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

The current PM10 concentration at San Dimas, California is 44.142 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 0.353 ppb.

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

The current ozone (O3) concentration at San Dimas, California is 7.713 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 22.5 ppb.

San Dimas, California live air quality index now

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

The current PM2.5 concentration at San Dimas, California is 28.775 μg/m3.

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)

Moderate

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)

28.77 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

44.14 μg/m³

155

255

425

605+

Ozone (O₃)

7.71 ppb

201

201+

Sulfur Dioxide (SO₂)

0.35 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

22.50 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.48 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

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
2026-01-21T05:00:00.000Z	64 \| moderate	15.756 \| fine	56.113 \| fine	11.316 \| good	0.646 \| good	26.013 \| good	0.752 \| good
2026-01-21T06:00:00.000Z	58 \| moderate	13.219 \| fine	36.413 \| good	10.953 \| good	0.512 \| good	26.97 \| good	0.79 \| good
2026-01-21T07:00:00.000Z	56 \| moderate	11.901 \| good	55.085 \| fine	11.07 \| good	0.579 \| good	26.265 \| good	0.79 \| good
2026-01-21T08:00:00.000Z	52 \| moderate	9.605 \| good	38.106 \| good	9.566 \| good	0.659 \| good	21.938 \| good	0.543 \| good
2026-01-21T09:00:00.000Z	54 \| moderate	11.14 \| good	34.116 \| good	12.601 \| good	0.506 \| good	21.154 \| good	0.493 \| good
2026-01-21T10:00:00.000Z	44 \| good	7.702 \| good	25.007 \| good	15.162 \| good	0.463 \| good	29.638 \| good	0.461 \| good
2026-01-21T11:00:00.000Z	52 \| moderate	9.89 \| good	29.61 \| good	14.914 \| good	0.55 \| good	29.768 \| good	0.573 \| good
2026-01-21T12:00:00.000Z	49 \| good	9.155 \| good	16.284 \| good	11.877 \| good	0.524 \| good	23.552 \| good	0.483 \| good
2026-01-21T13:00:00.000Z	49 \| good	9.403 \| good	26.209 \| good	12.878 \| good	0.488 \| good	25.349 \| good	0.483 \| good
2026-01-21T14:00:00.000Z	24 \| good	4.42 \| good	16.101 \| good	16.725 \| good	0.78 \| good	25.308 \| good	0.549 \| good
2026-01-21T15:00:00.000Z	52 \| moderate	9.553 \| good	20.508 \| good	16.111 \| good	0.826 \| good	25.466 \| good	0.653 \| good
2026-01-21T16:00:00.000Z	52 \| moderate	10.308 \| good	34.323 \| good	7.213 \| good	0.881 \| good	21.524 \| good	0.773 \| good
2026-01-21T17:00:00.000Z	64 \| moderate	15.794 \| fine	58.342 \| fine	12.314 \| good	0.869 \| good	18.95 \| good	0.718 \| good
2026-01-21T18:00:00.000Z	69 \| moderate	18.921 \| fine	32.95 \| good	9.099 \| good	0.643 \| good	21.357 \| good	0.725 \| good
2026-01-21T19:00:00.000Z	75 \| moderate	21.648 \| fine	93.568 \| fine	10.111 \| good	0.755 \| good	34.218 \| good	0.752 \| good
2026-01-21T20:00:00.000Z	64 \| moderate	15.746 \| fine	49.001 \| good	13.609 \| good	0.696 \| good	42.552 \| good	0.635 \| good
2026-01-21T21:00:00.000Z	81 \| moderate	25.314 \| fine	48.832 \| good	16.663 \| good	0.525 \| good	34.644 \| good	0.673 \| good
2026-01-21T22:00:00.000Z	66 \| moderate	16.502 \| fine	54.265 \| good	14.017 \| good	0.55 \| good	35.415 \| good	0.636 \| good
