \| good	7.531 \| good	0.213 \| good
2026-10-21T05:00:00.000Z	32 \| good	5.447 \| good	25.564 \| good	34.662 \| good	0.699 \| good	7.29 \| good	0.229 \| good
2026-10-21T06:00:00.000Z	33 \| good	6.108 \| good	26.392 \| good	27 \| good	0.351 \| good	3.777 \| good	0.236 \| good
2026-10-21T07:00:00.000Z	33 \| good	6.084 \| good	23.392 \| good	28.965 \| good	0.351 \| good	4.047 \| good	0.236 \| good
2026-10-21T08:00:00.000Z	27 \| good	5.113 \| good	26.971 \| good	25.28 \| good	0.341 \| good	6.228 \| good	0.257 \| good
2026-10-21T09:00:00.000Z	27 \| good	5.027 \| good	27.406 \| good	20.304 \| good	0.444 \| good	9.944 \| good	0.208 \| good
2026-10-21T10:00:00.000Z	38 \| good	6.631 \| good	19.304 \| good	12.088 \| good	0.381 \| good	12.038 \| good	0.242 \| good
2026-10-21T11:00:00.000Z	27 \| good	5.009 \| good	22.055 \| good	15.808 \| good	0.395 \| good	12.151 \| good	0.28 \| good
2026-10-21T12:00:00.000Z	27 \| good	5.116 \| good	22.319 \| good	15.865 \| good	0.433 \| good	11.515 \| good	0.293 \| good
2026-10-21T13:00:00.000Z	27 \| good	4.784 \| good	18.379 \| good	16.727 \| good	0.433 \| good	10.796 \| good	0.293 \| good
2026-10-21T14:00:00.000Z	22 \| good	3.594 \| good	15.457 \| good	20.355 \| good	0.438 \| good	15.796 \| good	0.486 \| good
2026-10-21T15:00:00.000Z	38 \| good	7.219 \| good	22.218 \| good	26.795 \| good	0.54 \| good	16.72 \| good	0.541 \| good
2026-10-21T16:00:00.000Z	49 \| good	8.75 \| good	41.692 \| good	22.581 \| good	0.499 \| good	23.282 \| good	0.535 \| good
2026-10-21T17:00:00.000Z	49 \| good	9.445 \| good	36.499 \| good	26.919 \| good	0.492 \| good	14.603 \| good	0.403 \| good
2026-10-21T18:00:00.000Z	49 \| good	8.871 \| good	34.402 \| good	27.718 \| good	0.37 \| good	10.005 \| good	0.328 \| good
2026-10-21T19:00:00.000Z	49 \| good	8.829 \| good	27.786 \| good	36.408 \| good	0.53 \| good	10.933 \| good	0.308 \| good
2026-10-21T20:00:00.000Z	49 \| good	9.092 \| good	31.081 \| good	40.809 \| good	0.469 \| good	9.745 \| good	0.268 \| good
2026-10-21T21:00:00.000Z	52 \| moderate	9.586 \| good	26.691 \| good	44.792 \| good	0.535 \| good	9.686 \| good	0.292 \| good
2026-10-21T22:00:00.000Z	44 \| good	7.678 \| good	36.84 \| good	42.507 \| good	0.468 \| good	11.853 \| good	0.251 \| good
2026-10-21T23:00:00.000Z	38 \| good	7.399 \| good	20.512 \| good	34.237 \| good	0.412 \| good	11.046 \| good	0.301 \| good
2026-10-22T00:00:00.000Z	52 \| moderate	10.012 \| good	35.514 \| good	28.177 \| good	0.429 \| good	16.841 \| good	0.336 \| good
2026-10-22T01:00:00.000Z	49 \| good	8.512 \| good	22.58 \| good	25.985 \| good	0.396 \| good	10.472 \| good	0.378 \| good
2026-10-22T02:00:00.000Z	38 \| good	6.838 \| good	21.007 \| good	25.948 \| good	0.422 \| good	16.59 \| good	0.372 \| good
2026-10-22T03:00:00.000Z	44 \| good	7.808 \| good	33.988 \| good	34.364 \| good	0.517 \| good	12.727 \| good	0.136 \| good
2026-10-22T04:00:00.000Z	44 \| good	8.294 \| good	24.785 \| good	30.131 \| good	0.362 \| good	8.271 \| good	0.264 \| good
2026-10-22T05:00:00.000Z	33 \| good	5.569 \| good	17.593 \| good	27.279 \| good	0.633 \| good	6.547 \| good	0.242 \| good
