What is the current level of PM10 in Littleton, Colorado?

Littleton, Colorado currently has a PM10 concentration of 30.997 μg/m3.

What is the current level of sulfur dioxide (SO2) in Littleton, Colorado?

The current sulfur dioxide (SO2) concentration in Littleton, Colorado is 0.942 ppb.

What is the current level of ozone (O3) in Littleton, Colorado?

Littleton, Colorado currently has an ozone (O3) concentration of 63.022 ppm.

What is the current level of nitrogen dioxide (NO2) in Littleton, Colorado?

The current level of nitrogen dioxide (NO2) in Littleton, Colorado is 12.618 ppb.

Current air quality index in Littleton, Colorado today

Q: What is the PM2.5 concentration in Littleton, Colorado right now?

Littleton, Colorado currently has a PM2.5 concentration of 7.499 μg/m3.

Stay updated with real-time air quality in Littleton, 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

Littleton, Colorado

Last updated: ... (Local time)

Common air pollutants in Littleton, Colorado

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

7.50 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

31.00 μg/m³

155

255

425

605+

Ozone (O₃)

63.02 ppb

201

201+

Sulfur Dioxide (SO₂)

0.94 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

12.62 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.19 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Littleton, Colorado

Get Live Pollen Counts

Littleton, Colorado

Scroll To Air Quality Map

Track live Littleton, Colorado air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-07-21T22:00:00.000Z	108 \| sensitive	10.593 \| good	49.406 \| good	72.871 \| moderate	0.678 \| good	4.703 \| good	0.187 \| good
2026-07-21T23:00:00.000Z	101 \| sensitive	9.935 \| good	45.477 \| good	70.905 \| fine	0.62 \| good	4.232 \| good	0.187 \| good
2026-07-22T00:00:00.000Z	97 \| moderate	8.279 \| good	42.205 \| good	68.988 \| fine	0.636 \| good	5.304 \| good	0.195 \| good
2026-07-22T01:00:00.000Z	87 \| moderate	6.948 \| good	40.008 \| good	65.831 \| fine	0.809 \| good	5.987 \| good	0.188 \| good
2026-07-22T02:00:00.000Z	77 \| moderate	6.337 \| good	29.147 \| good	62.74 \| fine	0.481 \| good	9.982 \| good	0.279 \| good
2026-07-22T03:00:00.000Z	67 \| moderate	6.141 \| good	27.68 \| good	59.637 \| fine	0.451 \| good	12.311 \| good	0.279 \| good
2026-07-22T04:00:00.000Z	58 \| moderate	5.949 \| good	27.334 \| good	57.398 \| fine	0.502 \| good	9.392 \| good	0.311 \| good
2026-07-22T05:00:00.000Z	61 \| moderate	6.285 \| good	35.481 \| good	57.933 \| fine	0.689 \| good	8.082 \| good	0.279 \| good
2026-07-22T06:00:00.000Z	58 \| moderate	6.917 \| good	31.279 \| good	57.305 \| fine	0.429 \| good	5.513 \| good	0.188 \| good
2026-07-22T07:00:00.000Z	58 \| moderate	5.906 \| good	41.158 \| good	57.134 \| fine	0.546 \| good	6.97 \| good	0.179 \| good
2026-07-22T08:00:00.000Z	54 \| moderate	5.51 \| good	22.444 \| good	56.22 \| fine	0.611 \| good	6.977 \| good	0.179 \| good
2026-07-22T09:00:00.000Z	51 \| moderate	6.535 \| good	20.798 \| good	55.288 \| fine	0.402 \| good	8.34 \| good	0.179 \| good
2026-07-22T10:00:00.000Z	49 \| good	6.507 \| good	35.464 \| good	53.407 \| good	0.443 \| good	10.284 \| good	0.179 \| good
2026-07-22T11:00:00.000Z	50 \| good	6.79 \| good	30.215 \| good	54.05 \| good	0.618 \| good	11.349 \| good	0.225 \| good
2026-07-22T12:00:00.000Z	48 \| good	4.889 \| good	20.307 \| good	52.104 \| good	0.549 \| good	15.22 \| good	0.332 \| good
