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

The current PM10 concentration at Centennial, Colorado is 33.391 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Centennial, Colorado is 0.403 ppb.

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

The current ozone (O3) concentration at Centennial, Colorado is 30.491 ppm.

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

The current nitrogen dioxide (NO2) concentration at Centennial, Colorado is 23.506 ppb.

Centennial, Colorado live air quality index now

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)

5.07 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

30.20 μg/m³

155

255

425

605+

Ozone (O₃)

27.47 ppb

201

201+

Sulfur Dioxide (SO₂)

0.35 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

18.73 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.36 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
2025-10-20T08:00:00.000Z	41 \| good	1.522 \| good	6.242 \| good	43.601 \| good	0.751 \| good	15.132 \| good	0.298 \| good
2025-10-20T09:00:00.000Z	41 \| good	1.589 \| good	5.13 \| good	43.578 \| good	0.557 \| good	12.24 \| good	0.203 \| good
2025-10-20T10:00:00.000Z	43 \| good	1.529 \| good	4.789 \| good	46.289 \| good	0.486 \| good	14.895 \| good	0.196 \| good
2025-10-20T11:00:00.000Z	41 \| good	2.851 \| good	24.398 \| good	43.817 \| good	0.595 \| good	19.079 \| good	0.149 \| good
2025-10-20T12:00:00.000Z	38 \| good	2.394 \| good	15.835 \| good	40.756 \| good	0.528 \| good	21.069 \| good	0.149 \| good
2025-10-20T13:00:00.000Z	36 \| good	2.927 \| good	14.578 \| good	39.313 \| good	0.379 \| good	13.733 \| good	0.183 \| good
2025-10-20T14:00:00.000Z	35 \| good	3.589 \| good	28.01 \| good	37.813 \| good	0.333 \| good	17.957 \| good	0.296 \| good
2025-10-20T15:00:00.000Z	38 \| good	3.378 \| good	41.49 \| good	35.624 \| good	0.332 \| good	10.958 \| good	0.198 \| good
2025-10-20T16:00:00.000Z	34 \| good	4.74 \| good	23.205 \| good	36.744 \| good	0.482 \| good	8.405 \| good	0.198 \| good
2025-10-20T17:00:00.000Z	34 \| good	3.879 \| good	20.069 \| good	37.103 \| good	0.309 \| good	7.488 \| good	0.196 \| good
2025-10-20T18:00:00.000Z	35 \| good	3.665 \| good	20.04 \| good	38.118 \| good	0.298 \| good	8.206 \| good	0.196 \| good
2025-10-20T19:00:00.000Z	37 \| good	3.352 \| good	19.332 \| good	39.599 \| good	0.297 \| good	7.658 \| good	0.196 \| good
2025-10-20T20:00:00.000Z	38 \| good	3.064 \| good	16.559 \| good	41.39 \| good	0.28 \| good	8.939 \| good	0.196 \| good
2025-10-20T21:00:00.000Z	39 \| good	2.619 \| good	13.765 \| good	42.035 \| good	0.279 \| good	9.979 \| good	0.196 \| good
2025-10-20T22:00:00.000Z	41 \| good	2.519 \| good	14.664 \| good	44.468 \| good	0.303 \| good	11.562 \| good	0.244 \| good
2025-10-20T23:00:00.000Z	40 \| good	2.324 \| good	10.081 \| good	43.259 \| good	0.303 \| good	11.718 \| good	0.229 \| good
2025-10-21T00:00:00.000Z	40 \| good	2.244 \| good	13.922 \| good	43.281 \| good	0.292 \| good	12.094 \| good	0.229 \| good
2025-10-21T01:00:00.000Z	39 \| good	2.646 \| good	15.742 \| good	41.889 \| good	0.29 \| good	12.788 \| good	0.229 \| good
