What is the current concentration of PM10 in Centennial, Colorado?

The current PM10 concentration at Centennial, Colorado is 18.365 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Centennial, Colorado is 0.858 ppb.

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

The current ozone (O3) concentration at Centennial, Colorado is 34.731 ppm.

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

The current nitrogen dioxide (NO2) concentration at Centennial, Colorado is 23.576 ppb.

Live air quality index in Centennial, Colorado today

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

Stay updated with real-time air quality in Centennial, 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

Centennial, Colorado

Last updated: ... (Local time)

Major air pollutants in Centennial, Colorado

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

7.02 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

34.46 μg/m³

155

255

425

605+

Ozone (O₃)

50.16 ppb

201

201+

Sulfur Dioxide (SO₂)

0.72 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

14.66 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.28 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Centennial, Colorado

Get Live Pollen Counts

Centennial, Colorado

Scroll To Air Quality Map

Track live Centennial, Colorado air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-07-09T19:00:00.000Z	46 \| good	3.707 \| good	21.483 \| good	49.533 \| good	0.588 \| good	11.476 \| good	0.156 \| good
2025-07-09T20:00:00.000Z	47 \| good	3.532 \| good	17.375 \| good	50.866 \| good	0.717 \| good	13.027 \| good	0.197 \| good
2025-07-09T21:00:00.000Z	48 \| good	2.146 \| good	10.203 \| good	51.67 \| good	0.641 \| good	12.736 \| good	0.256 \| good
2025-07-09T22:00:00.000Z	48 \| good	2.951 \| good	13.481 \| good	52.167 \| good	0.738 \| good	8.229 \| good	0.195 \| good
2025-07-09T23:00:00.000Z	47 \| good	2.328 \| good	9.158 \| good	51.202 \| good	0.757 \| good	11.534 \| good	0.311 \| good
2025-07-10T00:00:00.000Z	46 \| good	2.479 \| good	13.479 \| good	49.821 \| good	0.679 \| good	11.02 \| good	0.317 \| good
2025-07-10T01:00:00.000Z	45 \| good	2.433 \| good	16.531 \| good	48.643 \| good	0.53 \| good	11.735 \| good	0.307 \| good
2025-07-10T02:00:00.000Z	44 \| good	4.318 \| good	20.246 \| good	46.596 \| good	0.548 \| good	15.488 \| good	0.426 \| good
2025-07-10T03:00:00.000Z	35 \| good	4.761 \| good	30.061 \| good	38.367 \| good	0.669 \| good	24.351 \| good	0.533 \| good
2025-07-10T04:00:00.000Z	31 \| good	5.163 \| good	30.56 \| good	33.95 \| good	0.684 \| good	27.216 \| good	0.476 \| good
2025-07-10T05:00:00.000Z	34 \| good	5.635 \| good	37.085 \| good	33.165 \| good	0.733 \| good	23.977 \| good	0.555 \| good
2025-07-10T06:00:00.000Z	32 \| good	3.597 \| good	18.365 \| good	34.731 \| good	0.858 \| good	23.576 \| good	0.445 \| good
2025-07-10T07:00:00.000Z	32 \| good	4.136 \| good	23.035 \| good	34.621 \| good	0.789 \| good	23.82 \| good	0.289 \| good
2025-07-10T08:00:00.000Z	28 \| good	3.686 \| good	16.308 \| good	29.82 \| good	0.812 \| good	25.994 \| good	0.321 \| good
2025-07-10T09:00:00.000Z	31 \| good	4.697 \| good	22.596 \| good	32.665 \| good	0.651 \| good	12.961 \| good	0.185 \| good
2025-07-10T10:00:00.000Z	29 \| good	3.936 \| good	18.196 \| good	31.329 \| good	0.493 \| good	12.321 \| good	0.152 \| good
