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

The current PM10 levels in Diamond Bar, California are 31.756 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 0.534 ppb.

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

The current ozone (O3) levels at Diamond Bar, California is 48.818 ppm.

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

The current nitrogen dioxide (NO2) levels at Diamond Bar, California is 9.096 ppb.

Real-time 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)

Good

Diamond Bar, California

Last updated: ... (Local time)

Common air pollutants in Diamond Bar, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

7.15 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

25.54 μg/m³

155

255

425

605+

Ozone (O₃)

38.12 ppb

201

201+

Sulfur Dioxide (SO₂)

0.43 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

6.78 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.20 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
2025-07-24T02:00:00.000Z	48 \| good	7.107 \| good	25.21 \| good	51.534 \| good	0.765 \| good	11.089 \| good	0.184 \| good
2025-07-24T03:00:00.000Z	22 \| good	3.817 \| good	16.724 \| good	21.959 \| good	3.897 \| good	10.113 \| good	0.147 \| good
2025-07-24T04:00:00.000Z	33 \| good	5.872 \| good	25.599 \| good	35.027 \| good	0.436 \| good	13.926 \| good	0.184 \| good
2025-07-24T05:00:00.000Z	28 \| good	5.141 \| good	22.463 \| good	30.125 \| good	0.437 \| good	12.629 \| good	0.196 \| good
2025-07-24T06:00:00.000Z	25 \| good	4.402 \| good	17.157 \| good	26.782 \| good	0.431 \| good	13.323 \| good	0.184 \| good
2025-07-24T07:00:00.000Z	38 \| good	7.12 \| good	23.152 \| good	22.978 \| good	0.393 \| good	13.057 \| good	0.202 \| good
2025-07-24T08:00:00.000Z	38 \| good	6.972 \| good	18.522 \| good	18.645 \| good	0.343 \| good	15.921 \| good	0.255 \| good
2025-07-24T09:00:00.000Z	33 \| good	5.676 \| good	20.494 \| good	18.076 \| good	0.271 \| good	17.216 \| good	0.258 \| good
2025-07-24T10:00:00.000Z	27 \| good	4.982 \| good	21.621 \| good	13.108 \| good	0.27 \| good	18.495 \| good	0.255 \| good
2025-07-24T11:00:00.000Z	27 \| good	5.098 \| good	21.483 \| good	11.85 \| good	0.251 \| good	18.177 \| good	0.265 \| good
2025-07-24T12:00:00.000Z	27 \| good	4.676 \| good	16.684 \| good	9.477 \| good	0.326 \| good	18.092 \| good	0.239 \| good
2025-07-24T13:00:00.000Z	33 \| good	5.905 \| good	22.078 \| good	7.63 \| good	0.273 \| good	18.676 \| good	0.323 \| good
2025-07-24T14:00:00.000Z	49 \| good	8.73 \| good	43.216 \| good	7.614 \| good	0.315 \| good	19.696 \| good	0.369 \| good
2025-07-24T15:00:00.000Z	52 \| moderate	9.961 \| good	40.119 \| good	11.235 \| good	0.441 \| good	19.099 \| good	0.389 \| good
2025-07-24T16:00:00.000Z	56 \| moderate	12.082 \| good	55.251 \| fine	17.618 \| good	0.462 \| good	16.809 \| good	0.258 \| good
2025-07-24T17:00:00.000Z	58 \| moderate	13.019 \| fine	49.346 \| good	22.841 \| good	0.419 \| good	15.146 \| good	0.196 \| good
2025-07-24T18:00:00.000Z	62 \| moderate	14.785 \| fine	52.951 \| good	29.185 \| good	0.453 \| good	12.248 \| good	0.199 \| good
2025-07-24T19:00:00.000Z	44 \| good	7.967 \| good	33.387 \| good	33.848 \| good	0.479 \| good	9.198 \| good	0.199 \| good
