What are the current PM10 levels at Diamond Bar, California?

The current PM10 levels in Diamond Bar, California are 47.44 μg/m3.

What are the current sulfur dioxide (SO2) levels at Diamond Bar, California?

The current sulfur dioxide (SO2) levels in Diamond Bar, California are 0.35 ppb.

What are the current ozone (O3) levels at Diamond Bar, California?

The current ozone (O3) levels at Diamond Bar, California is 18.885 ppm.

What are the current nitrogen dioxide (NO2) levels at Diamond Bar, California?

The current nitrogen dioxide (NO2) levels at Diamond Bar, California is 12.802 ppb.

Live air quality index in Diamond Bar, California today

Name: Live air pollution levels in Diamond Bar, California today
Creator: Ambee

Stay updated with real-time air quality in Diamond Bar, 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)

Moderate

Diamond Bar, California

Last updated: ... (Local time)

Major air pollutants in Diamond Bar, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

15.66 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

56.22 μg/m³

155

255

425

605+

Ozone (O₃)

29.04 ppb

201

201+

Sulfur Dioxide (SO₂)

0.60 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

15.24 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.34 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Diamond Bar, California

Get Live Pollen Counts

Diamond Bar, California

Scroll To Air Quality Map

Track live Diamond Bar, California air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-07-09T19:00:00.000Z	60 \| moderate	13.731 \| fine	37.243 \| good	27.108 \| good	0.632 \| good	15.624 \| good	0.242 \| good
2025-07-09T20:00:00.000Z	84 \| moderate	11.524 \| good	42.426 \| good	65.067 \| fine	0.604 \| good	11.474 \| good	0.205 \| good
2025-07-09T21:00:00.000Z	80 \| moderate	11.012 \| good	21.415 \| good	64.086 \| fine	0.619 \| good	16.857 \| good	0.205 \| good
2025-07-09T22:00:00.000Z	101 \| sensitive	11.078 \| good	39.639 \| good	71.013 \| moderate	0.729 \| good	10.586 \| good	0.237 \| good
2025-07-09T23:00:00.000Z	122 \| sensitive	12.769 \| fine	39.972 \| good	77.035 \| moderate	0.625 \| good	11.056 \| good	0.229 \| good
2025-07-10T00:00:00.000Z	133 \| sensitive	13.538 \| fine	38.977 \| good	80.001 \| moderate	0.594 \| good	12.218 \| good	0.287 \| good
2025-07-10T01:00:00.000Z	105 \| sensitive	12.088 \| good	36.042 \| good	72.073 \| moderate	0.723 \| good	12.45 \| good	0.287 \| good
2025-07-10T02:00:00.000Z	100 \| moderate	10.581 \| good	30.641 \| good	69.873 \| fine	0.72 \| good	12.238 \| good	0.268 \| good
2025-07-10T03:00:00.000Z	52 \| moderate	9.959 \| good	33.295 \| good	53.541 \| good	0.7 \| good	15.026 \| good	0.268 \| good
2025-07-10T04:00:00.000Z	52 \| moderate	9.784 \| good	33.591 \| good	42.855 \| good	0.646 \| good	17.627 \| good	0.268 \| good
2025-07-10T05:00:00.000Z	49 \| good	8.735 \| good	33.477 \| good	32.408 \| good	0.533 \| good	17.503 \| good	0.273 \| good
2025-07-10T06:00:00.000Z	49 \| good	8.947 \| good	34.545 \| good	24.943 \| good	0.459 \| good	18.304 \| good	0.295 \| good
2025-07-10T07:00:00.000Z	49 \| good	9.451 \| good	28.709 \| good	19.525 \| good	0.551 \| good	19.246 \| good	0.329 \| good
2025-07-10T08:00:00.000Z	49 \| good	9.173 \| good	37.955 \| good	19.896 \| good	0.524 \| good	19.56 \| good	0.296 \| good
2025-07-10T09:00:00.000Z	52 \| moderate	10.337 \| good	34.593 \| good	14.924 \| good	0.486 \| good	20.2 \| good	0.323 \| good
