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

The current PM10 concentration at Centennial, Colorado is 205.57 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Centennial, Colorado is 0.442 ppb.

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

The current ozone (O3) concentration at Centennial, Colorado is 41.693 ppm.

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

The current nitrogen dioxide (NO2) concentration at Centennial, Colorado is 7.32 ppb.

Centennial, Colorado live air quality index now

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

The current PM2.5 concentration at Centennial, Colorado is 45.835 μg/m3.

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)

127

Unhealthy for sensitive groups

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)

45.84 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

205.57 μg/m³

155

255

425

605+

Ozone (O₃)

41.69 ppb

201

201+

Sulfur Dioxide (SO₂)

0.44 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

7.32 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.16 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

High

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
2026-04-22T05:00:00.000Z	47 \| good	5.07 \| good	27.091 \| good	51.263 \| good	0.644 \| good	14.149 \| good	0.258 \| good
2026-04-22T06:00:00.000Z	47 \| good	4.72 \| good	23.348 \| good	51.149 \| good	0.644 \| good	13.878 \| good	0.258 \| good
2026-04-22T07:00:00.000Z	46 \| good	4.295 \| good	19.767 \| good	49.723 \| good	0.672 \| good	11.587 \| good	0.296 \| good
2026-04-22T08:00:00.000Z	44 \| good	4.3 \| good	17.415 \| good	48.307 \| good	0.639 \| good	10.612 \| good	0.188 \| good
2026-04-22T09:00:00.000Z	44 \| good	4.092 \| good	16.03 \| good	47.932 \| good	0.641 \| good	9.064 \| good	0.158 \| good
2026-04-22T10:00:00.000Z	43 \| good	3.744 \| good	16.294 \| good	46.396 \| good	0.729 \| good	10.151 \| good	0.165 \| good
2026-04-22T11:00:00.000Z	42 \| good	3.622 \| good	14.63 \| good	45.025 \| good	0.84 \| good	18.393 \| good	0.216 \| good
2026-04-22T12:00:00.000Z	42 \| good	3.778 \| good	12.251 \| good	45.266 \| good	0.885 \| good	26.052 \| good	0.357 \| good
2026-04-22T13:00:00.000Z	38 \| good	3.641 \| good	12.853 \| good	41.391 \| good	0.824 \| good	30.582 \| good	0.388 \| good
2026-04-22T14:00:00.000Z	38 \| good	3.718 \| good	15.791 \| good	40.853 \| good	0.868 \| good	25.431 \| good	0.261 \| good
2026-04-22T15:00:00.000Z	40 \| good	3.912 \| good	16.549 \| good	43.376 \| good	0.878 \| good	23.589 \| good	0.32 \| good
2026-04-22T16:00:00.000Z	44 \| good	3.765 \| good	15.447 \| good	46.999 \| good	0.601 \| good	18.89 \| good	0.312 \| good
2026-04-22T17:00:00.000Z	45 \| good	4.014 \| good	18.534 \| good	49.211 \| good	0.533 \| good	14.364 \| good	0.254 \| good
2026-04-22T18:00:00.000Z	47 \| good	4.105 \| good	25.033 \| good	51.292 \| good	0.43 \| good	11.727 \| good	0.247 \| good
2026-04-22T19:00:00.000Z	49 \| good	2.916 \| good	27.356 \| good	52.576 \| good	0.453 \| good	9.255 \| good	0.182 \| good
2026-04-22T20:00:00.000Z	48 \| good	2.987 \| good	21.231 \| good	52.184 \| good	0.383 \| good	10.019 \| good	0.24 \| good
2026-04-22T21:00:00.000Z	51 \| moderate	3.127 \| good	24.892 \| good	54.594 \| good	0.361 \| good	10.828 \| good	0.268 \| good
