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

The current PM10 concentration at Centennial, Colorado is 61.56 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Centennial, Colorado is 0.631 ppb.

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

The current ozone (O3) concentration at Centennial, Colorado is 67.017 ppm.

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

The current nitrogen dioxide (NO2) concentration at Centennial, Colorado is 5.513 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 13.972 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)

12.82 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

53.19 μg/m³

155

255

425

605+

Ozone (O₃)

64.11 ppb

201

201+

Sulfur Dioxide (SO₂)

0.56 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

8.96 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.20 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
2026-08-07T02:00:00.000Z	90 \| moderate	19.814 \| fine	87.609 \| fine	67.212 \| fine	0.69 \| good	10.707 \| good	0.229 \| good
2026-08-07T03:00:00.000Z	77 \| moderate	22.654 \| fine	99.245 \| fine	54.409 \| good	0.327 \| good	5.932 \| good	0.185 \| good
2026-08-07T04:00:00.000Z	73 \| moderate	20.909 \| fine	77.187 \| fine	56.028 \| fine	0.724 \| good	34.502 \| good	0.757 \| good
2026-08-07T05:00:00.000Z	73 \| moderate	21.471 \| fine	86.439 \| fine	53.975 \| good	0.964 \| good	42.872 \| good	0.726 \| good
2026-08-07T06:00:00.000Z	77 \| moderate	22.782 \| fine	84.777 \| fine	48.434 \| good	0.826 \| good	33.723 \| good	0.665 \| good
2026-08-07T07:00:00.000Z	77 \| moderate	23.13 \| fine	100.789 \| fine	48.287 \| good	0.701 \| good	29.441 \| good	0.452 \| good
2026-08-07T08:00:00.000Z	67 \| moderate	18.085 \| fine	82.372 \| fine	50.487 \| good	0.742 \| good	22.337 \| good	0.343 \| good
2026-08-07T09:00:00.000Z	69 \| moderate	18.656 \| fine	76.983 \| fine	50.588 \| good	0.9 \| good	21.434 \| good	0.31 \| good
2026-08-07T10:00:00.000Z	66 \| moderate	17.387 \| fine	68.413 \| fine	47.938 \| good	0.843 \| good	27.369 \| good	0.277 \| good
2026-08-07T11:00:00.000Z	73 \| moderate	20.653 \| fine	95.91 \| fine	48.951 \| good	0.885 \| good	25.082 \| good	0.376 \| good
2026-08-07T12:00:00.000Z	69 \| moderate	18.596 \| fine	76.745 \| fine	50.109 \| good	0.885 \| good	24.887 \| good	0.376 \| good
2026-08-07T13:00:00.000Z	71 \| moderate	19.749 \| fine	83.777 \| fine	49.358 \| good	1.125 \| good	29.935 \| good	0.402 \| good
2026-08-07T14:00:00.000Z	73 \| moderate	21.151 \| fine	93.504 \| fine	49.57 \| good	1.262 \| good	30.735 \| good	0.449 \| good
2026-08-07T15:00:00.000Z	71 \| moderate	19.514 \| fine	89.662 \| fine	48.713 \| good	1.242 \| good	33.011 \| good	0.483 \| good
2026-08-07T16:00:00.000Z	69 \| moderate	19.01 \| fine	79.066 \| fine	51.82 \| good	1.192 \| good	23.911 \| good	0.443 \| good
2026-08-07T17:00:00.000Z	78 \| moderate	23.29 \| fine	108.512 \| fine	55.476 \| fine	0.969 \| good	16.64 \| good	0.328 \| good
2026-08-07T18:00:00.000Z	74 \| moderate	18.857 \| fine	84.995 \| fine	62.057 \| fine	1.096 \| good	13.87 \| good	0.248 \| good
2026-08-07T19:00:00.000Z	97 \| moderate	24.887 \| fine	107.453 \| fine	68.589 \| fine	1.117 \| good	13.884 \| good	0.328 \| good
2026-08-07T20:00:00.000Z	115 \| sensitive	24.877 \| fine	98.114 \| fine	74.969 \| moderate	1.126 \| good	14.643 \| good	0.328 \| good