2026-07-22T13:00:00.000Z	47 \| good	4.956 \| good	20.77 \| good	51.29 \| good	0.533 \| good	20.156 \| good	0.332 \| good
2026-07-22T14:00:00.000Z	47 \| good	5.657 \| good	40.944 \| good	51.261 \| good	0.717 \| good	18.88 \| good	0.411 \| good
2026-07-22T15:00:00.000Z	47 \| good	6 \| good	27.789 \| good	50.681 \| good	1.163 \| good	22.879 \| good	0.411 \| good
2026-07-22T16:00:00.000Z	96 \| moderate	32.934 \| fine	44.557 \| good	55.47 \| fine	0.691 \| good	18.099 \| good	0.332 \| good
2026-07-22T17:00:00.000Z	64 \| moderate	9.692 \| good	34.918 \| good	58.736 \| fine	0.946 \| good	12.215 \| good	0.241 \| good
2026-07-22T18:00:00.000Z	80 \| moderate	9.561 \| good	39.407 \| good	63.83 \| fine	0.929 \| good	8.49 \| good	0.246 \| good
2026-07-22T19:00:00.000Z	97 \| moderate	8.961 \| good	31.836 \| good	68.887 \| fine	0.726 \| good	9.89 \| good	0.246 \| good
2026-07-22T20:00:00.000Z	108 \| sensitive	7.655 \| good	34.093 \| good	72.634 \| moderate	0.643 \| good	6.998 \| good	0.2 \| good
2026-07-22T21:00:00.000Z	122 \| sensitive	9.825 \| good	38.607 \| good	76.61 \| moderate	0.718 \| good	13.357 \| good	0.328 \| good
2026-07-22T22:00:00.000Z	105 \| sensitive	10.27 \| good	36.438 \| good	72.089 \| moderate	0.713 \| good	22.208 \| good	0.386 \| good
2026-07-22T23:00:00.000Z	101 \| sensitive	9.413 \| good	41.4 \| good	70.836 \| fine	0.607 \| good	11.792 \| good	0.2 \| good
2026-07-23T00:00:00.000Z	90 \| moderate	8.53 \| good	39.505 \| good	66.885 \| fine	0.532 \| good	10.734 \| good	0.246 \| good
2026-07-23T01:00:00.000Z	77 \| moderate	9.248 \| good	36.791 \| good	62.735 \| fine	0.497 \| good	17.219 \| good	0.378 \| good
2026-07-23T02:00:00.000Z	71 \| moderate	7.993 \| good	31.424 \| good	60.537 \| fine	0.523 \| good	19.998 \| good	0.378 \| good
2026-07-23T03:00:00.000Z	49 \| good	7.063 \| good	30.825 \| good	53.446 \| good	0.298 \| good	6.746 \| good	0.159 \| good
2026-07-23T04:00:00.000Z	47 \| good	5.368 \| good	36.839 \| good	50.929 \| good	0.614 \| good	20.775 \| good	0.332 \| good
2026-07-23T05:00:00.000Z	43 \| good	5.631 \| good	24.256 \| good	46.199 \| good	0.549 \| good	19.314 \| good	0.238 \| good
2026-07-23T06:00:00.000Z	43 \| good	4.381 \| good	18.772 \| good	45.846 \| good	0.484 \| good	12.204 \| good	0.191 \| good
2026-07-23T07:00:00.000Z	41 \| good	4.121 \| good	15.756 \| good	44.328 \| good	0.414 \| good	8.933 \| good	0.145 \| good
2026-07-23T08:00:00.000Z	38 \| good	4.055 \| good	15.019 \| good	41.215 \| good	0.495 \| good	10.97 \| good	0.191 \| good
2026-07-23T09:00:00.000Z	33 \| good	4.368 \| good	12.609 \| good	36.475 \| good	0.648 \| good	14.457 \| good	0.191 \| good
2026-07-23T10:00:00.000Z	33 \| good	4.004 \| good	15.117 \| good	36.347 \| good	0.718 \| good	16.004 \| good	0.191 \| good
2026-07-23T11:00:00.000Z	33 \| good	4.556 \| good	21.894 \| good	36.098 \| good	0.755 \| good	17.953 \| good	0.23 \| good
2026-07-23T12:00:00.000Z	31 \| good	4.435 \| good	17.187 \| good	32.949 \| good	0.594 \| good	20.48 \| good	0.227 \| good
2026-07-23T13:00:00.000Z	31 \| good	4.603 \| good	16.811 \| good	33.679 \| good	0.651 \| good	23.72 \| good	0.448 \| good
2026-07-23T14:00:00.000Z	33 \| good	6.453 \| good	32.11 \| good	33.416 \| good	0.651 \| good	22.927 \| good	0.448 \| good
2026-07-23T15:00:00.000Z	37 \| good	5.385 \| good	25.839 \| good	40.286 \| good	0.648 \| good	20.018 \| good	0.374 \| good