2026-01-21T23:00:00.000Z	73 \| moderate	20.899 \| fine	79.405 \| fine	17.775 \| good	0.564 \| good	30.751 \| good	0.566 \| good
2026-01-22T00:00:00.000Z	77 \| moderate	23.177 \| fine	63.938 \| fine	18.006 \| good	0.641 \| good	24.345 \| good	0.566 \| good
2026-01-22T01:00:00.000Z	69 \| moderate	19.443 \| fine	43.555 \| good	20.499 \| good	0.448 \| good	23.324 \| good	0.581 \| good
2026-01-22T02:00:00.000Z	77 \| moderate	23.173 \| fine	46.681 \| good	16.044 \| good	0.426 \| good	34.22 \| good	0.676 \| good
2026-01-22T03:00:00.000Z	90 \| moderate	30.102 \| fine	57.95 \| fine	16.49 \| good	0.423 \| good	34.831 \| good	0.711 \| good
2026-01-22T04:00:00.000Z	66 \| moderate	17.468 \| fine	34.084 \| good	13.643 \| good	0.489 \| good	33.831 \| good	0.704 \| good
2026-01-22T05:00:00.000Z	54 \| moderate	11.128 \| good	35.647 \| good	14.025 \| good	0.805 \| good	36.41 \| good	0.743 \| good
2026-01-22T06:00:00.000Z	60 \| moderate	13.957 \| fine	45.158 \| good	8.478 \| good	0.63 \| good	34.418 \| good	0.804 \| good
2026-01-22T07:00:00.000Z	67 \| moderate	18.455 \| fine	46.144 \| good	12.692 \| good	0.655 \| good	33.173 \| good	0.892 \| good
2026-01-22T08:00:00.000Z	86 \| moderate	28.481 \| fine	79.029 \| fine	12.114 \| good	0.676 \| good	32.353 \| good	0.819 \| good
2026-01-22T09:00:00.000Z	66 \| moderate	17.287 \| fine	51.859 \| good	13.064 \| good	0.657 \| good	30.66 \| good	0.77 \| good
2026-01-22T10:00:00.000Z	62 \| moderate	14.673 \| fine	37.639 \| good	8.418 \| good	0.626 \| good	27.838 \| good	0.746 \| good
2026-01-22T11:00:00.000Z	66 \| moderate	16.774 \| fine	84.487 \| fine	11.451 \| good	0.547 \| good	27.63 \| good	0.618 \| good
2026-01-22T12:00:00.000Z	88 \| moderate	29.272 \| fine	68.039 \| fine	5.313 \| good	0.688 \| good	25.942 \| good	0.632 \| good
2026-01-22T13:00:00.000Z	67 \| moderate	17.679 \| fine	57.098 \| fine	11.42 \| good	0.686 \| good	25.775 \| good	0.633 \| good
2026-01-22T14:00:00.000Z	105 \| sensitive	36.811 \| moderate	51.738 \| good	2.457 \| good	0.489 \| good	26.564 \| good	0.723 \| good
2026-01-22T15:00:00.000Z	77 \| moderate	22.801 \| fine	99.948 \| fine	3.191 \| good	0.584 \| good	28.045 \| good	0.785 \| good
2026-01-22T16:00:00.000Z	58 \| moderate	13.241 \| fine	52.918 \| good	6.634 \| good	0.696 \| good	29.252 \| good	0.787 \| good
2026-01-22T17:00:00.000Z	75 \| moderate	21.715 \| fine	40.936 \| good	7.175 \| good	0.813 \| good	28.8 \| good	0.74 \| good
2026-01-22T18:00:00.000Z	137 \| sensitive	50.135 \| moderate	64.434 \| fine	5.384 \| good	0.78 \| good	28.539 \| good	0.69 \| good
2026-01-22T19:00:00.000Z	112 \| sensitive	39.879 \| moderate	57.893 \| fine	12.332 \| good	0.606 \| good	31.749 \| good	0.729 \| good
2026-01-22T20:00:00.000Z	97 \| moderate	34.05 \| fine	61.764 \| fine	12.503 \| good	0.561 \| good	30.041 \| good	0.589 \| good
2026-01-22T21:00:00.000Z	26 \| good	4.3 \| good	19.512 \| good	13.154 \| good	0.59 \| good	28.26 \| good	0.592 \| good
2026-01-22T22:00:00.000Z	60 \| moderate	14.01 \| fine	28.417 \| good	19.419 \| good	0.73 \| good	29.163 \| good	0.578 \| good
2026-01-22T23:00:00.000Z	73 \| moderate	21.116 \| fine	54.09 \| good	24.705 \| good	0.637 \| good	32.216 \| good	0.574 \| good
2026-01-23T00:00:00.000Z	117 \| sensitive	41.525 \| moderate	43.598 \| good	17.622 \| good	0.408 \| good	28.083 \| good	0.595 \| good
