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

Rockville, Maryland currently has a PM10 concentration of 39.545 μg/m3.

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

The current sulfur dioxide (SO2) concentration in Rockville, Maryland is 0.199 ppb.

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

Rockville, Maryland currently has an ozone (O3) concentration of 8.517 ppm.

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

The current level of nitrogen dioxide (NO2) in Rockville, Maryland is 10.819 ppb.

Current air quality index in Rockville, Maryland today

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

Stay updated with real-time air quality in Rockville, 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

Rockville, Maryland

Last updated: ... (Local time)

Major air pollutants in Rockville, Maryland

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

9.21 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

39.55 μg/m³

155

255

425

605+

Ozone (O₃)

8.52 ppb

201

201+

Sulfur Dioxide (SO₂)

0.20 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

10.82 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.29 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

High

Rockville, Maryland

Get Live Pollen Counts

Rockville, Maryland

Scroll To Air Quality Map

Track live Rockville, Maryland air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-04T12:00:00.000Z	38 \| good	7.238 \| good	32.646 \| good	16.053 \| good	0.38 \| good	11.912 \| good	0.355 \| good
2025-06-04T13:00:00.000Z	44 \| good	8.101 \| good	35.391 \| good	34.721 \| good	2.172 \| good	1.552 \| good	0.233 \| good
2025-06-04T14:00:00.000Z	44 \| good	7.94 \| good	35.655 \| good	31.677 \| good	0.37 \| good	11.056 \| good	0.271 \| good
2025-06-04T15:00:00.000Z	52 \| moderate	9.572 \| good	42.826 \| good	39.311 \| good	0.335 \| good	10.172 \| good	0.271 \| good
2025-06-04T16:00:00.000Z	56 \| moderate	11.91 \| good	52.794 \| good	40.854 \| good	0.314 \| good	8.623 \| good	0.271 \| good
2025-06-04T17:00:00.000Z	54 \| moderate	11.245 \| good	47.592 \| good	49.949 \| good	0.311 \| good	8.422 \| good	0.271 \| good
2025-06-04T18:00:00.000Z	56 \| moderate	11.545 \| good	51.546 \| good	55.787 \| fine	0.286 \| good	4.173 \| good	0.254 \| good
2025-06-04T19:00:00.000Z	84 \| moderate	12.851 \| fine	57.766 \| fine	64.748 \| fine	0.31 \| good	4.178 \| good	0.254 \| good
2025-06-04T20:00:00.000Z	77 \| moderate	13.717 \| fine	60.512 \| fine	63.001 \| fine	0.262 \| good	3.239 \| good	0.271 \| good
2025-06-04T21:00:00.000Z	80 \| moderate	15.076 \| fine	66.13 \| fine	63.942 \| fine	0.303 \| good	2.609 \| good	0.253 \| good
2025-06-04T22:00:00.000Z	77 \| moderate	15.406 \| fine	69.391 \| fine	62.814 \| fine	0.29 \| good	3.032 \| good	0.253 \| good
2025-06-04T23:00:00.000Z	64 \| moderate	15.689 \| fine	68.155 \| fine	58.588 \| fine	0.225 \| good	3.116 \| good	0.253 \| good
