What is the current concentration of PM10 in Castle Pines, Colorado?

The current PM10 concentration at Castle Pines, Colorado is 54.319 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Castle Pines, Colorado?

The current sulfur dioxide (SO2) concentration at Castle Pines, Colorado is 0.455 ppb.

What is the current concentration of ozone (O3) in Castle Pines, Colorado?

The current ozone (O3) concentration at Castle Pines, Colorado is 49.106 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Castle Pines, Colorado?

The current nitrogen dioxide (NO2) concentration at Castle Pines, Colorado is 12.763 ppb.

Castle Pines, Colorado live air quality index now

Name: Live air pollution levels in Castle Pines, Colorado today
Creator: Ambee

Stay updated with real-time air quality in Castle Pines, Colorado 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

Castle Pines, Colorado

Last updated: ... (Local time)

Major air pollutants in Castle Pines, Colorado

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

14.34 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

64.91 μg/m³

155

255

425

605+

Ozone (O₃)

43.67 ppb

201

201+

Sulfur Dioxide (SO₂)

0.86 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

14.39 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.29 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

Castle Pines, Colorado

Get Live Pollen Counts

Castle Pines, Colorado

Scroll To Air Quality Map

Track live Castle Pines, Colorado air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-09-05T04:00:00.000Z	110 \| sensitive	39.159 \| moderate	127.93 \| fine	51.409 \| good	0.392 \| good	9.941 \| good	0.288 \| good
2025-09-05T05:00:00.000Z	122 \| sensitive	43.975 \| moderate	150.766 \| fine	48.454 \| good	0.392 \| good	8.536 \| good	0.255 \| good
2025-09-05T06:00:00.000Z	110 \| sensitive	39.141 \| moderate	102.146 \| fine	46.079 \| good	0.383 \| good	5.534 \| good	0.255 \| good
2025-09-05T07:00:00.000Z	96 \| moderate	33.098 \| fine	109.191 \| fine	41.99 \| good	0.235 \| good	5.307 \| good	0.207 \| good
2025-09-05T08:00:00.000Z	90 \| moderate	30.37 \| fine	111.472 \| fine	38.705 \| good	0.258 \| good	5.236 \| good	0.207 \| good
2025-09-05T09:00:00.000Z	90 \| moderate	29.711 \| fine	109.606 \| fine	36.244 \| good	0.228 \| good	6.259 \| good	0.255 \| good
2025-09-05T10:00:00.000Z	84 \| moderate	27.424 \| fine	81.032 \| fine	33.349 \| good	0.314 \| good	6.421 \| good	0.2 \| good
2025-09-05T11:00:00.000Z	86 \| moderate	27.808 \| fine	104.505 \| fine	32.03 \| good	0.265 \| good	6.24 \| good	0.233 \| good
2025-09-05T12:00:00.000Z	82 \| moderate	26.465 \| fine	96.94 \| fine	30.919 \| good	0.266 \| good	7.354 \| good	0.233 \| good
2025-09-05T13:00:00.000Z	84 \| moderate	26.954 \| fine	98.592 \| fine	29.347 \| good	0.222 \| good	6.858 \| good	0.233 \| good
2025-09-05T14:00:00.000Z	79 \| moderate	24.311 \| fine	75.371 \| fine	29.587 \| good	0.169 \| good	6.705 \| good	0.2 \| good
2025-09-05T15:00:00.000Z	77 \| moderate	22.603 \| fine	88.694 \| fine	29.871 \| good	0.183 \| good	6.641 \| good	0.255 \| good
2025-09-05T16:00:00.000Z	77 \| moderate	22.77 \| fine	83.025 \| fine	31.478 \| good	0.294 \| good	6.229 \| good	0.288 \| good
2025-09-05T17:00:00.000Z	75 \| moderate	22.086 \| fine	80.779 \| fine	31.377 \| good	0.234 \| good	5.412 \| good	0.248 \| good
2025-09-05T18:00:00.000Z	77 \| moderate	22.903 \| fine	63.298 \| fine	32.381 \| good	0.24 \| good	5.771 \| good	0.255 \| good