2025-10-21T02:00:00.000Z	38 \| good	2.965 \| good	14.836 \| good	41.348 \| good	0.509 \| good	11.455 \| good	0.188 \| good
2025-10-21T03:00:00.000Z	32 \| good	2.854 \| good	11.833 \| good	35.351 \| good	0.694 \| good	14.603 \| good	0.183 \| good
2025-10-21T04:00:00.000Z	35 \| good	3.291 \| good	16.311 \| good	38.316 \| good	0.272 \| good	15.974 \| good	0.277 \| good
2025-10-21T05:00:00.000Z	33 \| good	3.566 \| good	19.066 \| good	35.775 \| good	0.791 \| good	16.247 \| good	0.284 \| good
2025-10-21T06:00:00.000Z	31 \| good	3.372 \| good	16.151 \| good	34.23 \| good	0.515 \| good	17 \| good	0.284 \| good
2025-10-21T07:00:00.000Z	29 \| good	3.323 \| good	13.266 \| good	31.384 \| good	0.268 \| good	18.687 \| good	0.203 \| good
2025-10-21T08:00:00.000Z	28 \| good	3.935 \| good	14.67 \| good	29.729 \| good	0.77 \| good	19.723 \| good	0.236 \| good
2025-10-21T09:00:00.000Z	27 \| good	3.559 \| good	16.335 \| good	29.299 \| good	0.684 \| good	16.455 \| good	0.236 \| good
2025-10-21T10:00:00.000Z	27 \| good	4.686 \| good	22.309 \| good	25.856 \| good	0.509 \| good	20.604 \| good	0.196 \| good
2025-10-21T11:00:00.000Z	27 \| good	4.541 \| good	23.226 \| good	25.862 \| good	0.458 \| good	19.627 \| good	0.236 \| good
2025-10-21T12:00:00.000Z	28 \| good	4.979 \| good	23.951 \| good	29.949 \| good	0.597 \| good	21.96 \| good	0.252 \| good
2025-10-21T13:00:00.000Z	27 \| good	4.699 \| good	23.334 \| good	29.045 \| good	0.718 \| good	28.096 \| good	0.381 \| good
2025-10-21T14:00:00.000Z	32 \| good	4.925 \| good	22.698 \| good	27.483 \| good	0.754 \| good	33.998 \| good	0.605 \| good
2025-10-21T15:00:00.000Z	38 \| good	7.33 \| good	35.985 \| good	33.908 \| good	0.983 \| good	30.826 \| good	0.603 \| good
2025-10-21T16:00:00.000Z	38 \| good	6.849 \| good	38.544 \| good	37.698 \| good	0.846 \| good	26.498 \| good	0.385 \| good
2025-10-21T17:00:00.000Z	35 \| good	5.399 \| good	26.338 \| good	38.247 \| good	0.743 \| good	23.588 \| good	0.277 \| good
2025-10-21T18:00:00.000Z	37 \| good	4.924 \| good	33.678 \| good	39.642 \| good	0.651 \| good	20.703 \| good	0.196 \| good
2025-10-21T19:00:00.000Z	41 \| good	3.651 \| good	29.635 \| good	44.038 \| good	0.562 \| good	16.935 \| good	0.188 \| good
2025-10-21T20:00:00.000Z	43 \| good	3.495 \| good	28.471 \| good	45.936 \| good	1.052 \| good	16.076 \| good	0.221 \| good
2025-10-21T21:00:00.000Z	44 \| good	2.604 \| good	20.288 \| good	47.67 \| good	0.767 \| good	16.598 \| good	0.269 \| good
2025-10-21T22:00:00.000Z	44 \| good	3.287 \| good	32.872 \| good	46.786 \| good	0.67 \| good	15.441 \| good	0.236 \| good
2025-10-21T23:00:00.000Z	43 \| good	2.914 \| good	35.011 \| good	46.413 \| good	0.59 \| good	15.865 \| good	0.236 \| good
2025-10-22T00:00:00.000Z	39 \| good	3.237 \| good	21.939 \| good	42.355 \| good	0.702 \| good	19.093 \| good	0.25 \| good
2025-10-22T01:00:00.000Z	36 \| good	5.187 \| good	34.675 \| good	39.02 \| good	0.666 \| good	36.09 \| good	0.57 \| good
2025-10-22T02:00:00.000Z	42 \| good	6.352 \| good	45.007 \| good	39.243 \| good	0.866 \| good	31.856 \| good	0.564 \| good
2025-10-22T03:00:00.000Z	60 \| moderate	13.51 \| fine	60.596 \| fine	16.51 \| good	0.973 \| good	20.611 \| good	0.234 \| good