2025-06-05T00:00:00.000Z	62 \| moderate	14.808 \| fine	66.473 \| fine	57.683 \| fine	0.226 \| good	4.008 \| good	0.288 \| good
2025-06-05T01:00:00.000Z	62 \| moderate	14.656 \| fine	63.18 \| fine	57.852 \| fine	0.26 \| good	4.55 \| good	0.305 \| good
2025-06-05T02:00:00.000Z	58 \| moderate	13.267 \| fine	59.277 \| fine	48.976 \| good	0.224 \| good	5.668 \| good	0.305 \| good
2025-06-05T03:00:00.000Z	56 \| moderate	12.153 \| fine	53.237 \| good	47.175 \| good	0.225 \| good	6.536 \| good	0.305 \| good
2025-06-05T04:00:00.000Z	56 \| moderate	12.084 \| good	53.604 \| good	43.75 \| good	0.214 \| good	7.118 \| good	0.287 \| good
2025-06-05T05:00:00.000Z	56 \| moderate	12.291 \| fine	55.211 \| fine	40.418 \| good	0.229 \| good	7.383 \| good	0.32 \| good
2025-06-05T06:00:00.000Z	58 \| moderate	12.669 \| fine	56.223 \| fine	30.746 \| good	0.215 \| good	8.941 \| good	0.27 \| good
2025-06-05T07:00:00.000Z	58 \| moderate	13.216 \| fine	58.146 \| fine	24.806 \| good	0.231 \| good	5.093 \| good	0.271 \| good
2025-06-05T08:00:00.000Z	58 \| moderate	12.752 \| fine	57.554 \| fine	24.319 \| good	0.495 \| good	6.23 \| good	0.271 \| good
2025-06-05T09:00:00.000Z	54 \| moderate	10.651 \| good	47.275 \| good	25.306 \| good	0.465 \| good	4.821 \| good	0.287 \| good
2025-06-05T10:00:00.000Z	56 \| moderate	12.45 \| fine	56.924 \| fine	24.65 \| good	0.216 \| good	8.016 \| good	0.276 \| good
2025-06-05T11:00:00.000Z	56 \| moderate	11.601 \| good	50.889 \| good	20.019 \| good	0.321 \| good	6.797 \| good	0.242 \| good
2025-06-05T12:00:00.000Z	54 \| moderate	10.583 \| good	47.286 \| good	27.931 \| good	0.299 \| good	6.97 \| good	0.306 \| good
2025-06-05T13:00:00.000Z	52 \| moderate	10.378 \| good	47.414 \| good	31.174 \| good	0.303 \| good	6.5 \| good	0.254 \| good
2025-06-05T14:00:00.000Z	56 \| moderate	11.679 \| good	52.932 \| good	29.566 \| good	0.262 \| good	8.37 \| good	0.254 \| good
2025-06-05T15:00:00.000Z	56 \| moderate	11.971 \| good	53.083 \| good	34.377 \| good	0.392 \| good	9.058 \| good	0.254 \| good
2025-06-05T16:00:00.000Z	60 \| moderate	14.095 \| fine	63.265 \| fine	42.888 \| good	0.356 \| good	8.041 \| good	0.254 \| good
2025-06-05T17:00:00.000Z	58 \| moderate	12.61 \| fine	56.762 \| fine	49.499 \| good	0.354 \| good	5.853 \| good	0.254 \| good
2025-06-05T18:00:00.000Z	60 \| moderate	14.012 \| fine	63.458 \| fine	55.814 \| fine	0.314 \| good	3.97 \| good	0.236 \| good
2025-06-05T19:00:00.000Z	64 \| moderate	15.78 \| fine	70.853 \| fine	58.519 \| fine	0.312 \| good	3.395 \| good	0.236 \| good
2025-06-05T20:00:00.000Z	64 \| moderate	16.3 \| fine	72.899 \| fine	59.368 \| fine	0.293 \| good	3.659 \| good	0.219 \| good
2025-06-05T21:00:00.000Z	74 \| moderate	14.948 \| fine	66.444 \| fine	62.006 \| fine	0.311 \| good	2.674 \| good	0.254 \| good
2025-06-05T22:00:00.000Z	64 \| moderate	14.611 \| fine	65.325 \| fine	58.974 \| fine	0.292 \| good	3.867 \| good	0.253 \| good