2025-07-24T20:00:00.000Z	44 \| good	7.77 \| good	30.126 \| good	38.655 \| good	0.564 \| good	9.462 \| good	0.196 \| good
2025-07-24T21:00:00.000Z	44 \| good	7.607 \| good	30.893 \| good	46.497 \| good	0.508 \| good	8.796 \| good	0.213 \| good
2025-07-24T22:00:00.000Z	45 \| good	6.93 \| good	31.756 \| good	48.818 \| good	0.534 \| good	9.096 \| good	0.205 \| good
2025-07-24T23:00:00.000Z	49 \| good	7.164 \| good	30.799 \| good	52.574 \| good	0.442 \| good	9.026 \| good	0.184 \| good
2025-07-25T00:00:00.000Z	50 \| good	7.659 \| good	33.306 \| good	53.946 \| good	0.491 \| good	9.387 \| good	0.184 \| good
2025-07-25T01:00:00.000Z	44 \| good	7.596 \| good	26.623 \| good	46.466 \| good	0.473 \| good	9.047 \| good	0.198 \| good
2025-07-25T02:00:00.000Z	37 \| good	6.368 \| good	27.629 \| good	40.431 \| good	0.432 \| good	9.237 \| good	0.184 \| good
2025-07-25T03:00:00.000Z	32 \| good	5.168 \| good	21.211 \| good	34.83 \| good	0.473 \| good	11.368 \| good	0.184 \| good
2025-07-25T04:00:00.000Z	31 \| good	4.925 \| good	32.501 \| good	28.425 \| good	0.445 \| good	15.169 \| good	0.188 \| good
2025-07-25T05:00:00.000Z	22 \| good	4.357 \| good	15.44 \| good	19.916 \| good	0.474 \| good	17.771 \| good	0.262 \| good
2025-07-25T06:00:00.000Z	22 \| good	4.391 \| good	14.709 \| good	16.389 \| good	0.38 \| good	13.102 \| good	0.264 \| good
2025-07-25T07:00:00.000Z	22 \| good	4.377 \| good	15.573 \| good	13.908 \| good	0.417 \| good	11.119 \| good	0.202 \| good
2025-07-25T08:00:00.000Z	16 \| good	3.242 \| good	11.479 \| good	12.073 \| good	0.384 \| good	11.363 \| good	0.202 \| good
2025-07-25T09:00:00.000Z	16 \| good	3.273 \| good	12.901 \| good	9.55 \| good	0.283 \| good	13.5 \| good	0.258 \| good
2025-07-25T10:00:00.000Z	22 \| good	4.116 \| good	14.144 \| good	9.156 \| good	0.326 \| good	15.961 \| good	0.26 \| good
2025-07-25T11:00:00.000Z	27 \| good	4.833 \| good	14.261 \| good	11.004 \| good	0.274 \| good	14.916 \| good	0.196 \| good
2025-07-25T12:00:00.000Z	27 \| good	5.134 \| good	15.323 \| good	9.719 \| good	0.284 \| good	15.428 \| good	0.172 \| good
2025-07-25T13:00:00.000Z	22 \| good	4.345 \| good	18.316 \| good	8.362 \| good	0.255 \| good	17.884 \| good	0.279 \| good
2025-07-25T14:00:00.000Z	27 \| good	4.959 \| good	24.656 \| good	6.384 \| good	0.313 \| good	17.43 \| good	0.263 \| good
2025-07-25T15:00:00.000Z	27 \| good	4.661 \| good	17.409 \| good	9.542 \| good	0.42 \| good	12.959 \| good	0.258 \| good
2025-07-25T16:00:00.000Z	33 \| good	5.595 \| good	27.807 \| good	11.395 \| good	0.371 \| good	12.119 \| good	0.257 \| good
2025-07-25T17:00:00.000Z	33 \| good	6.003 \| good	21.279 \| good	11.668 \| good	0.363 \| good	12.834 \| good	0.254 \| good
2025-07-25T18:00:00.000Z	33 \| good	5.517 \| good	20.723 \| good	25.617 \| good	0.299 \| good	7.663 \| good	0.187 \| good
2025-07-25T19:00:00.000Z	33 \| good	5.939 \| good	23.014 \| good	32.708 \| good	0.267 \| good	7.782 \| good	0.194 \| good
2025-07-25T20:00:00.000Z	33 \| good	6.321 \| good	23.132 \| good	35.677 \| good	0.291 \| good	7.521 \| good	0.191 \| good
2025-07-25T21:00:00.000Z	38 \| good	5.423 \| good	23.329 \| good	41.492 \| good	0.28 \| good	7.319 \| good	0.208 \| good
