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

The current PM10 concentration at San Dimas, California is 62.086 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 0.971 ppb.

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

The current ozone (O3) concentration at San Dimas, California is 83.186 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 9.615 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 15.549 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)

143

Unhealthy for sensitive groups

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)

15.55 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

62.09 μg/m³

155

255

425

605+

Ozone (O₃)

83.19 ppb

201

201+

Sulfur Dioxide (SO₂)

0.97 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

9.62 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.29 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
2026-07-21T23:00:00.000Z	71 \| moderate	11.131 \| good	44.509 \| good	60.745 \| fine	0.538 \| good	8.275 \| good	0.202 \| good
2026-07-22T00:00:00.000Z	74 \| moderate	9.621 \| good	40.897 \| good	61.674 \| fine	0.564 \| good	7.52 \| good	0.173 \| good
2026-07-22T01:00:00.000Z	50 \| good	7.999 \| good	36.617 \| good	53.96 \| good	0.57 \| good	7.538 \| good	0.194 \| good
2026-07-22T02:00:00.000Z	45 \| good	7.216 \| good	30.214 \| good	49.029 \| good	0.553 \| good	6.332 \| good	0.173 \| good
2026-07-22T03:00:00.000Z	38 \| good	6.234 \| good	25.875 \| good	40.758 \| good	0.476 \| good	6.728 \| good	0.194 \| good
2026-07-22T04:00:00.000Z	33 \| good	5.726 \| good	27.999 \| good	34.714 \| good	0.461 \| good	8.207 \| good	0.215 \| good
2026-07-22T05:00:00.000Z	25 \| good	3.564 \| good	24.308 \| good	27.228 \| good	0.627 \| good	9.469 \| good	0.261 \| good
2026-07-22T06:00:00.000Z	24 \| good	2.134 \| good	22.037 \| good	25.654 \| good	0.508 \| good	9.755 \| good	0.258 \| good
2026-07-22T07:00:00.000Z	24 \| good	2.139 \| good	22.209 \| good	25.619 \| good	0.509 \| good	9.755 \| good	0.258 \| good
2026-07-22T08:00:00.000Z	22 \| good	4.22 \| good	23.902 \| good	21.65 \| good	0.492 \| good	8.905 \| good	0.262 \| good
2026-07-22T09:00:00.000Z	27 \| good	5.051 \| good	18.531 \| good	18.905 \| good	0.512 \| good	9.773 \| good	0.219 \| good
2026-07-22T10:00:00.000Z	27 \| good	5.456 \| good	16.494 \| good	16.994 \| good	0.461 \| good	9.585 \| good	0.219 \| good
2026-07-22T11:00:00.000Z	33 \| good	5.95 \| good	14.989 \| good	15.821 \| good	0.596 \| good	10.04 \| good	0.197 \| good
2026-07-22T12:00:00.000Z	33 \| good	5.9 \| good	15.776 \| good	15.652 \| good	0.495 \| good	9.467 \| good	0.235 \| good
2026-07-22T13:00:00.000Z	33 \| good	6.284 \| good	16.639 \| good	15.458 \| good	0.495 \| good	9.467 \| good	0.235 \| good
2026-07-22T14:00:00.000Z	38 \| good	7.277 \| good	19.13 \| good	15.3 \| good	0.509 \| good	9.796 \| good	0.375 \| good
2026-07-22T15:00:00.000Z	38 \| good	7.019 \| good	24.782 \| good	17.118 \| good	0.707 \| good	10.6 \| good	0.337 \| good
2026-07-22T16:00:00.000Z	38 \| good	7.195 \| good	28.118 \| good	21.526 \| good	0.746 \| good	10.251 \| good	0.278 \| good
2026-07-22T17:00:00.000Z	44 \| good	8.007 \| good	32.634 \| good	27.006 \| good	0.718 \| good	11.81 \| good	0.257 \| good
