What is the current level of PM10 in Frederick, Maryland?

Frederick, Maryland currently has a PM10 concentration of 4.925 μg/m3.

What is the current level of sulfur dioxide (SO2) in Frederick, Maryland?

The current sulfur dioxide (SO2) concentration in Frederick, Maryland is 0.188 ppb.

What is the current level of ozone (O3) in Frederick, Maryland?

Frederick, Maryland currently has an ozone (O3) concentration of 27.91 ppm.

What is the current level of nitrogen dioxide (NO2) in Frederick, Maryland?

The current level of nitrogen dioxide (NO2) in Frederick, Maryland is 3.371 ppb.

Current air quality index in Frederick, Maryland today

Name: Live air pollution levels in Frederick, Maryland today
Creator: Ambee

Stay updated with real-time air quality in Frederick, Maryland 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, Maryland

Last updated: ... (Local time)

Common air pollutants in Frederick, Maryland

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

4.71 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

17.99 μg/m³

155

255

425

605+

Ozone (O₃)

8.26 ppb

201

201+

Sulfur Dioxide (SO₂)

0.21 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

15.25 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.33 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

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Frederick, Maryland

Scroll To Air Quality Map

Track live Frederick, Maryland air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-10-19T06:00:00.000Z	38 \| good	7.414 \| good	35.191 \| good	15.291 \| good	0.212 \| good	11.804 \| good	0.338 \| good
2025-10-19T07:00:00.000Z	44 \| good	8.408 \| good	44.835 \| good	15.299 \| good	0.199 \| good	12.651 \| good	0.319 \| good
2025-10-19T08:00:00.000Z	49 \| good	9.198 \| good	39.027 \| good	11.513 \| good	0.224 \| good	9.255 \| good	0.34 \| good
2025-10-19T09:00:00.000Z	52 \| moderate	9.927 \| good	43.279 \| good	9.474 \| good	0.178 \| good	8.351 \| good	0.322 \| good
2025-10-19T10:00:00.000Z	52 \| moderate	10.074 \| good	44.809 \| good	6.508 \| good	0.179 \| good	13.067 \| good	0.301 \| good
2025-10-19T11:00:00.000Z	49 \| good	9.473 \| good	32.521 \| good	4.471 \| good	0.228 \| good	12.362 \| good	0.301 \| good
2025-10-19T12:00:00.000Z	44 \| good	8.125 \| good	33.199 \| good	7.482 \| good	0.154 \| good	11.979 \| good	0.301 \| good
2025-10-19T13:00:00.000Z	49 \| good	8.79 \| good	38.799 \| good	7.474 \| good	0.191 \| good	12.202 \| good	0.32 \| good
2025-10-19T14:00:00.000Z	44 \| good	7.648 \| good	31.492 \| good	12.367 \| good	0.21 \| good	8.973 \| good	0.319 \| good
2025-10-19T15:00:00.000Z	54 \| moderate	11.418 \| good	52.925 \| good	19.216 \| good	0.328 \| good	5.009 \| good	0.244 \| good
2025-10-19T16:00:00.000Z	49 \| good	9.256 \| good	32.437 \| good	27.153 \| good	0.383 \| good	4.225 \| good	0.224 \| good
2025-10-19T17:00:00.000Z	49 \| good	9.034 \| good	34.389 \| good	34.04 \| good	0.384 \| good	2.661 \| good	0.224 \| good
2025-10-19T18:00:00.000Z	49 \| good	9.385 \| good	32.383 \| good	37.987 \| good	0.299 \| good	2.533 \| good	0.182 \| good
2025-10-19T19:00:00.000Z	49 \| good	9.027 \| good	36.599 \| good	42.954 \| good	0.307 \| good	2.322 \| good	0.224 \| good
2025-10-19T20:00:00.000Z	44 \| good	7.84 \| good	33.301 \| good	42.997 \| good	0.279 \| good	2.055 \| good	0.202 \| good