2025-10-22T04:00:00.000Z	43 \| good	6.119 \| good	45.859 \| good	32.15 \| good	0.434 \| good	25.527 \| good	0.353 \| good
2025-10-22T05:00:00.000Z	33 \| good	6.118 \| good	32.965 \| good	30.552 \| good	0.403 \| good	23.623 \| good	0.298 \| good
2025-10-22T06:00:00.000Z	28 \| good	5.028 \| good	29.783 \| good	27.535 \| good	0.345 \| good	18.801 \| good	0.358 \| good
2025-10-22T07:00:00.000Z	28 \| good	5.068 \| good	30.204 \| good	27.469 \| good	0.346 \| good	18.728 \| good	0.358 \| good
2025-10-22T07:00:00.000Z	38 \| good	6.522 \| good	29.216 \| good	21.645 \| good	0.874 \| good	22.213 \| good	0.271 \| good
2025-10-22T08:00:00.000Z	27 \| good	4.565 \| good	19.886 \| good	24.868 \| good	0.736 \| good	20.906 \| good	0.264 \| good
2025-10-22T09:00:00.000Z	25 \| good	3.28 \| good	13.719 \| good	27.241 \| good	0.598 \| good	19.6 \| good	0.258 \| good
2025-10-22T10:00:00.000Z	27 \| good	2.23 \| good	9.318 \| good	28.892 \| good	0.539 \| good	18.356 \| good	0.246 \| good
2025-10-22T11:00:00.000Z	26 \| good	1.256 \| good	4.833 \| good	27.508 \| good	0.479 \| good	17.112 \| good	0.234 \| good
2025-10-22T12:00:00.000Z	20 \| good	1.659 \| good	6.667 \| good	21.891 \| good	0.419 \| good	15.869 \| good	0.222 \| good
2025-10-22T13:00:00.000Z	18 \| good	3.483 \| good	14.378 \| good	18.831 \| good	0.511 \| good	14.977 \| good	0.25 \| good
2025-10-22T14:00:00.000Z	22 \| good	4.116 \| good	17.745 \| good	21.292 \| good	0.602 \| good	14.085 \| good	0.278 \| good
2025-10-22T15:00:00.000Z	27 \| good	4.685 \| good	20.738 \| good	26.302 \| good	0.694 \| good	13.193 \| good	0.306 \| good
2025-10-22T16:00:00.000Z	33 \| good	5.673 \| good	24.62 \| good	30.673 \| good	0.935 \| good	10.474 \| good	0.253 \| good
2025-10-22T17:00:00.000Z	35 \| good	5.875 \| good	25.524 \| good	37.545 \| good	1.177 \| good	7.755 \| good	0.201 \| good
2025-10-22T18:00:00.000Z	44 \| good	7.714 \| good	33.866 \| good	42.559 \| good	1.418 \| good	5.036 \| good	0.148 \| good
2025-10-22T19:00:00.000Z	44 \| good	7.81 \| good	34.383 \| good	45.023 \| good	1.226 \| good	4.238 \| good	0.141 \| good
2025-10-22T20:00:00.000Z	44 \| good	7.643 \| good	33.429 \| good	47.542 \| good	1.034 \| good	3.44 \| good	0.133 \| good
2025-10-22T21:00:00.000Z	45 \| good	7.146 \| good	31.498 \| good	49.007 \| good	0.843 \| good	2.642 \| good	0.126 \| good
2025-10-22T22:00:00.000Z	45 \| good	7.284 \| good	32.361 \| good	48.642 \| good	0.765 \| good	3.903 \| good	0.134 \| good
2025-10-22T23:00:00.000Z	44 \| good	7.647 \| good	33.685 \| good	43.828 \| good	0.687 \| good	5.164 \| good	0.141 \| good
2025-10-23T00:00:00.000Z	32 \| good	5.493 \| good	24.066 \| good	35.016 \| good	0.609 \| good	6.425 \| good	0.149 \| good
2025-10-23T01:00:00.000Z	33 \| good	5.832 \| good	25.161 \| good	29.999 \| good	0.777 \| good	12.063 \| good	0.192 \| good
2025-10-23T02:00:00.000Z	33 \| good	5.891 \| good	25.512 \| good	27.615 \| good	0.944 \| good	17.7 \| good	0.234 \| good
2025-10-23T03:00:00.000Z	38 \| good	7.292 \| good	31.937 \| good	26.319 \| good	1.111 \| good	23.338 \| good	0.277 \| good
2025-10-23T04:00:00.000Z	44 \| good	8.472 \| good	37.944 \| good	26.03 \| good	1.09 \| good	22.499 \| good	0.287 \| good
