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

The current PM10 concentration at Centennial, Colorado is 32.016 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Centennial, Colorado is 0.924 ppb.

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

The current ozone (O3) concentration at Centennial, Colorado is 63.197 ppm.

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

The current nitrogen dioxide (NO2) concentration at Centennial, Colorado is 12.499 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 7.532 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)

Moderate

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)

7.53 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

32.02 μg/m³

155

255

425

605+

Ozone (O₃)

63.20 ppb

201

201+

Sulfur Dioxide (SO₂)

0.92 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

12.50 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.19 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
2026-07-21T22:00:00.000Z	105 \| sensitive	11.105 \| good	50.473 \| good	72.479 \| moderate	0.709 \| good	4.784 \| good	0.188 \| good
2026-07-21T23:00:00.000Z	101 \| sensitive	10.105 \| good	45.501 \| good	70.781 \| fine	0.656 \| good	4.32 \| good	0.188 \| good
2026-07-22T00:00:00.000Z	97 \| moderate	8.352 \| good	41.57 \| good	68.767 \| fine	0.68 \| good	5.461 \| good	0.196 \| good
2026-07-22T01:00:00.000Z	87 \| moderate	6.949 \| good	38.491 \| good	65.536 \| fine	0.837 \| good	6.183 \| good	0.19 \| good
2026-07-22T02:00:00.000Z	74 \| moderate	6.296 \| good	28.998 \| good	62.168 \| fine	0.501 \| good	10.279 \| good	0.292 \| good
2026-07-22T03:00:00.000Z	64 \| moderate	6.104 \| good	27.736 \| good	58.735 \| fine	0.455 \| good	12.457 \| good	0.292 \| good
2026-07-22T04:00:00.000Z	54 \| moderate	5.908 \| good	27.122 \| good	56.223 \| fine	0.521 \| good	10.987 \| good	0.322 \| good
2026-07-22T05:00:00.000Z	54 \| moderate	6.324 \| good	34.682 \| good	56.188 \| fine	0.71 \| good	9.366 \| good	0.292 \| good
2026-07-22T06:00:00.000Z	54 \| moderate	7.003 \| good	32.092 \| good	56.149 \| fine	0.426 \| good	6.053 \| good	0.19 \| good
2026-07-22T07:00:00.000Z	54 \| moderate	6.063 \| good	38.708 \| good	55.893 \| fine	0.561 \| good	7.232 \| good	0.182 \| good
2026-07-22T08:00:00.000Z	51 \| moderate	5.665 \| good	23.182 \| good	54.766 \| good	0.629 \| good	7.097 \| good	0.182 \| good
2026-07-22T09:00:00.000Z	50 \| good	6.391 \| good	21.354 \| good	54.237 \| good	0.421 \| good	8.507 \| good	0.182 \| good
2026-07-22T10:00:00.000Z	49 \| good	6.324 \| good	32.761 \| good	52.532 \| good	0.467 \| good	10.421 \| good	0.182 \| good
2026-07-22T11:00:00.000Z	48 \| good	6.583 \| good	28.52 \| good	52.43 \| good	0.655 \| good	11.282 \| good	0.233 \| good
2026-07-22T12:00:00.000Z	47 \| good	5.103 \| good	20.836 \| good	50.661 \| good	0.583 \| good	15.235 \| good	0.35 \| good
2026-07-22T13:00:00.000Z	46 \| good	5.247 \| good	21.647 \| good	49.819 \| good	0.559 \| good	20.123 \| good	0.35 \| good
2026-07-22T14:00:00.000Z	46 \| good	5.938 \| good	38.75 \| good	49.93 \| good	0.734 \| good	19.082 \| good	0.432 \| good
2026-07-22T15:00:00.000Z	88 \| moderate	29.338 \| fine	29.36 \| good	50.044 \| good	1.187 \| good	23.141 \| good	0.432 \| good