2025-07-10T11:00:00.000Z	29 \| good	3.64 \| good	20.127 \| good	30.74 \| good	0.554 \| good	14.999 \| good	0.152 \| good
2025-07-10T12:00:00.000Z	27 \| good	2.288 \| good	10.887 \| good	29.427 \| good	0.636 \| good	17.845 \| good	0.289 \| good
2025-07-10T13:00:00.000Z	25 \| good	4.257 \| good	20.496 \| good	26.723 \| good	0.693 \| good	20.179 \| good	0.362 \| good
2025-07-10T14:00:00.000Z	33 \| good	5.179 \| good	36.308 \| good	26.717 \| good	0.781 \| good	26.177 \| good	0.374 \| good
2025-07-10T15:00:00.000Z	30 \| good	4.509 \| good	23.008 \| good	31.569 \| good	1 \| good	24.218 \| good	0.321 \| good
2025-07-10T16:00:00.000Z	31 \| good	3.21 \| good	16.645 \| good	34.115 \| good	0.806 \| good	21.502 \| good	0.266 \| good
2025-07-10T17:00:00.000Z	36 \| good	2.897 \| good	14.33 \| good	38.926 \| good	0.679 \| good	9.532 \| good	0.183 \| good
2025-07-10T18:00:00.000Z	35 \| good	2.753 \| good	13.634 \| good	38.375 \| good	0.695 \| good	9.554 \| good	0.149 \| good
2025-07-10T19:00:00.000Z	36 \| good	3.809 \| good	20.294 \| good	39.067 \| good	0.598 \| good	12.189 \| good	0.288 \| good
2025-07-10T20:00:00.000Z	38 \| good	5.244 \| good	25.794 \| good	41.013 \| good	0.676 \| good	11.051 \| good	0.3 \| good
2025-07-10T21:00:00.000Z	49 \| good	8.628 \| good	30.895 \| good	39.165 \| good	0.549 \| good	10.282 \| good	0.231 \| good
2025-07-10T22:00:00.000Z	56 \| moderate	12.245 \| fine	38.833 \| good	41.882 \| good	0.579 \| good	15.737 \| good	0.329 \| good
2025-07-10T23:00:00.000Z	54 \| moderate	10.936 \| good	40.112 \| good	41.242 \| good	0.593 \| good	12.659 \| good	0.289 \| good
2025-07-11T00:00:00.000Z	52 \| moderate	10.086 \| good	33.442 \| good	44.759 \| good	0.669 \| good	9.471 \| good	0.24 \| good
2025-07-11T01:00:00.000Z	52 \| moderate	10.296 \| good	40.835 \| good	46.682 \| good	0.665 \| good	8.196 \| good	0.191 \| good
2025-07-11T02:00:00.000Z	44 \| good	7.526 \| good	28.144 \| good	46.659 \| good	0.844 \| good	10.555 \| good	0.239 \| good
2025-07-11T03:00:00.000Z	43 \| good	6.145 \| good	22.584 \| good	45.957 \| good	0.611 \| good	11.841 \| good	0.231 \| good
2025-07-11T04:00:00.000Z	39 \| good	5.331 \| good	21.344 \| good	42.47 \| good	0.487 \| good	16.261 \| good	0.324 \| good
2025-07-11T05:00:00.000Z	36 \| good	4.752 \| good	24.865 \| good	38.677 \| good	0.507 \| good	18.114 \| good	0.357 \| good
2025-07-11T06:00:00.000Z	38 \| good	7.311 \| good	29.45 \| good	38.072 \| good	0.602 \| good	18.073 \| good	0.315 \| good
2025-07-11T07:00:00.000Z	36 \| good	6.087 \| good	25.607 \| good	39.423 \| good	0.723 \| good	19.558 \| good	0.316 \| good
2025-07-11T08:00:00.000Z	36 \| good	6.143 \| good	27.646 \| good	38.669 \| good	0.817 \| good	16.253 \| good	0.262 \| good
2025-07-11T09:00:00.000Z	36 \| good	5.948 \| good	19.243 \| good	39.354 \| good	0.7 \| good	12.522 \| good	0.183 \| good
2025-07-11T10:00:00.000Z	38 \| good	7.141 \| good	26.293 \| good	40.314 \| good	0.528 \| good	10.98 \| good	0.191 \| good
2025-07-11T11:00:00.000Z	36 \| good	5.95 \| good	19.29 \| good	39.052 \| good	0.634 \| good	10.955 \| good	0.157 \| good
2025-07-11T12:00:00.000Z	38 \| good	6.576 \| good	24.045 \| good	36.194 \| good	0.657 \| good	17.73 \| good	0.311 \| good
2025-07-11T13:00:00.000Z	38 \| good	6.806 \| good	28.724 \| good	33.534 \| good	0.788 \| good	23.534 \| good	0.506 \| good