2025-07-10T10:00:00.000Z	54 \| moderate	10.686 \| good	37.861 \| good	11.265 \| good	0.468 \| good	24.399 \| good	0.318 \| good
2025-07-10T11:00:00.000Z	54 \| moderate	10.629 \| good	36.702 \| good	8.64 \| good	0.471 \| good	24.399 \| good	0.285 \| good
2025-07-10T12:00:00.000Z	49 \| good	8.569 \| good	27.7 \| good	8.919 \| good	0.388 \| good	21.925 \| good	0.362 \| good
2025-07-10T13:00:00.000Z	49 \| good	8.9 \| good	25.392 \| good	7.516 \| good	0.344 \| good	24.687 \| good	0.418 \| good
2025-07-10T14:00:00.000Z	54 \| moderate	10.53 \| good	33.775 \| good	8.494 \| good	0.514 \| good	22.917 \| good	0.451 \| good
2025-07-10T15:00:00.000Z	56 \| moderate	11.637 \| good	39.365 \| good	15.701 \| good	0.797 \| good	24.587 \| good	0.494 \| good
2025-07-10T16:00:00.000Z	58 \| moderate	13.482 \| fine	37.274 \| good	23.952 \| good	0.834 \| good	26.722 \| good	0.431 \| good
2025-07-10T17:00:00.000Z	56 \| moderate	12.101 \| fine	37.1 \| good	32.15 \| good	0.878 \| good	25.223 \| good	0.442 \| good
2025-07-10T18:00:00.000Z	60 \| moderate	14.15 \| fine	44.633 \| good	42.193 \| good	0.857 \| good	22.761 \| good	0.379 \| good
2025-07-10T19:00:00.000Z	62 \| moderate	14.876 \| fine	38.264 \| good	54.708 \| good	0.985 \| good	15.645 \| good	0.317 \| good
2025-07-10T20:00:00.000Z	84 \| moderate	14.398 \| fine	48.493 \| good	65.053 \| fine	0.881 \| good	13.195 \| good	0.286 \| good
2025-07-10T21:00:00.000Z	97 \| moderate	13.796 \| fine	47.339 \| good	68.729 \| fine	0.631 \| good	11.574 \| good	0.281 \| good
2025-07-10T22:00:00.000Z	97 \| moderate	12.932 \| fine	42.91 \| good	69.37 \| fine	0.549 \| good	11.766 \| good	0.281 \| good
2025-07-10T23:00:00.000Z	100 \| moderate	11.516 \| good	36.089 \| good	69.766 \| fine	0.532 \| good	13.651 \| good	0.206 \| good
2025-07-11T00:00:00.000Z	80 \| moderate	11.537 \| good	32.951 \| good	64.366 \| fine	0.478 \| good	7.983 \| good	0.22 \| good
2025-07-11T01:00:00.000Z	77 \| moderate	12.298 \| fine	46.641 \| good	62.602 \| fine	0.623 \| good	8.716 \| good	0.201 \| good
2025-07-11T02:00:00.000Z	71 \| moderate	10.464 \| good	43.058 \| good	61.055 \| fine	0.649 \| good	10.106 \| good	0.216 \| good
2025-07-11T03:00:00.000Z	54 \| moderate	9.556 \| good	34.792 \| good	55.664 \| fine	0.68 \| good	12.439 \| good	0.287 \| good
2025-07-11T04:00:00.000Z	49 \| good	9.415 \| good	48.896 \| good	48.823 \| good	0.632 \| good	13.989 \| good	0.287 \| good
2025-07-11T05:00:00.000Z	52 \| moderate	9.721 \| good	40.264 \| good	41.133 \| good	0.727 \| good	17.078 \| good	0.341 \| good
2025-07-11T06:00:00.000Z	58 \| moderate	13.384 \| fine	46.88 \| good	32.692 \| good	0.596 \| good	17.665 \| good	0.295 \| good
2025-07-11T07:00:00.000Z	56 \| moderate	11.942 \| good	39.797 \| good	22.948 \| good	0.607 \| good	17.631 \| good	0.291 \| good
2025-07-11T08:00:00.000Z	60 \| moderate	13.884 \| fine	39.859 \| good	21.455 \| good	0.557 \| good	14.868 \| good	0.289 \| good
2025-07-11T09:00:00.000Z	60 \| moderate	13.825 \| fine	36.546 \| good	18.339 \| good	0.53 \| good	14.215 \| good	0.212 \| good
2025-07-11T10:00:00.000Z	58 \| moderate	12.793 \| fine	36.715 \| good	17.516 \| good	0.549 \| good	12.255 \| good	0.22 \| good
2025-07-11T11:00:00.000Z	56 \| moderate	11.558 \| good	34.337 \| good	17.701 \| good	0.609 \| good	10.076 \| good	0.214 \| good
2025-07-11T12:00:00.000Z	56 \| moderate	11.77 \| good	33.935 \| good	15.314 \| good	0.438 \| good	9.983 \| good	0.214 \| good