2026-04-22T22:00:00.000Z	50 \| good	2.193 \| good	14.58 \| good	53.994 \| good	0.429 \| good	9.674 \| good	0.268 \| good
2026-04-22T23:00:00.000Z	49 \| good	2.462 \| good	19.93 \| good	53.095 \| good	0.317 \| good	8 \| good	0.209 \| good
2026-04-23T00:00:00.000Z	61 \| moderate	4.752 \| good	76.195 \| fine	53.854 \| good	0.337 \| good	6.86 \| good	0.209 \| good
2026-04-23T01:00:00.000Z	55 \| moderate	3.603 \| good	63.08 \| fine	55.343 \| fine	0.224 \| good	7.615 \| good	0.202 \| good
2026-04-23T02:00:00.000Z	50 \| good	2.565 \| good	13.092 \| good	54.107 \| good	0.316 \| good	8.076 \| good	0.202 \| good
2026-04-23T03:00:00.000Z	49 \| good	2.471 \| good	13.561 \| good	52.618 \| good	0.424 \| good	8.933 \| good	0.209 \| good
2026-04-23T04:00:00.000Z	46 \| good	2.833 \| good	13.702 \| good	49.899 \| good	0.298 \| good	9.29 \| good	0.263 \| good
2026-04-23T05:00:00.000Z	46 \| good	2.851 \| good	29.73 \| good	49.832 \| good	0.313 \| good	8.888 \| good	0.256 \| good
2026-04-23T06:00:00.000Z	44 \| good	3.395 \| good	23.51 \| good	48.394 \| good	0.298 \| good	10.621 \| good	0.202 \| good
2026-04-23T07:00:00.000Z	45 \| good	4.833 \| good	30.982 \| good	48.609 \| good	0.485 \| good	7.176 \| good	0.151 \| good
2026-04-23T08:00:00.000Z	44 \| good	4.879 \| good	28.94 \| good	46.604 \| good	0.483 \| good	5.318 \| good	0.1 \| good
2026-04-23T09:00:00.000Z	44 \| good	4.605 \| good	31.593 \| good	48.424 \| good	0.294 \| good	4.173 \| good	0.1 \| good
2026-04-23T10:00:00.000Z	44 \| good	3.928 \| good	30.633 \| good	47.842 \| good	0.332 \| good	5.435 \| good	0.1 \| good
2026-04-23T11:00:00.000Z	43 \| good	4.141 \| good	37.609 \| good	45.803 \| good	0.374 \| good	10.888 \| good	0.233 \| good
2026-04-23T12:00:00.000Z	41 \| good	3.84 \| good	21.095 \| good	44.121 \| good	0.429 \| good	16.555 \| good	0.22 \| good
2026-04-23T13:00:00.000Z	42 \| good	3.181 \| good	20.936 \| good	44.88 \| good	0.434 \| good	25.334 \| good	0.323 \| good
2026-04-23T14:00:00.000Z	44 \| good	4.119 \| good	30.226 \| good	47.993 \| good	0.457 \| good	19.933 \| good	0.284 \| good
2026-04-23T15:00:00.000Z	48 \| good	3.806 \| good	21.739 \| good	51.777 \| good	0.533 \| good	14.845 \| good	0.305 \| good
2026-04-23T16:00:00.000Z	50 \| good	2.838 \| good	17.044 \| good	53.597 \| good	0.426 \| good	9.279 \| good	0.202 \| good
2026-04-23T17:00:00.000Z	61 \| moderate	2.28 \| good	14.138 \| good	58.17 \| fine	0.294 \| good	8.992 \| good	0.202 \| good
2026-04-23T18:00:00.000Z	74 \| moderate	2.626 \| good	27.428 \| good	62.221 \| fine	0.427 \| good	7.572 \| good	0.202 \| good
2026-04-23T19:00:00.000Z	64 \| moderate	2.383 \| good	16.27 \| good	58.75 \| fine	0.249 \| good	9.607 \| good	0.26 \| good
2026-04-23T20:00:00.000Z	64 \| moderate	2.864 \| good	28.016 \| good	58.717 \| fine	0.208 \| good	9.142 \| good	0.202 \| good
2026-04-23T21:00:00.000Z	61 \| moderate	2.115 \| good	27.378 \| good	57.903 \| fine	0.363 \| good	10.759 \| good	0.254 \| good
2026-04-23T22:00:00.000Z	54 \| moderate	2.475 \| good	23.831 \| good	56.361 \| fine	0.21 \| good	8.93 \| good	0.284 \| good
2026-04-23T23:00:00.000Z	49 \| good	2.957 \| good	38.912 \| good	53.386 \| good	0.453 \| good	8.668 \| good	0.26 \| good
2026-04-24T00:00:00.000Z	47 \| good	1.632 \| good	9.723 \| good	51.017 \| good	0.422 \| good	7.22 \| good	0.254 \| good