2026-01-23T01:00:00.000Z	24 \| good	4 \| good	18.682 \| good	16.514 \| good	0.392 \| good	24.718 \| good	0.563 \| good
2026-01-23T02:00:00.000Z	28 \| good	2.8 \| good	13.081 \| good	29.584 \| good	0.381 \| good	22.934 \| good	0.578 \| good
2026-01-23T03:00:00.000Z	28 \| good	5.186 \| good	9.479 \| good	22.343 \| good	0.33 \| good	30.146 \| good	0.529 \| good
2026-01-23T04:00:00.000Z	54 \| moderate	10.568 \| good	19.108 \| good	9.743 \| good	0.362 \| good	23.658 \| good	0.494 \| good
2026-01-23T04:00:00.000Z	88 \| moderate	28.775 \| fine	44.142 \| good	7.713 \| good	0.353 \| good	22.5 \| good	0.482 \| good
2026-01-23T05:00:00.000Z	58 \| moderate	12.92 \| fine	58.131 \| fine	9.985 \| good	4.089 \| good	35.263 \| good	0.417 \| good
2026-01-23T06:00:00.000Z	58 \| moderate	13.274 \| fine	60.093 \| fine	8.762 \| good	4.479 \| good	35.719 \| good	0.449 \| good
2026-01-23T07:00:00.000Z	60 \| moderate	14.478 \| fine	64.343 \| fine	7.248 \| good	4.297 \| good	34.705 \| good	0.443 \| good
2026-01-23T08:00:00.000Z	62 \| moderate	15.042 \| fine	66.53 \| fine	8.714 \| good	4.115 \| good	33.69 \| good	0.437 \| good
2026-01-23T09:00:00.000Z	60 \| moderate	13.577 \| fine	60.385 \| fine	10.473 \| good	3.933 \| good	32.675 \| good	0.431 \| good
2026-01-23T10:00:00.000Z	58 \| moderate	13.078 \| fine	58.302 \| fine	8.581 \| good	3.866 \| good	31.357 \| good	0.412 \| good
2026-01-23T11:00:00.000Z	62 \| moderate	14.67 \| fine	64.637 \| fine	7.987 \| good	3.798 \| good	30.038 \| good	0.394 \| good
2026-01-23T12:00:00.000Z	69 \| moderate	19.299 \| fine	84.523 \| fine	7.1 \| good	3.731 \| good	28.72 \| good	0.375 \| good
2026-01-23T13:00:00.000Z	71 \| moderate	20.331 \| fine	90.104 \| fine	8.691 \| good	4.049 \| good	28.934 \| good	0.382 \| good
2026-01-23T14:00:00.000Z	67 \| moderate	18.362 \| fine	80.749 \| fine	9.362 \| good	4.366 \| good	29.148 \| good	0.388 \| good
2026-01-23T15:00:00.000Z	75 \| moderate	22.153 \| fine	96.461 \| fine	8.478 \| good	4.684 \| good	29.363 \| good	0.395 \| good
2026-01-23T16:00:00.000Z	71 \| moderate	20.097 \| fine	88.424 \| fine	9.906 \| good	5.212 \| good	27.221 \| good	0.358 \| good
2026-01-23T17:00:00.000Z	69 \| moderate	19.189 \| fine	84.521 \| fine	12.853 \| good	5.74 \| good	25.079 \| good	0.32 \| good
2026-01-23T18:00:00.000Z	67 \| moderate	18.328 \| fine	80.55 \| fine	19.377 \| good	6.268 \| good	22.938 \| good	0.283 \| good
2026-01-23T19:00:00.000Z	62 \| moderate	14.924 \| fine	66.536 \| fine	29.509 \| good	5.2 \| good	19.642 \| good	0.246 \| good
2026-01-23T20:00:00.000Z	52 \| moderate	10.064 \| good	44.843 \| good	32.257 \| good	4.131 \| good	16.346 \| good	0.209 \| good
2026-01-23T21:00:00.000Z	44 \| good	7.957 \| good	35.124 \| good	33.007 \| good	3.062 \| good	13.051 \| good	0.172 \| good
2026-01-23T22:00:00.000Z	38 \| good	7.09 \| good	31.108 \| good	33.632 \| good	3.375 \| good	14.105 \| good	0.172 \| good
2026-01-23T23:00:00.000Z	38 \| good	7.127 \| good	31.29 \| good	33.262 \| good	3.688 \| good	15.16 \| good	0.172 \| good
2026-01-24T00:00:00.000Z	38 \| good	7.376 \| good	32.291 \| good	31.988 \| good	4.002 \| good	16.215 \| good	0.172 \| good
2026-01-24T01:00:00.000Z	27 \| good	5.139 \| good	22.451 \| good	28.621 \| good	4.45 \| good	23.197 \| good	0.217 \| good