2025-06-05T23:00:00.000Z	60 \| moderate	14.097 \| fine	62.397 \| fine	53.795 \| good	0.615 \| good	3.44 \| good	0.253 \| good
2025-06-06T00:00:00.000Z	58 \| moderate	13.374 \| fine	59.574 \| fine	52.293 \| good	0.29 \| good	3.895 \| good	0.253 \| good
2025-06-06T01:00:00.000Z	56 \| moderate	12.015 \| good	53.5 \| good	47.424 \| good	0.282 \| good	3.79 \| good	0.253 \| good
2025-06-06T02:00:00.000Z	52 \| moderate	9.977 \| good	44.381 \| good	39.273 \| good	0.195 \| good	4.263 \| good	0.269 \| good
2025-06-06T03:00:00.000Z	52 \| moderate	10.463 \| good	46.261 \| good	32.484 \| good	0.216 \| good	5.473 \| good	0.304 \| good
2025-06-06T04:00:00.000Z	54 \| moderate	11.079 \| good	48.308 \| good	31.568 \| good	0.211 \| good	4.559 \| good	0.287 \| good
2025-06-06T05:00:00.000Z	52 \| moderate	9.795 \| good	44.005 \| good	28.213 \| good	0.205 \| good	6.476 \| good	0.304 \| good
2025-06-06T06:00:00.000Z	49 \| good	9.198 \| good	40.422 \| good	26.047 \| good	0.185 \| good	7.721 \| good	0.287 \| good
2025-06-06T07:00:00.000Z	52 \| moderate	10.076 \| good	44.543 \| good	20.779 \| good	0.183 \| good	9.479 \| good	0.287 \| good
2025-06-06T08:00:00.000Z	49 \| good	9.032 \| good	40.124 \| good	15.846 \| good	0.202 \| good	9.162 \| good	0.27 \| good
2025-06-06T09:00:00.000Z	44 \| good	8.218 \| good	36.238 \| good	11.255 \| good	0.179 \| good	7.894 \| good	0.287 \| good
2025-06-06T10:00:00.000Z	52 \| moderate	9.814 \| good	44.374 \| good	7.342 \| good	0.194 \| good	9.204 \| good	0.354 \| good
2025-06-06T11:00:00.000Z	49 \| good	9.211 \| good	39.545 \| good	8.517 \| good	0.199 \| good	10.819 \| good	0.287 \| good
2025-06-06T11:00:00.000Z	49 \| good	9.211 \| good	39.545 \| good	8.517 \| good	0.199 \| good	10.819 \| good	0.287 \| good
2025-06-06T12:00:00.000Z	44 \| good	8.186 \| good	36.143 \| good	25.597 \| good	1.58 \| good	5.03 \| good	0.205 \| good
2025-06-06T13:00:00.000Z	38 \| good	7.443 \| good	32.852 \| good	33.118 \| good	1.09 \| good	1.56 \| good	0.181 \| good
2025-06-06T14:00:00.000Z	52 \| moderate	10.479 \| good	46.206 \| good	44.368 \| good	1.261 \| good	1.964 \| good	0.18 \| good
2025-06-06T15:00:00.000Z	52 \| moderate	9.963 \| good	43.939 \| good	52.042 \| good	1.432 \| good	2.369 \| good	0.18 \| good
2025-06-06T16:00:00.000Z	61 \| moderate	8.241 \| good	36.247 \| good	58.164 \| fine	0.735 \| good	0.974 \| good	0.149 \| good
2025-06-06T17:00:00.000Z	54 \| moderate	7.922 \| good	34.938 \| good	55.775 \| fine	0.866 \| good	1.097 \| good	0.15 \| good
2025-06-06T18:00:00.000Z	54 \| moderate	9.417 \| good	41.754 \| good	55.561 \| fine	0.998 \| good	1.22 \| good	0.15 \| good
2025-06-06T19:00:00.000Z	49 \| good	9.488 \| good	42.162 \| good	53.223 \| good	0.543 \| good	1.378 \| good	0.14 \| good
2025-06-06T20:00:00.000Z	54 \| moderate	8.902 \| good	39.147 \| good	55.853 \| fine	0.621 \| good	1.538 \| good	0.14 \| good
