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

The current PM10 levels in Diamond Bar, California are 53.974 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 0.99 ppb.

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

The current ozone (O3) levels at Diamond Bar, California is 72.613 ppm.

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

The current nitrogen dioxide (NO2) levels at Diamond Bar, California is 10.493 ppb.

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

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

The measured PM2.5 levels in Diamond Bar, California at present are 14.64 μg/m3.

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)

108

Unhealthy for sensitive groups

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)

14.64 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

53.97 μg/m³

155

255

425

605+

Ozone (O₃)

72.61 ppb

201

201+

Sulfur Dioxide (SO₂)

0.99 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

10.49 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.29 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
2026-07-22T00:00:00.000Z	54 \| moderate	10.996 \| good	60.1 \| fine	53.637 \| good	0.563 \| good	10.081 \| good	0.181 \| good
2026-07-22T01:00:00.000Z	49 \| good	8.817 \| good	33.985 \| good	43.4 \| good	0.57 \| good	10.33 \| good	0.209 \| good
2026-07-22T02:00:00.000Z	52 \| moderate	9.642 \| good	42.261 \| good	32.228 \| good	0.553 \| good	9.073 \| good	0.181 \| good
2026-07-22T03:00:00.000Z	38 \| good	6.572 \| good	24.342 \| good	31.034 \| good	0.476 \| good	8.62 \| good	0.209 \| good
2026-07-22T04:00:00.000Z	38 \| good	7.205 \| good	36.094 \| good	27.821 \| good	0.46 \| good	10.17 \| good	0.238 \| good
2026-07-22T05:00:00.000Z	33 \| good	5.828 \| good	23.282 \| good	23.118 \| good	0.625 \| good	10.017 \| good	0.277 \| good
2026-07-22T06:00:00.000Z	27 \| good	5.064 \| good	26.741 \| good	21.188 \| good	0.506 \| good	9.962 \| good	0.294 \| good
2026-07-22T07:00:00.000Z	33 \| good	5.936 \| good	25.007 \| good	24.409 \| good	0.507 \| good	10.407 \| good	0.294 \| good
2026-07-22T08:00:00.000Z	33 \| good	5.951 \| good	21.347 \| good	16.239 \| good	0.489 \| good	12.044 \| good	0.279 \| good
2026-07-22T09:00:00.000Z	44 \| good	7.697 \| good	41.851 \| good	9.211 \| good	0.508 \| good	13.523 \| good	0.223 \| good
2026-07-22T10:00:00.000Z	27 \| good	4.524 \| good	20.573 \| good	13.237 \| good	0.458 \| good	15.204 \| good	0.223 \| good
2026-07-22T11:00:00.000Z	33 \| good	6.075 \| good	27.127 \| good	12.9 \| good	0.594 \| good	14.849 \| good	0.195 \| good
2026-07-22T12:00:00.000Z	22 \| good	4.201 \| good	20.384 \| good	13.245 \| good	0.491 \| good	16.834 \| good	0.24 \| good
2026-07-22T13:00:00.000Z	44 \| good	7.802 \| good	23.67 \| good	11.028 \| good	0.491 \| good	16.111 \| good	0.24 \| good
2026-07-22T14:00:00.000Z	33 \| good	6.236 \| good	19.737 \| good	13.233 \| good	0.506 \| good	19.563 \| good	0.388 \| good
2026-07-22T15:00:00.000Z	49 \| good	9.166 \| good	40.337 \| good	15.533 \| good	0.703 \| good	15.548 \| good	0.343 \| good
2026-07-22T16:00:00.000Z	45 \| good	8.34 \| good	48.752 \| good	16.397 \| good	0.739 \| good	12.727 \| good	0.294 \| good
2026-07-22T17:00:00.000Z	49 \| good	9.129 \| good	38.354 \| good	19.638 \| good	0.716 \| good	12.887 \| good	0.266 \| good
