What is the current concentration of PM10 in San Dimas, California?

The current PM10 concentration at San Dimas, California is 25.903 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in San Dimas, California?

The current sulfur dioxide (SO2) concentration at San Dimas, California is 0.509 ppb.

What is the current concentration of ozone (O3) in San Dimas, California?

The current ozone (O3) concentration at San Dimas, California is 16.931 ppm.

What is the current concentration of nitrogen dioxide (NO2) in San Dimas, California?

The current nitrogen dioxide (NO2) concentration at San Dimas, California is 11.564 ppb.

San Dimas, California live air quality index now

Name: Live air pollution levels in San Dimas, California today
Creator: Ambee

Stay updated with real-time air quality in San Dimas, 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

San Dimas, California

Last updated: ... (Local time)

Major air pollutants in San Dimas, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

6.40 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

25.90 μg/m³

155

255

425

605+

Ozone (O₃)

16.93 ppb

201

201+

Sulfur Dioxide (SO₂)

0.51 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

11.56 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.27 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

San Dimas, California

Get Live Pollen Counts

San Dimas, California

Scroll To Air Quality Map

Track live San Dimas, California air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-09-07T16:00:00.000Z	52 \| moderate	9.533 \| good	30.068 \| good	24.972 \| good	0.292 \| good	17.334 \| good	0.414 \| good
2025-09-07T17:00:00.000Z	64 \| moderate	15.832 \| fine	47.321 \| good	34.579 \| good	0.279 \| good	15.508 \| good	0.387 \| good
2025-09-07T18:00:00.000Z	58 \| moderate	12.811 \| fine	30.359 \| good	42.927 \| good	0.343 \| good	11.917 \| good	0.318 \| good
2025-09-07T19:00:00.000Z	49 \| good	8.726 \| good	31.018 \| good	53.226 \| good	0.397 \| good	7.726 \| good	0.231 \| good
2025-09-07T20:00:00.000Z	58 \| moderate	9.022 \| good	25.624 \| good	57.095 \| fine	0.303 \| good	6.379 \| good	0.208 \| good
2025-09-07T21:00:00.000Z	77 \| moderate	8.441 \| good	31.469 \| good	62.802 \| fine	0.335 \| good	6.409 \| good	0.208 \| good
2025-09-07T22:00:00.000Z	77 \| moderate	7.344 \| good	22.213 \| good	62.643 \| fine	2.011 \| good	5.057 \| good	0.198 \| good
2025-09-07T23:00:00.000Z	93 \| moderate	5.74 \| good	17.335 \| good	67.925 \| fine	1.204 \| good	6.061 \| good	0.208 \| good
2025-09-08T00:00:00.000Z	90 \| moderate	6.586 \| good	22.378 \| good	67.229 \| fine	1.06 \| good	7.065 \| good	0.201 \| good
2025-09-08T01:00:00.000Z	61 \| moderate	6.237 \| good	27.529 \| good	58.354 \| fine	0.794 \| good	6.969 \| good	0.189 \| good
2025-09-08T02:00:00.000Z	50 \| good	5.981 \| good	19.8 \| good	53.661 \| good	0.644 \| good	8.793 \| good	0.221 \| good
2025-09-08T03:00:00.000Z	44 \| good	7.943 \| good	26.906 \| good	46.886 \| good	1.192 \| good	13.017 \| good	0.272 \| good
2025-09-08T04:00:00.000Z	39 \| good	6.715 \| good	21.981 \| good	41.599 \| good	0.714 \| good	14.372 \| good	0.273 \| good
2025-09-08T05:00:00.000Z	38 \| good	6.667 \| good	21.487 \| good	34.78 \| good	0.679 \| good	17.773 \| good	0.337 \| good
2025-09-08T06:00:00.000Z	33 \| good	6.427 \| good	22.256 \| good	31.194 \| good	0.399 \| good	15.989 \| good	0.305 \| good
2025-09-08T07:00:00.000Z	38 \| good	6.672 \| good	24.639 \| good	24.306 \| good	0.359 \| good	16.076 \| good	0.289 \| good
2025-09-08T08:00:00.000Z	33 \| good	5.833 \| good	27.105 \| good	19.789 \| good	0.244 \| good	20.353 \| good	0.34 \| good
2025-09-08T09:00:00.000Z	33 \| good	6.08 \| good	21.491 \| good	15.869 \| good	0.177 \| good	21.275 \| good	0.325 \| good
2025-09-08T10:00:00.000Z	33 \| good	6.281 \| good	21.593 \| good	13.602 \| good	0.216 \| good	17.261 \| good	0.318 \| good
2025-09-08T11:00:00.000Z	33 \| good	6.008 \| good	20.627 \| good	9.774 \| good	0.262 \| good	20.271 \| good	0.315 \| good
2025-09-08T12:00:00.000Z	38 \| good	6.588 \| good	27.768 \| good	9.208 \| good	0.383 \| good	21.061 \| good	0.331 \| good
2025-09-08T13:00:00.000Z	38 \| good	6.828 \| good	21.574 \| good	9.737 \| good	0.26 \| good	22.507 \| good	0.427 \| good
2025-09-08T14:00:00.000Z	44 \| good	8.202 \| good	34.333 \| good	12.115 \| good	0.301 \| good	23.674 \| good	0.467 \| good
2025-09-08T15:00:00.000Z	44 \| good	7.863 \| good	37.166 \| good	14.632 \| good	0.549 \| good	22.824 \| good	0.491 \| good
