What is the PM10 level in Frederick, Colorado at the moment?

The PM10 concentration in Frederick, Colorado is 5.614 μg/m3 at the moment.

What is the sulfur dioxide (SO2) level in Frederick, Colorado at the moment?

Currently, Frederick, Colorado has a sulfur dioxide (SO2) concentration of 0.364 ppb.

What is the ozone (O3) level in Frederick, Colorado at the moment?

The current ozone (O3) level in Frederick, Colorado at the moment is 46.5 ppm.

What is the nitrogen dioxide (NO2) level in Frederick, Colorado at the moment?

Nitrogen dioxide (NO2) level in Frederick, Colorado at the moment is 2.938 ppb.

Live air quality index in Frederick, Colorado today

Q: What is the PM2.5 level in Frederick, Colorado at the moment?

PM2.5 levels in Frederick, Colorado are currently 1.343 μg/m3.

Stay updated with real-time air quality in Frederick, 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

Frederick, Colorado

Last updated: ... (Local time)

Major air pollutants in Frederick, Colorado

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

1.34 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

5.61 μg/m³

155

255

425

605+

Ozone (O₃)

46.50 ppb

201

201+

Sulfur Dioxide (SO₂)

0.36 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

2.94 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.21 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Frederick, Colorado

Get Live Pollen Counts

Frederick, Colorado

Scroll To Air Quality Map

Track live Frederick, Colorado air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-04-22T06:00:00.000Z	44 \| good	5.105 \| good	27.558 \| good	46.946 \| good	0.629 \| good	13.726 \| good	0.241 \| good
2026-04-22T07:00:00.000Z	36 \| good	5.827 \| good	29.09 \| good	38.687 \| good	0.659 \| good	11.077 \| good	0.223 \| good
2026-04-22T08:00:00.000Z	36 \| good	6.168 \| good	26.385 \| good	39.199 \| good	0.647 \| good	10.017 \| good	0.167 \| good
2026-04-22T09:00:00.000Z	37 \| good	5.325 \| good	21.371 \| good	40.03 \| good	0.681 \| good	7.278 \| good	0.141 \| good
2026-04-22T10:00:00.000Z	34 \| good	5.983 \| good	26.983 \| good	36.876 \| good	0.617 \| good	8.498 \| good	0.166 \| good
2026-04-22T11:00:00.000Z	33 \| good	5.701 \| good	27.184 \| good	29.107 \| good	0.83 \| good	12.154 \| good	0.189 \| good
2026-04-22T12:00:00.000Z	38 \| good	6.979 \| good	32.399 \| good	27.541 \| good	0.901 \| good	15.817 \| good	0.287 \| good
2026-04-22T13:00:00.000Z	33 \| good	5.54 \| good	28.214 \| good	32.83 \| good	0.877 \| good	18.821 \| good	0.314 \| good
2026-04-22T14:00:00.000Z	38 \| good	7.266 \| good	31.942 \| good	34.059 \| good	0.82 \| good	25.45 \| good	0.258 \| good
2026-04-22T15:00:00.000Z	44 \| good	7.975 \| good	41.972 \| good	37.064 \| good	0.958 \| good	18.462 \| good	0.306 \| good
2026-04-22T16:00:00.000Z	47 \| good	7.535 \| good	50.523 \| good	38.948 \| good	0.632 \| good	14.985 \| good	0.281 \| good
2026-04-22T17:00:00.000Z	45 \| good	6.371 \| good	49.194 \| good	47.313 \| good	0.534 \| good	10.177 \| good	0.233 \| good
2026-04-22T18:00:00.000Z	49 \| good	5.097 \| good	40.799 \| good	52.804 \| good	0.414 \| good	7.989 \| good	0.215 \| good
2026-04-22T19:00:00.000Z	54 \| moderate	4.162 \| good	34.293 \| good	55.967 \| fine	0.464 \| good	6.506 \| good	0.15 \| good
2026-04-22T20:00:00.000Z	51 \| moderate	3.373 \| good	18.649 \| good	55.281 \| fine	0.386 \| good	6.844 \| good	0.19 \| good