2025-07-11T14:00:00.000Z	38 \| good	7.084 \| good	35.695 \| good	31.913 \| good	0.815 \| good	22.821 \| good	0.401 \| good
2025-07-11T15:00:00.000Z	38 \| good	7.282 \| good	29.981 \| good	36.417 \| good	0.683 \| good	19.579 \| good	0.296 \| good
2025-07-11T16:00:00.000Z	55 \| moderate	6.883 \| good	63.908 \| fine	41.872 \| good	0.669 \| good	17.59 \| good	0.288 \| good
2025-07-11T17:00:00.000Z	41 \| good	7.46 \| good	34.45 \| good	44.027 \| good	0.825 \| good	16.864 \| good	0.322 \| good
2025-07-11T18:00:00.000Z	46 \| good	7.021 \| good	34.463 \| good	50.159 \| good	0.716 \| good	14.66 \| good	0.276 \| good
2025-07-11T18:00:00.000Z	46 \| good	7.021 \| good	34.463 \| good	50.159 \| good	0.716 \| good	14.66 \| good	0.276 \| good
2025-07-10T07:00:00.000Z	37 \| good	4.875 \| good	21.086 \| good	39.752 \| good	0.668 \| good	11.808 \| good	0.182 \| good
2025-07-10T08:00:00.000Z	40 \| good	2.13 \| good	8.795 \| good	42.923 \| good	0.695 \| good	10.941 \| good	0.178 \| good
2025-07-10T09:00:00.000Z	35 \| good	3.391 \| good	14.611 \| good	38.061 \| good	0.722 \| good	10.074 \| good	0.174 \| good
2025-07-10T10:00:00.000Z	38 \| good	7.265 \| good	32.105 \| good	35.817 \| good	0.62 \| good	7.365 \| good	0.145 \| good
2025-07-10T11:00:00.000Z	38 \| good	7.103 \| good	31.519 \| good	35.689 \| good	0.517 \| good	4.655 \| good	0.116 \| good
2025-07-10T12:00:00.000Z	32 \| good	5.09 \| good	21.943 \| good	34.532 \| good	0.415 \| good	1.946 \| good	0.086 \| good
2025-07-10T13:00:00.000Z	32 \| good	5.125 \| good	21.974 \| good	34.591 \| good	0.468 \| good	2.072 \| good	0.09 \| good
2025-07-10T14:00:00.000Z	33 \| good	4.032 \| good	17.706 \| good	36.396 \| good	0.52 \| good	2.198 \| good	0.095 \| good
2025-07-10T15:00:00.000Z	35 \| good	2.212 \| good	9.106 \| good	38.474 \| good	0.573 \| good	2.324 \| good	0.099 \| good
2025-07-10T16:00:00.000Z	40 \| good	1.551 \| good	6 \| good	43.319 \| good	0.502 \| good	1.769 \| good	0.094 \| good
2025-07-10T17:00:00.000Z	42 \| good	0.671 \| good	2.066 \| good	44.521 \| good	0.43 \| good	1.214 \| good	0.089 \| good
2025-07-10T18:00:00.000Z	39 \| good	1.464 \| good	5.742 \| good	42.123 \| good	0.358 \| good	0.659 \| good	0.085 \| good
2025-07-10T19:00:00.000Z	43 \| good	1.183 \| good	4.827 \| good	45.879 \| good	0.339 \| good	0.731 \| good	0.086 \| good
2025-07-10T20:00:00.000Z	44 \| good	4.056 \| good	17.735 \| good	48.451 \| good	0.32 \| good	0.804 \| good	0.087 \| good
2025-07-10T21:00:00.000Z	67 \| moderate	5.4 \| good	23.765 \| good	60.033 \| fine	0.301 \| good	0.876 \| good	0.088 \| good
2025-07-10T22:00:00.000Z	80 \| moderate	21.795 \| fine	96.026 \| fine	63.964 \| fine	0.33 \| good	1.086 \| good	0.089 \| good
2025-07-10T23:00:00.000Z	96 \| moderate	33.021 \| fine	143.754 \| fine	52.901 \| good	0.359 \| good	1.296 \| good	0.09 \| good
2025-07-11T00:00:00.000Z	39 \| good	0.818 \| good	2.911 \| good	41.84 \| good	0.388 \| good	1.506 \| good	0.092 \| good
2025-07-11T01:00:00.000Z	36 \| good	2.242 \| good	9.225 \| good	38.928 \| good	0.466 \| good	3.244 \| good	0.105 \| good
2025-07-11T02:00:00.000Z	41 \| good	2.498 \| good	10.155 \| good	44.431 \| good	0.544 \| good	4.983 \| good	0.118 \| good
2025-07-11T03:00:00.000Z	38 \| good	4.987 \| good	21.55 \| good	41.413 \| good	0.622 \| good	6.721 \| good	0.131 \| good