2026-01-24T02:00:00.000Z	33 \| good	6.301 \| good	28.153 \| good	25.868 \| good	4.898 \| good	30.18 \| good	0.262 \| good
2026-01-24T03:00:00.000Z	49 \| good	9.023 \| good	40.806 \| good	18.355 \| good	5.346 \| good	37.163 \| good	0.307 \| good
2026-01-24T04:00:00.000Z	54 \| moderate	10.728 \| good	47.908 \| good	15.219 \| good	5.727 \| good	37.089 \| good	0.327 \| good
2026-01-24T05:00:00.000Z	56 \| moderate	12.064 \| good	53.912 \| good	10.81 \| good	6.107 \| good	37.016 \| good	0.347 \| good
2026-01-24T06:00:00.000Z	64 \| moderate	16.012 \| fine	70.93 \| fine	10.638 \| good	6.488 \| good	36.942 \| good	0.367 \| good
2026-01-24T07:00:00.000Z	60 \| moderate	14.102 \| fine	62.935 \| fine	11.034 \| good	6.45 \| good	35.145 \| good	0.343 \| good
2026-01-24T08:00:00.000Z	58 \| moderate	13.35 \| fine	60.432 \| fine	11.912 \| good	6.411 \| good	33.347 \| good	0.32 \| good
2026-01-24T09:00:00.000Z	56 \| moderate	12.383 \| fine	56.374 \| fine	10.497 \| good	6.372 \| good	31.55 \| good	0.296 \| good
2026-01-24T10:00:00.000Z	54 \| moderate	11.179 \| good	49.719 \| good	8.904 \| good	6.285 \| good	29.997 \| good	0.279 \| good
2026-01-24T11:00:00.000Z	56 \| moderate	11.644 \| good	51.663 \| good	8.413 \| good	6.198 \| good	28.445 \| good	0.263 \| good
2026-01-24T12:00:00.000Z	62 \| moderate	14.559 \| fine	64.586 \| fine	8.075 \| good	6.111 \| good	26.892 \| good	0.246 \| good
2026-01-24T13:00:00.000Z	64 \| moderate	15.905 \| fine	70.41 \| fine	7.776 \| good	6.075 \| good	26.233 \| good	0.25 \| good
2026-01-24T14:00:00.000Z	64 \| moderate	15.613 \| fine	68.649 \| fine	8.383 \| good	6.04 \| good	25.574 \| good	0.254 \| good
2026-01-24T15:00:00.000Z	66 \| moderate	17.481 \| fine	78.073 \| fine	7.469 \| good	6.004 \| good	24.916 \| good	0.258 \| good
2026-01-24T16:00:00.000Z	62 \| moderate	14.909 \| fine	66.446 \| fine	11.44 \| good	5.717 \| good	20.333 \| good	0.232 \| good
2026-01-24T17:00:00.000Z	60 \| moderate	14.229 \| fine	64.258 \| fine	17.467 \| good	5.431 \| good	15.75 \| good	0.206 \| good
2026-01-24T18:00:00.000Z	54 \| moderate	10.766 \| good	47.821 \| good	25.198 \| good	5.144 \| good	11.167 \| good	0.179 \| good
2026-01-24T19:00:00.000Z	44 \| good	7.954 \| good	34.868 \| good	32.346 \| good	4.377 \| good	9.497 \| good	0.169 \| good
2026-01-24T20:00:00.000Z	34 \| good	6.299 \| good	27.767 \| good	37.106 \| good	3.61 \| good	7.827 \| good	0.159 \| good
2026-01-24T21:00:00.000Z	36 \| good	5.231 \| good	22.787 \| good	39.243 \| good	2.842 \| good	6.156 \| good	0.148 \| good
2026-01-24T22:00:00.000Z	38 \| good	6.286 \| good	27.663 \| good	40.676 \| good	2.91 \| good	6.744 \| good	0.15 \| good
2026-01-24T23:00:00.000Z	40 \| good	4.688 \| good	20.646 \| good	43.355 \| good	2.979 \| good	7.332 \| good	0.153 \| good
2026-01-25T00:00:00.000Z	56 \| moderate	11.549 \| good	12.266 \| good	40.78 \| good	3.025 \| good	7.844 \| good	0.155 \| good
2026-01-25T01:00:00.000Z	49 \| good	8.877 \| good	38.645 \| good	35.641 \| good	3.216 \| good	14.122 \| good	0.191 \| good
2026-01-25T02:00:00.000Z	52 \| moderate	10.493 \| good	46.484 \| good	27.184 \| good	3.385 \| good	20.323 \| good	0.227 \| good
2026-01-25T03:00:00.000Z	49 \| good	9.441 \| good	42.19 \| good	18.748 \| good	3.554 \| good	26.524 \| good	0.263 \| good
2026-01-25T04:00:00.000Z	44 \| good	8.468 \| good	36.644 \| good	15.94 \| good	3.63 \| good	25.713 \| good	0.285 \| good