2026-10-22T06:00:00.000Z	27 \| good	4.82 \| good	15.394 \| good	28.65 \| good	0.254 \| good	5.293 \| good	0.241 \| good
2026-10-22T07:00:00.000Z	33 \| good	5.552 \| good	12.311 \| good	24.994 \| good	0.254 \| good	5.054 \| good	0.241 \| good
2026-10-22T08:00:00.000Z	25 \| good	2.759 \| good	9.493 \| good	27.162 \| good	0.294 \| good	6.701 \| good	0.186 \| good
2026-10-22T09:00:00.000Z	24 \| good	2.033 \| good	8.442 \| good	25.749 \| good	0.376 \| good	2.658 \| good	0.142 \| good
2026-10-22T10:00:00.000Z	23 \| good	2.4 \| good	9.883 \| good	24.88 \| good	0.294 \| good	2.65 \| good	0.142 \| good
2026-10-22T11:00:00.000Z	22 \| good	2.262 \| good	9.253 \| good	23.676 \| good	0.351 \| good	9.533 \| good	0.23 \| good
2026-10-22T12:00:00.000Z	22 \| good	3.862 \| good	10.333 \| good	23.755 \| good	0.294 \| good	9.023 \| good	0.264 \| good
2026-10-22T13:00:00.000Z	20 \| good	2.105 \| good	11.762 \| good	22.072 \| good	0.294 \| good	12.843 \| good	0.264 \| good
2026-10-22T14:00:00.000Z	21 \| good	2.024 \| good	6.537 \| good	22.971 \| good	0.294 \| good	13.88 \| good	0.432 \| good
2026-10-22T15:00:00.000Z	19 \| good	1.86 \| good	7.764 \| good	19.975 \| good	0.259 \| good	17.707 \| good	0.515 \| good
2026-10-22T16:00:00.000Z	27 \| good	2.161 \| good	8.418 \| good	28.65 \| good	0.348 \| good	14.723 \| good	0.51 \| good
2026-10-22T17:00:00.000Z	21 \| good	3.05 \| good	9.92 \| good	23.245 \| good	0.308 \| good	7.156 \| good	0.329 \| good
2026-10-22T18:00:00.000Z	28 \| good	3.438 \| good	6.939 \| good	29.645 \| good	0.267 \| good	3.645 \| good	0.257 \| good
2026-10-22T19:00:00.000Z	30 \| good	2.888 \| good	9.158 \| good	31.831 \| good	0.236 \| good	5.57 \| good	0.235 \| good
2026-10-22T20:00:00.000Z	35 \| good	2.063 \| good	8.083 \| good	38.176 \| good	0.257 \| good	5.933 \| good	0.209 \| good
2026-10-22T21:00:00.000Z	36 \| good	1.774 \| good	8.387 \| good	38.637 \| good	0.244 \| good	5.877 \| good	0.219 \| good
2026-10-22T22:00:00.000Z	36 \| good	1.774 \| good	8.387 \| good	38.637 \| good	0.244 \| good	5.877 \| good	0.219 \| good
2026-10-22T23:00:00.000Z	38 \| good	4.037 \| good	17.814 \| good	40.794 \| good	0.879 \| good	3.168 \| good	0.141 \| good
2026-10-23T00:00:00.000Z	38 \| good	2.166 \| good	9.007 \| good	40.581 \| good	1.003 \| good	4.193 \| good	0.145 \| good
2026-10-23T01:00:00.000Z	31 \| good	3.229 \| good	13.997 \| good	33.782 \| good	1.112 \| good	6.383 \| good	0.151 \| good
2026-10-23T02:00:00.000Z	27 \| good	3.636 \| good	15.887 \| good	29.048 \| good	1.219 \| good	12.848 \| good	0.173 \| good
2026-10-23T03:00:00.000Z	33 \| good	6.413 \| good	28.26 \| good	31.047 \| good	1.355 \| good	19.799 \| good	0.194 \| good
2026-10-23T04:00:00.000Z	26 \| good	3.102 \| good	13.562 \| good	27.68 \| good	1.484 \| good	25.617 \| good	0.212 \| good
2026-10-23T05:00:00.000Z	25 \| good	3.752 \| good	16.203 \| good	26.457 \| good	1.603 \| good	27.443 \| good	0.227 \| good
2026-10-23T06:00:00.000Z	27 \| good	4.854 \| good	20.991 \| good	23.915 \| good	1.596 \| good	27.393 \| good	0.229 \| good
2026-10-23T07:00:00.000Z	24 \| good	4.003 \| good	17.302 \| good	24.003 \| good	1.52 \| good	25.045 \| good	0.219 \| good