2026-04-24T01:00:00.000Z	46 \| good	1.651 \| good	11.111 \| good	49.897 \| good	0.27 \| good	7.654 \| good	0.254 \| good
2026-04-24T02:00:00.000Z	44 \| good	0.888 \| good	5.878 \| good	47.932 \| good	0.511 \| good	7.516 \| good	0.254 \| good
2026-04-24T03:00:00.000Z	127 \| sensitive	45.835 \| moderate	205.57 \| moderate	41.693 \| good	0.442 \| good	7.32 \| good	0.161 \| good
2026-04-24T04:00:00.000Z	42 \| good	1.137 \| good	4.919 \| good	44.626 \| good	0.382 \| good	5.735 \| good	0.215 \| good
2026-04-24T04:00:00.000Z	127 \| sensitive	45.835 \| moderate	205.57 \| moderate	41.693 \| good	0.442 \| good	7.32 \| good	0.161 \| good
2026-04-24T05:00:00.000Z	98 \| moderate	34.476 \| fine	149.9 \| fine	45.426 \| good	0.585 \| good	12.078 \| good	0.192 \| good
2026-04-24T06:00:00.000Z	66 \| moderate	17.255 \| fine	76.125 \| fine	49.87 \| good	0.643 \| good	13.447 \| good	0.202 \| good
2026-04-24T07:00:00.000Z	44 \| good	4.668 \| good	20.199 \| good	48.392 \| good	0.561 \| good	10.741 \| good	0.186 \| good
2026-04-24T08:00:00.000Z	46 \| good	1.537 \| good	6.59 \| good	49.769 \| good	0.479 \| good	8.034 \| good	0.169 \| good
2026-04-24T09:00:00.000Z	45 \| good	2.172 \| good	9.023 \| good	48.648 \| good	0.397 \| good	5.328 \| good	0.152 \| good
2026-04-24T10:00:00.000Z	42 \| good	3.376 \| good	13.891 \| good	45.169 \| good	0.378 \| good	4.789 \| good	0.147 \| good
2026-04-24T11:00:00.000Z	32 \| good	4.029 \| good	17.447 \| good	35.122 \| good	0.36 \| good	4.251 \| good	0.142 \| good
2026-04-24T12:00:00.000Z	29 \| good	4.72 \| good	20.339 \| good	31.352 \| good	0.341 \| good	3.712 \| good	0.137 \| good
2026-04-24T13:00:00.000Z	31 \| good	4.084 \| good	17.694 \| good	33.337 \| good	0.401 \| good	3.554 \| good	0.139 \| good
2026-04-24T14:00:00.000Z	35 \| good	5.047 \| good	22.187 \| good	38.053 \| good	0.461 \| good	3.397 \| good	0.141 \| good
2026-04-24T15:00:00.000Z	41 \| good	6.129 \| good	27.078 \| good	44.051 \| good	0.521 \| good	3.239 \| good	0.143 \| good
2026-04-24T16:00:00.000Z	47 \| good	5.269 \| good	23.143 \| good	50.502 \| good	0.425 \| good	2.439 \| good	0.134 \| good
2026-04-24T17:00:00.000Z	49 \| good	3.915 \| good	17.249 \| good	53.261 \| good	0.329 \| good	1.64 \| good	0.124 \| good
2026-04-24T18:00:00.000Z	51 \| moderate	3.884 \| good	17.173 \| good	55.143 \| fine	0.233 \| good	0.841 \| good	0.115 \| good
2026-04-24T19:00:00.000Z	64 \| moderate	4.95 \| good	21.379 \| good	58.633 \| fine	0.208 \| good	0.737 \| good	0.113 \| good
2026-04-24T20:00:00.000Z	77 \| moderate	4.236 \| good	18.856 \| good	63.412 \| fine	0.182 \| good	0.634 \| good	0.111 \| good
2026-04-24T21:00:00.000Z	87 \| moderate	4.354 \| good	19.077 \| good	65.973 \| fine	0.157 \| good	0.531 \| good	0.108 \| good
2026-04-24T22:00:00.000Z	84 \| moderate	5.033 \| good	21.855 \| good	64.949 \| fine	0.157 \| good	0.628 \| good	0.109 \| good
2026-04-24T23:00:00.000Z	80 \| moderate	0.921 \| good	3.423 \| good	64.144 \| fine	0.157 \| good	0.725 \| good	0.11 \| good
2026-04-25T00:00:00.000Z	77 \| moderate	2.733 \| good	11.119 \| good	62.735 \| fine	0.157 \| good	0.823 \| good	0.111 \| good
2026-04-25T01:00:00.000Z	61 \| moderate	2.231 \| good	9.33 \| good	57.749 \| fine	0.245 \| good	2.845 \| good	0.124 \| good
