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

Littleton, Colorado currently has a PM10 concentration of 18.092 μg/m3.

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

The current sulfur dioxide (SO2) concentration in Littleton, Colorado is 0.714 ppb.

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

Littleton, Colorado currently has an ozone (O3) concentration of 30.514 ppm.

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

The current level of nitrogen dioxide (NO2) in Littleton, Colorado is 20.855 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 4.015 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)

Good

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)

4.01 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

18.09 μg/m³

155

255

425

605+

Ozone (O₃)

30.51 ppb

201

201+

Sulfur Dioxide (SO₂)

0.71 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

20.86 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.40 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
2026-08-15T15:00:00.000Z	31 \| good	3.7 \| good	16 \| good	32.826 \| good	0.769 \| good	11.968 \| good	0.292 \| good
2026-08-15T16:00:00.000Z	31 \| good	3.7 \| good	16 \| good	33.103 \| good	0.775 \| good	11.57 \| good	0.242 \| good
2026-08-15T17:00:00.000Z	36 \| good	3.7 \| good	16 \| good	39.127 \| good	0.576 \| good	12.137 \| good	0.242 \| good
2026-08-15T18:00:00.000Z	44 \| good	3.8 \| good	17 \| good	46.575 \| good	0.868 \| good	9.939 \| good	0.196 \| good
2026-08-15T19:00:00.000Z	46 \| good	3.8 \| good	17 \| good	50.03 \| good	0.698 \| good	8.128 \| good	0.188 \| good
2026-08-15T20:00:00.000Z	50 \| good	3.8 \| good	17 \| good	54.305 \| good	0.698 \| good	10.472 \| good	0.28 \| good
2026-08-15T21:00:00.000Z	48 \| good	3.8 \| good	17 \| good	51.748 \| good	0.592 \| good	11.011 \| good	0.234 \| good
2026-08-15T22:00:00.000Z	54 \| moderate	3.4 \| good	15 \| good	56.117 \| fine	0.522 \| good	6.916 \| good	0.188 \| good
2026-08-15T23:00:00.000Z	64 \| moderate	3.4 \| good	15 \| good	59.2 \| fine	0.624 \| good	12.907 \| good	0.273 \| good
2026-08-16T00:00:00.000Z	51 \| moderate	2.7 \| good	11 \| good	54.552 \| good	0.586 \| good	14.193 \| good	0.326 \| good
2026-08-16T01:00:00.000Z	51 \| moderate	3 \| good	12 \| good	55.191 \| fine	0.513 \| good	11.125 \| good	0.234 \| good
2026-08-16T02:00:00.000Z	49 \| good	3 \| good	12 \| good	53.153 \| good	0.552 \| good	14.477 \| good	0.333 \| good
2026-08-16T03:00:00.000Z	41 \| good	3.2 \| good	14 \| good	43.863 \| good	0.654 \| good	11.996 \| good	0.379 \| good
2026-08-16T04:00:00.000Z	39 \| good	4.3 \| good	19 \| good	42.357 \| good	0.737 \| good	14.308 \| good	0.234 \| good
2026-08-16T05:00:00.000Z	34 \| good	4.3 \| good	19 \| good	37.208 \| good	0.513 \| good	15.742 \| good	0.385 \| good
2026-08-16T06:00:00.000Z	30 \| good	4.3 \| good	19 \| good	31.633 \| good	0.696 \| good	17.788 \| good	0.513 \| good
2026-08-16T07:00:00.000Z	27 \| good	3.665 \| good	13.996 \| good	29.309 \| good	0.655 \| good	15.558 \| good	0.369 \| good
2026-08-16T08:00:00.000Z	27 \| good	4.6 \| good	20 \| good	29.287 \| good	0.655 \| good	13.481 \| good	0.27 \| good
