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

The current PM10 concentration at Castle Pines, Colorado is 28.934 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 0.345 ppb.

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

The current ozone (O3) concentration at Castle Pines, Colorado is 27.951 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 19.012 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)

Good

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)

4.93 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

28.93 μg/m³

155

255

425

605+

Ozone (O₃)

27.95 ppb

201

201+

Sulfur Dioxide (SO₂)

0.34 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

19.01 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.36 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

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
2025-10-20T07:00:00.000Z	39 \| good	1.655 \| good	6.011 \| good	42.394 \| good	0.608 \| good	17.496 \| good	0.304 \| good
2025-10-20T08:00:00.000Z	41 \| good	1.471 \| good	6.063 \| good	43.561 \| good	0.751 \| good	15.112 \| good	0.298 \| good
2025-10-20T09:00:00.000Z	40 \| good	1.534 \| good	4.984 \| good	43.31 \| good	0.557 \| good	12.242 \| good	0.202 \| good
2025-10-20T10:00:00.000Z	43 \| good	1.485 \| good	4.661 \| good	45.846 \| good	0.487 \| good	14.768 \| good	0.195 \| good
2025-10-20T11:00:00.000Z	41 \| good	2.698 \| good	22.476 \| good	43.535 \| good	0.595 \| good	18.909 \| good	0.149 \| good
2025-10-20T12:00:00.000Z	38 \| good	2.317 \| good	14.891 \| good	40.537 \| good	0.528 \| good	21.141 \| good	0.149 \| good
2025-10-20T13:00:00.000Z	36 \| good	2.852 \| good	14.222 \| good	39.06 \| good	0.38 \| good	13.743 \| good	0.183 \| good
2025-10-20T14:00:00.000Z	35 \| good	3.528 \| good	27.101 \| good	37.874 \| good	0.334 \| good	17.932 \| good	0.295 \| good
2025-10-20T15:00:00.000Z	37 \| good	3.376 \| good	39.697 \| good	35.727 \| good	0.333 \| good	10.963 \| good	0.197 \| good
2025-10-20T16:00:00.000Z	34 \| good	4.566 \| good	22.775 \| good	37.066 \| good	0.483 \| good	8.392 \| good	0.197 \| good
2025-10-20T17:00:00.000Z	34 \| good	3.755 \| good	19.635 \| good	37.473 \| good	0.309 \| good	7.485 \| good	0.195 \| good
2025-10-20T18:00:00.000Z	36 \| good	3.579 \| good	19.588 \| good	38.578 \| good	0.298 \| good	8.209 \| good	0.195 \| good
2025-10-20T19:00:00.000Z	37 \| good	3.261 \| good	18.724 \| good	40.274 \| good	0.297 \| good	7.662 \| good	0.195 \| good
2025-10-20T20:00:00.000Z	39 \| good	2.994 \| good	16.154 \| good	41.844 \| good	0.281 \| good	8.945 \| good	0.195 \| good
2025-10-20T21:00:00.000Z	39 \| good	2.579 \| good	13.497 \| good	42.462 \| good	0.279 \| good	9.984 \| good	0.195 \| good
2025-10-20T22:00:00.000Z	42 \| good	2.474 \| good	14.272 \| good	44.691 \| good	0.304 \| good	11.582 \| good	0.243 \| good
2025-10-20T23:00:00.000Z	40 \| good	2.283 \| good	10.011 \| good	43.391 \| good	0.304 \| good	11.753 \| good	0.228 \| good
2025-10-21T00:00:00.000Z	41 \| good	2.208 \| good	13.475 \| good	43.52 \| good	0.292 \| good	12.154 \| good	0.228 \| good
2025-10-21T01:00:00.000Z	39 \| good	2.592 \| good	15.18 \| good	42.002 \| good	0.291 \| good	12.782 \| good	0.228 \| good