2025-07-11T13:00:00.000Z	56 \| moderate	12.211 \| fine	38.342 \| good	14.727 \| good	0.302 \| good	11.46 \| good	0.232 \| good
2025-07-11T14:00:00.000Z	56 \| moderate	11.996 \| good	47.44 \| good	18.885 \| good	0.35 \| good	12.802 \| good	0.288 \| good
2025-07-11T15:00:00.000Z	58 \| moderate	13.299 \| fine	48.356 \| good	21.313 \| good	0.313 \| good	12.271 \| good	0.268 \| good
2025-07-11T16:00:00.000Z	62 \| moderate	14.633 \| fine	54.092 \| good	26.889 \| good	0.391 \| good	12.59 \| good	0.287 \| good
2025-07-11T17:00:00.000Z	64 \| moderate	15.665 \| fine	56.219 \| fine	29.043 \| good	0.602 \| good	15.237 \| good	0.342 \| good
2025-07-11T18:00:00.000Z	64 \| moderate	15.665 \| fine	56.219 \| fine	29.043 \| good	0.602 \| good	15.237 \| good	0.342 \| good
2025-07-11T15:00:00.000Z	81 \| moderate	24.909 \| fine	109.179 \| fine	27.037 \| good	4.447 \| good	14.222 \| good	0.2 \| good
2025-07-11T16:00:00.000Z	88 \| moderate	29.111 \| fine	126.715 \| fine	38.869 \| good	4.268 \| good	12.083 \| good	0.19 \| good
2025-07-11T17:00:00.000Z	90 \| moderate	30.106 \| fine	130.319 \| fine	53.342 \| good	4.088 \| good	9.945 \| good	0.18 \| good
2025-07-11T18:00:00.000Z	105 \| sensitive	27.868 \| fine	120.915 \| fine	72.484 \| moderate	3.909 \| good	7.807 \| good	0.17 \| good
2025-07-11T19:00:00.000Z	140 \| sensitive	22.132 \| fine	96.351 \| fine	81.888 \| moderate	3.639 \| good	6.449 \| good	0.164 \| good
2025-07-11T20:00:00.000Z	143 \| sensitive	17.418 \| fine	77.124 \| fine	82.998 \| moderate	3.369 \| good	5.092 \| good	0.157 \| good
2025-07-11T21:00:00.000Z	126 \| sensitive	14.272 \| fine	63.443 \| fine	78.033 \| moderate	3.099 \| good	3.734 \| good	0.151 \| good
2025-07-11T22:00:00.000Z	101 \| sensitive	13.237 \| fine	59.606 \| fine	71.27 \| moderate	2.956 \| good	3.72 \| good	0.147 \| good
2025-07-11T23:00:00.000Z	64 \| moderate	12.37 \| fine	55.787 \| fine	58.515 \| fine	2.814 \| good	3.707 \| good	0.144 \| good
2025-07-12T00:00:00.000Z	54 \| moderate	10.977 \| good	48.424 \| good	55.652 \| fine	2.672 \| good	3.693 \| good	0.14 \| good
2025-07-12T01:00:00.000Z	52 \| moderate	10.309 \| good	45.267 \| good	47.932 \| good	2.703 \| good	5.527 \| good	0.143 \| good
2025-07-12T02:00:00.000Z	52 \| moderate	10.451 \| good	46.239 \| good	39.902 \| good	2.733 \| good	7.361 \| good	0.146 \| good
2025-07-12T03:00:00.000Z	49 \| good	9.157 \| good	40.963 \| good	31.292 \| good	2.764 \| good	9.195 \| good	0.149 \| good
2025-07-12T04:00:00.000Z	52 \| moderate	10.32 \| good	45.454 \| good	28.593 \| good	2.936 \| good	11.533 \| good	0.156 \| good
2025-07-12T05:00:00.000Z	52 \| moderate	9.876 \| good	44.109 \| good	25.83 \| good	3.107 \| good	13.872 \| good	0.164 \| good
2025-07-12T06:00:00.000Z	52 \| moderate	10.221 \| good	45.275 \| good	23.776 \| good	3.278 \| good	16.21 \| good	0.171 \| good
2025-07-12T07:00:00.000Z	52 \| moderate	9.919 \| good	44.022 \| good	21.794 \| good	3.342 \| good	17.367 \| good	0.177 \| good
2025-07-12T08:00:00.000Z	54 \| moderate	10.885 \| good	48.135 \| good	20.047 \| good	3.407 \| good	18.524 \| good	0.182 \| good
2025-07-12T09:00:00.000Z	52 \| moderate	9.878 \| good	44.199 \| good	20.344 \| good	3.471 \| good	19.68 \| good	0.188 \| good
2025-07-12T10:00:00.000Z	52 \| moderate	9.931 \| good	44.255 \| good	21.181 \| good	3.455 \| good	19.383 \| good	0.185 \| good
2025-07-12T11:00:00.000Z	56 \| moderate	11.613 \| good	51.019 \| good	20.805 \| good	3.44 \| good	19.085 \| good	0.181 \| good