2025-10-23T05:00:00.000Z	44 \| good	7.735 \| good	34.023 \| good	26.65 \| good	1.069 \| good	21.66 \| good	0.298 \| good
2025-10-23T06:00:00.000Z	27 \| good	4.564 \| good	19.622 \| good	27.671 \| good	1.047 \| good	20.822 \| good	0.308 \| good
2025-10-23T07:00:00.000Z	25 \| good	3.666 \| good	15.686 \| good	26.898 \| good	0.889 \| good	18.651 \| good	0.287 \| good
2025-10-23T08:00:00.000Z	25 \| good	2.747 \| good	11.163 \| good	26.941 \| good	0.73 \| good	16.48 \| good	0.267 \| good
2025-10-23T09:00:00.000Z	24 \| good	2.032 \| good	8.683 \| good	26.124 \| good	0.571 \| good	14.31 \| good	0.246 \| good
2025-10-23T10:00:00.000Z	25 \| good	2.201 \| good	8.885 \| good	26.582 \| good	0.535 \| good	12.697 \| good	0.229 \| good
2025-10-23T11:00:00.000Z	21 \| good	2.049 \| good	8.537 \| good	22.682 \| good	0.498 \| good	11.084 \| good	0.211 \| good
2025-10-23T12:00:00.000Z	18 \| good	1.886 \| good	7.928 \| good	18.827 \| good	0.461 \| good	9.472 \| good	0.194 \| good
2025-10-23T13:00:00.000Z	22 \| good	4.188 \| good	18.226 \| good	16.648 \| good	0.537 \| good	9.714 \| good	0.218 \| good
2025-10-23T14:00:00.000Z	27 \| good	4.967 \| good	21.694 \| good	16.08 \| good	0.613 \| good	9.957 \| good	0.242 \| good
2025-10-23T15:00:00.000Z	20 \| good	3.183 \| good	13.651 \| good	21.609 \| good	0.69 \| good	10.199 \| good	0.266 \| good
2025-10-23T16:00:00.000Z	38 \| good	7.391 \| good	32.381 \| good	23.416 \| good	0.931 \| good	8.889 \| good	0.232 \| good
2025-10-23T17:00:00.000Z	54 \| moderate	11.494 \| good	51.117 \| good	27.903 \| good	1.172 \| good	7.58 \| good	0.198 \| good
2025-10-23T18:00:00.000Z	58 \| moderate	13.383 \| fine	60.405 \| fine	33.255 \| good	1.413 \| good	6.27 \| good	0.164 \| good
2025-10-23T19:00:00.000Z	54 \| moderate	10.745 \| good	47.74 \| good	37.294 \| good	1.349 \| good	5.737 \| good	0.157 \| good
2025-10-23T20:00:00.000Z	44 \| good	7.908 \| good	34.708 \| good	40.294 \| good	1.285 \| good	5.204 \| good	0.15 \| good
2025-10-23T21:00:00.000Z	40 \| good	6.736 \| good	29.95 \| good	42.945 \| good	1.222 \| good	4.672 \| good	0.142 \| good
2025-10-23T22:00:00.000Z	40 \| good	6.747 \| good	29.753 \| good	43.215 \| good	1.171 \| good	6.139 \| good	0.151 \| good
2025-10-23T23:00:00.000Z	52 \| moderate	9.95 \| good	43.976 \| good	39.615 \| good	1.12 \| good	7.606 \| good	0.16 \| good
2025-10-24T00:00:00.000Z	56 \| moderate	12.015 \| good	53.621 \| good	34.205 \| good	1.069 \| good	9.073 \| good	0.168 \| good
2025-10-24T01:00:00.000Z	58 \| moderate	13.431 \| fine	60.713 \| fine	26.863 \| good	1.098 \| good	12.281 \| good	0.191 \| good
2025-10-24T02:00:00.000Z	62 \| moderate	15.416 \| fine	68.679 \| fine	22.755 \| good	1.128 \| good	15.489 \| good	0.214 \| good
2025-10-24T03:00:00.000Z	58 \| moderate	13.44 \| fine	60.382 \| fine	25.121 \| good	1.157 \| good	18.698 \| good	0.236 \| good
2025-10-24T04:00:00.000Z	52 \| moderate	10.482 \| good	46.525 \| good	25.248 \| good	1.116 \| good	18.993 \| good	0.241 \| good
2025-10-24T05:00:00.000Z	52 \| moderate	10.065 \| good	44.687 \| good	28.872 \| good	1.075 \| good	19.287 \| good	0.245 \| good
2025-10-24T06:00:00.000Z	52 \| moderate	10.02 \| good	10.548 \| good	15.977 \| good	1.052 \| good	20.12 \| good	0.253 \| good