2026-07-22T16:00:00.000Z	86 \| moderate	28.169 \| fine	43.619 \| good	54.632 \| good	0.73 \| good	18.285 \| good	0.35 \| good
2026-07-22T17:00:00.000Z	61 \| moderate	9.525 \| good	35.824 \| good	57.89 \| fine	1 \| good	12.311 \| good	0.247 \| good
2026-07-22T18:00:00.000Z	77 \| moderate	9.474 \| good	39.406 \| good	63.1 \| fine	0.975 \| good	8.673 \| good	0.252 \| good
2026-07-22T19:00:00.000Z	93 \| moderate	8.998 \| good	33.175 \| good	68.172 \| fine	0.743 \| good	9.947 \| good	0.252 \| good
2026-07-22T20:00:00.000Z	105 \| sensitive	7.919 \| good	34.887 \| good	71.72 \| moderate	0.668 \| good	7.068 \| good	0.2 \| good
2026-07-22T21:00:00.000Z	119 \| sensitive	9.651 \| good	38.417 \| good	75.601 \| moderate	0.756 \| good	13.611 \| good	0.336 \| good
2026-07-22T22:00:00.000Z	105 \| sensitive	10.07 \| good	37.195 \| good	71.584 \| moderate	0.75 \| good	23.044 \| good	0.408 \| good
2026-07-22T23:00:00.000Z	100 \| moderate	9.294 \| good	41.823 \| good	69.917 \| fine	0.635 \| good	11.947 \| good	0.2 \| good
2026-07-23T00:00:00.000Z	90 \| moderate	8.446 \| good	39.472 \| good	66.549 \| fine	0.557 \| good	10.866 \| good	0.252 \| good
2026-07-23T01:00:00.000Z	74 \| moderate	9.068 \| good	36.71 \| good	62.276 \| fine	0.516 \| good	17.437 \| good	0.402 \| good
2026-07-23T02:00:00.000Z	67 \| moderate	8.051 \| good	31.721 \| good	59.667 \| fine	0.539 \| good	20.021 \| good	0.402 \| good
2026-07-23T03:00:00.000Z	49 \| good	7.157 \| good	31.697 \| good	53.088 \| good	0.339 \| good	7.462 \| good	0.163 \| good
2026-07-23T04:00:00.000Z	46 \| good	5.515 \| good	34.033 \| good	50.292 \| good	0.651 \| good	20.767 \| good	0.35 \| good
2026-07-23T05:00:00.000Z	43 \| good	5.551 \| good	23.202 \| good	45.746 \| good	0.583 \| good	19.353 \| good	0.244 \| good
2026-07-23T06:00:00.000Z	42 \| good	4.408 \| good	18.324 \| good	45.35 \| good	0.514 \| good	12.209 \| good	0.192 \| good
2026-07-23T07:00:00.000Z	40 \| good	4.116 \| good	15.576 \| good	43.134 \| good	0.441 \| good	9.047 \| good	0.14 \| good
2026-07-23T08:00:00.000Z	38 \| good	4.061 \| good	14.961 \| good	40.735 \| good	0.533 \| good	11.093 \| good	0.192 \| good
2026-07-23T09:00:00.000Z	33 \| good	4.368 \| good	13.177 \| good	36.394 \| good	0.682 \| good	14.473 \| good	0.192 \| good
2026-07-23T10:00:00.000Z	33 \| good	4.162 \| good	15.496 \| good	35.837 \| good	0.745 \| good	15.895 \| good	0.192 \| good
2026-07-23T11:00:00.000Z	32 \| good	4.572 \| good	20.813 \| good	35.151 \| good	0.804 \| good	18.027 \| good	0.238 \| good
2026-07-23T12:00:00.000Z	30 \| good	4.505 \| good	17.158 \| good	31.707 \| good	0.632 \| good	20.156 \| good	0.225 \| good
2026-07-23T13:00:00.000Z	30 \| good	4.715 \| good	17.254 \| good	32.254 \| good	0.684 \| good	23.81 \| good	0.465 \| good
2026-07-23T14:00:00.000Z	33 \| good	6.286 \| good	29.966 \| good	32.753 \| good	0.684 \| good	22.872 \| good	0.465 \| good
2026-07-23T15:00:00.000Z	36 \| good	5.598 \| good	25.655 \| good	39.014 \| good	0.681 \| good	20.017 \| good	0.388 \| good
2026-07-23T16:00:00.000Z	44 \| good	7.581 \| good	31.291 \| good	42 \| good	0.899 \| good	16.829 \| good	0.329 \| good
2026-07-23T17:00:00.000Z	46 \| good	8.312 \| good	30.047 \| good	49.665 \| good	0.911 \| good	16.83 \| good	0.298 \| good