2025-10-19T21:00:00.000Z	49 \| good	9.026 \| good	34.181 \| good	45.949 \| good	0.257 \| good	2.048 \| good	0.182 \| good
2025-10-19T22:00:00.000Z	44 \| good	8.393 \| good	30.676 \| good	46.896 \| good	0.27 \| good	2.419 \| good	0.182 \| good
2025-10-19T23:00:00.000Z	40 \| good	5.646 \| good	22.825 \| good	43.009 \| good	0.291 \| good	2.79 \| good	0.182 \| good
2025-10-20T00:00:00.000Z	39 \| good	5.347 \| good	23.065 \| good	41.933 \| good	0.278 \| good	4.322 \| good	0.182 \| good
2025-10-20T01:00:00.000Z	34 \| good	5.176 \| good	20.969 \| good	37.061 \| good	0.215 \| good	3.58 \| good	0.2 \| good
2025-10-20T02:00:00.000Z	36 \| good	4.54 \| good	20.868 \| good	38.958 \| good	0.25 \| good	2.455 \| good	0.2 \| good
2025-10-20T03:00:00.000Z	32 \| good	3.852 \| good	18.038 \| good	35.076 \| good	0.226 \| good	1.51 \| good	0.144 \| good
2025-10-20T04:00:00.000Z	31 \| good	3.581 \| good	10.33 \| good	33.098 \| good	0.19 \| good	1.848 \| good	0.144 \| good
2025-10-20T05:00:00.000Z	32 \| good	2.594 \| good	11.088 \| good	34.948 \| good	0.214 \| good	1.714 \| good	0.144 \| good
2025-10-20T06:00:00.000Z	31 \| good	2.463 \| good	10.471 \| good	32.974 \| good	0.186 \| good	1.713 \| good	0.144 \| good
2025-10-20T07:00:00.000Z	31 \| good	1.975 \| good	6.629 \| good	32.95 \| good	0.203 \| good	1.477 \| good	0.144 \| good
2025-10-20T08:00:00.000Z	27 \| good	1.556 \| good	6.161 \| good	28.939 \| good	0.187 \| good	3.033 \| good	0.144 \| good
2025-10-20T09:00:00.000Z	24 \| good	1.584 \| good	7.323 \| good	26.015 \| good	0.173 \| good	3.325 \| good	0.163 \| good
2025-10-20T10:00:00.000Z	25 \| good	1.716 \| good	5.352 \| good	26.911 \| good	0.21 \| good	2.257 \| good	0.144 \| good
2025-10-20T11:00:00.000Z	22 \| good	1.64 \| good	8.365 \| good	24.039 \| good	0.199 \| good	3.062 \| good	0.142 \| good
2025-10-20T12:00:00.000Z	26 \| good	0.96 \| good	6.097 \| good	27.902 \| good	0.193 \| good	2.816 \| good	0.121 \| good
2025-10-20T13:00:00.000Z	26 \| good	1.109 \| good	4.925 \| good	27.91 \| good	0.188 \| good	3.371 \| good	0.16 \| good
2025-10-20T14:00:00.000Z	25 \| good	1.654 \| good	6.216 \| good	26.973 \| good	0.184 \| good	3.511 \| good	0.179 \| good
2025-10-20T15:00:00.000Z	25 \| good	3.323 \| good	8.51 \| good	27.064 \| good	0.263 \| good	2.583 \| good	0.139 \| good
2025-10-20T16:00:00.000Z	29 \| good	2.789 \| good	13.393 \| good	30.956 \| good	0.236 \| good	2.227 \| good	0.121 \| good
2025-10-20T17:00:00.000Z	27 \| good	3.049 \| good	10.428 \| good	29.086 \| good	0.25 \| good	1.868 \| good	0.141 \| good
2025-10-20T18:00:00.000Z	30 \| good	1.867 \| good	6.781 \| good	31.964 \| good	0.226 \| good	0.997 \| good	0.139 \| good
2025-10-20T19:00:00.000Z	31 \| good	2.405 \| good	6.039 \| good	32.911 \| good	0.194 \| good	1.776 \| good	0.139 \| good
2025-10-20T20:00:00.000Z	31 \| good	2.555 \| good	9.24 \| good	32.957 \| good	0.194 \| good	1.795 \| good	0.139 \| good
2025-10-20T21:00:00.000Z	31 \| good	1.762 \| good	6.853 \| good	32.92 \| good	0.172 \| good	1.626 \| good	0.139 \| good
2025-10-20T22:00:00.000Z	33 \| good	1.557 \| good	10.095 \| good	35.84 \| good	0.209 \| good	3.066 \| good	0.139 \| good
2025-10-20T23:00:00.000Z	30 \| good	1.906 \| good	9.953 \| good	31.966 \| good	0.207 \| good	4.698 \| good	0.139 \| good