2025-09-05T19:00:00.000Z	77 \| moderate	23.06 \| fine	67.147 \| fine	32.799 \| good	0.362 \| good	6.838 \| good	0.248 \| good
2025-09-05T20:00:00.000Z	81 \| moderate	25.003 \| fine	92.711 \| fine	34.258 \| good	0.285 \| good	8.884 \| good	0.335 \| good
2025-09-05T21:00:00.000Z	77 \| moderate	23.343 \| fine	83.862 \| fine	32.548 \| good	0.309 \| good	8.696 \| good	0.361 \| good
2025-09-05T22:00:00.000Z	77 \| moderate	23.11 \| fine	82.21 \| fine	33.277 \| good	0.352 \| good	8.164 \| good	0.248 \| good
2025-09-05T23:00:00.000Z	77 \| moderate	22.521 \| fine	84.955 \| fine	32.402 \| good	0.328 \| good	8.33 \| good	0.255 \| good
2025-09-06T00:00:00.000Z	71 \| moderate	20.099 \| fine	74.197 \| fine	32.412 \| good	0.351 \| good	10.463 \| good	0.302 \| good
2025-09-06T01:00:00.000Z	73 \| moderate	20.659 \| fine	79.717 \| fine	31.63 \| good	0.352 \| good	12.763 \| good	0.398 \| good
2025-09-06T02:00:00.000Z	71 \| moderate	19.593 \| fine	63.258 \| fine	29.625 \| good	0.279 \| good	12.535 \| good	0.445 \| good
2025-09-06T03:00:00.000Z	71 \| moderate	20.328 \| fine	77.444 \| fine	28.806 \| good	0.192 \| good	14.287 \| good	0.485 \| good
2025-09-06T04:00:00.000Z	71 \| moderate	19.713 \| fine	78.412 \| fine	28.754 \| good	0.366 \| good	12.453 \| good	0.39 \| good
2025-09-06T05:00:00.000Z	71 \| moderate	19.567 \| fine	80.529 \| fine	26.527 \| good	0.366 \| good	12.916 \| good	0.525 \| good
2025-09-06T06:00:00.000Z	73 \| moderate	21.03 \| fine	78.034 \| fine	26.559 \| good	0.255 \| good	18.768 \| good	0.566 \| good
2025-09-06T07:00:00.000Z	73 \| moderate	21.066 \| fine	67.634 \| fine	25.939 \| good	0.352 \| good	20.052 \| good	0.566 \| good
2025-09-06T08:00:00.000Z	73 \| moderate	20.535 \| fine	80.039 \| fine	23.142 \| good	0.376 \| good	20.01 \| good	0.478 \| good
2025-09-06T09:00:00.000Z	75 \| moderate	21.578 \| fine	80.461 \| fine	23.805 \| good	0.258 \| good	15.71 \| good	0.431 \| good
2025-09-06T10:00:00.000Z	73 \| moderate	20.695 \| fine	79.414 \| fine	21.238 \| good	0.229 \| good	12.967 \| good	0.361 \| good
2025-09-06T11:00:00.000Z	73 \| moderate	20.999 \| fine	81.101 \| fine	22.239 \| good	0.291 \| good	11 \| good	0.281 \| good
2025-09-06T12:00:00.000Z	75 \| moderate	21.526 \| fine	58.058 \| fine	22.657 \| good	0.34 \| good	11.258 \| good	0.281 \| good
2025-09-06T13:00:00.000Z	73 \| moderate	21.005 \| fine	52.049 \| good	20.969 \| good	0.272 \| good	13.375 \| good	0.391 \| good
2025-09-06T14:00:00.000Z	73 \| moderate	21.341 \| fine	78.57 \| fine	20.668 \| good	0.857 \| good	14.286 \| good	0.391 \| good
2025-09-06T15:00:00.000Z	75 \| moderate	21.602 \| fine	79.988 \| fine	21.729 \| good	1.073 \| good	13.422 \| good	0.343 \| good
2025-09-06T16:00:00.000Z	75 \| moderate	21.517 \| fine	75.089 \| fine	25.091 \| good	1.152 \| good	12.415 \| good	0.335 \| good
2025-09-06T17:00:00.000Z	71 \| moderate	20.495 \| fine	78.618 \| fine	26.586 \| good	0.587 \| good	9.177 \| good	0.281 \| good
2025-09-06T18:00:00.000Z	69 \| moderate	18.736 \| fine	53.896 \| good	32.664 \| good	0.351 \| good	7.422 \| good	0.288 \| good
2025-09-06T19:00:00.000Z	69 \| moderate	19.242 \| fine	47.198 \| good	39.037 \| good	0.352 \| good	6.511 \| good	0.288 \| good
2025-09-06T20:00:00.000Z	69 \| moderate	19.15 \| fine	52.118 \| good	45.583 \| good	0.287 \| good	6.413 \| good	0.255 \| good
2025-09-06T21:00:00.000Z	67 \| moderate	18.328 \| fine	65.609 \| fine	50.181 \| good	0.288 \| good	8.203 \| good	0.302 \| good