2025-09-08T16:00:00.000Z	40 \| good	7.127 \| good	42.503 \| good	20.545 \| good	0.68 \| good	24.86 \| good	0.461 \| good
2025-09-08T17:00:00.000Z	49 \| good	8.307 \| good	52.71 \| good	29.351 \| good	0.643 \| good	21.955 \| good	0.369 \| good
2025-09-08T18:00:00.000Z	33 \| good	6.401 \| good	31.383 \| good	36.056 \| good	0.641 \| good	14.449 \| good	0.29 \| good
2025-09-08T19:00:00.000Z	44 \| good	7.775 \| good	31.555 \| good	43.523 \| good	0.533 \| good	12.956 \| good	0.202 \| good
2025-09-08T20:00:00.000Z	44 \| good	6.962 \| good	30.944 \| good	46.912 \| good	0.455 \| good	9.076 \| good	0.201 \| good
2025-09-08T21:00:00.000Z	48 \| good	5.958 \| good	27.545 \| good	52.494 \| good	0.313 \| good	8.996 \| good	0.201 \| good
2025-09-08T22:00:00.000Z	51 \| moderate	5.357 \| good	27.895 \| good	55.336 \| fine	0.278 \| good	8.297 \| good	0.182 \| good
2025-09-08T23:00:00.000Z	61 \| moderate	5.691 \| good	23.873 \| good	57.7 \| fine	0.591 \| good	9.179 \| good	0.201 \| good
2025-09-09T00:00:00.000Z	46 \| good	6.054 \| good	27.088 \| good	49.744 \| good	4.342 \| good	7.639 \| good	0.146 \| good
2025-09-09T01:00:00.000Z	31 \| good	4.488 \| good	19.682 \| good	33.855 \| good	4.445 \| good	10.72 \| good	0.153 \| good
2025-09-09T02:00:00.000Z	26 \| good	2.97 \| good	12.055 \| good	27.875 \| good	4.029 \| good	11.99 \| good	0.152 \| good
2025-09-09T03:00:00.000Z	23 \| good	3.719 \| good	16.061 \| good	24.586 \| good	4.133 \| good	14.901 \| good	0.16 \| good
2025-09-09T04:00:00.000Z	22 \| good	4.469 \| good	19.163 \| good	17.268 \| good	4.683 \| good	19.002 \| good	0.177 \| good
2025-09-09T05:00:00.000Z	27 \| good	4.785 \| good	20.839 \| good	14.728 \| good	4.713 \| good	21.123 \| good	0.186 \| good
2025-09-09T06:00:00.000Z	33 \| good	5.748 \| good	25.095 \| good	12.987 \| good	4.744 \| good	23.244 \| good	0.195 \| good
2025-09-09T07:00:00.000Z	33 \| good	5.789 \| good	25.26 \| good	12.92 \| good	4.32 \| good	21.376 \| good	0.192 \| good
2025-09-09T08:00:00.000Z	38 \| good	6.967 \| good	18.344 \| good	11.908 \| good	0.208 \| good	14.539 \| good	0.266 \| good
2025-09-09T09:00:00.000Z	27 \| good	4.996 \| good	18.076 \| good	9.91 \| good	0.208 \| good	15.278 \| good	0.244 \| good
2025-09-09T10:00:00.000Z	22 \| good	4.01 \| good	16.587 \| good	10.203 \| good	0.182 \| good	15.278 \| good	0.244 \| good
2025-09-09T11:00:00.000Z	38 \| good	7.257 \| good	23.103 \| good	5.818 \| good	0.244 \| good	16.026 \| good	0.237 \| good
2025-09-09T12:00:00.000Z	27 \| good	4.722 \| good	18.731 \| good	8.995 \| good	0.238 \| good	15.615 \| good	0.227 \| good
2025-09-09T13:00:00.000Z	27 \| good	4.759 \| good	14.064 \| good	7.882 \| good	0.232 \| good	18.159 \| good	0.28 \| good
2025-09-09T14:00:00.000Z	33 \| good	5.98 \| good	27.413 \| good	10.912 \| good	0.311 \| good	14.514 \| good	0.263 \| good
2025-09-09T15:00:00.000Z	33 \| good	6.294 \| good	26.405 \| good	15.083 \| good	0.499 \| good	11.634 \| good	0.256 \| good
2025-09-09T15:00:00.000Z	33 \| good	6.402 \| good	25.903 \| good	16.931 \| good	0.509 \| good	11.564 \| good	0.267 \| good
2025-09-09T16:00:00.000Z	52 \| moderate	9.719 \| good	43.144 \| good	20.656 \| good	4.715 \| good	13.489 \| good	0.195 \| good
2025-09-09T17:00:00.000Z	54 \| moderate	11 \| good	48.89 \| good	29.802 \| good	4.064 \| good	10.384 \| good	0.171 \| good
2025-09-09T18:00:00.000Z	49 \| good	9.154 \| good	40.888 \| good	39.352 \| good	3.412 \| good	7.279 \| good	0.147 \| good
2025-09-09T19:00:00.000Z	44 \| good	8.459 \| good	36.894 \| good	47.624 \| good	3.249 \| good	6.238 \| good	0.142 \| good
2025-09-09T20:00:00.000Z	54 \| moderate	6.657 \| good	29.76 \| good	56.173 \| fine	3.085 \| good	5.197 \| good	0.137 \| good
2025-09-09T21:00:00.000Z	54 \| moderate	6.059 \| good	26.852 \| good	56.071 \| fine	2.922 \| good	4.156 \| good	0.132 \| good
2025-09-09T22:00:00.000Z	61 \| moderate	6.555 \| good	29.151 \| good	58.121 \| fine	3.059 \| good	4.471 \| good	0.133 \| good
2025-09-09T23:00:00.000Z	54 \| moderate	8.21 \| good	35.935 \| good	55.587 \| fine	3.196 \| good	4.786 \| good	0.133 \| good
2025-09-10T00:00:00.000Z	44 \| good	7.43 \| good	32.755 \| good	46.97 \| good	3.333 \| good	5.101 \| good	0.134 \| good
2025-09-10T01:00:00.000Z	35 \| good	5.052 \| good	21.837 \| good	37.988 \| good	3.506 \| good	7.388 \| good	0.139 \| good
2025-09-10T02:00:00.000Z	25 \| good	3.474 \| good	15.383 \| good	27.445 \| good	3.678 \| good	9.675 \| good	0.143 \| good