Centennial

Get reliable air quality data to drive your business

Centennial, Colorado air quality map: Track AQI near you

0.27ppm

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

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 01:00:00 on 2025-10-21.

What is the current air quality in Centennial, Colorado?

The current air quality in Centennial, Colorado is 33, 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 PM2.5.

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 6.22 μg/m³.

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

The current PM₁₀ concentration at Centennial, Colorado is 33.391 μg/m³.

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

The current carbon monoxide (CO) concentration at Centennial, Colorado is 0.298 ppm.

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

The current sulfur dioxide (SO₂) concentration at Centennial, Colorado is 0.403 ppb.

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

The current ozone (O₃) concentration at Centennial, Colorado is 30.491 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Centennial, Colorado is 23.506 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-10-20T08:00:00.000Z	41 \| good	1.522 \| good	6.242 \| good	43.601 \| good	0.751 \| good	15.132 \| good	0.298 \| good
2025-10-20T09:00:00.000Z	41 \| good	1.589 \| good	5.13 \| good	43.578 \| good	0.557 \| good	12.24 \| good	0.203 \| good
2025-10-20T10:00:00.000Z	43 \| good	1.529 \| good	4.789 \| good	46.289 \| good	0.486 \| good	14.895 \| good	0.196 \| good
2025-10-20T11:00:00.000Z	41 \| good	2.851 \| good	24.398 \| good	43.817 \| good	0.595 \| good	19.079 \| good	0.149 \| good
2025-10-20T12:00:00.000Z	38 \| good	2.394 \| good	15.835 \| good	40.756 \| good	0.528 \| good	21.069 \| good	0.149 \| good
2025-10-20T13:00:00.000Z	36 \| good	2.927 \| good	14.578 \| good	39.313 \| good	0.379 \| good	13.733 \| good	0.183 \| good
2025-10-20T14:00:00.000Z	35 \| good	3.589 \| good	28.01 \| good	37.813 \| good	0.333 \| good	17.957 \| good	0.296 \| good
2025-10-20T15:00:00.000Z	38 \| good	3.378 \| good	41.49 \| good	35.624 \| good	0.332 \| good	10.958 \| good	0.198 \| good
2025-10-20T16:00:00.000Z	34 \| good	4.74 \| good	23.205 \| good	36.744 \| good	0.482 \| good	8.405 \| good	0.198 \| good
2025-10-20T17:00:00.000Z	34 \| good	3.879 \| good	20.069 \| good	37.103 \| good	0.309 \| good	7.488 \| good	0.196 \| good
2025-10-20T18:00:00.000Z	35 \| good	3.665 \| good	20.04 \| good	38.118 \| good	0.298 \| good	8.206 \| good	0.196 \| good
2025-10-20T19:00:00.000Z	37 \| good	3.352 \| good	19.332 \| good	39.599 \| good	0.297 \| good	7.658 \| good	0.196 \| good
2025-10-20T20:00:00.000Z	38 \| good	3.064 \| good	16.559 \| good	41.39 \| good	0.28 \| good	8.939 \| good	0.196 \| good
2025-10-20T21:00:00.000Z	39 \| good	2.619 \| good	13.765 \| good	42.035 \| good	0.279 \| good	9.979 \| good	0.196 \| good
2025-10-20T22:00:00.000Z	41 \| good	2.519 \| good	14.664 \| good	44.468 \| good	0.303 \| good	11.562 \| good	0.244 \| good
2025-10-20T23:00:00.000Z	40 \| good	2.324 \| good	10.081 \| good	43.259 \| good	0.303 \| good	11.718 \| good	0.229 \| good
2025-10-21T00:00:00.000Z	40 \| good	2.244 \| good	13.922 \| good	43.281 \| good	0.292 \| good	12.094 \| good	0.229 \| good
2025-10-21T01:00:00.000Z	39 \| good	2.646 \| good	15.742 \| good	41.889 \| good	0.29 \| good	12.788 \| good	0.229 \| good
2025-10-21T02:00:00.000Z	38 \| good	2.965 \| good	14.836 \| good	41.348 \| good	0.509 \| good	11.455 \| good	0.188 \| good