2025-07-11T04:00:00.000Z	37 \| good	4.991 \| good	21.785 \| good	39.962 \| good	0.644 \| good	9.497 \| good	0.156 \| good
2025-07-11T05:00:00.000Z	36 \| good	3.892 \| good	16.999 \| good	38.735 \| good	0.665 \| good	12.273 \| good	0.181 \| good
2025-07-11T06:00:00.000Z	34 \| good	2.957 \| good	12.683 \| good	37.381 \| good	0.686 \| good	15.049 \| good	0.206 \| good
2025-07-11T07:00:00.000Z	33 \| good	2.421 \| good	10.097 \| good	35.883 \| good	0.646 \| good	14.149 \| good	0.203 \| good
2025-07-11T08:00:00.000Z	33 \| good	2.794 \| good	11.437 \| good	36.263 \| good	0.606 \| good	13.249 \| good	0.2 \| good
2025-07-11T09:00:00.000Z	32 \| good	3.029 \| good	12.931 \| good	35.499 \| good	0.566 \| good	12.35 \| good	0.197 \| good
2025-07-11T10:00:00.000Z	33 \| good	3.288 \| good	14.234 \| good	36.414 \| good	0.532 \| good	11.274 \| good	0.19 \| good
2025-07-11T11:00:00.000Z	35 \| good	2.415 \| good	10 \| good	38.414 \| good	0.499 \| good	10.198 \| good	0.184 \| good
2025-07-11T12:00:00.000Z	29 \| good	4.097 \| good	17.818 \| good	30.576 \| good	0.465 \| good	9.123 \| good	0.177 \| good
2025-07-11T13:00:00.000Z	38 \| good	6.553 \| good	29.216 \| good	30.669 \| good	0.688 \| good	7.224 \| good	0.159 \| good
2025-07-11T14:00:00.000Z	38 \| good	6.96 \| good	30.698 \| good	37.119 \| good	0.911 \| good	5.325 \| good	0.142 \| good
2025-07-11T15:00:00.000Z	40 \| good	5.512 \| good	23.769 \| good	43.428 \| good	1.134 \| good	3.426 \| good	0.124 \| good
2025-07-11T16:00:00.000Z	44 \| good	2.877 \| good	11.95 \| good	47.935 \| good	0.944 \| good	2.604 \| good	0.117 \| good
2025-07-11T17:00:00.000Z	51 \| moderate	2.722 \| good	11.167 \| good	54.574 \| good	0.754 \| good	1.781 \| good	0.109 \| good
2025-07-11T18:00:00.000Z	71 \| moderate	2.547 \| good	10.268 \| good	61.178 \| fine	0.563 \| good	0.959 \| good	0.102 \| good
2025-07-11T19:00:00.000Z	67 \| moderate	3.81 \| good	16.821 \| good	60.014 \| fine	0.504 \| good	0.95 \| good	0.101 \| good
2025-07-11T20:00:00.000Z	64 \| moderate	4.599 \| good	20.3 \| good	59.338 \| fine	0.444 \| good	0.941 \| good	0.101 \| good
2025-07-11T21:00:00.000Z	61 \| moderate	6.786 \| good	30.259 \| good	57.929 \| fine	0.385 \| good	0.933 \| good	0.1 \| good
2025-07-11T22:00:00.000Z	49 \| good	6.513 \| good	28.704 \| good	52.911 \| good	0.391 \| good	1.088 \| good	0.102 \| good
2025-07-11T23:00:00.000Z	45 \| good	4.969 \| good	21.503 \| good	49.439 \| good	0.397 \| good	1.243 \| good	0.103 \| good
2025-07-12T00:00:00.000Z	50 \| good	5.467 \| good	23.975 \| good	53.955 \| good	0.404 \| good	1.398 \| good	0.104 \| good
2025-07-12T01:00:00.000Z	44 \| good	5.635 \| good	24.803 \| good	48.313 \| good	0.408 \| good	2.509 \| good	0.113 \| good
2025-07-12T02:00:00.000Z	40 \| good	6.077 \| good	26.672 \| good	43.073 \| good	0.413 \| good	3.619 \| good	0.121 \| good
2025-07-12T03:00:00.000Z	38 \| good	4.9 \| good	21.203 \| good	40.839 \| good	0.418 \| good	4.73 \| good	0.129 \| good
2025-07-12T04:00:00.000Z	37 \| good	2.777 \| good	11.565 \| good	40.174 \| good	0.511 \| good	4.707 \| good	0.129 \| good
2025-07-12T05:00:00.000Z	38 \| good	2.722 \| good	11.195 \| good	40.882 \| good	0.604 \| good	4.684 \| good	0.129 \| good
2025-07-12T06:00:00.000Z	45 \| good	6.303 \| good	7.989 \| good	48.682 \| good	0.699 \| good	4.674 \| good	0.129 \| good