2026-07-23T16:00:00.000Z	44 \| good	7.657 \| good	31.958 \| good	43.206 \| good	0.859 \| good	16.785 \| good	0.32 \| good
2026-07-23T17:00:00.000Z	46 \| good	8.316 \| good	29.267 \| good	50.296 \| good	0.883 \| good	16.663 \| good	0.285 \| good
2026-07-23T18:00:00.000Z	58 \| moderate	8.668 \| good	38.246 \| good	57.452 \| fine	0.85 \| good	12.002 \| good	0.318 \| good
2026-07-23T19:00:00.000Z	77 \| moderate	7.814 \| good	27.584 \| good	63.43 \| fine	0.9 \| good	11.666 \| good	0.193 \| good
2026-07-23T20:00:00.000Z	84 \| moderate	7.358 \| good	31.883 \| good	64.545 \| fine	0.884 \| good	12.308 \| good	0.193 \| good
2026-07-23T21:00:00.000Z	90 \| moderate	7.329 \| good	31.742 \| good	67.406 \| fine	0.768 \| good	13.409 \| good	0.244 \| good
2026-07-23T21:00:00.000Z	77 \| moderate	7.499 \| good	30.997 \| good	63.022 \| fine	0.942 \| good	12.618 \| good	0.194 \| good
2026-07-23T22:00:00.000Z	46 \| good	7.448 \| good	32.511 \| good	50.185 \| good	0.194 \| good	1.222 \| good	0.11 \| good
2026-07-23T23:00:00.000Z	49 \| good	5.857 \| good	25.493 \| good	52.835 \| good	0.206 \| good	1.471 \| good	0.112 \| good
2026-07-24T00:00:00.000Z	48 \| good	4.602 \| good	20.085 \| good	51.643 \| good	0.212 \| good	1.716 \| good	0.114 \| good
2026-07-24T01:00:00.000Z	61 \| moderate	5.89 \| good	25.738 \| good	57.578 \| fine	0.226 \| good	2.138 \| good	0.116 \| good
2026-07-24T02:00:00.000Z	61 \| moderate	8.57 \| good	37.579 \| good	58.299 \| fine	0.247 \| good	3.981 \| good	0.128 \| good
2026-07-24T03:00:00.000Z	52 \| moderate	10.286 \| good	45.679 \| good	51.125 \| good	0.284 \| good	8.165 \| good	0.156 \| good
2026-07-24T04:00:00.000Z	54 \| moderate	10.98 \| good	49.014 \| good	47.418 \| good	0.302 \| good	10.415 \| good	0.172 \| good
2026-07-24T05:00:00.000Z	54 \| moderate	11.183 \| good	49.698 \| good	44.462 \| good	0.294 \| good	12.401 \| good	0.187 \| good
2026-07-24T06:00:00.000Z	44 \| good	7.95 \| good	35.136 \| good	45.939 \| good	0.252 \| good	12.644 \| good	0.192 \| good
2026-07-24T07:00:00.000Z	43 \| good	3.659 \| good	16.259 \| good	46.401 \| good	0.207 \| good	10.777 \| good	0.182 \| good
2026-07-24T08:00:00.000Z	44 \| good	2.466 \| good	10.091 \| good	47.547 \| good	0.176 \| good	9.472 \| good	0.174 \| good
2026-07-24T09:00:00.000Z	41 \| good	2.265 \| good	9.084 \| good	44.39 \| good	0.15 \| good	8.426 \| good	0.165 \| good
2026-07-24T10:00:00.000Z	43 \| good	2.783 \| good	11.323 \| good	45.825 \| good	0.128 \| good	7.687 \| good	0.159 \| good
2026-07-24T11:00:00.000Z	38 \| good	3.417 \| good	15.258 \| good	41.417 \| good	0.111 \| good	7.218 \| good	0.153 \| good
2026-07-24T12:00:00.000Z	36 \| good	4.68 \| good	20.204 \| good	38.555 \| good	0.096 \| good	6.445 \| good	0.15 \| good
2026-07-24T13:00:00.000Z	36 \| good	5.133 \| good	22.029 \| good	38.992 \| good	0.091 \| good	4.881 \| good	0.145 \| good
2026-07-24T14:00:00.000Z	41 \| good	5.294 \| good	23.022 \| good	43.661 \| good	0.114 \| good	4.081 \| good	0.146 \| good
2026-07-24T15:00:00.000Z	49 \| good	5.93 \| good	26.764 \| good	52.929 \| good	0.163 \| good	2.805 \| good	0.128 \| good
2026-07-24T16:00:00.000Z	67 \| moderate	6.631 \| good	29.86 \| good	59.856 \| fine	0.242 \| good	1.361 \| good	0.118 \| good
2026-07-24T17:00:00.000Z	90 \| moderate	6.752 \| good	29.912 \| good	66.622 \| fine	0.228 \| good	0.741 \| good	0.119 \| good
2026-07-24T18:00:00.000Z	101 \| sensitive	6.441 \| good	28.913 \| good	70.914 \| fine	0.211 \| good	0.548 \| good	0.121 \| good