2025-07-25T22:00:00.000Z	38 \| good	5.84 \| good	26.6 \| good	40.651 \| good	0.272 \| good	6.969 \| good	0.196 \| good
2025-07-25T23:00:00.000Z	38 \| good	6.552 \| good	29.499 \| good	40.78 \| good	0.279 \| good	7.006 \| good	0.191 \| good
2025-07-26T00:00:00.000Z	38 \| good	7.105 \| good	38.713 \| good	41.149 \| good	0.376 \| good	6.769 \| good	0.196 \| good
2025-07-26T01:00:00.000Z	38 \| good	7.152 \| good	25.538 \| good	38.122 \| good	0.433 \| good	6.778 \| good	0.198 \| good
2025-07-26T01:00:00.000Z	38 \| good	7.152 \| good	25.538 \| good	38.122 \| good	0.433 \| good	6.778 \| good	0.198 \| good
2025-07-24T23:00:00.000Z	51 \| moderate	5.624 \| good	24.333 \| good	55.304 \| fine	3.457 \| good	4.288 \| good	0.139 \| good
2025-07-25T00:00:00.000Z	42 \| good	4.482 \| good	19.206 \| good	44.522 \| good	3.242 \| good	3.913 \| good	0.134 \| good
2025-07-25T01:00:00.000Z	32 \| good	3.416 \| good	14.699 \| good	34.505 \| good	3.317 \| good	5.73 \| good	0.139 \| good
2025-07-25T02:00:00.000Z	21 \| good	2.61 \| good	10.965 \| good	22.525 \| good	3.392 \| good	7.546 \| good	0.143 \| good
2025-07-25T03:00:00.000Z	16 \| good	2.668 \| good	10.986 \| good	17.304 \| good	3.466 \| good	9.362 \| good	0.148 \| good
2025-07-25T04:00:00.000Z	16 \| good	2.58 \| good	10.253 \| good	14.145 \| good	3.644 \| good	11.422 \| good	0.155 \| good
2025-07-25T05:00:00.000Z	12 \| good	1.685 \| good	6.707 \| good	11.762 \| good	3.823 \| good	13.483 \| good	0.161 \| good
2025-07-25T06:00:00.000Z	15 \| good	1.848 \| good	7.643 \| good	10.94 \| good	4.001 \| good	15.543 \| good	0.168 \| good
2025-07-25T07:00:00.000Z	16 \| good	2.937 \| good	11.883 \| good	9.517 \| good	4.09 \| good	16.923 \| good	0.178 \| good
2025-07-25T08:00:00.000Z	17 \| good	3.07 \| good	13.278 \| good	7.608 \| good	4.178 \| good	18.303 \| good	0.187 \| good
2025-07-25T09:00:00.000Z	22 \| good	3.794 \| good	16.703 \| good	7.399 \| good	4.267 \| good	19.683 \| good	0.197 \| good
2025-07-25T10:00:00.000Z	22 \| good	4.451 \| good	18.981 \| good	5.408 \| good	4.309 \| good	19.797 \| good	0.197 \| good
2025-07-25T11:00:00.000Z	27 \| good	4.538 \| good	19.847 \| good	6.474 \| good	4.351 \| good	19.911 \| good	0.198 \| good
2025-07-25T12:00:00.000Z	27 \| good	5.063 \| good	21.643 \| good	4.498 \| good	4.394 \| good	20.025 \| good	0.198 \| good
2025-07-25T13:00:00.000Z	38 \| good	6.834 \| good	30.387 \| good	5.932 \| good	4.841 \| good	17.726 \| good	0.195 \| good
2025-07-25T14:00:00.000Z	33 \| good	5.93 \| good	26.333 \| good	11.493 \| good	5.289 \| good	15.427 \| good	0.192 \| good
2025-07-25T15:00:00.000Z	33 \| good	5.854 \| good	25.838 \| good	15.318 \| good	5.736 \| good	13.128 \| good	0.19 \| good
2025-07-25T16:00:00.000Z	33 \| good	5.716 \| good	25.327 \| good	20.265 \| good	5.427 \| good	11.701 \| good	0.183 \| good
2025-07-25T17:00:00.000Z	27 \| good	4.874 \| good	20.835 \| good	25.131 \| good	5.117 \| good	10.274 \| good	0.177 \| good
2025-07-25T18:00:00.000Z	29 \| good	3.282 \| good	14.084 \| good	31.042 \| good	4.808 \| good	8.846 \| good	0.17 \| good
2025-07-25T19:00:00.000Z	36 \| good	3.151 \| good	13.45 \| good	39.218 \| good	4.395 \| good	7.437 \| good	0.165 \| good
2025-07-25T20:00:00.000Z	42 \| good	4.831 \| good	20.908 \| good	45.41 \| good	3.982 \| good	6.027 \| good	0.159 \| good