2026-07-23T18:00:00.000Z	54 \| moderate	8.695 \| good	37.715 \| good	56.499 \| fine	0.882 \| good	12.168 \| good	0.328 \| good
2026-07-23T19:00:00.000Z	74 \| moderate	7.988 \| good	29.021 \| good	62.041 \| fine	0.948 \| good	12.032 \| good	0.194 \| good
2026-07-23T20:00:00.000Z	77 \| moderate	7.532 \| good	32.016 \| good	63.197 \| fine	0.924 \| good	12.499 \| good	0.194 \| good
2026-07-23T21:00:00.000Z	87 \| moderate	7.313 \| good	31.26 \| good	66.313 \| fine	0.79 \| good	13.612 \| good	0.25 \| good
2026-07-23T21:00:00.000Z	77 \| moderate	7.532 \| good	32.016 \| good	63.197 \| fine	0.924 \| good	12.499 \| good	0.194 \| good
2026-07-23T22:00:00.000Z	44 \| good	8.373 \| good	36.698 \| good	46.716 \| good	0.22 \| good	1.308 \| good	0.111 \| good
2026-07-23T23:00:00.000Z	46 \| good	6.726 \| good	30.134 \| good	50.075 \| good	0.24 \| good	1.615 \| good	0.113 \| good
2026-07-24T00:00:00.000Z	48 \| good	4.914 \| good	21.478 \| good	52.182 \| good	0.251 \| good	1.922 \| good	0.115 \| good
2026-07-24T01:00:00.000Z	64 \| moderate	6.841 \| good	30.493 \| good	58.745 \| fine	0.273 \| good	2.427 \| good	0.118 \| good
2026-07-24T02:00:00.000Z	61 \| moderate	10.087 \| good	44.27 \| good	58.209 \| fine	0.302 \| good	4.255 \| good	0.129 \| good
2026-07-24T03:00:00.000Z	56 \| moderate	12.159 \| fine	54.135 \| good	50.995 \| good	0.345 \| good	8.938 \| good	0.159 \| good
2026-07-24T04:00:00.000Z	58 \| moderate	13.355 \| fine	59.594 \| fine	47.24 \| good	0.373 \| good	11.559 \| good	0.177 \| good
2026-07-24T05:00:00.000Z	60 \| moderate	14.181 \| fine	63.438 \| fine	43.955 \| good	0.369 \| good	14.067 \| good	0.195 \| good
2026-07-24T06:00:00.000Z	52 \| moderate	10.467 \| good	46.463 \| good	44.983 \| good	0.319 \| good	14.631 \| good	0.204 \| good
2026-07-24T07:00:00.000Z	42 \| good	5.21 \| good	22.446 \| good	45.356 \| good	0.263 \| good	12.442 \| good	0.194 \| good
2026-07-24T08:00:00.000Z	44 \| good	3.072 \| good	13.157 \| good	46.633 \| good	0.222 \| good	10.915 \| good	0.185 \| good
2026-07-24T09:00:00.000Z	41 \| good	2.528 \| good	10.389 \| good	43.715 \| good	0.186 \| good	9.712 \| good	0.176 \| good
2026-07-24T10:00:00.000Z	41 \| good	3.144 \| good	13.073 \| good	44.494 \| good	0.157 \| good	8.878 \| good	0.169 \| good
2026-07-24T11:00:00.000Z	36 \| good	3.819 \| good	16.778 \| good	39.494 \| good	0.134 \| good	8.365 \| good	0.164 \| good
2026-07-24T12:00:00.000Z	32 \| good	4.792 \| good	20.702 \| good	35.362 \| good	0.115 \| good	7.449 \| good	0.16 \| good
2026-07-24T13:00:00.000Z	33 \| good	5.213 \| good	22.402 \| good	35.944 \| good	0.109 \| good	5.62 \| good	0.154 \| good
2026-07-24T14:00:00.000Z	38 \| good	5.351 \| good	23.166 \| good	41.198 \| good	0.13 \| good	4.753 \| good	0.154 \| good
2026-07-24T15:00:00.000Z	48 \| good	5.889 \| good	25.51 \| good	51.599 \| good	0.187 \| good	3.405 \| good	0.134 \| good
2026-07-24T16:00:00.000Z	64 \| moderate	6.641 \| good	29.748 \| good	59.063 \| fine	0.289 \| good	1.692 \| good	0.12 \| good
2026-07-24T17:00:00.000Z	87 \| moderate	6.873 \| good	30.12 \| good	65.691 \| fine	0.269 \| good	0.888 \| good	0.121 \| good
2026-07-24T18:00:00.000Z	100 \| moderate	6.564 \| good	29.552 \| good	70.295 \| fine	0.242 \| good	0.636 \| good	0.123 \| good
2026-07-24T19:00:00.000Z	105 \| sensitive	6.905 \| good	30.632 \| good	71.703 \| moderate	0.224 \| good	0.542 \| good	0.124 \| good