2025-10-21T02:00:00.000Z	38 \| good	2.903 \| good	14.611 \| good	41.383 \| good	0.509 \| good	11.442 \| good	0.188 \| good
2025-10-21T03:00:00.000Z	33 \| good	2.085 \| good	8.351 \| good	36.343 \| good	0.642 \| good	13.257 \| good	0.176 \| good
2025-10-21T04:00:00.000Z	36 \| good	3.24 \| good	16.222 \| good	38.503 \| good	0.273 \| good	15.961 \| good	0.276 \| good
2025-10-21T05:00:00.000Z	33 \| good	3.49 \| good	18.632 \| good	35.976 \| good	0.791 \| good	16.244 \| good	0.283 \| good
2025-10-21T06:00:00.000Z	31 \| good	3.317 \| good	15.95 \| good	34.294 \| good	0.515 \| good	16.994 \| good	0.283 \| good
2025-10-21T07:00:00.000Z	30 \| good	3.257 \| good	13.25 \| good	31.547 \| good	0.268 \| good	18.656 \| good	0.202 \| good
2025-10-21T08:00:00.000Z	28 \| good	3.866 \| good	14.677 \| good	29.949 \| good	0.769 \| good	19.746 \| good	0.235 \| good
2025-10-21T09:00:00.000Z	28 \| good	3.516 \| good	16.087 \| good	29.553 \| good	0.683 \| good	16.379 \| good	0.235 \| good
2025-10-21T10:00:00.000Z	27 \| good	4.623 \| good	21.901 \| good	26.411 \| good	0.509 \| good	20.364 \| good	0.196 \| good
2025-10-21T11:00:00.000Z	25 \| good	4.455 \| good	22.631 \| good	26.6 \| good	0.459 \| good	19.539 \| good	0.235 \| good
2025-10-21T12:00:00.000Z	28 \| good	4.849 \| good	23.309 \| good	30.132 \| good	0.597 \| good	21.96 \| good	0.251 \| good
2025-10-21T13:00:00.000Z	28 \| good	4.581 \| good	22.654 \| good	29.508 \| good	0.717 \| good	28.101 \| good	0.38 \| good
2025-10-21T14:00:00.000Z	32 \| good	4.828 \| good	22.582 \| good	27.991 \| good	0.754 \| good	33.917 \| good	0.604 \| good
2025-10-21T15:00:00.000Z	38 \| good	7.189 \| good	35.705 \| good	34.086 \| good	0.982 \| good	30.647 \| good	0.601 \| good
2025-10-21T16:00:00.000Z	38 \| good	6.695 \| good	37.653 \| good	37.596 \| good	0.845 \| good	26.308 \| good	0.384 \| good
2025-10-21T17:00:00.000Z	35 \| good	5.249 \| good	25.762 \| good	38.443 \| good	0.743 \| good	23.509 \| good	0.276 \| good
2025-10-21T18:00:00.000Z	37 \| good	4.735 \| good	31.945 \| good	39.805 \| good	0.651 \| good	20.659 \| good	0.196 \| good
2025-10-21T19:00:00.000Z	41 \| good	3.532 \| good	28.203 \| good	44.052 \| good	0.562 \| good	16.931 \| good	0.188 \| good
2025-10-21T20:00:00.000Z	43 \| good	3.348 \| good	26.918 \| good	46.162 \| good	1.053 \| good	16.055 \| good	0.221 \| good
2025-10-21T21:00:00.000Z	44 \| good	2.523 \| good	19.349 \| good	47.902 \| good	0.767 \| good	16.594 \| good	0.268 \| good
2025-10-21T22:00:00.000Z	44 \| good	3.134 \| good	30.67 \| good	47.113 \| good	0.671 \| good	15.402 \| good	0.235 \| good
2025-10-21T23:00:00.000Z	44 \| good	2.805 \| good	32.682 \| good	46.784 \| good	0.591 \| good	15.867 \| good	0.235 \| good
2025-10-22T00:00:00.000Z	40 \| good	3.125 \| good	21.183 \| good	42.683 \| good	0.703 \| good	19.11 \| good	0.25 \| good
2025-10-22T01:00:00.000Z	36 \| good	5.023 \| good	33.991 \| good	39.424 \| good	0.666 \| good	35.884 \| good	0.569 \| good
2025-10-22T02:00:00.000Z	41 \| good	6.228 \| good	43.874 \| good	39.656 \| good	0.865 \| good	31.744 \| good	0.563 \| good
2025-10-22T03:00:00.000Z	54 \| moderate	10.561 \| good	47.268 \| good	22.993 \| good	0.907 \| good	18.915 \| good	0.228 \| good