2025-07-25T21:00:00.000Z	44 \| good	4.503 \| good	19.706 \| good	47.644 \| good	3.569 \| good	4.618 \| good	0.153 \| good
2025-07-25T22:00:00.000Z	44 \| good	6.046 \| good	26.531 \| good	48.387 \| good	3.416 \| good	4.36 \| good	0.15 \| good
2025-07-25T23:00:00.000Z	44 \| good	5.221 \| good	22.708 \| good	46.873 \| good	3.262 \| good	4.103 \| good	0.147 \| good
2025-07-26T00:00:00.000Z	36 \| good	3.714 \| good	16.097 \| good	39.027 \| good	3.109 \| good	3.846 \| good	0.144 \| good
2025-07-26T01:00:00.000Z	30 \| good	3.181 \| good	13.718 \| good	32.174 \| good	3.216 \| good	5.593 \| good	0.148 \| good
2025-07-26T02:00:00.000Z	22 \| good	2.196 \| good	8.952 \| good	24.135 \| good	3.323 \| good	7.34 \| good	0.152 \| good
2025-07-26T03:00:00.000Z	19 \| good	2.655 \| good	10.664 \| good	19.842 \| good	3.431 \| good	9.087 \| good	0.156 \| good
2025-07-26T04:00:00.000Z	17 \| good	1.803 \| good	7.26 \| good	18.147 \| good	3.575 \| good	11.052 \| good	0.162 \| good
2025-07-26T05:00:00.000Z	16 \| good	1.232 \| good	4.9 \| good	16.866 \| good	3.719 \| good	13.017 \| good	0.169 \| good
2025-07-26T06:00:00.000Z	16 \| good	1.376 \| good	5.226 \| good	16.747 \| good	3.864 \| good	14.982 \| good	0.176 \| good
2025-07-26T07:00:00.000Z	15 \| good	1.763 \| good	6.994 \| good	15.485 \| good	3.87 \| good	15.678 \| good	0.178 \| good
2025-07-26T08:00:00.000Z	15 \| good	2.223 \| good	8.984 \| good	13.776 \| good	3.876 \| good	16.373 \| good	0.18 \| good
2025-07-26T09:00:00.000Z	16 \| good	2.587 \| good	10.674 \| good	13.847 \| good	3.882 \| good	17.069 \| good	0.182 \| good
2025-07-26T10:00:00.000Z	16 \| good	3.192 \| good	13.775 \| good	15.992 \| good	3.924 \| good	17.497 \| good	0.183 \| good
2025-07-26T11:00:00.000Z	17 \| good	2.566 \| good	10.528 \| good	16.6 \| good	3.966 \| good	17.925 \| good	0.184 \| good
2025-07-26T12:00:00.000Z	17 \| good	3.034 \| good	13.176 \| good	12.205 \| good	4.008 \| good	18.353 \| good	0.185 \| good
2025-07-26T13:00:00.000Z	16 \| good	2.986 \| good	12.053 \| good	15.455 \| good	4.234 \| good	16.16 \| good	0.188 \| good
2025-07-26T14:00:00.000Z	14 \| good	2.207 \| good	8.901 \| good	15.076 \| good	4.459 \| good	13.967 \| good	0.191 \| good
2025-07-26T15:00:00.000Z	16 \| good	2.77 \| good	11.573 \| good	17.491 \| good	4.685 \| good	11.774 \| good	0.194 \| good
2025-07-26T16:00:00.000Z	22 \| good	3.526 \| good	15.358 \| good	21.017 \| good	4.362 \| good	10.163 \| good	0.184 \| good
2025-07-26T17:00:00.000Z	23 \| good	3.793 \| good	16.783 \| good	24.94 \| good	4.04 \| good	8.551 \| good	0.174 \| good
2025-07-26T18:00:00.000Z	28 \| good	4.146 \| good	18.157 \| good	30.135 \| good	3.717 \| good	6.94 \| good	0.164 \| good
2025-07-26T19:00:00.000Z	34 \| good	5.026 \| good	21.647 \| good	37.307 \| good	3.589 \| good	6.128 \| good	0.161 \| good
2025-07-26T20:00:00.000Z	40 \| good	7.202 \| good	31.876 \| good	42.647 \| good	3.46 \| good	5.316 \| good	0.159 \| good
2025-07-26T21:00:00.000Z	44 \| good	6.628 \| good	29.551 \| good	48.262 \| good	3.332 \| good	4.503 \| good	0.156 \| good
2025-07-26T22:00:00.000Z	48 \| good	6.894 \| good	30.53 \| good	51.91 \| good	3.208 \| good	4.273 \| good	0.153 \| good