2026-08-07T21:00:00.000Z	129 \| sensitive	25.398 \| fine	111.104 \| fine	79.293 \| moderate	1.01 \| good	14.094 \| good	0.281 \| good
2026-08-07T22:00:00.000Z	133 \| sensitive	24.818 \| fine	103.444 \| fine	79.544 \| moderate	0.948 \| good	13.938 \| good	0.281 \| good
2026-08-07T23:00:00.000Z	126 \| sensitive	23.831 \| fine	101.543 \| fine	78.334 \| moderate	0.778 \| good	8.17 \| good	0.248 \| good
2026-08-08T00:00:00.000Z	122 \| sensitive	23.682 \| fine	101.008 \| fine	76.599 \| moderate	0.73 \| good	8.854 \| good	0.248 \| good
2026-08-08T01:00:00.000Z	115 \| sensitive	22.542 \| fine	99.038 \| fine	75.283 \| moderate	0.891 \| good	11.179 \| good	0.295 \| good
2026-08-08T02:00:00.000Z	101 \| sensitive	22.697 \| fine	99.756 \| fine	70.852 \| fine	0.728 \| good	15.933 \| good	0.376 \| good
2026-08-08T03:00:00.000Z	64 \| moderate	15.622 \| fine	69.257 \| fine	58.234 \| fine	0.418 \| good	6.461 \| good	0.195 \| good
2026-08-08T04:00:00.000Z	77 \| moderate	21.474 \| fine	74.658 \| fine	63.373 \| fine	0.771 \| good	23.779 \| good	0.464 \| good
2026-08-08T05:00:00.000Z	77 \| moderate	23.259 \| fine	101.249 \| fine	61.956 \| fine	0.808 \| good	21.511 \| good	0.525 \| good
2026-08-08T06:00:00.000Z	77 \| moderate	23.446 \| fine	103.674 \| fine	62.927 \| fine	0.71 \| good	30.799 \| good	0.58 \| good
2026-08-08T07:00:00.000Z	77 \| moderate	23.209 \| fine	100.71 \| fine	62.726 \| fine	1.088 \| good	20.07 \| good	0.416 \| good
2026-08-08T08:00:00.000Z	77 \| moderate	22.875 \| fine	98.012 \| fine	60.758 \| fine	1.047 \| good	15.124 \| good	0.328 \| good
2026-08-08T09:00:00.000Z	73 \| moderate	21.051 \| fine	79.089 \| fine	58.986 \| fine	0.737 \| good	17.193 \| good	0.376 \| good
2026-08-08T10:00:00.000Z	73 \| moderate	20.503 \| fine	90.561 \| fine	59.705 \| fine	0.721 \| good	13.611 \| good	0.376 \| good
2026-08-08T11:00:00.000Z	71 \| moderate	19.766 \| fine	85.163 \| fine	58.773 \| fine	0.739 \| good	19.594 \| good	0.328 \| good
2026-08-08T12:00:00.000Z	73 \| moderate	21.177 \| fine	84.846 \| fine	57.489 \| fine	0.71 \| good	26.829 \| good	0.424 \| good
2026-08-08T13:00:00.000Z	67 \| moderate	18.417 \| fine	68.75 \| fine	56.526 \| fine	0.776 \| good	31.951 \| good	0.526 \| good
2026-08-08T14:00:00.000Z	66 \| moderate	16.697 \| fine	63.865 \| fine	57.681 \| fine	1.126 \| good	27.818 \| good	0.464 \| good
2026-08-08T15:00:00.000Z	64 \| moderate	15.949 \| fine	59.542 \| fine	57.377 \| fine	1.557 \| good	21.978 \| good	0.331 \| good
2026-08-08T16:00:00.000Z	62 \| moderate	14.905 \| fine	60.23 \| fine	58.267 \| fine	0.957 \| good	22.592 \| good	0.335 \| good
2026-08-08T17:00:00.000Z	67 \| moderate	13.87 \| fine	52.716 \| good	60.407 \| fine	1.177 \| good	19.798 \| good	0.288 \| good
2026-08-08T18:00:00.000Z	77 \| moderate	14.55 \| fine	56.81 \| fine	63.13 \| fine	1.16 \| good	12.746 \| good	0.288 \| good
2026-08-08T19:00:00.000Z	87 \| moderate	16.486 \| fine	69.712 \| fine	65.782 \| fine	1.009 \| good	9.627 \| good	0.254 \| good
2026-08-08T20:00:00.000Z	87 \| moderate	17.303 \| fine	77.353 \| fine	65.694 \| fine	0.674 \| good	7.986 \| good	0.207 \| good
2026-08-08T21:00:00.000Z	90 \| moderate	16.834 \| fine	73.944 \| fine	67.248 \| fine	0.67 \| good	11.364 \| good	0.302 \| good
2026-08-08T22:00:00.000Z	90 \| moderate	15.29 \| fine	69.285 \| fine	66.52 \| fine	0.683 \| good	10.648 \| good	0.295 \| good