2026-07-24T20:00:00.000Z	119 \| sensitive	7.27 \| good	31.951 \| good	75.835 \| moderate	0.21 \| good	0.509 \| good	0.123 \| good
2026-07-24T21:00:00.000Z	119 \| sensitive	7.186 \| good	31.678 \| good	75.619 \| moderate	0.2 \| good	0.527 \| good	0.123 \| good
2026-07-24T22:00:00.000Z	108 \| sensitive	6.616 \| good	29.373 \| good	73.016 \| moderate	0.195 \| good	0.586 \| good	0.122 \| good
2026-07-24T23:00:00.000Z	93 \| moderate	7.036 \| good	31.251 \| good	67.567 \| fine	0.193 \| good	0.78 \| good	0.122 \| good
2026-07-25T00:00:00.000Z	50 \| good	8.873 \| good	39.359 \| good	54.069 \| good	0.206 \| good	1.424 \| good	0.127 \| good
2026-07-25T01:00:00.000Z	51 \| moderate	3.895 \| good	17.274 \| good	55.13 \| fine	0.234 \| good	1.896 \| good	0.129 \| good
2026-07-25T02:00:00.000Z	64 \| moderate	6.307 \| good	28.034 \| good	59.226 \| fine	0.246 \| good	3.728 \| good	0.141 \| good
2026-07-25T03:00:00.000Z	50 \| good	5.997 \| good	26.269 \| good	53.748 \| good	0.276 \| good	6.571 \| good	0.158 \| good
2026-07-25T04:00:00.000Z	45 \| good	5.05 \| good	21.871 \| good	48.952 \| good	0.298 \| good	8.514 \| good	0.171 \| good
2026-07-25T05:00:00.000Z	44 \| good	4.222 \| good	18.633 \| good	48.342 \| good	0.279 \| good	9.608 \| good	0.18 \| good
2026-07-25T06:00:00.000Z	48 \| good	4.3 \| good	18.422 \| good	51.828 \| good	0.247 \| good	10.185 \| good	0.187 \| good
2026-07-25T07:00:00.000Z	47 \| good	4.405 \| good	18.76 \| good	51.381 \| good	0.211 \| good	9.808 \| good	0.188 \| good
2026-07-25T08:00:00.000Z	47 \| good	4.311 \| good	18.448 \| good	50.783 \| good	0.187 \| good	9.047 \| good	0.184 \| good
2026-07-25T09:00:00.000Z	45 \| good	4.097 \| good	17.795 \| good	48.597 \| good	0.17 \| good	8.345 \| good	0.179 \| good
2026-07-25T10:00:00.000Z	44 \| good	4.19 \| good	18.117 \| good	47.709 \| good	0.163 \| good	7.738 \| good	0.173 \| good
2026-07-25T11:00:00.000Z	39 \| good	5.831 \| good	25.392 \| good	41.769 \| good	0.16 \| good	7.263 \| good	0.168 \| good
2026-07-25T12:00:00.000Z	39 \| good	5.884 \| good	25.721 \| good	42.143 \| good	0.155 \| good	6.61 \| good	0.163 \| good
2026-07-25T13:00:00.000Z	40 \| good	6.35 \| good	28.451 \| good	42.898 \| good	0.145 \| good	5.218 \| good	0.159 \| good
2026-07-25T14:00:00.000Z	44 \| good	6.355 \| good	28.451 \| good	47.936 \| good	0.167 \| good	4.432 \| good	0.159 \| good
2026-07-25T15:00:00.000Z	58 \| moderate	6.053 \| good	27.167 \| good	57.427 \| fine	0.196 \| good	2.678 \| good	0.14 \| good
2026-07-25T16:00:00.000Z	84 \| moderate	5.794 \| good	25.365 \| good	64.69 \| fine	0.232 \| good	1.533 \| good	0.129 \| good
2026-07-25T17:00:00.000Z	87 \| moderate	5.915 \| good	25.71 \| good	65.87 \| fine	0.215 \| good	0.821 \| good	0.122 \| good
2026-07-25T18:00:00.000Z	93 \| moderate	5.624 \| good	24.133 \| good	67.87 \| fine	0.17 \| good	0.517 \| good	0.117 \| good
2026-07-25T19:00:00.000Z	97 \| moderate	5.532 \| good	23.825 \| good	69.421 \| fine	0.141 \| good	0.413 \| good	0.113 \| good
2026-07-25T20:00:00.000Z	97 \| moderate	6.036 \| good	27.006 \| good	69.479 \| fine	0.127 \| good	0.397 \| good	0.111 \| good
2026-07-25T21:00:00.000Z	87 \| moderate	6.725 \| good	29.765 \| good	65.811 \| fine	0.12 \| good	0.444 \| good	0.109 \| good