2026-04-25T02:00:00.000Z	42 \| good	3.1 \| good	12.846 \| good	44.938 \| good	0.333 \| good	4.867 \| good	0.137 \| good
2026-04-25T03:00:00.000Z	39 \| good	3.888 \| good	16.771 \| good	41.638 \| good	0.422 \| good	6.89 \| good	0.15 \| good
2026-04-25T04:00:00.000Z	39 \| good	6.243 \| good	27.478 \| good	42.22 \| good	0.45 \| good	8.008 \| good	0.159 \| good
2026-04-25T05:00:00.000Z	54 \| moderate	11.209 \| good	49.698 \| good	45.842 \| good	0.479 \| good	9.126 \| good	0.168 \| good
2026-04-25T06:00:00.000Z	56 \| moderate	11.599 \| good	51.425 \| good	39.238 \| good	0.508 \| good	10.244 \| good	0.177 \| good
2026-04-25T07:00:00.000Z	34 \| good	3.098 \| good	13.185 \| good	37.023 \| good	0.474 \| good	7.73 \| good	0.164 \| good
2026-04-25T08:00:00.000Z	34 \| good	2.419 \| good	10.202 \| good	37.298 \| good	0.439 \| good	5.216 \| good	0.152 \| good
2026-04-25T09:00:00.000Z	35 \| good	1.747 \| good	7.461 \| good	37.517 \| good	0.405 \| good	2.703 \| good	0.139 \| good
2026-04-25T10:00:00.000Z	34 \| good	2.214 \| good	9.13 \| good	37.423 \| good	0.456 \| good	2.856 \| good	0.139 \| good
2026-04-25T11:00:00.000Z	37 \| good	2.671 \| good	10.639 \| good	39.752 \| good	0.506 \| good	3.009 \| good	0.139 \| good
2026-04-25T12:00:00.000Z	40 \| good	3.792 \| good	16.32 \| good	43.056 \| good	0.556 \| good	3.162 \| good	0.139 \| good
2026-04-25T13:00:00.000Z	38 \| good	3.993 \| good	17.614 \| good	41.136 \| good	0.552 \| good	2.984 \| good	0.14 \| good
2026-04-25T14:00:00.000Z	39 \| good	4.348 \| good	19.052 \| good	42.285 \| good	0.547 \| good	2.805 \| good	0.142 \| good
2026-04-25T15:00:00.000Z	37 \| good	5.046 \| good	22.031 \| good	40.4 \| good	0.542 \| good	2.627 \| good	0.143 \| good
2026-04-25T16:00:00.000Z	40 \| good	6.476 \| good	28.838 \| good	42.598 \| good	0.516 \| good	2.304 \| good	0.141 \| good
2026-04-25T17:00:00.000Z	43 \| good	6.487 \| good	28.903 \| good	45.697 \| good	0.49 \| good	1.981 \| good	0.139 \| good
2026-04-25T18:00:00.000Z	44 \| good	5.379 \| good	23.19 \| good	47.409 \| good	0.464 \| good	1.658 \| good	0.136 \| good
2026-04-25T19:00:00.000Z	45 \| good	4.607 \| good	20.315 \| good	49.265 \| good	0.416 \| good	1.418 \| good	0.134 \| good
2026-04-25T20:00:00.000Z	49 \| good	3.777 \| good	16.598 \| good	52.704 \| good	0.368 \| good	1.177 \| good	0.132 \| good
2026-04-25T21:00:00.000Z	54 \| moderate	4.37 \| good	19.13 \| good	55.709 \| fine	0.32 \| good	0.936 \| good	0.13 \| good
2026-04-25T22:00:00.000Z	74 \| moderate	2.653 \| good	10.998 \| good	61.817 \| fine	0.308 \| good	1.181 \| good	0.129 \| good
2026-04-25T23:00:00.000Z	67 \| moderate	1.921 \| good	7.814 \| good	59.913 \| fine	0.297 \| good	1.426 \| good	0.128 \| good
2026-04-26T00:00:00.000Z	61 \| moderate	2.931 \| good	6.114 \| good	58.288 \| fine	0.285 \| good	1.687 \| good	0.128 \| good
2026-04-26T01:00:00.000Z	46 \| good	6.054 \| good	26.821 \| good	50.115 \| good	0.4 \| good	4.492 \| good	0.146 \| good
2026-04-26T02:00:00.000Z	41 \| good	3.945 \| good	16.929 \| good	43.702 \| good	0.516 \| good	7.313 \| good	0.164 \| good
2026-04-26T03:00:00.000Z	45 \| good	2.867 \| good	11.872 \| good	48.535 \| good	0.631 \| good	10.135 \| good	0.182 \| good
2026-04-26T04:00:00.000Z	47 \| good	1.381 \| good	5.618 \| good	51.078 \| good	0.681 \| good	11.336 \| good	0.19 \| good