2026-07-22T18:00:00.000Z	49 \| good	8.908 \| good	32.496 \| good	30.851 \| good	0.686 \| good	11.157 \| good	0.257 \| good
2026-07-22T19:00:00.000Z	52 \| moderate	9.655 \| good	35.693 \| good	36.928 \| good	0.677 \| good	10.361 \| good	0.278 \| good
2026-07-22T20:00:00.000Z	49 \| good	9.049 \| good	37.07 \| good	43.722 \| good	0.772 \| good	8.654 \| good	0.278 \| good
2026-07-22T21:00:00.000Z	49 \| good	9.198 \| good	43.749 \| good	52.882 \| good	0.75 \| good	8.08 \| good	0.257 \| good
2026-07-22T22:00:00.000Z	71 \| moderate	10.119 \| good	39.995 \| good	60.988 \| fine	0.702 \| good	7.741 \| good	0.24 \| good
2026-07-22T23:00:00.000Z	80 \| moderate	12.299 \| fine	40.447 \| good	64.122 \| fine	0.56 \| good	7.598 \| good	0.262 \| good
2026-07-23T00:00:00.000Z	71 \| moderate	11.332 \| good	37.238 \| good	61.481 \| fine	0.631 \| good	7.79 \| good	0.24 \| good
2026-07-23T01:00:00.000Z	61 \| moderate	10.516 \| good	36.338 \| good	57.631 \| fine	0.707 \| good	7.592 \| good	0.24 \| good
2026-07-23T02:00:00.000Z	49 \| good	9.414 \| good	29.932 \| good	51.942 \| good	0.723 \| good	7.195 \| good	0.262 \| good
2026-07-23T03:00:00.000Z	52 \| moderate	9.525 \| good	42.033 \| good	43.045 \| good	1.152 \| good	5.539 \| good	0.113 \| good
2026-07-23T04:00:00.000Z	38 \| good	7.304 \| good	28.145 \| good	34.505 \| good	0.638 \| good	11.934 \| good	0.262 \| good
2026-07-23T05:00:00.000Z	38 \| good	7.004 \| good	27.249 \| good	25.901 \| good	0.76 \| good	12.541 \| good	0.261 \| good
2026-07-23T06:00:00.000Z	38 \| good	6.722 \| good	27.728 \| good	21.332 \| good	0.609 \| good	11.511 \| good	0.283 \| good
2026-07-23T07:00:00.000Z	38 \| good	6.686 \| good	27.757 \| good	21.503 \| good	0.593 \| good	11.511 \| good	0.283 \| good
2026-07-23T08:00:00.000Z	33 \| good	5.983 \| good	25.601 \| good	16.925 \| good	0.571 \| good	10.764 \| good	0.278 \| good
2026-07-23T09:00:00.000Z	27 \| good	4.951 \| good	27.803 \| good	13.821 \| good	0.642 \| good	11.982 \| good	0.235 \| good
2026-07-23T10:00:00.000Z	31 \| good	4.918 \| good	33.583 \| good	13.937 \| good	0.594 \| good	12.8 \| good	0.252 \| good
2026-07-23T11:00:00.000Z	38 \| good	7.166 \| good	28.574 \| good	11.508 \| good	0.78 \| good	13.78 \| good	0.235 \| good
2026-07-23T12:00:00.000Z	44 \| good	8.03 \| good	26.941 \| good	11.407 \| good	0.602 \| good	13.046 \| good	0.281 \| good
2026-07-23T13:00:00.000Z	44 \| good	8.044 \| good	26.258 \| good	10.535 \| good	0.601 \| good	13.046 \| good	0.281 \| good
2026-07-23T14:00:00.000Z	44 \| good	8.45 \| good	28.174 \| good	11.051 \| good	0.695 \| good	12.666 \| good	0.423 \| good
2026-07-23T15:00:00.000Z	49 \| good	9.337 \| good	35.164 \| good	16.255 \| good	0.894 \| good	12.956 \| good	0.445 \| good
2026-07-23T16:00:00.000Z	49 \| good	9.028 \| good	41.193 \| good	16.538 \| good	0.93 \| good	14.574 \| good	0.407 \| good
2026-07-23T17:00:00.000Z	56 \| moderate	11.605 \| good	61.363 \| fine	29.652 \| good	0.831 \| good	15.775 \| good	0.34 \| good
2026-07-23T18:00:00.000Z	61 \| moderate	11.232 \| good	75.486 \| fine	38.467 \| good	0.879 \| good	16.323 \| good	0.351 \| good
2026-07-23T19:00:00.000Z	58 \| moderate	13.12 \| fine	63.198 \| fine	53.726 \| good	0.799 \| good	13.178 \| good	0.32 \| good
2026-07-23T20:00:00.000Z	77 \| moderate	12.658 \| fine	60.71 \| fine	63.224 \| fine	0.764 \| good	10.724 \| good	0.301 \| good