2025-10-21T00:00:00.000Z	25 \| good	2.098 \| good	5.477 \| good	27.073 \| good	0.182 \| good	2.777 \| good	0.139 \| good
2025-10-21T01:00:00.000Z	21 \| good	3 \| good	10.671 \| good	23.162 \| good	0.168 \| good	7.544 \| good	0.18 \| good
2025-10-21T02:00:00.000Z	38 \| good	6.708 \| good	15.707 \| good	17.259 \| good	0.157 \| good	9.899 \| good	0.261 \| good
2025-10-21T03:00:00.000Z	44 \| good	7.609 \| good	33.854 \| good	15.241 \| good	1.686 \| good	10.655 \| good	0.196 \| good
2025-10-21T04:00:00.000Z	27 \| good	4.706 \| good	17.994 \| good	8.255 \| good	0.214 \| good	15.253 \| good	0.333 \| good
2025-10-21T05:00:00.000Z	27 \| good	4.706 \| good	17.994 \| good	8.255 \| good	0.214 \| good	15.253 \| good	0.333 \| good
2025-10-21T06:00:00.000Z	44 \| good	8.207 \| good	35.971 \| good	15.219 \| good	1.622 \| good	9.559 \| good	0.193 \| good
2025-10-21T07:00:00.000Z	38 \| good	7.206 \| good	31.853 \| good	10.286 \| good	1.737 \| good	8.591 \| good	0.185 \| good
2025-10-21T08:00:00.000Z	38 \| good	6.844 \| good	29.946 \| good	6.217 \| good	1.852 \| good	7.623 \| good	0.177 \| good
2025-10-21T09:00:00.000Z	33 \| good	6.153 \| good	26.95 \| good	6.376 \| good	1.967 \| good	6.654 \| good	0.169 \| good
2025-10-21T10:00:00.000Z	38 \| good	6.828 \| good	29.996 \| good	3.404 \| good	1.997 \| good	7.369 \| good	0.179 \| good
2025-10-21T11:00:00.000Z	44 \| good	7.502 \| good	32.949 \| good	3.618 \| good	2.027 \| good	8.084 \| good	0.188 \| good
2025-10-21T12:00:00.000Z	44 \| good	8.21 \| good	35.93 \| good	4.158 \| good	2.057 \| good	8.798 \| good	0.197 \| good
2025-10-21T13:00:00.000Z	44 \| good	8.226 \| good	35.972 \| good	9.099 \| good	1.997 \| good	7.564 \| good	0.196 \| good
2025-10-21T14:00:00.000Z	38 \| good	7.3 \| good	32.005 \| good	14.803 \| good	1.938 \| good	6.33 \| good	0.195 \| good
2025-10-21T15:00:00.000Z	38 \| good	7.123 \| good	31.891 \| good	26.307 \| good	1.878 \| good	5.096 \| good	0.193 \| good
2025-10-21T16:00:00.000Z	38 \| good	6.973 \| good	30.95 \| good	37.891 \| good	1.756 \| good	4.094 \| good	0.184 \| good
2025-10-21T17:00:00.000Z	40 \| good	6.403 \| good	28.843 \| good	43.078 \| good	1.633 \| good	3.092 \| good	0.175 \| good
2025-10-21T18:00:00.000Z	42 \| good	6.636 \| good	29.881 \| good	44.556 \| good	1.511 \| good	2.09 \| good	0.166 \| good
2025-10-21T19:00:00.000Z	43 \| good	6.517 \| good	28.951 \| good	45.593 \| good	1.462 \| good	2.158 \| good	0.163 \| good
2025-10-21T20:00:00.000Z	43 \| good	6.632 \| good	29.848 \| good	45.955 \| good	1.413 \| good	2.225 \| good	0.159 \| good
2025-10-21T21:00:00.000Z	44 \| good	7.51 \| good	32.997 \| good	40.921 \| good	1.365 \| good	2.292 \| good	0.156 \| good
2025-10-21T22:00:00.000Z	34 \| good	6.01 \| good	26.841 \| good	36.664 \| good	1.402 \| good	5.859 \| good	0.186 \| good
2025-10-21T23:00:00.000Z	37 \| good	4.871 \| good	21.012 \| good	40.468 \| good	1.439 \| good	9.425 \| good	0.216 \| good
2025-10-22T00:00:00.000Z	36 \| good	4.233 \| good	18.897 \| good	38.597 \| good	1.476 \| good	12.992 \| good	0.246 \| good
2025-10-22T01:00:00.000Z	30 \| good	5.069 \| good	21.919 \| good	32.198 \| good	1.605 \| good	10.943 \| good	0.225 \| good
2025-10-22T02:00:00.000Z	29 \| good	4.773 \| good	20.946 \| good	31.087 \| good	1.734 \| good	8.895 \| good	0.204 \| good