2026-07-24T19:00:00.000Z	105 \| sensitive	6.883 \| good	30.769 \| good	71.744 \| moderate	0.2 \| good	0.476 \| good	0.122 \| good
2026-07-24T20:00:00.000Z	115 \| sensitive	7.156 \| good	31.848 \| good	75.323 \| moderate	0.19 \| good	0.453 \| good	0.122 \| good
2026-07-24T21:00:00.000Z	115 \| sensitive	7.217 \| good	31.949 \| good	74.922 \| moderate	0.184 \| good	0.476 \| good	0.121 \| good
2026-07-24T22:00:00.000Z	101 \| sensitive	6.532 \| good	29.098 \| good	71.075 \| moderate	0.181 \| good	0.543 \| good	0.121 \| good
2026-07-24T23:00:00.000Z	80 \| moderate	6.774 \| good	30.091 \| good	64.389 \| fine	0.18 \| good	0.756 \| good	0.122 \| good
2026-07-25T00:00:00.000Z	49 \| good	8.318 \| good	36.569 \| good	52.812 \| good	0.19 \| good	1.379 \| good	0.127 \| good
2026-07-25T01:00:00.000Z	51 \| moderate	3.762 \| good	16.521 \| good	54.692 \| good	0.21 \| good	1.824 \| good	0.129 \| good
2026-07-25T02:00:00.000Z	64 \| moderate	6.189 \| good	27.461 \| good	59.36 \| fine	0.213 \| good	3.553 \| good	0.141 \| good
2026-07-25T03:00:00.000Z	50 \| good	5.562 \| good	24.099 \| good	54.122 \| good	0.231 \| good	5.928 \| good	0.155 \| good
2026-07-25T04:00:00.000Z	45 \| good	4.689 \| good	20.364 \| good	49.128 \| good	0.243 \| good	7.493 \| good	0.166 \| good
2026-07-25T05:00:00.000Z	45 \| good	4.366 \| good	18.957 \| good	49.254 \| good	0.228 \| good	8.299 \| good	0.172 \| good
2026-07-25T06:00:00.000Z	49 \| good	4.458 \| good	18.946 \| good	53.131 \| good	0.203 \| good	8.696 \| good	0.176 \| good
2026-07-25T07:00:00.000Z	49 \| good	4.372 \| good	18.656 \| good	52.894 \| good	0.175 \| good	8.364 \| good	0.177 \| good
2026-07-25T08:00:00.000Z	48 \| good	4.025 \| good	17.557 \| good	52.186 \| good	0.155 \| good	7.791 \| good	0.173 \| good
2026-07-25T09:00:00.000Z	46 \| good	3.905 \| good	17.193 \| good	49.641 \| good	0.142 \| good	7.267 \| good	0.169 \| good
2026-07-25T10:00:00.000Z	45 \| good	3.898 \| good	17.177 \| good	48.709 \| good	0.137 \| good	6.823 \| good	0.164 \| good
2026-07-25T11:00:00.000Z	38 \| good	5.208 \| good	22.303 \| good	41.415 \| good	0.136 \| good	6.477 \| good	0.16 \| good
2026-07-25T12:00:00.000Z	40 \| good	5.735 \| good	24.813 \| good	43.071 \| good	0.134 \| good	5.973 \| good	0.156 \| good
2026-07-25T13:00:00.000Z	41 \| good	5.934 \| good	26.821 \| good	44.186 \| good	0.129 \| good	4.737 \| good	0.153 \| good
2026-07-25T14:00:00.000Z	44 \| good	6.05 \| good	27.1 \| good	48.105 \| good	0.155 \| good	3.926 \| good	0.153 \| good
2026-07-25T15:00:00.000Z	54 \| moderate	5.745 \| good	25.057 \| good	56.174 \| fine	0.179 \| good	2.214 \| good	0.136 \| good
2026-07-25T16:00:00.000Z	77 \| moderate	5.785 \| good	24.866 \| good	62.963 \| fine	0.207 \| good	1.263 \| good	0.127 \| good
2026-07-25T17:00:00.000Z	80 \| moderate	5.756 \| good	25.025 \| good	63.835 \| fine	0.195 \| good	0.71 \| good	0.121 \| good
2026-07-25T18:00:00.000Z	87 \| moderate	5.36 \| good	23.038 \| good	66.302 \| fine	0.161 \| good	0.472 \| good	0.116 \| good
2026-07-25T19:00:00.000Z	97 \| moderate	5.466 \| good	23.306 \| good	69.022 \| fine	0.138 \| good	0.385 \| good	0.113 \| good
2026-07-25T20:00:00.000Z	100 \| moderate	5.832 \| good	25.152 \| good	70.443 \| fine	0.124 \| good	0.377 \| good	0.111 \| good
2026-07-25T21:00:00.000Z	93 \| moderate	6.503 \| good	29.076 \| good	67.578 \| fine	0.117 \| good	0.434 \| good	0.11 \| good