Centennial

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Centennial, Colorado air quality map: Track AQI near you

0.19ppm

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 09:00:00 on 2026-07-22.

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 2026-07-23.

What is the current air quality in Centennial, Colorado?

The current air quality in Centennial, Colorado is 77, categorized as Moderate 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 7.532 μg/m³.

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

The current PM₁₀ concentration at Centennial, Colorado is 32.016 μg/m³.

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

The current carbon monoxide (CO) concentration at Centennial, Colorado is 0.194 ppm.

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

The current sulfur dioxide (SO₂) concentration at Centennial, Colorado is 0.924 ppb.

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

The current ozone (O₃) concentration at Centennial, Colorado is 63.197 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Centennial, Colorado is 12.499 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-07-21T22:00:00.000Z	105 \| sensitive	11.105 \| good	50.473 \| good	72.479 \| moderate	0.709 \| good	4.784 \| good	0.188 \| good
2026-07-21T23:00:00.000Z	101 \| sensitive	10.105 \| good	45.501 \| good	70.781 \| fine	0.656 \| good	4.32 \| good	0.188 \| good
2026-07-22T00:00:00.000Z	97 \| moderate	8.352 \| good	41.57 \| good	68.767 \| fine	0.68 \| good	5.461 \| good	0.196 \| good
2026-07-22T01:00:00.000Z	87 \| moderate	6.949 \| good	38.491 \| good	65.536 \| fine	0.837 \| good	6.183 \| good	0.19 \| good
2026-07-22T02:00:00.000Z	74 \| moderate	6.296 \| good	28.998 \| good	62.168 \| fine	0.501 \| good	10.279 \| good	0.292 \| good
2026-07-22T03:00:00.000Z	64 \| moderate	6.104 \| good	27.736 \| good	58.735 \| fine	0.455 \| good	12.457 \| good	0.292 \| good
2026-07-22T04:00:00.000Z	54 \| moderate	5.908 \| good	27.122 \| good	56.223 \| fine	0.521 \| good	10.987 \| good	0.322 \| good
2026-07-22T05:00:00.000Z	54 \| moderate	6.324 \| good	34.682 \| good	56.188 \| fine	0.71 \| good	9.366 \| good	0.292 \| good
2026-07-22T06:00:00.000Z	54 \| moderate	7.003 \| good	32.092 \| good	56.149 \| fine	0.426 \| good	6.053 \| good	0.19 \| good
2026-07-22T07:00:00.000Z	54 \| moderate	6.063 \| good	38.708 \| good	55.893 \| fine	0.561 \| good	7.232 \| good	0.182 \| good
2026-07-22T08:00:00.000Z	51 \| moderate	5.665 \| good	23.182 \| good	54.766 \| good	0.629 \| good	7.097 \| good	0.182 \| good
2026-07-22T09:00:00.000Z	50 \| good	6.391 \| good	21.354 \| good	54.237 \| good	0.421 \| good	8.507 \| good	0.182 \| good
2026-07-22T10:00:00.000Z	49 \| good	6.324 \| good	32.761 \| good	52.532 \| good	0.467 \| good	10.421 \| good	0.182 \| good
2026-07-22T11:00:00.000Z	48 \| good	6.583 \| good	28.52 \| good	52.43 \| good	0.655 \| good	11.282 \| good	0.233 \| good
2026-07-22T12:00:00.000Z	47 \| good	5.103 \| good	20.836 \| good	50.661 \| good	0.583 \| good	15.235 \| good	0.35 \| good
2026-07-22T13:00:00.000Z	46 \| good	5.247 \| good	21.647 \| good	49.819 \| good	0.559 \| good	20.123 \| good	0.35 \| good
2026-07-22T14:00:00.000Z	46 \| good	5.938 \| good	38.75 \| good	49.93 \| good	0.734 \| good	19.082 \| good	0.432 \| good
2026-07-22T15:00:00.000Z	88 \| moderate	29.338 \| fine	29.36 \| good	50.044 \| good	1.187 \| good	23.141 \| good	0.432 \| good