2026-07-22T18:00:00.000Z	49 \| good	8.634 \| good	20.47 \| good	22.592 \| good	0.689 \| good	11.984 \| good	0.266 \| good
2026-07-22T19:00:00.000Z	49 \| good	9.406 \| good	30.735 \| good	29.283 \| good	0.677 \| good	11.939 \| good	0.288 \| good
2026-07-22T20:00:00.000Z	52 \| moderate	10.032 \| good	43.262 \| good	38.769 \| good	0.77 \| good	12.019 \| good	0.288 \| good
2026-07-22T21:00:00.000Z	54 \| moderate	10.507 \| good	52.752 \| good	47.269 \| good	0.75 \| good	10.83 \| good	0.266 \| good
2026-07-22T22:00:00.000Z	51 \| moderate	9.312 \| good	54.965 \| good	50.673 \| good	0.709 \| good	11.933 \| good	0.251 \| good
2026-07-22T23:00:00.000Z	64 \| moderate	9.738 \| good	38.241 \| good	58.776 \| fine	0.563 \| good	10.683 \| good	0.279 \| good
2026-07-23T00:00:00.000Z	71 \| moderate	9.926 \| good	41.33 \| good	61.023 \| fine	0.635 \| good	9.565 \| good	0.251 \| good
2026-07-23T01:00:00.000Z	43 \| good	7.324 \| good	26.086 \| good	46.234 \| good	0.71 \| good	7.977 \| good	0.251 \| good
2026-07-23T02:00:00.000Z	44 \| good	8.105 \| good	28.449 \| good	36.509 \| good	0.726 \| good	7.837 \| good	0.279 \| good
2026-07-23T03:00:00.000Z	49 \| good	8.728 \| good	38.626 \| good	27.946 \| good	1.193 \| good	5.827 \| good	0.113 \| good
2026-07-23T04:00:00.000Z	49 \| good	8.849 \| good	36.705 \| good	27.941 \| good	0.638 \| good	10.63 \| good	0.279 \| good
2026-07-23T05:00:00.000Z	44 \| good	7.977 \| good	35.648 \| good	22.682 \| good	0.758 \| good	9.996 \| good	0.279 \| good
2026-07-23T06:00:00.000Z	49 \| good	8.571 \| good	29.337 \| good	23.727 \| good	0.61 \| good	8.926 \| good	0.308 \| good
2026-07-23T07:00:00.000Z	33 \| good	6.228 \| good	30.052 \| good	23.736 \| good	0.594 \| good	8.186 \| good	0.308 \| good
2026-07-23T08:00:00.000Z	38 \| good	6.815 \| good	27.763 \| good	16.575 \| good	0.566 \| good	11.259 \| good	0.294 \| good
2026-07-23T09:00:00.000Z	38 \| good	6.732 \| good	29.062 \| good	12.198 \| good	0.634 \| good	12.214 \| good	0.237 \| good
2026-07-23T10:00:00.000Z	33 \| good	5.772 \| good	25.771 \| good	12.243 \| good	0.586 \| good	12.789 \| good	0.255 \| good
2026-07-23T11:00:00.000Z	49 \| good	8.535 \| good	47.401 \| good	10.575 \| good	0.771 \| good	15.421 \| good	0.237 \| good
2026-07-23T12:00:00.000Z	49 \| good	9.185 \| good	50.135 \| good	10.506 \| good	0.593 \| good	14.867 \| good	0.277 \| good
2026-07-23T13:00:00.000Z	44 \| good	8.181 \| good	21.397 \| good	9.192 \| good	0.596 \| good	18.974 \| good	0.277 \| good
2026-07-23T14:00:00.000Z	49 \| good	9.043 \| good	26.274 \| good	12.526 \| good	0.688 \| good	15.829 \| good	0.433 \| good
2026-07-23T15:00:00.000Z	49 \| good	9.176 \| good	39.762 \| good	15.97 \| good	0.883 \| good	15.366 \| good	0.459 \| good
2026-07-23T16:00:00.000Z	56 \| moderate	12.441 \| fine	39.331 \| good	18.451 \| good	0.917 \| good	14.895 \| good	0.415 \| good
2026-07-23T17:00:00.000Z	56 \| moderate	11.605 \| good	49.752 \| good	27.202 \| good	0.823 \| good	12.252 \| good	0.348 \| good
2026-07-23T18:00:00.000Z	96 \| moderate	13.598 \| fine	144.846 \| fine	44.614 \| good	0.868 \| good	19.662 \| good	0.352 \| good
2026-07-23T19:00:00.000Z	63 \| moderate	12.778 \| fine	79.108 \| fine	50.81 \| good	0.79 \| good	11.986 \| good	0.325 \| good
2026-07-23T20:00:00.000Z	97 \| moderate	13.995 \| fine	94.19 \| fine	68.563 \| fine	0.767 \| good	10.609 \| good	0.308 \| good
