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

The PM10 concentration in Frederick, Colorado is 23.025 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 1.019 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 20.961 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 14.144 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 5.042 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)

5.04 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

23.02 μg/m³

155

255

425

605+

Ozone (O₃)

20.96 ppb

201

201+

Sulfur Dioxide (SO₂)

1.02 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

14.14 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.29 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

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
2026-10-20T22:00:00.000Z	43 \| good	5.417 \| good	27.716 \| good	46.495 \| good	0.964 \| good	7.323 \| good	0.19 \| good
2026-10-20T23:00:00.000Z	43 \| good	4.394 \| good	20.035 \| good	45.962 \| good	0.852 \| good	10.162 \| good	0.198 \| good
2026-10-21T00:00:00.000Z	37 \| good	3.936 \| good	17.895 \| good	39.886 \| good	0.781 \| good	11.025 \| good	0.184 \| good
2026-10-21T01:00:00.000Z	31 \| good	3.722 \| good	16.981 \| good	33.396 \| good	0.673 \| good	29.275 \| good	0.431 \| good
2026-10-21T02:00:00.000Z	41 \| good	4.562 \| good	20.004 \| good	31.252 \| good	0.89 \| good	43.202 \| good	0.584 \| good
2026-10-21T03:00:00.000Z	49 \| good	9.455 \| good	42.169 \| good	13.134 \| good	0.375 \| good	18.393 \| good	0.214 \| good
2026-10-21T04:00:00.000Z	38 \| good	7.041 \| good	31.239 \| good	15.371 \| good	0.917 \| good	33.351 \| good	0.473 \| good
2026-10-21T05:00:00.000Z	33 \| good	6.175 \| good	34.663 \| good	14.989 \| good	0.743 \| good	33.952 \| good	0.38 \| good
2026-10-21T06:00:00.000Z	33 \| good	5.91 \| good	23.532 \| good	20.396 \| good	0.933 \| good	31.257 \| good	0.426 \| good
2026-10-21T07:00:00.000Z	33 \| good	6.294 \| good	18.707 \| good	18.873 \| good	1.092 \| good	29.958 \| good	0.312 \| good
2026-10-21T08:00:00.000Z	33 \| good	5.724 \| good	14.713 \| good	16.668 \| good	0.899 \| good	28.429 \| good	0.281 \| good
2026-10-21T09:00:00.000Z	33 \| good	6.264 \| good	20.789 \| good	16.699 \| good	0.841 \| good	24.577 \| good	0.244 \| good
2026-10-21T10:00:00.000Z	33 \| good	5.58 \| good	20.879 \| good	6.297 \| good	0.767 \| good	22.426 \| good	0.251 \| good
2026-10-21T11:00:00.000Z	27 \| good	4.558 \| good	18.987 \| good	9.336 \| good	0.744 \| good	24.612 \| good	0.355 \| good
2026-10-21T12:00:00.000Z	38 \| good	6.851 \| good	29.481 \| good	16.716 \| good	0.764 \| good	24.852 \| good	0.404 \| good
2026-10-21T13:00:00.000Z	38 \| good	7.338 \| good	32.312 \| good	14.328 \| good	1.071 \| good	27.111 \| good	0.478 \| good
2026-10-21T14:00:00.000Z	44 \| good	7.848 \| good	34.599 \| good	12.685 \| good	1.611 \| good	30.578 \| good	0.478 \| good
2026-10-21T15:00:00.000Z	51 \| moderate	8.273 \| good	56.096 \| fine	13.582 \| good	1.643 \| good	30.139 \| good	0.45 \| good
2026-10-21T16:00:00.000Z	58 \| moderate	10.551 \| good	68.955 \| fine	22.196 \| good	1.485 \| good	27.085 \| good	0.358 \| good
