What are the current PM10 levels at Rancho Cucamonga, California?

The current PM10 levels in Rancho Cucamonga, California are 21.09 μg/m3.

What are the current sulfur dioxide (SO2) levels at Rancho Cucamonga, California?

The current sulfur dioxide (SO2) levels in Rancho Cucamonga, California are 0.636 ppb.

What are the current ozone (O3) levels at Rancho Cucamonga, California?

The current ozone (O3) levels at Rancho Cucamonga, California is 16.521 ppm.

What are the current nitrogen dioxide (NO2) levels at Rancho Cucamonga, California?

The current nitrogen dioxide (NO2) levels at Rancho Cucamonga, California is 24.068 ppb.

Real-time air quality index in Rancho Cucamonga, California today

Q: What are the current PM2.5 levels in Rancho Cucamonga, California?

The measured PM2.5 levels in Rancho Cucamonga, California at present are 6.036 μg/m3.

Stay updated with real-time air quality in Rancho Cucamonga, 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

Rancho Cucamonga, California

Last updated: ... (Local time)

Common air pollutants in Rancho Cucamonga, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

6.04 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

21.09 μg/m³

155

255

425

605+

Ozone (O₃)

16.52 ppb

201

201+

Sulfur Dioxide (SO₂)

0.64 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

24.07 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.41 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