2026-07-23T21:00:00.000Z	101 \| sensitive	15.146 \| fine	81.666 \| fine	71.081 \| moderate	0.83 \| good	11.402 \| good	0.288 \| good
2026-07-23T22:00:00.000Z	108 \| sensitive	14.64 \| fine	53.974 \| good	72.613 \| moderate	0.99 \| good	10.493 \| good	0.29 \| good
2026-07-23T23:00:00.000Z	115 \| sensitive	14.327 \| fine	62.834 \| fine	74.516 \| moderate	1.01 \| good	8.185 \| good	0.294 \| good
2026-07-23T23:00:00.000Z	108 \| sensitive	14.64 \| fine	53.974 \| good	72.613 \| moderate	0.99 \| good	10.493 \| good	0.29 \| good
2026-07-24T00:00:00.000Z	90 \| moderate	14.715 \| fine	66.067 \| fine	67.432 \| fine	1.35 \| good	3.652 \| good	0.127 \| good
2026-07-24T01:00:00.000Z	56 \| moderate	12.494 \| fine	56.163 \| fine	53.794 \| good	1.388 \| good	4.26 \| good	0.128 \| good
2026-07-24T02:00:00.000Z	58 \| moderate	12.979 \| fine	58.391 \| fine	42.745 \| good	1.429 \| good	5.694 \| good	0.131 \| good
2026-07-24T03:00:00.000Z	56 \| moderate	12.043 \| good	54.085 \| good	33.348 \| good	1.442 \| good	7.824 \| good	0.133 \| good
2026-07-24T04:00:00.000Z	56 \| moderate	12.105 \| fine	54.191 \| good	26.701 \| good	1.447 \| good	9.427 \| good	0.135 \| good
2026-07-24T05:00:00.000Z	60 \| moderate	13.721 \| fine	62.161 \| fine	22.283 \| good	1.424 \| good	10.677 \| good	0.137 \| good
2026-07-24T06:00:00.000Z	60 \| moderate	13.844 \| fine	62.317 \| fine	19.663 \| good	1.387 \| good	12.254 \| good	0.14 \| good
2026-07-24T07:00:00.000Z	58 \| moderate	13.168 \| fine	58.841 \| fine	19.354 \| good	1.326 \| good	13.95 \| good	0.146 \| good
2026-07-24T08:00:00.000Z	60 \| moderate	14.063 \| fine	62.555 \| fine	16.844 \| good	1.241 \| good	14.229 \| good	0.148 \| good
2026-07-24T09:00:00.000Z	60 \| moderate	13.999 \| fine	62.727 \| fine	15.021 \| good	1.183 \| good	14.692 \| good	0.15 \| good
2026-07-24T10:00:00.000Z	62 \| moderate	14.617 \| fine	64.737 \| fine	10.14 \| good	1.165 \| good	15.682 \| good	0.155 \| good
2026-07-24T11:00:00.000Z	60 \| moderate	13.765 \| fine	62.132 \| fine	9.487 \| good	1.174 \| good	16.89 \| good	0.16 \| good
2026-07-24T12:00:00.000Z	60 \| moderate	14.48 \| fine	64.4 \| fine	8.171 \| good	1.178 \| good	17.789 \| good	0.165 \| good
2026-07-24T13:00:00.000Z	62 \| moderate	15.435 \| fine	68.283 \| fine	7.701 \| good	1.184 \| good	18.144 \| good	0.17 \| good
2026-07-24T14:00:00.000Z	66 \| moderate	17.358 \| fine	77.441 \| fine	11.589 \| good	1.169 \| good	15.684 \| good	0.176 \| good
2026-07-24T15:00:00.000Z	69 \| moderate	19.466 \| fine	85.767 \| fine	18.232 \| good	1.132 \| good	9.813 \| good	0.145 \| good
2026-07-24T16:00:00.000Z	73 \| moderate	21.475 \| fine	94.242 \| fine	29.851 \| good	1.082 \| good	7.654 \| good	0.137 \| good
2026-07-24T17:00:00.000Z	81 \| moderate	24.879 \| fine	108.238 \| fine	47.801 \| good	1.101 \| good	6.537 \| good	0.135 \| good
2026-07-24T18:00:00.000Z	97 \| moderate	25.675 \| fine	111.701 \| fine	69.406 \| fine	1.12 \| good	5.642 \| good	0.133 \| good
2026-07-24T19:00:00.000Z	133 \| sensitive	22.388 \| fine	97.849 \| fine	79.808 \| moderate	1.119 \| good	4.684 \| good	0.131 \| good
2026-07-24T20:00:00.000Z	119 \| sensitive	16.355 \| fine	72.191 \| fine	76.183 \| moderate	1.103 \| good	3.906 \| good	0.127 \| good
2026-07-24T21:00:00.000Z	101 \| sensitive	11.637 \| good	51.584 \| good	70.878 \| fine	1.099 \| good	3.448 \| good	0.123 \| good