2026-10-21T17:00:00.000Z	49 \| good	9.32 \| good	36.302 \| good	34.105 \| good	1.133 \| good	19.434 \| good	0.27 \| good
2026-10-21T18:00:00.000Z	44 \| good	8.105 \| good	38.962 \| good	33.587 \| good	1.303 \| good	15.261 \| good	0.27 \| good
2026-10-21T19:00:00.000Z	41 \| good	6.182 \| good	24.753 \| good	43.566 \| good	0.76 \| good	7.578 \| good	0.171 \| good
2026-10-21T20:00:00.000Z	41 \| good	5.567 \| good	28.6 \| good	44.169 \| good	0.62 \| good	6.468 \| good	0.153 \| good
2026-10-21T21:00:00.000Z	45 \| good	3.467 \| good	15.165 \| good	48.603 \| good	0.465 \| good	5.284 \| good	0.125 \| good
2026-10-21T22:00:00.000Z	47 \| good	4.356 \| good	19.877 \| good	51.478 \| good	0.419 \| good	3.13 \| good	0.167 \| good
2026-10-21T23:00:00.000Z	45 \| good	3.438 \| good	26.996 \| good	48.615 \| good	0.35 \| good	4.573 \| good	0.189 \| good
2026-10-22T00:00:00.000Z	36 \| good	4.154 \| good	17.539 \| good	39.209 \| good	0.848 \| good	12.102 \| good	0.258 \| good
2026-10-22T01:00:00.000Z	31 \| good	2.394 \| good	16.922 \| good	33.402 \| good	0.659 \| good	16.559 \| good	0.341 \| good
2026-10-22T02:00:00.000Z	39 \| good	2.225 \| good	9.406 \| good	42.48 \| good	0.285 \| good	14.25 \| good	0.347 \| good
2026-10-22T03:00:00.000Z	38 \| good	6.826 \| good	30.375 \| good	20.741 \| good	0.445 \| good	18.031 \| good	0.225 \| good
2026-10-22T04:00:00.000Z	34 \| good	3.828 \| good	36.915 \| good	26.794 \| good	0.9 \| good	7.997 \| good	0.332 \| good
2026-10-22T05:00:00.000Z	44 \| good	3.666 \| good	46.839 \| good	21.935 \| good	0.809 \| good	7.069 \| good	0.276 \| good
2026-10-22T06:00:00.000Z	23 \| good	3.246 \| good	16.103 \| good	25.362 \| good	0.541 \| good	4.92 \| good	0.184 \| good
2026-10-22T07:00:00.000Z	23 \| good	3.417 \| good	12.035 \| good	24.832 \| good	0.702 \| good	5.635 \| good	0.144 \| good
2026-10-22T08:00:00.000Z	19 \| good	2.97 \| good	10.847 \| good	19.794 \| good	0.615 \| good	5.565 \| good	0.146 \| good
2026-10-22T09:00:00.000Z	19 \| good	3.366 \| good	12.747 \| good	20.02 \| good	0.999 \| good	6.481 \| good	0.122 \| good
2026-10-22T10:00:00.000Z	22 \| good	3.922 \| good	12.353 \| good	16.712 \| good	0.551 \| good	8.3 \| good	0.153 \| good
2026-10-22T11:00:00.000Z	22 \| good	4.475 \| good	18.652 \| good	15.037 \| good	0.422 \| good	8.183 \| good	0.161 \| good
2026-10-22T12:00:00.000Z	22 \| good	3.72 \| good	16.073 \| good	18.881 \| good	0.516 \| good	7.114 \| good	0.161 \| good
2026-10-22T13:00:00.000Z	22 \| good	4.07 \| good	15.498 \| good	18.36 \| good	0.534 \| good	10.042 \| good	0.316 \| good
2026-10-22T14:00:00.000Z	27 \| good	4.916 \| good	21.365 \| good	17.627 \| good	0.662 \| good	20.01 \| good	0.338 \| good
2026-10-22T15:00:00.000Z	33 \| good	5.869 \| good	25.451 \| good	19.409 \| good	0.895 \| good	24.988 \| good	0.527 \| good
2026-10-22T16:00:00.000Z	44 \| good	7.826 \| good	38.607 \| good	24.26 \| good	1.079 \| good	29.75 \| good	0.432 \| good
2026-10-22T17:00:00.000Z	30 \| good	3.49 \| good	14.548 \| good	17.823 \| good	1.311 \| good	31.8 \| good	0.382 \| good
2026-10-22T18:00:00.000Z	33 \| good	6.457 \| good	29.36 \| good	26.016 \| good	1.11 \| good	25.168 \| good	0.309 \| good