2025-10-22T03:00:00.000Z	27 \| good	5.428 \| good	23 \| good	25.77 \| good	1.863 \| good	6.846 \| good	0.183 \| good
2025-10-22T04:00:00.000Z	33 \| good	5.505 \| good	23.909 \| good	21.441 \| good	2.038 \| good	5.573 \| good	0.167 \| good
2025-10-22T05:00:00.000Z	33 \| good	5.981 \| good	26.789 \| good	22.018 \| good	2.214 \| good	4.301 \| good	0.15 \| good
2025-10-22T06:00:00.000Z	33 \| good	5.578 \| good	23.997 \| good	21.884 \| good	2.39 \| good	3.028 \| good	0.133 \| good
2025-10-22T07:00:00.000Z	27 \| good	4.87 \| good	21.012 \| good	20.845 \| good	2.595 \| good	2.759 \| good	0.129 \| good
2025-10-22T08:00:00.000Z	27 \| good	5.025 \| good	21.91 \| good	21.548 \| good	2.801 \| good	2.491 \| good	0.125 \| good
2025-10-22T09:00:00.000Z	22 \| good	4.22 \| good	18.795 \| good	21.209 \| good	3.006 \| good	2.222 \| good	0.121 \| good
2025-10-22T10:00:00.000Z	22 \| good	4.484 \| good	19.117 \| good	21.835 \| good	2.991 \| good	2.816 \| good	0.126 \| good
2025-10-22T11:00:00.000Z	27 \| good	4.592 \| good	19.985 \| good	16.21 \| good	2.976 \| good	3.409 \| good	0.13 \| good
2025-10-22T12:00:00.000Z	27 \| good	4.712 \| good	20.82 \| good	15.858 \| good	2.961 \| good	4.002 \| good	0.135 \| good
2025-10-22T13:00:00.000Z	27 \| good	4.68 \| good	19.995 \| good	21.137 \| good	2.712 \| good	3.214 \| good	0.132 \| good
2025-10-22T14:00:00.000Z	28 \| good	3.997 \| good	17.879 \| good	30.084 \| good	2.464 \| good	2.425 \| good	0.129 \| good
2025-10-22T15:00:00.000Z	31 \| good	3.857 \| good	16.972 \| good	33.902 \| good	2.215 \| good	1.636 \| good	0.125 \| good
2025-10-22T16:00:00.000Z	36 \| good	3.307 \| good	14.879 \| good	38.677 \| good	1.917 \| good	1.468 \| good	0.123 \| good
2025-10-22T17:00:00.000Z	40 \| good	2.958 \| good	12 \| good	42.811 \| good	1.62 \| good	1.3 \| good	0.12 \| good
2025-10-22T18:00:00.000Z	41 \| good	3.65 \| good	16.005 \| good	43.76 \| good	1.322 \| good	1.132 \| good	0.117 \| good
2025-10-22T19:00:00.000Z	42 \| good	3.769 \| good	16.096 \| good	44.858 \| good	1.363 \| good	1.365 \| good	0.12 \| good
2025-10-22T20:00:00.000Z	39 \| good	4.027 \| good	17.918 \| good	42.45 \| good	1.404 \| good	1.598 \| good	0.123 \| good
2025-10-22T21:00:00.000Z	37 \| good	4.629 \| good	20.029 \| good	40.129 \| good	1.445 \| good	1.831 \| good	0.126 \| good
2025-10-22T22:00:00.000Z	33 \| good	3.911 \| good	17 \| good	35.978 \| good	1.651 \| good	2.419 \| good	0.13 \| good
2025-10-22T23:00:00.000Z	29 \| good	4.099 \| good	18 \| good	30.731 \| good	1.856 \| good	3.008 \| good	0.135 \| good
2025-10-23T00:00:00.000Z	29 \| good	3.814 \| good	3.819 \| good	30.75 \| good	2.041 \| good	3.311 \| good	0.138 \| good
2025-10-23T01:00:00.000Z	27 \| good	5.342 \| good	23.023 \| good	25.088 \| good	2.217 \| good	3.384 \| good	0.138 \| good
2025-10-23T02:00:00.000Z	33 \| good	6.016 \| good	26.899 \| good	24.202 \| good	2.372 \| good	3.171 \| good	0.137 \| good
2025-10-23T03:00:00.000Z	33 \| good	6.422 \| good	28.917 \| good	23.584 \| good	2.527 \| good	2.958 \| good	0.136 \| good
2025-10-23T04:00:00.000Z	38 \| good	6.709 \| good	29.943 \| good	22.627 \| good	2.476 \| good	2.893 \| good	0.136 \| good
2025-10-23T05:00:00.000Z	38 \| good	7.007 \| good	30.987 \| good	19.411 \| good	2.424 \| good	2.829 \| good	0.136 \| good