Rancho Cucamonga, California

Get Live Pollen Counts

Rancho Cucamonga, California

Scroll To Air Quality Map

Track live Rancho Cucamonga, California air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-09-08T09:00:00.000Z	52 \| moderate	10.037 \| good	22.768 \| good	5.353 \| good	0.983 \| good	23.405 \| good	0.425 \| good
2026-09-08T10:00:00.000Z	52 \| moderate	10.239 \| good	19.442 \| good	3.392 \| good	0.89 \| good	20.502 \| good	0.52 \| good
2026-09-08T11:00:00.000Z	52 \| moderate	10.107 \| good	20.086 \| good	4.577 \| good	1.118 \| good	19.896 \| good	0.448 \| good
2026-09-08T12:00:00.000Z	58 \| moderate	12.648 \| fine	22.467 \| good	5.107 \| good	1.003 \| good	20.994 \| good	0.548 \| good
2026-09-08T13:00:00.000Z	56 \| moderate	11.523 \| good	22.668 \| good	5.201 \| good	1.005 \| good	20.994 \| good	0.548 \| good
2026-09-08T14:00:00.000Z	54 \| moderate	11.33 \| good	39.204 \| good	4.721 \| good	1.103 \| good	23.933 \| good	0.666 \| good
2026-09-08T15:00:00.000Z	60 \| moderate	13.965 \| fine	32.266 \| good	5.532 \| good	1.225 \| good	26.946 \| good	0.762 \| good
2026-09-08T16:00:00.000Z	52 \| moderate	10.016 \| good	30.852 \| good	5.249 \| good	1.224 \| good	26.946 \| good	0.761 \| good
2026-09-08T17:00:00.000Z	60 \| moderate	13.5 \| fine	35.027 \| good	10.553 \| good	0.992 \| good	34.002 \| good	0.77 \| good
2026-09-08T18:00:00.000Z	56 \| moderate	12.267 \| fine	37.328 \| good	16.914 \| good	0.985 \| good	34.397 \| good	0.663 \| good
2026-09-08T19:00:00.000Z	56 \| moderate	11.502 \| good	30.511 \| good	31.866 \| good	0.916 \| good	23.986 \| good	0.682 \| good
2026-09-08T20:00:00.000Z	56 \| moderate	12.22 \| fine	44.396 \| good	39.801 \| good	0.768 \| good	22.598 \| good	0.471 \| good
2026-09-08T21:00:00.000Z	44 \| good	8.369 \| good	25.821 \| good	45.358 \| good	0.734 \| good	15.14 \| good	0.358 \| good
2026-09-08T22:00:00.000Z	39 \| good	7.438 \| good	27.039 \| good	42.001 \| good	0.685 \| good	14.149 \| good	0.322 \| good
2026-09-08T23:00:00.000Z	38 \| good	6.713 \| good	29.082 \| good	41.425 \| good	0.742 \| good	11.688 \| good	0.275 \| good
2026-09-09T00:00:00.000Z	42 \| good	4.847 \| good	35.333 \| good	44.715 \| good	0.724 \| good	11.688 \| good	0.247 \| good
2026-09-09T01:00:00.000Z	41 \| good	4.772 \| good	19.562 \| good	43.936 \| good	0.645 \| good	13.618 \| good	0.277 \| good
2026-09-09T02:00:00.000Z	40 \| good	4.796 \| good	19.466 \| good	43.004 \| good	0.643 \| good	13.618 \| good	0.277 \| good
2026-09-09T03:00:00.000Z	66 \| moderate	17.033 \| fine	74.996 \| fine	49.448 \| good	1.126 \| good	14.187 \| good	0.167 \| good
2026-09-09T04:00:00.000Z	33 \| good	6.313 \| good	22.745 \| good	26.317 \| good	0.677 \| good	25.154 \| good	0.35 \| good
2026-09-09T05:00:00.000Z	38 \| good	7.399 \| good	30.828 \| good	15.025 \| good	1.058 \| good	32.579 \| good	0.665 \| good
2026-09-09T06:00:00.000Z	44 \| good	7.88 \| good	26.935 \| good	14.604 \| good	1.064 \| good	32.579 \| good	0.661 \| good
2026-09-09T07:00:00.000Z	38 \| good	7.146 \| good	27.733 \| good	13.858 \| good	1.07 \| good	32.579 \| good	0.661 \| good
2026-09-09T08:00:00.000Z	52 \| moderate	9.927 \| good	35.899 \| good	5.234 \| good	1.324 \| good	30.359 \| good	0.578 \| good
2026-09-09T09:00:00.000Z	54 \| moderate	11.299 \| good	27.712 \| good	11.087 \| good	1.047 \| good	27.494 \| good	0.498 \| good
2026-09-09T10:00:00.000Z	52 \| moderate	9.531 \| good	19.276 \| good	4.838 \| good	0.996 \| good	28.676 \| good	0.512 \| good
2026-09-09T11:00:00.000Z	38 \| good	6.936 \| good	23.307 \| good	4.829 \| good	1.239 \| good	27.773 \| good	0.512 \| good
2026-09-09T12:00:00.000Z	44 \| good	8.291 \| good	17.973 \| good	7.675 \| good	1.197 \| good	25.435 \| good	0.74 \| good
2026-09-09T13:00:00.000Z	54 \| moderate	11.201 \| good	28.117 \| good	8.654 \| good	1.19 \| good	25.435 \| good	0.741 \| good
2026-09-09T14:00:00.000Z	44 \| good	7.936 \| good	27.97 \| good	5.473 \| good	1.495 \| good	23.681 \| good	0.942 \| good
2026-09-09T15:00:00.000Z	66 \| moderate	17.097 \| fine	60.164 \| fine	6.401 \| good	1.499 \| good	33.409 \| good	0.927 \| good