2026-10-22T19:00:00.000Z	33 \| good	6.442 \| good	32.47 \| good	20.758 \| good	0.86 \| good	20.458 \| good	0.292 \| good
2026-10-22T20:00:00.000Z	27 \| good	5.042 \| good	23.025 \| good	20.961 \| good	1.019 \| good	14.144 \| good	0.29 \| good
2026-10-22T21:00:00.000Z	27 \| good	5.042 \| good	23.025 \| good	20.961 \| good	1.019 \| good	14.144 \| good	0.29 \| good
2026-10-22T22:00:00.000Z	37 \| good	3.022 \| good	13.213 \| good	40.256 \| good	0.437 \| good	4.273 \| good	0.106 \| good
2026-10-22T23:00:00.000Z	34 \| good	3.449 \| good	14.867 \| good	36.905 \| good	0.436 \| good	4.401 \| good	0.108 \| good
2026-10-23T00:00:00.000Z	24 \| good	4.205 \| good	18.259 \| good	25.93 \| good	0.47 \| good	9.852 \| good	0.147 \| good
2026-10-23T01:00:00.000Z	38 \| good	6.707 \| good	29.993 \| good	12.495 \| good	0.563 \| good	16.464 \| good	0.205 \| good
2026-10-23T02:00:00.000Z	27 \| good	5.299 \| good	23.326 \| good	12.399 \| good	0.597 \| good	18.337 \| good	0.242 \| good
2026-10-23T03:00:00.000Z	22 \| good	4.162 \| good	18.168 \| good	18.523 \| good	0.55 \| good	19.596 \| good	0.245 \| good
2026-10-23T04:00:00.000Z	21 \| good	2.897 \| good	12.511 \| good	23.004 \| good	0.502 \| good	19.844 \| good	0.244 \| good
2026-10-23T05:00:00.000Z	25 \| good	1.93 \| good	8.096 \| good	27.136 \| good	0.459 \| good	18.587 \| good	0.239 \| good
2026-10-23T06:00:00.000Z	24 \| good	1.421 \| good	5.434 \| good	25.795 \| good	0.398 \| good	17.255 \| good	0.221 \| good
2026-10-23T07:00:00.000Z	17 \| good	3.084 \| good	12.744 \| good	18.264 \| good	0.34 \| good	14.947 \| good	0.196 \| good
2026-10-23T08:00:00.000Z	22 \| good	4.203 \| good	18.214 \| good	12.9 \| good	0.305 \| good	12.348 \| good	0.172 \| good
2026-10-23T09:00:00.000Z	22 \| good	3.878 \| good	16.919 \| good	16.354 \| good	0.276 \| good	8.884 \| good	0.148 \| good
2026-10-23T10:00:00.000Z	19 \| good	2.969 \| good	12.348 \| good	20.11 \| good	0.25 \| good	5.957 \| good	0.131 \| good
2026-10-23T11:00:00.000Z	19 \| good	2.598 \| good	11.012 \| good	20.464 \| good	0.23 \| good	4.262 \| good	0.121 \| good
2026-10-23T12:00:00.000Z	18 \| good	2.393 \| good	9.927 \| good	18.524 \| good	0.216 \| good	3.53 \| good	0.118 \| good
2026-10-23T13:00:00.000Z	22 \| good	3.957 \| good	17.244 \| good	13.349 \| good	0.21 \| good	3.861 \| good	0.121 \| good
2026-10-23T14:00:00.000Z	33 \| good	5.975 \| good	26.821 \| good	13.469 \| good	0.219 \| good	4.934 \| good	0.132 \| good
2026-10-23T15:00:00.000Z	33 \| good	6.29 \| good	27.969 \| good	20.985 \| good	0.224 \| good	4.432 \| good	0.141 \| good
2026-10-23T16:00:00.000Z	27 \| good	4.721 \| good	20.354 \| good	26.813 \| good	0.227 \| good	3.606 \| good	0.132 \| good
2026-10-23T17:00:00.000Z	31 \| good	2.559 \| good	10.279 \| good	34.094 \| good	0.228 \| good	2.206 \| good	0.12 \| good
2026-10-23T18:00:00.000Z	39 \| good	1.431 \| good	5.855 \| good	41.782 \| good	0.197 \| good	1.186 \| good	0.11 \| good
2026-10-23T19:00:00.000Z	43 \| good	2.409 \| good	9.779 \| good	46.405 \| good	0.168 \| good	0.776 \| good	0.105 \| good
2026-10-23T20:00:00.000Z	46 \| good	2.991 \| good	12.195 \| good	49.943 \| good	0.155 \| good	0.676 \| good	0.103 \| good