Centennial

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Centennial, Colorado air quality map: Track AQI near you

0.16ppm

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 2026-04-24.

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 12:00:00 on 2026-04-23.

What is the current air quality in Centennial, Colorado?

The current air quality in Centennial, Colorado is 127, categorized as Unhealthy for Sensitive Groups 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 45.835 μg/m³.

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

The current PM₁₀ concentration at Centennial, Colorado is 205.57 μg/m³.

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

The current carbon monoxide (CO) concentration at Centennial, Colorado is 0.161 ppm.

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

The current sulfur dioxide (SO₂) concentration at Centennial, Colorado is 0.442 ppb.

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

The current ozone (O₃) concentration at Centennial, Colorado is 41.693 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Centennial, Colorado is 7.32 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-04-22T05:00:00.000Z	47 \| good	5.07 \| good	27.091 \| good	51.263 \| good	0.644 \| good	14.149 \| good	0.258 \| good
2026-04-22T06:00:00.000Z	47 \| good	4.72 \| good	23.348 \| good	51.149 \| good	0.644 \| good	13.878 \| good	0.258 \| good
2026-04-22T07:00:00.000Z	46 \| good	4.295 \| good	19.767 \| good	49.723 \| good	0.672 \| good	11.587 \| good	0.296 \| good
2026-04-22T08:00:00.000Z	44 \| good	4.3 \| good	17.415 \| good	48.307 \| good	0.639 \| good	10.612 \| good	0.188 \| good
2026-04-22T09:00:00.000Z	44 \| good	4.092 \| good	16.03 \| good	47.932 \| good	0.641 \| good	9.064 \| good	0.158 \| good
2026-04-22T10:00:00.000Z	43 \| good	3.744 \| good	16.294 \| good	46.396 \| good	0.729 \| good	10.151 \| good	0.165 \| good
2026-04-22T11:00:00.000Z	42 \| good	3.622 \| good	14.63 \| good	45.025 \| good	0.84 \| good	18.393 \| good	0.216 \| good
2026-04-22T12:00:00.000Z	42 \| good	3.778 \| good	12.251 \| good	45.266 \| good	0.885 \| good	26.052 \| good	0.357 \| good
2026-04-22T13:00:00.000Z	38 \| good	3.641 \| good	12.853 \| good	41.391 \| good	0.824 \| good	30.582 \| good	0.388 \| good
2026-04-22T14:00:00.000Z	38 \| good	3.718 \| good	15.791 \| good	40.853 \| good	0.868 \| good	25.431 \| good	0.261 \| good
2026-04-22T15:00:00.000Z	40 \| good	3.912 \| good	16.549 \| good	43.376 \| good	0.878 \| good	23.589 \| good	0.32 \| good
2026-04-22T16:00:00.000Z	44 \| good	3.765 \| good	15.447 \| good	46.999 \| good	0.601 \| good	18.89 \| good	0.312 \| good
2026-04-22T17:00:00.000Z	45 \| good	4.014 \| good	18.534 \| good	49.211 \| good	0.533 \| good	14.364 \| good	0.254 \| good
2026-04-22T18:00:00.000Z	47 \| good	4.105 \| good	25.033 \| good	51.292 \| good	0.43 \| good	11.727 \| good	0.247 \| good
2026-04-22T19:00:00.000Z	49 \| good	2.916 \| good	27.356 \| good	52.576 \| good	0.453 \| good	9.255 \| good	0.182 \| good
2026-04-22T20:00:00.000Z	48 \| good	2.987 \| good	21.231 \| good	52.184 \| good	0.383 \| good	10.019 \| good	0.24 \| good
2026-04-22T21:00:00.000Z	51 \| moderate	3.127 \| good	24.892 \| good	54.594 \| good	0.361 \| good	10.828 \| good	0.268 \| good
2026-04-22T22:00:00.000Z	50 \| good	2.193 \| good	14.58 \| good	53.994 \| good	0.429 \| good	9.674 \| good	0.268 \| good