2025-10-22T04:00:00.000Z	41 \| good	6.015 \| good	44.274 \| good	32.698 \| good	0.434 \| good	25.514 \| good	0.353 \| good
2025-10-22T05:00:00.000Z	33 \| good	5.958 \| good	32.122 \| good	31.081 \| good	0.403 \| good	23.825 \| good	0.298 \| good
2025-10-22T06:00:00.000Z	27 \| good	4.931 \| good	28.934 \| good	27.951 \| good	0.345 \| good	19.012 \| good	0.357 \| good
2025-10-22T06:00:00.000Z	27 \| good	4.931 \| good	28.934 \| good	27.951 \| good	0.345 \| good	19.012 \| good	0.357 \| good
2025-10-20T22:00:00.000Z	44 \| good	3.14 \| good	12.976 \| good	47.467 \| good	0.289 \| good	1.522 \| good	0.098 \| good
2025-10-20T23:00:00.000Z	40 \| good	1.994 \| good	8.113 \| good	43.283 \| good	0.325 \| good	2.379 \| good	0.104 \| good
2025-10-21T00:00:00.000Z	38 \| good	2.356 \| good	9.632 \| good	40.828 \| good	0.362 \| good	3.236 \| good	0.109 \| good
2025-10-21T01:00:00.000Z	36 \| good	3.295 \| good	13.94 \| good	38.795 \| good	0.46 \| good	6.522 \| good	0.131 \| good
2025-10-21T02:00:00.000Z	32 \| good	3.765 \| good	16.361 \| good	34.687 \| good	0.558 \| good	9.809 \| good	0.153 \| good
2025-10-21T03:00:00.000Z	33 \| good	2.86 \| good	12.005 \| good	36.03 \| good	0.657 \| good	13.096 \| good	0.176 \| good
2025-10-21T04:00:00.000Z	32 \| good	3.236 \| good	13.354 \| good	35.301 \| good	0.644 \| good	12.937 \| good	0.175 \| good
2025-10-21T05:00:00.000Z	32 \| good	1.927 \| good	8.197 \| good	35.042 \| good	0.632 \| good	12.778 \| good	0.174 \| good
2025-10-21T06:00:00.000Z	29 \| good	0.763 \| good	2.679 \| good	30.745 \| good	0.619 \| good	12.619 \| good	0.174 \| good
2025-10-21T07:00:00.000Z	22 \| good	0.685 \| good	2.756 \| good	24.317 \| good	0.574 \| good	11.416 \| good	0.166 \| good
2025-10-21T08:00:00.000Z	24 \| good	0.716 \| good	2.774 \| good	25.758 \| good	0.529 \| good	10.213 \| good	0.159 \| good
2025-10-21T09:00:00.000Z	25 \| good	0.448 \| good	1.41 \| good	27.172 \| good	0.484 \| good	9.01 \| good	0.152 \| good
2025-10-21T10:00:00.000Z	25 \| good	1.002 \| good	4.161 \| good	26.996 \| good	0.469 \| good	8.256 \| good	0.145 \| good
2025-10-21T11:00:00.000Z	25 \| good	1.346 \| good	5.455 \| good	26.841 \| good	0.454 \| good	7.501 \| good	0.139 \| good
2025-10-21T12:00:00.000Z	25 \| good	1.999 \| good	8.44 \| good	26.864 \| good	0.439 \| good	6.746 \| good	0.133 \| good
2025-10-21T13:00:00.000Z	26 \| good	2.2 \| good	8.986 \| good	28.157 \| good	0.487 \| good	7.283 \| good	0.15 \| good
2025-10-21T14:00:00.000Z	28 \| good	2.752 \| good	10.99 \| good	30.232 \| good	0.536 \| good	7.819 \| good	0.167 \| good
2025-10-21T15:00:00.000Z	35 \| good	3.211 \| good	13.182 \| good	37.665 \| good	0.584 \| good	8.356 \| good	0.184 \| good
2025-10-21T16:00:00.000Z	36 \| good	2.22 \| good	8.822 \| good	39.191 \| good	0.722 \| good	6.923 \| good	0.165 \| good
2025-10-21T17:00:00.000Z	39 \| good	2.43 \| good	9.933 \| good	42.032 \| good	0.859 \| good	5.491 \| good	0.146 \| good
2025-10-21T18:00:00.000Z	41 \| good	2.992 \| good	12.474 \| good	43.745 \| good	0.997 \| good	4.059 \| good	0.127 \| good
2025-10-21T19:00:00.000Z	41 \| good	3.72 \| good	16.604 \| good	44.112 \| good	0.899 \| good	3.523 \| good	0.123 \| good
