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

The current PM10 levels in Rancho Cucamonga, California are 47.974 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 0.558 ppb.

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

The current ozone (O3) levels at Rancho Cucamonga, California is 10.949 ppm.

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

The current nitrogen dioxide (NO2) levels at Rancho Cucamonga, California is 21.223 ppb.

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

Name: Live air pollution levels in Rancho Cucamonga, California today
Creator: Ambee

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)

7.90 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

47.97 μg/m³

155

255

425

605+

Ozone (O₃)

10.95 ppb

201

201+

Sulfur Dioxide (SO₂)

0.56 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

21.22 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.49 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
2025-09-07T16:00:00.000Z	54 \| moderate	10.87 \| good	33.229 \| good	22.341 \| good	0.312 \| good	23.963 \| good	0.411 \| good
2025-09-07T17:00:00.000Z	73 \| moderate	21.476 \| fine	77.992 \| fine	33.402 \| good	0.304 \| good	24.23 \| good	0.4 \| good
2025-09-07T18:00:00.000Z	58 \| moderate	12.662 \| fine	34.184 \| good	42.102 \| good	0.33 \| good	18.733 \| good	0.345 \| good
2025-09-07T19:00:00.000Z	52 \| moderate	10.089 \| good	32.05 \| good	51.884 \| good	0.337 \| good	12.198 \| good	0.245 \| good
2025-09-07T20:00:00.000Z	58 \| moderate	8.627 \| good	26.63 \| good	57.37 \| fine	0.19 \| good	9.832 \| good	0.2 \| good
2025-09-07T21:00:00.000Z	71 \| moderate	7.32 \| good	23.968 \| good	60.933 \| fine	0.161 \| good	9.069 \| good	0.2 \| good
2025-09-07T22:00:00.000Z	71 \| moderate	6.249 \| good	23.26 \| good	61.489 \| fine	0.647 \| good	6.63 \| good	0.159 \| good
2025-09-07T23:00:00.000Z	77 \| moderate	6.329 \| good	24.324 \| good	62.856 \| fine	0.438 \| good	6.99 \| good	0.2 \| good
2025-09-08T00:00:00.000Z	84 \| moderate	6.94 \| good	28.636 \| good	65.437 \| fine	0.56 \| good	9.902 \| good	0.2 \| good
2025-09-08T01:00:00.000Z	61 \| moderate	7.14 \| good	34.135 \| good	58.34 \| fine	0.714 \| good	11.589 \| good	0.196 \| good
2025-09-08T02:00:00.000Z	61 \| moderate	8.672 \| good	32.207 \| good	58.141 \| fine	0.646 \| good	12.932 \| good	0.257 \| good
2025-09-08T03:00:00.000Z	45 \| good	7.936 \| good	29.042 \| good	49.326 \| good	1.066 \| good	14.537 \| good	0.231 \| good
2025-09-08T04:00:00.000Z	44 \| good	8.222 \| good	28.552 \| good	44.018 \| good	0.633 \| good	16.127 \| good	0.255 \| good
2025-09-08T05:00:00.000Z	36 \| good	6.304 \| good	21.909 \| good	39.218 \| good	0.754 \| good	19.614 \| good	0.311 \| good
2025-09-08T06:00:00.000Z	34 \| good	6.171 \| good	24.277 \| good	37.007 \| good	0.431 \| good	19.641 \| good	0.296 \| good
2025-09-08T07:00:00.000Z	38 \| good	6.507 \| good	27.915 \| good	25.068 \| good	0.343 \| good	19.197 \| good	0.255 \| good
2025-09-08T08:00:00.000Z	42 \| good	5.941 \| good	44.582 \| good	21.183 \| good	0.201 \| good	23.121 \| good	0.27 \| good
2025-09-08T09:00:00.000Z	38 \| good	7.173 \| good	29.297 \| good	16.924 \| good	0.154 \| good	31.56 \| good	0.351 \| good