2026-08-08T23:00:00.000Z	90 \| moderate	13.972 \| fine	61.56 \| fine	67.017 \| fine	0.631 \| good	5.513 \| good	0.196 \| good
2026-08-09T00:00:00.000Z	80 \| moderate	13.248 \| fine	55.718 \| fine	64.483 \| fine	0.636 \| good	7.053 \| good	0.196 \| good
2026-08-09T01:00:00.000Z	80 \| moderate	12.825 \| fine	53.187 \| good	64.113 \| fine	0.563 \| good	8.955 \| good	0.2 \| good
2026-08-09T01:00:00.000Z	80 \| moderate	12.825 \| fine	53.187 \| good	64.113 \| fine	0.563 \| good	8.955 \| good	0.2 \| good
2026-08-09T00:00:00.000Z	80 \| moderate	18.533 \| fine	81.969 \| fine	63.945 \| fine	0.35 \| good	1.111 \| good	0.145 \| good
2026-08-09T01:00:00.000Z	73 \| moderate	21.452 \| fine	93.703 \| fine	58.879 \| fine	0.347 \| good	1.937 \| good	0.151 \| good
2026-08-09T02:00:00.000Z	84 \| moderate	26.59 \| fine	115.597 \| fine	51.814 \| good	0.359 \| good	5.716 \| good	0.175 \| good
2026-08-09T03:00:00.000Z	90 \| moderate	29.888 \| fine	129.021 \| fine	49.208 \| good	0.398 \| good	8.18 \| good	0.189 \| good
2026-08-09T04:00:00.000Z	97 \| moderate	33.562 \| fine	145.037 \| fine	47.969 \| good	0.418 \| good	8.483 \| good	0.191 \| good
2026-08-09T05:00:00.000Z	98 \| moderate	34.481 \| fine	150.372 \| fine	48.549 \| good	0.402 \| good	8.636 \| good	0.191 \| good
2026-08-09T06:00:00.000Z	100 \| moderate	35.212 \| fine	153.809 \| fine	52.774 \| good	0.379 \| good	9.137 \| good	0.194 \| good
2026-08-09T07:00:00.000Z	97 \| moderate	34.307 \| fine	148.39 \| fine	53.32 \| good	0.349 \| good	9.108 \| good	0.197 \| good
2026-08-09T08:00:00.000Z	94 \| moderate	32.419 \| fine	140.327 \| fine	53.308 \| good	0.324 \| good	8.969 \| good	0.197 \| good
2026-08-09T09:00:00.000Z	92 \| moderate	30.549 \| fine	132.2 \| fine	52.69 \| good	0.303 \| good	8.674 \| good	0.195 \| good
2026-08-09T10:00:00.000Z	88 \| moderate	29.17 \| fine	125.909 \| fine	52.516 \| good	0.292 \| good	8.293 \| good	0.191 \| good
2026-08-09T11:00:00.000Z	84 \| moderate	26.856 \| fine	117.027 \| fine	44.571 \| good	0.283 \| good	7.953 \| good	0.186 \| good
2026-08-09T12:00:00.000Z	81 \| moderate	25.389 \| fine	110.312 \| fine	41.099 \| good	0.278 \| good	7.534 \| good	0.181 \| good
2026-08-09T13:00:00.000Z	84 \| moderate	26.918 \| fine	117.031 \| fine	38.289 \| good	0.253 \| good	6.471 \| good	0.177 \| good
2026-08-09T14:00:00.000Z	82 \| moderate	26.406 \| fine	115.217 \| fine	42.432 \| good	0.257 \| good	5.618 \| good	0.177 \| good
2026-08-09T15:00:00.000Z	77 \| moderate	23.289 \| fine	102.299 \| fine	49.73 \| good	0.312 \| good	4.33 \| good	0.166 \| good
2026-08-09T16:00:00.000Z	75 \| moderate	21.642 \| fine	94.653 \| fine	59.345 \| fine	0.372 \| good	2.236 \| good	0.146 \| good
2026-08-09T17:00:00.000Z	87 \| moderate	19.041 \| fine	83.954 \| fine	66.495 \| fine	0.381 \| good	1.108 \| good	0.143 \| good
2026-08-09T18:00:00.000Z	100 \| moderate	18.644 \| fine	81.918 \| fine	70.271 \| fine	0.324 \| good	0.661 \| good	0.142 \| good
2026-08-09T19:00:00.000Z	115 \| sensitive	20.247 \| fine	88.86 \| fine	74.957 \| moderate	0.292 \| good	0.543 \| good	0.141 \| good
2026-08-09T20:00:00.000Z	129 \| sensitive	19.562 \| fine	86.58 \| fine	78.687 \| moderate	0.28 \| good	0.526 \| good	0.141 \| good
2026-08-09T21:00:00.000Z	108 \| sensitive	20.421 \| fine	89.472 \| fine	73.118 \| moderate	0.294 \| good	0.594 \| good	0.142 \| good