2026-07-24T22:00:00.000Z	90 \| moderate	12.148 \| fine	54.822 \| good	67.151 \| fine	1.111 \| good	3.17 \| good	0.121 \| good
2026-07-24T23:00:00.000Z	77 \| moderate	10.897 \| good	48.034 \| good	62.664 \| fine	1.123 \| good	3.044 \| good	0.118 \| good
2026-07-25T00:00:00.000Z	58 \| moderate	11.156 \| good	49.014 \| good	57.416 \| fine	1.134 \| good	3.198 \| good	0.117 \| good
2026-07-25T01:00:00.000Z	54 \| moderate	11.487 \| good	50.915 \| good	48.793 \| good	1.153 \| good	3.675 \| good	0.116 \| good
2026-07-25T02:00:00.000Z	52 \| moderate	10.484 \| good	46.689 \| good	39.278 \| good	1.171 \| good	4.793 \| good	0.116 \| good
2026-07-25T03:00:00.000Z	56 \| moderate	11.687 \| good	51.319 \| good	31.001 \| good	1.197 \| good	6.575 \| good	0.118 \| good
2026-07-25T04:00:00.000Z	54 \| moderate	10.829 \| good	47.814 \| good	25.437 \| good	1.216 \| good	8.007 \| good	0.12 \| good
2026-07-25T05:00:00.000Z	56 \| moderate	11.663 \| good	51.159 \| good	21.434 \| good	1.218 \| good	9.213 \| good	0.122 \| good
2026-07-25T06:00:00.000Z	54 \| moderate	11.143 \| good	49.554 \| good	19.569 \| good	1.209 \| good	10.813 \| good	0.126 \| good
2026-07-25T07:00:00.000Z	54 \| moderate	10.727 \| good	47.315 \| good	18.404 \| good	1.179 \| good	12.386 \| good	0.131 \| good
2026-07-25T08:00:00.000Z	56 \| moderate	11.925 \| good	53.492 \| good	15.225 \| good	1.14 \| good	13.405 \| good	0.137 \| good
2026-07-25T09:00:00.000Z	56 \| moderate	11.758 \| good	51.853 \| good	12.789 \| good	1.129 \| good	14.853 \| good	0.142 \| good
2026-07-25T10:00:00.000Z	56 \| moderate	11.575 \| good	51.304 \| good	10.982 \| good	1.144 \| good	16.147 \| good	0.148 \| good
2026-07-25T11:00:00.000Z	52 \| moderate	10.175 \| good	44.789 \| good	11.216 \| good	1.15 \| good	17.492 \| good	0.154 \| good
2026-07-25T12:00:00.000Z	54 \| moderate	10.751 \| good	47.464 \| good	9.151 \| good	1.146 \| good	19.622 \| good	0.162 \| good
2026-07-25T13:00:00.000Z	56 \| moderate	11.525 \| good	50.644 \| good	8.48 \| good	1.149 \| good	20.691 \| good	0.172 \| good
2026-07-25T14:00:00.000Z	62 \| moderate	14.857 \| fine	66.193 \| fine	10.705 \| good	1.167 \| good	17.802 \| good	0.181 \| good
2026-07-25T15:00:00.000Z	64 \| moderate	16.329 \| fine	72.262 \| fine	16.485 \| good	1.228 \| good	11.336 \| good	0.147 \| good
2026-07-25T16:00:00.000Z	66 \| moderate	17.488 \| fine	77.78 \| fine	27.645 \| good	1.251 \| good	8.71 \| good	0.135 \| good
2026-07-25T17:00:00.000Z	71 \| moderate	20.057 \| fine	88.071 \| fine	42.385 \| good	1.276 \| good	7.431 \| good	0.132 \| good
2026-07-25T18:00:00.000Z	71 \| moderate	20.011 \| fine	88.569 \| fine	54.903 \| good	1.267 \| good	6.273 \| good	0.129 \| good
2026-07-25T19:00:00.000Z	84 \| moderate	16.313 \| fine	72.315 \| fine	65.013 \| fine	1.246 \| good	5.1 \| good	0.127 \| good
2026-07-25T20:00:00.000Z	101 \| sensitive	15.961 \| fine	70.444 \| fine	71.404 \| moderate	1.222 \| good	4.223 \| good	0.124 \| good
2026-07-25T21:00:00.000Z	129 \| sensitive	14.587 \| fine	64.712 \| fine	79.105 \| moderate	1.23 \| good	3.676 \| good	0.121 \| good
2026-07-25T22:00:00.000Z	119 \| sensitive	14.465 \| fine	65.115 \| fine	76.48 \| moderate	1.266 \| good	3.279 \| good	0.119 \| good
2026-07-25T23:00:00.000Z	119 \| sensitive	11.766 \| good	52.275 \| good	75.659 \| moderate	1.313 \| good	3.036 \| good	0.118 \| good