San Dimas

Get reliable air quality data to drive your business

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

0.54ppm

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 06:00:00 on 2026-01-22.

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 01:00:00 on 2026-01-23.

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

The current air quality in San Dimas, California is 88, categorized as Moderate 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 28.775 μg/m³.

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

The current PM₁₀ concentration at San Dimas, California is 44.142 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 0.482 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 0.353 ppb.

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

The current ozone (O₃) concentration at San Dimas, California is 7.713 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 22.5 ppb.

Certified

APIs

Refund Policy

Historical Climate Data

Terms & Conditions

Refund Policy

Terms & Conditions

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-01-21T05:00:00.000Z	64 \| moderate	15.756 \| fine	56.113 \| fine	11.316 \| good	0.646 \| good	26.013 \| good	0.752 \| good
2026-01-21T06:00:00.000Z	58 \| moderate	13.219 \| fine	36.413 \| good	10.953 \| good	0.512 \| good	26.97 \| good	0.79 \| good
2026-01-21T07:00:00.000Z	56 \| moderate	11.901 \| good	55.085 \| fine	11.07 \| good	0.579 \| good	26.265 \| good	0.79 \| good
2026-01-21T08:00:00.000Z	52 \| moderate	9.605 \| good	38.106 \| good	9.566 \| good	0.659 \| good	21.938 \| good	0.543 \| good
2026-01-21T09:00:00.000Z	54 \| moderate	11.14 \| good	34.116 \| good	12.601 \| good	0.506 \| good	21.154 \| good	0.493 \| good
2026-01-21T10:00:00.000Z	44 \| good	7.702 \| good	25.007 \| good	15.162 \| good	0.463 \| good	29.638 \| good	0.461 \| good
2026-01-21T11:00:00.000Z	52 \| moderate	9.89 \| good	29.61 \| good	14.914 \| good	0.55 \| good	29.768 \| good	0.573 \| good
2026-01-21T12:00:00.000Z	49 \| good	9.155 \| good	16.284 \| good	11.877 \| good	0.524 \| good	23.552 \| good	0.483 \| good
2026-01-21T13:00:00.000Z	49 \| good	9.403 \| good	26.209 \| good	12.878 \| good	0.488 \| good	25.349 \| good	0.483 \| good
2026-01-21T14:00:00.000Z	24 \| good	4.42 \| good	16.101 \| good	16.725 \| good	0.78 \| good	25.308 \| good	0.549 \| good
2026-01-21T15:00:00.000Z	52 \| moderate	9.553 \| good	20.508 \| good	16.111 \| good	0.826 \| good	25.466 \| good	0.653 \| good
2026-01-21T16:00:00.000Z	52 \| moderate	10.308 \| good	34.323 \| good	7.213 \| good	0.881 \| good	21.524 \| good	0.773 \| good
2026-01-21T17:00:00.000Z	64 \| moderate	15.794 \| fine	58.342 \| fine	12.314 \| good	0.869 \| good	18.95 \| good	0.718 \| good
2026-01-21T18:00:00.000Z	69 \| moderate	18.921 \| fine	32.95 \| good	9.099 \| good	0.643 \| good	21.357 \| good	0.725 \| good
2026-01-21T19:00:00.000Z	75 \| moderate	21.648 \| fine	93.568 \| fine	10.111 \| good	0.755 \| good	34.218 \| good	0.752 \| good
2026-01-21T20:00:00.000Z	64 \| moderate	15.746 \| fine	49.001 \| good	13.609 \| good	0.696 \| good	42.552 \| good	0.635 \| good
2026-01-21T21:00:00.000Z	81 \| moderate	25.314 \| fine	48.832 \| good	16.663 \| good	0.525 \| good	34.644 \| good	0.673 \| good
2026-01-21T22:00:00.000Z	66 \| moderate	16.502 \| fine	54.265 \| good	14.017 \| good	0.55 \| good	35.415 \| good	0.636 \| good