2026-09-09T16:00:00.000Z	58 \| moderate	13.354 \| fine	53.869 \| good	5.386 \| good	1.493 \| good	33.409 \| good	0.917 \| good
2026-09-09T17:00:00.000Z	60 \| moderate	14.305 \| fine	42.261 \| good	16.023 \| good	1.255 \| good	37.841 \| good	0.525 \| good
2026-09-09T18:00:00.000Z	56 \| moderate	11.595 \| good	38.571 \| good	15.889 \| good	1.297 \| good	38.504 \| good	0.53 \| good
2026-09-09T19:00:00.000Z	54 \| moderate	11.387 \| good	53.604 \| good	40.361 \| good	0.997 \| good	24.365 \| good	0.418 \| good
2026-09-09T20:00:00.000Z	54 \| moderate	11.407 \| good	53.865 \| good	41.89 \| good	1.123 \| good	24.34 \| good	0.414 \| good
2026-09-09T21:00:00.000Z	54 \| moderate	8.637 \| good	48.445 \| good	55.879 \| fine	0.916 \| good	13.778 \| good	0.481 \| good
2026-09-09T22:00:00.000Z	54 \| moderate	9.265 \| good	27.006 \| good	56.324 \| fine	0.926 \| good	13.778 \| good	0.481 \| good
2026-09-09T23:00:00.000Z	80 \| moderate	5.475 \| good	17.399 \| good	64.266 \| fine	1.083 \| good	12.383 \| good	0.395 \| good
2026-09-10T00:00:00.000Z	84 \| moderate	5.84 \| good	29.58 \| good	64.88 \| fine	1.031 \| good	18.432 \| good	0.39 \| good
2026-09-10T01:00:00.000Z	77 \| moderate	6.719 \| good	26.506 \| good	62.619 \| fine	1.102 \| good	17.547 \| good	0.328 \| good
2026-09-10T02:00:00.000Z	42 \| good	7.1 \| good	26.831 \| good	44.676 \| good	1.014 \| good	15.743 \| good	0.381 \| good
2026-09-10T03:00:00.000Z	36 \| good	5.282 \| good	20.588 \| good	38.567 \| good	1.021 \| good	14.49 \| good	0.396 \| good
2026-09-10T04:00:00.000Z	29 \| good	5.426 \| good	19.121 \| good	30.627 \| good	0.899 \| good	19.948 \| good	0.528 \| good
2026-09-10T05:00:00.000Z	27 \| good	5.182 \| good	18.169 \| good	22.929 \| good	0.904 \| good	20.569 \| good	0.42 \| good
2026-09-10T06:00:00.000Z	33 \| good	6.191 \| good	23.852 \| good	16.839 \| good	0.61 \| good	24.068 \| good	0.413 \| good
2026-09-10T07:00:00.000Z	33 \| good	6.036 \| good	21.09 \| good	16.521 \| good	0.636 \| good	24.068 \| good	0.409 \| good
2026-09-10T08:00:00.000Z	33 \| good	6.036 \| good	21.09 \| good	16.521 \| good	0.636 \| good	24.068 \| good	0.409 \| good
2026-09-10T09:00:00.000Z	49 \| good	9.357 \| good	41.59 \| good	6.54 \| good	1.393 \| good	21.756 \| good	0.227 \| good
2026-09-10T10:00:00.000Z	52 \| moderate	9.79 \| good	43.637 \| good	6.344 \| good	1.419 \| good	21.74 \| good	0.229 \| good
2026-09-10T11:00:00.000Z	49 \| good	9.1 \| good	40.269 \| good	6.058 \| good	1.445 \| good	22.368 \| good	0.234 \| good
2026-09-10T12:00:00.000Z	49 \| good	8.633 \| good	37.659 \| good	5.664 \| good	1.444 \| good	23.336 \| good	0.241 \| good
2026-09-10T13:00:00.000Z	44 \| good	8.153 \| good	35.629 \| good	6.497 \| good	1.431 \| good	24.135 \| good	0.248 \| good
2026-09-10T14:00:00.000Z	49 \| good	8.511 \| good	37.072 \| good	10.364 \| good	1.428 \| good	23.998 \| good	0.259 \| good
2026-09-10T15:00:00.000Z	49 \| good	8.928 \| good	39.278 \| good	15.847 \| good	1.438 \| good	20.598 \| good	0.268 \| good
2026-09-10T16:00:00.000Z	52 \| moderate	10.372 \| good	45.997 \| good	23.046 \| good	1.438 \| good	10.097 \| good	0.199 \| good
2026-09-10T17:00:00.000Z	54 \| moderate	11.157 \| good	49.299 \| good	36.862 \| good	1.244 \| good	5.817 \| good	0.169 \| good
2026-09-10T18:00:00.000Z	58 \| moderate	12.612 \| fine	57.255 \| fine	52.485 \| good	1.131 \| good	3.393 \| good	0.154 \| good
2026-09-10T19:00:00.000Z	97 \| moderate	12.789 \| fine	57.632 \| fine	68.652 \| fine	1.059 \| good	2.19 \| good	0.148 \| good
2026-09-10T20:00:00.000Z	143 \| sensitive	13.331 \| fine	59.479 \| fine	82.619 \| moderate	1.003 \| good	1.669 \| good	0.144 \| good
2026-09-10T21:00:00.000Z	140 \| sensitive	11.963 \| good	52.984 \| good	82.179 \| moderate	0.957 \| good	1.466 \| good	0.141 \| good
2026-09-10T22:00:00.000Z	126 \| sensitive	10.389 \| good	46.033 \| good	78.024 \| moderate	0.927 \| good	1.436 \| good	0.14 \| good
2026-09-10T23:00:00.000Z	119 \| sensitive	8.749 \| good	38.566 \| good	75.824 \| moderate	0.91 \| good	1.559 \| good	0.139 \| good
2026-09-11T00:00:00.000Z	150 \| sensitive	14.764 \| fine	65.929 \| fine	85.164 \| moderate	0.946 \| good	2.02 \| good	0.141 \| good