Diamond Bar

Empower business decisions with accurate air quality data

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

0.32ppm

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 10:00:00 on 2026-07-23.

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 10:00:00 on 2026-07-23.

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

The real-time air quality index in Diamond Bar, California is 108, currently categorized as Unhealthy for Sensitive Groups.

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 14.64 μg/m³.

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

The current PM₁₀ levels in Diamond Bar, California are 53.974 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 0.29 ppm.

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

The current sulfur dioxide (SO₂) levels in Diamond Bar, California are 0.99 ppb.

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

The current ozone (O₃) levels at Diamond Bar, California is 72.613 ppm.

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

The current nitrogen dioxide (NO₂) levels at Diamond Bar, California is 10.493 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-07-22T00:00:00.000Z	54 \| moderate	10.996 \| good	60.1 \| fine	53.637 \| good	0.563 \| good	10.081 \| good	0.181 \| good
2026-07-22T01:00:00.000Z	49 \| good	8.817 \| good	33.985 \| good	43.4 \| good	0.57 \| good	10.33 \| good	0.209 \| good
2026-07-22T02:00:00.000Z	52 \| moderate	9.642 \| good	42.261 \| good	32.228 \| good	0.553 \| good	9.073 \| good	0.181 \| good
2026-07-22T03:00:00.000Z	38 \| good	6.572 \| good	24.342 \| good	31.034 \| good	0.476 \| good	8.62 \| good	0.209 \| good
2026-07-22T04:00:00.000Z	38 \| good	7.205 \| good	36.094 \| good	27.821 \| good	0.46 \| good	10.17 \| good	0.238 \| good
2026-07-22T05:00:00.000Z	33 \| good	5.828 \| good	23.282 \| good	23.118 \| good	0.625 \| good	10.017 \| good	0.277 \| good
2026-07-22T06:00:00.000Z	27 \| good	5.064 \| good	26.741 \| good	21.188 \| good	0.506 \| good	9.962 \| good	0.294 \| good
2026-07-22T07:00:00.000Z	33 \| good	5.936 \| good	25.007 \| good	24.409 \| good	0.507 \| good	10.407 \| good	0.294 \| good
2026-07-22T08:00:00.000Z	33 \| good	5.951 \| good	21.347 \| good	16.239 \| good	0.489 \| good	12.044 \| good	0.279 \| good
2026-07-22T09:00:00.000Z	44 \| good	7.697 \| good	41.851 \| good	9.211 \| good	0.508 \| good	13.523 \| good	0.223 \| good
2026-07-22T10:00:00.000Z	27 \| good	4.524 \| good	20.573 \| good	13.237 \| good	0.458 \| good	15.204 \| good	0.223 \| good
2026-07-22T11:00:00.000Z	33 \| good	6.075 \| good	27.127 \| good	12.9 \| good	0.594 \| good	14.849 \| good	0.195 \| good
2026-07-22T12:00:00.000Z	22 \| good	4.201 \| good	20.384 \| good	13.245 \| good	0.491 \| good	16.834 \| good	0.24 \| good
2026-07-22T13:00:00.000Z	44 \| good	7.802 \| good	23.67 \| good	11.028 \| good	0.491 \| good	16.111 \| good	0.24 \| good
2026-07-22T14:00:00.000Z	33 \| good	6.236 \| good	19.737 \| good	13.233 \| good	0.506 \| good	19.563 \| good	0.388 \| good
2026-07-22T15:00:00.000Z	49 \| good	9.166 \| good	40.337 \| good	15.533 \| good	0.703 \| good	15.548 \| good	0.343 \| good
2026-07-22T16:00:00.000Z	45 \| good	8.34 \| good	48.752 \| good	16.397 \| good	0.739 \| good	12.727 \| good	0.294 \| good
2026-07-22T17:00:00.000Z	49 \| good	9.129 \| good	38.354 \| good	19.638 \| good	0.716 \| good	12.887 \| good	0.266 \| good