Centennial

Get reliable air quality data to drive your business

Centennial, Colorado air quality map: Track AQI near you

0.44ppm

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 Centennial, Colorado updated?

The air quality for Centennial, Colorado is updated every hour.

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

The worst air quality in Centennial, Colorado in the last 24 hours was observed at 05:00:00 on 2025-07-09.

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

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

What is the current air quality in Centennial, Colorado?

The current air quality in Centennial, Colorado is 32, categorized as Good based on real-time data.

What pollutant is the most common in Centennial, Colorado?

The most common pollutant in Centennial, Colorado is O3.

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

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

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

The current PM_2.5 concentration at Centennial, Colorado is 3.597 μg/m³.

What is the current concentration of PM₁₀ in Centennial, Colorado?

The current PM₁₀ concentration at Centennial, Colorado is 18.365 μg/m³.

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

The current carbon monoxide (CO) concentration at Centennial, Colorado is 0.445 ppm.

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

The current sulfur dioxide (SO₂) concentration at Centennial, Colorado is 0.858 ppb.

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

The current ozone (O₃) concentration at Centennial, Colorado is 34.731 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Centennial, Colorado is 23.576 ppb.

Certified

APIs

Refund Policy

Historical Climate Data

Terms & Conditions

Refund Policy

Terms & Conditions

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-07-09T19:00:00.000Z	46 \| good	3.707 \| good	21.483 \| good	49.533 \| good	0.588 \| good	11.476 \| good	0.156 \| good
2025-07-09T20:00:00.000Z	47 \| good	3.532 \| good	17.375 \| good	50.866 \| good	0.717 \| good	13.027 \| good	0.197 \| good
2025-07-09T21:00:00.000Z	48 \| good	2.146 \| good	10.203 \| good	51.67 \| good	0.641 \| good	12.736 \| good	0.256 \| good
2025-07-09T22:00:00.000Z	48 \| good	2.951 \| good	13.481 \| good	52.167 \| good	0.738 \| good	8.229 \| good	0.195 \| good
2025-07-09T23:00:00.000Z	47 \| good	2.328 \| good	9.158 \| good	51.202 \| good	0.757 \| good	11.534 \| good	0.311 \| good
2025-07-10T00:00:00.000Z	46 \| good	2.479 \| good	13.479 \| good	49.821 \| good	0.679 \| good	11.02 \| good	0.317 \| good
2025-07-10T01:00:00.000Z	45 \| good	2.433 \| good	16.531 \| good	48.643 \| good	0.53 \| good	11.735 \| good	0.307 \| good
2025-07-10T02:00:00.000Z	44 \| good	4.318 \| good	20.246 \| good	46.596 \| good	0.548 \| good	15.488 \| good	0.426 \| good
2025-07-10T03:00:00.000Z	35 \| good	4.761 \| good	30.061 \| good	38.367 \| good	0.669 \| good	24.351 \| good	0.533 \| good
2025-07-10T04:00:00.000Z	31 \| good	5.163 \| good	30.56 \| good	33.95 \| good	0.684 \| good	27.216 \| good	0.476 \| good
2025-07-10T05:00:00.000Z	34 \| good	5.635 \| good	37.085 \| good	33.165 \| good	0.733 \| good	23.977 \| good	0.555 \| good
2025-07-10T06:00:00.000Z	32 \| good	3.597 \| good	18.365 \| good	34.731 \| good	0.858 \| good	23.576 \| good	0.445 \| good
2025-07-10T07:00:00.000Z	32 \| good	4.136 \| good	23.035 \| good	34.621 \| good	0.789 \| good	23.82 \| good	0.289 \| good
2025-07-10T08:00:00.000Z	28 \| good	3.686 \| good	16.308 \| good	29.82 \| good	0.812 \| good	25.994 \| good	0.321 \| good
2025-07-10T09:00:00.000Z	31 \| good	4.697 \| good	22.596 \| good	32.665 \| good	0.651 \| good	12.961 \| good	0.185 \| good
2025-07-10T10:00:00.000Z	29 \| good	3.936 \| good	18.196 \| good	31.329 \| good	0.493 \| good	12.321 \| good	0.152 \| good