2025-07-12T12:00:00.000Z	56 \| moderate	11.592 \| good	50.987 \| good	15.328 \| good	3.424 \| good	18.787 \| good	0.178 \| good
2025-07-12T13:00:00.000Z	56 \| moderate	12.017 \| good	54.237 \| good	17.561 \| good	3.712 \| good	16.532 \| good	0.176 \| good
2025-07-12T14:00:00.000Z	60 \| moderate	14.153 \| fine	62.908 \| fine	19.21 \| good	3.999 \| good	14.276 \| good	0.174 \| good
2025-07-12T15:00:00.000Z	66 \| moderate	17.168 \| fine	76.479 \| fine	23.937 \| good	4.287 \| good	12.02 \| good	0.172 \| good
2025-07-12T16:00:00.000Z	71 \| moderate	20.167 \| fine	88.563 \| fine	32.372 \| good	4.104 \| good	10.539 \| good	0.168 \| good
2025-07-12T17:00:00.000Z	73 \| moderate	21.489 \| fine	93.921 \| fine	42.9 \| good	3.922 \| good	9.058 \| good	0.163 \| good
2025-07-12T18:00:00.000Z	73 \| moderate	20.846 \| fine	91.965 \| fine	59.247 \| fine	3.739 \| good	7.576 \| good	0.158 \| good
2025-07-12T19:00:00.000Z	93 \| moderate	17.25 \| fine	76.707 \| fine	67.695 \| fine	3.557 \| good	6.538 \| good	0.154 \| good
2025-07-12T20:00:00.000Z	105 \| sensitive	15.852 \| fine	70.82 \| fine	71.814 \| moderate	3.375 \| good	5.5 \| good	0.15 \| good
2025-07-12T21:00:00.000Z	108 \| sensitive	14.537 \| fine	64.875 \| fine	73.433 \| moderate	3.193 \| good	4.462 \| good	0.146 \| good
2025-07-12T22:00:00.000Z	108 \| sensitive	13.929 \| fine	63.176 \| fine	72.936 \| moderate	3.214 \| good	4.518 \| good	0.144 \| good
2025-07-12T23:00:00.000Z	100 \| moderate	13.855 \| fine	61.652 \| fine	69.823 \| fine	3.236 \| good	4.573 \| good	0.143 \| good
2025-07-13T00:00:00.000Z	100 \| moderate	14.583 \| fine	65.268 \| fine	70.419 \| fine	3.257 \| good	4.629 \| good	0.141 \| good
2025-07-13T01:00:00.000Z	67 \| moderate	14.297 \| fine	63.497 \| fine	59.74 \| fine	3.419 \| good	6.601 \| good	0.145 \| good
2025-07-13T02:00:00.000Z	60 \| moderate	14.342 \| fine	64.733 \| fine	51.099 \| good	3.581 \| good	8.573 \| good	0.148 \| good
2025-07-13T03:00:00.000Z	52 \| moderate	9.967 \| good	44.509 \| good	37.823 \| good	3.743 \| good	10.545 \| good	0.151 \| good
2025-07-13T04:00:00.000Z	52 \| moderate	10.385 \| good	46.139 \| good	31.509 \| good	3.906 \| good	12.751 \| good	0.157 \| good
2025-07-13T05:00:00.000Z	52 \| moderate	9.523 \| good	42.232 \| good	29.223 \| good	4.068 \| good	14.957 \| good	0.163 \| good
2025-07-13T06:00:00.000Z	49 \| good	9.365 \| good	41.745 \| good	26.311 \| good	4.23 \| good	17.162 \| good	0.169 \| good
2025-07-13T07:00:00.000Z	54 \| moderate	10.743 \| good	47.87 \| good	26.245 \| good	4.28 \| good	18.491 \| good	0.175 \| good
2025-07-13T08:00:00.000Z	56 \| moderate	12.135 \| fine	54.668 \| good	25.113 \| good	4.33 \| good	19.82 \| good	0.181 \| good
2025-07-13T09:00:00.000Z	54 \| moderate	11.172 \| good	49.293 \| good	25.875 \| good	4.38 \| good	21.149 \| good	0.188 \| good
2025-07-13T10:00:00.000Z	58 \| moderate	12.682 \| fine	56.528 \| fine	24.563 \| good	4.353 \| good	20.671 \| good	0.185 \| good
2025-07-13T11:00:00.000Z	60 \| moderate	13.623 \| fine	60.666 \| fine	23.979 \| good	4.325 \| good	20.194 \| good	0.182 \| good
2025-07-13T12:00:00.000Z	58 \| moderate	12.755 \| fine	57.754 \| fine	15.265 \| good	4.298 \| good	19.716 \| good	0.179 \| good
2025-07-13T13:00:00.000Z	62 \| moderate	14.727 \| fine	66.034 \| fine	17.975 \| good	4.45 \| good	17.101 \| good	0.174 \| good
2025-07-13T14:00:00.000Z	67 \| moderate	17.543 \| fine	77.931 \| fine	22.405 \| good	4.601 \| good	14.486 \| good	0.17 \| good