2026-04-22T23:00:00.000Z	49 \| good	2.462 \| good	19.93 \| good	53.095 \| good	0.317 \| good	8 \| good	0.209 \| good
2026-04-23T00:00:00.000Z	61 \| moderate	4.752 \| good	76.195 \| fine	53.854 \| good	0.337 \| good	6.86 \| good	0.209 \| good
2026-04-23T01:00:00.000Z	55 \| moderate	3.603 \| good	63.08 \| fine	55.343 \| fine	0.224 \| good	7.615 \| good	0.202 \| good
2026-04-23T02:00:00.000Z	50 \| good	2.565 \| good	13.092 \| good	54.107 \| good	0.316 \| good	8.076 \| good	0.202 \| good
2026-04-23T03:00:00.000Z	49 \| good	2.471 \| good	13.561 \| good	52.618 \| good	0.424 \| good	8.933 \| good	0.209 \| good
2026-04-23T04:00:00.000Z	46 \| good	2.833 \| good	13.702 \| good	49.899 \| good	0.298 \| good	9.29 \| good	0.263 \| good
2026-04-23T05:00:00.000Z	46 \| good	2.851 \| good	29.73 \| good	49.832 \| good	0.313 \| good	8.888 \| good	0.256 \| good
2026-04-23T06:00:00.000Z	44 \| good	3.395 \| good	23.51 \| good	48.394 \| good	0.298 \| good	10.621 \| good	0.202 \| good
2026-04-23T07:00:00.000Z	45 \| good	4.833 \| good	30.982 \| good	48.609 \| good	0.485 \| good	7.176 \| good	0.151 \| good
2026-04-23T08:00:00.000Z	44 \| good	4.879 \| good	28.94 \| good	46.604 \| good	0.483 \| good	5.318 \| good	0.1 \| good
2026-04-23T09:00:00.000Z	44 \| good	4.605 \| good	31.593 \| good	48.424 \| good	0.294 \| good	4.173 \| good	0.1 \| good
2026-04-23T10:00:00.000Z	44 \| good	3.928 \| good	30.633 \| good	47.842 \| good	0.332 \| good	5.435 \| good	0.1 \| good
2026-04-23T11:00:00.000Z	43 \| good	4.141 \| good	37.609 \| good	45.803 \| good	0.374 \| good	10.888 \| good	0.233 \| good
2026-04-23T12:00:00.000Z	41 \| good	3.84 \| good	21.095 \| good	44.121 \| good	0.429 \| good	16.555 \| good	0.22 \| good
2026-04-23T13:00:00.000Z	42 \| good	3.181 \| good	20.936 \| good	44.88 \| good	0.434 \| good	25.334 \| good	0.323 \| good
2026-04-23T14:00:00.000Z	44 \| good	4.119 \| good	30.226 \| good	47.993 \| good	0.457 \| good	19.933 \| good	0.284 \| good
2026-04-23T15:00:00.000Z	48 \| good	3.806 \| good	21.739 \| good	51.777 \| good	0.533 \| good	14.845 \| good	0.305 \| good
2026-04-23T16:00:00.000Z	50 \| good	2.838 \| good	17.044 \| good	53.597 \| good	0.426 \| good	9.279 \| good	0.202 \| good
2026-04-23T17:00:00.000Z	61 \| moderate	2.28 \| good	14.138 \| good	58.17 \| fine	0.294 \| good	8.992 \| good	0.202 \| good
2026-04-23T18:00:00.000Z	74 \| moderate	2.626 \| good	27.428 \| good	62.221 \| fine	0.427 \| good	7.572 \| good	0.202 \| good
2026-04-23T19:00:00.000Z	64 \| moderate	2.383 \| good	16.27 \| good	58.75 \| fine	0.249 \| good	9.607 \| good	0.26 \| good
2026-04-23T20:00:00.000Z	64 \| moderate	2.864 \| good	28.016 \| good	58.717 \| fine	0.208 \| good	9.142 \| good	0.202 \| good
2026-04-23T21:00:00.000Z	61 \| moderate	2.115 \| good	27.378 \| good	57.903 \| fine	0.363 \| good	10.759 \| good	0.254 \| good
2026-04-23T22:00:00.000Z	54 \| moderate	2.475 \| good	23.831 \| good	56.361 \| fine	0.21 \| good	8.93 \| good	0.284 \| good
2026-04-23T23:00:00.000Z	49 \| good	2.957 \| good	38.912 \| good	53.386 \| good	0.453 \| good	8.668 \| good	0.26 \| good
2026-04-24T00:00:00.000Z	47 \| good	1.632 \| good	9.723 \| good	51.017 \| good	0.422 \| good	7.22 \| good	0.254 \| good
2026-04-24T01:00:00.000Z	46 \| good	1.651 \| good	11.111 \| good	49.897 \| good	0.27 \| good	7.654 \| good	0.254 \| good