2025-09-06T22:00:00.000Z	67 \| moderate	18.346 \| fine	45.277 \| good	53.384 \| good	0.309 \| good	7.526 \| good	0.302 \| good
2025-09-06T23:00:00.000Z	71 \| moderate	20.484 \| fine	54.602 \| good	54.69 \| good	0.279 \| good	9.175 \| good	0.35 \| good
2025-09-07T00:00:00.000Z	73 \| moderate	20.558 \| fine	45.23 \| good	55.113 \| fine	0.333 \| good	10.104 \| good	0.35 \| good
2025-09-07T01:00:00.000Z	67 \| moderate	18.357 \| fine	52.197 \| good	51.936 \| good	0.396 \| good	12.332 \| good	0.406 \| good
2025-09-07T02:00:00.000Z	73 \| moderate	21.093 \| fine	54.319 \| good	49.106 \| good	0.455 \| good	12.763 \| good	0.441 \| good
2025-09-07T03:00:00.000Z	60 \| moderate	14.342 \| fine	64.907 \| fine	43.667 \| good	0.861 \| good	14.391 \| good	0.29 \| good
2025-09-07T04:00:00.000Z	56 \| moderate	12.113 \| fine	54.26 \| good	39.694 \| good	0.776 \| good	16.544 \| good	0.311 \| good
2025-09-07T05:00:00.000Z	56 \| moderate	12.113 \| fine	54.442 \| good	36.588 \| good	0.754 \| good	15.714 \| good	0.303 \| good
2025-09-07T06:00:00.000Z	56 \| moderate	12.219 \| fine	54.937 \| good	36.695 \| good	0.731 \| good	14.885 \| good	0.295 \| good
2025-09-07T07:00:00.000Z	56 \| moderate	11.779 \| good	52.159 \| good	36.716 \| good	0.665 \| good	12.961 \| good	0.275 \| good
2025-09-07T08:00:00.000Z	54 \| moderate	10.68 \| good	47.519 \| good	36.704 \| good	0.598 \| good	11.038 \| good	0.254 \| good
2025-09-07T09:00:00.000Z	54 \| moderate	10.6 \| good	47.03 \| good	36.084 \| good	0.532 \| good	9.114 \| good	0.234 \| good
2025-09-07T10:00:00.000Z	54 \| moderate	10.644 \| good	47.256 \| good	33.281 \| good	0.487 \| good	8.441 \| good	0.222 \| good
2025-09-07T11:00:00.000Z	58 \| moderate	12.654 \| fine	57.162 \| fine	34.245 \| good	0.442 \| good	7.768 \| good	0.21 \| good
2025-09-07T12:00:00.000Z	56 \| moderate	12.037 \| good	53.206 \| good	32.576 \| good	0.398 \| good	7.095 \| good	0.199 \| good
2025-09-07T13:00:00.000Z	58 \| moderate	12.709 \| fine	57.566 \| fine	28.769 \| good	0.467 \| good	7.021 \| good	0.208 \| good
2025-09-07T14:00:00.000Z	60 \| moderate	13.512 \| fine	60.419 \| fine	31.333 \| good	0.537 \| good	6.947 \| good	0.216 \| good
2025-09-07T15:00:00.000Z	60 \| moderate	13.918 \| fine	62.013 \| fine	35.436 \| good	0.607 \| good	6.873 \| good	0.225 \| good
2025-09-07T16:00:00.000Z	60 \| moderate	13.988 \| fine	62.508 \| fine	41.07 \| good	0.747 \| good	5.199 \| good	0.209 \| good
2025-09-07T17:00:00.000Z	60 \| moderate	13.504 \| fine	61.247 \| fine	47.262 \| good	0.888 \| good	3.526 \| good	0.193 \| good
2025-09-07T18:00:00.000Z	58 \| moderate	13.197 \| fine	59.259 \| fine	50.731 \| good	1.028 \| good	1.852 \| good	0.177 \| good
2025-09-07T19:00:00.000Z	56 \| moderate	12.368 \| fine	56.117 \| fine	53.606 \| good	0.905 \| good	1.674 \| good	0.172 \| good
2025-09-07T20:00:00.000Z	54 \| moderate	11.05 \| good	48.814 \| good	54.49 \| good	0.781 \| good	1.496 \| good	0.167 \| good
2025-09-07T21:00:00.000Z	58 \| moderate	10.108 \| good	44.732 \| good	56.889 \| fine	0.658 \| good	1.318 \| good	0.161 \| good
2025-09-07T22:00:00.000Z	51 \| moderate	9.226 \| good	41.081 \| good	55.069 \| fine	0.667 \| good	1.751 \| good	0.163 \| good
2025-09-07T23:00:00.000Z	52 \| moderate	9.966 \| good	44.457 \| good	51.37 \| good	0.675 \| good	2.184 \| good	0.164 \| good
2025-09-08T00:00:00.000Z	49 \| good	8.618 \| good	37.975 \| good	51.154 \| good	0.684 \| good	2.617 \| good	0.165 \| good