2026-10-23T08:00:00.000Z	21 \| good	2.983 \| good	12.45 \| good	23.19 \| good	1.475 \| good	19.552 \| good	0.202 \| good
2026-10-23T09:00:00.000Z	20 \| good	1.871 \| good	7.668 \| good	21.947 \| good	1.358 \| good	16.206 \| good	0.191 \| good
2026-10-23T10:00:00.000Z	23 \| good	0.731 \| good	2.85 \| good	24.859 \| good	1.228 \| good	12.723 \| good	0.18 \| good
2026-10-23T11:00:00.000Z	23 \| good	0.672 \| good	2.782 \| good	25.116 \| good	1.092 \| good	11.78 \| good	0.176 \| good
2026-10-23T12:00:00.000Z	17 \| good	0.915 \| good	3.251 \| good	18.228 \| good	1.021 \| good	11.506 \| good	0.175 \| good
2026-10-23T13:00:00.000Z	19 \| good	0.638 \| good	2.249 \| good	21.227 \| good	0.964 \| good	9.406 \| good	0.166 \| good
2026-10-23T14:00:00.000Z	20 \| good	0.881 \| good	3.356 \| good	21.872 \| good	0.962 \| good	11.565 \| good	0.173 \| good
2026-10-23T15:00:00.000Z	22 \| good	2.111 \| good	8.766 \| good	23.917 \| good	0.968 \| good	11.779 \| good	0.183 \| good
2026-10-23T16:00:00.000Z	24 \| good	1.506 \| good	5.979 \| good	26.142 \| good	0.859 \| good	5.672 \| good	0.152 \| good
2026-10-23T17:00:00.000Z	25 \| good	1.718 \| good	6.787 \| good	27.233 \| good	0.838 \| good	4.123 \| good	0.143 \| good
2026-10-23T18:00:00.000Z	27 \| good	1.544 \| good	6.392 \| good	29.277 \| good	0.894 \| good	3.962 \| good	0.138 \| good
2026-10-23T19:00:00.000Z	32 \| good	2.139 \| good	8.447 \| good	34.601 \| good	0.997 \| good	3.974 \| good	0.138 \| good
2026-10-23T20:00:00.000Z	37 \| good	3.918 \| good	17.042 \| good	39.79 \| good	1.027 \| good	3.488 \| good	0.135 \| good
2026-10-23T21:00:00.000Z	42 \| good	5.788 \| good	25.229 \| good	44.586 \| good	1.003 \| good	3.322 \| good	0.134 \| good
2026-10-23T22:00:00.000Z	44 \| good	5.816 \| good	25.306 \| good	46.707 \| good	0.994 \| good	3.167 \| good	0.133 \| good
2026-10-23T23:00:00.000Z	45 \| good	6.045 \| good	27.164 \| good	48.852 \| good	1.062 \| good	3.595 \| good	0.134 \| good
2026-10-24T00:00:00.000Z	45 \| good	7.723 \| good	34.111 \| good	48.613 \| good	1.169 \| good	4.538 \| good	0.137 \| good
2026-10-24T01:00:00.000Z	44 \| good	8.391 \| good	36.819 \| good	43.733 \| good	1.233 \| good	7.779 \| good	0.147 \| good
2026-10-24T02:00:00.000Z	49 \| good	8.679 \| good	38.3 \| good	36.708 \| good	1.306 \| good	15.697 \| good	0.173 \| good
2026-10-24T03:00:00.000Z	52 \| moderate	9.561 \| good	42.84 \| good	34.483 \| good	1.344 \| good	22.184 \| good	0.192 \| good
2026-10-24T04:00:00.000Z	44 \| good	8.343 \| good	36.859 \| good	28.88 \| good	1.4 \| good	26.699 \| good	0.209 \| good
2026-10-24T05:00:00.000Z	49 \| good	9.375 \| good	41.48 \| good	26.006 \| good	1.46 \| good	27.4 \| good	0.222 \| good
2026-10-24T06:00:00.000Z	49 \| good	9.333 \| good	41.328 \| good	21.466 \| good	1.493 \| good	27.591 \| good	0.229 \| good
2026-10-24T07:00:00.000Z	44 \| good	8.14 \| good	35.731 \| good	21.767 \| good	1.442 \| good	26.822 \| good	0.237 \| good
2026-10-24T08:00:00.000Z	44 \| good	7.544 \| good	33.122 \| good	22.374 \| good	1.292 \| good	25.377 \| good	0.235 \| good
2026-10-24T09:00:00.000Z	33 \| good	6.308 \| good	28.388 \| good	20.59 \| good	1.15 \| good	23.817 \| good	0.231 \| good