2026-01-21T23:00:00.000Z	73 \| moderate	20.899 \| fine	79.405 \| fine	17.775 \| good	0.564 \| good	30.751 \| good	0.566 \| good
2026-01-22T00:00:00.000Z	77 \| moderate	23.177 \| fine	63.938 \| fine	18.006 \| good	0.641 \| good	24.345 \| good	0.566 \| good
2026-01-22T01:00:00.000Z	69 \| moderate	19.443 \| fine	43.555 \| good	20.499 \| good	0.448 \| good	23.324 \| good	0.581 \| good
2026-01-22T02:00:00.000Z	77 \| moderate	23.173 \| fine	46.681 \| good	16.044 \| good	0.426 \| good	34.22 \| good	0.676 \| good
2026-01-22T03:00:00.000Z	90 \| moderate	30.102 \| fine	57.95 \| fine	16.49 \| good	0.423 \| good	34.831 \| good	0.711 \| good
2026-01-22T04:00:00.000Z	66 \| moderate	17.468 \| fine	34.084 \| good	13.643 \| good	0.489 \| good	33.831 \| good	0.704 \| good
2026-01-22T05:00:00.000Z	54 \| moderate	11.128 \| good	35.647 \| good	14.025 \| good	0.805 \| good	36.41 \| good	0.743 \| good
2026-01-22T06:00:00.000Z	60 \| moderate	13.957 \| fine	45.158 \| good	8.478 \| good	0.63 \| good	34.418 \| good	0.804 \| good
2026-01-22T07:00:00.000Z	67 \| moderate	18.455 \| fine	46.144 \| good	12.692 \| good	0.655 \| good	33.173 \| good	0.892 \| good
2026-01-22T08:00:00.000Z	86 \| moderate	28.481 \| fine	79.029 \| fine	12.114 \| good	0.676 \| good	32.353 \| good	0.819 \| good
2026-01-22T09:00:00.000Z	66 \| moderate	17.287 \| fine	51.859 \| good	13.064 \| good	0.657 \| good	30.66 \| good	0.77 \| good
2026-01-22T10:00:00.000Z	62 \| moderate	14.673 \| fine	37.639 \| good	8.418 \| good	0.626 \| good	27.838 \| good	0.746 \| good
2026-01-22T11:00:00.000Z	66 \| moderate	16.774 \| fine	84.487 \| fine	11.451 \| good	0.547 \| good	27.63 \| good	0.618 \| good
2026-01-22T12:00:00.000Z	88 \| moderate	29.272 \| fine	68.039 \| fine	5.313 \| good	0.688 \| good	25.942 \| good	0.632 \| good
2026-01-22T13:00:00.000Z	67 \| moderate	17.679 \| fine	57.098 \| fine	11.42 \| good	0.686 \| good	25.775 \| good	0.633 \| good
2026-01-22T14:00:00.000Z	105 \| sensitive	36.811 \| moderate	51.738 \| good	2.457 \| good	0.489 \| good	26.564 \| good	0.723 \| good
2026-01-22T15:00:00.000Z	77 \| moderate	22.801 \| fine	99.948 \| fine	3.191 \| good	0.584 \| good	28.045 \| good	0.785 \| good
2026-01-22T16:00:00.000Z	58 \| moderate	13.241 \| fine	52.918 \| good	6.634 \| good	0.696 \| good	29.252 \| good	0.787 \| good
2026-01-22T17:00:00.000Z	75 \| moderate	21.715 \| fine	40.936 \| good	7.175 \| good	0.813 \| good	28.8 \| good	0.74 \| good
2026-01-22T18:00:00.000Z	137 \| sensitive	50.135 \| moderate	64.434 \| fine	5.384 \| good	0.78 \| good	28.539 \| good	0.69 \| good
2026-01-22T19:00:00.000Z	112 \| sensitive	39.879 \| moderate	57.893 \| fine	12.332 \| good	0.606 \| good	31.749 \| good	0.729 \| good
2026-01-22T20:00:00.000Z	97 \| moderate	34.05 \| fine	61.764 \| fine	12.503 \| good	0.561 \| good	30.041 \| good	0.589 \| good
2026-01-22T21:00:00.000Z	26 \| good	4.3 \| good	19.512 \| good	13.154 \| good	0.59 \| good	28.26 \| good	0.592 \| good
2026-01-22T22:00:00.000Z	60 \| moderate	14.01 \| fine	28.417 \| good	19.419 \| good	0.73 \| good	29.163 \| good	0.578 \| good
2026-01-22T23:00:00.000Z	73 \| moderate	21.116 \| fine	54.09 \| good	24.705 \| good	0.637 \| good	32.216 \| good	0.574 \| good
2026-01-23T00:00:00.000Z	117 \| sensitive	41.525 \| moderate	43.598 \| good	17.622 \| good	0.408 \| good	28.083 \| good	0.595 \| good