2026-09-11T01:00:00.000Z	119 \| sensitive	15.71 \| fine	69.772 \| fine	75.836 \| moderate	1.018 \| good	3.067 \| good	0.145 \| good
2026-09-11T02:00:00.000Z	67 \| moderate	18.147 \| fine	79.775 \| fine	53.18 \| good	1.081 \| good	5.543 \| good	0.155 \| good
2026-09-11T03:00:00.000Z	60 \| moderate	14.425 \| fine	64.415 \| fine	48.457 \| good	1.1 \| good	8.043 \| good	0.166 \| good
2026-09-11T04:00:00.000Z	62 \| moderate	14.776 \| fine	65.93 \| fine	37.768 \| good	1.079 \| good	10.118 \| good	0.173 \| good
2026-09-11T05:00:00.000Z	58 \| moderate	13.24 \| fine	59.816 \| fine	31.62 \| good	1.027 \| good	12.139 \| good	0.181 \| good
2026-09-11T06:00:00.000Z	60 \| moderate	14.329 \| fine	63.93 \| fine	27.346 \| good	0.977 \| good	14.302 \| good	0.189 \| good
2026-09-11T07:00:00.000Z	58 \| moderate	13.129 \| fine	59.544 \| fine	23.255 \| good	0.936 \| good	15.915 \| good	0.198 \| good
2026-09-11T08:00:00.000Z	60 \| moderate	13.729 \| fine	61.788 \| fine	19.102 \| good	0.913 \| good	17.704 \| good	0.206 \| good
2026-09-11T09:00:00.000Z	58 \| moderate	13.282 \| fine	59.692 \| fine	16.845 \| good	0.907 \| good	19.069 \| good	0.213 \| good
2026-09-11T10:00:00.000Z	60 \| moderate	14.356 \| fine	63.943 \| fine	13.917 \| good	0.911 \| good	19.28 \| good	0.215 \| good
2026-09-11T11:00:00.000Z	62 \| moderate	14.519 \| fine	65.013 \| fine	11.723 \| good	0.897 \| good	18.477 \| good	0.214 \| good
2026-09-11T12:00:00.000Z	66 \| moderate	16.57 \| fine	73.165 \| fine	9.469 \| good	0.888 \| good	18.464 \| good	0.214 \| good
2026-09-11T13:00:00.000Z	64 \| moderate	16.067 \| fine	71.533 \| fine	7.09 \| good	0.891 \| good	18.97 \| good	0.216 \| good
2026-09-11T14:00:00.000Z	66 \| moderate	17.061 \| fine	75.457 \| fine	11.769 \| good	0.905 \| good	19.248 \| good	0.223 \| good
2026-09-11T15:00:00.000Z	69 \| moderate	18.691 \| fine	83.051 \| fine	22.657 \| good	0.89 \| good	14.641 \| good	0.218 \| good
2026-09-11T16:00:00.000Z	67 \| moderate	18.301 \| fine	80.534 \| fine	30.31 \| good	0.831 \| good	6.377 \| good	0.164 \| good
2026-09-11T17:00:00.000Z	69 \| moderate	18.905 \| fine	84.018 \| fine	42.009 \| good	0.745 \| good	3.887 \| good	0.152 \| good
2026-09-11T18:00:00.000Z	67 \| moderate	18.445 \| fine	81.29 \| fine	56.011 \| fine	0.659 \| good	2.426 \| good	0.146 \| good
2026-09-11T19:00:00.000Z	87 \| moderate	16.867 \| fine	75.031 \| fine	66.38 \| fine	0.615 \| good	1.706 \| good	0.145 \| good
2026-09-11T20:00:00.000Z	126 \| sensitive	19.8 \| fine	87.582 \| fine	77.537 \| moderate	0.594 \| good	1.383 \| good	0.145 \| good
2026-09-11T21:00:00.000Z	136 \| sensitive	20.476 \| fine	89.476 \| fine	81.273 \| moderate	0.602 \| good	1.261 \| good	0.146 \| good
2026-09-11T22:00:00.000Z	143 \| sensitive	18.645 \| fine	82.485 \| fine	83.208 \| moderate	0.648 \| good	1.282 \| good	0.148 \| good
2026-09-11T23:00:00.000Z	119 \| sensitive	15.624 \| fine	69.91 \| fine	76.356 \| moderate	0.725 \| good	1.44 \| good	0.15 \| good
2026-09-12T00:00:00.000Z	133 \| sensitive	17.155 \| fine	76.006 \| fine	79.733 \| moderate	0.811 \| good	1.808 \| good	0.152 \| good
2026-09-12T01:00:00.000Z	101 \| sensitive	18.36 \| fine	81.352 \| fine	71.001 \| moderate	0.895 \| good	2.411 \| good	0.153 \| good
2026-09-12T02:00:00.000Z	73 \| moderate	20.694 \| fine	91.259 \| fine	47.738 \| good	0.968 \| good	3.769 \| good	0.157 \| good
2026-09-12T03:00:00.000Z	62 \| moderate	14.614 \| fine	65.685 \| fine	43.272 \| good	1.002 \| good	5.558 \| good	0.162 \| good
2026-09-12T04:00:00.000Z	60 \| moderate	13.736 \| fine	62.27 \| fine	32.972 \| good	0.989 \| good	7.055 \| good	0.166 \| good
2026-09-12T05:00:00.000Z	62 \| moderate	14.673 \| fine	65.603 \| fine	27.405 \| good	0.951 \| good	8.355 \| good	0.169 \| good
2026-09-12T06:00:00.000Z	62 \| moderate	14.545 \| fine	65.585 \| fine	23.422 \| good	0.904 \| good	9.298 \| good	0.172 \| good
2026-09-12T07:00:00.000Z	60 \| moderate	13.992 \| fine	62.444 \| fine	21.215 \| good	0.854 \| good	10.338 \| good	0.176 \| good
2026-09-12T08:00:00.000Z	58 \| moderate	13.294 \| fine	60.351 \| fine	19.312 \| good	0.805 \| good	11.128 \| good	0.18 \| good