2025-09-10T03:00:00.000Z	22 \| good	2.89 \| good	12.184 \| good	24.103 \| good	3.851 \| good	11.962 \| good	0.148 \| good
2025-09-10T04:00:00.000Z	20 \| good	3.023 \| good	12.388 \| good	21.543 \| good	3.977 \| good	13.411 \| good	0.151 \| good
2025-09-10T05:00:00.000Z	19 \| good	3.418 \| good	15.161 \| good	19.869 \| good	4.102 \| good	14.86 \| good	0.153 \| good
2025-09-10T06:00:00.000Z	16 \| good	2.531 \| good	9.995 \| good	17.045 \| good	4.228 \| good	16.309 \| good	0.155 \| good
2025-09-10T07:00:00.000Z	16 \| good	2.665 \| good	10.992 \| good	15.387 \| good	4.201 \| good	15.957 \| good	0.153 \| good
2025-09-10T08:00:00.000Z	22 \| good	3.523 \| good	15.814 \| good	14.605 \| good	4.174 \| good	15.605 \| good	0.15 \| good
2025-09-10T09:00:00.000Z	16 \| good	3.283 \| good	14.087 \| good	15.137 \| good	4.147 \| good	15.253 \| good	0.148 \| good
2025-09-10T10:00:00.000Z	17 \| good	2.283 \| good	9.352 \| good	17.769 \| good	3.81 \| good	13.624 \| good	0.142 \| good
2025-09-10T11:00:00.000Z	17 \| good	2.321 \| good	9.789 \| good	18.348 \| good	3.474 \| good	11.995 \| good	0.135 \| good
2025-09-10T12:00:00.000Z	22 \| good	3.724 \| good	16.158 \| good	15.675 \| good	3.137 \| good	10.366 \| good	0.129 \| good
2025-09-10T13:00:00.000Z	12 \| good	2.337 \| good	9.834 \| good	12.783 \| good	2.813 \| good	9.157 \| good	0.128 \| good
2025-09-10T14:00:00.000Z	17 \| good	2.879 \| good	11.713 \| good	17.693 \| good	2.488 \| good	7.947 \| good	0.127 \| good
2025-09-10T15:00:00.000Z	22 \| good	4.151 \| good	18.255 \| good	22.88 \| good	2.164 \| good	6.738 \| good	0.126 \| good
2025-09-10T16:00:00.000Z	27 \| good	4.921 \| good	21.246 \| good	29.115 \| good	1.901 \| good	5.613 \| good	0.122 \| good
2025-09-10T17:00:00.000Z	33 \| good	6.117 \| good	27.405 \| good	35.152 \| good	1.639 \| good	4.487 \| good	0.118 \| good
2025-09-10T18:00:00.000Z	35 \| good	4.17 \| good	18.36 \| good	37.841 \| good	1.376 \| good	3.362 \| good	0.115 \| good
2025-09-10T19:00:00.000Z	39 \| good	3.815 \| good	16.777 \| good	41.832 \| good	1.435 \| good	3.088 \| good	0.114 \| good
2025-09-10T20:00:00.000Z	44 \| good	3.27 \| good	14.144 \| good	47.241 \| good	1.493 \| good	2.813 \| good	0.114 \| good
2025-09-10T21:00:00.000Z	43 \| good	3.225 \| good	13.981 \| good	46.262 \| good	1.551 \| good	2.539 \| good	0.114 \| good
2025-09-10T22:00:00.000Z	46 \| good	3.49 \| good	15.73 \| good	49.518 \| good	1.796 \| good	3.005 \| good	0.116 \| good
2025-09-10T23:00:00.000Z	46 \| good	4.536 \| good	19.83 \| good	50.473 \| good	2.042 \| good	3.47 \| good	0.118 \| good
2025-09-11T00:00:00.000Z	44 \| good	6.942 \| good	30.403 \| good	47.224 \| good	2.288 \| good	3.936 \| good	0.12 \| good
2025-09-11T01:00:00.000Z	39 \| good	7.246 \| good	31.876 \| good	42.074 \| good	2.619 \| good	6.135 \| good	0.125 \| good
2025-09-11T02:00:00.000Z	33 \| good	6.348 \| good	28.141 \| good	35.134 \| good	2.949 \| good	8.334 \| good	0.131 \| good
2025-09-11T03:00:00.000Z	33 \| good	5.795 \| good	25.157 \| good	31.329 \| good	3.279 \| good	10.533 \| good	0.137 \| good
2025-09-11T04:00:00.000Z	27 \| good	4.973 \| good	21.341 \| good	26.392 \| good	3.526 \| good	12.169 \| good	0.141 \| good
2025-09-11T05:00:00.000Z	22 \| good	4.112 \| good	18.076 \| good	24.429 \| good	3.773 \| good	13.804 \| good	0.145 \| good
2025-09-11T06:00:00.000Z	22 \| good	3.515 \| good	15.594 \| good	19.932 \| good	4.02 \| good	15.44 \| good	0.149 \| good
2025-09-11T07:00:00.000Z	18 \| good	3.372 \| good	14.682 \| good	18.857 \| good	4.049 \| good	16.398 \| good	0.152 \| good
2025-09-11T08:00:00.000Z	27 \| good	4.878 \| good	21.029 \| good	18.434 \| good	4.079 \| good	17.356 \| good	0.156 \| good
2025-09-11T09:00:00.000Z	27 \| good	4.671 \| good	20.16 \| good	20.657 \| good	4.108 \| good	18.315 \| good	0.159 \| good
2025-09-11T10:00:00.000Z	22 \| good	3.838 \| good	16.847 \| good	19.484 \| good	4.255 \| good	17.548 \| good	0.155 \| good
2025-09-11T11:00:00.000Z	22 \| good	4.276 \| good	18.754 \| good	17.092 \| good	4.402 \| good	16.781 \| good	0.151 \| good
2025-09-11T12:00:00.000Z	33 \| good	6.321 \| good	27.968 \| good	13.921 \| good	4.55 \| good	16.014 \| good	0.147 \| good
2025-09-11T13:00:00.000Z	22 \| good	4.425 \| good	19.051 \| good	12.971 \| good	4.49 \| good	14.769 \| good	0.153 \| good
2025-09-11T14:00:00.000Z	16 \| good	3.4 \| good	15.077 \| good	16.128 \| good	4.43 \| good	13.525 \| good	0.159 \| good
2025-09-11T15:00:00.000Z	27 \| good	5.071 \| good	22.404 \| good	18.512 \| good	4.37 \| good	12.28 \| good	0.165 \| good