2026-07-22T18:00:00.000Z	49 \| good	8.634 \| good	20.47 \| good	22.592 \| good	0.689 \| good	11.984 \| good	0.266 \| good
2026-07-22T19:00:00.000Z	49 \| good	9.406 \| good	30.735 \| good	29.283 \| good	0.677 \| good	11.939 \| good	0.288 \| good
2026-07-22T20:00:00.000Z	52 \| moderate	10.032 \| good	43.262 \| good	38.769 \| good	0.77 \| good	12.019 \| good	0.288 \| good
2026-07-22T21:00:00.000Z	54 \| moderate	10.507 \| good	52.752 \| good	47.269 \| good	0.75 \| good	10.83 \| good	0.266 \| good
2026-07-22T22:00:00.000Z	51 \| moderate	9.312 \| good	54.965 \| good	50.673 \| good	0.709 \| good	11.933 \| good	0.251 \| good
2026-07-22T23:00:00.000Z	64 \| moderate	9.738 \| good	38.241 \| good	58.776 \| fine	0.563 \| good	10.683 \| good	0.279 \| good
2026-07-23T00:00:00.000Z	71 \| moderate	9.926 \| good	41.33 \| good	61.023 \| fine	0.635 \| good	9.565 \| good	0.251 \| good
2026-07-23T01:00:00.000Z	43 \| good	7.324 \| good	26.086 \| good	46.234 \| good	0.71 \| good	7.977 \| good	0.251 \| good
2026-07-23T02:00:00.000Z	44 \| good	8.105 \| good	28.449 \| good	36.509 \| good	0.726 \| good	7.837 \| good	0.279 \| good
2026-07-23T03:00:00.000Z	49 \| good	8.728 \| good	38.626 \| good	27.946 \| good	1.193 \| good	5.827 \| good	0.113 \| good
2026-07-23T04:00:00.000Z	49 \| good	8.849 \| good	36.705 \| good	27.941 \| good	0.638 \| good	10.63 \| good	0.279 \| good
2026-07-23T05:00:00.000Z	44 \| good	7.977 \| good	35.648 \| good	22.682 \| good	0.758 \| good	9.996 \| good	0.279 \| good
2026-07-23T06:00:00.000Z	49 \| good	8.571 \| good	29.337 \| good	23.727 \| good	0.61 \| good	8.926 \| good	0.308 \| good
2026-07-23T07:00:00.000Z	33 \| good	6.228 \| good	30.052 \| good	23.736 \| good	0.594 \| good	8.186 \| good	0.308 \| good
2026-07-23T08:00:00.000Z	38 \| good	6.815 \| good	27.763 \| good	16.575 \| good	0.566 \| good	11.259 \| good	0.294 \| good
2026-07-23T09:00:00.000Z	38 \| good	6.732 \| good	29.062 \| good	12.198 \| good	0.634 \| good	12.214 \| good	0.237 \| good
2026-07-23T10:00:00.000Z	33 \| good	5.772 \| good	25.771 \| good	12.243 \| good	0.586 \| good	12.789 \| good	0.255 \| good
2026-07-23T11:00:00.000Z	49 \| good	8.535 \| good	47.401 \| good	10.575 \| good	0.771 \| good	15.421 \| good	0.237 \| good
2026-07-23T12:00:00.000Z	49 \| good	9.185 \| good	50.135 \| good	10.506 \| good	0.593 \| good	14.867 \| good	0.277 \| good
2026-07-23T13:00:00.000Z	44 \| good	8.181 \| good	21.397 \| good	9.192 \| good	0.596 \| good	18.974 \| good	0.277 \| good
2026-07-23T14:00:00.000Z	49 \| good	9.043 \| good	26.274 \| good	12.526 \| good	0.688 \| good	15.829 \| good	0.433 \| good
2026-07-23T15:00:00.000Z	49 \| good	9.176 \| good	39.762 \| good	15.97 \| good	0.883 \| good	15.366 \| good	0.459 \| good
2026-07-23T16:00:00.000Z	56 \| moderate	12.441 \| fine	39.331 \| good	18.451 \| good	0.917 \| good	14.895 \| good	0.415 \| good
2026-07-23T17:00:00.000Z	56 \| moderate	11.605 \| good	49.752 \| good	27.202 \| good	0.823 \| good	12.252 \| good	0.348 \| good
2026-07-23T18:00:00.000Z	96 \| moderate	13.598 \| fine	144.846 \| fine	44.614 \| good	0.868 \| good	19.662 \| good	0.352 \| good
2026-07-23T19:00:00.000Z	63 \| moderate	12.778 \| fine	79.108 \| fine	50.81 \| good	0.79 \| good	11.986 \| good	0.325 \| good
2026-07-23T20:00:00.000Z	97 \| moderate	13.995 \| fine	94.19 \| fine	68.563 \| fine	0.767 \| good	10.609 \| good	0.308 \| good
2026-07-23T21:00:00.000Z	101 \| sensitive	15.146 \| fine	81.666 \| fine	71.081 \| moderate	0.83 \| good	11.402 \| good	0.288 \| good