2025-10-21T03:00:00.000Z	32 \| good	2.854 \| good	11.833 \| good	35.351 \| good	0.694 \| good	14.603 \| good	0.183 \| good
2025-10-21T04:00:00.000Z	35 \| good	3.291 \| good	16.311 \| good	38.316 \| good	0.272 \| good	15.974 \| good	0.277 \| good
2025-10-21T05:00:00.000Z	33 \| good	3.566 \| good	19.066 \| good	35.775 \| good	0.791 \| good	16.247 \| good	0.284 \| good
2025-10-21T06:00:00.000Z	31 \| good	3.372 \| good	16.151 \| good	34.23 \| good	0.515 \| good	17 \| good	0.284 \| good
2025-10-21T07:00:00.000Z	29 \| good	3.323 \| good	13.266 \| good	31.384 \| good	0.268 \| good	18.687 \| good	0.203 \| good
2025-10-21T08:00:00.000Z	28 \| good	3.935 \| good	14.67 \| good	29.729 \| good	0.77 \| good	19.723 \| good	0.236 \| good
2025-10-21T09:00:00.000Z	27 \| good	3.559 \| good	16.335 \| good	29.299 \| good	0.684 \| good	16.455 \| good	0.236 \| good
2025-10-21T10:00:00.000Z	27 \| good	4.686 \| good	22.309 \| good	25.856 \| good	0.509 \| good	20.604 \| good	0.196 \| good
2025-10-21T11:00:00.000Z	27 \| good	4.541 \| good	23.226 \| good	25.862 \| good	0.458 \| good	19.627 \| good	0.236 \| good
2025-10-21T12:00:00.000Z	28 \| good	4.979 \| good	23.951 \| good	29.949 \| good	0.597 \| good	21.96 \| good	0.252 \| good
2025-10-21T13:00:00.000Z	27 \| good	4.699 \| good	23.334 \| good	29.045 \| good	0.718 \| good	28.096 \| good	0.381 \| good
2025-10-21T14:00:00.000Z	32 \| good	4.925 \| good	22.698 \| good	27.483 \| good	0.754 \| good	33.998 \| good	0.605 \| good
2025-10-21T15:00:00.000Z	38 \| good	7.33 \| good	35.985 \| good	33.908 \| good	0.983 \| good	30.826 \| good	0.603 \| good
2025-10-21T16:00:00.000Z	38 \| good	6.849 \| good	38.544 \| good	37.698 \| good	0.846 \| good	26.498 \| good	0.385 \| good
2025-10-21T17:00:00.000Z	35 \| good	5.399 \| good	26.338 \| good	38.247 \| good	0.743 \| good	23.588 \| good	0.277 \| good
2025-10-21T18:00:00.000Z	37 \| good	4.924 \| good	33.678 \| good	39.642 \| good	0.651 \| good	20.703 \| good	0.196 \| good
2025-10-21T19:00:00.000Z	41 \| good	3.651 \| good	29.635 \| good	44.038 \| good	0.562 \| good	16.935 \| good	0.188 \| good
2025-10-21T20:00:00.000Z	43 \| good	3.495 \| good	28.471 \| good	45.936 \| good	1.052 \| good	16.076 \| good	0.221 \| good
2025-10-21T21:00:00.000Z	44 \| good	2.604 \| good	20.288 \| good	47.67 \| good	0.767 \| good	16.598 \| good	0.269 \| good
2025-10-21T22:00:00.000Z	44 \| good	3.287 \| good	32.872 \| good	46.786 \| good	0.67 \| good	15.441 \| good	0.236 \| good
2025-10-21T23:00:00.000Z	43 \| good	2.914 \| good	35.011 \| good	46.413 \| good	0.59 \| good	15.865 \| good	0.236 \| good
2025-10-22T00:00:00.000Z	39 \| good	3.237 \| good	21.939 \| good	42.355 \| good	0.702 \| good	19.093 \| good	0.25 \| good
2025-10-22T01:00:00.000Z	36 \| good	5.187 \| good	34.675 \| good	39.02 \| good	0.666 \| good	36.09 \| good	0.57 \| good
2025-10-22T02:00:00.000Z	42 \| good	6.352 \| good	45.007 \| good	39.243 \| good	0.866 \| good	31.856 \| good	0.564 \| good
2025-10-22T03:00:00.000Z	60 \| moderate	13.51 \| fine	60.596 \| fine	16.51 \| good	0.973 \| good	20.611 \| good	0.234 \| good
2025-10-22T04:00:00.000Z	43 \| good	6.119 \| good	45.859 \| good	32.15 \| good	0.434 \| good	25.527 \| good	0.353 \| good
2025-10-22T05:00:00.000Z	33 \| good	6.118 \| good	32.965 \| good	30.552 \| good	0.403 \| good	23.623 \| good	0.298 \| good
2025-10-22T06:00:00.000Z	28 \| good	5.028 \| good	29.783 \| good	27.535 \| good	0.345 \| good	18.801 \| good	0.358 \| good