2026-01-23T01:00:00.000Z	24 \| good	4 \| good	18.682 \| good	16.514 \| good	0.392 \| good	24.718 \| good	0.563 \| good
2026-01-23T02:00:00.000Z	28 \| good	2.8 \| good	13.081 \| good	29.584 \| good	0.381 \| good	22.934 \| good	0.578 \| good
2026-01-23T03:00:00.000Z	28 \| good	5.186 \| good	9.479 \| good	22.343 \| good	0.33 \| good	30.146 \| good	0.529 \| good
2026-01-23T04:00:00.000Z	54 \| moderate	10.568 \| good	19.108 \| good	9.743 \| good	0.362 \| good	23.658 \| good	0.494 \| good
2026-01-23T04:00:00.000Z	88 \| moderate	28.775 \| fine	44.142 \| good	7.713 \| good	0.353 \| good	22.5 \| good	0.482 \| good
2026-01-23T05:00:00.000Z	58 \| moderate	12.92 \| fine	58.131 \| fine	9.985 \| good	4.089 \| good	35.263 \| good	0.417 \| good
2026-01-23T06:00:00.000Z	58 \| moderate	13.274 \| fine	60.093 \| fine	8.762 \| good	4.479 \| good	35.719 \| good	0.449 \| good
2026-01-23T07:00:00.000Z	60 \| moderate	14.478 \| fine	64.343 \| fine	7.248 \| good	4.297 \| good	34.705 \| good	0.443 \| good
2026-01-23T08:00:00.000Z	62 \| moderate	15.042 \| fine	66.53 \| fine	8.714 \| good	4.115 \| good	33.69 \| good	0.437 \| good
2026-01-23T09:00:00.000Z	60 \| moderate	13.577 \| fine	60.385 \| fine	10.473 \| good	3.933 \| good	32.675 \| good	0.431 \| good
2026-01-23T10:00:00.000Z	58 \| moderate	13.078 \| fine	58.302 \| fine	8.581 \| good	3.866 \| good	31.357 \| good	0.412 \| good
2026-01-23T11:00:00.000Z	62 \| moderate	14.67 \| fine	64.637 \| fine	7.987 \| good	3.798 \| good	30.038 \| good	0.394 \| good
2026-01-23T12:00:00.000Z	69 \| moderate	19.299 \| fine	84.523 \| fine	7.1 \| good	3.731 \| good	28.72 \| good	0.375 \| good
2026-01-23T13:00:00.000Z	71 \| moderate	20.331 \| fine	90.104 \| fine	8.691 \| good	4.049 \| good	28.934 \| good	0.382 \| good
2026-01-23T14:00:00.000Z	67 \| moderate	18.362 \| fine	80.749 \| fine	9.362 \| good	4.366 \| good	29.148 \| good	0.388 \| good
2026-01-23T15:00:00.000Z	75 \| moderate	22.153 \| fine	96.461 \| fine	8.478 \| good	4.684 \| good	29.363 \| good	0.395 \| good
2026-01-23T16:00:00.000Z	71 \| moderate	20.097 \| fine	88.424 \| fine	9.906 \| good	5.212 \| good	27.221 \| good	0.358 \| good
2026-01-23T17:00:00.000Z	69 \| moderate	19.189 \| fine	84.521 \| fine	12.853 \| good	5.74 \| good	25.079 \| good	0.32 \| good
2026-01-23T18:00:00.000Z	67 \| moderate	18.328 \| fine	80.55 \| fine	19.377 \| good	6.268 \| good	22.938 \| good	0.283 \| good
2026-01-23T19:00:00.000Z	62 \| moderate	14.924 \| fine	66.536 \| fine	29.509 \| good	5.2 \| good	19.642 \| good	0.246 \| good
2026-01-23T20:00:00.000Z	52 \| moderate	10.064 \| good	44.843 \| good	32.257 \| good	4.131 \| good	16.346 \| good	0.209 \| good
2026-01-23T21:00:00.000Z	44 \| good	7.957 \| good	35.124 \| good	33.007 \| good	3.062 \| good	13.051 \| good	0.172 \| good
2026-01-23T22:00:00.000Z	38 \| good	7.09 \| good	31.108 \| good	33.632 \| good	3.375 \| good	14.105 \| good	0.172 \| good
2026-01-23T23:00:00.000Z	38 \| good	7.127 \| good	31.29 \| good	33.262 \| good	3.688 \| good	15.16 \| good	0.172 \| good
2026-01-24T00:00:00.000Z	38 \| good	7.376 \| good	32.291 \| good	31.988 \| good	4.002 \| good	16.215 \| good	0.172 \| good
2026-01-24T01:00:00.000Z	27 \| good	5.139 \| good	22.451 \| good	28.621 \| good	4.45 \| good	23.197 \| good	0.217 \| good
2026-01-24T02:00:00.000Z	33 \| good	6.301 \| good	28.153 \| good	25.868 \| good	4.898 \| good	30.18 \| good	0.262 \| good