Diamond Bar

Empower business decisions with accurate air quality data

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

0.19ppm

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

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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 2025-07-23.

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 03:00:00 on 2025-07-24.

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

The real-time air quality index in Diamond Bar, California is 45, currently categorized as Good.

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

The most common pollutant in Diamond Bar, California is O3.

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 6.93 μg/m³.

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

The current PM₁₀ levels in Diamond Bar, California are 31.756 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 0.205 ppm.

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

The current sulfur dioxide (SO₂) levels in Diamond Bar, California are 0.534 ppb.

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

The current ozone (O₃) levels at Diamond Bar, California is 48.818 ppm.

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

The current nitrogen dioxide (NO₂) levels at Diamond Bar, California is 9.096 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-07-24T02:00:00.000Z	48 \| good	7.107 \| good	25.21 \| good	51.534 \| good	0.765 \| good	11.089 \| good	0.184 \| good
2025-07-24T03:00:00.000Z	22 \| good	3.817 \| good	16.724 \| good	21.959 \| good	3.897 \| good	10.113 \| good	0.147 \| good
2025-07-24T04:00:00.000Z	33 \| good	5.872 \| good	25.599 \| good	35.027 \| good	0.436 \| good	13.926 \| good	0.184 \| good
2025-07-24T05:00:00.000Z	28 \| good	5.141 \| good	22.463 \| good	30.125 \| good	0.437 \| good	12.629 \| good	0.196 \| good
2025-07-24T06:00:00.000Z	25 \| good	4.402 \| good	17.157 \| good	26.782 \| good	0.431 \| good	13.323 \| good	0.184 \| good
2025-07-24T07:00:00.000Z	38 \| good	7.12 \| good	23.152 \| good	22.978 \| good	0.393 \| good	13.057 \| good	0.202 \| good
2025-07-24T08:00:00.000Z	38 \| good	6.972 \| good	18.522 \| good	18.645 \| good	0.343 \| good	15.921 \| good	0.255 \| good
2025-07-24T09:00:00.000Z	33 \| good	5.676 \| good	20.494 \| good	18.076 \| good	0.271 \| good	17.216 \| good	0.258 \| good
2025-07-24T10:00:00.000Z	27 \| good	4.982 \| good	21.621 \| good	13.108 \| good	0.27 \| good	18.495 \| good	0.255 \| good
2025-07-24T11:00:00.000Z	27 \| good	5.098 \| good	21.483 \| good	11.85 \| good	0.251 \| good	18.177 \| good	0.265 \| good
2025-07-24T12:00:00.000Z	27 \| good	4.676 \| good	16.684 \| good	9.477 \| good	0.326 \| good	18.092 \| good	0.239 \| good
2025-07-24T13:00:00.000Z	33 \| good	5.905 \| good	22.078 \| good	7.63 \| good	0.273 \| good	18.676 \| good	0.323 \| good
2025-07-24T14:00:00.000Z	49 \| good	8.73 \| good	43.216 \| good	7.614 \| good	0.315 \| good	19.696 \| good	0.369 \| good
2025-07-24T15:00:00.000Z	52 \| moderate	9.961 \| good	40.119 \| good	11.235 \| good	0.441 \| good	19.099 \| good	0.389 \| good
2025-07-24T16:00:00.000Z	56 \| moderate	12.082 \| good	55.251 \| fine	17.618 \| good	0.462 \| good	16.809 \| good	0.258 \| good
2025-07-24T17:00:00.000Z	58 \| moderate	13.019 \| fine	49.346 \| good	22.841 \| good	0.419 \| good	15.146 \| good	0.196 \| good
2025-07-24T18:00:00.000Z	62 \| moderate	14.785 \| fine	52.951 \| good	29.185 \| good	0.453 \| good	12.248 \| good	0.199 \| good