2026-10-23T21:00:00.000Z	48 \| good	2.246 \| good	8.987 \| good	52.491 \| good	0.146 \| good	0.67 \| good	0.101 \| good
2026-10-23T22:00:00.000Z	48 \| good	2.214 \| good	8.97 \| good	52.265 \| good	0.14 \| good	0.759 \| good	0.1 \| good
2026-10-23T23:00:00.000Z	41 \| good	3.455 \| good	14.912 \| good	43.772 \| good	0.141 \| good	1.121 \| good	0.102 \| good
2026-10-24T00:00:00.000Z	37 \| good	2.963 \| good	12.342 \| good	39.612 \| good	0.184 \| good	5.722 \| good	0.137 \| good
2026-10-24T01:00:00.000Z	37 \| good	2.247 \| good	9.182 \| good	39.912 \| good	0.241 \| good	12.505 \| good	0.175 \| good
2026-10-24T02:00:00.000Z	40 \| good	0.642 \| good	2.238 \| good	43.241 \| good	0.251 \| good	14.119 \| good	0.185 \| good
2026-10-24T03:00:00.000Z	34 \| good	0.887 \| good	3.757 \| good	36.871 \| good	0.242 \| good	13.223 \| good	0.182 \| good
2026-10-24T04:00:00.000Z	44 \| good	8.2 \| good	36.041 \| good	33.423 \| good	0.243 \| good	13.104 \| good	0.184 \| good
2026-10-24T05:00:00.000Z	69 \| moderate	18.854 \| fine	83.383 \| fine	27.913 \| good	0.251 \| good	13.871 \| good	0.191 \| good
2026-10-24T06:00:00.000Z	66 \| moderate	16.941 \| fine	75.569 \| fine	24.448 \| good	0.252 \| good	13.979 \| good	0.198 \| good
2026-10-24T07:00:00.000Z	56 \| moderate	12.288 \| fine	54.875 \| good	21.286 \| good	0.246 \| good	12.943 \| good	0.195 \| good
2026-10-24T08:00:00.000Z	58 \| moderate	13.108 \| fine	59.049 \| fine	18.715 \| good	0.23 \| good	11.999 \| good	0.179 \| good
2026-10-24T09:00:00.000Z	64 \| moderate	15.931 \| fine	70.399 \| fine	16.627 \| good	0.212 \| good	11.635 \| good	0.167 \| good
2026-10-24T10:00:00.000Z	73 \| moderate	20.977 \| fine	91.884 \| fine	15.667 \| good	0.21 \| good	10.306 \| good	0.158 \| good
2026-10-24T11:00:00.000Z	84 \| moderate	26.778 \| fine	116.194 \| fine	15.747 \| good	0.218 \| good	9.117 \| good	0.154 \| good
2026-10-24T12:00:00.000Z	90 \| moderate	29.503 \| fine	128.351 \| fine	13.839 \| good	0.224 \| good	7.71 \| good	0.149 \| good
2026-10-24T13:00:00.000Z	92 \| moderate	31.313 \| fine	135.658 \| fine	10.642 \| good	0.23 \| good	6.346 \| good	0.142 \| good
2026-10-24T14:00:00.000Z	77 \| moderate	23.25 \| fine	101.293 \| fine	19.092 \| good	0.275 \| good	5.502 \| good	0.143 \| good
2026-10-24T15:00:00.000Z	56 \| moderate	11.73 \| good	52.432 \| good	28.481 \| good	0.369 \| good	2.713 \| good	0.137 \| good
2026-10-24T16:00:00.000Z	33 \| good	5.823 \| good	25.435 \| good	33.175 \| good	0.475 \| good	1.995 \| good	0.139 \| good
2026-10-24T17:00:00.000Z	33 \| good	3.75 \| good	16.245 \| good	36.11 \| good	0.547 \| good	1.716 \| good	0.141 \| good
2026-10-24T18:00:00.000Z	37 \| good	2.118 \| good	8.434 \| good	40.499 \| good	0.583 \| good	1.458 \| good	0.141 \| good
2026-10-24T19:00:00.000Z	40 \| good	2.999 \| good	12.347 \| good	43.189 \| good	0.591 \| good	1.328 \| good	0.141 \| good
2026-10-24T20:00:00.000Z	41 \| good	3.369 \| good	14.765 \| good	43.918 \| good	0.58 \| good	1.337 \| good	0.14 \| good
2026-10-24T21:00:00.000Z	41 \| good	2.771 \| good	11.216 \| good	44.353 \| good	0.554 \| good	1.378 \| good	0.139 \| good