2026-04-22T21:00:00.000Z	71 \| moderate	2.631 \| good	12.24 \| good	61.086 \| fine	0.351 \| good	6.6 \| good	0.212 \| good
2026-04-22T22:00:00.000Z	84 \| moderate	2.965 \| good	33.827 \| good	64.551 \| fine	0.412 \| good	7.928 \| good	0.212 \| good
2026-04-22T23:00:00.000Z	77 \| moderate	2.788 \| good	37.679 \| good	62.585 \| fine	0.298 \| good	5.162 \| good	0.164 \| good
2026-04-23T00:00:00.000Z	67 \| moderate	3.716 \| good	46.978 \| good	60.16 \| fine	0.361 \| good	4.374 \| good	0.164 \| good
2026-04-23T01:00:00.000Z	54 \| moderate	3.857 \| good	26.242 \| good	56.393 \| fine	0.23 \| good	6.606 \| good	0.147 \| good
2026-04-23T02:00:00.000Z	48 \| good	2.469 \| good	14.116 \| good	52.464 \| good	0.327 \| good	7.028 \| good	0.147 \| good
2026-04-23T03:00:00.000Z	50 \| good	2.713 \| good	16.646 \| good	53.676 \| good	0.462 \| good	7.822 \| good	0.164 \| good
2026-04-23T04:00:00.000Z	48 \| good	2.964 \| good	16.215 \| good	51.692 \| good	0.266 \| good	8.074 \| good	0.192 \| good
2026-04-23T05:00:00.000Z	44 \| good	5.351 \| good	48.294 \| good	46.662 \| good	0.3 \| good	7.565 \| good	0.174 \| good
2026-04-23T06:00:00.000Z	47 \| good	3.67 \| good	28.757 \| good	51.475 \| good	0.283 \| good	7.821 \| good	0.147 \| good
2026-04-23T07:00:00.000Z	49 \| good	6.973 \| good	24.693 \| good	53.27 \| good	0.499 \| good	5.109 \| good	0.123 \| good
2026-04-23T08:00:00.000Z	47 \| good	4.745 \| good	44.309 \| good	51.115 \| good	0.495 \| good	6.411 \| good	0.1 \| good
2026-04-23T09:00:00.000Z	46 \| good	4.111 \| good	37.197 \| good	49.901 \| good	0.292 \| good	4.928 \| good	0.1 \| good
2026-04-23T10:00:00.000Z	44 \| good	3.728 \| good	28.893 \| good	46.924 \| good	0.379 \| good	6.273 \| good	0.1 \| good
2026-04-23T11:00:00.000Z	40 \| good	4.36 \| good	36.941 \| good	42.511 \| good	0.447 \| good	10.701 \| good	0.173 \| good
2026-04-23T12:00:00.000Z	44 \| good	3.986 \| good	26.102 \| good	46.777 \| good	0.501 \| good	20.592 \| good	0.201 \| good
2026-04-23T13:00:00.000Z	50 \| good	3.559 \| good	28.79 \| good	54.107 \| good	0.451 \| good	30.659 \| good	0.248 \| good
2026-04-23T14:00:00.000Z	61 \| moderate	3.808 \| good	17.142 \| good	57.843 \| fine	0.489 \| good	22.172 \| good	0.197 \| good
2026-04-23T15:00:00.000Z	71 \| moderate	3.778 \| good	22.228 \| good	60.567 \| fine	0.653 \| good	6.273 \| good	0.194 \| good
2026-04-23T16:00:00.000Z	61 \| moderate	3.179 \| good	36.234 \| good	57.87 \| fine	0.464 \| good	6.348 \| good	0.147 \| good
2026-04-23T17:00:00.000Z	58 \| moderate	2.409 \| good	27.593 \| good	57.456 \| fine	0.292 \| good	4.583 \| good	0.147 \| good
2026-04-23T18:00:00.000Z	50 \| good	1.542 \| good	9.187 \| good	54.069 \| good	0.467 \| good	4.595 \| good	0.147 \| good
2026-04-23T19:00:00.000Z	47 \| good	1.577 \| good	16.748 \| good	51.293 \| good	0.319 \| good	5.176 \| good	0.187 \| good
2026-04-23T20:00:00.000Z	50 \| good	1.352 \| good	15.712 \| good	53.671 \| good	0.248 \| good	7.595 \| good	0.147 \| good
2026-04-23T21:00:00.000Z	51 \| moderate	1.29 \| good	12.02 \| good	54.597 \| good	0.428 \| good	6.159 \| good	0.17 \| good
2026-04-23T22:00:00.000Z	49 \| good	1.514 \| good	15.493 \| good	52.52 \| good	0.25 \| good	5.093 \| good	0.197 \| good
2026-04-23T23:00:00.000Z	48 \| good	1.649 \| good	13.836 \| good	52.339 \| good	0.45 \| good	4.876 \| good	0.187 \| good