Frederick

Empower business decisions with accurate air quality data

Real-time air quality map: Monitor AQI near Frederick, Maryland

0.33ppm

How accurate is Maryland, USA air quality data?

The air quality data for Maryland, 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 Frederick, Maryland get updated?

Air quality updates for Frederick, Maryland are available every hour.

What time in the past 24 hours saw the poorest air quality in Frederick, Maryland?

Frederick, Maryland experienced its worst air quality at 03:00:00, 2025-10-19.

When was air quality in Frederick, Maryland the best over the past 24 hours?

The best air quality in Frederick, Maryland was observed at 11:00:00 on 2025-10-20.

What is the air quality in Frederick, Maryland right now?

The air quality in Frederick, Maryland right now is Good, with an AQI of 26.

What pollutant is most frequently found in Frederick, Maryland?

In Frederick, Maryland, O3 is the most frequently found pollutant.

What can I do if the air quality in Frederick, Maryland is poor?

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

What is the PM_2.5 concentration in Frederick, Maryland right now?

Frederick, Maryland currently has a PM_2.5 concentration of 1.109 μg/m³.

What is the current level of PM₁₀ in Frederick, Maryland?

Frederick, Maryland currently has a PM₁₀ concentration of 4.925 μg/m³.

What is the current level of carbon monoxide (CO) in Frederick, Maryland?

The current carbon monoxide (CO) level in Frederick, Maryland is 0.16 ppm.

What is the current level of sulfur dioxide (SO₂) in Frederick, Maryland?

The current sulfur dioxide (SO₂) concentration in Frederick, Maryland is 0.188 ppb.

What is the current level of ozone (O₃) in Frederick, Maryland?

Frederick, Maryland currently has an ozone (O₃) concentration of 27.91 ppm.

What is the current level of nitrogen dioxide (NO₂) in Frederick, Maryland?

The current level of nitrogen dioxide (NO₂) in Frederick, Maryland is 3.371 ppb.

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