Frederick

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

0.31ppm

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 10:00:00 on 2026-10-21.

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 09:00:00 on 2026-10-22.

What is the AQI in Frederick, Colorado right now?

As of now, the AQI in Frederick, Colorado is 27, indicating Good conditions.

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

Frederick, Colorado air has the highest levels of PM2.5.

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 5.042 μg/m³.

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

The PM₁₀ concentration in Frederick, Colorado is 23.025 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 0.29 ppm.

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

Currently, Frederick, Colorado has a sulfur dioxide (SO₂) concentration of 1.019 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 20.961 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 14.144 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-10-20T22:00:00.000Z	43 \| good	5.417 \| good	27.716 \| good	46.495 \| good	0.964 \| good	7.323 \| good	0.19 \| good
2026-10-20T23:00:00.000Z	43 \| good	4.394 \| good	20.035 \| good	45.962 \| good	0.852 \| good	10.162 \| good	0.198 \| good
2026-10-21T00:00:00.000Z	37 \| good	3.936 \| good	17.895 \| good	39.886 \| good	0.781 \| good	11.025 \| good	0.184 \| good
2026-10-21T01:00:00.000Z	31 \| good	3.722 \| good	16.981 \| good	33.396 \| good	0.673 \| good	29.275 \| good	0.431 \| good
2026-10-21T02:00:00.000Z	41 \| good	4.562 \| good	20.004 \| good	31.252 \| good	0.89 \| good	43.202 \| good	0.584 \| good
2026-10-21T03:00:00.000Z	49 \| good	9.455 \| good	42.169 \| good	13.134 \| good	0.375 \| good	18.393 \| good	0.214 \| good
2026-10-21T04:00:00.000Z	38 \| good	7.041 \| good	31.239 \| good	15.371 \| good	0.917 \| good	33.351 \| good	0.473 \| good
2026-10-21T05:00:00.000Z	33 \| good	6.175 \| good	34.663 \| good	14.989 \| good	0.743 \| good	33.952 \| good	0.38 \| good
2026-10-21T06:00:00.000Z	33 \| good	5.91 \| good	23.532 \| good	20.396 \| good	0.933 \| good	31.257 \| good	0.426 \| good
2026-10-21T07:00:00.000Z	33 \| good	6.294 \| good	18.707 \| good	18.873 \| good	1.092 \| good	29.958 \| good	0.312 \| good
2026-10-21T08:00:00.000Z	33 \| good	5.724 \| good	14.713 \| good	16.668 \| good	0.899 \| good	28.429 \| good	0.281 \| good
2026-10-21T09:00:00.000Z	33 \| good	6.264 \| good	20.789 \| good	16.699 \| good	0.841 \| good	24.577 \| good	0.244 \| good
2026-10-21T10:00:00.000Z	33 \| good	5.58 \| good	20.879 \| good	6.297 \| good	0.767 \| good	22.426 \| good	0.251 \| good
2026-10-21T11:00:00.000Z	27 \| good	4.558 \| good	18.987 \| good	9.336 \| good	0.744 \| good	24.612 \| good	0.355 \| good
2026-10-21T12:00:00.000Z	38 \| good	6.851 \| good	29.481 \| good	16.716 \| good	0.764 \| good	24.852 \| good	0.404 \| good
2026-10-21T13:00:00.000Z	38 \| good	7.338 \| good	32.312 \| good	14.328 \| good	1.071 \| good	27.111 \| good	0.478 \| good
2026-10-21T14:00:00.000Z	44 \| good	7.848 \| good	34.599 \| good	12.685 \| good	1.611 \| good	30.578 \| good	0.478 \| good
2026-10-21T15:00:00.000Z	51 \| moderate	8.273 \| good	56.096 \| fine	13.582 \| good	1.643 \| good	30.139 \| good	0.45 \| good