2026-04-24T00:00:00.000Z	45 \| good	1.067 \| good	22.258 \| good	49.137 \| good	0.403 \| good	6.066 \| good	0.17 \| good
2026-04-24T01:00:00.000Z	43 \| good	0.861 \| good	7.684 \| good	45.914 \| good	0.285 \| good	7.344 \| good	0.17 \| good
2026-04-24T02:00:00.000Z	41 \| good	0.931 \| good	5.527 \| good	43.543 \| good	0.62 \| good	7.367 \| good	0.17 \| good
2026-04-24T03:00:00.000Z	39 \| good	1.195 \| good	5 \| good	41.929 \| good	0.297 \| good	5.213 \| good	0.151 \| good
2026-04-24T04:00:00.000Z	43 \| good	1.215 \| good	8.258 \| good	45.545 \| good	0.474 \| good	4.361 \| good	0.181 \| good
2026-04-24T05:00:00.000Z	43 \| good	1.343 \| good	5.614 \| good	46.5 \| good	0.364 \| good	2.938 \| good	0.215 \| good
2026-04-24T05:00:00.000Z	44 \| good	1.343 \| good	5.614 \| good	46.5 \| good	0.364 \| good	2.938 \| good	0.215 \| good
2026-04-24T06:00:00.000Z	44 \| good	7.817 \| good	34.251 \| good	44.145 \| good	0.569 \| good	10.698 \| good	0.181 \| good
2026-04-24T07:00:00.000Z	71 \| moderate	19.643 \| fine	86.922 \| fine	38.347 \| good	0.526 \| good	9.419 \| good	0.173 \| good
2026-04-24T08:00:00.000Z	99 \| moderate	34.794 \| fine	151.278 \| fine	31.152 \| good	0.483 \| good	8.14 \| good	0.165 \| good
2026-04-24T09:00:00.000Z	115 \| sensitive	41.162 \| moderate	182.225 \| moderate	26.714 \| good	0.44 \| good	6.861 \| good	0.157 \| good
2026-04-24T10:00:00.000Z	100 \| moderate	35.443 \| fine	153.751 \| fine	28.162 \| good	0.411 \| good	6.596 \| good	0.154 \| good
2026-04-24T11:00:00.000Z	84 \| moderate	27.145 \| fine	117.632 \| fine	25.797 \| good	0.382 \| good	6.331 \| good	0.15 \| good
2026-04-24T12:00:00.000Z	75 \| moderate	22.114 \| fine	97.091 \| fine	27.616 \| good	0.353 \| good	6.066 \| good	0.147 \| good
2026-04-24T13:00:00.000Z	60 \| moderate	13.829 \| fine	61.928 \| fine	34.253 \| good	0.413 \| good	5.47 \| good	0.15 \| good
2026-04-24T14:00:00.000Z	49 \| good	9.106 \| good	40.659 \| good	41.144 \| good	0.473 \| good	4.875 \| good	0.152 \| good
2026-04-24T15:00:00.000Z	44 \| good	8.328 \| good	36.51 \| good	44.461 \| good	0.532 \| good	4.279 \| good	0.155 \| good
2026-04-24T16:00:00.000Z	44 \| good	8.164 \| good	35.789 \| good	47.631 \| good	0.499 \| good	3.386 \| good	0.145 \| good
2026-04-24T17:00:00.000Z	46 \| good	8.214 \| good	35.927 \| good	49.828 \| good	0.465 \| good	2.493 \| good	0.135 \| good
2026-04-24T18:00:00.000Z	49 \| good	9.262 \| good	41.325 \| good	50.872 \| good	0.432 \| good	1.6 \| good	0.124 \| good
2026-04-24T19:00:00.000Z	56 \| moderate	11.929 \| good	53.218 \| good	50.395 \| good	0.37 \| good	1.305 \| good	0.121 \| good
2026-04-24T20:00:00.000Z	60 \| moderate	14.092 \| fine	62.241 \| fine	51.948 \| good	0.309 \| good	1.009 \| good	0.117 \| good
2026-04-24T21:00:00.000Z	50 \| good	9.27 \| good	41.382 \| good	53.668 \| good	0.248 \| good	0.714 \| good	0.113 \| good
2026-04-24T22:00:00.000Z	51 \| moderate	3.987 \| good	17.635 \| good	54.6 \| good	0.232 \| good	0.758 \| good	0.113 \| good
2026-04-24T23:00:00.000Z	51 \| moderate	3.895 \| good	16.754 \| good	55.392 \| fine	0.215 \| good	0.801 \| good	0.114 \| good
2026-04-25T00:00:00.000Z	69 \| moderate	19.285 \| fine	85.301 \| fine	53.574 \| good	0.199 \| good	0.845 \| good	0.114 \| good
2026-04-25T01:00:00.000Z	134 \| sensitive	48.56 \| moderate	215.046 \| moderate	50.862 \| good	0.283 \| good	3.539 \| good	0.133 \| good