San Dimas

Get reliable air quality data to drive your business

San Dimas, California air quality map: Track AQI near you

0.33ppm

How accurate is California, USA air quality data?

Air quality data and pollutant measurements for California, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.

Source: Ambee Data Sources

Air quality levels in US

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

View Polluted Cities

Check live rankings of places in the USA with the cleanest air.

View Clean Cities

Frequently asked questions

How often is the air quality data for San Dimas, California updated?

The air quality for San Dimas, California is updated every hour.

When was the worst air quality at San Dimas, California in the last 24 hrs?

The worst air quality in San Dimas, California in the last 24 hours was observed at 11:00:00 on 2025-09-08.

When was the best air quality at San Dimas, California in the last 24 hrs?

In the last 24 hrs, the best air quality in San Dimas, California was observed at 10:00:00 on 2025-09-09.

What is the current air quality in San Dimas, California?

The current air quality in San Dimas, California is 33, categorized as Good based on real-time data.

What pollutant is the most common in San Dimas, California?

The most common pollutant in San Dimas, California is PM2.5.

What should I do if the air quality in San Dimas, California is poor?

If the air quality in San Dimas, California is poor, consider staying indoors and wearing a mask to protect yourself.

What is the current concentration of PM_2.5 in San Dimas, California?

The current PM_2.5 concentration at San Dimas, California is 6.402 μg/m³.

What is the current concentration of PM₁₀ in San Dimas, California?

The current PM₁₀ concentration at San Dimas, California is 25.903 μg/m³.

What is the current concentration of carbon monoxide (CO) in San Dimas, California?

The current carbon monoxide (CO) concentration at San Dimas, California is 0.267 ppm.

What is the current concentration of sulfur dioxide (SO₂) in San Dimas, California?

The current sulfur dioxide (SO₂) concentration at San Dimas, California is 0.509 ppb.

What is the current concentration of ozone (O₃) in San Dimas, California?

The current ozone (O₃) concentration at San Dimas, California is 16.931 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in San Dimas, California?

The current nitrogen dioxide (NO₂) concentration at San Dimas, California is 11.564 ppb.