2025-10-21T20:00:00.000Z	41 \| good	4.957 \| good	21.268 \| good	43.938 \| good	0.801 \| good	2.987 \| good	0.119 \| good
2025-10-21T21:00:00.000Z	42 \| good	3.934 \| good	16.947 \| good	44.548 \| good	0.704 \| good	2.451 \| good	0.115 \| good
2025-10-21T22:00:00.000Z	42 \| good	3.359 \| good	14.496 \| good	44.849 \| good	0.678 \| good	3.594 \| good	0.123 \| good
2025-10-21T23:00:00.000Z	41 \| good	3.949 \| good	17.074 \| good	43.564 \| good	0.652 \| good	4.736 \| good	0.131 \| good
2025-10-22T00:00:00.000Z	36 \| good	3.484 \| good	15.112 \| good	39.138 \| good	0.626 \| good	5.879 \| good	0.139 \| good
2025-10-22T01:00:00.000Z	31 \| good	4.182 \| good	18.237 \| good	33.954 \| good	0.732 \| good	11.003 \| good	0.176 \| good
2025-10-22T02:00:00.000Z	33 \| good	6.008 \| good	25.782 \| good	27.695 \| good	0.839 \| good	16.127 \| good	0.214 \| good
2025-10-22T03:00:00.000Z	38 \| good	6.97 \| good	31.04 \| good	25.791 \| good	0.945 \| good	21.251 \| good	0.251 \| good
2025-10-22T04:00:00.000Z	44 \| good	7.912 \| good	34.891 \| good	25.351 \| good	0.923 \| good	21.888 \| good	0.261 \| good
2025-10-22T05:00:00.000Z	33 \| good	5.89 \| good	25.653 \| good	25.066 \| good	0.901 \| good	22.525 \| good	0.27 \| good
2025-10-22T06:00:00.000Z	22 \| good	3.074 \| good	12.877 \| good	23.996 \| good	0.879 \| good	23.162 \| good	0.28 \| good
2025-10-22T07:00:00.000Z	21 \| good	2.056 \| good	8.8 \| good	20.888 \| good	0.776 \| good	21.546 \| good	0.268 \| good
2025-10-22T08:00:00.000Z	22 \| good	1.397 \| good	5.535 \| good	23.694 \| good	0.674 \| good	19.93 \| good	0.255 \| good
2025-10-22T09:00:00.000Z	22 \| good	1.296 \| good	5.402 \| good	24.261 \| good	0.572 \| good	18.313 \| good	0.243 \| good
2025-10-22T10:00:00.000Z	22 \| good	1.185 \| good	4.65 \| good	23.948 \| good	0.54 \| good	17.018 \| good	0.23 \| good
2025-10-22T11:00:00.000Z	20 \| good	1.541 \| good	6.045 \| good	21.866 \| good	0.508 \| good	15.723 \| good	0.217 \| good
2025-10-22T12:00:00.000Z	19 \| good	1.753 \| good	7.161 \| good	21.299 \| good	0.476 \| good	14.427 \| good	0.204 \| good
2025-10-22T13:00:00.000Z	20 \| good	2.268 \| good	9.401 \| good	21.681 \| good	0.554 \| good	13.672 \| good	0.229 \| good
2025-10-22T14:00:00.000Z	22 \| good	3.775 \| good	16.738 \| good	23.498 \| good	0.633 \| good	12.916 \| good	0.253 \| good
2025-10-22T15:00:00.000Z	27 \| good	4.311 \| good	18.608 \| good	28.549 \| good	0.711 \| good	12.161 \| good	0.278 \| good
2025-10-22T16:00:00.000Z	32 \| good	5.098 \| good	22.147 \| good	34.964 \| good	0.906 \| good	9.546 \| good	0.231 \| good
2025-10-22T17:00:00.000Z	34 \| good	6.088 \| good	26.604 \| good	37.45 \| good	1.1 \| good	6.932 \| good	0.184 \| good
2025-10-22T18:00:00.000Z	38 \| good	6.631 \| good	29.113 \| good	39.859 \| good	1.294 \| good	4.317 \| good	0.137 \| good
2025-10-22T19:00:00.000Z	38 \| good	7.039 \| good	31.154 \| good	41.154 \| good	1.127 \| good	3.622 \| good	0.131 \| good
2025-10-22T20:00:00.000Z	41 \| good	7.296 \| good	32.506 \| good	43.826 \| good	0.96 \| good	2.926 \| good	0.124 \| good
2025-10-22T21:00:00.000Z	43 \| good	5.787 \| good	25.406 \| good	45.719 \| good	0.794 \| good	2.23 \| good	0.118 \| good