2025-09-08T10:00:00.000Z	38 \| good	7.442 \| good	27.194 \| good	14.417 \| good	0.181 \| good	28.927 \| good	0.351 \| good
2025-09-08T11:00:00.000Z	38 \| good	7.387 \| good	24.173 \| good	8.951 \| good	0.218 \| good	29.753 \| good	0.335 \| good
2025-09-08T12:00:00.000Z	49 \| good	9.355 \| good	33.406 \| good	8.387 \| good	0.386 \| good	32.121 \| good	0.351 \| good
2025-09-08T13:00:00.000Z	44 \| good	8.4 \| good	38.452 \| good	8.576 \| good	0.245 \| good	31.558 \| good	0.352 \| good
2025-09-08T14:00:00.000Z	62 \| moderate	10.124 \| good	76.691 \| fine	8.327 \| good	0.277 \| good	31.509 \| good	0.49 \| good
2025-09-08T15:00:00.000Z	79 \| moderate	10.727 \| good	110.943 \| fine	13.445 \| good	0.587 \| good	34.909 \| good	0.608 \| good
2025-09-08T16:00:00.000Z	60 \| moderate	12.657 \| fine	73.123 \| fine	20.889 \| good	0.738 \| good	37.472 \| good	0.502 \| good
2025-09-08T17:00:00.000Z	52 \| moderate	10.49 \| good	52.431 \| good	29.393 \| good	0.658 \| good	31.791 \| good	0.359 \| good
2025-09-08T18:00:00.000Z	44 \| good	7.523 \| good	43.678 \| good	31.674 \| good	0.628 \| good	24.13 \| good	0.259 \| good
2025-09-08T19:00:00.000Z	38 \| good	7.098 \| good	36.921 \| good	39.509 \| good	0.497 \| good	20.489 \| good	0.224 \| good
2025-09-08T20:00:00.000Z	45 \| good	5.707 \| good	28.826 \| good	48.66 \| good	0.412 \| good	19.062 \| good	0.2 \| good
2025-09-08T21:00:00.000Z	47 \| good	4.122 \| good	25.243 \| good	50.759 \| good	0.248 \| good	17.744 \| good	0.2 \| good
2025-09-08T22:00:00.000Z	51 \| moderate	4.228 \| good	35.143 \| good	55.267 \| fine	0.223 \| good	17.108 \| good	0.196 \| good
2025-09-08T23:00:00.000Z	58 \| moderate	4.892 \| good	32.309 \| good	57.118 \| fine	0.449 \| good	15.609 \| good	0.2 \| good
2025-09-09T00:00:00.000Z	74 \| moderate	4.857 \| good	20.962 \| good	62.115 \| fine	3.791 \| good	5.838 \| good	0.146 \| good
2025-09-09T01:00:00.000Z	45 \| good	5.993 \| good	26.397 \| good	48.618 \| good	4.102 \| good	8.816 \| good	0.156 \| good
2025-09-09T02:00:00.000Z	36 \| good	2.347 \| good	9.437 \| good	38.889 \| good	4.006 \| good	10.333 \| good	0.159 \| good
2025-09-09T03:00:00.000Z	31 \| good	2.684 \| good	10.735 \| good	32.933 \| good	4.238 \| good	12.954 \| good	0.166 \| good
2025-09-09T04:00:00.000Z	27 \| good	4.636 \| good	19.939 \| good	25.663 \| good	4.707 \| good	17.039 \| good	0.183 \| good
2025-09-09T05:00:00.000Z	27 \| good	4.541 \| good	19.462 \| good	21.403 \| good	4.691 \| good	19.303 \| good	0.192 \| good
2025-09-09T06:00:00.000Z	27 \| good	4.608 \| good	19.732 \| good	18.646 \| good	4.675 \| good	21.568 \| good	0.201 \| good
2025-09-09T07:00:00.000Z	22 \| good	4.35 \| good	18.778 \| good	17.493 \| good	4.168 \| good	19.528 \| good	0.193 \| good
2025-09-09T08:00:00.000Z	33 \| good	6.27 \| good	22.222 \| good	9.065 \| good	0.166 \| good	20.154 \| good	0.255 \| good
2025-09-09T09:00:00.000Z	27 \| good	5.103 \| good	19.979 \| good	6 \| good	0.164 \| good	19.39 \| good	0.28 \| good
2025-09-09T10:00:00.000Z	27 \| good	4.54 \| good	21.106 \| good	5.98 \| good	0.152 \| good	19.39 \| good	0.28 \| good
2025-09-09T11:00:00.000Z	55 \| moderate	10.666 \| good	64.48 \| fine	3.641 \| good	0.231 \| good	22.283 \| good	0.276 \| good