Certified

APIs

Refund Policy

Historical Climate Data

Terms & Conditions

Refund Policy

Terms & Conditions

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-09-07T16:00:00.000Z	52 \| moderate	9.533 \| good	30.068 \| good	24.972 \| good	0.292 \| good	17.334 \| good	0.414 \| good
2025-09-07T17:00:00.000Z	64 \| moderate	15.832 \| fine	47.321 \| good	34.579 \| good	0.279 \| good	15.508 \| good	0.387 \| good
2025-09-07T18:00:00.000Z	58 \| moderate	12.811 \| fine	30.359 \| good	42.927 \| good	0.343 \| good	11.917 \| good	0.318 \| good
2025-09-07T19:00:00.000Z	49 \| good	8.726 \| good	31.018 \| good	53.226 \| good	0.397 \| good	7.726 \| good	0.231 \| good
2025-09-07T20:00:00.000Z	58 \| moderate	9.022 \| good	25.624 \| good	57.095 \| fine	0.303 \| good	6.379 \| good	0.208 \| good
2025-09-07T21:00:00.000Z	77 \| moderate	8.441 \| good	31.469 \| good	62.802 \| fine	0.335 \| good	6.409 \| good	0.208 \| good
2025-09-07T22:00:00.000Z	77 \| moderate	7.344 \| good	22.213 \| good	62.643 \| fine	2.011 \| good	5.057 \| good	0.198 \| good
2025-09-07T23:00:00.000Z	93 \| moderate	5.74 \| good	17.335 \| good	67.925 \| fine	1.204 \| good	6.061 \| good	0.208 \| good
2025-09-08T00:00:00.000Z	90 \| moderate	6.586 \| good	22.378 \| good	67.229 \| fine	1.06 \| good	7.065 \| good	0.201 \| good
2025-09-08T01:00:00.000Z	61 \| moderate	6.237 \| good	27.529 \| good	58.354 \| fine	0.794 \| good	6.969 \| good	0.189 \| good
2025-09-08T02:00:00.000Z	50 \| good	5.981 \| good	19.8 \| good	53.661 \| good	0.644 \| good	8.793 \| good	0.221 \| good
2025-09-08T03:00:00.000Z	44 \| good	7.943 \| good	26.906 \| good	46.886 \| good	1.192 \| good	13.017 \| good	0.272 \| good
2025-09-08T04:00:00.000Z	39 \| good	6.715 \| good	21.981 \| good	41.599 \| good	0.714 \| good	14.372 \| good	0.273 \| good
2025-09-08T05:00:00.000Z	38 \| good	6.667 \| good	21.487 \| good	34.78 \| good	0.679 \| good	17.773 \| good	0.337 \| good
2025-09-08T06:00:00.000Z	33 \| good	6.427 \| good	22.256 \| good	31.194 \| good	0.399 \| good	15.989 \| good	0.305 \| good
2025-09-08T07:00:00.000Z	38 \| good	6.672 \| good	24.639 \| good	24.306 \| good	0.359 \| good	16.076 \| good	0.289 \| good
2025-09-08T08:00:00.000Z	33 \| good	5.833 \| good	27.105 \| good	19.789 \| good	0.244 \| good	20.353 \| good	0.34 \| good
2025-09-08T09:00:00.000Z	33 \| good	6.08 \| good	21.491 \| good	15.869 \| good	0.177 \| good	21.275 \| good	0.325 \| good
2025-09-08T10:00:00.000Z	33 \| good	6.281 \| good	21.593 \| good	13.602 \| good	0.216 \| good	17.261 \| good	0.318 \| good
2025-09-08T11:00:00.000Z	33 \| good	6.008 \| good	20.627 \| good	9.774 \| good	0.262 \| good	20.271 \| good	0.315 \| good
2025-09-08T12:00:00.000Z	38 \| good	6.588 \| good	27.768 \| good	9.208 \| good	0.383 \| good	21.061 \| good	0.331 \| good
2025-09-08T13:00:00.000Z	38 \| good	6.828 \| good	21.574 \| good	9.737 \| good	0.26 \| good	22.507 \| good	0.427 \| good
2025-09-08T14:00:00.000Z	44 \| good	8.202 \| good	34.333 \| good	12.115 \| good	0.301 \| good	23.674 \| good	0.467 \| good
2025-09-08T15:00:00.000Z	44 \| good	7.863 \| good	37.166 \| good	14.632 \| good	0.549 \| good	22.824 \| good	0.491 \| good
2025-09-08T16:00:00.000Z	40 \| good	7.127 \| good	42.503 \| good	20.545 \| good	0.68 \| good	24.86 \| good	0.461 \| good
2025-09-08T17:00:00.000Z	49 \| good	8.307 \| good	52.71 \| good	29.351 \| good	0.643 \| good	21.955 \| good	0.369 \| good
2025-09-08T18:00:00.000Z	33 \| good	6.401 \| good	31.383 \| good	36.056 \| good	0.641 \| good	14.449 \| good	0.29 \| good
2025-09-08T19:00:00.000Z	44 \| good	7.775 \| good	31.555 \| good	43.523 \| good	0.533 \| good	12.956 \| good	0.202 \| good
2025-09-08T20:00:00.000Z	44 \| good	6.962 \| good	30.944 \| good	46.912 \| good	0.455 \| good	9.076 \| good	0.201 \| good
2025-09-08T21:00:00.000Z	48 \| good	5.958 \| good	27.545 \| good	52.494 \| good	0.313 \| good	8.996 \| good	0.201 \| good
2025-09-08T22:00:00.000Z	51 \| moderate	5.357 \| good	27.895 \| good	55.336 \| fine	0.278 \| good	8.297 \| good	0.182 \| good