2026-10-21T16:00:00.000Z	58 \| moderate	10.551 \| good	68.955 \| fine	22.196 \| good	1.485 \| good	27.085 \| good	0.358 \| good
2026-10-21T17:00:00.000Z	49 \| good	9.32 \| good	36.302 \| good	34.105 \| good	1.133 \| good	19.434 \| good	0.27 \| good
2026-10-21T18:00:00.000Z	44 \| good	8.105 \| good	38.962 \| good	33.587 \| good	1.303 \| good	15.261 \| good	0.27 \| good
2026-10-21T19:00:00.000Z	41 \| good	6.182 \| good	24.753 \| good	43.566 \| good	0.76 \| good	7.578 \| good	0.171 \| good
2026-10-21T20:00:00.000Z	41 \| good	5.567 \| good	28.6 \| good	44.169 \| good	0.62 \| good	6.468 \| good	0.153 \| good
2026-10-21T21:00:00.000Z	45 \| good	3.467 \| good	15.165 \| good	48.603 \| good	0.465 \| good	5.284 \| good	0.125 \| good
2026-10-21T22:00:00.000Z	47 \| good	4.356 \| good	19.877 \| good	51.478 \| good	0.419 \| good	3.13 \| good	0.167 \| good
2026-10-21T23:00:00.000Z	45 \| good	3.438 \| good	26.996 \| good	48.615 \| good	0.35 \| good	4.573 \| good	0.189 \| good
2026-10-22T00:00:00.000Z	36 \| good	4.154 \| good	17.539 \| good	39.209 \| good	0.848 \| good	12.102 \| good	0.258 \| good
2026-10-22T01:00:00.000Z	31 \| good	2.394 \| good	16.922 \| good	33.402 \| good	0.659 \| good	16.559 \| good	0.341 \| good
2026-10-22T02:00:00.000Z	39 \| good	2.225 \| good	9.406 \| good	42.48 \| good	0.285 \| good	14.25 \| good	0.347 \| good
2026-10-22T03:00:00.000Z	38 \| good	6.826 \| good	30.375 \| good	20.741 \| good	0.445 \| good	18.031 \| good	0.225 \| good
2026-10-22T04:00:00.000Z	34 \| good	3.828 \| good	36.915 \| good	26.794 \| good	0.9 \| good	7.997 \| good	0.332 \| good
2026-10-22T05:00:00.000Z	44 \| good	3.666 \| good	46.839 \| good	21.935 \| good	0.809 \| good	7.069 \| good	0.276 \| good
2026-10-22T06:00:00.000Z	23 \| good	3.246 \| good	16.103 \| good	25.362 \| good	0.541 \| good	4.92 \| good	0.184 \| good
2026-10-22T07:00:00.000Z	23 \| good	3.417 \| good	12.035 \| good	24.832 \| good	0.702 \| good	5.635 \| good	0.144 \| good
2026-10-22T08:00:00.000Z	19 \| good	2.97 \| good	10.847 \| good	19.794 \| good	0.615 \| good	5.565 \| good	0.146 \| good
2026-10-22T09:00:00.000Z	19 \| good	3.366 \| good	12.747 \| good	20.02 \| good	0.999 \| good	6.481 \| good	0.122 \| good
2026-10-22T10:00:00.000Z	22 \| good	3.922 \| good	12.353 \| good	16.712 \| good	0.551 \| good	8.3 \| good	0.153 \| good
2026-10-22T11:00:00.000Z	22 \| good	4.475 \| good	18.652 \| good	15.037 \| good	0.422 \| good	8.183 \| good	0.161 \| good
2026-10-22T12:00:00.000Z	22 \| good	3.72 \| good	16.073 \| good	18.881 \| good	0.516 \| good	7.114 \| good	0.161 \| good
2026-10-22T13:00:00.000Z	22 \| good	4.07 \| good	15.498 \| good	18.36 \| good	0.534 \| good	10.042 \| good	0.316 \| good
2026-10-22T14:00:00.000Z	27 \| good	4.916 \| good	21.365 \| good	17.627 \| good	0.662 \| good	20.01 \| good	0.338 \| good
2026-10-22T15:00:00.000Z	33 \| good	5.869 \| good	25.451 \| good	19.409 \| good	0.895 \| good	24.988 \| good	0.527 \| good
2026-10-22T16:00:00.000Z	44 \| good	7.826 \| good	38.607 \| good	24.26 \| good	1.079 \| good	29.75 \| good	0.432 \| good
2026-10-22T17:00:00.000Z	30 \| good	3.49 \| good	14.548 \| good	17.823 \| good	1.311 \| good	31.8 \| good	0.382 \| good
2026-10-22T18:00:00.000Z	33 \| good	6.457 \| good	29.36 \| good	26.016 \| good	1.11 \| good	25.168 \| good	0.309 \| good