2026-07-22T16:00:00.000Z	86 \| moderate	28.169 \| fine	43.619 \| good	54.632 \| good	0.73 \| good	18.285 \| good	0.35 \| good
2026-07-22T17:00:00.000Z	61 \| moderate	9.525 \| good	35.824 \| good	57.89 \| fine	1 \| good	12.311 \| good	0.247 \| good
2026-07-22T18:00:00.000Z	77 \| moderate	9.474 \| good	39.406 \| good	63.1 \| fine	0.975 \| good	8.673 \| good	0.252 \| good
2026-07-22T19:00:00.000Z	93 \| moderate	8.998 \| good	33.175 \| good	68.172 \| fine	0.743 \| good	9.947 \| good	0.252 \| good
2026-07-22T20:00:00.000Z	105 \| sensitive	7.919 \| good	34.887 \| good	71.72 \| moderate	0.668 \| good	7.068 \| good	0.2 \| good
2026-07-22T21:00:00.000Z	119 \| sensitive	9.651 \| good	38.417 \| good	75.601 \| moderate	0.756 \| good	13.611 \| good	0.336 \| good
2026-07-22T22:00:00.000Z	105 \| sensitive	10.07 \| good	37.195 \| good	71.584 \| moderate	0.75 \| good	23.044 \| good	0.408 \| good
2026-07-22T23:00:00.000Z	100 \| moderate	9.294 \| good	41.823 \| good	69.917 \| fine	0.635 \| good	11.947 \| good	0.2 \| good
2026-07-23T00:00:00.000Z	90 \| moderate	8.446 \| good	39.472 \| good	66.549 \| fine	0.557 \| good	10.866 \| good	0.252 \| good
2026-07-23T01:00:00.000Z	74 \| moderate	9.068 \| good	36.71 \| good	62.276 \| fine	0.516 \| good	17.437 \| good	0.402 \| good
2026-07-23T02:00:00.000Z	67 \| moderate	8.051 \| good	31.721 \| good	59.667 \| fine	0.539 \| good	20.021 \| good	0.402 \| good
2026-07-23T03:00:00.000Z	49 \| good	7.157 \| good	31.697 \| good	53.088 \| good	0.339 \| good	7.462 \| good	0.163 \| good
2026-07-23T04:00:00.000Z	46 \| good	5.515 \| good	34.033 \| good	50.292 \| good	0.651 \| good	20.767 \| good	0.35 \| good
2026-07-23T05:00:00.000Z	43 \| good	5.551 \| good	23.202 \| good	45.746 \| good	0.583 \| good	19.353 \| good	0.244 \| good
2026-07-23T06:00:00.000Z	42 \| good	4.408 \| good	18.324 \| good	45.35 \| good	0.514 \| good	12.209 \| good	0.192 \| good
2026-07-23T07:00:00.000Z	40 \| good	4.116 \| good	15.576 \| good	43.134 \| good	0.441 \| good	9.047 \| good	0.14 \| good
2026-07-23T08:00:00.000Z	38 \| good	4.061 \| good	14.961 \| good	40.735 \| good	0.533 \| good	11.093 \| good	0.192 \| good
2026-07-23T09:00:00.000Z	33 \| good	4.368 \| good	13.177 \| good	36.394 \| good	0.682 \| good	14.473 \| good	0.192 \| good
2026-07-23T10:00:00.000Z	33 \| good	4.162 \| good	15.496 \| good	35.837 \| good	0.745 \| good	15.895 \| good	0.192 \| good
2026-07-23T11:00:00.000Z	32 \| good	4.572 \| good	20.813 \| good	35.151 \| good	0.804 \| good	18.027 \| good	0.238 \| good
2026-07-23T12:00:00.000Z	30 \| good	4.505 \| good	17.158 \| good	31.707 \| good	0.632 \| good	20.156 \| good	0.225 \| good
2026-07-23T13:00:00.000Z	30 \| good	4.715 \| good	17.254 \| good	32.254 \| good	0.684 \| good	23.81 \| good	0.465 \| good
2026-07-23T14:00:00.000Z	33 \| good	6.286 \| good	29.966 \| good	32.753 \| good	0.684 \| good	22.872 \| good	0.465 \| good
2026-07-23T15:00:00.000Z	36 \| good	5.598 \| good	25.655 \| good	39.014 \| good	0.681 \| good	20.017 \| good	0.388 \| good
2026-07-23T16:00:00.000Z	44 \| good	7.581 \| good	31.291 \| good	42 \| good	0.899 \| good	16.829 \| good	0.329 \| good
2026-07-23T17:00:00.000Z	46 \| good	8.312 \| good	30.047 \| good	49.665 \| good	0.911 \| good	16.83 \| good	0.298 \| good
2026-07-23T18:00:00.000Z	54 \| moderate	8.695 \| good	37.715 \| good	56.499 \| fine	0.882 \| good	12.168 \| good	0.328 \| good