Castle Pines

Get reliable air quality data to drive your business

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

0.17ppm

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

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 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 03:00:00 on 2025-10-22.

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 11:00:00 on 2025-10-21.

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

The current air quality in Castle Pines, Colorado is 27, categorized as Good based on real-time data.

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

The most common pollutant in Castle Pines, Colorado is PM10.

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 4.931 μg/m³.

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

The current PM₁₀ concentration at Castle Pines, Colorado is 28.934 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 0.357 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 0.345 ppb.

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

The current ozone (O₃) concentration at Castle Pines, Colorado is 27.951 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 19.012 ppb.

Certified

APIs

Refund Policy

Historical Climate Data

Terms & Conditions

Refund Policy

Terms & Conditions

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-10-20T07:00:00.000Z	39 \| good	1.655 \| good	6.011 \| good	42.394 \| good	0.608 \| good	17.496 \| good	0.304 \| good
2025-10-20T08:00:00.000Z	41 \| good	1.471 \| good	6.063 \| good	43.561 \| good	0.751 \| good	15.112 \| good	0.298 \| good
2025-10-20T09:00:00.000Z	40 \| good	1.534 \| good	4.984 \| good	43.31 \| good	0.557 \| good	12.242 \| good	0.202 \| good
2025-10-20T10:00:00.000Z	43 \| good	1.485 \| good	4.661 \| good	45.846 \| good	0.487 \| good	14.768 \| good	0.195 \| good
2025-10-20T11:00:00.000Z	41 \| good	2.698 \| good	22.476 \| good	43.535 \| good	0.595 \| good	18.909 \| good	0.149 \| good
2025-10-20T12:00:00.000Z	38 \| good	2.317 \| good	14.891 \| good	40.537 \| good	0.528 \| good	21.141 \| good	0.149 \| good
2025-10-20T13:00:00.000Z	36 \| good	2.852 \| good	14.222 \| good	39.06 \| good	0.38 \| good	13.743 \| good	0.183 \| good
2025-10-20T14:00:00.000Z	35 \| good	3.528 \| good	27.101 \| good	37.874 \| good	0.334 \| good	17.932 \| good	0.295 \| good
2025-10-20T15:00:00.000Z	37 \| good	3.376 \| good	39.697 \| good	35.727 \| good	0.333 \| good	10.963 \| good	0.197 \| good
2025-10-20T16:00:00.000Z	34 \| good	4.566 \| good	22.775 \| good	37.066 \| good	0.483 \| good	8.392 \| good	0.197 \| good
2025-10-20T17:00:00.000Z	34 \| good	3.755 \| good	19.635 \| good	37.473 \| good	0.309 \| good	7.485 \| good	0.195 \| good
2025-10-20T18:00:00.000Z	36 \| good	3.579 \| good	19.588 \| good	38.578 \| good	0.298 \| good	8.209 \| good	0.195 \| good
2025-10-20T19:00:00.000Z	37 \| good	3.261 \| good	18.724 \| good	40.274 \| good	0.297 \| good	7.662 \| good	0.195 \| good
2025-10-20T20:00:00.000Z	39 \| good	2.994 \| good	16.154 \| good	41.844 \| good	0.281 \| good	8.945 \| good	0.195 \| good
2025-10-20T21:00:00.000Z	39 \| good	2.579 \| good	13.497 \| good	42.462 \| good	0.279 \| good	9.984 \| good	0.195 \| good
2025-10-20T22:00:00.000Z	42 \| good	2.474 \| good	14.272 \| good	44.691 \| good	0.304 \| good	11.582 \| good	0.243 \| good
2025-10-20T23:00:00.000Z	40 \| good	2.283 \| good	10.011 \| good	43.391 \| good	0.304 \| good	11.753 \| good	0.228 \| good
2025-10-21T00:00:00.000Z	41 \| good	2.208 \| good	13.475 \| good	43.52 \| good	0.292 \| good	12.154 \| good	0.228 \| good
2025-10-21T01:00:00.000Z	39 \| good	2.592 \| good	15.18 \| good	42.002 \| good	0.291 \| good	12.782 \| good	0.228 \| good