Littleton

Empower business decisions with accurate air quality data

Real-time air quality map: Monitor AQI near Littleton, Colorado

0.20ppm

How accurate is Colorado, USA air quality data?

The air quality data for Colorado, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.

Source: Ambee Data Sources

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Frequently asked questions

How frequently does the air quality data for Littleton, Colorado get updated?

Air quality updates for Littleton, Colorado are available every hour.

What time in the past 24 hours saw the poorest air quality in Littleton, Colorado?

Littleton, Colorado experienced its worst air quality at 09:00:00, 2026-07-22.

When was air quality in Littleton, Colorado the best over the past 24 hours?

The best air quality in Littleton, Colorado was observed at 01:00:00 on 2026-07-23.

What is the air quality in Littleton, Colorado right now?

The air quality in Littleton, Colorado right now is Moderate, with an AQI of 77.

What pollutant is most frequently found in Littleton, Colorado?

In Littleton, Colorado, O3 is the most frequently found pollutant.

What can I do if the air quality in Littleton, Colorado is poor?

When air quality in Littleton, Colorado is compromised, staying indoors and wearing a mask can reduce health risks.

What is the PM_2.5 concentration in Littleton, Colorado right now?

Littleton, Colorado currently has a PM_2.5 concentration of 7.499 μg/m³.

What is the current level of PM₁₀ in Littleton, Colorado?

Littleton, Colorado currently has a PM₁₀ concentration of 30.997 μg/m³.

What is the current level of carbon monoxide (CO) in Littleton, Colorado?

The current carbon monoxide (CO) level in Littleton, Colorado is 0.194 ppm.

What is the current level of sulfur dioxide (SO₂) in Littleton, Colorado?

The current sulfur dioxide (SO₂) concentration in Littleton, Colorado is 0.942 ppb.

What is the current level of ozone (O₃) in Littleton, Colorado?

Littleton, Colorado currently has an ozone (O₃) concentration of 63.022 ppm.

What is the current level of nitrogen dioxide (NO₂) in Littleton, Colorado?