2026-08-16T09:00:00.000Z	27 \| good	4.9 \| good	21 \| good	27.123 \| good	0.748 \| good	12.873 \| good	0.361 \| good
2026-08-16T10:00:00.000Z	33 \| good	5.8 \| good	25 \| good	25.329 \| good	0.736 \| good	11.174 \| good	0.273 \| good
2026-08-16T11:00:00.000Z	33 \| good	6 \| good	27 \| good	22.993 \| good	0.602 \| good	10.526 \| good	0.154 \| good
2026-08-16T12:00:00.000Z	33 \| good	6.4 \| good	29 \| good	28.718 \| good	0.48 \| good	6.172 \| good	0.189 \| good
2026-08-16T13:00:00.000Z	52 \| moderate	10.1 \| good	45 \| good	25.484 \| good	0.644 \| good	8.806 \| good	0.189 \| good
2026-08-16T14:00:00.000Z	58 \| moderate	13.2 \| fine	59 \| fine	28.159 \| good	0.656 \| good	7.488 \| good	0.199 \| good
2026-08-16T15:00:00.000Z	58 \| moderate	12.9 \| fine	59 \| fine	33.857 \| good	0.696 \| good	8.049 \| good	0.27 \| good
2026-08-16T16:00:00.000Z	52 \| moderate	9.8 \| good	44 \| good	39.423 \| good	0.69 \| good	7.257 \| good	0.181 \| good
2026-08-16T17:00:00.000Z	40 \| good	7 \| good	31 \| good	42.588 \| good	0.718 \| good	8.325 \| good	0.217 \| good
2026-08-16T18:00:00.000Z	43 \| good	5.6 \| good	24 \| good	45.893 \| good	0.973 \| good	7.749 \| good	0.181 \| good
2026-08-16T19:00:00.000Z	43 \| good	4.9 \| good	21 \| good	45.955 \| good	0.981 \| good	6.895 \| good	0.227 \| good
2026-08-16T20:00:00.000Z	45 \| good	5.3 \| good	23 \| good	49.341 \| good	0.894 \| good	7.693 \| good	0.181 \| good
2026-08-16T21:00:00.000Z	51 \| moderate	5.3 \| good	23 \| good	55.484 \| fine	0.816 \| good	6.396 \| good	0.146 \| good
2026-08-16T22:00:00.000Z	54 \| moderate	4.3 \| good	19 \| good	56.068 \| fine	0.681 \| good	4.391 \| good	0.146 \| good
2026-08-16T23:00:00.000Z	64 \| moderate	4.3 \| good	19 \| good	59.135 \| fine	0.61 \| good	3.976 \| good	0.1 \| good
2026-08-17T00:00:00.000Z	61 \| moderate	3.3 \| good	15 \| good	57.754 \| fine	0.626 \| good	5.049 \| good	0.1 \| good
2026-08-17T01:00:00.000Z	61 \| moderate	2.8 \| good	12 \| good	58.048 \| fine	0.544 \| good	4.762 \| good	0.1 \| good
2026-08-17T02:00:00.000Z	61 \| moderate	2.5 \| good	10 \| good	57.786 \| fine	0.583 \| good	7.461 \| good	0.146 \| good
2026-08-17T03:00:00.000Z	46 \| good	5.983 \| good	26.265 \| good	50.054 \| good	0.205 \| good	5.966 \| good	0.127 \| good
2026-08-17T04:00:00.000Z	44 \| good	2.5 \| good	10 \| good	47.657 \| good	0.657 \| good	12.008 \| good	0.283 \| good
2026-08-17T05:00:00.000Z	41 \| good	2.6 \| good	11 \| good	44.088 \| good	0.697 \| good	13.646 \| good	0.227 \| good
2026-08-17T06:00:00.000Z	41 \| good	2.6 \| good	11 \| good	44.149 \| good	0.505 \| good	12.276 \| good	0.227 \| good
2026-08-17T07:00:00.000Z	32 \| good	2.7 \| good	11 \| good	35.494 \| good	0.641 \| good	15.831 \| good	0.319 \| good
2026-08-17T08:00:00.000Z	37 \| good	2.8 \| good	12 \| good	39.812 \| good	0.722 \| good	17.749 \| good	0.273 \| good
2026-08-17T09:00:00.000Z	38 \| good	2.8 \| good	12 \| good	41.383 \| good	0.595 \| good	16.448 \| good	0.227 \| good
2026-08-17T10:00:00.000Z	30 \| good	3.1 \| good	14 \| good	32.225 \| good	0.737 \| good	12.594 \| good	0.181 \| good
2026-08-17T11:00:00.000Z	28 \| good	3.4 \| good	15 \| good	29.839 \| good	0.737 \| good	17.753 \| good	0.273 \| good