2026-08-09T22:00:00.000Z	84 \| moderate	21.245 \| fine	93.367 \| fine	64.615 \| fine	0.272 \| good	0.944 \| good	0.144 \| good
2026-08-09T23:00:00.000Z	71 \| moderate	20.154 \| fine	88.639 \| fine	59.473 \| fine	0.294 \| good	1.311 \| good	0.146 \| good
2026-08-10T00:00:00.000Z	79 \| moderate	24.053 \| fine	105.3 \| fine	59.479 \| fine	0.316 \| good	1.987 \| good	0.149 \| good
2026-08-10T01:00:00.000Z	75 \| moderate	22.47 \| fine	97.977 \| fine	60.793 \| fine	0.336 \| good	3.51 \| good	0.16 \| good
2026-08-10T02:00:00.000Z	79 \| moderate	23.841 \| fine	103.884 \| fine	56.835 \| fine	0.332 \| good	5.129 \| good	0.171 \| good
2026-08-10T03:00:00.000Z	82 \| moderate	25.837 \| fine	112.849 \| fine	54.36 \| good	0.335 \| good	6.606 \| good	0.182 \| good
2026-08-10T04:00:00.000Z	84 \| moderate	26.724 \| fine	116.24 \| fine	53.179 \| good	0.333 \| good	7.794 \| good	0.191 \| good
2026-08-10T05:00:00.000Z	79 \| moderate	24.334 \| fine	106.569 \| fine	54.282 \| good	0.333 \| good	8.983 \| good	0.2 \| good
2026-08-10T06:00:00.000Z	79 \| moderate	24.3 \| fine	106.341 \| fine	55.911 \| fine	0.311 \| good	9.582 \| good	0.208 \| good
2026-08-10T07:00:00.000Z	81 \| moderate	24.514 \| fine	107.565 \| fine	54.655 \| good	0.278 \| good	8.918 \| good	0.21 \| good
2026-08-10T08:00:00.000Z	84 \| moderate	26.663 \| fine	115.728 \| fine	51.727 \| good	0.262 \| good	7.926 \| good	0.206 \| good
2026-08-10T09:00:00.000Z	82 \| moderate	26.416 \| fine	114.705 \| fine	46.47 \| good	0.242 \| good	7.336 \| good	0.203 \| good
2026-08-10T10:00:00.000Z	86 \| moderate	28.263 \| fine	122.914 \| fine	47.691 \| good	0.225 \| good	6.996 \| good	0.2 \| good
2026-08-10T11:00:00.000Z	84 \| moderate	26.937 \| fine	117.134 \| fine	47.052 \| good	0.21 \| good	6.719 \| good	0.198 \| good
2026-08-10T12:00:00.000Z	84 \| moderate	26.627 \| fine	115.544 \| fine	38.943 \| good	0.198 \| good	6.535 \| good	0.195 \| good
2026-08-10T13:00:00.000Z	82 \| moderate	26.093 \| fine	113.356 \| fine	36.386 \| good	0.181 \| good	5.741 \| good	0.192 \| good
2026-08-10T14:00:00.000Z	79 \| moderate	24.171 \| fine	105.709 \| fine	39.778 \| good	0.187 \| good	5.255 \| good	0.196 \| good
2026-08-10T15:00:00.000Z	79 \| moderate	24.482 \| fine	106.443 \| fine	50.304 \| good	0.227 \| good	4.281 \| good	0.187 \| good
2026-08-10T16:00:00.000Z	88 \| moderate	28.606 \| fine	124.531 \| fine	58.865 \| fine	0.309 \| good	2.355 \| good	0.169 \| good
2026-08-10T17:00:00.000Z	97 \| moderate	25.075 \| fine	109.731 \| fine	68.619 \| fine	0.365 \| good	1.249 \| good	0.161 \| good
2026-08-10T18:00:00.000Z	115 \| sensitive	27.753 \| fine	120.582 \| fine	74.772 \| moderate	0.335 \| good	0.788 \| good	0.155 \| good
2026-08-10T19:00:00.000Z	108 \| sensitive	24.429 \| fine	106.182 \| fine	72.671 \| moderate	0.313 \| good	0.617 \| good	0.15 \| good
2026-08-10T20:00:00.000Z	108 \| sensitive	26.67 \| fine	116.352 \| fine	72.705 \| moderate	0.298 \| good	0.578 \| good	0.146 \| good
2026-08-10T21:00:00.000Z	105 \| sensitive	25.187 \| fine	109.519 \| fine	72.05 \| moderate	0.282 \| good	0.622 \| good	0.143 \| good
2026-08-10T22:00:00.000Z	115 \| sensitive	24.732 \| fine	108.374 \| fine	74.674 \| moderate	0.273 \| good	0.829 \| good	0.143 \| good
2026-08-10T23:00:00.000Z	90 \| moderate	21.376 \| fine	94.042 \| fine	66.771 \| fine	0.285 \| good	1.41 \| good	0.147 \| 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