2026-07-23T21:00:00.000Z	108 \| sensitive	14.311 \| fine	63.505 \| fine	73.371 \| moderate	0.825 \| good	10.561 \| good	0.278 \| good
2026-07-23T22:00:00.000Z	143 \| sensitive	15.549 \| fine	62.086 \| fine	83.186 \| moderate	0.971 \| good	9.615 \| good	0.286 \| good
2026-07-23T22:00:00.000Z	143 \| sensitive	15.549 \| fine	62.086 \| fine	83.186 \| moderate	0.971 \| good	9.615 \| good	0.286 \| good
2026-07-23T23:00:00.000Z	143 \| sensitive	17.101 \| fine	76.562 \| fine	83.456 \| moderate	1.267 \| good	3.512 \| good	0.128 \| good
2026-07-24T00:00:00.000Z	100 \| moderate	13.197 \| fine	59.024 \| fine	70.272 \| fine	1.309 \| good	3.501 \| good	0.128 \| good
2026-07-24T01:00:00.000Z	54 \| moderate	11.432 \| good	51.063 \| good	56.434 \| fine	1.351 \| good	4.088 \| good	0.129 \| good
2026-07-24T02:00:00.000Z	54 \| moderate	11.176 \| good	49.44 \| good	49.103 \| good	1.397 \| good	5.476 \| good	0.131 \| good
2026-07-24T03:00:00.000Z	52 \| moderate	9.718 \| good	43.003 \| good	38.05 \| good	1.423 \| good	7.585 \| good	0.134 \| good
2026-07-24T04:00:00.000Z	52 \| moderate	9.934 \| good	44.313 \| good	32.231 \| good	1.447 \| good	9.272 \| good	0.137 \| good
2026-07-24T05:00:00.000Z	56 \| moderate	12.135 \| fine	54.463 \| good	26.051 \| good	1.441 \| good	10.638 \| good	0.139 \| good
2026-07-24T06:00:00.000Z	58 \| moderate	12.702 \| fine	56.727 \| fine	22.954 \| good	1.417 \| good	12.355 \| good	0.143 \| good
2026-07-24T07:00:00.000Z	54 \| moderate	11.141 \| good	49.307 \| good	22.054 \| good	1.366 \| good	14.248 \| good	0.149 \| good
2026-07-24T08:00:00.000Z	56 \| moderate	11.956 \| good	53.666 \| good	19.092 \| good	1.287 \| good	14.722 \| good	0.153 \| good
2026-07-24T09:00:00.000Z	58 \| moderate	12.583 \| fine	56.115 \| fine	16.797 \| good	1.232 \| good	15.315 \| good	0.156 \| good
2026-07-24T10:00:00.000Z	58 \| moderate	13.417 \| fine	59.964 \| fine	11.547 \| good	1.212 \| good	16.386 \| good	0.16 \| good
2026-07-24T11:00:00.000Z	56 \| moderate	11.976 \| good	53.773 \| good	10 \| good	1.219 \| good	17.626 \| good	0.166 \| good
2026-07-24T12:00:00.000Z	56 \| moderate	11.792 \| good	52.778 \| good	9.897 \| good	1.22 \| good	18.473 \| good	0.171 \| good
2026-07-24T13:00:00.000Z	56 \| moderate	12.235 \| fine	55.385 \| fine	9.342 \| good	1.222 \| good	18.728 \| good	0.176 \| good
2026-07-24T14:00:00.000Z	58 \| moderate	13.487 \| fine	59.982 \| fine	12.756 \| good	1.203 \| good	16.157 \| good	0.182 \| good
2026-07-24T15:00:00.000Z	62 \| moderate	14.509 \| fine	65.152 \| fine	18.508 \| good	1.15 \| good	9.797 \| good	0.147 \| good
2026-07-24T16:00:00.000Z	66 \| moderate	17.443 \| fine	77.37 \| fine	28.489 \| good	1.078 \| good	7.451 \| good	0.137 \| good
2026-07-24T17:00:00.000Z	71 \| moderate	20.282 \| fine	89.386 \| fine	44.185 \| good	1.087 \| good	6.317 \| good	0.134 \| good
2026-07-24T18:00:00.000Z	87 \| moderate	21.194 \| fine	93.112 \| fine	66.166 \| fine	1.105 \| good	5.464 \| good	0.133 \| good
2026-07-24T19:00:00.000Z	136 \| sensitive	18.734 \| fine	82.372 \| fine	81.479 \| moderate	1.107 \| good	4.568 \| good	0.131 \| good
2026-07-24T20:00:00.000Z	147 \| sensitive	13.754 \| fine	61.233 \| fine	84.06 \| moderate	1.098 \| good	3.823 \| good	0.128 \| good