2026-08-17T12:00:00.000Z	22 \| good	3.7 \| good	16 \| good	21.363 \| good	0.6 \| good	17.598 \| good	0.327 \| good
2026-08-17T13:00:00.000Z	28 \| good	4 \| good	18 \| good	29.879 \| good	0.705 \| good	20.744 \| good	0.398 \| good
2026-08-17T14:00:00.000Z	29 \| good	4.015 \| good	18.092 \| good	30.514 \| good	0.714 \| good	20.855 \| good	0.399 \| good
2026-08-17T15:00:00.000Z	36 \| good	3.245 \| good	13.467 \| good	38.953 \| good	0.134 \| good	2.944 \| good	0.12 \| good
2026-08-17T16:00:00.000Z	46 \| good	3.379 \| good	14.491 \| good	49.598 \| good	0.178 \| good	2.075 \| good	0.107 \| good
2026-08-17T17:00:00.000Z	77 \| moderate	4.292 \| good	18.609 \| good	63.386 \| fine	0.237 \| good	1.399 \| good	0.099 \| good
2026-08-17T18:00:00.000Z	108 \| sensitive	3.893 \| good	16.781 \| good	72.614 \| moderate	0.248 \| good	0.869 \| good	0.093 \| good
2026-08-17T19:00:00.000Z	122 \| sensitive	4.368 \| good	19.14 \| good	77.278 \| moderate	0.198 \| good	0.547 \| good	0.088 \| good
2026-08-17T20:00:00.000Z	129 \| sensitive	5.023 \| good	21.584 \| good	79.229 \| moderate	0.192 \| good	0.469 \| good	0.085 \| good
2026-08-17T21:00:00.000Z	126 \| sensitive	5.646 \| good	24.549 \| good	77.533 \| moderate	0.178 \| good	0.458 \| good	0.085 \| good
2026-08-17T22:00:00.000Z	119 \| sensitive	5.33 \| good	23.067 \| good	75.702 \| moderate	0.168 \| good	0.495 \| good	0.086 \| good
2026-08-17T23:00:00.000Z	112 \| sensitive	6.023 \| good	26.765 \| good	74.449 \| moderate	0.153 \| good	0.602 \| good	0.088 \| good
2026-08-18T00:00:00.000Z	80 \| moderate	6.575 \| good	29.236 \| good	64.352 \| fine	0.155 \| good	1.166 \| good	0.093 \| good
2026-08-18T01:00:00.000Z	61 \| moderate	4.764 \| good	20.527 \| good	57.514 \| fine	0.165 \| good	2.467 \| good	0.105 \| good
2026-08-18T02:00:00.000Z	61 \| moderate	4.332 \| good	19.093 \| good	57.68 \| fine	0.183 \| good	4.686 \| good	0.12 \| good
2026-08-18T03:00:00.000Z	50 \| good	4.571 \| good	20.002 \| good	53.788 \| good	0.215 \| good	5.905 \| good	0.129 \| good
2026-08-18T04:00:00.000Z	46 \| good	2.194 \| good	9.187 \| good	50.227 \| good	0.292 \| good	10.152 \| good	0.153 \| good
2026-08-18T05:00:00.000Z	43 \| good	2.618 \| good	10.839 \| good	46.425 \| good	0.281 \| good	11.696 \| good	0.164 \| good
2026-08-18T06:00:00.000Z	42 \| good	2.16 \| good	8.859 \| good	44.668 \| good	0.246 \| good	11.984 \| good	0.169 \| good
2026-08-18T07:00:00.000Z	43 \| good	4.562 \| good	20.011 \| good	45.571 \| good	0.197 \| good	7.539 \| good	0.143 \| good
2026-08-18T08:00:00.000Z	42 \| good	4.533 \| good	19.826 \| good	45.004 \| good	0.186 \| good	6.784 \| good	0.136 \| good
2026-08-18T09:00:00.000Z	39 \| good	4.699 \| good	20.515 \| good	42.233 \| good	0.175 \| good	6.287 \| good	0.13 \| good
2026-08-18T10:00:00.000Z	36 \| good	5.505 \| good	24.125 \| good	38.894 \| good	0.165 \| good	6.06 \| good	0.126 \| good
2026-08-18T11:00:00.000Z	30 \| good	2.655 \| good	11.068 \| good	32.403 \| good	0.158 \| good	5.948 \| good	0.123 \| good
2026-08-18T12:00:00.000Z	25 \| good	3.645 \| good	15.718 \| good	26.591 \| good	0.157 \| good	6.416 \| good	0.125 \| good
2026-08-18T13:00:00.000Z	38 \| good	6.931 \| good	30.775 \| good	23.968 \| good	0.141 \| good	5.381 \| good	0.124 \| good