2026-07-23T22:00:00.000Z	108 \| sensitive	14.64 \| fine	53.974 \| good	72.613 \| moderate	0.99 \| good	10.493 \| good	0.29 \| good
2026-07-23T23:00:00.000Z	115 \| sensitive	14.327 \| fine	62.834 \| fine	74.516 \| moderate	1.01 \| good	8.185 \| good	0.294 \| good
2026-07-23T23:00:00.000Z	108 \| sensitive	14.64 \| fine	53.974 \| good	72.613 \| moderate	0.99 \| good	10.493 \| good	0.29 \| good
2026-07-24T00:00:00.000Z	90 \| moderate	14.715 \| fine	66.067 \| fine	67.432 \| fine	1.35 \| good	3.652 \| good	0.127 \| good
2026-07-24T01:00:00.000Z	56 \| moderate	12.494 \| fine	56.163 \| fine	53.794 \| good	1.388 \| good	4.26 \| good	0.128 \| good
2026-07-24T02:00:00.000Z	58 \| moderate	12.979 \| fine	58.391 \| fine	42.745 \| good	1.429 \| good	5.694 \| good	0.131 \| good
2026-07-24T03:00:00.000Z	56 \| moderate	12.043 \| good	54.085 \| good	33.348 \| good	1.442 \| good	7.824 \| good	0.133 \| good
2026-07-24T04:00:00.000Z	56 \| moderate	12.105 \| fine	54.191 \| good	26.701 \| good	1.447 \| good	9.427 \| good	0.135 \| good
2026-07-24T05:00:00.000Z	60 \| moderate	13.721 \| fine	62.161 \| fine	22.283 \| good	1.424 \| good	10.677 \| good	0.137 \| good
2026-07-24T06:00:00.000Z	60 \| moderate	13.844 \| fine	62.317 \| fine	19.663 \| good	1.387 \| good	12.254 \| good	0.14 \| good
2026-07-24T07:00:00.000Z	58 \| moderate	13.168 \| fine	58.841 \| fine	19.354 \| good	1.326 \| good	13.95 \| good	0.146 \| good
2026-07-24T08:00:00.000Z	60 \| moderate	14.063 \| fine	62.555 \| fine	16.844 \| good	1.241 \| good	14.229 \| good	0.148 \| good
2026-07-24T09:00:00.000Z	60 \| moderate	13.999 \| fine	62.727 \| fine	15.021 \| good	1.183 \| good	14.692 \| good	0.15 \| good
2026-07-24T10:00:00.000Z	62 \| moderate	14.617 \| fine	64.737 \| fine	10.14 \| good	1.165 \| good	15.682 \| good	0.155 \| good
2026-07-24T11:00:00.000Z	60 \| moderate	13.765 \| fine	62.132 \| fine	9.487 \| good	1.174 \| good	16.89 \| good	0.16 \| good
2026-07-24T12:00:00.000Z	60 \| moderate	14.48 \| fine	64.4 \| fine	8.171 \| good	1.178 \| good	17.789 \| good	0.165 \| good
2026-07-24T13:00:00.000Z	62 \| moderate	15.435 \| fine	68.283 \| fine	7.701 \| good	1.184 \| good	18.144 \| good	0.17 \| good
2026-07-24T14:00:00.000Z	66 \| moderate	17.358 \| fine	77.441 \| fine	11.589 \| good	1.169 \| good	15.684 \| good	0.176 \| good
2026-07-24T15:00:00.000Z	69 \| moderate	19.466 \| fine	85.767 \| fine	18.232 \| good	1.132 \| good	9.813 \| good	0.145 \| good
2026-07-24T16:00:00.000Z	73 \| moderate	21.475 \| fine	94.242 \| fine	29.851 \| good	1.082 \| good	7.654 \| good	0.137 \| good
2026-07-24T17:00:00.000Z	81 \| moderate	24.879 \| fine	108.238 \| fine	47.801 \| good	1.101 \| good	6.537 \| good	0.135 \| good
2026-07-24T18:00:00.000Z	97 \| moderate	25.675 \| fine	111.701 \| fine	69.406 \| fine	1.12 \| good	5.642 \| good	0.133 \| good
2026-07-24T19:00:00.000Z	133 \| sensitive	22.388 \| fine	97.849 \| fine	79.808 \| moderate	1.119 \| good	4.684 \| good	0.131 \| good
2026-07-24T20:00:00.000Z	119 \| sensitive	16.355 \| fine	72.191 \| fine	76.183 \| moderate	1.103 \| good	3.906 \| good	0.127 \| good
2026-07-24T21:00:00.000Z	101 \| sensitive	11.637 \| good	51.584 \| good	70.878 \| fine	1.099 \| good	3.448 \| good	0.123 \| good
2026-07-24T22:00:00.000Z	90 \| moderate	12.148 \| fine	54.822 \| good	67.151 \| fine	1.111 \| good	3.17 \| good	0.121 \| good