Diamond Bar

Empower business decisions with accurate air quality data

Diamond Bar, California air quality map: Real-time AQI near you

0.24ppm

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 Diamond Bar, California updated?

Air quality data for Diamond Bar, California is updated on an hourly basis.

When did Diamond Bar, California experience the worst air quality in the last 24 hours?

The worst air quality in Diamond Bar, California was recorded at 11:00:00 on 2025-07-10.

When did Diamond Bar, California have its best air quality in the last 24 hours?

The best air quality in Diamond Bar, California was recorded at 04:00:00 on 2025-07-11.

What is the real-time air quality index for Diamond Bar, California?

The real-time air quality index in Diamond Bar, California is 56, currently categorized as Moderate.

Which pollutant is found most often in Diamond Bar, California?

The most common pollutant in Diamond Bar, California is PM2.5.

What can I do if the air quality in Diamond Bar, California is poor?

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

What are the current PM_2.5 levels in Diamond Bar, California?

The measured PM_2.5 levels in Diamond Bar, California at present are 11.996 μg/m³.

What are the current PM₁₀ levels at Diamond Bar, California?

The current PM₁₀ levels in Diamond Bar, California are 47.44 μg/m³.

What are the current carbon monoxide (CO) levels at Diamond Bar, California?

The current carbon monoxide (CO) level in Diamond Bar, California is 0.288 ppm.

What are the current sulfur dioxide (SO₂) levels at Diamond Bar, California?

The current sulfur dioxide (SO₂) levels in Diamond Bar, California are 0.35 ppb.

What are the current ozone (O₃) levels at Diamond Bar, California?

The current ozone (O₃) levels at Diamond Bar, California is 18.885 ppm.

What are the current nitrogen dioxide (NO₂) levels at Diamond Bar, California?