2025-10-21T02:00:00.000Z	38 \| good	2.903 \| good	14.611 \| good	41.383 \| good	0.509 \| good	11.442 \| good	0.188 \| good
2025-10-21T03:00:00.000Z	33 \| good	2.085 \| good	8.351 \| good	36.343 \| good	0.642 \| good	13.257 \| good	0.176 \| good
2025-10-21T04:00:00.000Z	36 \| good	3.24 \| good	16.222 \| good	38.503 \| good	0.273 \| good	15.961 \| good	0.276 \| good
2025-10-21T05:00:00.000Z	33 \| good	3.49 \| good	18.632 \| good	35.976 \| good	0.791 \| good	16.244 \| good	0.283 \| good
2025-10-21T06:00:00.000Z	31 \| good	3.317 \| good	15.95 \| good	34.294 \| good	0.515 \| good	16.994 \| good	0.283 \| good
2025-10-21T07:00:00.000Z	30 \| good	3.257 \| good	13.25 \| good	31.547 \| good	0.268 \| good	18.656 \| good	0.202 \| good
2025-10-21T08:00:00.000Z	28 \| good	3.866 \| good	14.677 \| good	29.949 \| good	0.769 \| good	19.746 \| good	0.235 \| good
2025-10-21T09:00:00.000Z	28 \| good	3.516 \| good	16.087 \| good	29.553 \| good	0.683 \| good	16.379 \| good	0.235 \| good
2025-10-21T10:00:00.000Z	27 \| good	4.623 \| good	21.901 \| good	26.411 \| good	0.509 \| good	20.364 \| good	0.196 \| good
2025-10-21T11:00:00.000Z	25 \| good	4.455 \| good	22.631 \| good	26.6 \| good	0.459 \| good	19.539 \| good	0.235 \| good
2025-10-21T12:00:00.000Z	28 \| good	4.849 \| good	23.309 \| good	30.132 \| good	0.597 \| good	21.96 \| good	0.251 \| good
2025-10-21T13:00:00.000Z	28 \| good	4.581 \| good	22.654 \| good	29.508 \| good	0.717 \| good	28.101 \| good	0.38 \| good
2025-10-21T14:00:00.000Z	32 \| good	4.828 \| good	22.582 \| good	27.991 \| good	0.754 \| good	33.917 \| good	0.604 \| good
2025-10-21T15:00:00.000Z	38 \| good	7.189 \| good	35.705 \| good	34.086 \| good	0.982 \| good	30.647 \| good	0.601 \| good
2025-10-21T16:00:00.000Z	38 \| good	6.695 \| good	37.653 \| good	37.596 \| good	0.845 \| good	26.308 \| good	0.384 \| good
2025-10-21T17:00:00.000Z	35 \| good	5.249 \| good	25.762 \| good	38.443 \| good	0.743 \| good	23.509 \| good	0.276 \| good
2025-10-21T18:00:00.000Z	37 \| good	4.735 \| good	31.945 \| good	39.805 \| good	0.651 \| good	20.659 \| good	0.196 \| good
2025-10-21T19:00:00.000Z	41 \| good	3.532 \| good	28.203 \| good	44.052 \| good	0.562 \| good	16.931 \| good	0.188 \| good
2025-10-21T20:00:00.000Z	43 \| good	3.348 \| good	26.918 \| good	46.162 \| good	1.053 \| good	16.055 \| good	0.221 \| good
2025-10-21T21:00:00.000Z	44 \| good	2.523 \| good	19.349 \| good	47.902 \| good	0.767 \| good	16.594 \| good	0.268 \| good
2025-10-21T22:00:00.000Z	44 \| good	3.134 \| good	30.67 \| good	47.113 \| good	0.671 \| good	15.402 \| good	0.235 \| good
2025-10-21T23:00:00.000Z	44 \| good	2.805 \| good	32.682 \| good	46.784 \| good	0.591 \| good	15.867 \| good	0.235 \| good
2025-10-22T00:00:00.000Z	40 \| good	3.125 \| good	21.183 \| good	42.683 \| good	0.703 \| good	19.11 \| good	0.25 \| good
2025-10-22T01:00:00.000Z	36 \| good	5.023 \| good	33.991 \| good	39.424 \| good	0.666 \| good	35.884 \| good	0.569 \| good
2025-10-22T02:00:00.000Z	41 \| good	6.228 \| good	43.874 \| good	39.656 \| good	0.865 \| good	31.744 \| good	0.563 \| good
2025-10-22T03:00:00.000Z	54 \| moderate	10.561 \| good	47.268 \| good	22.993 \| good	0.907 \| good	18.915 \| good	0.228 \| good
2025-10-22T04:00:00.000Z	41 \| good	6.015 \| good	44.274 \| good	32.698 \| good	0.434 \| good	25.514 \| good	0.353 \| good
2025-10-22T05:00:00.000Z	33 \| good	5.958 \| good	32.122 \| good	31.081 \| good	0.403 \| good	23.825 \| good	0.298 \| good
2025-10-22T06:00:00.000Z	27 \| good	4.931 \| good	28.934 \| good	27.951 \| good	0.345 \| good	19.012 \| good	0.357 \| good