2025-07-10T11:00:00.000Z	29 \| good	3.64 \| good	20.127 \| good	30.74 \| good	0.554 \| good	14.999 \| good	0.152 \| good
2025-07-10T12:00:00.000Z	27 \| good	2.288 \| good	10.887 \| good	29.427 \| good	0.636 \| good	17.845 \| good	0.289 \| good
2025-07-10T13:00:00.000Z	25 \| good	4.257 \| good	20.496 \| good	26.723 \| good	0.693 \| good	20.179 \| good	0.362 \| good
2025-07-10T14:00:00.000Z	33 \| good	5.179 \| good	36.308 \| good	26.717 \| good	0.781 \| good	26.177 \| good	0.374 \| good
2025-07-10T15:00:00.000Z	30 \| good	4.509 \| good	23.008 \| good	31.569 \| good	1 \| good	24.218 \| good	0.321 \| good
2025-07-10T16:00:00.000Z	31 \| good	3.21 \| good	16.645 \| good	34.115 \| good	0.806 \| good	21.502 \| good	0.266 \| good
2025-07-10T17:00:00.000Z	36 \| good	2.897 \| good	14.33 \| good	38.926 \| good	0.679 \| good	9.532 \| good	0.183 \| good
2025-07-10T18:00:00.000Z	35 \| good	2.753 \| good	13.634 \| good	38.375 \| good	0.695 \| good	9.554 \| good	0.149 \| good
2025-07-10T19:00:00.000Z	36 \| good	3.809 \| good	20.294 \| good	39.067 \| good	0.598 \| good	12.189 \| good	0.288 \| good
2025-07-10T20:00:00.000Z	38 \| good	5.244 \| good	25.794 \| good	41.013 \| good	0.676 \| good	11.051 \| good	0.3 \| good
2025-07-10T21:00:00.000Z	49 \| good	8.628 \| good	30.895 \| good	39.165 \| good	0.549 \| good	10.282 \| good	0.231 \| good
2025-07-10T22:00:00.000Z	56 \| moderate	12.245 \| fine	38.833 \| good	41.882 \| good	0.579 \| good	15.737 \| good	0.329 \| good
2025-07-10T23:00:00.000Z	54 \| moderate	10.936 \| good	40.112 \| good	41.242 \| good	0.593 \| good	12.659 \| good	0.289 \| good
2025-07-11T00:00:00.000Z	52 \| moderate	10.086 \| good	33.442 \| good	44.759 \| good	0.669 \| good	9.471 \| good	0.24 \| good
2025-07-11T01:00:00.000Z	52 \| moderate	10.296 \| good	40.835 \| good	46.682 \| good	0.665 \| good	8.196 \| good	0.191 \| good
2025-07-11T02:00:00.000Z	44 \| good	7.526 \| good	28.144 \| good	46.659 \| good	0.844 \| good	10.555 \| good	0.239 \| good
2025-07-11T03:00:00.000Z	43 \| good	6.145 \| good	22.584 \| good	45.957 \| good	0.611 \| good	11.841 \| good	0.231 \| good
2025-07-11T04:00:00.000Z	39 \| good	5.331 \| good	21.344 \| good	42.47 \| good	0.487 \| good	16.261 \| good	0.324 \| good
2025-07-11T05:00:00.000Z	36 \| good	4.752 \| good	24.865 \| good	38.677 \| good	0.507 \| good	18.114 \| good	0.357 \| good
2025-07-11T06:00:00.000Z	38 \| good	7.311 \| good	29.45 \| good	38.072 \| good	0.602 \| good	18.073 \| good	0.315 \| good
2025-07-11T07:00:00.000Z	36 \| good	6.087 \| good	25.607 \| good	39.423 \| good	0.723 \| good	19.558 \| good	0.316 \| good
2025-07-11T08:00:00.000Z	36 \| good	6.143 \| good	27.646 \| good	38.669 \| good	0.817 \| good	16.253 \| good	0.262 \| good
2025-07-11T09:00:00.000Z	36 \| good	5.948 \| good	19.243 \| good	39.354 \| good	0.7 \| good	12.522 \| good	0.183 \| good
2025-07-11T10:00:00.000Z	38 \| good	7.141 \| good	26.293 \| good	40.314 \| good	0.528 \| good	10.98 \| good	0.191 \| good
2025-07-11T11:00:00.000Z	36 \| good	5.95 \| good	19.29 \| good	39.052 \| good	0.634 \| good	10.955 \| good	0.157 \| good
2025-07-11T12:00:00.000Z	38 \| good	6.576 \| good	24.045 \| good	36.194 \| good	0.657 \| good	17.73 \| good	0.311 \| good
2025-07-11T13:00:00.000Z	38 \| good	6.806 \| good	28.724 \| good	33.534 \| good	0.788 \| good	23.534 \| good	0.506 \| good
2025-07-11T14:00:00.000Z	38 \| good	7.084 \| good	35.695 \| good	31.913 \| good	0.815 \| good	22.821 \| good	0.401 \| good
2025-07-11T15:00:00.000Z	38 \| good	7.282 \| good	29.981 \| good	36.417 \| good	0.683 \| good	19.579 \| good	0.296 \| good
2025-07-11T16:00:00.000Z	55 \| moderate	6.883 \| good	63.908 \| fine	41.872 \| good	0.669 \| good	17.59 \| good	0.288 \| good
2025-07-11T17:00:00.000Z	41 \| good	7.46 \| good	34.45 \| good	44.027 \| good	0.825 \| good	16.864 \| good	0.322 \| good