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 11:00:00 on 2026-08-07.

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 04:00:00 on 2026-08-08.

What is the current air quality in Centennial, Colorado?

The current air quality in Centennial, Colorado is 90, 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 13.972 μg/m³.

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

The current PM₁₀ concentration at Centennial, Colorado is 61.56 μg/m³.

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

The current carbon monoxide (CO) concentration at Centennial, Colorado is 0.196 ppm.

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

The current sulfur dioxide (SO₂) concentration at Centennial, Colorado is 0.631 ppb.

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

The current ozone (O₃) concentration at Centennial, Colorado is 67.017 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Centennial, Colorado is 5.513 ppb.

Certified

APIs

Refund Policy

Historical Climate Data

Terms & Conditions

Refund Policy

Terms & Conditions

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-08-07T02:00:00.000Z	90 \| moderate	19.814 \| fine	87.609 \| fine	67.212 \| fine	0.69 \| good	10.707 \| good	0.229 \| good
2026-08-07T03:00:00.000Z	77 \| moderate	22.654 \| fine	99.245 \| fine	54.409 \| good	0.327 \| good	5.932 \| good	0.185 \| good
2026-08-07T04:00:00.000Z	73 \| moderate	20.909 \| fine	77.187 \| fine	56.028 \| fine	0.724 \| good	34.502 \| good	0.757 \| good
2026-08-07T05:00:00.000Z	73 \| moderate	21.471 \| fine	86.439 \| fine	53.975 \| good	0.964 \| good	42.872 \| good	0.726 \| good
2026-08-07T06:00:00.000Z	77 \| moderate	22.782 \| fine	84.777 \| fine	48.434 \| good	0.826 \| good	33.723 \| good	0.665 \| good
2026-08-07T07:00:00.000Z	77 \| moderate	23.13 \| fine	100.789 \| fine	48.287 \| good	0.701 \| good	29.441 \| good	0.452 \| good
2026-08-07T08:00:00.000Z	67 \| moderate	18.085 \| fine	82.372 \| fine	50.487 \| good	0.742 \| good	22.337 \| good	0.343 \| good
2026-08-07T09:00:00.000Z	69 \| moderate	18.656 \| fine	76.983 \| fine	50.588 \| good	0.9 \| good	21.434 \| good	0.31 \| good
2026-08-07T10:00:00.000Z	66 \| moderate	17.387 \| fine	68.413 \| fine	47.938 \| good	0.843 \| good	27.369 \| good	0.277 \| good
2026-08-07T11:00:00.000Z	73 \| moderate	20.653 \| fine	95.91 \| fine	48.951 \| good	0.885 \| good	25.082 \| good	0.376 \| good
2026-08-07T12:00:00.000Z	69 \| moderate	18.596 \| fine	76.745 \| fine	50.109 \| good	0.885 \| good	24.887 \| good	0.376 \| good
2026-08-07T13:00:00.000Z	71 \| moderate	19.749 \| fine	83.777 \| fine	49.358 \| good	1.125 \| good	29.935 \| good	0.402 \| good
2026-08-07T14:00:00.000Z	73 \| moderate	21.151 \| fine	93.504 \| fine	49.57 \| good	1.262 \| good	30.735 \| good	0.449 \| good
2026-08-07T15:00:00.000Z	71 \| moderate	19.514 \| fine	89.662 \| fine	48.713 \| good	1.242 \| good	33.011 \| good	0.483 \| good
2026-08-07T16:00:00.000Z	69 \| moderate	19.01 \| fine	79.066 \| fine	51.82 \| good	1.192 \| good	23.911 \| good	0.443 \| good
2026-08-07T17:00:00.000Z	78 \| moderate	23.29 \| fine	108.512 \| fine	55.476 \| fine	0.969 \| good	16.64 \| good	0.328 \| good
2026-08-07T18:00:00.000Z	74 \| moderate	18.857 \| fine	84.995 \| fine	62.057 \| fine	1.096 \| good	13.87 \| good	0.248 \| good
2026-08-07T19:00:00.000Z	97 \| moderate	24.887 \| fine	107.453 \| fine	68.589 \| fine	1.117 \| good	13.884 \| good	0.328 \| good