2026-08-18T14:00:00.000Z	38 \| good	7.273 \| good	32.19 \| good	30.176 \| good	0.143 \| good	4.434 \| good	0.13 \| good
2026-08-18T15:00:00.000Z	35 \| good	4.299 \| good	18.716 \| good	37.942 \| good	0.154 \| good	3.763 \| good	0.128 \| good
2026-08-18T16:00:00.000Z	44 \| good	3.367 \| good	14.488 \| good	46.669 \| good	0.17 \| good	2.203 \| good	0.106 \| good
2026-08-18T17:00:00.000Z	50 \| good	3.749 \| good	16.518 \| good	53.962 \| good	0.183 \| good	0.89 \| good	0.09 \| good
2026-08-18T18:00:00.000Z	54 \| moderate	4.226 \| good	18.544 \| good	56.24 \| fine	0.147 \| good	0.504 \| good	0.085 \| good
2026-08-18T19:00:00.000Z	51 \| moderate	1.871 \| good	7.943 \| good	54.894 \| good	0.141 \| good	0.427 \| good	0.085 \| good
2026-08-18T20:00:00.000Z	51 \| moderate	6.61 \| good	29.198 \| good	55.287 \| fine	0.162 \| good	0.45 \| good	0.087 \| good
2026-08-18T21:00:00.000Z	80 \| moderate	9.643 \| good	42.771 \| good	64.074 \| fine	0.168 \| good	0.526 \| good	0.087 \| good
2026-08-18T22:00:00.000Z	61 \| moderate	13.058 \| fine	58.437 \| fine	57.914 \| fine	0.184 \| good	0.842 \| good	0.09 \| good
2026-08-18T23:00:00.000Z	69 \| moderate	19.455 \| fine	85.939 \| fine	58.964 \| fine	0.184 \| good	1.161 \| good	0.092 \| good
2026-08-19T00:00:00.000Z	81 \| moderate	25.36 \| fine	110.929 \| fine	49.916 \| good	0.199 \| good	2.015 \| good	0.102 \| good
2026-08-19T01:00:00.000Z	79 \| moderate	23.765 \| fine	104.099 \| fine	42.133 \| good	0.216 \| good	3.676 \| good	0.118 \| good
2026-08-19T02:00:00.000Z	71 \| moderate	19.711 \| fine	86.996 \| fine	34.963 \| good	0.218 \| good	5.069 \| good	0.126 \| good
2026-08-19T03:00:00.000Z	71 \| moderate	20.122 \| fine	88.478 \| fine	38.342 \| good	0.236 \| good	6.544 \| good	0.134 \| good
2026-08-19T04:00:00.000Z	69 \| moderate	19.479 \| fine	85.867 \| fine	45.384 \| good	0.209 \| good	8.825 \| good	0.153 \| good
2026-08-19T05:00:00.000Z	69 \| moderate	19.323 \| fine	85.565 \| fine	39.045 \| good	0.209 \| good	10.282 \| good	0.162 \| good
2026-08-19T06:00:00.000Z	67 \| moderate	17.567 \| fine	78.086 \| fine	35.686 \| good	0.202 \| good	11.24 \| good	0.17 \| good
2026-08-19T07:00:00.000Z	38 \| good	7.17 \| good	31.85 \| good	32.893 \| good	0.293 \| good	10.828 \| good	0.164 \| good
2026-08-19T08:00:00.000Z	49 \| good	8.866 \| good	38.748 \| good	34.552 \| good	0.263 \| good	11.278 \| good	0.171 \| good
2026-08-19T09:00:00.000Z	49 \| good	9.333 \| good	41.517 \| good	31.928 \| good	0.229 \| good	11.149 \| good	0.173 \| good
2026-08-19T10:00:00.000Z	52 \| moderate	9.505 \| good	42.204 \| good	28.314 \| good	0.218 \| good	9.988 \| good	0.165 \| good
2026-08-19T11:00:00.000Z	49 \| good	8.761 \| good	38.315 \| good	26.047 \| good	0.226 \| good	8.119 \| good	0.15 \| good
2026-08-19T12:00:00.000Z	54 \| moderate	11.422 \| good	50.568 \| good	21.208 \| good	0.156 \| good	7.265 \| good	0.138 \| good
2026-08-19T13:00:00.000Z	58 \| moderate	12.767 \| fine	57.141 \| fine	18.005 \| good	0.145 \| good	5.811 \| good	0.134 \| good
2026-08-19T14:00:00.000Z	56 \| moderate	12.238 \| fine	54.764 \| good	24.408 \| good	0.155 \| good	4.387 \| good	0.135 \| good