2025-07-24T19:00:00.000Z	44 \| good	7.967 \| good	33.387 \| good	33.848 \| good	0.479 \| good	9.198 \| good	0.199 \| good
2025-07-24T20:00:00.000Z	44 \| good	7.77 \| good	30.126 \| good	38.655 \| good	0.564 \| good	9.462 \| good	0.196 \| good
2025-07-24T21:00:00.000Z	44 \| good	7.607 \| good	30.893 \| good	46.497 \| good	0.508 \| good	8.796 \| good	0.213 \| good
2025-07-24T22:00:00.000Z	45 \| good	6.93 \| good	31.756 \| good	48.818 \| good	0.534 \| good	9.096 \| good	0.205 \| good
2025-07-24T23:00:00.000Z	49 \| good	7.164 \| good	30.799 \| good	52.574 \| good	0.442 \| good	9.026 \| good	0.184 \| good
2025-07-25T00:00:00.000Z	50 \| good	7.659 \| good	33.306 \| good	53.946 \| good	0.491 \| good	9.387 \| good	0.184 \| good
2025-07-25T01:00:00.000Z	44 \| good	7.596 \| good	26.623 \| good	46.466 \| good	0.473 \| good	9.047 \| good	0.198 \| good
2025-07-25T02:00:00.000Z	37 \| good	6.368 \| good	27.629 \| good	40.431 \| good	0.432 \| good	9.237 \| good	0.184 \| good
2025-07-25T03:00:00.000Z	32 \| good	5.168 \| good	21.211 \| good	34.83 \| good	0.473 \| good	11.368 \| good	0.184 \| good
2025-07-25T04:00:00.000Z	31 \| good	4.925 \| good	32.501 \| good	28.425 \| good	0.445 \| good	15.169 \| good	0.188 \| good
2025-07-25T05:00:00.000Z	22 \| good	4.357 \| good	15.44 \| good	19.916 \| good	0.474 \| good	17.771 \| good	0.262 \| good
2025-07-25T06:00:00.000Z	22 \| good	4.391 \| good	14.709 \| good	16.389 \| good	0.38 \| good	13.102 \| good	0.264 \| good
2025-07-25T07:00:00.000Z	22 \| good	4.377 \| good	15.573 \| good	13.908 \| good	0.417 \| good	11.119 \| good	0.202 \| good
2025-07-25T08:00:00.000Z	16 \| good	3.242 \| good	11.479 \| good	12.073 \| good	0.384 \| good	11.363 \| good	0.202 \| good
2025-07-25T09:00:00.000Z	16 \| good	3.273 \| good	12.901 \| good	9.55 \| good	0.283 \| good	13.5 \| good	0.258 \| good
2025-07-25T10:00:00.000Z	22 \| good	4.116 \| good	14.144 \| good	9.156 \| good	0.326 \| good	15.961 \| good	0.26 \| good
2025-07-25T11:00:00.000Z	27 \| good	4.833 \| good	14.261 \| good	11.004 \| good	0.274 \| good	14.916 \| good	0.196 \| good
2025-07-25T12:00:00.000Z	27 \| good	5.134 \| good	15.323 \| good	9.719 \| good	0.284 \| good	15.428 \| good	0.172 \| good
2025-07-25T13:00:00.000Z	22 \| good	4.345 \| good	18.316 \| good	8.362 \| good	0.255 \| good	17.884 \| good	0.279 \| good
2025-07-25T14:00:00.000Z	27 \| good	4.959 \| good	24.656 \| good	6.384 \| good	0.313 \| good	17.43 \| good	0.263 \| good
2025-07-25T15:00:00.000Z	27 \| good	4.661 \| good	17.409 \| good	9.542 \| good	0.42 \| good	12.959 \| good	0.258 \| good
2025-07-25T16:00:00.000Z	33 \| good	5.595 \| good	27.807 \| good	11.395 \| good	0.371 \| good	12.119 \| good	0.257 \| good
2025-07-25T17:00:00.000Z	33 \| good	6.003 \| good	21.279 \| good	11.668 \| good	0.363 \| good	12.834 \| good	0.254 \| good
2025-07-25T18:00:00.000Z	33 \| good	5.517 \| good	20.723 \| good	25.617 \| good	0.299 \| good	7.663 \| good	0.187 \| good
2025-07-25T19:00:00.000Z	33 \| good	5.939 \| good	23.014 \| good	32.708 \| good	0.267 \| good	7.782 \| good	0.194 \| good
2025-07-25T20:00:00.000Z	33 \| good	6.321 \| good	23.132 \| good	35.677 \| good	0.291 \| good	7.521 \| good	0.191 \| good
2025-07-25T21:00:00.000Z	38 \| good	5.423 \| good	23.329 \| good	41.492 \| good	0.28 \| good	7.319 \| good	0.208 \| good
2025-07-25T22:00:00.000Z	38 \| good	5.84 \| good	26.6 \| good	40.651 \| good	0.272 \| good	6.969 \| good	0.196 \| good
2025-07-25T23:00:00.000Z	38 \| good	6.552 \| good	29.499 \| good	40.78 \| good	0.279 \| good	7.006 \| good	0.191 \| good