2025-09-08T01:00:00.000Z	56 \| moderate	12.191 \| fine	54.135 \| good	49.422 \| good	0.684 \| good	6.825 \| good	0.2 \| good
2025-09-08T02:00:00.000Z	56 \| moderate	12.397 \| fine	54.941 \| good	45.846 \| good	0.683 \| good	11.033 \| good	0.234 \| good
2025-09-08T03:00:00.000Z	56 \| moderate	12.054 \| good	53.456 \| good	43.222 \| good	0.683 \| good	15.241 \| good	0.268 \| good
2025-09-08T04:00:00.000Z	56 \| moderate	11.814 \| good	52.07 \| good	43.443 \| good	0.63 \| good	14.917 \| good	0.263 \| good
2025-09-08T05:00:00.000Z	52 \| moderate	10.483 \| good	46.225 \| good	42.557 \| good	0.578 \| good	14.592 \| good	0.258 \| good
2025-09-08T06:00:00.000Z	52 \| moderate	10.02 \| good	44.408 \| good	40.653 \| good	0.525 \| good	14.268 \| good	0.253 \| good
2025-09-08T07:00:00.000Z	52 \| moderate	10.257 \| good	45.429 \| good	40.856 \| good	0.475 \| good	12.467 \| good	0.232 \| good
2025-09-08T08:00:00.000Z	54 \| moderate	10.871 \| good	48.297 \| good	38.653 \| good	0.426 \| good	10.665 \| good	0.212 \| good
2025-09-08T09:00:00.000Z	54 \| moderate	10.884 \| good	48.375 \| good	37.701 \| good	0.376 \| good	8.863 \| good	0.191 \| good
2025-09-08T10:00:00.000Z	54 \| moderate	10.671 \| good	47.365 \| good	36.464 \| good	0.355 \| good	7.767 \| good	0.175 \| good
2025-09-08T11:00:00.000Z	54 \| moderate	10.853 \| good	48.121 \| good	34.498 \| good	0.333 \| good	6.671 \| good	0.159 \| good
2025-09-08T12:00:00.000Z	54 \| moderate	10.972 \| good	48.73 \| good	32.251 \| good	0.311 \| good	5.574 \| good	0.143 \| good
2025-09-08T13:00:00.000Z	54 \| moderate	11.14 \| good	49.357 \| good	32.036 \| good	0.355 \| good	5.542 \| good	0.15 \| good
2025-09-08T14:00:00.000Z	52 \| moderate	10.489 \| good	46.58 \| good	33.409 \| good	0.399 \| good	5.51 \| good	0.157 \| good
2025-09-08T15:00:00.000Z	49 \| good	8.721 \| good	38.45 \| good	38.656 \| good	0.443 \| good	5.477 \| good	0.164 \| good
2025-09-08T16:00:00.000Z	44 \| good	8.375 \| good	37.068 \| good	43.847 \| good	0.456 \| good	3.902 \| good	0.142 \| good
2025-09-08T17:00:00.000Z	49 \| good	9.4 \| good	42.102 \| good	45.869 \| good	0.468 \| good	2.327 \| good	0.12 \| good
2025-09-08T18:00:00.000Z	52 \| moderate	10.397 \| good	46.104 \| good	48.747 \| good	0.481 \| good	0.752 \| good	0.099 \| good
2025-09-08T19:00:00.000Z	54 \| moderate	10.787 \| good	47.808 \| good	54.948 \| good	0.477 \| good	0.725 \| good	0.098 \| good
2025-09-08T20:00:00.000Z	54 \| moderate	10.717 \| good	47.595 \| good	55.667 \| fine	0.473 \| good	0.697 \| good	0.097 \| good
2025-09-08T21:00:00.000Z	51 \| moderate	9.437 \| good	42.134 \| good	54.64 \| good	0.47 \| good	0.67 \| good	0.096 \| good
2025-09-08T22:00:00.000Z	50 \| good	8.92 \| good	38.972 \| good	54.413 \| good	0.486 \| good	1.096 \| good	0.1 \| good
2025-09-08T23:00:00.000Z	52 \| moderate	9.718 \| good	43.028 \| good	52.105 \| good	0.502 \| good	1.523 \| good	0.103 \| good
2025-09-09T00:00:00.000Z	77 \| moderate	5.075 \| good	8.554 \| good	63.043 \| fine	0.527 \| good	1.978 \| good	0.106 \| good
2025-09-09T01:00:00.000Z	58 \| moderate	12.707 \| fine	56.732 \| fine	54.91 \| good	0.569 \| good	7.36 \| good	0.153 \| good
2025-09-09T02:00:00.000Z	46 \| good	8.205 \| good	36.094 \| good	49.82 \| good	0.619 \| good	12.772 \| good	0.2 \| good
2025-09-09T03:00:00.000Z	44 \| good	6.799 \| good	30.222 \| good	47.215 \| good	0.669 \| good	18.183 \| good	0.247 \| good