2026-08-07T20:00:00.000Z	115 \| sensitive	24.877 \| fine	98.114 \| fine	74.969 \| moderate	1.126 \| good	14.643 \| good	0.328 \| good
2026-08-07T21:00:00.000Z	129 \| sensitive	25.398 \| fine	111.104 \| fine	79.293 \| moderate	1.01 \| good	14.094 \| good	0.281 \| good
2026-08-07T22:00:00.000Z	133 \| sensitive	24.818 \| fine	103.444 \| fine	79.544 \| moderate	0.948 \| good	13.938 \| good	0.281 \| good
2026-08-07T23:00:00.000Z	126 \| sensitive	23.831 \| fine	101.543 \| fine	78.334 \| moderate	0.778 \| good	8.17 \| good	0.248 \| good
2026-08-08T00:00:00.000Z	122 \| sensitive	23.682 \| fine	101.008 \| fine	76.599 \| moderate	0.73 \| good	8.854 \| good	0.248 \| good
2026-08-08T01:00:00.000Z	115 \| sensitive	22.542 \| fine	99.038 \| fine	75.283 \| moderate	0.891 \| good	11.179 \| good	0.295 \| good
2026-08-08T02:00:00.000Z	101 \| sensitive	22.697 \| fine	99.756 \| fine	70.852 \| fine	0.728 \| good	15.933 \| good	0.376 \| good
2026-08-08T03:00:00.000Z	64 \| moderate	15.622 \| fine	69.257 \| fine	58.234 \| fine	0.418 \| good	6.461 \| good	0.195 \| good
2026-08-08T04:00:00.000Z	77 \| moderate	21.474 \| fine	74.658 \| fine	63.373 \| fine	0.771 \| good	23.779 \| good	0.464 \| good
2026-08-08T05:00:00.000Z	77 \| moderate	23.259 \| fine	101.249 \| fine	61.956 \| fine	0.808 \| good	21.511 \| good	0.525 \| good
2026-08-08T06:00:00.000Z	77 \| moderate	23.446 \| fine	103.674 \| fine	62.927 \| fine	0.71 \| good	30.799 \| good	0.58 \| good
2026-08-08T07:00:00.000Z	77 \| moderate	23.209 \| fine	100.71 \| fine	62.726 \| fine	1.088 \| good	20.07 \| good	0.416 \| good
2026-08-08T08:00:00.000Z	77 \| moderate	22.875 \| fine	98.012 \| fine	60.758 \| fine	1.047 \| good	15.124 \| good	0.328 \| good
2026-08-08T09:00:00.000Z	73 \| moderate	21.051 \| fine	79.089 \| fine	58.986 \| fine	0.737 \| good	17.193 \| good	0.376 \| good
2026-08-08T10:00:00.000Z	73 \| moderate	20.503 \| fine	90.561 \| fine	59.705 \| fine	0.721 \| good	13.611 \| good	0.376 \| good
2026-08-08T11:00:00.000Z	71 \| moderate	19.766 \| fine	85.163 \| fine	58.773 \| fine	0.739 \| good	19.594 \| good	0.328 \| good
2026-08-08T12:00:00.000Z	73 \| moderate	21.177 \| fine	84.846 \| fine	57.489 \| fine	0.71 \| good	26.829 \| good	0.424 \| good
2026-08-08T13:00:00.000Z	67 \| moderate	18.417 \| fine	68.75 \| fine	56.526 \| fine	0.776 \| good	31.951 \| good	0.526 \| good
2026-08-08T14:00:00.000Z	66 \| moderate	16.697 \| fine	63.865 \| fine	57.681 \| fine	1.126 \| good	27.818 \| good	0.464 \| good
2026-08-08T15:00:00.000Z	64 \| moderate	15.949 \| fine	59.542 \| fine	57.377 \| fine	1.557 \| good	21.978 \| good	0.331 \| good
2026-08-08T16:00:00.000Z	62 \| moderate	14.905 \| fine	60.23 \| fine	58.267 \| fine	0.957 \| good	22.592 \| good	0.335 \| good
2026-08-08T17:00:00.000Z	67 \| moderate	13.87 \| fine	52.716 \| good	60.407 \| fine	1.177 \| good	19.798 \| good	0.288 \| good
2026-08-08T18:00:00.000Z	77 \| moderate	14.55 \| fine	56.81 \| fine	63.13 \| fine	1.16 \| good	12.746 \| good	0.288 \| good
2026-08-08T19:00:00.000Z	87 \| moderate	16.486 \| fine	69.712 \| fine	65.782 \| fine	1.009 \| good	9.627 \| good	0.254 \| good
2026-08-08T20:00:00.000Z	87 \| moderate	17.303 \| fine	77.353 \| fine	65.694 \| fine	0.674 \| good	7.986 \| good	0.207 \| good
2026-08-08T21:00:00.000Z	90 \| moderate	16.834 \| fine	73.944 \| fine	67.248 \| fine	0.67 \| good	11.364 \| good	0.302 \| good