Littleton

Empower business decisions with accurate air quality data

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

0.42ppm

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 11:00:00, 2026-08-16.

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

The best air quality in Littleton, Colorado was observed at 12:00:00 on 2026-08-17.

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

The air quality in Littleton, Colorado right now is Good, with an AQI of 29.

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 4.015 μg/m³.

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

Littleton, Colorado currently has a PM₁₀ concentration of 18.092 μg/m³.

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

The current carbon monoxide (CO) level in Littleton, Colorado is 0.399 ppm.

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

The current sulfur dioxide (SO₂) concentration in Littleton, Colorado is 0.714 ppb.

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

Littleton, Colorado currently has an ozone (O₃) concentration of 30.514 ppm.

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

The current level of nitrogen dioxide (NO₂) in Littleton, Colorado is 20.855 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-08-15T15:00:00.000Z	31 \| good	3.7 \| good	16 \| good	32.826 \| good	0.769 \| good	11.968 \| good	0.292 \| good
2026-08-15T16:00:00.000Z	31 \| good	3.7 \| good	16 \| good	33.103 \| good	0.775 \| good	11.57 \| good	0.242 \| good
2026-08-15T17:00:00.000Z	36 \| good	3.7 \| good	16 \| good	39.127 \| good	0.576 \| good	12.137 \| good	0.242 \| good
2026-08-15T18:00:00.000Z	44 \| good	3.8 \| good	17 \| good	46.575 \| good	0.868 \| good	9.939 \| good	0.196 \| good
2026-08-15T19:00:00.000Z	46 \| good	3.8 \| good	17 \| good	50.03 \| good	0.698 \| good	8.128 \| good	0.188 \| good
2026-08-15T20:00:00.000Z	50 \| good	3.8 \| good	17 \| good	54.305 \| good	0.698 \| good	10.472 \| good	0.28 \| good
2026-08-15T21:00:00.000Z	48 \| good	3.8 \| good	17 \| good	51.748 \| good	0.592 \| good	11.011 \| good	0.234 \| good
2026-08-15T22:00:00.000Z	54 \| moderate	3.4 \| good	15 \| good	56.117 \| fine	0.522 \| good	6.916 \| good	0.188 \| good
2026-08-15T23:00:00.000Z	64 \| moderate	3.4 \| good	15 \| good	59.2 \| fine	0.624 \| good	12.907 \| good	0.273 \| good
2026-08-16T00:00:00.000Z	51 \| moderate	2.7 \| good	11 \| good	54.552 \| good	0.586 \| good	14.193 \| good	0.326 \| good
2026-08-16T01:00:00.000Z	51 \| moderate	3 \| good	12 \| good	55.191 \| fine	0.513 \| good	11.125 \| good	0.234 \| good
2026-08-16T02:00:00.000Z	49 \| good	3 \| good	12 \| good	53.153 \| good	0.552 \| good	14.477 \| good	0.333 \| good
2026-08-16T03:00:00.000Z	41 \| good	3.2 \| good	14 \| good	43.863 \| good	0.654 \| good	11.996 \| good	0.379 \| good
2026-08-16T04:00:00.000Z	39 \| good	4.3 \| good	19 \| good	42.357 \| good	0.737 \| good	14.308 \| good	0.234 \| good
2026-08-16T05:00:00.000Z	34 \| good	4.3 \| good	19 \| good	37.208 \| good	0.513 \| good	15.742 \| good	0.385 \| good
2026-08-16T06:00:00.000Z	30 \| good	4.3 \| good	19 \| good	31.633 \| good	0.696 \| good	17.788 \| good	0.513 \| good
2026-08-16T07:00:00.000Z	27 \| good	3.665 \| good	13.996 \| good	29.309 \| good	0.655 \| good	15.558 \| good	0.369 \| good