2025-09-09T12:00:00.000Z	39 \| good	5.232 \| good	41.571 \| good	5.627 \| good	0.244 \| good	23.277 \| good	0.316 \| good
2025-09-09T13:00:00.000Z	33 \| good	5.634 \| good	30.768 \| good	5.329 \| good	0.221 \| good	25.641 \| good	0.388 \| good
2025-09-09T14:00:00.000Z	37 \| good	4.275 \| good	40.026 \| good	7.075 \| good	0.308 \| good	24.132 \| good	0.483 \| good
2025-09-09T15:00:00.000Z	44 \| good	7.899 \| good	47.974 \| good	10.949 \| good	0.558 \| good	21.223 \| good	0.491 \| good
2025-09-09T15:00:00.000Z	44 \| good	7.899 \| good	47.974 \| good	10.949 \| good	0.558 \| good	21.223 \| good	0.491 \| good
2025-09-08T22:00:00.000Z	71 \| moderate	5.042 \| good	21.938 \| good	60.782 \| fine	3.427 \| good	5.025 \| good	0.154 \| good
2025-09-08T23:00:00.000Z	87 \| moderate	5.58 \| good	23.83 \| good	65.835 \| fine	3.484 \| good	5.058 \| good	0.149 \| good
2025-09-09T00:00:00.000Z	74 \| moderate	4.936 \| good	21.522 \| good	61.516 \| fine	3.541 \| good	5.091 \| good	0.143 \| good
2025-09-09T01:00:00.000Z	44 \| good	4.949 \| good	21.631 \| good	47.985 \| good	3.774 \| good	7.712 \| good	0.151 \| good
2025-09-09T02:00:00.000Z	36 \| good	2.347 \| good	9.437 \| good	38.889 \| good	4.006 \| good	10.333 \| good	0.159 \| good
2025-09-09T03:00:00.000Z	31 \| good	2.684 \| good	10.735 \| good	32.933 \| good	4.238 \| good	12.954 \| good	0.166 \| good
2025-09-09T04:00:00.000Z	27 \| good	4.941 \| good	21.045 \| good	27.785 \| good	4.242 \| good	14.876 \| good	0.174 \| good
2025-09-09T05:00:00.000Z	27 \| good	5.188 \| good	22.274 \| good	24.441 \| good	4.245 \| good	16.799 \| good	0.182 \| good
2025-09-09T06:00:00.000Z	27 \| good	5.093 \| good	21.772 \| good	21.436 \| good	4.248 \| good	18.721 \| good	0.189 \| good
2025-09-09T07:00:00.000Z	22 \| good	4.35 \| good	18.778 \| good	17.493 \| good	4.168 \| good	19.528 \| good	0.193 \| good
2025-09-09T08:00:00.000Z	22 \| good	3.51 \| good	15.26 \| good	12.38 \| good	4.087 \| good	20.336 \| good	0.197 \| good
2025-09-09T09:00:00.000Z	20 \| good	2.86 \| good	11.754 \| good	9.623 \| good	4.007 \| good	21.143 \| good	0.201 \| good
2025-09-09T10:00:00.000Z	22 \| good	3.755 \| good	16.728 \| good	8.852 \| good	4.054 \| good	21.605 \| good	0.2 \| good
2025-09-09T11:00:00.000Z	33 \| good	5.745 \| good	25.023 \| good	8.015 \| good	4.101 \| good	22.067 \| good	0.2 \| good
2025-09-09T12:00:00.000Z	38 \| good	6.626 \| good	29.391 \| good	6.229 \| good	4.149 \| good	22.53 \| good	0.199 \| good
2025-09-09T13:00:00.000Z	44 \| good	8.357 \| good	36.613 \| good	5.798 \| good	4.285 \| good	20.023 \| good	0.202 \| good
2025-09-09T14:00:00.000Z	56 \| moderate	11.659 \| good	51.835 \| good	8.54 \| good	4.421 \| good	17.516 \| good	0.205 \| good
2025-09-09T15:00:00.000Z	49 \| good	9.28 \| good	40.933 \| good	15.258 \| good	4.557 \| good	15.008 \| good	0.209 \| good
2025-09-09T16:00:00.000Z	52 \| moderate	10.011 \| good	44.775 \| good	22.628 \| good	3.995 \| good	12.008 \| good	0.187 \| good
2025-09-09T17:00:00.000Z	58 \| moderate	13.076 \| fine	58.62 \| fine	30.81 \| good	3.434 \| good	9.008 \| good	0.165 \| good
2025-09-09T18:00:00.000Z	52 \| moderate	9.741 \| good	43.136 \| good	36.234 \| good	2.872 \| good	6.008 \| good	0.144 \| good
2025-09-09T19:00:00.000Z	49 \| good	8.606 \| good	37.749 \| good	42.257 \| good	2.679 \| good	4.891 \| good	0.14 \| good