2026-08-08T22:00:00.000Z	90 \| moderate	15.29 \| fine	69.285 \| fine	66.52 \| fine	0.683 \| good	10.648 \| good	0.295 \| good
2026-08-08T23:00:00.000Z	90 \| moderate	13.972 \| fine	61.56 \| fine	67.017 \| fine	0.631 \| good	5.513 \| good	0.196 \| good
2026-08-09T00:00:00.000Z	80 \| moderate	13.248 \| fine	55.718 \| fine	64.483 \| fine	0.636 \| good	7.053 \| good	0.196 \| good
2026-08-09T01:00:00.000Z	80 \| moderate	12.825 \| fine	53.187 \| good	64.113 \| fine	0.563 \| good	8.955 \| good	0.2 \| good
2026-08-09T01:00:00.000Z	80 \| moderate	12.825 \| fine	53.187 \| good	64.113 \| fine	0.563 \| good	8.955 \| good	0.2 \| good
2026-08-09T00:00:00.000Z	80 \| moderate	18.533 \| fine	81.969 \| fine	63.945 \| fine	0.35 \| good	1.111 \| good	0.145 \| good
2026-08-09T01:00:00.000Z	73 \| moderate	21.452 \| fine	93.703 \| fine	58.879 \| fine	0.347 \| good	1.937 \| good	0.151 \| good
2026-08-09T02:00:00.000Z	84 \| moderate	26.59 \| fine	115.597 \| fine	51.814 \| good	0.359 \| good	5.716 \| good	0.175 \| good
2026-08-09T03:00:00.000Z	90 \| moderate	29.888 \| fine	129.021 \| fine	49.208 \| good	0.398 \| good	8.18 \| good	0.189 \| good
2026-08-09T04:00:00.000Z	97 \| moderate	33.562 \| fine	145.037 \| fine	47.969 \| good	0.418 \| good	8.483 \| good	0.191 \| good
2026-08-09T05:00:00.000Z	98 \| moderate	34.481 \| fine	150.372 \| fine	48.549 \| good	0.402 \| good	8.636 \| good	0.191 \| good
2026-08-09T06:00:00.000Z	100 \| moderate	35.212 \| fine	153.809 \| fine	52.774 \| good	0.379 \| good	9.137 \| good	0.194 \| good
2026-08-09T07:00:00.000Z	97 \| moderate	34.307 \| fine	148.39 \| fine	53.32 \| good	0.349 \| good	9.108 \| good	0.197 \| good
2026-08-09T08:00:00.000Z	94 \| moderate	32.419 \| fine	140.327 \| fine	53.308 \| good	0.324 \| good	8.969 \| good	0.197 \| good
2026-08-09T09:00:00.000Z	92 \| moderate	30.549 \| fine	132.2 \| fine	52.69 \| good	0.303 \| good	8.674 \| good	0.195 \| good
2026-08-09T10:00:00.000Z	88 \| moderate	29.17 \| fine	125.909 \| fine	52.516 \| good	0.292 \| good	8.293 \| good	0.191 \| good
2026-08-09T11:00:00.000Z	84 \| moderate	26.856 \| fine	117.027 \| fine	44.571 \| good	0.283 \| good	7.953 \| good	0.186 \| good
2026-08-09T12:00:00.000Z	81 \| moderate	25.389 \| fine	110.312 \| fine	41.099 \| good	0.278 \| good	7.534 \| good	0.181 \| good
2026-08-09T13:00:00.000Z	84 \| moderate	26.918 \| fine	117.031 \| fine	38.289 \| good	0.253 \| good	6.471 \| good	0.177 \| good
2026-08-09T14:00:00.000Z	82 \| moderate	26.406 \| fine	115.217 \| fine	42.432 \| good	0.257 \| good	5.618 \| good	0.177 \| good
2026-08-09T15:00:00.000Z	77 \| moderate	23.289 \| fine	102.299 \| fine	49.73 \| good	0.312 \| good	4.33 \| good	0.166 \| good
2026-08-09T16:00:00.000Z	75 \| moderate	21.642 \| fine	94.653 \| fine	59.345 \| fine	0.372 \| good	2.236 \| good	0.146 \| good
2026-08-09T17:00:00.000Z	87 \| moderate	19.041 \| fine	83.954 \| fine	66.495 \| fine	0.381 \| good	1.108 \| good	0.143 \| good
2026-08-09T18:00:00.000Z	100 \| moderate	18.644 \| fine	81.918 \| fine	70.271 \| fine	0.324 \| good	0.661 \| good	0.142 \| good
2026-08-09T19:00:00.000Z	115 \| sensitive	20.247 \| fine	88.86 \| fine	74.957 \| moderate	0.292 \| good	0.543 \| good	0.141 \| good
2026-08-09T20:00:00.000Z	129 \| sensitive	19.562 \| fine	86.58 \| fine	78.687 \| moderate	0.28 \| good	0.526 \| good	0.141 \| good
2026-08-09T21:00:00.000Z	108 \| sensitive	20.421 \| fine	89.472 \| fine	73.118 \| moderate	0.294 \| good	0.594 \| good	0.142 \| good