Rancho Cucamonga

Empower business decisions with accurate air quality data

Rancho Cucamonga, California air quality map: Real-time AQI near you

0.33ppm

How accurate is California, USA air quality data?

Air quality measurements for California, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.

Source: Ambee Data Sources

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Frequently asked questions

How frequently is the air quality data for Rancho Cucamonga, California updated?

Air quality data for Rancho Cucamonga, California is updated on an hourly basis.

When did Rancho Cucamonga, California experience the worst air quality in the last 24 hours?

The worst air quality in Rancho Cucamonga, California was recorded at 12:00:00 on 2026-09-10.

When did Rancho Cucamonga, California have its best air quality in the last 24 hours?

The best air quality in Rancho Cucamonga, California was recorded at 05:00:00 on 2026-09-10.

What is the real-time air quality index for Rancho Cucamonga, California?

The real-time air quality index in Rancho Cucamonga, California is 33, currently categorized as Good.

Which pollutant is found most often in Rancho Cucamonga, California?

The most common pollutant in Rancho Cucamonga, California is PM2.5.

What can I do if the air quality in Rancho Cucamonga, California is poor?

If the air quality in Rancho Cucamonga, California is poor, limit outdoor activities and use a mask to safeguard your health.

What are the current PM_2.5 levels in Rancho Cucamonga, California?

The measured PM_2.5 levels in Rancho Cucamonga, California at present are 6.036 μg/m³.

What are the current PM₁₀ levels at Rancho Cucamonga, California?

The current PM₁₀ levels in Rancho Cucamonga, California are 21.09 μg/m³.

What are the current carbon monoxide (CO) levels at Rancho Cucamonga, California?

The current carbon monoxide (CO) level in Rancho Cucamonga, California is 0.409 ppm.

What are the current sulfur dioxide (SO₂) levels at Rancho Cucamonga, California?

The current sulfur dioxide (SO₂) levels in Rancho Cucamonga, California are 0.636 ppb.

What are the current ozone (O₃) levels at Rancho Cucamonga, California?

The current ozone (O₃) levels at Rancho Cucamonga, California is 16.521 ppm.

What are the current nitrogen dioxide (NO₂) levels at Rancho Cucamonga, California?