2026-04-24T02:00:00.000Z	44 \| good	0.888 \| good	5.878 \| good	47.932 \| good	0.511 \| good	7.516 \| good	0.254 \| good
2026-04-24T03:00:00.000Z	127 \| sensitive	45.835 \| moderate	205.57 \| moderate	41.693 \| good	0.442 \| good	7.32 \| good	0.161 \| good
2026-04-24T04:00:00.000Z	42 \| good	1.137 \| good	4.919 \| good	44.626 \| good	0.382 \| good	5.735 \| good	0.215 \| good
2026-04-24T04:00:00.000Z	127 \| sensitive	45.835 \| moderate	205.57 \| moderate	41.693 \| good	0.442 \| good	7.32 \| good	0.161 \| good
2026-04-24T05:00:00.000Z	98 \| moderate	34.476 \| fine	149.9 \| fine	45.426 \| good	0.585 \| good	12.078 \| good	0.192 \| good
2026-04-24T06:00:00.000Z	66 \| moderate	17.255 \| fine	76.125 \| fine	49.87 \| good	0.643 \| good	13.447 \| good	0.202 \| good
2026-04-24T07:00:00.000Z	44 \| good	4.668 \| good	20.199 \| good	48.392 \| good	0.561 \| good	10.741 \| good	0.186 \| good
2026-04-24T08:00:00.000Z	46 \| good	1.537 \| good	6.59 \| good	49.769 \| good	0.479 \| good	8.034 \| good	0.169 \| good
2026-04-24T09:00:00.000Z	45 \| good	2.172 \| good	9.023 \| good	48.648 \| good	0.397 \| good	5.328 \| good	0.152 \| good
2026-04-24T10:00:00.000Z	42 \| good	3.376 \| good	13.891 \| good	45.169 \| good	0.378 \| good	4.789 \| good	0.147 \| good
2026-04-24T11:00:00.000Z	32 \| good	4.029 \| good	17.447 \| good	35.122 \| good	0.36 \| good	4.251 \| good	0.142 \| good
2026-04-24T12:00:00.000Z	29 \| good	4.72 \| good	20.339 \| good	31.352 \| good	0.341 \| good	3.712 \| good	0.137 \| good
2026-04-24T13:00:00.000Z	31 \| good	4.084 \| good	17.694 \| good	33.337 \| good	0.401 \| good	3.554 \| good	0.139 \| good
2026-04-24T14:00:00.000Z	35 \| good	5.047 \| good	22.187 \| good	38.053 \| good	0.461 \| good	3.397 \| good	0.141 \| good
2026-04-24T15:00:00.000Z	41 \| good	6.129 \| good	27.078 \| good	44.051 \| good	0.521 \| good	3.239 \| good	0.143 \| good
2026-04-24T16:00:00.000Z	47 \| good	5.269 \| good	23.143 \| good	50.502 \| good	0.425 \| good	2.439 \| good	0.134 \| good
2026-04-24T17:00:00.000Z	49 \| good	3.915 \| good	17.249 \| good	53.261 \| good	0.329 \| good	1.64 \| good	0.124 \| good
2026-04-24T18:00:00.000Z	51 \| moderate	3.884 \| good	17.173 \| good	55.143 \| fine	0.233 \| good	0.841 \| good	0.115 \| good
2026-04-24T19:00:00.000Z	64 \| moderate	4.95 \| good	21.379 \| good	58.633 \| fine	0.208 \| good	0.737 \| good	0.113 \| good
2026-04-24T20:00:00.000Z	77 \| moderate	4.236 \| good	18.856 \| good	63.412 \| fine	0.182 \| good	0.634 \| good	0.111 \| good
2026-04-24T21:00:00.000Z	87 \| moderate	4.354 \| good	19.077 \| good	65.973 \| fine	0.157 \| good	0.531 \| good	0.108 \| good
2026-04-24T22:00:00.000Z	84 \| moderate	5.033 \| good	21.855 \| good	64.949 \| fine	0.157 \| good	0.628 \| good	0.109 \| good
2026-04-24T23:00:00.000Z	80 \| moderate	0.921 \| good	3.423 \| good	64.144 \| fine	0.157 \| good	0.725 \| good	0.11 \| good
2026-04-25T00:00:00.000Z	77 \| moderate	2.733 \| good	11.119 \| good	62.735 \| fine	0.157 \| good	0.823 \| good	0.111 \| good
2026-04-25T01:00:00.000Z	61 \| moderate	2.231 \| good	9.33 \| good	57.749 \| fine	0.245 \| good	2.845 \| good	0.124 \| good
2026-04-25T02:00:00.000Z	42 \| good	3.1 \| good	12.846 \| good	44.938 \| good	0.333 \| good	4.867 \| good	0.137 \| good
2026-04-25T03:00:00.000Z	39 \| good	3.888 \| good	16.771 \| good	41.638 \| good	0.422 \| good	6.89 \| good	0.15 \| good