2026-07-24T21:00:00.000Z	133 \| sensitive	10.977 \| good	48.322 \| good	79.994 \| moderate	1.102 \| good	3.377 \| good	0.125 \| good
2026-07-24T22:00:00.000Z	108 \| sensitive	11.96 \| good	53.497 \| good	73.49 \| moderate	1.121 \| good	3.103 \| good	0.122 \| good
2026-07-24T23:00:00.000Z	90 \| moderate	10.734 \| good	47.655 \| good	67.455 \| fine	1.137 \| good	2.977 \| good	0.12 \| good
2026-07-25T00:00:00.000Z	77 \| moderate	10.812 \| good	47.677 \| good	63.33 \| fine	1.152 \| good	3.125 \| good	0.118 \| good
2026-07-25T01:00:00.000Z	56 \| moderate	11.98 \| good	53.572 \| good	55.481 \| fine	1.174 \| good	3.587 \| good	0.117 \| good
2026-07-25T02:00:00.000Z	54 \| moderate	10.792 \| good	48.111 \| good	44.077 \| good	1.197 \| good	4.687 \| good	0.117 \| good
2026-07-25T03:00:00.000Z	56 \| moderate	12.415 \| fine	55.579 \| fine	36.319 \| good	1.232 \| good	6.471 \| good	0.118 \| good
2026-07-25T04:00:00.000Z	52 \| moderate	10.359 \| good	45.826 \| good	29.418 \| good	1.261 \| good	7.967 \| good	0.121 \| good
2026-07-25T05:00:00.000Z	56 \| moderate	11.51 \| good	50.803 \| good	24.505 \| good	1.269 \| good	9.249 \| good	0.124 \| good
2026-07-25T06:00:00.000Z	54 \| moderate	10.682 \| good	47.219 \| good	20.172 \| good	1.262 \| good	10.952 \| good	0.128 \| good
2026-07-25T07:00:00.000Z	49 \| good	8.738 \| good	38.283 \| good	18.292 \| good	1.229 \| good	12.664 \| good	0.134 \| good
2026-07-25T08:00:00.000Z	52 \| moderate	9.937 \| good	43.752 \| good	15.776 \| good	1.188 \| good	13.866 \| good	0.14 \| good
2026-07-25T09:00:00.000Z	54 \| moderate	11.09 \| good	49.364 \| good	13.011 \| good	1.175 \| good	15.473 \| good	0.147 \| good
2026-07-25T10:00:00.000Z	56 \| moderate	12.008 \| good	53.908 \| good	11.09 \| good	1.186 \| good	16.856 \| good	0.153 \| good
2026-07-25T11:00:00.000Z	49 \| good	9.469 \| good	42.204 \| good	10.857 \| good	1.185 \| good	18.194 \| good	0.159 \| good
2026-07-25T12:00:00.000Z	49 \| good	8.525 \| good	37.604 \| good	9.495 \| good	1.175 \| good	20.186 \| good	0.168 \| good
2026-07-25T13:00:00.000Z	49 \| good	8.746 \| good	38.242 \| good	9.296 \| good	1.17 \| good	21.078 \| good	0.177 \| good
2026-07-25T14:00:00.000Z	54 \| moderate	11.27 \| good	50.008 \| good	11.64 \| good	1.178 \| good	18.021 \| good	0.186 \| good
2026-07-25T15:00:00.000Z	58 \| moderate	13.196 \| fine	59.562 \| fine	17.838 \| good	1.243 \| good	11.25 \| good	0.149 \| good
2026-07-25T16:00:00.000Z	58 \| moderate	13.436 \| fine	60.532 \| fine	27.528 \| good	1.254 \| good	8.368 \| good	0.135 \| good
2026-07-25T17:00:00.000Z	64 \| moderate	15.644 \| fine	69.545 \| fine	39.881 \| good	1.265 \| good	7.049 \| good	0.131 \| good
2026-07-25T18:00:00.000Z	66 \| moderate	16.592 \| fine	73.588 \| fine	52.405 \| good	1.247 \| good	5.949 \| good	0.128 \| good
2026-07-25T19:00:00.000Z	77 \| moderate	11.85 \| good	53.228 \| good	62.53 \| fine	1.225 \| good	4.882 \| good	0.126 \| good
2026-07-25T20:00:00.000Z	100 \| moderate	11.404 \| good	50.74 \| good	69.523 \| fine	1.206 \| good	4.074 \| good	0.123 \| good
2026-07-25T21:00:00.000Z	136 \| sensitive	12.183 \| fine	54.203 \| good	80.742 \| moderate	1.222 \| good	3.56 \| good	0.121 \| good
2026-07-25T22:00:00.000Z	143 \| sensitive	15.72 \| fine	70.431 \| fine	82.713 \| moderate	1.263 \| good	3.181 \| good	0.12 \| good