Castle Pines

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Castle Pines, Colorado air quality map: Track AQI near you

0.40ppm

How accurate is Colorado, USA air quality data?

Air quality data and pollutant measurements for Colorado, 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 Castle Pines, Colorado updated?

The air quality for Castle Pines, Colorado is updated every hour.

When was the worst air quality at Castle Pines, Colorado in the last 24 hrs?

The worst air quality in Castle Pines, Colorado in the last 24 hours was observed at 04:00:00 on 2025-09-06.

When was the best air quality at Castle Pines, Colorado in the last 24 hrs?

In the last 24 hrs, the best air quality in Castle Pines, Colorado was observed at 01:00:00 on 2025-09-07.

What is the current air quality in Castle Pines, Colorado?

The current air quality in Castle Pines, Colorado is 73, categorized as Moderate based on real-time data.

What pollutant is the most common in Castle Pines, Colorado?

The most common pollutant in Castle Pines, Colorado is PM2.5.

What should I do if the air quality in Castle Pines, Colorado is poor?

If the air quality in Castle Pines, Colorado is poor, consider staying indoors and wearing a mask to protect yourself.

What is the current concentration of PM_2.5 in Castle Pines, Colorado?

The current PM_2.5 concentration at Castle Pines, Colorado is 21.093 μg/m³.

What is the current concentration of PM₁₀ in Castle Pines, Colorado?

The current PM₁₀ concentration at Castle Pines, Colorado is 54.319 μg/m³.

What is the current concentration of carbon monoxide (CO) in Castle Pines, Colorado?

The current carbon monoxide (CO) concentration at Castle Pines, Colorado is 0.441 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Castle Pines, Colorado?

The current sulfur dioxide (SO₂) concentration at Castle Pines, Colorado is 0.455 ppb.

What is the current concentration of ozone (O₃) in Castle Pines, Colorado?

The current ozone (O₃) concentration at Castle Pines, Colorado is 49.106 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Castle Pines, Colorado?