2026-04-25T04:00:00.000Z	39 \| good	6.243 \| good	27.478 \| good	42.22 \| good	0.45 \| good	8.008 \| good	0.159 \| good
2026-04-25T05:00:00.000Z	54 \| moderate	11.209 \| good	49.698 \| good	45.842 \| good	0.479 \| good	9.126 \| good	0.168 \| good
2026-04-25T06:00:00.000Z	56 \| moderate	11.599 \| good	51.425 \| good	39.238 \| good	0.508 \| good	10.244 \| good	0.177 \| good
2026-04-25T07:00:00.000Z	34 \| good	3.098 \| good	13.185 \| good	37.023 \| good	0.474 \| good	7.73 \| good	0.164 \| good
2026-04-25T08:00:00.000Z	34 \| good	2.419 \| good	10.202 \| good	37.298 \| good	0.439 \| good	5.216 \| good	0.152 \| good
2026-04-25T09:00:00.000Z	35 \| good	1.747 \| good	7.461 \| good	37.517 \| good	0.405 \| good	2.703 \| good	0.139 \| good
2026-04-25T10:00:00.000Z	34 \| good	2.214 \| good	9.13 \| good	37.423 \| good	0.456 \| good	2.856 \| good	0.139 \| good
2026-04-25T11:00:00.000Z	37 \| good	2.671 \| good	10.639 \| good	39.752 \| good	0.506 \| good	3.009 \| good	0.139 \| good
2026-04-25T12:00:00.000Z	40 \| good	3.792 \| good	16.32 \| good	43.056 \| good	0.556 \| good	3.162 \| good	0.139 \| good
2026-04-25T13:00:00.000Z	38 \| good	3.993 \| good	17.614 \| good	41.136 \| good	0.552 \| good	2.984 \| good	0.14 \| good
2026-04-25T14:00:00.000Z	39 \| good	4.348 \| good	19.052 \| good	42.285 \| good	0.547 \| good	2.805 \| good	0.142 \| good
2026-04-25T15:00:00.000Z	37 \| good	5.046 \| good	22.031 \| good	40.4 \| good	0.542 \| good	2.627 \| good	0.143 \| good
2026-04-25T16:00:00.000Z	40 \| good	6.476 \| good	28.838 \| good	42.598 \| good	0.516 \| good	2.304 \| good	0.141 \| good
2026-04-25T17:00:00.000Z	43 \| good	6.487 \| good	28.903 \| good	45.697 \| good	0.49 \| good	1.981 \| good	0.139 \| good
2026-04-25T18:00:00.000Z	44 \| good	5.379 \| good	23.19 \| good	47.409 \| good	0.464 \| good	1.658 \| good	0.136 \| good
2026-04-25T19:00:00.000Z	45 \| good	4.607 \| good	20.315 \| good	49.265 \| good	0.416 \| good	1.418 \| good	0.134 \| good
2026-04-25T20:00:00.000Z	49 \| good	3.777 \| good	16.598 \| good	52.704 \| good	0.368 \| good	1.177 \| good	0.132 \| good
2026-04-25T21:00:00.000Z	54 \| moderate	4.37 \| good	19.13 \| good	55.709 \| fine	0.32 \| good	0.936 \| good	0.13 \| good
2026-04-25T22:00:00.000Z	74 \| moderate	2.653 \| good	10.998 \| good	61.817 \| fine	0.308 \| good	1.181 \| good	0.129 \| good
2026-04-25T23:00:00.000Z	67 \| moderate	1.921 \| good	7.814 \| good	59.913 \| fine	0.297 \| good	1.426 \| good	0.128 \| good
2026-04-26T00:00:00.000Z	61 \| moderate	2.931 \| good	6.114 \| good	58.288 \| fine	0.285 \| good	1.687 \| good	0.128 \| good
2026-04-26T01:00:00.000Z	46 \| good	6.054 \| good	26.821 \| good	50.115 \| good	0.4 \| good	4.492 \| good	0.146 \| good
2026-04-26T02:00:00.000Z	41 \| good	3.945 \| good	16.929 \| good	43.702 \| good	0.516 \| good	7.313 \| good	0.164 \| good
2026-04-26T03:00:00.000Z	45 \| good	2.867 \| good	11.872 \| good	48.535 \| good	0.631 \| good	10.135 \| good	0.182 \| good
2026-04-26T04:00:00.000Z	47 \| good	1.381 \| good	5.618 \| good	51.078 \| good	0.681 \| good	11.336 \| good	0.19 \| 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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Air quality in nearby cities

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Parker, 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?

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