San Dimas

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

0.28ppm

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

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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 09:00:00 on 2026-07-23.

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 09:00:00 on 2026-07-23.

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

The current air quality in San Dimas, California is 143, categorized as Unhealthy for Sensitive Groups based on real-time data.

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

The most common pollutant in San Dimas, California is O3.

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 15.549 μg/m³.

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

The current PM₁₀ concentration at San Dimas, California is 62.086 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 0.286 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 0.971 ppb.

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

The current ozone (O₃) concentration at San Dimas, California is 83.186 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 9.615 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-07-21T23:00:00.000Z	71 \| moderate	11.131 \| good	44.509 \| good	60.745 \| fine	0.538 \| good	8.275 \| good	0.202 \| good
2026-07-22T00:00:00.000Z	74 \| moderate	9.621 \| good	40.897 \| good	61.674 \| fine	0.564 \| good	7.52 \| good	0.173 \| good
2026-07-22T01:00:00.000Z	50 \| good	7.999 \| good	36.617 \| good	53.96 \| good	0.57 \| good	7.538 \| good	0.194 \| good
2026-07-22T02:00:00.000Z	45 \| good	7.216 \| good	30.214 \| good	49.029 \| good	0.553 \| good	6.332 \| good	0.173 \| good
2026-07-22T03:00:00.000Z	38 \| good	6.234 \| good	25.875 \| good	40.758 \| good	0.476 \| good	6.728 \| good	0.194 \| good
2026-07-22T04:00:00.000Z	33 \| good	5.726 \| good	27.999 \| good	34.714 \| good	0.461 \| good	8.207 \| good	0.215 \| good
2026-07-22T05:00:00.000Z	25 \| good	3.564 \| good	24.308 \| good	27.228 \| good	0.627 \| good	9.469 \| good	0.261 \| good
2026-07-22T06:00:00.000Z	24 \| good	2.134 \| good	22.037 \| good	25.654 \| good	0.508 \| good	9.755 \| good	0.258 \| good
2026-07-22T07:00:00.000Z	24 \| good	2.139 \| good	22.209 \| good	25.619 \| good	0.509 \| good	9.755 \| good	0.258 \| good
2026-07-22T08:00:00.000Z	22 \| good	4.22 \| good	23.902 \| good	21.65 \| good	0.492 \| good	8.905 \| good	0.262 \| good
2026-07-22T09:00:00.000Z	27 \| good	5.051 \| good	18.531 \| good	18.905 \| good	0.512 \| good	9.773 \| good	0.219 \| good
2026-07-22T10:00:00.000Z	27 \| good	5.456 \| good	16.494 \| good	16.994 \| good	0.461 \| good	9.585 \| good	0.219 \| good
2026-07-22T11:00:00.000Z	33 \| good	5.95 \| good	14.989 \| good	15.821 \| good	0.596 \| good	10.04 \| good	0.197 \| good
2026-07-22T12:00:00.000Z	33 \| good	5.9 \| good	15.776 \| good	15.652 \| good	0.495 \| good	9.467 \| good	0.235 \| good
2026-07-22T13:00:00.000Z	33 \| good	6.284 \| good	16.639 \| good	15.458 \| good	0.495 \| good	9.467 \| good	0.235 \| good
2026-07-22T14:00:00.000Z	38 \| good	7.277 \| good	19.13 \| good	15.3 \| good	0.509 \| good	9.796 \| good	0.375 \| good
2026-07-22T15:00:00.000Z	38 \| good	7.019 \| good	24.782 \| good	17.118 \| good	0.707 \| good	10.6 \| good	0.337 \| good
2026-07-22T16:00:00.000Z	38 \| good	7.195 \| good	28.118 \| good	21.526 \| good	0.746 \| good	10.251 \| good	0.278 \| good