2026-04-25T02:00:00.000Z	181 \| unhealthy	98.704 \| poor	299.231 \| poor	46.13 \| good	0.366 \| good	6.234 \| good	0.151 \| good
2026-04-25T03:00:00.000Z	191 \| unhealthy	113.419 \| poor	314.498 \| poor	46.138 \| good	0.45 \| good	8.928 \| good	0.169 \| good
2026-04-25T04:00:00.000Z	195 \| unhealthy	117.51 \| poor	319.462 \| poor	43.664 \| good	0.422 \| good	9.038 \| good	0.17 \| good
2026-04-25T05:00:00.000Z	154 \| unhealthy	59.99 \| poor	255.596 \| poor	37.265 \| good	0.393 \| good	9.149 \| good	0.17 \| good
2026-04-25T06:00:00.000Z	37 \| good	2.091 \| good	8.485 \| good	40.354 \| good	0.365 \| good	9.259 \| good	0.171 \| good
2026-04-25T07:00:00.000Z	35 \| good	2.029 \| good	8.135 \| good	37.614 \| good	0.311 \| good	6.869 \| good	0.159 \| good
2026-04-25T08:00:00.000Z	37 \| good	3.099 \| good	13.637 \| good	40.212 \| good	0.256 \| good	4.478 \| good	0.147 \| good
2026-04-25T09:00:00.000Z	39 \| good	2.564 \| good	10.121 \| good	42.151 \| good	0.202 \| good	2.088 \| good	0.135 \| good
2026-04-25T10:00:00.000Z	39 \| good	1.801 \| good	7.802 \| good	42.367 \| good	0.215 \| good	2.152 \| good	0.135 \| good
2026-04-25T11:00:00.000Z	36 \| good	2.214 \| good	9.097 \| good	39.43 \| good	0.228 \| good	2.217 \| good	0.136 \| good
2026-04-25T12:00:00.000Z	36 \| good	2.845 \| good	12.047 \| good	38.958 \| good	0.241 \| good	2.281 \| good	0.136 \| good
2026-04-25T13:00:00.000Z	36 \| good	3.514 \| good	15.289 \| good	39.364 \| good	0.262 \| good	2.257 \| good	0.137 \| good
2026-04-25T14:00:00.000Z	37 \| good	4.073 \| good	17.991 \| good	39.581 \| good	0.284 \| good	2.233 \| good	0.139 \| good
2026-04-25T15:00:00.000Z	37 \| good	3.648 \| good	16.125 \| good	40.366 \| good	0.305 \| good	2.209 \| good	0.14 \| good
2026-04-25T16:00:00.000Z	39 \| good	3.268 \| good	14.089 \| good	41.61 \| good	0.329 \| good	2.016 \| good	0.139 \| good
2026-04-25T17:00:00.000Z	42 \| good	3.118 \| good	12.745 \| good	45.022 \| good	0.353 \| good	1.823 \| good	0.138 \| good
2026-04-25T18:00:00.000Z	44 \| good	3.711 \| good	16.115 \| good	47.934 \| good	0.377 \| good	1.63 \| good	0.137 \| good
2026-04-25T19:00:00.000Z	46 \| good	4.034 \| good	17.954 \| good	50.362 \| good	0.351 \| good	1.487 \| good	0.134 \| good
2026-04-25T20:00:00.000Z	48 \| good	4.433 \| good	19.295 \| good	52.074 \| good	0.325 \| good	1.344 \| good	0.131 \| good
2026-04-25T21:00:00.000Z	49 \| good	4.498 \| good	19.575 \| good	52.525 \| good	0.299 \| good	1.2 \| good	0.128 \| good
2026-04-25T22:00:00.000Z	48 \| good	2.193 \| good	8.923 \| good	52.025 \| good	0.296 \| good	1.305 \| good	0.129 \| good
2026-04-25T23:00:00.000Z	47 \| good	0.695 \| good	2.79 \| good	51.118 \| good	0.293 \| good	1.409 \| good	0.129 \| good
2026-04-26T00:00:00.000Z	45 \| good	5.48 \| good	23.248 \| good	49.32 \| good	0.289 \| good	1.514 \| good	0.13 \| good
2026-04-26T01:00:00.000Z	44 \| good	3.724 \| good	16.214 \| good	48.204 \| good	0.361 \| good	3.013 \| good	0.14 \| good
2026-04-26T02:00:00.000Z	36 \| good	4.202 \| good	18.172 \| good	38.824 \| good	0.433 \| good	4.511 \| good	0.151 \| good
2026-04-26T03:00:00.000Z	36 \| good	4.484 \| good	19.219 \| good	38.863 \| good	0.505 \| good	6.01 \| good	0.162 \| good
2026-04-26T04:00:00.000Z	37 \| good	3.173 \| good	13.829 \| good	40.233 \| good	0.549 \| good	6.599 \| good	0.166 \| good
2026-04-26T05:00:00.000Z	37 \| good	2.433 \| good	9.912 \| good	40.21 \| good	0.593 \| good	7.187 \| good	0.171 \| good