The current nitrogen dioxide (NO₂) levels at Diamond Bar, California is 12.802 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-07-09T19:00:00.000Z	60 \| moderate	13.731 \| fine	37.243 \| good	27.108 \| good	0.632 \| good	15.624 \| good	0.242 \| good
2025-07-09T20:00:00.000Z	84 \| moderate	11.524 \| good	42.426 \| good	65.067 \| fine	0.604 \| good	11.474 \| good	0.205 \| good
2025-07-09T21:00:00.000Z	80 \| moderate	11.012 \| good	21.415 \| good	64.086 \| fine	0.619 \| good	16.857 \| good	0.205 \| good
2025-07-09T22:00:00.000Z	101 \| sensitive	11.078 \| good	39.639 \| good	71.013 \| moderate	0.729 \| good	10.586 \| good	0.237 \| good
2025-07-09T23:00:00.000Z	122 \| sensitive	12.769 \| fine	39.972 \| good	77.035 \| moderate	0.625 \| good	11.056 \| good	0.229 \| good
2025-07-10T00:00:00.000Z	133 \| sensitive	13.538 \| fine	38.977 \| good	80.001 \| moderate	0.594 \| good	12.218 \| good	0.287 \| good
2025-07-10T01:00:00.000Z	105 \| sensitive	12.088 \| good	36.042 \| good	72.073 \| moderate	0.723 \| good	12.45 \| good	0.287 \| good
2025-07-10T02:00:00.000Z	100 \| moderate	10.581 \| good	30.641 \| good	69.873 \| fine	0.72 \| good	12.238 \| good	0.268 \| good
2025-07-10T03:00:00.000Z	52 \| moderate	9.959 \| good	33.295 \| good	53.541 \| good	0.7 \| good	15.026 \| good	0.268 \| good
2025-07-10T04:00:00.000Z	52 \| moderate	9.784 \| good	33.591 \| good	42.855 \| good	0.646 \| good	17.627 \| good	0.268 \| good
2025-07-10T05:00:00.000Z	49 \| good	8.735 \| good	33.477 \| good	32.408 \| good	0.533 \| good	17.503 \| good	0.273 \| good
2025-07-10T06:00:00.000Z	49 \| good	8.947 \| good	34.545 \| good	24.943 \| good	0.459 \| good	18.304 \| good	0.295 \| good
2025-07-10T07:00:00.000Z	49 \| good	9.451 \| good	28.709 \| good	19.525 \| good	0.551 \| good	19.246 \| good	0.329 \| good
2025-07-10T08:00:00.000Z	49 \| good	9.173 \| good	37.955 \| good	19.896 \| good	0.524 \| good	19.56 \| good	0.296 \| good
2025-07-10T09:00:00.000Z	52 \| moderate	10.337 \| good	34.593 \| good	14.924 \| good	0.486 \| good	20.2 \| good	0.323 \| good
2025-07-10T10:00:00.000Z	54 \| moderate	10.686 \| good	37.861 \| good	11.265 \| good	0.468 \| good	24.399 \| good	0.318 \| good
2025-07-10T11:00:00.000Z	54 \| moderate	10.629 \| good	36.702 \| good	8.64 \| good	0.471 \| good	24.399 \| good	0.285 \| good
2025-07-10T12:00:00.000Z	49 \| good	8.569 \| good	27.7 \| good	8.919 \| good	0.388 \| good	21.925 \| good	0.362 \| good
2025-07-10T13:00:00.000Z	49 \| good	8.9 \| good	25.392 \| good	7.516 \| good	0.344 \| good	24.687 \| good	0.418 \| good
2025-07-10T14:00:00.000Z	54 \| moderate	10.53 \| good	33.775 \| good	8.494 \| good	0.514 \| good	22.917 \| good	0.451 \| good
2025-07-10T15:00:00.000Z	56 \| moderate	11.637 \| good	39.365 \| good	15.701 \| good	0.797 \| good	24.587 \| good	0.494 \| good
2025-07-10T16:00:00.000Z	58 \| moderate	13.482 \| fine	37.274 \| good	23.952 \| good	0.834 \| good	26.722 \| good	0.431 \| good
2025-07-10T17:00:00.000Z	56 \| moderate	12.101 \| fine	37.1 \| good	32.15 \| good	0.878 \| good	25.223 \| good	0.442 \| good
2025-07-10T18:00:00.000Z	60 \| moderate	14.15 \| fine	44.633 \| good	42.193 \| good	0.857 \| good	22.761 \| good	0.379 \| good
2025-07-10T19:00:00.000Z	62 \| moderate	14.876 \| fine	38.264 \| good	54.708 \| good	0.985 \| good	15.645 \| good	0.317 \| good
2025-07-10T20:00:00.000Z	84 \| moderate	14.398 \| fine	48.493 \| good	65.053 \| fine	0.881 \| good	13.195 \| good	0.286 \| good
2025-07-10T21:00:00.000Z	97 \| moderate	13.796 \| fine	47.339 \| good	68.729 \| fine	0.631 \| good	11.574 \| good	0.281 \| good
2025-07-10T22:00:00.000Z	97 \| moderate	12.932 \| fine	42.91 \| good	69.37 \| fine	0.549 \| good	11.766 \| good	0.281 \| good
2025-07-10T23:00:00.000Z	100 \| moderate	11.516 \| good	36.089 \| good	69.766 \| fine	0.532 \| good	13.651 \| good	0.206 \| good
2025-07-11T00:00:00.000Z	80 \| moderate	11.537 \| good	32.951 \| good	64.366 \| fine	0.478 \| good	7.983 \| good	0.22 \| good
2025-07-11T01:00:00.000Z	77 \| moderate	12.298 \| fine	46.641 \| good	62.602 \| fine	0.623 \| good	8.716 \| good	0.201 \| good
2025-07-11T02:00:00.000Z	71 \| moderate	10.464 \| good	43.058 \| good	61.055 \| fine	0.649 \| good	10.106 \| good	0.216 \| good
2025-07-11T03:00:00.000Z	54 \| moderate	9.556 \| good	34.792 \| good	55.664 \| fine	0.68 \| good	12.439 \| good	0.287 \| good
2025-07-11T04:00:00.000Z	49 \| good	9.415 \| good	48.896 \| good	48.823 \| good	0.632 \| good	13.989 \| good	0.287 \| good
2025-07-11T05:00:00.000Z	52 \| moderate	9.721 \| good	40.264 \| good	41.133 \| good	0.727 \| good	17.078 \| good	0.341 \| good