2025-09-09T20:00:00.000Z	49 \| good	8.561 \| good	37.685 \| good	49.859 \| good	2.486 \| good	3.773 \| good	0.137 \| good
2025-09-09T21:00:00.000Z	54 \| moderate	5.18 \| good	22.754 \| good	55.688 \| fine	2.293 \| good	2.656 \| good	0.134 \| good
2025-09-09T22:00:00.000Z	61 \| moderate	5.519 \| good	23.879 \| good	58.175 \| fine	2.489 \| good	3.033 \| good	0.135 \| good
2025-09-09T23:00:00.000Z	67 \| moderate	7.586 \| good	33.743 \| good	59.621 \| fine	2.685 \| good	3.41 \| good	0.136 \| good
2025-09-10T00:00:00.000Z	54 \| moderate	8.566 \| good	37.75 \| good	55.858 \| fine	2.882 \| good	3.787 \| good	0.137 \| good
2025-09-10T01:00:00.000Z	49 \| good	9.006 \| good	40.036 \| good	43.631 \| good	3.142 \| good	5.817 \| good	0.141 \| good
2025-09-10T02:00:00.000Z	31 \| good	4.408 \| good	19.097 \| good	34.342 \| good	3.402 \| good	7.847 \| good	0.146 \| good
2025-09-10T03:00:00.000Z	26 \| good	3.406 \| good	14.834 \| good	28.173 \| good	3.662 \| good	9.877 \| good	0.15 \| good
2025-09-10T04:00:00.000Z	22 \| good	3.527 \| good	15.115 \| good	23.114 \| good	3.708 \| good	10.811 \| good	0.151 \| good
2025-09-10T05:00:00.000Z	19 \| good	2.242 \| good	9 \| good	19.972 \| good	3.753 \| good	11.746 \| good	0.153 \| good
2025-09-10T06:00:00.000Z	19 \| good	3.045 \| good	12.414 \| good	19.938 \| good	3.798 \| good	12.681 \| good	0.154 \| good
2025-09-10T07:00:00.000Z	18 \| good	3.079 \| good	12.623 \| good	19.185 \| good	3.676 \| good	11.991 \| good	0.151 \| good
2025-09-10T08:00:00.000Z	22 \| good	4.066 \| good	18.12 \| good	16.158 \| good	3.553 \| good	11.301 \| good	0.148 \| good
2025-09-10T09:00:00.000Z	16 \| good	1.459 \| good	5.795 \| good	17.095 \| good	3.43 \| good	10.61 \| good	0.144 \| good
2025-09-10T10:00:00.000Z	17 \| good	0.945 \| good	3.799 \| good	18.062 \| good	3.152 \| good	9.486 \| good	0.14 \| good
2025-09-10T11:00:00.000Z	14 \| good	1.49 \| good	6.25 \| good	14.865 \| good	2.874 \| good	8.362 \| good	0.135 \| good
2025-09-10T12:00:00.000Z	27 \| good	5.401 \| good	23.131 \| good	9.929 \| good	2.595 \| good	7.237 \| good	0.13 \| good
2025-09-10T13:00:00.000Z	22 \| good	4.422 \| good	18.988 \| good	11.757 \| good	2.454 \| good	6.922 \| good	0.131 \| good
2025-09-10T14:00:00.000Z	27 \| good	4.75 \| good	20.622 \| good	16.593 \| good	2.312 \| good	6.607 \| good	0.132 \| good
2025-09-10T15:00:00.000Z	33 \| good	6.465 \| good	28.977 \| good	21.707 \| good	2.171 \| good	6.292 \| good	0.132 \| good
2025-09-10T16:00:00.000Z	27 \| good	5.316 \| good	23.1 \| good	26.369 \| good	1.887 \| good	5.118 \| good	0.128 \| good
2025-09-10T17:00:00.000Z	33 \| good	6.302 \| good	27.976 \| good	31.27 \| good	1.602 \| good	3.944 \| good	0.123 \| good
2025-09-10T18:00:00.000Z	32 \| good	3.478 \| good	15.341 \| good	34.638 \| good	1.318 \| good	2.769 \| good	0.119 \| good
2025-09-10T19:00:00.000Z	35 \| good	3.43 \| good	15.128 \| good	38.305 \| good	1.259 \| good	2.376 \| good	0.118 \| good
2025-09-10T20:00:00.000Z	42 \| good	3.982 \| good	17.347 \| good	44.968 \| good	1.2 \| good	1.982 \| good	0.117 \| good
2025-09-10T21:00:00.000Z	45 \| good	2.469 \| good	10.244 \| good	49.379 \| good	1.141 \| good	1.588 \| good	0.117 \| good