The current nitrogen dioxide (NO₂) concentration at Castle Pines, Colorado is 12.763 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-09-05T04:00:00.000Z	110 \| sensitive	39.159 \| moderate	127.93 \| fine	51.409 \| good	0.392 \| good	9.941 \| good	0.288 \| good
2025-09-05T05:00:00.000Z	122 \| sensitive	43.975 \| moderate	150.766 \| fine	48.454 \| good	0.392 \| good	8.536 \| good	0.255 \| good
2025-09-05T06:00:00.000Z	110 \| sensitive	39.141 \| moderate	102.146 \| fine	46.079 \| good	0.383 \| good	5.534 \| good	0.255 \| good
2025-09-05T07:00:00.000Z	96 \| moderate	33.098 \| fine	109.191 \| fine	41.99 \| good	0.235 \| good	5.307 \| good	0.207 \| good
2025-09-05T08:00:00.000Z	90 \| moderate	30.37 \| fine	111.472 \| fine	38.705 \| good	0.258 \| good	5.236 \| good	0.207 \| good
2025-09-05T09:00:00.000Z	90 \| moderate	29.711 \| fine	109.606 \| fine	36.244 \| good	0.228 \| good	6.259 \| good	0.255 \| good
2025-09-05T10:00:00.000Z	84 \| moderate	27.424 \| fine	81.032 \| fine	33.349 \| good	0.314 \| good	6.421 \| good	0.2 \| good
2025-09-05T11:00:00.000Z	86 \| moderate	27.808 \| fine	104.505 \| fine	32.03 \| good	0.265 \| good	6.24 \| good	0.233 \| good
2025-09-05T12:00:00.000Z	82 \| moderate	26.465 \| fine	96.94 \| fine	30.919 \| good	0.266 \| good	7.354 \| good	0.233 \| good
2025-09-05T13:00:00.000Z	84 \| moderate	26.954 \| fine	98.592 \| fine	29.347 \| good	0.222 \| good	6.858 \| good	0.233 \| good
2025-09-05T14:00:00.000Z	79 \| moderate	24.311 \| fine	75.371 \| fine	29.587 \| good	0.169 \| good	6.705 \| good	0.2 \| good
2025-09-05T15:00:00.000Z	77 \| moderate	22.603 \| fine	88.694 \| fine	29.871 \| good	0.183 \| good	6.641 \| good	0.255 \| good
2025-09-05T16:00:00.000Z	77 \| moderate	22.77 \| fine	83.025 \| fine	31.478 \| good	0.294 \| good	6.229 \| good	0.288 \| good
2025-09-05T17:00:00.000Z	75 \| moderate	22.086 \| fine	80.779 \| fine	31.377 \| good	0.234 \| good	5.412 \| good	0.248 \| good
2025-09-05T18:00:00.000Z	77 \| moderate	22.903 \| fine	63.298 \| fine	32.381 \| good	0.24 \| good	5.771 \| good	0.255 \| good
2025-09-05T19:00:00.000Z	77 \| moderate	23.06 \| fine	67.147 \| fine	32.799 \| good	0.362 \| good	6.838 \| good	0.248 \| good
2025-09-05T20:00:00.000Z	81 \| moderate	25.003 \| fine	92.711 \| fine	34.258 \| good	0.285 \| good	8.884 \| good	0.335 \| good
2025-09-05T21:00:00.000Z	77 \| moderate	23.343 \| fine	83.862 \| fine	32.548 \| good	0.309 \| good	8.696 \| good	0.361 \| good
2025-09-05T22:00:00.000Z	77 \| moderate	23.11 \| fine	82.21 \| fine	33.277 \| good	0.352 \| good	8.164 \| good	0.248 \| good
2025-09-05T23:00:00.000Z	77 \| moderate	22.521 \| fine	84.955 \| fine	32.402 \| good	0.328 \| good	8.33 \| good	0.255 \| good
2025-09-06T00:00:00.000Z	71 \| moderate	20.099 \| fine	74.197 \| fine	32.412 \| good	0.351 \| good	10.463 \| good	0.302 \| good
2025-09-06T01:00:00.000Z	73 \| moderate	20.659 \| fine	79.717 \| fine	31.63 \| good	0.352 \| good	12.763 \| good	0.398 \| good
2025-09-06T02:00:00.000Z	71 \| moderate	19.593 \| fine	63.258 \| fine	29.625 \| good	0.279 \| good	12.535 \| good	0.445 \| good
2025-09-06T03:00:00.000Z	71 \| moderate	20.328 \| fine	77.444 \| fine	28.806 \| good	0.192 \| good	14.287 \| good	0.485 \| good
2025-09-06T04:00:00.000Z	71 \| moderate	19.713 \| fine	78.412 \| fine	28.754 \| good	0.366 \| good	12.453 \| good	0.39 \| good
2025-09-06T05:00:00.000Z	71 \| moderate	19.567 \| fine	80.529 \| fine	26.527 \| good	0.366 \| good	12.916 \| good	0.525 \| good
2025-09-06T06:00:00.000Z	73 \| moderate	21.03 \| fine	78.034 \| fine	26.559 \| good	0.255 \| good	18.768 \| good	0.566 \| good
2025-09-06T07:00:00.000Z	73 \| moderate	21.066 \| fine	67.634 \| fine	25.939 \| good	0.352 \| good	20.052 \| good	0.566 \| good
2025-09-06T08:00:00.000Z	73 \| moderate	20.535 \| fine	80.039 \| fine	23.142 \| good	0.376 \| good	20.01 \| good	0.478 \| good
2025-09-06T09:00:00.000Z	75 \| moderate	21.578 \| fine	80.461 \| fine	23.805 \| good	0.258 \| good	15.71 \| good	0.431 \| good
2025-09-06T10:00:00.000Z	73 \| moderate	20.695 \| fine	79.414 \| fine	21.238 \| good	0.229 \| good	12.967 \| good	0.361 \| good
2025-09-06T11:00:00.000Z	73 \| moderate	20.999 \| fine	81.101 \| fine	22.239 \| good	0.291 \| good	11 \| good	0.281 \| good
2025-09-06T12:00:00.000Z	75 \| moderate	21.526 \| fine	58.058 \| fine	22.657 \| good	0.34 \| good	11.258 \| good	0.281 \| good