2026-10-24T10:00:00.000Z	27 \| good	4.949 \| good	21.298 \| good	17.87 \| good	1.003 \| good	22.177 \| good	0.229 \| good
2026-10-24T11:00:00.000Z	20 \| good	3.424 \| good	14.291 \| good	16.202 \| good	0.868 \| good	20.597 \| good	0.227 \| good
2026-10-24T12:00:00.000Z	18 \| good	2.847 \| good	11.635 \| good	18.186 \| good	0.758 \| good	19.195 \| good	0.224 \| good
2026-10-24T13:00:00.000Z	22 \| good	4.107 \| good	18.068 \| good	19.642 \| good	0.675 \| good	18.097 \| good	0.223 \| good
2026-10-24T14:00:00.000Z	22 \| good	3.889 \| good	16.096 \| good	21.219 \| good	0.663 \| good	17.659 \| good	0.229 \| good
2026-10-24T15:00:00.000Z	38 \| good	7.13 \| good	31.438 \| good	19.849 \| good	0.673 \| good	15.179 \| good	0.242 \| good
2026-10-24T16:00:00.000Z	38 \| good	6.561 \| good	29.166 \| good	22.229 \| good	0.691 \| good	12.624 \| good	0.242 \| good
2026-10-24T17:00:00.000Z	33 \| good	6.38 \| good	28.013 \| good	29.863 \| good	0.941 \| good	9.532 \| good	0.18 \| good
2026-10-24T18:00:00.000Z	31 \| good	5.226 \| good	22.638 \| good	33.449 \| good	1.433 \| good	6.63 \| good	0.155 \| good
2026-10-24T19:00:00.000Z	36 \| good	5.916 \| good	25.653 \| good	39.216 \| good	1.557 \| good	5.632 \| good	0.149 \| good
2026-10-24T20:00:00.000Z	42 \| good	7.085 \| good	31.175 \| good	45.025 \| good	1.589 \| good	5.194 \| good	0.147 \| good
2026-10-24T21:00:00.000Z	47 \| good	8.292 \| good	36.359 \| good	50.586 \| good	1.63 \| good	5.026 \| good	0.147 \| good
2026-10-24T22:00:00.000Z	50 \| good	9.079 \| good	40.573 \| good	54.212 \| good	1.715 \| good	5.14 \| good	0.148 \| good

Live air quality index in Monrovia, California today

Major air pollutants in Monrovia, California

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Monrovia, California air quality forecast and history

Get reliable air quality data to drive your business

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

Air quality in nearby cities

Duarte, California

Arcadia, California

Sierra Madre, California

Temple City, California

Baldwin Park, California

East San Gabriel, California

How accurate is California, USA air quality data?

Air quality levels in US

Frequently asked questions

How often is air quality information updated for Monrovia, California?

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

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

What is the AQI in Monrovia, California right now?

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

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

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

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

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

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

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

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

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

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

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

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