2026-07-22T17:00:00.000Z	44 \| good	8.007 \| good	32.634 \| good	27.006 \| good	0.718 \| good	11.81 \| good	0.257 \| good
2026-07-22T18:00:00.000Z	49 \| good	8.908 \| good	32.496 \| good	30.851 \| good	0.686 \| good	11.157 \| good	0.257 \| good
2026-07-22T19:00:00.000Z	52 \| moderate	9.655 \| good	35.693 \| good	36.928 \| good	0.677 \| good	10.361 \| good	0.278 \| good
2026-07-22T20:00:00.000Z	49 \| good	9.049 \| good	37.07 \| good	43.722 \| good	0.772 \| good	8.654 \| good	0.278 \| good
2026-07-22T21:00:00.000Z	49 \| good	9.198 \| good	43.749 \| good	52.882 \| good	0.75 \| good	8.08 \| good	0.257 \| good
2026-07-22T22:00:00.000Z	71 \| moderate	10.119 \| good	39.995 \| good	60.988 \| fine	0.702 \| good	7.741 \| good	0.24 \| good
2026-07-22T23:00:00.000Z	80 \| moderate	12.299 \| fine	40.447 \| good	64.122 \| fine	0.56 \| good	7.598 \| good	0.262 \| good
2026-07-23T00:00:00.000Z	71 \| moderate	11.332 \| good	37.238 \| good	61.481 \| fine	0.631 \| good	7.79 \| good	0.24 \| good
2026-07-23T01:00:00.000Z	61 \| moderate	10.516 \| good	36.338 \| good	57.631 \| fine	0.707 \| good	7.592 \| good	0.24 \| good
2026-07-23T02:00:00.000Z	49 \| good	9.414 \| good	29.932 \| good	51.942 \| good	0.723 \| good	7.195 \| good	0.262 \| good
2026-07-23T03:00:00.000Z	52 \| moderate	9.525 \| good	42.033 \| good	43.045 \| good	1.152 \| good	5.539 \| good	0.113 \| good
2026-07-23T04:00:00.000Z	38 \| good	7.304 \| good	28.145 \| good	34.505 \| good	0.638 \| good	11.934 \| good	0.262 \| good
2026-07-23T05:00:00.000Z	38 \| good	7.004 \| good	27.249 \| good	25.901 \| good	0.76 \| good	12.541 \| good	0.261 \| good
2026-07-23T06:00:00.000Z	38 \| good	6.722 \| good	27.728 \| good	21.332 \| good	0.609 \| good	11.511 \| good	0.283 \| good
2026-07-23T07:00:00.000Z	38 \| good	6.686 \| good	27.757 \| good	21.503 \| good	0.593 \| good	11.511 \| good	0.283 \| good
2026-07-23T08:00:00.000Z	33 \| good	5.983 \| good	25.601 \| good	16.925 \| good	0.571 \| good	10.764 \| good	0.278 \| good
2026-07-23T09:00:00.000Z	27 \| good	4.951 \| good	27.803 \| good	13.821 \| good	0.642 \| good	11.982 \| good	0.235 \| good
2026-07-23T10:00:00.000Z	31 \| good	4.918 \| good	33.583 \| good	13.937 \| good	0.594 \| good	12.8 \| good	0.252 \| good
2026-07-23T11:00:00.000Z	38 \| good	7.166 \| good	28.574 \| good	11.508 \| good	0.78 \| good	13.78 \| good	0.235 \| good
2026-07-23T12:00:00.000Z	44 \| good	8.03 \| good	26.941 \| good	11.407 \| good	0.602 \| good	13.046 \| good	0.281 \| good
2026-07-23T13:00:00.000Z	44 \| good	8.044 \| good	26.258 \| good	10.535 \| good	0.601 \| good	13.046 \| good	0.281 \| good
2026-07-23T14:00:00.000Z	44 \| good	8.45 \| good	28.174 \| good	11.051 \| good	0.695 \| good	12.666 \| good	0.423 \| good
2026-07-23T15:00:00.000Z	49 \| good	9.337 \| good	35.164 \| good	16.255 \| good	0.894 \| good	12.956 \| good	0.445 \| good
2026-07-23T16:00:00.000Z	49 \| good	9.028 \| good	41.193 \| good	16.538 \| good	0.93 \| good	14.574 \| good	0.407 \| good
2026-07-23T17:00:00.000Z	56 \| moderate	11.605 \| good	61.363 \| fine	29.652 \| good	0.831 \| good	15.775 \| good	0.34 \| good
2026-07-23T18:00:00.000Z	61 \| moderate	11.232 \| good	75.486 \| fine	38.467 \| good	0.879 \| good	16.323 \| good	0.351 \| good
2026-07-23T19:00:00.000Z	58 \| moderate	13.12 \| fine	63.198 \| fine	53.726 \| good	0.799 \| good	13.178 \| good	0.32 \| good
2026-07-23T20:00:00.000Z	77 \| moderate	12.658 \| fine	60.71 \| fine	63.224 \| fine	0.764 \| good	10.724 \| good	0.301 \| good