2026-08-16T08:00:00.000Z	27 \| good	4.6 \| good	20 \| good	29.287 \| good	0.655 \| good	13.481 \| good	0.27 \| good
2026-08-16T09:00:00.000Z	27 \| good	4.9 \| good	21 \| good	27.123 \| good	0.748 \| good	12.873 \| good	0.361 \| good
2026-08-16T10:00:00.000Z	33 \| good	5.8 \| good	25 \| good	25.329 \| good	0.736 \| good	11.174 \| good	0.273 \| good
2026-08-16T11:00:00.000Z	33 \| good	6 \| good	27 \| good	22.993 \| good	0.602 \| good	10.526 \| good	0.154 \| good
2026-08-16T12:00:00.000Z	33 \| good	6.4 \| good	29 \| good	28.718 \| good	0.48 \| good	6.172 \| good	0.189 \| good
2026-08-16T13:00:00.000Z	52 \| moderate	10.1 \| good	45 \| good	25.484 \| good	0.644 \| good	8.806 \| good	0.189 \| good
2026-08-16T14:00:00.000Z	58 \| moderate	13.2 \| fine	59 \| fine	28.159 \| good	0.656 \| good	7.488 \| good	0.199 \| good
2026-08-16T15:00:00.000Z	58 \| moderate	12.9 \| fine	59 \| fine	33.857 \| good	0.696 \| good	8.049 \| good	0.27 \| good
2026-08-16T16:00:00.000Z	52 \| moderate	9.8 \| good	44 \| good	39.423 \| good	0.69 \| good	7.257 \| good	0.181 \| good
2026-08-16T17:00:00.000Z	40 \| good	7 \| good	31 \| good	42.588 \| good	0.718 \| good	8.325 \| good	0.217 \| good
2026-08-16T18:00:00.000Z	43 \| good	5.6 \| good	24 \| good	45.893 \| good	0.973 \| good	7.749 \| good	0.181 \| good
2026-08-16T19:00:00.000Z	43 \| good	4.9 \| good	21 \| good	45.955 \| good	0.981 \| good	6.895 \| good	0.227 \| good
2026-08-16T20:00:00.000Z	45 \| good	5.3 \| good	23 \| good	49.341 \| good	0.894 \| good	7.693 \| good	0.181 \| good
2026-08-16T21:00:00.000Z	51 \| moderate	5.3 \| good	23 \| good	55.484 \| fine	0.816 \| good	6.396 \| good	0.146 \| good
2026-08-16T22:00:00.000Z	54 \| moderate	4.3 \| good	19 \| good	56.068 \| fine	0.681 \| good	4.391 \| good	0.146 \| good
2026-08-16T23:00:00.000Z	64 \| moderate	4.3 \| good	19 \| good	59.135 \| fine	0.61 \| good	3.976 \| good	0.1 \| good
2026-08-17T00:00:00.000Z	61 \| moderate	3.3 \| good	15 \| good	57.754 \| fine	0.626 \| good	5.049 \| good	0.1 \| good
2026-08-17T01:00:00.000Z	61 \| moderate	2.8 \| good	12 \| good	58.048 \| fine	0.544 \| good	4.762 \| good	0.1 \| good
2026-08-17T02:00:00.000Z	61 \| moderate	2.5 \| good	10 \| good	57.786 \| fine	0.583 \| good	7.461 \| good	0.146 \| good
2026-08-17T03:00:00.000Z	46 \| good	5.983 \| good	26.265 \| good	50.054 \| good	0.205 \| good	5.966 \| good	0.127 \| good
2026-08-17T04:00:00.000Z	44 \| good	2.5 \| good	10 \| good	47.657 \| good	0.657 \| good	12.008 \| good	0.283 \| good
2026-08-17T05:00:00.000Z	41 \| good	2.6 \| good	11 \| good	44.088 \| good	0.697 \| good	13.646 \| good	0.227 \| good
2026-08-17T06:00:00.000Z	41 \| good	2.6 \| good	11 \| good	44.149 \| good	0.505 \| good	12.276 \| good	0.227 \| good
2026-08-17T07:00:00.000Z	32 \| good	2.7 \| good	11 \| good	35.494 \| good	0.641 \| good	15.831 \| good	0.319 \| good
2026-08-17T08:00:00.000Z	37 \| good	2.8 \| good	12 \| good	39.812 \| good	0.722 \| good	17.749 \| good	0.273 \| good
2026-08-17T09:00:00.000Z	38 \| good	2.8 \| good	12 \| good	41.383 \| good	0.595 \| good	16.448 \| good	0.227 \| good
2026-08-17T10:00:00.000Z	30 \| good	3.1 \| good	14 \| good	32.225 \| good	0.737 \| good	12.594 \| good	0.181 \| good
2026-08-17T11:00:00.000Z	28 \| good	3.4 \| good	15 \| good	29.839 \| good	0.737 \| good	17.753 \| good	0.273 \| good