2025-10-22T07:00:00.000Z	28 \| good	5.068 \| good	30.204 \| good	27.469 \| good	0.346 \| good	18.728 \| good	0.358 \| good
2025-10-22T07:00:00.000Z	38 \| good	6.522 \| good	29.216 \| good	21.645 \| good	0.874 \| good	22.213 \| good	0.271 \| good
2025-10-22T08:00:00.000Z	27 \| good	4.565 \| good	19.886 \| good	24.868 \| good	0.736 \| good	20.906 \| good	0.264 \| good
2025-10-22T09:00:00.000Z	25 \| good	3.28 \| good	13.719 \| good	27.241 \| good	0.598 \| good	19.6 \| good	0.258 \| good
2025-10-22T10:00:00.000Z	27 \| good	2.23 \| good	9.318 \| good	28.892 \| good	0.539 \| good	18.356 \| good	0.246 \| good
2025-10-22T11:00:00.000Z	26 \| good	1.256 \| good	4.833 \| good	27.508 \| good	0.479 \| good	17.112 \| good	0.234 \| good
2025-10-22T12:00:00.000Z	20 \| good	1.659 \| good	6.667 \| good	21.891 \| good	0.419 \| good	15.869 \| good	0.222 \| good
2025-10-22T13:00:00.000Z	18 \| good	3.483 \| good	14.378 \| good	18.831 \| good	0.511 \| good	14.977 \| good	0.25 \| good
2025-10-22T14:00:00.000Z	22 \| good	4.116 \| good	17.745 \| good	21.292 \| good	0.602 \| good	14.085 \| good	0.278 \| good
2025-10-22T15:00:00.000Z	27 \| good	4.685 \| good	20.738 \| good	26.302 \| good	0.694 \| good	13.193 \| good	0.306 \| good
2025-10-22T16:00:00.000Z	33 \| good	5.673 \| good	24.62 \| good	30.673 \| good	0.935 \| good	10.474 \| good	0.253 \| good
2025-10-22T17:00:00.000Z	35 \| good	5.875 \| good	25.524 \| good	37.545 \| good	1.177 \| good	7.755 \| good	0.201 \| good
2025-10-22T18:00:00.000Z	44 \| good	7.714 \| good	33.866 \| good	42.559 \| good	1.418 \| good	5.036 \| good	0.148 \| good
2025-10-22T19:00:00.000Z	44 \| good	7.81 \| good	34.383 \| good	45.023 \| good	1.226 \| good	4.238 \| good	0.141 \| good
2025-10-22T20:00:00.000Z	44 \| good	7.643 \| good	33.429 \| good	47.542 \| good	1.034 \| good	3.44 \| good	0.133 \| good
2025-10-22T21:00:00.000Z	45 \| good	7.146 \| good	31.498 \| good	49.007 \| good	0.843 \| good	2.642 \| good	0.126 \| good
2025-10-22T22:00:00.000Z	45 \| good	7.284 \| good	32.361 \| good	48.642 \| good	0.765 \| good	3.903 \| good	0.134 \| good
2025-10-22T23:00:00.000Z	44 \| good	7.647 \| good	33.685 \| good	43.828 \| good	0.687 \| good	5.164 \| good	0.141 \| good
2025-10-23T00:00:00.000Z	32 \| good	5.493 \| good	24.066 \| good	35.016 \| good	0.609 \| good	6.425 \| good	0.149 \| good
2025-10-23T01:00:00.000Z	33 \| good	5.832 \| good	25.161 \| good	29.999 \| good	0.777 \| good	12.063 \| good	0.192 \| good
2025-10-23T02:00:00.000Z	33 \| good	5.891 \| good	25.512 \| good	27.615 \| good	0.944 \| good	17.7 \| good	0.234 \| good
2025-10-23T03:00:00.000Z	38 \| good	7.292 \| good	31.937 \| good	26.319 \| good	1.111 \| good	23.338 \| good	0.277 \| good
2025-10-23T04:00:00.000Z	44 \| good	8.472 \| good	37.944 \| good	26.03 \| good	1.09 \| good	22.499 \| good	0.287 \| good
2025-10-23T05:00:00.000Z	44 \| good	7.735 \| good	34.023 \| good	26.65 \| good	1.069 \| good	21.66 \| good	0.298 \| good
2025-10-23T06:00:00.000Z	27 \| good	4.564 \| good	19.622 \| good	27.671 \| good	1.047 \| good	20.822 \| good	0.308 \| good
2025-10-23T07:00:00.000Z	25 \| good	3.666 \| good	15.686 \| good	26.898 \| good	0.889 \| good	18.651 \| good	0.287 \| good
2025-10-23T08:00:00.000Z	25 \| good	2.747 \| good	11.163 \| good	26.941 \| good	0.73 \| good	16.48 \| good	0.267 \| good
2025-10-23T09:00:00.000Z	24 \| good	2.032 \| good	8.683 \| good	26.124 \| good	0.571 \| good	14.31 \| good	0.246 \| good
2025-10-23T10:00:00.000Z	25 \| good	2.201 \| good	8.885 \| good	26.582 \| good	0.535 \| good	12.697 \| good	0.229 \| good