Frederick

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Frederick, Colorado air quality map: Stay updated on AQI near you

0.19ppm

How accurate is Colorado, USA air quality data?

Air quality and pollutant data for Colorado, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.

Source: Ambee Data Sources

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Frequently asked questions

How often is air quality information updated for Frederick, Colorado?

The air quality information for Frederick, Colorado is updated every hour for accuracy.

What time in the last 24 hours was the air quality in Frederick, Colorado at its worst?

In the past 24 hours, the air quality in Frederick, Colorado was at its worst at 03:00:00 on 2026-04-23.

When did Frederick, Colorado experience the best air quality in the last 24 hours?

In the last 24 hours, the best air quality in Frederick, Colorado was observed at 03:00:00 on 2026-04-24.

What is the AQI in Frederick, Colorado right now?

As of now, the AQI in Frederick, Colorado is 44, indicating Good conditions.

What is the most common type of pollution in Frederick, Colorado?

Frederick, Colorado air has the highest levels of O3.

What should I do in case of poor air quality in Frederick, Colorado?

Poor air quality in Frederick, Colorado means it's advisable to stay indoors and wear a mask for your protection.

What is the PM_2.5 level in Frederick, Colorado at the moment?

PM_2.5 levels in Frederick, Colorado are currently 1.343 μg/m³.

What is the PM₁₀ level in Frederick, Colorado at the moment?

The PM₁₀ concentration in Frederick, Colorado is 5.614 μg/m³ at the moment.

What is the carbon monoxide (CO) level in Frederick, Colorado at the moment?

The current carbon monoxide (CO) concentration in Frederick, Colorado is 0.215 ppm.

What is the sulfur dioxide (SO₂) level in Frederick, Colorado at the moment?

Currently, Frederick, Colorado has a sulfur dioxide (SO₂) concentration of 0.364 ppb.

What is the ozone (O₃) level in Frederick, Colorado at the moment?

The current ozone (O₃) level in Frederick, Colorado at the moment is 46.5 ppm.

What is the nitrogen dioxide (NO₂) level in Frederick, Colorado at the moment?