Rancho Cucamonga

Empower business decisions with accurate air quality data

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

0.14ppm

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 03:00:00 on 2025-09-08.

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 07:00:00 on 2025-09-09.

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

The real-time air quality index in Rancho Cucamonga, California is 44, currently categorized as Good.

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

The most common pollutant in Rancho Cucamonga, California is PM10.

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 7.899 μg/m³.

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

The current PM₁₀ levels in Rancho Cucamonga, California are 47.974 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 0.491 ppm.

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

The current sulfur dioxide (SO₂) levels in Rancho Cucamonga, California are 0.558 ppb.

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

The current ozone (O₃) levels at Rancho Cucamonga, California is 10.949 ppm.

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

The current nitrogen dioxide (NO₂) levels at Rancho Cucamonga, California is 21.223 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-09-07T16:00:00.000Z	54 \| moderate	10.87 \| good	33.229 \| good	22.341 \| good	0.312 \| good	23.963 \| good	0.411 \| good
2025-09-07T17:00:00.000Z	73 \| moderate	21.476 \| fine	77.992 \| fine	33.402 \| good	0.304 \| good	24.23 \| good	0.4 \| good
2025-09-07T18:00:00.000Z	58 \| moderate	12.662 \| fine	34.184 \| good	42.102 \| good	0.33 \| good	18.733 \| good	0.345 \| good
2025-09-07T19:00:00.000Z	52 \| moderate	10.089 \| good	32.05 \| good	51.884 \| good	0.337 \| good	12.198 \| good	0.245 \| good
2025-09-07T20:00:00.000Z	58 \| moderate	8.627 \| good	26.63 \| good	57.37 \| fine	0.19 \| good	9.832 \| good	0.2 \| good
2025-09-07T21:00:00.000Z	71 \| moderate	7.32 \| good	23.968 \| good	60.933 \| fine	0.161 \| good	9.069 \| good	0.2 \| good
2025-09-07T22:00:00.000Z	71 \| moderate	6.249 \| good	23.26 \| good	61.489 \| fine	0.647 \| good	6.63 \| good	0.159 \| good
2025-09-07T23:00:00.000Z	77 \| moderate	6.329 \| good	24.324 \| good	62.856 \| fine	0.438 \| good	6.99 \| good	0.2 \| good
2025-09-08T00:00:00.000Z	84 \| moderate	6.94 \| good	28.636 \| good	65.437 \| fine	0.56 \| good	9.902 \| good	0.2 \| good
2025-09-08T01:00:00.000Z	61 \| moderate	7.14 \| good	34.135 \| good	58.34 \| fine	0.714 \| good	11.589 \| good	0.196 \| good
2025-09-08T02:00:00.000Z	61 \| moderate	8.672 \| good	32.207 \| good	58.141 \| fine	0.646 \| good	12.932 \| good	0.257 \| good
2025-09-08T03:00:00.000Z	45 \| good	7.936 \| good	29.042 \| good	49.326 \| good	1.066 \| good	14.537 \| good	0.231 \| good
2025-09-08T04:00:00.000Z	44 \| good	8.222 \| good	28.552 \| good	44.018 \| good	0.633 \| good	16.127 \| good	0.255 \| good
2025-09-08T05:00:00.000Z	36 \| good	6.304 \| good	21.909 \| good	39.218 \| good	0.754 \| good	19.614 \| good	0.311 \| good
2025-09-08T06:00:00.000Z	34 \| good	6.171 \| good	24.277 \| good	37.007 \| good	0.431 \| good	19.641 \| good	0.296 \| good
2025-09-08T07:00:00.000Z	38 \| good	6.507 \| good	27.915 \| good	25.068 \| good	0.343 \| good	19.197 \| good	0.255 \| good
2025-09-08T08:00:00.000Z	42 \| good	5.941 \| good	44.582 \| good	21.183 \| good	0.201 \| good	23.121 \| good	0.27 \| good