2025-07-11T06:00:00.000Z	58 \| moderate	13.384 \| fine	46.88 \| good	32.692 \| good	0.596 \| good	17.665 \| good	0.295 \| good
2025-07-11T07:00:00.000Z	56 \| moderate	11.942 \| good	39.797 \| good	22.948 \| good	0.607 \| good	17.631 \| good	0.291 \| good
2025-07-11T08:00:00.000Z	60 \| moderate	13.884 \| fine	39.859 \| good	21.455 \| good	0.557 \| good	14.868 \| good	0.289 \| good
2025-07-11T09:00:00.000Z	60 \| moderate	13.825 \| fine	36.546 \| good	18.339 \| good	0.53 \| good	14.215 \| good	0.212 \| good
2025-07-11T10:00:00.000Z	58 \| moderate	12.793 \| fine	36.715 \| good	17.516 \| good	0.549 \| good	12.255 \| good	0.22 \| good
2025-07-11T11:00:00.000Z	56 \| moderate	11.558 \| good	34.337 \| good	17.701 \| good	0.609 \| good	10.076 \| good	0.214 \| good
2025-07-11T12:00:00.000Z	56 \| moderate	11.77 \| good	33.935 \| good	15.314 \| good	0.438 \| good	9.983 \| good	0.214 \| good
2025-07-11T13:00:00.000Z	56 \| moderate	12.211 \| fine	38.342 \| good	14.727 \| good	0.302 \| good	11.46 \| good	0.232 \| good
2025-07-11T14:00:00.000Z	56 \| moderate	11.996 \| good	47.44 \| good	18.885 \| good	0.35 \| good	12.802 \| good	0.288 \| good
2025-07-11T15:00:00.000Z	58 \| moderate	13.299 \| fine	48.356 \| good	21.313 \| good	0.313 \| good	12.271 \| good	0.268 \| good
2025-07-11T16:00:00.000Z	62 \| moderate	14.633 \| fine	54.092 \| good	26.889 \| good	0.391 \| good	12.59 \| good	0.287 \| good
2025-07-11T17:00:00.000Z	64 \| moderate	15.665 \| fine	56.219 \| fine	29.043 \| good	0.602 \| good	15.237 \| good	0.342 \| good
2025-07-11T18:00:00.000Z	64 \| moderate	15.665 \| fine	56.219 \| fine	29.043 \| good	0.602 \| good	15.237 \| good	0.342 \| good
2025-07-11T15:00:00.000Z	81 \| moderate	24.909 \| fine	109.179 \| fine	27.037 \| good	4.447 \| good	14.222 \| good	0.2 \| good
2025-07-11T16:00:00.000Z	88 \| moderate	29.111 \| fine	126.715 \| fine	38.869 \| good	4.268 \| good	12.083 \| good	0.19 \| good
2025-07-11T17:00:00.000Z	90 \| moderate	30.106 \| fine	130.319 \| fine	53.342 \| good	4.088 \| good	9.945 \| good	0.18 \| good
2025-07-11T18:00:00.000Z	105 \| sensitive	27.868 \| fine	120.915 \| fine	72.484 \| moderate	3.909 \| good	7.807 \| good	0.17 \| good
2025-07-11T19:00:00.000Z	140 \| sensitive	22.132 \| fine	96.351 \| fine	81.888 \| moderate	3.639 \| good	6.449 \| good	0.164 \| good
2025-07-11T20:00:00.000Z	143 \| sensitive	17.418 \| fine	77.124 \| fine	82.998 \| moderate	3.369 \| good	5.092 \| good	0.157 \| good
2025-07-11T21:00:00.000Z	126 \| sensitive	14.272 \| fine	63.443 \| fine	78.033 \| moderate	3.099 \| good	3.734 \| good	0.151 \| good
2025-07-11T22:00:00.000Z	101 \| sensitive	13.237 \| fine	59.606 \| fine	71.27 \| moderate	2.956 \| good	3.72 \| good	0.147 \| good
2025-07-11T23:00:00.000Z	64 \| moderate	12.37 \| fine	55.787 \| fine	58.515 \| fine	2.814 \| good	3.707 \| good	0.144 \| good
2025-07-12T00:00:00.000Z	54 \| moderate	10.977 \| good	48.424 \| good	55.652 \| fine	2.672 \| good	3.693 \| good	0.14 \| good
2025-07-12T01:00:00.000Z	52 \| moderate	10.309 \| good	45.267 \| good	47.932 \| good	2.703 \| good	5.527 \| good	0.143 \| good
2025-07-12T02:00:00.000Z	52 \| moderate	10.451 \| good	46.239 \| good	39.902 \| good	2.733 \| good	7.361 \| good	0.146 \| good
2025-07-12T03:00:00.000Z	49 \| good	9.157 \| good	40.963 \| good	31.292 \| good	2.764 \| good	9.195 \| good	0.149 \| good
2025-07-12T04:00:00.000Z	52 \| moderate	10.32 \| good	45.454 \| good	28.593 \| good	2.936 \| good	11.533 \| good	0.156 \| good
2025-07-12T05:00:00.000Z	52 \| moderate	9.876 \| good	44.109 \| good	25.83 \| good	3.107 \| good	13.872 \| good	0.164 \| good
2025-07-12T06:00:00.000Z	52 \| moderate	10.221 \| good	45.275 \| good	23.776 \| good	3.278 \| good	16.21 \| good	0.171 \| good
2025-07-12T07:00:00.000Z	52 \| moderate	9.919 \| good	44.022 \| good	21.794 \| good	3.342 \| good	17.367 \| good	0.177 \| good
2025-07-12T08:00:00.000Z	54 \| moderate	10.885 \| good	48.135 \| good	20.047 \| good	3.407 \| good	18.524 \| good	0.182 \| good
2025-07-12T09:00:00.000Z	52 \| moderate	9.878 \| good	44.199 \| good	20.344 \| good	3.471 \| good	19.68 \| good	0.188 \| good
2025-07-12T10:00:00.000Z	52 \| moderate	9.931 \| good	44.255 \| good	21.181 \| good	3.455 \| good	19.383 \| good	0.185 \| good
2025-07-12T11:00:00.000Z	56 \| moderate	11.613 \| good	51.019 \| good	20.805 \| good	3.44 \| good	19.085 \| good	0.181 \| good
2025-07-12T12:00:00.000Z	56 \| moderate	11.592 \| good	50.987 \| good	15.328 \| good	3.424 \| good	18.787 \| good	0.178 \| good
2025-07-12T13:00:00.000Z	56 \| moderate	12.017 \| good	54.237 \| good	17.561 \| good	3.712 \| good	16.532 \| good	0.176 \| good