Nitrogen dioxide (NO₂) level in Frederick, Colorado at the moment is 2.938 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-04-22T06:00:00.000Z	44 \| good	5.105 \| good	27.558 \| good	46.946 \| good	0.629 \| good	13.726 \| good	0.241 \| good
2026-04-22T07:00:00.000Z	36 \| good	5.827 \| good	29.09 \| good	38.687 \| good	0.659 \| good	11.077 \| good	0.223 \| good
2026-04-22T08:00:00.000Z	36 \| good	6.168 \| good	26.385 \| good	39.199 \| good	0.647 \| good	10.017 \| good	0.167 \| good
2026-04-22T09:00:00.000Z	37 \| good	5.325 \| good	21.371 \| good	40.03 \| good	0.681 \| good	7.278 \| good	0.141 \| good
2026-04-22T10:00:00.000Z	34 \| good	5.983 \| good	26.983 \| good	36.876 \| good	0.617 \| good	8.498 \| good	0.166 \| good
2026-04-22T11:00:00.000Z	33 \| good	5.701 \| good	27.184 \| good	29.107 \| good	0.83 \| good	12.154 \| good	0.189 \| good
2026-04-22T12:00:00.000Z	38 \| good	6.979 \| good	32.399 \| good	27.541 \| good	0.901 \| good	15.817 \| good	0.287 \| good
2026-04-22T13:00:00.000Z	33 \| good	5.54 \| good	28.214 \| good	32.83 \| good	0.877 \| good	18.821 \| good	0.314 \| good
2026-04-22T14:00:00.000Z	38 \| good	7.266 \| good	31.942 \| good	34.059 \| good	0.82 \| good	25.45 \| good	0.258 \| good
2026-04-22T15:00:00.000Z	44 \| good	7.975 \| good	41.972 \| good	37.064 \| good	0.958 \| good	18.462 \| good	0.306 \| good
2026-04-22T16:00:00.000Z	47 \| good	7.535 \| good	50.523 \| good	38.948 \| good	0.632 \| good	14.985 \| good	0.281 \| good
2026-04-22T17:00:00.000Z	45 \| good	6.371 \| good	49.194 \| good	47.313 \| good	0.534 \| good	10.177 \| good	0.233 \| good
2026-04-22T18:00:00.000Z	49 \| good	5.097 \| good	40.799 \| good	52.804 \| good	0.414 \| good	7.989 \| good	0.215 \| good
2026-04-22T19:00:00.000Z	54 \| moderate	4.162 \| good	34.293 \| good	55.967 \| fine	0.464 \| good	6.506 \| good	0.15 \| good
2026-04-22T20:00:00.000Z	51 \| moderate	3.373 \| good	18.649 \| good	55.281 \| fine	0.386 \| good	6.844 \| good	0.19 \| good
2026-04-22T21:00:00.000Z	71 \| moderate	2.631 \| good	12.24 \| good	61.086 \| fine	0.351 \| good	6.6 \| good	0.212 \| good
2026-04-22T22:00:00.000Z	84 \| moderate	2.965 \| good	33.827 \| good	64.551 \| fine	0.412 \| good	7.928 \| good	0.212 \| good
2026-04-22T23:00:00.000Z	77 \| moderate	2.788 \| good	37.679 \| good	62.585 \| fine	0.298 \| good	5.162 \| good	0.164 \| good
2026-04-23T00:00:00.000Z	67 \| moderate	3.716 \| good	46.978 \| good	60.16 \| fine	0.361 \| good	4.374 \| good	0.164 \| good
2026-04-23T01:00:00.000Z	54 \| moderate	3.857 \| good	26.242 \| good	56.393 \| fine	0.23 \| good	6.606 \| good	0.147 \| good
2026-04-23T02:00:00.000Z	48 \| good	2.469 \| good	14.116 \| good	52.464 \| good	0.327 \| good	7.028 \| good	0.147 \| good
2026-04-23T03:00:00.000Z	50 \| good	2.713 \| good	16.646 \| good	53.676 \| good	0.462 \| good	7.822 \| good	0.164 \| good
2026-04-23T04:00:00.000Z	48 \| good	2.964 \| good	16.215 \| good	51.692 \| good	0.266 \| good	8.074 \| good	0.192 \| good
2026-04-23T05:00:00.000Z	44 \| good	5.351 \| good	48.294 \| good	46.662 \| good	0.3 \| good	7.565 \| good	0.174 \| good
2026-04-23T06:00:00.000Z	47 \| good	3.67 \| good	28.757 \| good	51.475 \| good	0.283 \| good	7.821 \| good	0.147 \| good
2026-04-23T07:00:00.000Z	49 \| good	6.973 \| good	24.693 \| good	53.27 \| good	0.499 \| good	5.109 \| good	0.123 \| good
2026-04-23T08:00:00.000Z	47 \| good	4.745 \| good	44.309 \| good	51.115 \| good	0.495 \| good	6.411 \| good	0.1 \| good
2026-04-23T09:00:00.000Z	46 \| good	4.111 \| good	37.197 \| good	49.901 \| good	0.292 \| good	4.928 \| good	0.1 \| good
2026-04-23T10:00:00.000Z	44 \| good	3.728 \| good	28.893 \| good	46.924 \| good	0.379 \| good	6.273 \| good	0.1 \| good
2026-04-23T11:00:00.000Z	40 \| good	4.36 \| good	36.941 \| good	42.511 \| good	0.447 \| good	10.701 \| good	0.173 \| good
2026-04-23T12:00:00.000Z	44 \| good	3.986 \| good	26.102 \| good	46.777 \| good	0.501 \| good	20.592 \| good	0.201 \| good
2026-04-23T13:00:00.000Z	50 \| good	3.559 \| good	28.79 \| good	54.107 \| good	0.451 \| good	30.659 \| good	0.248 \| good
2026-04-23T14:00:00.000Z	61 \| moderate	3.808 \| good	17.142 \| good	57.843 \| fine	0.489 \| good	22.172 \| good	0.197 \| good