2025-09-08T09:00:00.000Z	38 \| good	7.173 \| good	29.297 \| good	16.924 \| good	0.154 \| good	31.56 \| good	0.351 \| good
2025-09-08T10:00:00.000Z	38 \| good	7.442 \| good	27.194 \| good	14.417 \| good	0.181 \| good	28.927 \| good	0.351 \| good
2025-09-08T11:00:00.000Z	38 \| good	7.387 \| good	24.173 \| good	8.951 \| good	0.218 \| good	29.753 \| good	0.335 \| good
2025-09-08T12:00:00.000Z	49 \| good	9.355 \| good	33.406 \| good	8.387 \| good	0.386 \| good	32.121 \| good	0.351 \| good
2025-09-08T13:00:00.000Z	44 \| good	8.4 \| good	38.452 \| good	8.576 \| good	0.245 \| good	31.558 \| good	0.352 \| good
2025-09-08T14:00:00.000Z	62 \| moderate	10.124 \| good	76.691 \| fine	8.327 \| good	0.277 \| good	31.509 \| good	0.49 \| good
2025-09-08T15:00:00.000Z	79 \| moderate	10.727 \| good	110.943 \| fine	13.445 \| good	0.587 \| good	34.909 \| good	0.608 \| good
2025-09-08T16:00:00.000Z	60 \| moderate	12.657 \| fine	73.123 \| fine	20.889 \| good	0.738 \| good	37.472 \| good	0.502 \| good
2025-09-08T17:00:00.000Z	52 \| moderate	10.49 \| good	52.431 \| good	29.393 \| good	0.658 \| good	31.791 \| good	0.359 \| good
2025-09-08T18:00:00.000Z	44 \| good	7.523 \| good	43.678 \| good	31.674 \| good	0.628 \| good	24.13 \| good	0.259 \| good
2025-09-08T19:00:00.000Z	38 \| good	7.098 \| good	36.921 \| good	39.509 \| good	0.497 \| good	20.489 \| good	0.224 \| good
2025-09-08T20:00:00.000Z	45 \| good	5.707 \| good	28.826 \| good	48.66 \| good	0.412 \| good	19.062 \| good	0.2 \| good
2025-09-08T21:00:00.000Z	47 \| good	4.122 \| good	25.243 \| good	50.759 \| good	0.248 \| good	17.744 \| good	0.2 \| good
2025-09-08T22:00:00.000Z	51 \| moderate	4.228 \| good	35.143 \| good	55.267 \| fine	0.223 \| good	17.108 \| good	0.196 \| good
2025-09-08T23:00:00.000Z	58 \| moderate	4.892 \| good	32.309 \| good	57.118 \| fine	0.449 \| good	15.609 \| good	0.2 \| good
2025-09-09T00:00:00.000Z	74 \| moderate	4.857 \| good	20.962 \| good	62.115 \| fine	3.791 \| good	5.838 \| good	0.146 \| good
2025-09-09T01:00:00.000Z	45 \| good	5.993 \| good	26.397 \| good	48.618 \| good	4.102 \| good	8.816 \| good	0.156 \| good
2025-09-09T02:00:00.000Z	36 \| good	2.347 \| good	9.437 \| good	38.889 \| good	4.006 \| good	10.333 \| good	0.159 \| good
2025-09-09T03:00:00.000Z	31 \| good	2.684 \| good	10.735 \| good	32.933 \| good	4.238 \| good	12.954 \| good	0.166 \| good
2025-09-09T04:00:00.000Z	27 \| good	4.636 \| good	19.939 \| good	25.663 \| good	4.707 \| good	17.039 \| good	0.183 \| good
2025-09-09T05:00:00.000Z	27 \| good	4.541 \| good	19.462 \| good	21.403 \| good	4.691 \| good	19.303 \| good	0.192 \| good
2025-09-09T06:00:00.000Z	27 \| good	4.608 \| good	19.732 \| good	18.646 \| good	4.675 \| good	21.568 \| good	0.201 \| good
2025-09-09T07:00:00.000Z	22 \| good	4.35 \| good	18.778 \| good	17.493 \| good	4.168 \| good	19.528 \| good	0.193 \| good
2025-09-09T08:00:00.000Z	33 \| good	6.27 \| good	22.222 \| good	9.065 \| good	0.166 \| good	20.154 \| good	0.255 \| good
2025-09-09T09:00:00.000Z	27 \| good	5.103 \| good	19.979 \| good	6 \| good	0.164 \| good	19.39 \| good	0.28 \| good
2025-09-09T10:00:00.000Z	27 \| good	4.54 \| good	21.106 \| good	5.98 \| good	0.152 \| good	19.39 \| good	0.28 \| good
2025-09-09T11:00:00.000Z	55 \| moderate	10.666 \| good	64.48 \| fine	3.641 \| good	0.231 \| good	22.283 \| good	0.276 \| good