2025-07-11T18:00:00.000Z	46 \| good	7.021 \| good	34.463 \| good	50.159 \| good	0.716 \| good	14.66 \| good	0.276 \| good
2025-07-11T18:00:00.000Z	46 \| good	7.021 \| good	34.463 \| good	50.159 \| good	0.716 \| good	14.66 \| good	0.276 \| good
2025-07-10T07:00:00.000Z	37 \| good	4.875 \| good	21.086 \| good	39.752 \| good	0.668 \| good	11.808 \| good	0.182 \| good
2025-07-10T08:00:00.000Z	40 \| good	2.13 \| good	8.795 \| good	42.923 \| good	0.695 \| good	10.941 \| good	0.178 \| good
2025-07-10T09:00:00.000Z	35 \| good	3.391 \| good	14.611 \| good	38.061 \| good	0.722 \| good	10.074 \| good	0.174 \| good
2025-07-10T10:00:00.000Z	38 \| good	7.265 \| good	32.105 \| good	35.817 \| good	0.62 \| good	7.365 \| good	0.145 \| good
2025-07-10T11:00:00.000Z	38 \| good	7.103 \| good	31.519 \| good	35.689 \| good	0.517 \| good	4.655 \| good	0.116 \| good
2025-07-10T12:00:00.000Z	32 \| good	5.09 \| good	21.943 \| good	34.532 \| good	0.415 \| good	1.946 \| good	0.086 \| good
2025-07-10T13:00:00.000Z	32 \| good	5.125 \| good	21.974 \| good	34.591 \| good	0.468 \| good	2.072 \| good	0.09 \| good
2025-07-10T14:00:00.000Z	33 \| good	4.032 \| good	17.706 \| good	36.396 \| good	0.52 \| good	2.198 \| good	0.095 \| good
2025-07-10T15:00:00.000Z	35 \| good	2.212 \| good	9.106 \| good	38.474 \| good	0.573 \| good	2.324 \| good	0.099 \| good
2025-07-10T16:00:00.000Z	40 \| good	1.551 \| good	6 \| good	43.319 \| good	0.502 \| good	1.769 \| good	0.094 \| good
2025-07-10T17:00:00.000Z	42 \| good	0.671 \| good	2.066 \| good	44.521 \| good	0.43 \| good	1.214 \| good	0.089 \| good
2025-07-10T18:00:00.000Z	39 \| good	1.464 \| good	5.742 \| good	42.123 \| good	0.358 \| good	0.659 \| good	0.085 \| good
2025-07-10T19:00:00.000Z	43 \| good	1.183 \| good	4.827 \| good	45.879 \| good	0.339 \| good	0.731 \| good	0.086 \| good
2025-07-10T20:00:00.000Z	44 \| good	4.056 \| good	17.735 \| good	48.451 \| good	0.32 \| good	0.804 \| good	0.087 \| good
2025-07-10T21:00:00.000Z	67 \| moderate	5.4 \| good	23.765 \| good	60.033 \| fine	0.301 \| good	0.876 \| good	0.088 \| good
2025-07-10T22:00:00.000Z	80 \| moderate	21.795 \| fine	96.026 \| fine	63.964 \| fine	0.33 \| good	1.086 \| good	0.089 \| good
2025-07-10T23:00:00.000Z	96 \| moderate	33.021 \| fine	143.754 \| fine	52.901 \| good	0.359 \| good	1.296 \| good	0.09 \| good
2025-07-11T00:00:00.000Z	39 \| good	0.818 \| good	2.911 \| good	41.84 \| good	0.388 \| good	1.506 \| good	0.092 \| good
2025-07-11T01:00:00.000Z	36 \| good	2.242 \| good	9.225 \| good	38.928 \| good	0.466 \| good	3.244 \| good	0.105 \| good
2025-07-11T02:00:00.000Z	41 \| good	2.498 \| good	10.155 \| good	44.431 \| good	0.544 \| good	4.983 \| good	0.118 \| good
2025-07-11T03:00:00.000Z	38 \| good	4.987 \| good	21.55 \| good	41.413 \| good	0.622 \| good	6.721 \| good	0.131 \| good
2025-07-11T04:00:00.000Z	37 \| good	4.991 \| good	21.785 \| good	39.962 \| good	0.644 \| good	9.497 \| good	0.156 \| good
2025-07-11T05:00:00.000Z	36 \| good	3.892 \| good	16.999 \| good	38.735 \| good	0.665 \| good	12.273 \| good	0.181 \| good
2025-07-11T06:00:00.000Z	34 \| good	2.957 \| good	12.683 \| good	37.381 \| good	0.686 \| good	15.049 \| good	0.206 \| good
2025-07-11T07:00:00.000Z	33 \| good	2.421 \| good	10.097 \| good	35.883 \| good	0.646 \| good	14.149 \| good	0.203 \| good
2025-07-11T08:00:00.000Z	33 \| good	2.794 \| good	11.437 \| good	36.263 \| good	0.606 \| good	13.249 \| good	0.2 \| good
2025-07-11T09:00:00.000Z	32 \| good	3.029 \| good	12.931 \| good	35.499 \| good	0.566 \| good	12.35 \| good	0.197 \| good
2025-07-11T10:00:00.000Z	33 \| good	3.288 \| good	14.234 \| good	36.414 \| good	0.532 \| good	11.274 \| good	0.19 \| good
2025-07-11T11:00:00.000Z	35 \| good	2.415 \| good	10 \| good	38.414 \| good	0.499 \| good	10.198 \| good	0.184 \| good