2025-10-23T11:00:00.000Z	21 \| good	2.049 \| good	8.537 \| good	22.682 \| good	0.498 \| good	11.084 \| good	0.211 \| good
2025-10-23T12:00:00.000Z	18 \| good	1.886 \| good	7.928 \| good	18.827 \| good	0.461 \| good	9.472 \| good	0.194 \| good
2025-10-23T13:00:00.000Z	22 \| good	4.188 \| good	18.226 \| good	16.648 \| good	0.537 \| good	9.714 \| good	0.218 \| good
2025-10-23T14:00:00.000Z	27 \| good	4.967 \| good	21.694 \| good	16.08 \| good	0.613 \| good	9.957 \| good	0.242 \| good
2025-10-23T15:00:00.000Z	20 \| good	3.183 \| good	13.651 \| good	21.609 \| good	0.69 \| good	10.199 \| good	0.266 \| good
2025-10-23T16:00:00.000Z	38 \| good	7.391 \| good	32.381 \| good	23.416 \| good	0.931 \| good	8.889 \| good	0.232 \| good
2025-10-23T17:00:00.000Z	54 \| moderate	11.494 \| good	51.117 \| good	27.903 \| good	1.172 \| good	7.58 \| good	0.198 \| good
2025-10-23T18:00:00.000Z	58 \| moderate	13.383 \| fine	60.405 \| fine	33.255 \| good	1.413 \| good	6.27 \| good	0.164 \| good
2025-10-23T19:00:00.000Z	54 \| moderate	10.745 \| good	47.74 \| good	37.294 \| good	1.349 \| good	5.737 \| good	0.157 \| good
2025-10-23T20:00:00.000Z	44 \| good	7.908 \| good	34.708 \| good	40.294 \| good	1.285 \| good	5.204 \| good	0.15 \| good
2025-10-23T21:00:00.000Z	40 \| good	6.736 \| good	29.95 \| good	42.945 \| good	1.222 \| good	4.672 \| good	0.142 \| good
2025-10-23T22:00:00.000Z	40 \| good	6.747 \| good	29.753 \| good	43.215 \| good	1.171 \| good	6.139 \| good	0.151 \| good
2025-10-23T23:00:00.000Z	52 \| moderate	9.95 \| good	43.976 \| good	39.615 \| good	1.12 \| good	7.606 \| good	0.16 \| good
2025-10-24T00:00:00.000Z	56 \| moderate	12.015 \| good	53.621 \| good	34.205 \| good	1.069 \| good	9.073 \| good	0.168 \| good
2025-10-24T01:00:00.000Z	58 \| moderate	13.431 \| fine	60.713 \| fine	26.863 \| good	1.098 \| good	12.281 \| good	0.191 \| good
2025-10-24T02:00:00.000Z	62 \| moderate	15.416 \| fine	68.679 \| fine	22.755 \| good	1.128 \| good	15.489 \| good	0.214 \| good
2025-10-24T03:00:00.000Z	58 \| moderate	13.44 \| fine	60.382 \| fine	25.121 \| good	1.157 \| good	18.698 \| good	0.236 \| good
2025-10-24T04:00:00.000Z	52 \| moderate	10.482 \| good	46.525 \| good	25.248 \| good	1.116 \| good	18.993 \| good	0.241 \| good
2025-10-24T05:00:00.000Z	52 \| moderate	10.065 \| good	44.687 \| good	28.872 \| good	1.075 \| good	19.287 \| good	0.245 \| good
2025-10-24T06:00:00.000Z	52 \| moderate	10.02 \| good	10.548 \| good	15.977 \| good	1.052 \| good	20.12 \| good	0.253 \| good

Centennial, Colorado live air quality index now

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)

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Centennial, Colorado air quality map: Track AQI near you

Air quality in nearby cities

Lone Tree, Colorado

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Highlands Ranch, Colorado

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Englewood, Colorado

Parker, Colorado

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Frequently asked questions

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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?

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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 Centennial, Colorado?

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

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

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