2026-10-22T19:00:00.000Z	33 \| good	6.442 \| good	32.47 \| good	20.758 \| good	0.86 \| good	20.458 \| good	0.292 \| good
2026-10-22T20:00:00.000Z	27 \| good	5.042 \| good	23.025 \| good	20.961 \| good	1.019 \| good	14.144 \| good	0.29 \| good
2026-10-22T21:00:00.000Z	27 \| good	5.042 \| good	23.025 \| good	20.961 \| good	1.019 \| good	14.144 \| good	0.29 \| good
2026-10-22T22:00:00.000Z	37 \| good	3.022 \| good	13.213 \| good	40.256 \| good	0.437 \| good	4.273 \| good	0.106 \| good
2026-10-22T23:00:00.000Z	34 \| good	3.449 \| good	14.867 \| good	36.905 \| good	0.436 \| good	4.401 \| good	0.108 \| good
2026-10-23T00:00:00.000Z	24 \| good	4.205 \| good	18.259 \| good	25.93 \| good	0.47 \| good	9.852 \| good	0.147 \| good
2026-10-23T01:00:00.000Z	38 \| good	6.707 \| good	29.993 \| good	12.495 \| good	0.563 \| good	16.464 \| good	0.205 \| good
2026-10-23T02:00:00.000Z	27 \| good	5.299 \| good	23.326 \| good	12.399 \| good	0.597 \| good	18.337 \| good	0.242 \| good
2026-10-23T03:00:00.000Z	22 \| good	4.162 \| good	18.168 \| good	18.523 \| good	0.55 \| good	19.596 \| good	0.245 \| good
2026-10-23T04:00:00.000Z	21 \| good	2.897 \| good	12.511 \| good	23.004 \| good	0.502 \| good	19.844 \| good	0.244 \| good
2026-10-23T05:00:00.000Z	25 \| good	1.93 \| good	8.096 \| good	27.136 \| good	0.459 \| good	18.587 \| good	0.239 \| good
2026-10-23T06:00:00.000Z	24 \| good	1.421 \| good	5.434 \| good	25.795 \| good	0.398 \| good	17.255 \| good	0.221 \| good
2026-10-23T07:00:00.000Z	17 \| good	3.084 \| good	12.744 \| good	18.264 \| good	0.34 \| good	14.947 \| good	0.196 \| good
2026-10-23T08:00:00.000Z	22 \| good	4.203 \| good	18.214 \| good	12.9 \| good	0.305 \| good	12.348 \| good	0.172 \| good
2026-10-23T09:00:00.000Z	22 \| good	3.878 \| good	16.919 \| good	16.354 \| good	0.276 \| good	8.884 \| good	0.148 \| good
2026-10-23T10:00:00.000Z	19 \| good	2.969 \| good	12.348 \| good	20.11 \| good	0.25 \| good	5.957 \| good	0.131 \| good
2026-10-23T11:00:00.000Z	19 \| good	2.598 \| good	11.012 \| good	20.464 \| good	0.23 \| good	4.262 \| good	0.121 \| good
2026-10-23T12:00:00.000Z	18 \| good	2.393 \| good	9.927 \| good	18.524 \| good	0.216 \| good	3.53 \| good	0.118 \| good
2026-10-23T13:00:00.000Z	22 \| good	3.957 \| good	17.244 \| good	13.349 \| good	0.21 \| good	3.861 \| good	0.121 \| good
2026-10-23T14:00:00.000Z	33 \| good	5.975 \| good	26.821 \| good	13.469 \| good	0.219 \| good	4.934 \| good	0.132 \| good
2026-10-23T15:00:00.000Z	33 \| good	6.29 \| good	27.969 \| good	20.985 \| good	0.224 \| good	4.432 \| good	0.141 \| good
2026-10-23T16:00:00.000Z	27 \| good	4.721 \| good	20.354 \| good	26.813 \| good	0.227 \| good	3.606 \| good	0.132 \| good
2026-10-23T17:00:00.000Z	31 \| good	2.559 \| good	10.279 \| good	34.094 \| good	0.228 \| good	2.206 \| good	0.12 \| good
2026-10-23T18:00:00.000Z	39 \| good	1.431 \| good	5.855 \| good	41.782 \| good	0.197 \| good	1.186 \| good	0.11 \| good
2026-10-23T19:00:00.000Z	43 \| good	2.409 \| good	9.779 \| good	46.405 \| good	0.168 \| good	0.776 \| good	0.105 \| good
2026-10-23T20:00:00.000Z	46 \| good	2.991 \| good	12.195 \| good	49.943 \| good	0.155 \| good	0.676 \| good	0.103 \| good
2026-10-23T21:00:00.000Z	48 \| good	2.246 \| good	8.987 \| good	52.491 \| good	0.146 \| good	0.67 \| good	0.101 \| good