2026-07-23T19:00:00.000Z	74 \| moderate	7.988 \| good	29.021 \| good	62.041 \| fine	0.948 \| good	12.032 \| good	0.194 \| good
2026-07-23T20:00:00.000Z	77 \| moderate	7.532 \| good	32.016 \| good	63.197 \| fine	0.924 \| good	12.499 \| good	0.194 \| good
2026-07-23T21:00:00.000Z	87 \| moderate	7.313 \| good	31.26 \| good	66.313 \| fine	0.79 \| good	13.612 \| good	0.25 \| good
2026-07-23T21:00:00.000Z	77 \| moderate	7.532 \| good	32.016 \| good	63.197 \| fine	0.924 \| good	12.499 \| good	0.194 \| good
2026-07-23T22:00:00.000Z	44 \| good	8.373 \| good	36.698 \| good	46.716 \| good	0.22 \| good	1.308 \| good	0.111 \| good
2026-07-23T23:00:00.000Z	46 \| good	6.726 \| good	30.134 \| good	50.075 \| good	0.24 \| good	1.615 \| good	0.113 \| good
2026-07-24T00:00:00.000Z	48 \| good	4.914 \| good	21.478 \| good	52.182 \| good	0.251 \| good	1.922 \| good	0.115 \| good
2026-07-24T01:00:00.000Z	64 \| moderate	6.841 \| good	30.493 \| good	58.745 \| fine	0.273 \| good	2.427 \| good	0.118 \| good
2026-07-24T02:00:00.000Z	61 \| moderate	10.087 \| good	44.27 \| good	58.209 \| fine	0.302 \| good	4.255 \| good	0.129 \| good
2026-07-24T03:00:00.000Z	56 \| moderate	12.159 \| fine	54.135 \| good	50.995 \| good	0.345 \| good	8.938 \| good	0.159 \| good
2026-07-24T04:00:00.000Z	58 \| moderate	13.355 \| fine	59.594 \| fine	47.24 \| good	0.373 \| good	11.559 \| good	0.177 \| good
2026-07-24T05:00:00.000Z	60 \| moderate	14.181 \| fine	63.438 \| fine	43.955 \| good	0.369 \| good	14.067 \| good	0.195 \| good
2026-07-24T06:00:00.000Z	52 \| moderate	10.467 \| good	46.463 \| good	44.983 \| good	0.319 \| good	14.631 \| good	0.204 \| good
2026-07-24T07:00:00.000Z	42 \| good	5.21 \| good	22.446 \| good	45.356 \| good	0.263 \| good	12.442 \| good	0.194 \| good
2026-07-24T08:00:00.000Z	44 \| good	3.072 \| good	13.157 \| good	46.633 \| good	0.222 \| good	10.915 \| good	0.185 \| good
2026-07-24T09:00:00.000Z	41 \| good	2.528 \| good	10.389 \| good	43.715 \| good	0.186 \| good	9.712 \| good	0.176 \| good
2026-07-24T10:00:00.000Z	41 \| good	3.144 \| good	13.073 \| good	44.494 \| good	0.157 \| good	8.878 \| good	0.169 \| good
2026-07-24T11:00:00.000Z	36 \| good	3.819 \| good	16.778 \| good	39.494 \| good	0.134 \| good	8.365 \| good	0.164 \| good
2026-07-24T12:00:00.000Z	32 \| good	4.792 \| good	20.702 \| good	35.362 \| good	0.115 \| good	7.449 \| good	0.16 \| good
2026-07-24T13:00:00.000Z	33 \| good	5.213 \| good	22.402 \| good	35.944 \| good	0.109 \| good	5.62 \| good	0.154 \| good
2026-07-24T14:00:00.000Z	38 \| good	5.351 \| good	23.166 \| good	41.198 \| good	0.13 \| good	4.753 \| good	0.154 \| good
2026-07-24T15:00:00.000Z	48 \| good	5.889 \| good	25.51 \| good	51.599 \| good	0.187 \| good	3.405 \| good	0.134 \| good
2026-07-24T16:00:00.000Z	64 \| moderate	6.641 \| good	29.748 \| good	59.063 \| fine	0.289 \| good	1.692 \| good	0.12 \| good
2026-07-24T17:00:00.000Z	87 \| moderate	6.873 \| good	30.12 \| good	65.691 \| fine	0.269 \| good	0.888 \| good	0.121 \| good
2026-07-24T18:00:00.000Z	100 \| moderate	6.564 \| good	29.552 \| good	70.295 \| fine	0.242 \| good	0.636 \| good	0.123 \| good
2026-07-24T19:00:00.000Z	105 \| sensitive	6.905 \| good	30.632 \| good	71.703 \| moderate	0.224 \| good	0.542 \| good	0.124 \| good
2026-07-24T20:00:00.000Z	119 \| sensitive	7.27 \| good	31.951 \| good	75.835 \| moderate	0.21 \| good	0.509 \| good	0.123 \| good