2026-07-24T23:00:00.000Z	77 \| moderate	10.897 \| good	48.034 \| good	62.664 \| fine	1.123 \| good	3.044 \| good	0.118 \| good
2026-07-25T00:00:00.000Z	58 \| moderate	11.156 \| good	49.014 \| good	57.416 \| fine	1.134 \| good	3.198 \| good	0.117 \| good
2026-07-25T01:00:00.000Z	54 \| moderate	11.487 \| good	50.915 \| good	48.793 \| good	1.153 \| good	3.675 \| good	0.116 \| good
2026-07-25T02:00:00.000Z	52 \| moderate	10.484 \| good	46.689 \| good	39.278 \| good	1.171 \| good	4.793 \| good	0.116 \| good
2026-07-25T03:00:00.000Z	56 \| moderate	11.687 \| good	51.319 \| good	31.001 \| good	1.197 \| good	6.575 \| good	0.118 \| good
2026-07-25T04:00:00.000Z	54 \| moderate	10.829 \| good	47.814 \| good	25.437 \| good	1.216 \| good	8.007 \| good	0.12 \| good
2026-07-25T05:00:00.000Z	56 \| moderate	11.663 \| good	51.159 \| good	21.434 \| good	1.218 \| good	9.213 \| good	0.122 \| good
2026-07-25T06:00:00.000Z	54 \| moderate	11.143 \| good	49.554 \| good	19.569 \| good	1.209 \| good	10.813 \| good	0.126 \| good
2026-07-25T07:00:00.000Z	54 \| moderate	10.727 \| good	47.315 \| good	18.404 \| good	1.179 \| good	12.386 \| good	0.131 \| good
2026-07-25T08:00:00.000Z	56 \| moderate	11.925 \| good	53.492 \| good	15.225 \| good	1.14 \| good	13.405 \| good	0.137 \| good
2026-07-25T09:00:00.000Z	56 \| moderate	11.758 \| good	51.853 \| good	12.789 \| good	1.129 \| good	14.853 \| good	0.142 \| good
2026-07-25T10:00:00.000Z	56 \| moderate	11.575 \| good	51.304 \| good	10.982 \| good	1.144 \| good	16.147 \| good	0.148 \| good
2026-07-25T11:00:00.000Z	52 \| moderate	10.175 \| good	44.789 \| good	11.216 \| good	1.15 \| good	17.492 \| good	0.154 \| good
2026-07-25T12:00:00.000Z	54 \| moderate	10.751 \| good	47.464 \| good	9.151 \| good	1.146 \| good	19.622 \| good	0.162 \| good
2026-07-25T13:00:00.000Z	56 \| moderate	11.525 \| good	50.644 \| good	8.48 \| good	1.149 \| good	20.691 \| good	0.172 \| good
2026-07-25T14:00:00.000Z	62 \| moderate	14.857 \| fine	66.193 \| fine	10.705 \| good	1.167 \| good	17.802 \| good	0.181 \| good
2026-07-25T15:00:00.000Z	64 \| moderate	16.329 \| fine	72.262 \| fine	16.485 \| good	1.228 \| good	11.336 \| good	0.147 \| good
2026-07-25T16:00:00.000Z	66 \| moderate	17.488 \| fine	77.78 \| fine	27.645 \| good	1.251 \| good	8.71 \| good	0.135 \| good
2026-07-25T17:00:00.000Z	71 \| moderate	20.057 \| fine	88.071 \| fine	42.385 \| good	1.276 \| good	7.431 \| good	0.132 \| good
2026-07-25T18:00:00.000Z	71 \| moderate	20.011 \| fine	88.569 \| fine	54.903 \| good	1.267 \| good	6.273 \| good	0.129 \| good
2026-07-25T19:00:00.000Z	84 \| moderate	16.313 \| fine	72.315 \| fine	65.013 \| fine	1.246 \| good	5.1 \| good	0.127 \| good
2026-07-25T20:00:00.000Z	101 \| sensitive	15.961 \| fine	70.444 \| fine	71.404 \| moderate	1.222 \| good	4.223 \| good	0.124 \| good
2026-07-25T21:00:00.000Z	129 \| sensitive	14.587 \| fine	64.712 \| fine	79.105 \| moderate	1.23 \| good	3.676 \| good	0.121 \| good
2026-07-25T22:00:00.000Z	119 \| sensitive	14.465 \| fine	65.115 \| fine	76.48 \| moderate	1.266 \| good	3.279 \| good	0.119 \| good
2026-07-25T23:00:00.000Z	119 \| sensitive	11.766 \| good	52.275 \| good	75.659 \| moderate	1.313 \| good	3.036 \| good	0.118 \| 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

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Chino Hills, California

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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?