2025-10-22T06:00:00.000Z	27 \| good	4.931 \| good	28.934 \| good	27.951 \| good	0.345 \| good	19.012 \| good	0.357 \| good
2025-10-20T22:00:00.000Z	44 \| good	3.14 \| good	12.976 \| good	47.467 \| good	0.289 \| good	1.522 \| good	0.098 \| good
2025-10-20T23:00:00.000Z	40 \| good	1.994 \| good	8.113 \| good	43.283 \| good	0.325 \| good	2.379 \| good	0.104 \| good
2025-10-21T00:00:00.000Z	38 \| good	2.356 \| good	9.632 \| good	40.828 \| good	0.362 \| good	3.236 \| good	0.109 \| good
2025-10-21T01:00:00.000Z	36 \| good	3.295 \| good	13.94 \| good	38.795 \| good	0.46 \| good	6.522 \| good	0.131 \| good
2025-10-21T02:00:00.000Z	32 \| good	3.765 \| good	16.361 \| good	34.687 \| good	0.558 \| good	9.809 \| good	0.153 \| good
2025-10-21T03:00:00.000Z	33 \| good	2.86 \| good	12.005 \| good	36.03 \| good	0.657 \| good	13.096 \| good	0.176 \| good
2025-10-21T04:00:00.000Z	32 \| good	3.236 \| good	13.354 \| good	35.301 \| good	0.644 \| good	12.937 \| good	0.175 \| good
2025-10-21T05:00:00.000Z	32 \| good	1.927 \| good	8.197 \| good	35.042 \| good	0.632 \| good	12.778 \| good	0.174 \| good
2025-10-21T06:00:00.000Z	29 \| good	0.763 \| good	2.679 \| good	30.745 \| good	0.619 \| good	12.619 \| good	0.174 \| good
2025-10-21T07:00:00.000Z	22 \| good	0.685 \| good	2.756 \| good	24.317 \| good	0.574 \| good	11.416 \| good	0.166 \| good
2025-10-21T08:00:00.000Z	24 \| good	0.716 \| good	2.774 \| good	25.758 \| good	0.529 \| good	10.213 \| good	0.159 \| good
2025-10-21T09:00:00.000Z	25 \| good	0.448 \| good	1.41 \| good	27.172 \| good	0.484 \| good	9.01 \| good	0.152 \| good
2025-10-21T10:00:00.000Z	25 \| good	1.002 \| good	4.161 \| good	26.996 \| good	0.469 \| good	8.256 \| good	0.145 \| good
2025-10-21T11:00:00.000Z	25 \| good	1.346 \| good	5.455 \| good	26.841 \| good	0.454 \| good	7.501 \| good	0.139 \| good
2025-10-21T12:00:00.000Z	25 \| good	1.999 \| good	8.44 \| good	26.864 \| good	0.439 \| good	6.746 \| good	0.133 \| good
2025-10-21T13:00:00.000Z	26 \| good	2.2 \| good	8.986 \| good	28.157 \| good	0.487 \| good	7.283 \| good	0.15 \| good
2025-10-21T14:00:00.000Z	28 \| good	2.752 \| good	10.99 \| good	30.232 \| good	0.536 \| good	7.819 \| good	0.167 \| good
2025-10-21T15:00:00.000Z	35 \| good	3.211 \| good	13.182 \| good	37.665 \| good	0.584 \| good	8.356 \| good	0.184 \| good
2025-10-21T16:00:00.000Z	36 \| good	2.22 \| good	8.822 \| good	39.191 \| good	0.722 \| good	6.923 \| good	0.165 \| good
2025-10-21T17:00:00.000Z	39 \| good	2.43 \| good	9.933 \| good	42.032 \| good	0.859 \| good	5.491 \| good	0.146 \| good
2025-10-21T18:00:00.000Z	41 \| good	2.992 \| good	12.474 \| good	43.745 \| good	0.997 \| good	4.059 \| good	0.127 \| good
2025-10-21T19:00:00.000Z	41 \| good	3.72 \| good	16.604 \| good	44.112 \| good	0.899 \| good	3.523 \| good	0.123 \| good
2025-10-21T20:00:00.000Z	41 \| good	4.957 \| good	21.268 \| good	43.938 \| good	0.801 \| good	2.987 \| good	0.119 \| good
2025-10-21T21:00:00.000Z	42 \| good	3.934 \| good	16.947 \| good	44.548 \| good	0.704 \| good	2.451 \| good	0.115 \| good
2025-10-21T22:00:00.000Z	42 \| good	3.359 \| good	14.496 \| good	44.849 \| good	0.678 \| good	3.594 \| good	0.123 \| good
2025-10-21T23:00:00.000Z	41 \| good	3.949 \| good	17.074 \| good	43.564 \| good	0.652 \| good	4.736 \| good	0.131 \| good
2025-10-22T00:00:00.000Z	36 \| good	3.484 \| good	15.112 \| good	39.138 \| good	0.626 \| good	5.879 \| good	0.139 \| good
2025-10-22T01:00:00.000Z	31 \| good	4.182 \| good	18.237 \| good	33.954 \| good	0.732 \| good	11.003 \| good	0.176 \| good
2025-10-22T02:00:00.000Z	33 \| good	6.008 \| good	25.782 \| good	27.695 \| good	0.839 \| good	16.127 \| good	0.214 \| good