2026-07-23T21:00:00.000Z	108 \| sensitive	14.311 \| fine	63.505 \| fine	73.371 \| moderate	0.825 \| good	10.561 \| good	0.278 \| good
2026-07-23T22:00:00.000Z	143 \| sensitive	15.549 \| fine	62.086 \| fine	83.186 \| moderate	0.971 \| good	9.615 \| good	0.286 \| good
2026-07-23T22:00:00.000Z	143 \| sensitive	15.549 \| fine	62.086 \| fine	83.186 \| moderate	0.971 \| good	9.615 \| good	0.286 \| good
2026-07-23T23:00:00.000Z	143 \| sensitive	17.101 \| fine	76.562 \| fine	83.456 \| moderate	1.267 \| good	3.512 \| good	0.128 \| good
2026-07-24T00:00:00.000Z	100 \| moderate	13.197 \| fine	59.024 \| fine	70.272 \| fine	1.309 \| good	3.501 \| good	0.128 \| good
2026-07-24T01:00:00.000Z	54 \| moderate	11.432 \| good	51.063 \| good	56.434 \| fine	1.351 \| good	4.088 \| good	0.129 \| good
2026-07-24T02:00:00.000Z	54 \| moderate	11.176 \| good	49.44 \| good	49.103 \| good	1.397 \| good	5.476 \| good	0.131 \| good
2026-07-24T03:00:00.000Z	52 \| moderate	9.718 \| good	43.003 \| good	38.05 \| good	1.423 \| good	7.585 \| good	0.134 \| good
2026-07-24T04:00:00.000Z	52 \| moderate	9.934 \| good	44.313 \| good	32.231 \| good	1.447 \| good	9.272 \| good	0.137 \| good
2026-07-24T05:00:00.000Z	56 \| moderate	12.135 \| fine	54.463 \| good	26.051 \| good	1.441 \| good	10.638 \| good	0.139 \| good
2026-07-24T06:00:00.000Z	58 \| moderate	12.702 \| fine	56.727 \| fine	22.954 \| good	1.417 \| good	12.355 \| good	0.143 \| good
2026-07-24T07:00:00.000Z	54 \| moderate	11.141 \| good	49.307 \| good	22.054 \| good	1.366 \| good	14.248 \| good	0.149 \| good
2026-07-24T08:00:00.000Z	56 \| moderate	11.956 \| good	53.666 \| good	19.092 \| good	1.287 \| good	14.722 \| good	0.153 \| good
2026-07-24T09:00:00.000Z	58 \| moderate	12.583 \| fine	56.115 \| fine	16.797 \| good	1.232 \| good	15.315 \| good	0.156 \| good
2026-07-24T10:00:00.000Z	58 \| moderate	13.417 \| fine	59.964 \| fine	11.547 \| good	1.212 \| good	16.386 \| good	0.16 \| good
2026-07-24T11:00:00.000Z	56 \| moderate	11.976 \| good	53.773 \| good	10 \| good	1.219 \| good	17.626 \| good	0.166 \| good
2026-07-24T12:00:00.000Z	56 \| moderate	11.792 \| good	52.778 \| good	9.897 \| good	1.22 \| good	18.473 \| good	0.171 \| good
2026-07-24T13:00:00.000Z	56 \| moderate	12.235 \| fine	55.385 \| fine	9.342 \| good	1.222 \| good	18.728 \| good	0.176 \| good
2026-07-24T14:00:00.000Z	58 \| moderate	13.487 \| fine	59.982 \| fine	12.756 \| good	1.203 \| good	16.157 \| good	0.182 \| good
2026-07-24T15:00:00.000Z	62 \| moderate	14.509 \| fine	65.152 \| fine	18.508 \| good	1.15 \| good	9.797 \| good	0.147 \| good
2026-07-24T16:00:00.000Z	66 \| moderate	17.443 \| fine	77.37 \| fine	28.489 \| good	1.078 \| good	7.451 \| good	0.137 \| good
2026-07-24T17:00:00.000Z	71 \| moderate	20.282 \| fine	89.386 \| fine	44.185 \| good	1.087 \| good	6.317 \| good	0.134 \| good
2026-07-24T18:00:00.000Z	87 \| moderate	21.194 \| fine	93.112 \| fine	66.166 \| fine	1.105 \| good	5.464 \| good	0.133 \| good
2026-07-24T19:00:00.000Z	136 \| sensitive	18.734 \| fine	82.372 \| fine	81.479 \| moderate	1.107 \| good	4.568 \| good	0.131 \| good
2026-07-24T20:00:00.000Z	147 \| sensitive	13.754 \| fine	61.233 \| fine	84.06 \| moderate	1.098 \| good	3.823 \| good	0.128 \| good
2026-07-24T21:00:00.000Z	133 \| sensitive	10.977 \| good	48.322 \| good	79.994 \| moderate	1.102 \| good	3.377 \| good	0.125 \| good
2026-07-24T22:00:00.000Z	108 \| sensitive	11.96 \| good	53.497 \| good	73.49 \| moderate	1.121 \| good	3.103 \| good	0.122 \| good