2025-09-08T23:00:00.000Z	61 \| moderate	5.691 \| good	23.873 \| good	57.7 \| fine	0.591 \| good	9.179 \| good	0.201 \| good
2025-09-09T00:00:00.000Z	46 \| good	6.054 \| good	27.088 \| good	49.744 \| good	4.342 \| good	7.639 \| good	0.146 \| good
2025-09-09T01:00:00.000Z	31 \| good	4.488 \| good	19.682 \| good	33.855 \| good	4.445 \| good	10.72 \| good	0.153 \| good
2025-09-09T02:00:00.000Z	26 \| good	2.97 \| good	12.055 \| good	27.875 \| good	4.029 \| good	11.99 \| good	0.152 \| good
2025-09-09T03:00:00.000Z	23 \| good	3.719 \| good	16.061 \| good	24.586 \| good	4.133 \| good	14.901 \| good	0.16 \| good
2025-09-09T04:00:00.000Z	22 \| good	4.469 \| good	19.163 \| good	17.268 \| good	4.683 \| good	19.002 \| good	0.177 \| good
2025-09-09T05:00:00.000Z	27 \| good	4.785 \| good	20.839 \| good	14.728 \| good	4.713 \| good	21.123 \| good	0.186 \| good
2025-09-09T06:00:00.000Z	33 \| good	5.748 \| good	25.095 \| good	12.987 \| good	4.744 \| good	23.244 \| good	0.195 \| good
2025-09-09T07:00:00.000Z	33 \| good	5.789 \| good	25.26 \| good	12.92 \| good	4.32 \| good	21.376 \| good	0.192 \| good
2025-09-09T08:00:00.000Z	38 \| good	6.967 \| good	18.344 \| good	11.908 \| good	0.208 \| good	14.539 \| good	0.266 \| good
2025-09-09T09:00:00.000Z	27 \| good	4.996 \| good	18.076 \| good	9.91 \| good	0.208 \| good	15.278 \| good	0.244 \| good
2025-09-09T10:00:00.000Z	22 \| good	4.01 \| good	16.587 \| good	10.203 \| good	0.182 \| good	15.278 \| good	0.244 \| good
2025-09-09T11:00:00.000Z	38 \| good	7.257 \| good	23.103 \| good	5.818 \| good	0.244 \| good	16.026 \| good	0.237 \| good
2025-09-09T12:00:00.000Z	27 \| good	4.722 \| good	18.731 \| good	8.995 \| good	0.238 \| good	15.615 \| good	0.227 \| good
2025-09-09T13:00:00.000Z	27 \| good	4.759 \| good	14.064 \| good	7.882 \| good	0.232 \| good	18.159 \| good	0.28 \| good
2025-09-09T14:00:00.000Z	33 \| good	5.98 \| good	27.413 \| good	10.912 \| good	0.311 \| good	14.514 \| good	0.263 \| good
2025-09-09T15:00:00.000Z	33 \| good	6.294 \| good	26.405 \| good	15.083 \| good	0.499 \| good	11.634 \| good	0.256 \| good
2025-09-09T15:00:00.000Z	33 \| good	6.402 \| good	25.903 \| good	16.931 \| good	0.509 \| good	11.564 \| good	0.267 \| good
2025-09-09T16:00:00.000Z	52 \| moderate	9.719 \| good	43.144 \| good	20.656 \| good	4.715 \| good	13.489 \| good	0.195 \| good
2025-09-09T17:00:00.000Z	54 \| moderate	11 \| good	48.89 \| good	29.802 \| good	4.064 \| good	10.384 \| good	0.171 \| good
2025-09-09T18:00:00.000Z	49 \| good	9.154 \| good	40.888 \| good	39.352 \| good	3.412 \| good	7.279 \| good	0.147 \| good
2025-09-09T19:00:00.000Z	44 \| good	8.459 \| good	36.894 \| good	47.624 \| good	3.249 \| good	6.238 \| good	0.142 \| good
2025-09-09T20:00:00.000Z	54 \| moderate	6.657 \| good	29.76 \| good	56.173 \| fine	3.085 \| good	5.197 \| good	0.137 \| good
2025-09-09T21:00:00.000Z	54 \| moderate	6.059 \| good	26.852 \| good	56.071 \| fine	2.922 \| good	4.156 \| good	0.132 \| good
2025-09-09T22:00:00.000Z	61 \| moderate	6.555 \| good	29.151 \| good	58.121 \| fine	3.059 \| good	4.471 \| good	0.133 \| good
2025-09-09T23:00:00.000Z	54 \| moderate	8.21 \| good	35.935 \| good	55.587 \| fine	3.196 \| good	4.786 \| good	0.133 \| good
2025-09-10T00:00:00.000Z	44 \| good	7.43 \| good	32.755 \| good	46.97 \| good	3.333 \| good	5.101 \| good	0.134 \| good
2025-09-10T01:00:00.000Z	35 \| good	5.052 \| good	21.837 \| good	37.988 \| good	3.506 \| good	7.388 \| good	0.139 \| good
2025-09-10T02:00:00.000Z	25 \| good	3.474 \| good	15.383 \| good	27.445 \| good	3.678 \| good	9.675 \| good	0.143 \| good
2025-09-10T03:00:00.000Z	22 \| good	2.89 \| good	12.184 \| good	24.103 \| good	3.851 \| good	11.962 \| good	0.148 \| good
2025-09-10T04:00:00.000Z	20 \| good	3.023 \| good	12.388 \| good	21.543 \| good	3.977 \| good	13.411 \| good	0.151 \| good
2025-09-10T05:00:00.000Z	19 \| good	3.418 \| good	15.161 \| good	19.869 \| good	4.102 \| good	14.86 \| good	0.153 \| good
2025-09-10T06:00:00.000Z	16 \| good	2.531 \| good	9.995 \| good	17.045 \| good	4.228 \| good	16.309 \| good	0.155 \| good