2026-04-23T15:00:00.000Z	71 \| moderate	3.778 \| good	22.228 \| good	60.567 \| fine	0.653 \| good	6.273 \| good	0.194 \| good
2026-04-23T16:00:00.000Z	61 \| moderate	3.179 \| good	36.234 \| good	57.87 \| fine	0.464 \| good	6.348 \| good	0.147 \| good
2026-04-23T17:00:00.000Z	58 \| moderate	2.409 \| good	27.593 \| good	57.456 \| fine	0.292 \| good	4.583 \| good	0.147 \| good
2026-04-23T18:00:00.000Z	50 \| good	1.542 \| good	9.187 \| good	54.069 \| good	0.467 \| good	4.595 \| good	0.147 \| good
2026-04-23T19:00:00.000Z	47 \| good	1.577 \| good	16.748 \| good	51.293 \| good	0.319 \| good	5.176 \| good	0.187 \| good
2026-04-23T20:00:00.000Z	50 \| good	1.352 \| good	15.712 \| good	53.671 \| good	0.248 \| good	7.595 \| good	0.147 \| good
2026-04-23T21:00:00.000Z	51 \| moderate	1.29 \| good	12.02 \| good	54.597 \| good	0.428 \| good	6.159 \| good	0.17 \| good
2026-04-23T22:00:00.000Z	49 \| good	1.514 \| good	15.493 \| good	52.52 \| good	0.25 \| good	5.093 \| good	0.197 \| good
2026-04-23T23:00:00.000Z	48 \| good	1.649 \| good	13.836 \| good	52.339 \| good	0.45 \| good	4.876 \| good	0.187 \| good
2026-04-24T00:00:00.000Z	45 \| good	1.067 \| good	22.258 \| good	49.137 \| good	0.403 \| good	6.066 \| good	0.17 \| good
2026-04-24T01:00:00.000Z	43 \| good	0.861 \| good	7.684 \| good	45.914 \| good	0.285 \| good	7.344 \| good	0.17 \| good
2026-04-24T02:00:00.000Z	41 \| good	0.931 \| good	5.527 \| good	43.543 \| good	0.62 \| good	7.367 \| good	0.17 \| good
2026-04-24T03:00:00.000Z	39 \| good	1.195 \| good	5 \| good	41.929 \| good	0.297 \| good	5.213 \| good	0.151 \| good
2026-04-24T04:00:00.000Z	43 \| good	1.215 \| good	8.258 \| good	45.545 \| good	0.474 \| good	4.361 \| good	0.181 \| good
2026-04-24T05:00:00.000Z	43 \| good	1.343 \| good	5.614 \| good	46.5 \| good	0.364 \| good	2.938 \| good	0.215 \| good
2026-04-24T05:00:00.000Z	44 \| good	1.343 \| good	5.614 \| good	46.5 \| good	0.364 \| good	2.938 \| good	0.215 \| good
2026-04-24T06:00:00.000Z	44 \| good	7.817 \| good	34.251 \| good	44.145 \| good	0.569 \| good	10.698 \| good	0.181 \| good
2026-04-24T07:00:00.000Z	71 \| moderate	19.643 \| fine	86.922 \| fine	38.347 \| good	0.526 \| good	9.419 \| good	0.173 \| good
2026-04-24T08:00:00.000Z	99 \| moderate	34.794 \| fine	151.278 \| fine	31.152 \| good	0.483 \| good	8.14 \| good	0.165 \| good
2026-04-24T09:00:00.000Z	115 \| sensitive	41.162 \| moderate	182.225 \| moderate	26.714 \| good	0.44 \| good	6.861 \| good	0.157 \| good
2026-04-24T10:00:00.000Z	100 \| moderate	35.443 \| fine	153.751 \| fine	28.162 \| good	0.411 \| good	6.596 \| good	0.154 \| good
2026-04-24T11:00:00.000Z	84 \| moderate	27.145 \| fine	117.632 \| fine	25.797 \| good	0.382 \| good	6.331 \| good	0.15 \| good
2026-04-24T12:00:00.000Z	75 \| moderate	22.114 \| fine	97.091 \| fine	27.616 \| good	0.353 \| good	6.066 \| good	0.147 \| good
2026-04-24T13:00:00.000Z	60 \| moderate	13.829 \| fine	61.928 \| fine	34.253 \| good	0.413 \| good	5.47 \| good	0.15 \| good
2026-04-24T14:00:00.000Z	49 \| good	9.106 \| good	40.659 \| good	41.144 \| good	0.473 \| good	4.875 \| good	0.152 \| good
2026-04-24T15:00:00.000Z	44 \| good	8.328 \| good	36.51 \| good	44.461 \| good	0.532 \| good	4.279 \| good	0.155 \| good
2026-04-24T16:00:00.000Z	44 \| good	8.164 \| good	35.789 \| good	47.631 \| good	0.499 \| good	3.386 \| good	0.145 \| good
2026-04-24T17:00:00.000Z	46 \| good	8.214 \| good	35.927 \| good	49.828 \| good	0.465 \| good	2.493 \| good	0.135 \| good
2026-04-24T18:00:00.000Z	49 \| good	9.262 \| good	41.325 \| good	50.872 \| good	0.432 \| good	1.6 \| good	0.124 \| good
2026-04-24T19:00:00.000Z	56 \| moderate	11.929 \| good	53.218 \| good	50.395 \| good	0.37 \| good	1.305 \| good	0.121 \| good
2026-04-24T20:00:00.000Z	60 \| moderate	14.092 \| fine	62.241 \| fine	51.948 \| good	0.309 \| good	1.009 \| good	0.117 \| good
2026-04-24T21:00:00.000Z	50 \| good	9.27 \| good	41.382 \| good	53.668 \| good	0.248 \| good	0.714 \| good	0.113 \| good
2026-04-24T22:00:00.000Z	51 \| moderate	3.987 \| good	17.635 \| good	54.6 \| good	0.232 \| good	0.758 \| good	0.113 \| good
2026-04-24T23:00:00.000Z	51 \| moderate	3.895 \| good	16.754 \| good	55.392 \| fine	0.215 \| good	0.801 \| good	0.114 \| good