The current level of nitrogen dioxide (NO₂) in Littleton, Colorado is 12.618 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-07-21T22:00:00.000Z	108 \| sensitive	10.593 \| good	49.406 \| good	72.871 \| moderate	0.678 \| good	4.703 \| good	0.187 \| good
2026-07-21T23:00:00.000Z	101 \| sensitive	9.935 \| good	45.477 \| good	70.905 \| fine	0.62 \| good	4.232 \| good	0.187 \| good
2026-07-22T00:00:00.000Z	97 \| moderate	8.279 \| good	42.205 \| good	68.988 \| fine	0.636 \| good	5.304 \| good	0.195 \| good
2026-07-22T01:00:00.000Z	87 \| moderate	6.948 \| good	40.008 \| good	65.831 \| fine	0.809 \| good	5.987 \| good	0.188 \| good
2026-07-22T02:00:00.000Z	77 \| moderate	6.337 \| good	29.147 \| good	62.74 \| fine	0.481 \| good	9.982 \| good	0.279 \| good
2026-07-22T03:00:00.000Z	67 \| moderate	6.141 \| good	27.68 \| good	59.637 \| fine	0.451 \| good	12.311 \| good	0.279 \| good
2026-07-22T04:00:00.000Z	58 \| moderate	5.949 \| good	27.334 \| good	57.398 \| fine	0.502 \| good	9.392 \| good	0.311 \| good
2026-07-22T05:00:00.000Z	61 \| moderate	6.285 \| good	35.481 \| good	57.933 \| fine	0.689 \| good	8.082 \| good	0.279 \| good
2026-07-22T06:00:00.000Z	58 \| moderate	6.917 \| good	31.279 \| good	57.305 \| fine	0.429 \| good	5.513 \| good	0.188 \| good
2026-07-22T07:00:00.000Z	58 \| moderate	5.906 \| good	41.158 \| good	57.134 \| fine	0.546 \| good	6.97 \| good	0.179 \| good
2026-07-22T08:00:00.000Z	54 \| moderate	5.51 \| good	22.444 \| good	56.22 \| fine	0.611 \| good	6.977 \| good	0.179 \| good
2026-07-22T09:00:00.000Z	51 \| moderate	6.535 \| good	20.798 \| good	55.288 \| fine	0.402 \| good	8.34 \| good	0.179 \| good
2026-07-22T10:00:00.000Z	49 \| good	6.507 \| good	35.464 \| good	53.407 \| good	0.443 \| good	10.284 \| good	0.179 \| good
2026-07-22T11:00:00.000Z	50 \| good	6.79 \| good	30.215 \| good	54.05 \| good	0.618 \| good	11.349 \| good	0.225 \| good
2026-07-22T12:00:00.000Z	48 \| good	4.889 \| good	20.307 \| good	52.104 \| good	0.549 \| good	15.22 \| good	0.332 \| good
2026-07-22T13:00:00.000Z	47 \| good	4.956 \| good	20.77 \| good	51.29 \| good	0.533 \| good	20.156 \| good	0.332 \| good
2026-07-22T14:00:00.000Z	47 \| good	5.657 \| good	40.944 \| good	51.261 \| good	0.717 \| good	18.88 \| good	0.411 \| good
2026-07-22T15:00:00.000Z	47 \| good	6 \| good	27.789 \| good	50.681 \| good	1.163 \| good	22.879 \| good	0.411 \| good
2026-07-22T16:00:00.000Z	96 \| moderate	32.934 \| fine	44.557 \| good	55.47 \| fine	0.691 \| good	18.099 \| good	0.332 \| good
2026-07-22T17:00:00.000Z	64 \| moderate	9.692 \| good	34.918 \| good	58.736 \| fine	0.946 \| good	12.215 \| good	0.241 \| good
2026-07-22T18:00:00.000Z	80 \| moderate	9.561 \| good	39.407 \| good	63.83 \| fine	0.929 \| good	8.49 \| good	0.246 \| good
2026-07-22T19:00:00.000Z	97 \| moderate	8.961 \| good	31.836 \| good	68.887 \| fine	0.726 \| good	9.89 \| good	0.246 \| good
2026-07-22T20:00:00.000Z	108 \| sensitive	7.655 \| good	34.093 \| good	72.634 \| moderate	0.643 \| good	6.998 \| good	0.2 \| good
2026-07-22T21:00:00.000Z	122 \| sensitive	9.825 \| good	38.607 \| good	76.61 \| moderate	0.718 \| good	13.357 \| good	0.328 \| good
2026-07-22T22:00:00.000Z	105 \| sensitive	10.27 \| good	36.438 \| good	72.089 \| moderate	0.713 \| good	22.208 \| good	0.386 \| good
2026-07-22T23:00:00.000Z	101 \| sensitive	9.413 \| good	41.4 \| good	70.836 \| fine	0.607 \| good	11.792 \| good	0.2 \| good
2026-07-23T00:00:00.000Z	90 \| moderate	8.53 \| good	39.505 \| good	66.885 \| fine	0.532 \| good	10.734 \| good	0.246 \| good
2026-07-23T01:00:00.000Z	77 \| moderate	9.248 \| good	36.791 \| good	62.735 \| fine	0.497 \| good	17.219 \| good	0.378 \| good
2026-07-23T02:00:00.000Z	71 \| moderate	7.993 \| good	31.424 \| good	60.537 \| fine	0.523 \| good	19.998 \| good	0.378 \| good
2026-07-23T03:00:00.000Z	49 \| good	7.063 \| good	30.825 \| good	53.446 \| good	0.298 \| good	6.746 \| good	0.159 \| good
2026-07-23T04:00:00.000Z	47 \| good	5.368 \| good	36.839 \| good	50.929 \| good	0.614 \| good	20.775 \| good	0.332 \| good
2026-07-23T05:00:00.000Z	43 \| good	5.631 \| good	24.256 \| good	46.199 \| good	0.549 \| good	19.314 \| good	0.238 \| good
2026-07-23T06:00:00.000Z	43 \| good	4.381 \| good	18.772 \| good	45.846 \| good	0.484 \| good	12.204 \| good	0.191 \| good