2026-07-24T21:00:00.000Z	119 \| sensitive	7.186 \| good	31.678 \| good	75.619 \| moderate	0.2 \| good	0.527 \| good	0.123 \| good
2026-07-24T22:00:00.000Z	108 \| sensitive	6.616 \| good	29.373 \| good	73.016 \| moderate	0.195 \| good	0.586 \| good	0.122 \| good
2026-07-24T23:00:00.000Z	93 \| moderate	7.036 \| good	31.251 \| good	67.567 \| fine	0.193 \| good	0.78 \| good	0.122 \| good
2026-07-25T00:00:00.000Z	50 \| good	8.873 \| good	39.359 \| good	54.069 \| good	0.206 \| good	1.424 \| good	0.127 \| good
2026-07-25T01:00:00.000Z	51 \| moderate	3.895 \| good	17.274 \| good	55.13 \| fine	0.234 \| good	1.896 \| good	0.129 \| good
2026-07-25T02:00:00.000Z	64 \| moderate	6.307 \| good	28.034 \| good	59.226 \| fine	0.246 \| good	3.728 \| good	0.141 \| good
2026-07-25T03:00:00.000Z	50 \| good	5.997 \| good	26.269 \| good	53.748 \| good	0.276 \| good	6.571 \| good	0.158 \| good
2026-07-25T04:00:00.000Z	45 \| good	5.05 \| good	21.871 \| good	48.952 \| good	0.298 \| good	8.514 \| good	0.171 \| good
2026-07-25T05:00:00.000Z	44 \| good	4.222 \| good	18.633 \| good	48.342 \| good	0.279 \| good	9.608 \| good	0.18 \| good
2026-07-25T06:00:00.000Z	48 \| good	4.3 \| good	18.422 \| good	51.828 \| good	0.247 \| good	10.185 \| good	0.187 \| good
2026-07-25T07:00:00.000Z	47 \| good	4.405 \| good	18.76 \| good	51.381 \| good	0.211 \| good	9.808 \| good	0.188 \| good
2026-07-25T08:00:00.000Z	47 \| good	4.311 \| good	18.448 \| good	50.783 \| good	0.187 \| good	9.047 \| good	0.184 \| good
2026-07-25T09:00:00.000Z	45 \| good	4.097 \| good	17.795 \| good	48.597 \| good	0.17 \| good	8.345 \| good	0.179 \| good
2026-07-25T10:00:00.000Z	44 \| good	4.19 \| good	18.117 \| good	47.709 \| good	0.163 \| good	7.738 \| good	0.173 \| good
2026-07-25T11:00:00.000Z	39 \| good	5.831 \| good	25.392 \| good	41.769 \| good	0.16 \| good	7.263 \| good	0.168 \| good
2026-07-25T12:00:00.000Z	39 \| good	5.884 \| good	25.721 \| good	42.143 \| good	0.155 \| good	6.61 \| good	0.163 \| good
2026-07-25T13:00:00.000Z	40 \| good	6.35 \| good	28.451 \| good	42.898 \| good	0.145 \| good	5.218 \| good	0.159 \| good
2026-07-25T14:00:00.000Z	44 \| good	6.355 \| good	28.451 \| good	47.936 \| good	0.167 \| good	4.432 \| good	0.159 \| good
2026-07-25T15:00:00.000Z	58 \| moderate	6.053 \| good	27.167 \| good	57.427 \| fine	0.196 \| good	2.678 \| good	0.14 \| good
2026-07-25T16:00:00.000Z	84 \| moderate	5.794 \| good	25.365 \| good	64.69 \| fine	0.232 \| good	1.533 \| good	0.129 \| good
2026-07-25T17:00:00.000Z	87 \| moderate	5.915 \| good	25.71 \| good	65.87 \| fine	0.215 \| good	0.821 \| good	0.122 \| good
2026-07-25T18:00:00.000Z	93 \| moderate	5.624 \| good	24.133 \| good	67.87 \| fine	0.17 \| good	0.517 \| good	0.117 \| good
2026-07-25T19:00:00.000Z	97 \| moderate	5.532 \| good	23.825 \| good	69.421 \| fine	0.141 \| good	0.413 \| good	0.113 \| good
2026-07-25T20:00:00.000Z	97 \| moderate	6.036 \| good	27.006 \| good	69.479 \| fine	0.127 \| good	0.397 \| good	0.111 \| good
2026-07-25T21:00:00.000Z	87 \| moderate	6.725 \| good	29.765 \| good	65.811 \| fine	0.12 \| good	0.444 \| good	0.109 \| 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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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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