2026-08-17T12:00:00.000Z	22 \| good	3.7 \| good	16 \| good	21.363 \| good	0.6 \| good	17.598 \| good	0.327 \| good
2026-08-17T13:00:00.000Z	28 \| good	4 \| good	18 \| good	29.879 \| good	0.705 \| good	20.744 \| good	0.398 \| good
2026-08-17T14:00:00.000Z	29 \| good	4.015 \| good	18.092 \| good	30.514 \| good	0.714 \| good	20.855 \| good	0.399 \| good
2026-08-17T15:00:00.000Z	36 \| good	3.245 \| good	13.467 \| good	38.953 \| good	0.134 \| good	2.944 \| good	0.12 \| good
2026-08-17T16:00:00.000Z	46 \| good	3.379 \| good	14.491 \| good	49.598 \| good	0.178 \| good	2.075 \| good	0.107 \| good
2026-08-17T17:00:00.000Z	77 \| moderate	4.292 \| good	18.609 \| good	63.386 \| fine	0.237 \| good	1.399 \| good	0.099 \| good
2026-08-17T18:00:00.000Z	108 \| sensitive	3.893 \| good	16.781 \| good	72.614 \| moderate	0.248 \| good	0.869 \| good	0.093 \| good
2026-08-17T19:00:00.000Z	122 \| sensitive	4.368 \| good	19.14 \| good	77.278 \| moderate	0.198 \| good	0.547 \| good	0.088 \| good
2026-08-17T20:00:00.000Z	129 \| sensitive	5.023 \| good	21.584 \| good	79.229 \| moderate	0.192 \| good	0.469 \| good	0.085 \| good
2026-08-17T21:00:00.000Z	126 \| sensitive	5.646 \| good	24.549 \| good	77.533 \| moderate	0.178 \| good	0.458 \| good	0.085 \| good
2026-08-17T22:00:00.000Z	119 \| sensitive	5.33 \| good	23.067 \| good	75.702 \| moderate	0.168 \| good	0.495 \| good	0.086 \| good
2026-08-17T23:00:00.000Z	112 \| sensitive	6.023 \| good	26.765 \| good	74.449 \| moderate	0.153 \| good	0.602 \| good	0.088 \| good
2026-08-18T00:00:00.000Z	80 \| moderate	6.575 \| good	29.236 \| good	64.352 \| fine	0.155 \| good	1.166 \| good	0.093 \| good
2026-08-18T01:00:00.000Z	61 \| moderate	4.764 \| good	20.527 \| good	57.514 \| fine	0.165 \| good	2.467 \| good	0.105 \| good
2026-08-18T02:00:00.000Z	61 \| moderate	4.332 \| good	19.093 \| good	57.68 \| fine	0.183 \| good	4.686 \| good	0.12 \| good
2026-08-18T03:00:00.000Z	50 \| good	4.571 \| good	20.002 \| good	53.788 \| good	0.215 \| good	5.905 \| good	0.129 \| good
2026-08-18T04:00:00.000Z	46 \| good	2.194 \| good	9.187 \| good	50.227 \| good	0.292 \| good	10.152 \| good	0.153 \| good
2026-08-18T05:00:00.000Z	43 \| good	2.618 \| good	10.839 \| good	46.425 \| good	0.281 \| good	11.696 \| good	0.164 \| good
2026-08-18T06:00:00.000Z	42 \| good	2.16 \| good	8.859 \| good	44.668 \| good	0.246 \| good	11.984 \| good	0.169 \| good
2026-08-18T07:00:00.000Z	43 \| good	4.562 \| good	20.011 \| good	45.571 \| good	0.197 \| good	7.539 \| good	0.143 \| good
2026-08-18T08:00:00.000Z	42 \| good	4.533 \| good	19.826 \| good	45.004 \| good	0.186 \| good	6.784 \| good	0.136 \| good
2026-08-18T09:00:00.000Z	39 \| good	4.699 \| good	20.515 \| good	42.233 \| good	0.175 \| good	6.287 \| good	0.13 \| good
2026-08-18T10:00:00.000Z	36 \| good	5.505 \| good	24.125 \| good	38.894 \| good	0.165 \| good	6.06 \| good	0.126 \| good
2026-08-18T11:00:00.000Z	30 \| good	2.655 \| good	11.068 \| good	32.403 \| good	0.158 \| good	5.948 \| good	0.123 \| good
2026-08-18T12:00:00.000Z	25 \| good	3.645 \| good	15.718 \| good	26.591 \| good	0.157 \| good	6.416 \| good	0.125 \| good
2026-08-18T13:00:00.000Z	38 \| good	6.931 \| good	30.775 \| good	23.968 \| good	0.141 \| good	5.381 \| good	0.124 \| good