2026-10-23T22:00:00.000Z	48 \| good	2.214 \| good	8.97 \| good	52.265 \| good	0.14 \| good	0.759 \| good	0.1 \| good
2026-10-23T23:00:00.000Z	41 \| good	3.455 \| good	14.912 \| good	43.772 \| good	0.141 \| good	1.121 \| good	0.102 \| good
2026-10-24T00:00:00.000Z	37 \| good	2.963 \| good	12.342 \| good	39.612 \| good	0.184 \| good	5.722 \| good	0.137 \| good
2026-10-24T01:00:00.000Z	37 \| good	2.247 \| good	9.182 \| good	39.912 \| good	0.241 \| good	12.505 \| good	0.175 \| good
2026-10-24T02:00:00.000Z	40 \| good	0.642 \| good	2.238 \| good	43.241 \| good	0.251 \| good	14.119 \| good	0.185 \| good
2026-10-24T03:00:00.000Z	34 \| good	0.887 \| good	3.757 \| good	36.871 \| good	0.242 \| good	13.223 \| good	0.182 \| good
2026-10-24T04:00:00.000Z	44 \| good	8.2 \| good	36.041 \| good	33.423 \| good	0.243 \| good	13.104 \| good	0.184 \| good
2026-10-24T05:00:00.000Z	69 \| moderate	18.854 \| fine	83.383 \| fine	27.913 \| good	0.251 \| good	13.871 \| good	0.191 \| good
2026-10-24T06:00:00.000Z	66 \| moderate	16.941 \| fine	75.569 \| fine	24.448 \| good	0.252 \| good	13.979 \| good	0.198 \| good
2026-10-24T07:00:00.000Z	56 \| moderate	12.288 \| fine	54.875 \| good	21.286 \| good	0.246 \| good	12.943 \| good	0.195 \| good
2026-10-24T08:00:00.000Z	58 \| moderate	13.108 \| fine	59.049 \| fine	18.715 \| good	0.23 \| good	11.999 \| good	0.179 \| good
2026-10-24T09:00:00.000Z	64 \| moderate	15.931 \| fine	70.399 \| fine	16.627 \| good	0.212 \| good	11.635 \| good	0.167 \| good
2026-10-24T10:00:00.000Z	73 \| moderate	20.977 \| fine	91.884 \| fine	15.667 \| good	0.21 \| good	10.306 \| good	0.158 \| good
2026-10-24T11:00:00.000Z	84 \| moderate	26.778 \| fine	116.194 \| fine	15.747 \| good	0.218 \| good	9.117 \| good	0.154 \| good
2026-10-24T12:00:00.000Z	90 \| moderate	29.503 \| fine	128.351 \| fine	13.839 \| good	0.224 \| good	7.71 \| good	0.149 \| good
2026-10-24T13:00:00.000Z	92 \| moderate	31.313 \| fine	135.658 \| fine	10.642 \| good	0.23 \| good	6.346 \| good	0.142 \| good
2026-10-24T14:00:00.000Z	77 \| moderate	23.25 \| fine	101.293 \| fine	19.092 \| good	0.275 \| good	5.502 \| good	0.143 \| good
2026-10-24T15:00:00.000Z	56 \| moderate	11.73 \| good	52.432 \| good	28.481 \| good	0.369 \| good	2.713 \| good	0.137 \| good
2026-10-24T16:00:00.000Z	33 \| good	5.823 \| good	25.435 \| good	33.175 \| good	0.475 \| good	1.995 \| good	0.139 \| good
2026-10-24T17:00:00.000Z	33 \| good	3.75 \| good	16.245 \| good	36.11 \| good	0.547 \| good	1.716 \| good	0.141 \| good
2026-10-24T18:00:00.000Z	37 \| good	2.118 \| good	8.434 \| good	40.499 \| good	0.583 \| good	1.458 \| good	0.141 \| good
2026-10-24T19:00:00.000Z	40 \| good	2.999 \| good	12.347 \| good	43.189 \| good	0.591 \| good	1.328 \| good	0.141 \| good
2026-10-24T20:00:00.000Z	41 \| good	3.369 \| good	14.765 \| good	43.918 \| good	0.58 \| good	1.337 \| good	0.14 \| good
2026-10-24T21:00:00.000Z	41 \| good	2.771 \| good	11.216 \| good	44.353 \| good	0.554 \| good	1.378 \| good	0.139 \| 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

Firestone, Colorado

Erie, Colorado

Longmont, Colorado

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Gunbarrel, Colorado

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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?