The current nitrogen dioxide (NO₂) levels at Rancho Cucamonga, California is 24.068 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-09-08T09:00:00.000Z	52 \| moderate	10.037 \| good	22.768 \| good	5.353 \| good	0.983 \| good	23.405 \| good	0.425 \| good
2026-09-08T10:00:00.000Z	52 \| moderate	10.239 \| good	19.442 \| good	3.392 \| good	0.89 \| good	20.502 \| good	0.52 \| good
2026-09-08T11:00:00.000Z	52 \| moderate	10.107 \| good	20.086 \| good	4.577 \| good	1.118 \| good	19.896 \| good	0.448 \| good
2026-09-08T12:00:00.000Z	58 \| moderate	12.648 \| fine	22.467 \| good	5.107 \| good	1.003 \| good	20.994 \| good	0.548 \| good
2026-09-08T13:00:00.000Z	56 \| moderate	11.523 \| good	22.668 \| good	5.201 \| good	1.005 \| good	20.994 \| good	0.548 \| good
2026-09-08T14:00:00.000Z	54 \| moderate	11.33 \| good	39.204 \| good	4.721 \| good	1.103 \| good	23.933 \| good	0.666 \| good
2026-09-08T15:00:00.000Z	60 \| moderate	13.965 \| fine	32.266 \| good	5.532 \| good	1.225 \| good	26.946 \| good	0.762 \| good
2026-09-08T16:00:00.000Z	52 \| moderate	10.016 \| good	30.852 \| good	5.249 \| good	1.224 \| good	26.946 \| good	0.761 \| good
2026-09-08T17:00:00.000Z	60 \| moderate	13.5 \| fine	35.027 \| good	10.553 \| good	0.992 \| good	34.002 \| good	0.77 \| good
2026-09-08T18:00:00.000Z	56 \| moderate	12.267 \| fine	37.328 \| good	16.914 \| good	0.985 \| good	34.397 \| good	0.663 \| good
2026-09-08T19:00:00.000Z	56 \| moderate	11.502 \| good	30.511 \| good	31.866 \| good	0.916 \| good	23.986 \| good	0.682 \| good
2026-09-08T20:00:00.000Z	56 \| moderate	12.22 \| fine	44.396 \| good	39.801 \| good	0.768 \| good	22.598 \| good	0.471 \| good
2026-09-08T21:00:00.000Z	44 \| good	8.369 \| good	25.821 \| good	45.358 \| good	0.734 \| good	15.14 \| good	0.358 \| good
2026-09-08T22:00:00.000Z	39 \| good	7.438 \| good	27.039 \| good	42.001 \| good	0.685 \| good	14.149 \| good	0.322 \| good
2026-09-08T23:00:00.000Z	38 \| good	6.713 \| good	29.082 \| good	41.425 \| good	0.742 \| good	11.688 \| good	0.275 \| good
2026-09-09T00:00:00.000Z	42 \| good	4.847 \| good	35.333 \| good	44.715 \| good	0.724 \| good	11.688 \| good	0.247 \| good
2026-09-09T01:00:00.000Z	41 \| good	4.772 \| good	19.562 \| good	43.936 \| good	0.645 \| good	13.618 \| good	0.277 \| good
2026-09-09T02:00:00.000Z	40 \| good	4.796 \| good	19.466 \| good	43.004 \| good	0.643 \| good	13.618 \| good	0.277 \| good
2026-09-09T03:00:00.000Z	66 \| moderate	17.033 \| fine	74.996 \| fine	49.448 \| good	1.126 \| good	14.187 \| good	0.167 \| good
2026-09-09T04:00:00.000Z	33 \| good	6.313 \| good	22.745 \| good	26.317 \| good	0.677 \| good	25.154 \| good	0.35 \| good
2026-09-09T05:00:00.000Z	38 \| good	7.399 \| good	30.828 \| good	15.025 \| good	1.058 \| good	32.579 \| good	0.665 \| good
2026-09-09T06:00:00.000Z	44 \| good	7.88 \| good	26.935 \| good	14.604 \| good	1.064 \| good	32.579 \| good	0.661 \| good
2026-09-09T07:00:00.000Z	38 \| good	7.146 \| good	27.733 \| good	13.858 \| good	1.07 \| good	32.579 \| good	0.661 \| good
2026-09-09T08:00:00.000Z	52 \| moderate	9.927 \| good	35.899 \| good	5.234 \| good	1.324 \| good	30.359 \| good	0.578 \| good
2026-09-09T09:00:00.000Z	54 \| moderate	11.299 \| good	27.712 \| good	11.087 \| good	1.047 \| good	27.494 \| good	0.498 \| good
2026-09-09T10:00:00.000Z	52 \| moderate	9.531 \| good	19.276 \| good	4.838 \| good	0.996 \| good	28.676 \| good	0.512 \| good
2026-09-09T11:00:00.000Z	38 \| good	6.936 \| good	23.307 \| good	4.829 \| good	1.239 \| good	27.773 \| good	0.512 \| good
2026-09-09T12:00:00.000Z	44 \| good	8.291 \| good	17.973 \| good	7.675 \| good	1.197 \| good	25.435 \| good	0.74 \| good
2026-09-09T13:00:00.000Z	54 \| moderate	11.201 \| good	28.117 \| good	8.654 \| good	1.19 \| good	25.435 \| good	0.741 \| good
2026-09-09T14:00:00.000Z	44 \| good	7.936 \| good	27.97 \| good	5.473 \| good	1.495 \| good	23.681 \| good	0.942 \| good
2026-09-09T15:00:00.000Z	66 \| moderate	17.097 \| fine	60.164 \| fine	6.401 \| good	1.499 \| good	33.409 \| good	0.927 \| good
2026-09-09T16:00:00.000Z	58 \| moderate	13.354 \| fine	53.869 \| good	5.386 \| good	1.493 \| good	33.409 \| good	0.917 \| good
2026-09-09T17:00:00.000Z	60 \| moderate	14.305 \| fine	42.261 \| good	16.023 \| good	1.255 \| good	37.841 \| good	0.525 \| good
2026-09-09T18:00:00.000Z	56 \| moderate	11.595 \| good	38.571 \| good	15.889 \| good	1.297 \| good	38.504 \| good	0.53 \| good
2026-09-09T19:00:00.000Z	54 \| moderate	11.387 \| good	53.604 \| good	40.361 \| good	0.997 \| good	24.365 \| good	0.418 \| good
2026-09-09T20:00:00.000Z	54 \| moderate	11.407 \| good	53.865 \| good	41.89 \| good	1.123 \| good	24.34 \| good	0.414 \| good
2026-09-09T21:00:00.000Z	54 \| moderate	8.637 \| good	48.445 \| good	55.879 \| fine	0.916 \| good	13.778 \| good	0.481 \| good
2026-09-09T22:00:00.000Z	54 \| moderate	9.265 \| good	27.006 \| good	56.324 \| fine	0.926 \| good	13.778 \| good	0.481 \| good
2026-09-09T23:00:00.000Z	80 \| moderate	5.475 \| good	17.399 \| good	64.266 \| fine	1.083 \| good	12.383 \| good	0.395 \| good
2026-09-10T00:00:00.000Z	84 \| moderate	5.84 \| good	29.58 \| good	64.88 \| fine	1.031 \| good	18.432 \| good	0.39 \| good
2026-09-10T01:00:00.000Z	77 \| moderate	6.719 \| good	26.506 \| good	62.619 \| fine	1.102 \| good	17.547 \| good	0.328 \| good
2026-09-10T02:00:00.000Z	42 \| good	7.1 \| good	26.831 \| good	44.676 \| good	1.014 \| good	15.743 \| good	0.381 \| good
2026-09-10T03:00:00.000Z	36 \| good	5.282 \| good	20.588 \| good	38.567 \| good	1.021 \| good	14.49 \| good	0.396 \| good
2026-09-10T04:00:00.000Z	29 \| good	5.426 \| good	19.121 \| good	30.627 \| good	0.899 \| good	19.948 \| good	0.528 \| good
2026-09-10T05:00:00.000Z	27 \| good	5.182 \| good	18.169 \| good	22.929 \| good	0.904 \| good	20.569 \| good	0.42 \| good
2026-09-10T06:00:00.000Z	33 \| good	6.191 \| good	23.852 \| good	16.839 \| good	0.61 \| good	24.068 \| good	0.413 \| good
2026-09-10T07:00:00.000Z	33 \| good	6.036 \| good	21.09 \| good	16.521 \| good	0.636 \| good	24.068 \| good	0.409 \| good
2026-09-10T08:00:00.000Z	33 \| good	6.036 \| good	21.09 \| good	16.521 \| good	0.636 \| good	24.068 \| good	0.409 \| good