2025-09-06T13:00:00.000Z	73 \| moderate	21.005 \| fine	52.049 \| good	20.969 \| good	0.272 \| good	13.375 \| good	0.391 \| good
2025-09-06T14:00:00.000Z	73 \| moderate	21.341 \| fine	78.57 \| fine	20.668 \| good	0.857 \| good	14.286 \| good	0.391 \| good
2025-09-06T15:00:00.000Z	75 \| moderate	21.602 \| fine	79.988 \| fine	21.729 \| good	1.073 \| good	13.422 \| good	0.343 \| good
2025-09-06T16:00:00.000Z	75 \| moderate	21.517 \| fine	75.089 \| fine	25.091 \| good	1.152 \| good	12.415 \| good	0.335 \| good
2025-09-06T17:00:00.000Z	71 \| moderate	20.495 \| fine	78.618 \| fine	26.586 \| good	0.587 \| good	9.177 \| good	0.281 \| good
2025-09-06T18:00:00.000Z	69 \| moderate	18.736 \| fine	53.896 \| good	32.664 \| good	0.351 \| good	7.422 \| good	0.288 \| good
2025-09-06T19:00:00.000Z	69 \| moderate	19.242 \| fine	47.198 \| good	39.037 \| good	0.352 \| good	6.511 \| good	0.288 \| good
2025-09-06T20:00:00.000Z	69 \| moderate	19.15 \| fine	52.118 \| good	45.583 \| good	0.287 \| good	6.413 \| good	0.255 \| good
2025-09-06T21:00:00.000Z	67 \| moderate	18.328 \| fine	65.609 \| fine	50.181 \| good	0.288 \| good	8.203 \| good	0.302 \| good
2025-09-06T22:00:00.000Z	67 \| moderate	18.346 \| fine	45.277 \| good	53.384 \| good	0.309 \| good	7.526 \| good	0.302 \| good
2025-09-06T23:00:00.000Z	71 \| moderate	20.484 \| fine	54.602 \| good	54.69 \| good	0.279 \| good	9.175 \| good	0.35 \| good
2025-09-07T00:00:00.000Z	73 \| moderate	20.558 \| fine	45.23 \| good	55.113 \| fine	0.333 \| good	10.104 \| good	0.35 \| good
2025-09-07T01:00:00.000Z	67 \| moderate	18.357 \| fine	52.197 \| good	51.936 \| good	0.396 \| good	12.332 \| good	0.406 \| good
2025-09-07T02:00:00.000Z	73 \| moderate	21.093 \| fine	54.319 \| good	49.106 \| good	0.455 \| good	12.763 \| good	0.441 \| good
2025-09-07T03:00:00.000Z	60 \| moderate	14.342 \| fine	64.907 \| fine	43.667 \| good	0.861 \| good	14.391 \| good	0.29 \| good
2025-09-07T04:00:00.000Z	56 \| moderate	12.113 \| fine	54.26 \| good	39.694 \| good	0.776 \| good	16.544 \| good	0.311 \| good
2025-09-07T05:00:00.000Z	56 \| moderate	12.113 \| fine	54.442 \| good	36.588 \| good	0.754 \| good	15.714 \| good	0.303 \| good
2025-09-07T06:00:00.000Z	56 \| moderate	12.219 \| fine	54.937 \| good	36.695 \| good	0.731 \| good	14.885 \| good	0.295 \| good
2025-09-07T07:00:00.000Z	56 \| moderate	11.779 \| good	52.159 \| good	36.716 \| good	0.665 \| good	12.961 \| good	0.275 \| good
2025-09-07T08:00:00.000Z	54 \| moderate	10.68 \| good	47.519 \| good	36.704 \| good	0.598 \| good	11.038 \| good	0.254 \| good
2025-09-07T09:00:00.000Z	54 \| moderate	10.6 \| good	47.03 \| good	36.084 \| good	0.532 \| good	9.114 \| good	0.234 \| good
2025-09-07T10:00:00.000Z	54 \| moderate	10.644 \| good	47.256 \| good	33.281 \| good	0.487 \| good	8.441 \| good	0.222 \| good
2025-09-07T11:00:00.000Z	58 \| moderate	12.654 \| fine	57.162 \| fine	34.245 \| good	0.442 \| good	7.768 \| good	0.21 \| good
2025-09-07T12:00:00.000Z	56 \| moderate	12.037 \| good	53.206 \| good	32.576 \| good	0.398 \| good	7.095 \| good	0.199 \| good
2025-09-07T13:00:00.000Z	58 \| moderate	12.709 \| fine	57.566 \| fine	28.769 \| good	0.467 \| good	7.021 \| good	0.208 \| good
2025-09-07T14:00:00.000Z	60 \| moderate	13.512 \| fine	60.419 \| fine	31.333 \| good	0.537 \| good	6.947 \| good	0.216 \| good
2025-09-07T15:00:00.000Z	60 \| moderate	13.918 \| fine	62.013 \| fine	35.436 \| good	0.607 \| good	6.873 \| good	0.225 \| good
2025-09-07T16:00:00.000Z	60 \| moderate	13.988 \| fine	62.508 \| fine	41.07 \| good	0.747 \| good	5.199 \| good	0.209 \| good
2025-09-07T17:00:00.000Z	60 \| moderate	13.504 \| fine	61.247 \| fine	47.262 \| good	0.888 \| good	3.526 \| good	0.193 \| good
2025-09-07T18:00:00.000Z	58 \| moderate	13.197 \| fine	59.259 \| fine	50.731 \| good	1.028 \| good	1.852 \| good	0.177 \| good
2025-09-07T19:00:00.000Z	56 \| moderate	12.368 \| fine	56.117 \| fine	53.606 \| good	0.905 \| good	1.674 \| good	0.172 \| good
2025-09-07T20:00:00.000Z	54 \| moderate	11.05 \| good	48.814 \| good	54.49 \| good	0.781 \| good	1.496 \| good	0.167 \| good
2025-09-07T21:00:00.000Z	58 \| moderate	10.108 \| good	44.732 \| good	56.889 \| fine	0.658 \| good	1.318 \| good	0.161 \| good
2025-09-07T22:00:00.000Z	51 \| moderate	9.226 \| good	41.081 \| good	55.069 \| fine	0.667 \| good	1.751 \| good	0.163 \| good
2025-09-07T23:00:00.000Z	52 \| moderate	9.966 \| good	44.457 \| good	51.37 \| good	0.675 \| good	2.184 \| good	0.164 \| good