2025-09-09T12:00:00.000Z	39 \| good	5.232 \| good	41.571 \| good	5.627 \| good	0.244 \| good	23.277 \| good	0.316 \| good
2025-09-09T13:00:00.000Z	33 \| good	5.634 \| good	30.768 \| good	5.329 \| good	0.221 \| good	25.641 \| good	0.388 \| good
2025-09-09T14:00:00.000Z	37 \| good	4.275 \| good	40.026 \| good	7.075 \| good	0.308 \| good	24.132 \| good	0.483 \| good
2025-09-09T15:00:00.000Z	44 \| good	7.899 \| good	47.974 \| good	10.949 \| good	0.558 \| good	21.223 \| good	0.491 \| good
2025-09-09T15:00:00.000Z	44 \| good	7.899 \| good	47.974 \| good	10.949 \| good	0.558 \| good	21.223 \| good	0.491 \| good
2025-09-08T22:00:00.000Z	71 \| moderate	5.042 \| good	21.938 \| good	60.782 \| fine	3.427 \| good	5.025 \| good	0.154 \| good
2025-09-08T23:00:00.000Z	87 \| moderate	5.58 \| good	23.83 \| good	65.835 \| fine	3.484 \| good	5.058 \| good	0.149 \| good
2025-09-09T00:00:00.000Z	74 \| moderate	4.936 \| good	21.522 \| good	61.516 \| fine	3.541 \| good	5.091 \| good	0.143 \| good
2025-09-09T01:00:00.000Z	44 \| good	4.949 \| good	21.631 \| good	47.985 \| good	3.774 \| good	7.712 \| good	0.151 \| good
2025-09-09T02:00:00.000Z	36 \| good	2.347 \| good	9.437 \| good	38.889 \| good	4.006 \| good	10.333 \| good	0.159 \| good
2025-09-09T03:00:00.000Z	31 \| good	2.684 \| good	10.735 \| good	32.933 \| good	4.238 \| good	12.954 \| good	0.166 \| good
2025-09-09T04:00:00.000Z	27 \| good	4.941 \| good	21.045 \| good	27.785 \| good	4.242 \| good	14.876 \| good	0.174 \| good
2025-09-09T05:00:00.000Z	27 \| good	5.188 \| good	22.274 \| good	24.441 \| good	4.245 \| good	16.799 \| good	0.182 \| good
2025-09-09T06:00:00.000Z	27 \| good	5.093 \| good	21.772 \| good	21.436 \| good	4.248 \| good	18.721 \| good	0.189 \| good
2025-09-09T07:00:00.000Z	22 \| good	4.35 \| good	18.778 \| good	17.493 \| good	4.168 \| good	19.528 \| good	0.193 \| good
2025-09-09T08:00:00.000Z	22 \| good	3.51 \| good	15.26 \| good	12.38 \| good	4.087 \| good	20.336 \| good	0.197 \| good
2025-09-09T09:00:00.000Z	20 \| good	2.86 \| good	11.754 \| good	9.623 \| good	4.007 \| good	21.143 \| good	0.201 \| good
2025-09-09T10:00:00.000Z	22 \| good	3.755 \| good	16.728 \| good	8.852 \| good	4.054 \| good	21.605 \| good	0.2 \| good
2025-09-09T11:00:00.000Z	33 \| good	5.745 \| good	25.023 \| good	8.015 \| good	4.101 \| good	22.067 \| good	0.2 \| good
2025-09-09T12:00:00.000Z	38 \| good	6.626 \| good	29.391 \| good	6.229 \| good	4.149 \| good	22.53 \| good	0.199 \| good
2025-09-09T13:00:00.000Z	44 \| good	8.357 \| good	36.613 \| good	5.798 \| good	4.285 \| good	20.023 \| good	0.202 \| good
2025-09-09T14:00:00.000Z	56 \| moderate	11.659 \| good	51.835 \| good	8.54 \| good	4.421 \| good	17.516 \| good	0.205 \| good
2025-09-09T15:00:00.000Z	49 \| good	9.28 \| good	40.933 \| good	15.258 \| good	4.557 \| good	15.008 \| good	0.209 \| good
2025-09-09T16:00:00.000Z	52 \| moderate	10.011 \| good	44.775 \| good	22.628 \| good	3.995 \| good	12.008 \| good	0.187 \| good
2025-09-09T17:00:00.000Z	58 \| moderate	13.076 \| fine	58.62 \| fine	30.81 \| good	3.434 \| good	9.008 \| good	0.165 \| good
2025-09-09T18:00:00.000Z	52 \| moderate	9.741 \| good	43.136 \| good	36.234 \| good	2.872 \| good	6.008 \| good	0.144 \| good
2025-09-09T19:00:00.000Z	49 \| good	8.606 \| good	37.749 \| good	42.257 \| good	2.679 \| good	4.891 \| good	0.14 \| good
2025-09-09T20:00:00.000Z	49 \| good	8.561 \| good	37.685 \| good	49.859 \| good	2.486 \| good	3.773 \| good	0.137 \| good