2025-10-22T03:00:00.000Z	38 \| good	6.97 \| good	31.04 \| good	25.791 \| good	0.945 \| good	21.251 \| good	0.251 \| good
2025-10-22T04:00:00.000Z	44 \| good	7.912 \| good	34.891 \| good	25.351 \| good	0.923 \| good	21.888 \| good	0.261 \| good
2025-10-22T05:00:00.000Z	33 \| good	5.89 \| good	25.653 \| good	25.066 \| good	0.901 \| good	22.525 \| good	0.27 \| good
2025-10-22T06:00:00.000Z	22 \| good	3.074 \| good	12.877 \| good	23.996 \| good	0.879 \| good	23.162 \| good	0.28 \| good
2025-10-22T07:00:00.000Z	21 \| good	2.056 \| good	8.8 \| good	20.888 \| good	0.776 \| good	21.546 \| good	0.268 \| good
2025-10-22T08:00:00.000Z	22 \| good	1.397 \| good	5.535 \| good	23.694 \| good	0.674 \| good	19.93 \| good	0.255 \| good
2025-10-22T09:00:00.000Z	22 \| good	1.296 \| good	5.402 \| good	24.261 \| good	0.572 \| good	18.313 \| good	0.243 \| good
2025-10-22T10:00:00.000Z	22 \| good	1.185 \| good	4.65 \| good	23.948 \| good	0.54 \| good	17.018 \| good	0.23 \| good
2025-10-22T11:00:00.000Z	20 \| good	1.541 \| good	6.045 \| good	21.866 \| good	0.508 \| good	15.723 \| good	0.217 \| good
2025-10-22T12:00:00.000Z	19 \| good	1.753 \| good	7.161 \| good	21.299 \| good	0.476 \| good	14.427 \| good	0.204 \| good
2025-10-22T13:00:00.000Z	20 \| good	2.268 \| good	9.401 \| good	21.681 \| good	0.554 \| good	13.672 \| good	0.229 \| good
2025-10-22T14:00:00.000Z	22 \| good	3.775 \| good	16.738 \| good	23.498 \| good	0.633 \| good	12.916 \| good	0.253 \| good
2025-10-22T15:00:00.000Z	27 \| good	4.311 \| good	18.608 \| good	28.549 \| good	0.711 \| good	12.161 \| good	0.278 \| good
2025-10-22T16:00:00.000Z	32 \| good	5.098 \| good	22.147 \| good	34.964 \| good	0.906 \| good	9.546 \| good	0.231 \| good
2025-10-22T17:00:00.000Z	34 \| good	6.088 \| good	26.604 \| good	37.45 \| good	1.1 \| good	6.932 \| good	0.184 \| good
2025-10-22T18:00:00.000Z	38 \| good	6.631 \| good	29.113 \| good	39.859 \| good	1.294 \| good	4.317 \| good	0.137 \| good
2025-10-22T19:00:00.000Z	38 \| good	7.039 \| good	31.154 \| good	41.154 \| good	1.127 \| good	3.622 \| good	0.131 \| good
2025-10-22T20:00:00.000Z	41 \| good	7.296 \| good	32.506 \| good	43.826 \| good	0.96 \| good	2.926 \| good	0.124 \| good
2025-10-22T21:00:00.000Z	43 \| good	5.787 \| good	25.406 \| good	45.719 \| good	0.794 \| good	2.23 \| good	0.118 \| 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)

Track live Castle Pines, Colorado air quality forecast and history

Get reliable air quality data to drive your business

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

Air quality in nearby cities

Lone Tree, Colorado

Highlands Ranch, Colorado

Castle Rock, Colorado

Centennial, Colorado

Parker, Colorado

The Pinery, Colorado

How accurate is Colorado, USA air quality data?

Air quality levels in US

Frequently asked questions

How often is the air quality data for Castle Pines, Colorado updated?

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

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

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

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

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

What is the current concentration of PM2.5 in Castle Pines, Colorado?

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

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?

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

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

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?

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

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

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