2026-07-23T07:00:00.000Z	41 \| good	4.121 \| good	15.756 \| good	44.328 \| good	0.414 \| good	8.933 \| good	0.145 \| good
2026-07-23T08:00:00.000Z	38 \| good	4.055 \| good	15.019 \| good	41.215 \| good	0.495 \| good	10.97 \| good	0.191 \| good
2026-07-23T09:00:00.000Z	33 \| good	4.368 \| good	12.609 \| good	36.475 \| good	0.648 \| good	14.457 \| good	0.191 \| good
2026-07-23T10:00:00.000Z	33 \| good	4.004 \| good	15.117 \| good	36.347 \| good	0.718 \| good	16.004 \| good	0.191 \| good
2026-07-23T11:00:00.000Z	33 \| good	4.556 \| good	21.894 \| good	36.098 \| good	0.755 \| good	17.953 \| good	0.23 \| good
2026-07-23T12:00:00.000Z	31 \| good	4.435 \| good	17.187 \| good	32.949 \| good	0.594 \| good	20.48 \| good	0.227 \| good
2026-07-23T13:00:00.000Z	31 \| good	4.603 \| good	16.811 \| good	33.679 \| good	0.651 \| good	23.72 \| good	0.448 \| good
2026-07-23T14:00:00.000Z	33 \| good	6.453 \| good	32.11 \| good	33.416 \| good	0.651 \| good	22.927 \| good	0.448 \| good
2026-07-23T15:00:00.000Z	37 \| good	5.385 \| good	25.839 \| good	40.286 \| good	0.648 \| good	20.018 \| good	0.374 \| good
2026-07-23T16:00:00.000Z	44 \| good	7.657 \| good	31.958 \| good	43.206 \| good	0.859 \| good	16.785 \| good	0.32 \| good
2026-07-23T17:00:00.000Z	46 \| good	8.316 \| good	29.267 \| good	50.296 \| good	0.883 \| good	16.663 \| good	0.285 \| good
2026-07-23T18:00:00.000Z	58 \| moderate	8.668 \| good	38.246 \| good	57.452 \| fine	0.85 \| good	12.002 \| good	0.318 \| good
2026-07-23T19:00:00.000Z	77 \| moderate	7.814 \| good	27.584 \| good	63.43 \| fine	0.9 \| good	11.666 \| good	0.193 \| good
2026-07-23T20:00:00.000Z	84 \| moderate	7.358 \| good	31.883 \| good	64.545 \| fine	0.884 \| good	12.308 \| good	0.193 \| good
2026-07-23T21:00:00.000Z	90 \| moderate	7.329 \| good	31.742 \| good	67.406 \| fine	0.768 \| good	13.409 \| good	0.244 \| good
2026-07-23T21:00:00.000Z	77 \| moderate	7.499 \| good	30.997 \| good	63.022 \| fine	0.942 \| good	12.618 \| good	0.194 \| good
2026-07-23T22:00:00.000Z	46 \| good	7.448 \| good	32.511 \| good	50.185 \| good	0.194 \| good	1.222 \| good	0.11 \| good
2026-07-23T23:00:00.000Z	49 \| good	5.857 \| good	25.493 \| good	52.835 \| good	0.206 \| good	1.471 \| good	0.112 \| good
2026-07-24T00:00:00.000Z	48 \| good	4.602 \| good	20.085 \| good	51.643 \| good	0.212 \| good	1.716 \| good	0.114 \| good
2026-07-24T01:00:00.000Z	61 \| moderate	5.89 \| good	25.738 \| good	57.578 \| fine	0.226 \| good	2.138 \| good	0.116 \| good
2026-07-24T02:00:00.000Z	61 \| moderate	8.57 \| good	37.579 \| good	58.299 \| fine	0.247 \| good	3.981 \| good	0.128 \| good
2026-07-24T03:00:00.000Z	52 \| moderate	10.286 \| good	45.679 \| good	51.125 \| good	0.284 \| good	8.165 \| good	0.156 \| good
2026-07-24T04:00:00.000Z	54 \| moderate	10.98 \| good	49.014 \| good	47.418 \| good	0.302 \| good	10.415 \| good	0.172 \| good
2026-07-24T05:00:00.000Z	54 \| moderate	11.183 \| good	49.698 \| good	44.462 \| good	0.294 \| good	12.401 \| good	0.187 \| good
2026-07-24T06:00:00.000Z	44 \| good	7.95 \| good	35.136 \| good	45.939 \| good	0.252 \| good	12.644 \| good	0.192 \| good
2026-07-24T07:00:00.000Z	43 \| good	3.659 \| good	16.259 \| good	46.401 \| good	0.207 \| good	10.777 \| good	0.182 \| good
2026-07-24T08:00:00.000Z	44 \| good	2.466 \| good	10.091 \| good	47.547 \| good	0.176 \| good	9.472 \| good	0.174 \| good
2026-07-24T09:00:00.000Z	41 \| good	2.265 \| good	9.084 \| good	44.39 \| good	0.15 \| good	8.426 \| good	0.165 \| good
2026-07-24T10:00:00.000Z	43 \| good	2.783 \| good	11.323 \| good	45.825 \| good	0.128 \| good	7.687 \| good	0.159 \| good
2026-07-24T11:00:00.000Z	38 \| good	3.417 \| good	15.258 \| good	41.417 \| good	0.111 \| good	7.218 \| good	0.153 \| good
2026-07-24T12:00:00.000Z	36 \| good	4.68 \| good	20.204 \| good	38.555 \| good	0.096 \| good	6.445 \| good	0.15 \| good
2026-07-24T13:00:00.000Z	36 \| good	5.133 \| good	22.029 \| good	38.992 \| good	0.091 \| good	4.881 \| good	0.145 \| good
2026-07-24T14:00:00.000Z	41 \| good	5.294 \| good	23.022 \| good	43.661 \| good	0.114 \| good	4.081 \| good	0.146 \| good
2026-07-24T15:00:00.000Z	49 \| good	5.93 \| good	26.764 \| good	52.929 \| good	0.163 \| good	2.805 \| good	0.128 \| good
2026-07-24T16:00:00.000Z	67 \| moderate	6.631 \| good	29.86 \| good	59.856 \| fine	0.242 \| good	1.361 \| good	0.118 \| good