2025-07-26T00:00:00.000Z	38 \| good	7.105 \| good	38.713 \| good	41.149 \| good	0.376 \| good	6.769 \| good	0.196 \| good
2025-07-26T01:00:00.000Z	38 \| good	7.152 \| good	25.538 \| good	38.122 \| good	0.433 \| good	6.778 \| good	0.198 \| good
2025-07-26T01:00:00.000Z	38 \| good	7.152 \| good	25.538 \| good	38.122 \| good	0.433 \| good	6.778 \| good	0.198 \| good
2025-07-24T23:00:00.000Z	51 \| moderate	5.624 \| good	24.333 \| good	55.304 \| fine	3.457 \| good	4.288 \| good	0.139 \| good
2025-07-25T00:00:00.000Z	42 \| good	4.482 \| good	19.206 \| good	44.522 \| good	3.242 \| good	3.913 \| good	0.134 \| good
2025-07-25T01:00:00.000Z	32 \| good	3.416 \| good	14.699 \| good	34.505 \| good	3.317 \| good	5.73 \| good	0.139 \| good
2025-07-25T02:00:00.000Z	21 \| good	2.61 \| good	10.965 \| good	22.525 \| good	3.392 \| good	7.546 \| good	0.143 \| good
2025-07-25T03:00:00.000Z	16 \| good	2.668 \| good	10.986 \| good	17.304 \| good	3.466 \| good	9.362 \| good	0.148 \| good
2025-07-25T04:00:00.000Z	16 \| good	2.58 \| good	10.253 \| good	14.145 \| good	3.644 \| good	11.422 \| good	0.155 \| good
2025-07-25T05:00:00.000Z	12 \| good	1.685 \| good	6.707 \| good	11.762 \| good	3.823 \| good	13.483 \| good	0.161 \| good
2025-07-25T06:00:00.000Z	15 \| good	1.848 \| good	7.643 \| good	10.94 \| good	4.001 \| good	15.543 \| good	0.168 \| good
2025-07-25T07:00:00.000Z	16 \| good	2.937 \| good	11.883 \| good	9.517 \| good	4.09 \| good	16.923 \| good	0.178 \| good
2025-07-25T08:00:00.000Z	17 \| good	3.07 \| good	13.278 \| good	7.608 \| good	4.178 \| good	18.303 \| good	0.187 \| good
2025-07-25T09:00:00.000Z	22 \| good	3.794 \| good	16.703 \| good	7.399 \| good	4.267 \| good	19.683 \| good	0.197 \| good
2025-07-25T10:00:00.000Z	22 \| good	4.451 \| good	18.981 \| good	5.408 \| good	4.309 \| good	19.797 \| good	0.197 \| good
2025-07-25T11:00:00.000Z	27 \| good	4.538 \| good	19.847 \| good	6.474 \| good	4.351 \| good	19.911 \| good	0.198 \| good
2025-07-25T12:00:00.000Z	27 \| good	5.063 \| good	21.643 \| good	4.498 \| good	4.394 \| good	20.025 \| good	0.198 \| good
2025-07-25T13:00:00.000Z	38 \| good	6.834 \| good	30.387 \| good	5.932 \| good	4.841 \| good	17.726 \| good	0.195 \| good
2025-07-25T14:00:00.000Z	33 \| good	5.93 \| good	26.333 \| good	11.493 \| good	5.289 \| good	15.427 \| good	0.192 \| good
2025-07-25T15:00:00.000Z	33 \| good	5.854 \| good	25.838 \| good	15.318 \| good	5.736 \| good	13.128 \| good	0.19 \| good
2025-07-25T16:00:00.000Z	33 \| good	5.716 \| good	25.327 \| good	20.265 \| good	5.427 \| good	11.701 \| good	0.183 \| good
2025-07-25T17:00:00.000Z	27 \| good	4.874 \| good	20.835 \| good	25.131 \| good	5.117 \| good	10.274 \| good	0.177 \| good
2025-07-25T18:00:00.000Z	29 \| good	3.282 \| good	14.084 \| good	31.042 \| good	4.808 \| good	8.846 \| good	0.17 \| good
2025-07-25T19:00:00.000Z	36 \| good	3.151 \| good	13.45 \| good	39.218 \| good	4.395 \| good	7.437 \| good	0.165 \| good
2025-07-25T20:00:00.000Z	42 \| good	4.831 \| good	20.908 \| good	45.41 \| good	3.982 \| good	6.027 \| good	0.159 \| good
2025-07-25T21:00:00.000Z	44 \| good	4.503 \| good	19.706 \| good	47.644 \| good	3.569 \| good	4.618 \| good	0.153 \| good
2025-07-25T22:00:00.000Z	44 \| good	6.046 \| good	26.531 \| good	48.387 \| good	3.416 \| good	4.36 \| good	0.15 \| good
2025-07-25T23:00:00.000Z	44 \| good	5.221 \| good	22.708 \| good	46.873 \| good	3.262 \| good	4.103 \| good	0.147 \| good
2025-07-26T00:00:00.000Z	36 \| good	3.714 \| good	16.097 \| good	39.027 \| good	3.109 \| good	3.846 \| good	0.144 \| good