2026-08-09T22:00:00.000Z	84 \| moderate	21.245 \| fine	93.367 \| fine	64.615 \| fine	0.272 \| good	0.944 \| good	0.144 \| good
2026-08-09T23:00:00.000Z	71 \| moderate	20.154 \| fine	88.639 \| fine	59.473 \| fine	0.294 \| good	1.311 \| good	0.146 \| good
2026-08-10T00:00:00.000Z	79 \| moderate	24.053 \| fine	105.3 \| fine	59.479 \| fine	0.316 \| good	1.987 \| good	0.149 \| good
2026-08-10T01:00:00.000Z	75 \| moderate	22.47 \| fine	97.977 \| fine	60.793 \| fine	0.336 \| good	3.51 \| good	0.16 \| good
2026-08-10T02:00:00.000Z	79 \| moderate	23.841 \| fine	103.884 \| fine	56.835 \| fine	0.332 \| good	5.129 \| good	0.171 \| good
2026-08-10T03:00:00.000Z	82 \| moderate	25.837 \| fine	112.849 \| fine	54.36 \| good	0.335 \| good	6.606 \| good	0.182 \| good
2026-08-10T04:00:00.000Z	84 \| moderate	26.724 \| fine	116.24 \| fine	53.179 \| good	0.333 \| good	7.794 \| good	0.191 \| good
2026-08-10T05:00:00.000Z	79 \| moderate	24.334 \| fine	106.569 \| fine	54.282 \| good	0.333 \| good	8.983 \| good	0.2 \| good
2026-08-10T06:00:00.000Z	79 \| moderate	24.3 \| fine	106.341 \| fine	55.911 \| fine	0.311 \| good	9.582 \| good	0.208 \| good
2026-08-10T07:00:00.000Z	81 \| moderate	24.514 \| fine	107.565 \| fine	54.655 \| good	0.278 \| good	8.918 \| good	0.21 \| good
2026-08-10T08:00:00.000Z	84 \| moderate	26.663 \| fine	115.728 \| fine	51.727 \| good	0.262 \| good	7.926 \| good	0.206 \| good
2026-08-10T09:00:00.000Z	82 \| moderate	26.416 \| fine	114.705 \| fine	46.47 \| good	0.242 \| good	7.336 \| good	0.203 \| good
2026-08-10T10:00:00.000Z	86 \| moderate	28.263 \| fine	122.914 \| fine	47.691 \| good	0.225 \| good	6.996 \| good	0.2 \| good
2026-08-10T11:00:00.000Z	84 \| moderate	26.937 \| fine	117.134 \| fine	47.052 \| good	0.21 \| good	6.719 \| good	0.198 \| good
2026-08-10T12:00:00.000Z	84 \| moderate	26.627 \| fine	115.544 \| fine	38.943 \| good	0.198 \| good	6.535 \| good	0.195 \| good
2026-08-10T13:00:00.000Z	82 \| moderate	26.093 \| fine	113.356 \| fine	36.386 \| good	0.181 \| good	5.741 \| good	0.192 \| good
2026-08-10T14:00:00.000Z	79 \| moderate	24.171 \| fine	105.709 \| fine	39.778 \| good	0.187 \| good	5.255 \| good	0.196 \| good
2026-08-10T15:00:00.000Z	79 \| moderate	24.482 \| fine	106.443 \| fine	50.304 \| good	0.227 \| good	4.281 \| good	0.187 \| good
2026-08-10T16:00:00.000Z	88 \| moderate	28.606 \| fine	124.531 \| fine	58.865 \| fine	0.309 \| good	2.355 \| good	0.169 \| good
2026-08-10T17:00:00.000Z	97 \| moderate	25.075 \| fine	109.731 \| fine	68.619 \| fine	0.365 \| good	1.249 \| good	0.161 \| good
2026-08-10T18:00:00.000Z	115 \| sensitive	27.753 \| fine	120.582 \| fine	74.772 \| moderate	0.335 \| good	0.788 \| good	0.155 \| good
2026-08-10T19:00:00.000Z	108 \| sensitive	24.429 \| fine	106.182 \| fine	72.671 \| moderate	0.313 \| good	0.617 \| good	0.15 \| good
2026-08-10T20:00:00.000Z	108 \| sensitive	26.67 \| fine	116.352 \| fine	72.705 \| moderate	0.298 \| good	0.578 \| good	0.146 \| good
2026-08-10T21:00:00.000Z	105 \| sensitive	25.187 \| fine	109.519 \| fine	72.05 \| moderate	0.282 \| good	0.622 \| good	0.143 \| good
2026-08-10T22:00:00.000Z	115 \| sensitive	24.732 \| fine	108.374 \| fine	74.674 \| moderate	0.273 \| good	0.829 \| good	0.143 \| good
2026-08-10T23:00:00.000Z	90 \| moderate	21.376 \| fine	94.042 \| fine	66.771 \| fine	0.285 \| good	1.41 \| good	0.147 \| 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)

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?