2026-04-25T00:00:00.000Z	69 \| moderate	19.285 \| fine	85.301 \| fine	53.574 \| good	0.199 \| good	0.845 \| good	0.114 \| good
2026-04-25T01:00:00.000Z	134 \| sensitive	48.56 \| moderate	215.046 \| moderate	50.862 \| good	0.283 \| good	3.539 \| good	0.133 \| good
2026-04-25T02:00:00.000Z	181 \| unhealthy	98.704 \| poor	299.231 \| poor	46.13 \| good	0.366 \| good	6.234 \| good	0.151 \| good
2026-04-25T03:00:00.000Z	191 \| unhealthy	113.419 \| poor	314.498 \| poor	46.138 \| good	0.45 \| good	8.928 \| good	0.169 \| good
2026-04-25T04:00:00.000Z	195 \| unhealthy	117.51 \| poor	319.462 \| poor	43.664 \| good	0.422 \| good	9.038 \| good	0.17 \| good
2026-04-25T05:00:00.000Z	154 \| unhealthy	59.99 \| poor	255.596 \| poor	37.265 \| good	0.393 \| good	9.149 \| good	0.17 \| good
2026-04-25T06:00:00.000Z	37 \| good	2.091 \| good	8.485 \| good	40.354 \| good	0.365 \| good	9.259 \| good	0.171 \| good
2026-04-25T07:00:00.000Z	35 \| good	2.029 \| good	8.135 \| good	37.614 \| good	0.311 \| good	6.869 \| good	0.159 \| good
2026-04-25T08:00:00.000Z	37 \| good	3.099 \| good	13.637 \| good	40.212 \| good	0.256 \| good	4.478 \| good	0.147 \| good
2026-04-25T09:00:00.000Z	39 \| good	2.564 \| good	10.121 \| good	42.151 \| good	0.202 \| good	2.088 \| good	0.135 \| good
2026-04-25T10:00:00.000Z	39 \| good	1.801 \| good	7.802 \| good	42.367 \| good	0.215 \| good	2.152 \| good	0.135 \| good
2026-04-25T11:00:00.000Z	36 \| good	2.214 \| good	9.097 \| good	39.43 \| good	0.228 \| good	2.217 \| good	0.136 \| good
2026-04-25T12:00:00.000Z	36 \| good	2.845 \| good	12.047 \| good	38.958 \| good	0.241 \| good	2.281 \| good	0.136 \| good
2026-04-25T13:00:00.000Z	36 \| good	3.514 \| good	15.289 \| good	39.364 \| good	0.262 \| good	2.257 \| good	0.137 \| good
2026-04-25T14:00:00.000Z	37 \| good	4.073 \| good	17.991 \| good	39.581 \| good	0.284 \| good	2.233 \| good	0.139 \| good
2026-04-25T15:00:00.000Z	37 \| good	3.648 \| good	16.125 \| good	40.366 \| good	0.305 \| good	2.209 \| good	0.14 \| good
2026-04-25T16:00:00.000Z	39 \| good	3.268 \| good	14.089 \| good	41.61 \| good	0.329 \| good	2.016 \| good	0.139 \| good
2026-04-25T17:00:00.000Z	42 \| good	3.118 \| good	12.745 \| good	45.022 \| good	0.353 \| good	1.823 \| good	0.138 \| good
2026-04-25T18:00:00.000Z	44 \| good	3.711 \| good	16.115 \| good	47.934 \| good	0.377 \| good	1.63 \| good	0.137 \| good
2026-04-25T19:00:00.000Z	46 \| good	4.034 \| good	17.954 \| good	50.362 \| good	0.351 \| good	1.487 \| good	0.134 \| good
2026-04-25T20:00:00.000Z	48 \| good	4.433 \| good	19.295 \| good	52.074 \| good	0.325 \| good	1.344 \| good	0.131 \| good
2026-04-25T21:00:00.000Z	49 \| good	4.498 \| good	19.575 \| good	52.525 \| good	0.299 \| good	1.2 \| good	0.128 \| good
2026-04-25T22:00:00.000Z	48 \| good	2.193 \| good	8.923 \| good	52.025 \| good	0.296 \| good	1.305 \| good	0.129 \| good
2026-04-25T23:00:00.000Z	47 \| good	0.695 \| good	2.79 \| good	51.118 \| good	0.293 \| good	1.409 \| good	0.129 \| good
2026-04-26T00:00:00.000Z	45 \| good	5.48 \| good	23.248 \| good	49.32 \| good	0.289 \| good	1.514 \| good	0.13 \| good
2026-04-26T01:00:00.000Z	44 \| good	3.724 \| good	16.214 \| good	48.204 \| good	0.361 \| good	3.013 \| good	0.14 \| good
2026-04-26T02:00:00.000Z	36 \| good	4.202 \| good	18.172 \| good	38.824 \| good	0.433 \| good	4.511 \| good	0.151 \| good
2026-04-26T03:00:00.000Z	36 \| good	4.484 \| good	19.219 \| good	38.863 \| good	0.505 \| good	6.01 \| good	0.162 \| good
2026-04-26T04:00:00.000Z	37 \| good	3.173 \| good	13.829 \| good	40.233 \| good	0.549 \| good	6.599 \| good	0.166 \| good
2026-04-26T05:00:00.000Z	37 \| good	2.433 \| good	9.912 \| good	40.21 \| good	0.593 \| good	7.187 \| good	0.171 \| good

Live air quality index in Frederick, Colorado today

Major air pollutants in Frederick, Colorado

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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Frederick, Colorado air quality map: Stay updated on AQI near you

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 PM_2.5 level in Frederick, Colorado at the moment?

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What is the nitrogen dioxide (NO₂) level in Frederick, Colorado at the moment?