2025-07-26T01:00:00.000Z	30 \| good	3.181 \| good	13.718 \| good	32.174 \| good	3.216 \| good	5.593 \| good	0.148 \| good
2025-07-26T02:00:00.000Z	22 \| good	2.196 \| good	8.952 \| good	24.135 \| good	3.323 \| good	7.34 \| good	0.152 \| good
2025-07-26T03:00:00.000Z	19 \| good	2.655 \| good	10.664 \| good	19.842 \| good	3.431 \| good	9.087 \| good	0.156 \| good
2025-07-26T04:00:00.000Z	17 \| good	1.803 \| good	7.26 \| good	18.147 \| good	3.575 \| good	11.052 \| good	0.162 \| good
2025-07-26T05:00:00.000Z	16 \| good	1.232 \| good	4.9 \| good	16.866 \| good	3.719 \| good	13.017 \| good	0.169 \| good
2025-07-26T06:00:00.000Z	16 \| good	1.376 \| good	5.226 \| good	16.747 \| good	3.864 \| good	14.982 \| good	0.176 \| good
2025-07-26T07:00:00.000Z	15 \| good	1.763 \| good	6.994 \| good	15.485 \| good	3.87 \| good	15.678 \| good	0.178 \| good
2025-07-26T08:00:00.000Z	15 \| good	2.223 \| good	8.984 \| good	13.776 \| good	3.876 \| good	16.373 \| good	0.18 \| good
2025-07-26T09:00:00.000Z	16 \| good	2.587 \| good	10.674 \| good	13.847 \| good	3.882 \| good	17.069 \| good	0.182 \| good
2025-07-26T10:00:00.000Z	16 \| good	3.192 \| good	13.775 \| good	15.992 \| good	3.924 \| good	17.497 \| good	0.183 \| good
2025-07-26T11:00:00.000Z	17 \| good	2.566 \| good	10.528 \| good	16.6 \| good	3.966 \| good	17.925 \| good	0.184 \| good
2025-07-26T12:00:00.000Z	17 \| good	3.034 \| good	13.176 \| good	12.205 \| good	4.008 \| good	18.353 \| good	0.185 \| good
2025-07-26T13:00:00.000Z	16 \| good	2.986 \| good	12.053 \| good	15.455 \| good	4.234 \| good	16.16 \| good	0.188 \| good
2025-07-26T14:00:00.000Z	14 \| good	2.207 \| good	8.901 \| good	15.076 \| good	4.459 \| good	13.967 \| good	0.191 \| good
2025-07-26T15:00:00.000Z	16 \| good	2.77 \| good	11.573 \| good	17.491 \| good	4.685 \| good	11.774 \| good	0.194 \| good
2025-07-26T16:00:00.000Z	22 \| good	3.526 \| good	15.358 \| good	21.017 \| good	4.362 \| good	10.163 \| good	0.184 \| good
2025-07-26T17:00:00.000Z	23 \| good	3.793 \| good	16.783 \| good	24.94 \| good	4.04 \| good	8.551 \| good	0.174 \| good
2025-07-26T18:00:00.000Z	28 \| good	4.146 \| good	18.157 \| good	30.135 \| good	3.717 \| good	6.94 \| good	0.164 \| good
2025-07-26T19:00:00.000Z	34 \| good	5.026 \| good	21.647 \| good	37.307 \| good	3.589 \| good	6.128 \| good	0.161 \| good
2025-07-26T20:00:00.000Z	40 \| good	7.202 \| good	31.876 \| good	42.647 \| good	3.46 \| good	5.316 \| good	0.159 \| good
2025-07-26T21:00:00.000Z	44 \| good	6.628 \| good	29.551 \| good	48.262 \| good	3.332 \| good	4.503 \| good	0.156 \| good
2025-07-26T22:00:00.000Z	48 \| good	6.894 \| good	30.53 \| good	51.91 \| good	3.208 \| good	4.273 \| good	0.153 \| good

Real-time air quality index in Diamond Bar, California today

Common 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

Empower business decisions with accurate air quality data

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

Air quality in nearby cities

Walnut, California

Chino Hills, California

Pomona, California

South San Jose Hills, California

Rowland Heights, California

Chino, 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 Diamond Bar, California updated?

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

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

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

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

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

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?