2026-07-24T17:00:00.000Z	90 \| moderate	6.752 \| good	29.912 \| good	66.622 \| fine	0.228 \| good	0.741 \| good	0.119 \| good
2026-07-24T18:00:00.000Z	101 \| sensitive	6.441 \| good	28.913 \| good	70.914 \| fine	0.211 \| good	0.548 \| good	0.121 \| good
2026-07-24T19:00:00.000Z	105 \| sensitive	6.883 \| good	30.769 \| good	71.744 \| moderate	0.2 \| good	0.476 \| good	0.122 \| good
2026-07-24T20:00:00.000Z	115 \| sensitive	7.156 \| good	31.848 \| good	75.323 \| moderate	0.19 \| good	0.453 \| good	0.122 \| good
2026-07-24T21:00:00.000Z	115 \| sensitive	7.217 \| good	31.949 \| good	74.922 \| moderate	0.184 \| good	0.476 \| good	0.121 \| good
2026-07-24T22:00:00.000Z	101 \| sensitive	6.532 \| good	29.098 \| good	71.075 \| moderate	0.181 \| good	0.543 \| good	0.121 \| good
2026-07-24T23:00:00.000Z	80 \| moderate	6.774 \| good	30.091 \| good	64.389 \| fine	0.18 \| good	0.756 \| good	0.122 \| good
2026-07-25T00:00:00.000Z	49 \| good	8.318 \| good	36.569 \| good	52.812 \| good	0.19 \| good	1.379 \| good	0.127 \| good
2026-07-25T01:00:00.000Z	51 \| moderate	3.762 \| good	16.521 \| good	54.692 \| good	0.21 \| good	1.824 \| good	0.129 \| good
2026-07-25T02:00:00.000Z	64 \| moderate	6.189 \| good	27.461 \| good	59.36 \| fine	0.213 \| good	3.553 \| good	0.141 \| good
2026-07-25T03:00:00.000Z	50 \| good	5.562 \| good	24.099 \| good	54.122 \| good	0.231 \| good	5.928 \| good	0.155 \| good
2026-07-25T04:00:00.000Z	45 \| good	4.689 \| good	20.364 \| good	49.128 \| good	0.243 \| good	7.493 \| good	0.166 \| good
2026-07-25T05:00:00.000Z	45 \| good	4.366 \| good	18.957 \| good	49.254 \| good	0.228 \| good	8.299 \| good	0.172 \| good
2026-07-25T06:00:00.000Z	49 \| good	4.458 \| good	18.946 \| good	53.131 \| good	0.203 \| good	8.696 \| good	0.176 \| good
2026-07-25T07:00:00.000Z	49 \| good	4.372 \| good	18.656 \| good	52.894 \| good	0.175 \| good	8.364 \| good	0.177 \| good
2026-07-25T08:00:00.000Z	48 \| good	4.025 \| good	17.557 \| good	52.186 \| good	0.155 \| good	7.791 \| good	0.173 \| good
2026-07-25T09:00:00.000Z	46 \| good	3.905 \| good	17.193 \| good	49.641 \| good	0.142 \| good	7.267 \| good	0.169 \| good
2026-07-25T10:00:00.000Z	45 \| good	3.898 \| good	17.177 \| good	48.709 \| good	0.137 \| good	6.823 \| good	0.164 \| good
2026-07-25T11:00:00.000Z	38 \| good	5.208 \| good	22.303 \| good	41.415 \| good	0.136 \| good	6.477 \| good	0.16 \| good
2026-07-25T12:00:00.000Z	40 \| good	5.735 \| good	24.813 \| good	43.071 \| good	0.134 \| good	5.973 \| good	0.156 \| good
2026-07-25T13:00:00.000Z	41 \| good	5.934 \| good	26.821 \| good	44.186 \| good	0.129 \| good	4.737 \| good	0.153 \| good
2026-07-25T14:00:00.000Z	44 \| good	6.05 \| good	27.1 \| good	48.105 \| good	0.155 \| good	3.926 \| good	0.153 \| good
2026-07-25T15:00:00.000Z	54 \| moderate	5.745 \| good	25.057 \| good	56.174 \| fine	0.179 \| good	2.214 \| good	0.136 \| good
2026-07-25T16:00:00.000Z	77 \| moderate	5.785 \| good	24.866 \| good	62.963 \| fine	0.207 \| good	1.263 \| good	0.127 \| good
2026-07-25T17:00:00.000Z	80 \| moderate	5.756 \| good	25.025 \| good	63.835 \| fine	0.195 \| good	0.71 \| good	0.121 \| good
2026-07-25T18:00:00.000Z	87 \| moderate	5.36 \| good	23.038 \| good	66.302 \| fine	0.161 \| good	0.472 \| good	0.116 \| good
2026-07-25T19:00:00.000Z	97 \| moderate	5.466 \| good	23.306 \| good	69.022 \| fine	0.138 \| good	0.385 \| good	0.113 \| good
2026-07-25T20:00:00.000Z	100 \| moderate	5.832 \| good	25.152 \| good	70.443 \| fine	0.124 \| good	0.377 \| good	0.111 \| good
2026-07-25T21:00:00.000Z	93 \| moderate	6.503 \| good	29.076 \| good	67.578 \| fine	0.117 \| good	0.434 \| good	0.11 \| good

Current air quality index in Littleton, Colorado today

Common air pollutants in Littleton, Colorado

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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Real-time air quality map: Monitor AQI near Littleton, Colorado

Air quality in nearby cities

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Frequently asked questions

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What is the current level of sulfur dioxide (SO2) in Littleton, Colorado?

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Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

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