2025-07-12T14:00:00.000Z	60 \| moderate	14.153 \| fine	62.908 \| fine	19.21 \| good	3.999 \| good	14.276 \| good	0.174 \| good
2025-07-12T15:00:00.000Z	66 \| moderate	17.168 \| fine	76.479 \| fine	23.937 \| good	4.287 \| good	12.02 \| good	0.172 \| good
2025-07-12T16:00:00.000Z	71 \| moderate	20.167 \| fine	88.563 \| fine	32.372 \| good	4.104 \| good	10.539 \| good	0.168 \| good
2025-07-12T17:00:00.000Z	73 \| moderate	21.489 \| fine	93.921 \| fine	42.9 \| good	3.922 \| good	9.058 \| good	0.163 \| good
2025-07-12T18:00:00.000Z	73 \| moderate	20.846 \| fine	91.965 \| fine	59.247 \| fine	3.739 \| good	7.576 \| good	0.158 \| good
2025-07-12T19:00:00.000Z	93 \| moderate	17.25 \| fine	76.707 \| fine	67.695 \| fine	3.557 \| good	6.538 \| good	0.154 \| good
2025-07-12T20:00:00.000Z	105 \| sensitive	15.852 \| fine	70.82 \| fine	71.814 \| moderate	3.375 \| good	5.5 \| good	0.15 \| good
2025-07-12T21:00:00.000Z	108 \| sensitive	14.537 \| fine	64.875 \| fine	73.433 \| moderate	3.193 \| good	4.462 \| good	0.146 \| good
2025-07-12T22:00:00.000Z	108 \| sensitive	13.929 \| fine	63.176 \| fine	72.936 \| moderate	3.214 \| good	4.518 \| good	0.144 \| good
2025-07-12T23:00:00.000Z	100 \| moderate	13.855 \| fine	61.652 \| fine	69.823 \| fine	3.236 \| good	4.573 \| good	0.143 \| good
2025-07-13T00:00:00.000Z	100 \| moderate	14.583 \| fine	65.268 \| fine	70.419 \| fine	3.257 \| good	4.629 \| good	0.141 \| good
2025-07-13T01:00:00.000Z	67 \| moderate	14.297 \| fine	63.497 \| fine	59.74 \| fine	3.419 \| good	6.601 \| good	0.145 \| good
2025-07-13T02:00:00.000Z	60 \| moderate	14.342 \| fine	64.733 \| fine	51.099 \| good	3.581 \| good	8.573 \| good	0.148 \| good
2025-07-13T03:00:00.000Z	52 \| moderate	9.967 \| good	44.509 \| good	37.823 \| good	3.743 \| good	10.545 \| good	0.151 \| good
2025-07-13T04:00:00.000Z	52 \| moderate	10.385 \| good	46.139 \| good	31.509 \| good	3.906 \| good	12.751 \| good	0.157 \| good
2025-07-13T05:00:00.000Z	52 \| moderate	9.523 \| good	42.232 \| good	29.223 \| good	4.068 \| good	14.957 \| good	0.163 \| good
2025-07-13T06:00:00.000Z	49 \| good	9.365 \| good	41.745 \| good	26.311 \| good	4.23 \| good	17.162 \| good	0.169 \| good
2025-07-13T07:00:00.000Z	54 \| moderate	10.743 \| good	47.87 \| good	26.245 \| good	4.28 \| good	18.491 \| good	0.175 \| good
2025-07-13T08:00:00.000Z	56 \| moderate	12.135 \| fine	54.668 \| good	25.113 \| good	4.33 \| good	19.82 \| good	0.181 \| good
2025-07-13T09:00:00.000Z	54 \| moderate	11.172 \| good	49.293 \| good	25.875 \| good	4.38 \| good	21.149 \| good	0.188 \| good
2025-07-13T10:00:00.000Z	58 \| moderate	12.682 \| fine	56.528 \| fine	24.563 \| good	4.353 \| good	20.671 \| good	0.185 \| good
2025-07-13T11:00:00.000Z	60 \| moderate	13.623 \| fine	60.666 \| fine	23.979 \| good	4.325 \| good	20.194 \| good	0.182 \| good
2025-07-13T12:00:00.000Z	58 \| moderate	12.755 \| fine	57.754 \| fine	15.265 \| good	4.298 \| good	19.716 \| good	0.179 \| good
2025-07-13T13:00:00.000Z	62 \| moderate	14.727 \| fine	66.034 \| fine	17.975 \| good	4.45 \| good	17.101 \| good	0.174 \| good
2025-07-13T14:00:00.000Z	67 \| moderate	17.543 \| fine	77.931 \| fine	22.405 \| good	4.601 \| good	14.486 \| good	0.17 \| good

Live air quality index in Diamond Bar, California today

Major air pollutants in Diamond Bar, California

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Diamond Bar, California air quality forecast and history

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Diamond Bar, California air quality map: Real-time AQI near you

Air quality in nearby cities

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Chino, California

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Frequently asked questions

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What is the real-time air quality index for Diamond Bar, California?

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What are the current PM2.5 levels in Diamond Bar, California?

What are the current PM10 levels at Diamond Bar, California?

What are the current carbon monoxide (CO) levels at Diamond Bar, California?

What are the current sulfur dioxide (SO2) levels at Diamond Bar, California?

What are the current ozone (O3) levels at Diamond Bar, California?

What are the current nitrogen dioxide (NO2) levels at Diamond Bar, 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 Diamond Bar, California?

What are the current PM₁₀ levels at Diamond Bar, California?

What are the current sulfur dioxide (SO₂) levels at Diamond Bar, California?

What are the current ozone (O₃) levels at Diamond Bar, California?

What are the current nitrogen dioxide (NO₂) levels at Diamond Bar, California?