2026-08-18T14:00:00.000Z	38 \| good	7.273 \| good	32.19 \| good	30.176 \| good	0.143 \| good	4.434 \| good	0.13 \| good
2026-08-18T15:00:00.000Z	35 \| good	4.299 \| good	18.716 \| good	37.942 \| good	0.154 \| good	3.763 \| good	0.128 \| good
2026-08-18T16:00:00.000Z	44 \| good	3.367 \| good	14.488 \| good	46.669 \| good	0.17 \| good	2.203 \| good	0.106 \| good
2026-08-18T17:00:00.000Z	50 \| good	3.749 \| good	16.518 \| good	53.962 \| good	0.183 \| good	0.89 \| good	0.09 \| good
2026-08-18T18:00:00.000Z	54 \| moderate	4.226 \| good	18.544 \| good	56.24 \| fine	0.147 \| good	0.504 \| good	0.085 \| good
2026-08-18T19:00:00.000Z	51 \| moderate	1.871 \| good	7.943 \| good	54.894 \| good	0.141 \| good	0.427 \| good	0.085 \| good
2026-08-18T20:00:00.000Z	51 \| moderate	6.61 \| good	29.198 \| good	55.287 \| fine	0.162 \| good	0.45 \| good	0.087 \| good
2026-08-18T21:00:00.000Z	80 \| moderate	9.643 \| good	42.771 \| good	64.074 \| fine	0.168 \| good	0.526 \| good	0.087 \| good
2026-08-18T22:00:00.000Z	61 \| moderate	13.058 \| fine	58.437 \| fine	57.914 \| fine	0.184 \| good	0.842 \| good	0.09 \| good
2026-08-18T23:00:00.000Z	69 \| moderate	19.455 \| fine	85.939 \| fine	58.964 \| fine	0.184 \| good	1.161 \| good	0.092 \| good
2026-08-19T00:00:00.000Z	81 \| moderate	25.36 \| fine	110.929 \| fine	49.916 \| good	0.199 \| good	2.015 \| good	0.102 \| good
2026-08-19T01:00:00.000Z	79 \| moderate	23.765 \| fine	104.099 \| fine	42.133 \| good	0.216 \| good	3.676 \| good	0.118 \| good
2026-08-19T02:00:00.000Z	71 \| moderate	19.711 \| fine	86.996 \| fine	34.963 \| good	0.218 \| good	5.069 \| good	0.126 \| good
2026-08-19T03:00:00.000Z	71 \| moderate	20.122 \| fine	88.478 \| fine	38.342 \| good	0.236 \| good	6.544 \| good	0.134 \| good
2026-08-19T04:00:00.000Z	69 \| moderate	19.479 \| fine	85.867 \| fine	45.384 \| good	0.209 \| good	8.825 \| good	0.153 \| good
2026-08-19T05:00:00.000Z	69 \| moderate	19.323 \| fine	85.565 \| fine	39.045 \| good	0.209 \| good	10.282 \| good	0.162 \| good
2026-08-19T06:00:00.000Z	67 \| moderate	17.567 \| fine	78.086 \| fine	35.686 \| good	0.202 \| good	11.24 \| good	0.17 \| good
2026-08-19T07:00:00.000Z	38 \| good	7.17 \| good	31.85 \| good	32.893 \| good	0.293 \| good	10.828 \| good	0.164 \| good
2026-08-19T08:00:00.000Z	49 \| good	8.866 \| good	38.748 \| good	34.552 \| good	0.263 \| good	11.278 \| good	0.171 \| good
2026-08-19T09:00:00.000Z	49 \| good	9.333 \| good	41.517 \| good	31.928 \| good	0.229 \| good	11.149 \| good	0.173 \| good
2026-08-19T10:00:00.000Z	52 \| moderate	9.505 \| good	42.204 \| good	28.314 \| good	0.218 \| good	9.988 \| good	0.165 \| good
2026-08-19T11:00:00.000Z	49 \| good	8.761 \| good	38.315 \| good	26.047 \| good	0.226 \| good	8.119 \| good	0.15 \| good
2026-08-19T12:00:00.000Z	54 \| moderate	11.422 \| good	50.568 \| good	21.208 \| good	0.156 \| good	7.265 \| good	0.138 \| good
2026-08-19T13:00:00.000Z	58 \| moderate	12.767 \| fine	57.141 \| fine	18.005 \| good	0.145 \| good	5.811 \| good	0.134 \| good
2026-08-19T14:00:00.000Z	56 \| moderate	12.238 \| fine	54.764 \| good	24.408 \| good	0.155 \| good	4.387 \| good	0.135 \| 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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