2025-07-11T12:00:00.000Z	29 \| good	4.097 \| good	17.818 \| good	30.576 \| good	0.465 \| good	9.123 \| good	0.177 \| good
2025-07-11T13:00:00.000Z	38 \| good	6.553 \| good	29.216 \| good	30.669 \| good	0.688 \| good	7.224 \| good	0.159 \| good
2025-07-11T14:00:00.000Z	38 \| good	6.96 \| good	30.698 \| good	37.119 \| good	0.911 \| good	5.325 \| good	0.142 \| good
2025-07-11T15:00:00.000Z	40 \| good	5.512 \| good	23.769 \| good	43.428 \| good	1.134 \| good	3.426 \| good	0.124 \| good
2025-07-11T16:00:00.000Z	44 \| good	2.877 \| good	11.95 \| good	47.935 \| good	0.944 \| good	2.604 \| good	0.117 \| good
2025-07-11T17:00:00.000Z	51 \| moderate	2.722 \| good	11.167 \| good	54.574 \| good	0.754 \| good	1.781 \| good	0.109 \| good
2025-07-11T18:00:00.000Z	71 \| moderate	2.547 \| good	10.268 \| good	61.178 \| fine	0.563 \| good	0.959 \| good	0.102 \| good
2025-07-11T19:00:00.000Z	67 \| moderate	3.81 \| good	16.821 \| good	60.014 \| fine	0.504 \| good	0.95 \| good	0.101 \| good
2025-07-11T20:00:00.000Z	64 \| moderate	4.599 \| good	20.3 \| good	59.338 \| fine	0.444 \| good	0.941 \| good	0.101 \| good
2025-07-11T21:00:00.000Z	61 \| moderate	6.786 \| good	30.259 \| good	57.929 \| fine	0.385 \| good	0.933 \| good	0.1 \| good
2025-07-11T22:00:00.000Z	49 \| good	6.513 \| good	28.704 \| good	52.911 \| good	0.391 \| good	1.088 \| good	0.102 \| good
2025-07-11T23:00:00.000Z	45 \| good	4.969 \| good	21.503 \| good	49.439 \| good	0.397 \| good	1.243 \| good	0.103 \| good
2025-07-12T00:00:00.000Z	50 \| good	5.467 \| good	23.975 \| good	53.955 \| good	0.404 \| good	1.398 \| good	0.104 \| good
2025-07-12T01:00:00.000Z	44 \| good	5.635 \| good	24.803 \| good	48.313 \| good	0.408 \| good	2.509 \| good	0.113 \| good
2025-07-12T02:00:00.000Z	40 \| good	6.077 \| good	26.672 \| good	43.073 \| good	0.413 \| good	3.619 \| good	0.121 \| good
2025-07-12T03:00:00.000Z	38 \| good	4.9 \| good	21.203 \| good	40.839 \| good	0.418 \| good	4.73 \| good	0.129 \| good
2025-07-12T04:00:00.000Z	37 \| good	2.777 \| good	11.565 \| good	40.174 \| good	0.511 \| good	4.707 \| good	0.129 \| good
2025-07-12T05:00:00.000Z	38 \| good	2.722 \| good	11.195 \| good	40.882 \| good	0.604 \| good	4.684 \| good	0.129 \| good
2025-07-12T06:00:00.000Z	45 \| good	6.303 \| good	7.989 \| good	48.682 \| good	0.699 \| good	4.674 \| good	0.129 \| good

Live air quality index in Centennial, Colorado today

Major air pollutants in Centennial, Colorado

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Centennial, Colorado air quality forecast and history

Get reliable air quality data to drive your business

Centennial, Colorado air quality map: Track AQI near you

Air quality in nearby cities

Lone Tree, Colorado

Greenwood Village, Colorado

Highlands Ranch, Colorado

Four Square Mile, Colorado

Englewood, Colorado

Parker, 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 Centennial, Colorado updated?

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

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

What is the current air quality in Centennial, Colorado?

What pollutant is the most common in Centennial, Colorado?

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

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

What is the current concentration of PM10 in Centennial, Colorado?

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

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

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

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

What is the current concentration of PM₁₀ in Centennial, Colorado?

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

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

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