2025-09-10T07:00:00.000Z	16 \| good	2.665 \| good	10.992 \| good	15.387 \| good	4.201 \| good	15.957 \| good	0.153 \| good
2025-09-10T08:00:00.000Z	22 \| good	3.523 \| good	15.814 \| good	14.605 \| good	4.174 \| good	15.605 \| good	0.15 \| good
2025-09-10T09:00:00.000Z	16 \| good	3.283 \| good	14.087 \| good	15.137 \| good	4.147 \| good	15.253 \| good	0.148 \| good
2025-09-10T10:00:00.000Z	17 \| good	2.283 \| good	9.352 \| good	17.769 \| good	3.81 \| good	13.624 \| good	0.142 \| good
2025-09-10T11:00:00.000Z	17 \| good	2.321 \| good	9.789 \| good	18.348 \| good	3.474 \| good	11.995 \| good	0.135 \| good
2025-09-10T12:00:00.000Z	22 \| good	3.724 \| good	16.158 \| good	15.675 \| good	3.137 \| good	10.366 \| good	0.129 \| good
2025-09-10T13:00:00.000Z	12 \| good	2.337 \| good	9.834 \| good	12.783 \| good	2.813 \| good	9.157 \| good	0.128 \| good
2025-09-10T14:00:00.000Z	17 \| good	2.879 \| good	11.713 \| good	17.693 \| good	2.488 \| good	7.947 \| good	0.127 \| good
2025-09-10T15:00:00.000Z	22 \| good	4.151 \| good	18.255 \| good	22.88 \| good	2.164 \| good	6.738 \| good	0.126 \| good
2025-09-10T16:00:00.000Z	27 \| good	4.921 \| good	21.246 \| good	29.115 \| good	1.901 \| good	5.613 \| good	0.122 \| good
2025-09-10T17:00:00.000Z	33 \| good	6.117 \| good	27.405 \| good	35.152 \| good	1.639 \| good	4.487 \| good	0.118 \| good
2025-09-10T18:00:00.000Z	35 \| good	4.17 \| good	18.36 \| good	37.841 \| good	1.376 \| good	3.362 \| good	0.115 \| good
2025-09-10T19:00:00.000Z	39 \| good	3.815 \| good	16.777 \| good	41.832 \| good	1.435 \| good	3.088 \| good	0.114 \| good
2025-09-10T20:00:00.000Z	44 \| good	3.27 \| good	14.144 \| good	47.241 \| good	1.493 \| good	2.813 \| good	0.114 \| good
2025-09-10T21:00:00.000Z	43 \| good	3.225 \| good	13.981 \| good	46.262 \| good	1.551 \| good	2.539 \| good	0.114 \| good
2025-09-10T22:00:00.000Z	46 \| good	3.49 \| good	15.73 \| good	49.518 \| good	1.796 \| good	3.005 \| good	0.116 \| good
2025-09-10T23:00:00.000Z	46 \| good	4.536 \| good	19.83 \| good	50.473 \| good	2.042 \| good	3.47 \| good	0.118 \| good
2025-09-11T00:00:00.000Z	44 \| good	6.942 \| good	30.403 \| good	47.224 \| good	2.288 \| good	3.936 \| good	0.12 \| good
2025-09-11T01:00:00.000Z	39 \| good	7.246 \| good	31.876 \| good	42.074 \| good	2.619 \| good	6.135 \| good	0.125 \| good
2025-09-11T02:00:00.000Z	33 \| good	6.348 \| good	28.141 \| good	35.134 \| good	2.949 \| good	8.334 \| good	0.131 \| good
2025-09-11T03:00:00.000Z	33 \| good	5.795 \| good	25.157 \| good	31.329 \| good	3.279 \| good	10.533 \| good	0.137 \| good
2025-09-11T04:00:00.000Z	27 \| good	4.973 \| good	21.341 \| good	26.392 \| good	3.526 \| good	12.169 \| good	0.141 \| good
2025-09-11T05:00:00.000Z	22 \| good	4.112 \| good	18.076 \| good	24.429 \| good	3.773 \| good	13.804 \| good	0.145 \| good
2025-09-11T06:00:00.000Z	22 \| good	3.515 \| good	15.594 \| good	19.932 \| good	4.02 \| good	15.44 \| good	0.149 \| good
2025-09-11T07:00:00.000Z	18 \| good	3.372 \| good	14.682 \| good	18.857 \| good	4.049 \| good	16.398 \| good	0.152 \| good
2025-09-11T08:00:00.000Z	27 \| good	4.878 \| good	21.029 \| good	18.434 \| good	4.079 \| good	17.356 \| good	0.156 \| good
2025-09-11T09:00:00.000Z	27 \| good	4.671 \| good	20.16 \| good	20.657 \| good	4.108 \| good	18.315 \| good	0.159 \| good
2025-09-11T10:00:00.000Z	22 \| good	3.838 \| good	16.847 \| good	19.484 \| good	4.255 \| good	17.548 \| good	0.155 \| good
2025-09-11T11:00:00.000Z	22 \| good	4.276 \| good	18.754 \| good	17.092 \| good	4.402 \| good	16.781 \| good	0.151 \| good
2025-09-11T12:00:00.000Z	33 \| good	6.321 \| good	27.968 \| good	13.921 \| good	4.55 \| good	16.014 \| good	0.147 \| good
2025-09-11T13:00:00.000Z	22 \| good	4.425 \| good	19.051 \| good	12.971 \| good	4.49 \| good	14.769 \| good	0.153 \| good
2025-09-11T14:00:00.000Z	16 \| good	3.4 \| good	15.077 \| good	16.128 \| good	4.43 \| good	13.525 \| good	0.159 \| good
2025-09-11T15:00:00.000Z	27 \| good	5.071 \| good	22.404 \| good	18.512 \| good	4.37 \| good	12.28 \| good	0.165 \| good