2025-09-09T21:00:00.000Z	54 \| moderate	5.18 \| good	22.754 \| good	55.688 \| fine	2.293 \| good	2.656 \| good	0.134 \| good
2025-09-09T22:00:00.000Z	61 \| moderate	5.519 \| good	23.879 \| good	58.175 \| fine	2.489 \| good	3.033 \| good	0.135 \| good
2025-09-09T23:00:00.000Z	67 \| moderate	7.586 \| good	33.743 \| good	59.621 \| fine	2.685 \| good	3.41 \| good	0.136 \| good
2025-09-10T00:00:00.000Z	54 \| moderate	8.566 \| good	37.75 \| good	55.858 \| fine	2.882 \| good	3.787 \| good	0.137 \| good
2025-09-10T01:00:00.000Z	49 \| good	9.006 \| good	40.036 \| good	43.631 \| good	3.142 \| good	5.817 \| good	0.141 \| good
2025-09-10T02:00:00.000Z	31 \| good	4.408 \| good	19.097 \| good	34.342 \| good	3.402 \| good	7.847 \| good	0.146 \| good
2025-09-10T03:00:00.000Z	26 \| good	3.406 \| good	14.834 \| good	28.173 \| good	3.662 \| good	9.877 \| good	0.15 \| good
2025-09-10T04:00:00.000Z	22 \| good	3.527 \| good	15.115 \| good	23.114 \| good	3.708 \| good	10.811 \| good	0.151 \| good
2025-09-10T05:00:00.000Z	19 \| good	2.242 \| good	9 \| good	19.972 \| good	3.753 \| good	11.746 \| good	0.153 \| good
2025-09-10T06:00:00.000Z	19 \| good	3.045 \| good	12.414 \| good	19.938 \| good	3.798 \| good	12.681 \| good	0.154 \| good
2025-09-10T07:00:00.000Z	18 \| good	3.079 \| good	12.623 \| good	19.185 \| good	3.676 \| good	11.991 \| good	0.151 \| good
2025-09-10T08:00:00.000Z	22 \| good	4.066 \| good	18.12 \| good	16.158 \| good	3.553 \| good	11.301 \| good	0.148 \| good
2025-09-10T09:00:00.000Z	16 \| good	1.459 \| good	5.795 \| good	17.095 \| good	3.43 \| good	10.61 \| good	0.144 \| good
2025-09-10T10:00:00.000Z	17 \| good	0.945 \| good	3.799 \| good	18.062 \| good	3.152 \| good	9.486 \| good	0.14 \| good
2025-09-10T11:00:00.000Z	14 \| good	1.49 \| good	6.25 \| good	14.865 \| good	2.874 \| good	8.362 \| good	0.135 \| good
2025-09-10T12:00:00.000Z	27 \| good	5.401 \| good	23.131 \| good	9.929 \| good	2.595 \| good	7.237 \| good	0.13 \| good
2025-09-10T13:00:00.000Z	22 \| good	4.422 \| good	18.988 \| good	11.757 \| good	2.454 \| good	6.922 \| good	0.131 \| good
2025-09-10T14:00:00.000Z	27 \| good	4.75 \| good	20.622 \| good	16.593 \| good	2.312 \| good	6.607 \| good	0.132 \| good
2025-09-10T15:00:00.000Z	33 \| good	6.465 \| good	28.977 \| good	21.707 \| good	2.171 \| good	6.292 \| good	0.132 \| good
2025-09-10T16:00:00.000Z	27 \| good	5.316 \| good	23.1 \| good	26.369 \| good	1.887 \| good	5.118 \| good	0.128 \| good
2025-09-10T17:00:00.000Z	33 \| good	6.302 \| good	27.976 \| good	31.27 \| good	1.602 \| good	3.944 \| good	0.123 \| good
2025-09-10T18:00:00.000Z	32 \| good	3.478 \| good	15.341 \| good	34.638 \| good	1.318 \| good	2.769 \| good	0.119 \| good
2025-09-10T19:00:00.000Z	35 \| good	3.43 \| good	15.128 \| good	38.305 \| good	1.259 \| good	2.376 \| good	0.118 \| good
2025-09-10T20:00:00.000Z	42 \| good	3.982 \| good	17.347 \| good	44.968 \| good	1.2 \| good	1.982 \| good	0.117 \| good
2025-09-10T21:00:00.000Z	45 \| good	2.469 \| good	10.244 \| good	49.379 \| good	1.141 \| good	1.588 \| good	0.117 \| 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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Ontario, California

Montclair, California

Claremont, California

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Fontana, California

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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?