2026-07-24T23:00:00.000Z	90 \| moderate	10.734 \| good	47.655 \| good	67.455 \| fine	1.137 \| good	2.977 \| good	0.12 \| good
2026-07-25T00:00:00.000Z	77 \| moderate	10.812 \| good	47.677 \| good	63.33 \| fine	1.152 \| good	3.125 \| good	0.118 \| good
2026-07-25T01:00:00.000Z	56 \| moderate	11.98 \| good	53.572 \| good	55.481 \| fine	1.174 \| good	3.587 \| good	0.117 \| good
2026-07-25T02:00:00.000Z	54 \| moderate	10.792 \| good	48.111 \| good	44.077 \| good	1.197 \| good	4.687 \| good	0.117 \| good
2026-07-25T03:00:00.000Z	56 \| moderate	12.415 \| fine	55.579 \| fine	36.319 \| good	1.232 \| good	6.471 \| good	0.118 \| good
2026-07-25T04:00:00.000Z	52 \| moderate	10.359 \| good	45.826 \| good	29.418 \| good	1.261 \| good	7.967 \| good	0.121 \| good
2026-07-25T05:00:00.000Z	56 \| moderate	11.51 \| good	50.803 \| good	24.505 \| good	1.269 \| good	9.249 \| good	0.124 \| good
2026-07-25T06:00:00.000Z	54 \| moderate	10.682 \| good	47.219 \| good	20.172 \| good	1.262 \| good	10.952 \| good	0.128 \| good
2026-07-25T07:00:00.000Z	49 \| good	8.738 \| good	38.283 \| good	18.292 \| good	1.229 \| good	12.664 \| good	0.134 \| good
2026-07-25T08:00:00.000Z	52 \| moderate	9.937 \| good	43.752 \| good	15.776 \| good	1.188 \| good	13.866 \| good	0.14 \| good
2026-07-25T09:00:00.000Z	54 \| moderate	11.09 \| good	49.364 \| good	13.011 \| good	1.175 \| good	15.473 \| good	0.147 \| good
2026-07-25T10:00:00.000Z	56 \| moderate	12.008 \| good	53.908 \| good	11.09 \| good	1.186 \| good	16.856 \| good	0.153 \| good
2026-07-25T11:00:00.000Z	49 \| good	9.469 \| good	42.204 \| good	10.857 \| good	1.185 \| good	18.194 \| good	0.159 \| good
2026-07-25T12:00:00.000Z	49 \| good	8.525 \| good	37.604 \| good	9.495 \| good	1.175 \| good	20.186 \| good	0.168 \| good
2026-07-25T13:00:00.000Z	49 \| good	8.746 \| good	38.242 \| good	9.296 \| good	1.17 \| good	21.078 \| good	0.177 \| good
2026-07-25T14:00:00.000Z	54 \| moderate	11.27 \| good	50.008 \| good	11.64 \| good	1.178 \| good	18.021 \| good	0.186 \| good
2026-07-25T15:00:00.000Z	58 \| moderate	13.196 \| fine	59.562 \| fine	17.838 \| good	1.243 \| good	11.25 \| good	0.149 \| good
2026-07-25T16:00:00.000Z	58 \| moderate	13.436 \| fine	60.532 \| fine	27.528 \| good	1.254 \| good	8.368 \| good	0.135 \| good
2026-07-25T17:00:00.000Z	64 \| moderate	15.644 \| fine	69.545 \| fine	39.881 \| good	1.265 \| good	7.049 \| good	0.131 \| good
2026-07-25T18:00:00.000Z	66 \| moderate	16.592 \| fine	73.588 \| fine	52.405 \| good	1.247 \| good	5.949 \| good	0.128 \| good
2026-07-25T19:00:00.000Z	77 \| moderate	11.85 \| good	53.228 \| good	62.53 \| fine	1.225 \| good	4.882 \| good	0.126 \| good
2026-07-25T20:00:00.000Z	100 \| moderate	11.404 \| good	50.74 \| good	69.523 \| fine	1.206 \| good	4.074 \| good	0.123 \| good
2026-07-25T21:00:00.000Z	136 \| sensitive	12.183 \| fine	54.203 \| good	80.742 \| moderate	1.222 \| good	3.56 \| good	0.121 \| good
2026-07-25T22:00:00.000Z	143 \| sensitive	15.72 \| fine	70.431 \| fine	82.713 \| moderate	1.263 \| good	3.181 \| good	0.12 \| 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)

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Air quality in nearby cities

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

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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?

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