San Dimas, California live air quality index now

Major air pollutants in San Dimas, California

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live San Dimas, California air quality forecast and history

Get reliable air quality data to drive your business

San Dimas, California air quality map: Track AQI near you

Air quality in nearby cities

La Verne, California

Glendora, California

Pomona, California

Citrus, California

Covina, California

Claremont, California

How accurate is California, USA air quality data?

Air quality levels in US

Frequently asked questions

How often is the air quality data for San Dimas, California updated?

When was the worst air quality at San Dimas, California in the last 24 hrs?

When was the best air quality at San Dimas, California in the last 24 hrs?

What is the current air quality in San Dimas, California?

What pollutant is the most common in San Dimas, California?

What should I do if the air quality in San Dimas, California is poor?

What is the current concentration of PM2.5 in San Dimas, California?

What is the current concentration of PM10 in San Dimas, California?

What is the current concentration of carbon monoxide (CO) in San Dimas, California?

What is the current concentration of sulfur dioxide (SO2) in San Dimas, California?

What is the current concentration of ozone (O3) in San Dimas, California?

What is the current concentration of nitrogen dioxide (NO2) in San Dimas, California?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What is the current concentration of PM_2.5 in San Dimas, California?

What is the current concentration of PM₁₀ in San Dimas, California?

What is the current concentration of sulfur dioxide (SO₂) in San Dimas, California?

What is the current concentration of ozone (O₃) in San Dimas, California?

What is the current concentration of nitrogen dioxide (NO₂) in San Dimas, California?