2026-01-24T03:00:00.000Z	49 \| good	9.023 \| good	40.806 \| good	18.355 \| good	5.346 \| good	37.163 \| good	0.307 \| good
2026-01-24T04:00:00.000Z	54 \| moderate	10.728 \| good	47.908 \| good	15.219 \| good	5.727 \| good	37.089 \| good	0.327 \| good
2026-01-24T05:00:00.000Z	56 \| moderate	12.064 \| good	53.912 \| good	10.81 \| good	6.107 \| good	37.016 \| good	0.347 \| good
2026-01-24T06:00:00.000Z	64 \| moderate	16.012 \| fine	70.93 \| fine	10.638 \| good	6.488 \| good	36.942 \| good	0.367 \| good
2026-01-24T07:00:00.000Z	60 \| moderate	14.102 \| fine	62.935 \| fine	11.034 \| good	6.45 \| good	35.145 \| good	0.343 \| good
2026-01-24T08:00:00.000Z	58 \| moderate	13.35 \| fine	60.432 \| fine	11.912 \| good	6.411 \| good	33.347 \| good	0.32 \| good
2026-01-24T09:00:00.000Z	56 \| moderate	12.383 \| fine	56.374 \| fine	10.497 \| good	6.372 \| good	31.55 \| good	0.296 \| good
2026-01-24T10:00:00.000Z	54 \| moderate	11.179 \| good	49.719 \| good	8.904 \| good	6.285 \| good	29.997 \| good	0.279 \| good
2026-01-24T11:00:00.000Z	56 \| moderate	11.644 \| good	51.663 \| good	8.413 \| good	6.198 \| good	28.445 \| good	0.263 \| good
2026-01-24T12:00:00.000Z	62 \| moderate	14.559 \| fine	64.586 \| fine	8.075 \| good	6.111 \| good	26.892 \| good	0.246 \| good
2026-01-24T13:00:00.000Z	64 \| moderate	15.905 \| fine	70.41 \| fine	7.776 \| good	6.075 \| good	26.233 \| good	0.25 \| good
2026-01-24T14:00:00.000Z	64 \| moderate	15.613 \| fine	68.649 \| fine	8.383 \| good	6.04 \| good	25.574 \| good	0.254 \| good
2026-01-24T15:00:00.000Z	66 \| moderate	17.481 \| fine	78.073 \| fine	7.469 \| good	6.004 \| good	24.916 \| good	0.258 \| good
2026-01-24T16:00:00.000Z	62 \| moderate	14.909 \| fine	66.446 \| fine	11.44 \| good	5.717 \| good	20.333 \| good	0.232 \| good
2026-01-24T17:00:00.000Z	60 \| moderate	14.229 \| fine	64.258 \| fine	17.467 \| good	5.431 \| good	15.75 \| good	0.206 \| good
2026-01-24T18:00:00.000Z	54 \| moderate	10.766 \| good	47.821 \| good	25.198 \| good	5.144 \| good	11.167 \| good	0.179 \| good
2026-01-24T19:00:00.000Z	44 \| good	7.954 \| good	34.868 \| good	32.346 \| good	4.377 \| good	9.497 \| good	0.169 \| good
2026-01-24T20:00:00.000Z	34 \| good	6.299 \| good	27.767 \| good	37.106 \| good	3.61 \| good	7.827 \| good	0.159 \| good
2026-01-24T21:00:00.000Z	36 \| good	5.231 \| good	22.787 \| good	39.243 \| good	2.842 \| good	6.156 \| good	0.148 \| good
2026-01-24T22:00:00.000Z	38 \| good	6.286 \| good	27.663 \| good	40.676 \| good	2.91 \| good	6.744 \| good	0.15 \| good
2026-01-24T23:00:00.000Z	40 \| good	4.688 \| good	20.646 \| good	43.355 \| good	2.979 \| good	7.332 \| good	0.153 \| good
2026-01-25T00:00:00.000Z	56 \| moderate	11.549 \| good	12.266 \| good	40.78 \| good	3.025 \| good	7.844 \| good	0.155 \| good
2026-01-25T01:00:00.000Z	49 \| good	8.877 \| good	38.645 \| good	35.641 \| good	3.216 \| good	14.122 \| good	0.191 \| good
2026-01-25T02:00:00.000Z	52 \| moderate	10.493 \| good	46.484 \| good	27.184 \| good	3.385 \| good	20.323 \| good	0.227 \| good
2026-01-25T03:00:00.000Z	49 \| good	9.441 \| good	42.19 \| good	18.748 \| good	3.554 \| good	26.524 \| good	0.263 \| good
2026-01-25T04:00:00.000Z	44 \| good	8.468 \| good	36.644 \| good	15.94 \| good	3.63 \| good	25.713 \| good	0.285 \| 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?