2026-09-10T09:00:00.000Z	49 \| good	9.357 \| good	41.59 \| good	6.54 \| good	1.393 \| good	21.756 \| good	0.227 \| good
2026-09-10T10:00:00.000Z	52 \| moderate	9.79 \| good	43.637 \| good	6.344 \| good	1.419 \| good	21.74 \| good	0.229 \| good
2026-09-10T11:00:00.000Z	49 \| good	9.1 \| good	40.269 \| good	6.058 \| good	1.445 \| good	22.368 \| good	0.234 \| good
2026-09-10T12:00:00.000Z	49 \| good	8.633 \| good	37.659 \| good	5.664 \| good	1.444 \| good	23.336 \| good	0.241 \| good
2026-09-10T13:00:00.000Z	44 \| good	8.153 \| good	35.629 \| good	6.497 \| good	1.431 \| good	24.135 \| good	0.248 \| good
2026-09-10T14:00:00.000Z	49 \| good	8.511 \| good	37.072 \| good	10.364 \| good	1.428 \| good	23.998 \| good	0.259 \| good
2026-09-10T15:00:00.000Z	49 \| good	8.928 \| good	39.278 \| good	15.847 \| good	1.438 \| good	20.598 \| good	0.268 \| good
2026-09-10T16:00:00.000Z	52 \| moderate	10.372 \| good	45.997 \| good	23.046 \| good	1.438 \| good	10.097 \| good	0.199 \| good
2026-09-10T17:00:00.000Z	54 \| moderate	11.157 \| good	49.299 \| good	36.862 \| good	1.244 \| good	5.817 \| good	0.169 \| good
2026-09-10T18:00:00.000Z	58 \| moderate	12.612 \| fine	57.255 \| fine	52.485 \| good	1.131 \| good	3.393 \| good	0.154 \| good
2026-09-10T19:00:00.000Z	97 \| moderate	12.789 \| fine	57.632 \| fine	68.652 \| fine	1.059 \| good	2.19 \| good	0.148 \| good
2026-09-10T20:00:00.000Z	143 \| sensitive	13.331 \| fine	59.479 \| fine	82.619 \| moderate	1.003 \| good	1.669 \| good	0.144 \| good
2026-09-10T21:00:00.000Z	140 \| sensitive	11.963 \| good	52.984 \| good	82.179 \| moderate	0.957 \| good	1.466 \| good	0.141 \| good
2026-09-10T22:00:00.000Z	126 \| sensitive	10.389 \| good	46.033 \| good	78.024 \| moderate	0.927 \| good	1.436 \| good	0.14 \| good
2026-09-10T23:00:00.000Z	119 \| sensitive	8.749 \| good	38.566 \| good	75.824 \| moderate	0.91 \| good	1.559 \| good	0.139 \| good
2026-09-11T00:00:00.000Z	150 \| sensitive	14.764 \| fine	65.929 \| fine	85.164 \| moderate	0.946 \| good	2.02 \| good	0.141 \| good
2026-09-11T01:00:00.000Z	119 \| sensitive	15.71 \| fine	69.772 \| fine	75.836 \| moderate	1.018 \| good	3.067 \| good	0.145 \| good
2026-09-11T02:00:00.000Z	67 \| moderate	18.147 \| fine	79.775 \| fine	53.18 \| good	1.081 \| good	5.543 \| good	0.155 \| good
2026-09-11T03:00:00.000Z	60 \| moderate	14.425 \| fine	64.415 \| fine	48.457 \| good	1.1 \| good	8.043 \| good	0.166 \| good
2026-09-11T04:00:00.000Z	62 \| moderate	14.776 \| fine	65.93 \| fine	37.768 \| good	1.079 \| good	10.118 \| good	0.173 \| good
2026-09-11T05:00:00.000Z	58 \| moderate	13.24 \| fine	59.816 \| fine	31.62 \| good	1.027 \| good	12.139 \| good	0.181 \| good
2026-09-11T06:00:00.000Z	60 \| moderate	14.329 \| fine	63.93 \| fine	27.346 \| good	0.977 \| good	14.302 \| good	0.189 \| good
2026-09-11T07:00:00.000Z	58 \| moderate	13.129 \| fine	59.544 \| fine	23.255 \| good	0.936 \| good	15.915 \| good	0.198 \| good
2026-09-11T08:00:00.000Z	60 \| moderate	13.729 \| fine	61.788 \| fine	19.102 \| good	0.913 \| good	17.704 \| good	0.206 \| good
2026-09-11T09:00:00.000Z	58 \| moderate	13.282 \| fine	59.692 \| fine	16.845 \| good	0.907 \| good	19.069 \| good	0.213 \| good
2026-09-11T10:00:00.000Z	60 \| moderate	14.356 \| fine	63.943 \| fine	13.917 \| good	0.911 \| good	19.28 \| good	0.215 \| good
2026-09-11T11:00:00.000Z	62 \| moderate	14.519 \| fine	65.013 \| fine	11.723 \| good	0.897 \| good	18.477 \| good	0.214 \| good
2026-09-11T12:00:00.000Z	66 \| moderate	16.57 \| fine	73.165 \| fine	9.469 \| good	0.888 \| good	18.464 \| good	0.214 \| good
2026-09-11T13:00:00.000Z	64 \| moderate	16.067 \| fine	71.533 \| fine	7.09 \| good	0.891 \| good	18.97 \| good	0.216 \| good
2026-09-11T14:00:00.000Z	66 \| moderate	17.061 \| fine	75.457 \| fine	11.769 \| good	0.905 \| good	19.248 \| good	0.223 \| good
2026-09-11T15:00:00.000Z	69 \| moderate	18.691 \| fine	83.051 \| fine	22.657 \| good	0.89 \| good	14.641 \| good	0.218 \| good
2026-09-11T16:00:00.000Z	67 \| moderate	18.301 \| fine	80.534 \| fine	30.31 \| good	0.831 \| good	6.377 \| good	0.164 \| good
2026-09-11T17:00:00.000Z	69 \| moderate	18.905 \| fine	84.018 \| fine	42.009 \| good	0.745 \| good	3.887 \| good	0.152 \| good
2026-09-11T18:00:00.000Z	67 \| moderate	18.445 \| fine	81.29 \| fine	56.011 \| fine	0.659 \| good	2.426 \| good	0.146 \| good
2026-09-11T19:00:00.000Z	87 \| moderate	16.867 \| fine	75.031 \| fine	66.38 \| fine	0.615 \| good	1.706 \| good	0.145 \| good
2026-09-11T20:00:00.000Z	126 \| sensitive	19.8 \| fine	87.582 \| fine	77.537 \| moderate	0.594 \| good	1.383 \| good	0.145 \| good
2026-09-11T21:00:00.000Z	136 \| sensitive	20.476 \| fine	89.476 \| fine	81.273 \| moderate	0.602 \| good	1.261 \| good	0.146 \| good
2026-09-11T22:00:00.000Z	143 \| sensitive	18.645 \| fine	82.485 \| fine	83.208 \| moderate	0.648 \| good	1.282 \| good	0.148 \| good
2026-09-11T23:00:00.000Z	119 \| sensitive	15.624 \| fine	69.91 \| fine	76.356 \| moderate	0.725 \| good	1.44 \| good	0.15 \| good
2026-09-12T00:00:00.000Z	133 \| sensitive	17.155 \| fine	76.006 \| fine	79.733 \| moderate	0.811 \| good	1.808 \| good	0.152 \| good
2026-09-12T01:00:00.000Z	101 \| sensitive	18.36 \| fine	81.352 \| fine	71.001 \| moderate	0.895 \| good	2.411 \| good	0.153 \| good
2026-09-12T02:00:00.000Z	73 \| moderate	20.694 \| fine	91.259 \| fine	47.738 \| good	0.968 \| good	3.769 \| good	0.157 \| good
2026-09-12T03:00:00.000Z	62 \| moderate	14.614 \| fine	65.685 \| fine	43.272 \| good	1.002 \| good	5.558 \| good	0.162 \| good
2026-09-12T04:00:00.000Z	60 \| moderate	13.736 \| fine	62.27 \| fine	32.972 \| good	0.989 \| good	7.055 \| good	0.166 \| good
2026-09-12T05:00:00.000Z	62 \| moderate	14.673 \| fine	65.603 \| fine	27.405 \| good	0.951 \| good	8.355 \| good	0.169 \| good
2026-09-12T06:00:00.000Z	62 \| moderate	14.545 \| fine	65.585 \| fine	23.422 \| good	0.904 \| good	9.298 \| good	0.172 \| good
2026-09-12T07:00:00.000Z	60 \| moderate	13.992 \| fine	62.444 \| fine	21.215 \| good	0.854 \| good	10.338 \| good	0.176 \| good
2026-09-12T08:00:00.000Z	58 \| moderate	13.294 \| fine	60.351 \| fine	19.312 \| good	0.805 \| good	11.128 \| good	0.18 \| good