2025-09-08T00:00:00.000Z	49 \| good	8.618 \| good	37.975 \| good	51.154 \| good	0.684 \| good	2.617 \| good	0.165 \| good
2025-09-08T01:00:00.000Z	56 \| moderate	12.191 \| fine	54.135 \| good	49.422 \| good	0.684 \| good	6.825 \| good	0.2 \| good
2025-09-08T02:00:00.000Z	56 \| moderate	12.397 \| fine	54.941 \| good	45.846 \| good	0.683 \| good	11.033 \| good	0.234 \| good
2025-09-08T03:00:00.000Z	56 \| moderate	12.054 \| good	53.456 \| good	43.222 \| good	0.683 \| good	15.241 \| good	0.268 \| good
2025-09-08T04:00:00.000Z	56 \| moderate	11.814 \| good	52.07 \| good	43.443 \| good	0.63 \| good	14.917 \| good	0.263 \| good
2025-09-08T05:00:00.000Z	52 \| moderate	10.483 \| good	46.225 \| good	42.557 \| good	0.578 \| good	14.592 \| good	0.258 \| good
2025-09-08T06:00:00.000Z	52 \| moderate	10.02 \| good	44.408 \| good	40.653 \| good	0.525 \| good	14.268 \| good	0.253 \| good
2025-09-08T07:00:00.000Z	52 \| moderate	10.257 \| good	45.429 \| good	40.856 \| good	0.475 \| good	12.467 \| good	0.232 \| good
2025-09-08T08:00:00.000Z	54 \| moderate	10.871 \| good	48.297 \| good	38.653 \| good	0.426 \| good	10.665 \| good	0.212 \| good
2025-09-08T09:00:00.000Z	54 \| moderate	10.884 \| good	48.375 \| good	37.701 \| good	0.376 \| good	8.863 \| good	0.191 \| good
2025-09-08T10:00:00.000Z	54 \| moderate	10.671 \| good	47.365 \| good	36.464 \| good	0.355 \| good	7.767 \| good	0.175 \| good
2025-09-08T11:00:00.000Z	54 \| moderate	10.853 \| good	48.121 \| good	34.498 \| good	0.333 \| good	6.671 \| good	0.159 \| good
2025-09-08T12:00:00.000Z	54 \| moderate	10.972 \| good	48.73 \| good	32.251 \| good	0.311 \| good	5.574 \| good	0.143 \| good
2025-09-08T13:00:00.000Z	54 \| moderate	11.14 \| good	49.357 \| good	32.036 \| good	0.355 \| good	5.542 \| good	0.15 \| good
2025-09-08T14:00:00.000Z	52 \| moderate	10.489 \| good	46.58 \| good	33.409 \| good	0.399 \| good	5.51 \| good	0.157 \| good
2025-09-08T15:00:00.000Z	49 \| good	8.721 \| good	38.45 \| good	38.656 \| good	0.443 \| good	5.477 \| good	0.164 \| good
2025-09-08T16:00:00.000Z	44 \| good	8.375 \| good	37.068 \| good	43.847 \| good	0.456 \| good	3.902 \| good	0.142 \| good
2025-09-08T17:00:00.000Z	49 \| good	9.4 \| good	42.102 \| good	45.869 \| good	0.468 \| good	2.327 \| good	0.12 \| good
2025-09-08T18:00:00.000Z	52 \| moderate	10.397 \| good	46.104 \| good	48.747 \| good	0.481 \| good	0.752 \| good	0.099 \| good
2025-09-08T19:00:00.000Z	54 \| moderate	10.787 \| good	47.808 \| good	54.948 \| good	0.477 \| good	0.725 \| good	0.098 \| good
2025-09-08T20:00:00.000Z	54 \| moderate	10.717 \| good	47.595 \| good	55.667 \| fine	0.473 \| good	0.697 \| good	0.097 \| good
2025-09-08T21:00:00.000Z	51 \| moderate	9.437 \| good	42.134 \| good	54.64 \| good	0.47 \| good	0.67 \| good	0.096 \| good
2025-09-08T22:00:00.000Z	50 \| good	8.92 \| good	38.972 \| good	54.413 \| good	0.486 \| good	1.096 \| good	0.1 \| good
2025-09-08T23:00:00.000Z	52 \| moderate	9.718 \| good	43.028 \| good	52.105 \| good	0.502 \| good	1.523 \| good	0.103 \| good
2025-09-09T00:00:00.000Z	77 \| moderate	5.075 \| good	8.554 \| good	63.043 \| fine	0.527 \| good	1.978 \| good	0.106 \| good
2025-09-09T01:00:00.000Z	58 \| moderate	12.707 \| fine	56.732 \| fine	54.91 \| good	0.569 \| good	7.36 \| good	0.153 \| good
2025-09-09T02:00:00.000Z	46 \| good	8.205 \| good	36.094 \| good	49.82 \| good	0.619 \| good	12.772 \| good	0.2 \| good
2025-09-09T03:00:00.000Z	44 \| good	6.799 \| good	30.222 \| good	47.215 \| good	0.669 \| good	18.183 \| good	0.247 \| good

Castle Pines, Colorado live air quality index now

Major air pollutants in Castle Pines, Colorado

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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The Pinery, Colorado

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Frequently asked questions

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What is the current concentration of carbon monoxide (CO) in Castle Pines, Colorado?

What is the current concentration of sulfur dioxide (SO2) in Castle Pines, Colorado?

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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 Castle Pines, Colorado?

What is the current concentration of PM₁₀ in Castle Pines, Colorado?

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What is the current concentration of nitrogen dioxide (NO₂) in Castle Pines, Colorado?