Real-time air quality index in Rancho Cucamonga, California today

Common air pollutants in Rancho Cucamonga, California

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Rancho Cucamonga, California air quality forecast and history

Empower business decisions with accurate air quality data

Rancho Cucamonga, California air quality map: Real-time AQI near you

Air quality in nearby cities

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Montclair, California

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Fontana, California

How accurate is California, USA air quality data?

Air quality levels in US

Frequently asked questions

How frequently is the air quality data for Rancho Cucamonga, California updated?

When did Rancho Cucamonga, California experience the worst air quality in the last 24 hours?

When did Rancho Cucamonga, California have its best air quality in the last 24 hours?

What is the real-time air quality index for Rancho Cucamonga, California?

Which pollutant is found most often in Rancho Cucamonga, California?

What can I do if the air quality in Rancho Cucamonga, California is poor?

What are the current PM2.5 levels in Rancho Cucamonga, California?

What are the current PM10 levels at Rancho Cucamonga, California?

What are the current carbon monoxide (CO) levels at Rancho Cucamonga, California?

What are the current sulfur dioxide (SO2) levels at Rancho Cucamonga, California?

What are the current ozone (O3) levels at Rancho Cucamonga, California?

What are the current nitrogen dioxide (NO2) levels at Rancho Cucamonga, California?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What are the current PM_2.5 levels in Rancho Cucamonga, California?

What are the current PM₁₀ levels at Rancho Cucamonga, California?

What are the current sulfur dioxide (SO₂) levels at Rancho Cucamonga, California?

What are the current ozone (O₃) levels at Rancho Cucamonga, California?

What are the current nitrogen dioxide (NO₂) levels at Rancho Cucamonga, California?