2025-06-06T21:00:00.000Z	51 \| moderate	8.503 \| good	37.213 \| good	55.418 \| fine	0.699 \| good	1.698 \| good	0.14 \| good
2025-06-06T22:00:00.000Z	50 \| good	6.59 \| good	29.073 \| good	54.388 \| good	0.791 \| good	6.294 \| good	0.193 \| good
2025-06-06T23:00:00.000Z	45 \| good	5.094 \| good	22.16 \| good	49.041 \| good	0.923 \| good	7.06 \| good	0.192 \| good
2025-06-07T00:00:00.000Z	38 \| good	6.867 \| good	30.481 \| good	37.794 \| good	1.055 \| good	7.827 \| good	0.192 \| good
2025-06-07T01:00:00.000Z	44 \| good	8.499 \| good	37.428 \| good	28.205 \| good	0.917 \| good	8.971 \| good	0.233 \| good
2025-06-07T02:00:00.000Z	38 \| good	7.088 \| good	31.458 \| good	20.852 \| good	0.95 \| good	10.032 \| good	0.234 \| good
2025-06-07T03:00:00.000Z	44 \| good	7.86 \| good	34.662 \| good	16.295 \| good	0.984 \| good	11.092 \| good	0.234 \| good
2025-06-07T04:00:00.000Z	44 \| good	8.308 \| good	36.501 \| good	14.791 \| good	1.236 \| good	9.59 \| good	0.26 \| good
2025-06-07T05:00:00.000Z	44 \| good	7.745 \| good	34.19 \| good	15.29 \| good	1.166 \| good	11.941 \| good	0.27 \| good
2025-06-07T06:00:00.000Z	44 \| good	7.731 \| good	34.031 \| good	16.713 \| good	1.096 \| good	14.293 \| good	0.281 \| good
2025-06-07T07:00:00.000Z	44 \| good	7.72 \| good	33.988 \| good	13.145 \| good	1.583 \| good	3.249 \| good	0.21 \| good
2025-06-07T08:00:00.000Z	44 \| good	7.525 \| good	32.991 \| good	11.711 \| good	1.612 \| good	3.724 \| good	0.214 \| good
2025-06-07T09:00:00.000Z	49 \| good	8.946 \| good	39.155 \| good	6.628 \| good	1.641 \| good	4.199 \| good	0.218 \| good
2025-06-07T10:00:00.000Z	44 \| good	8.179 \| good	36.022 \| good	13.227 \| good	1.876 \| good	2.237 \| good	0.218 \| good
2025-06-07T11:00:00.000Z	38 \| good	6.804 \| good	30.001 \| good	18.058 \| good	1.943 \| good	2.549 \| good	0.22 \| good
2025-06-07T12:00:00.000Z	33 \| good	5.61 \| good	24.409 \| good	24.009 \| good	2.009 \| good	2.86 \| good	0.222 \| good
2025-06-07T13:00:00.000Z	28 \| good	3.374 \| good	14.816 \| good	29.946 \| good	1.255 \| good	1.383 \| good	0.237 \| good
2025-06-07T14:00:00.000Z	38 \| good	6.885 \| good	30.281 \| good	38.949 \| good	1.292 \| good	1.557 \| good	0.237 \| good
2025-06-07T15:00:00.000Z	44 \| good	7.158 \| good	31.823 \| good	47.7 \| good	1.329 \| good	1.731 \| good	0.237 \| good
2025-06-07T16:00:00.000Z	48 \| good	6.485 \| good	28.761 \| good	51.97 \| good	0.552 \| good	0.792 \| good	0.221 \| good
2025-06-07T17:00:00.000Z	50 \| good	7.338 \| good	32.182 \| good	53.685 \| good	0.539 \| good	0.885 \| good	0.221 \| good
2025-06-07T18:00:00.000Z	54 \| moderate	10.012 \| good	44.709 \| good	56.254 \| fine	0.525 \| good	0.977 \| good	0.222 \| good
2025-06-07T19:00:00.000Z	58 \| moderate	12.368 \| fine	56.346 \| fine	56.818 \| fine	0.468 \| good	1.034 \| good	0.214 \| good
2025-06-07T20:00:00.000Z	64 \| moderate	12.836 \| fine	57.343 \| fine	59.267 \| fine	0.43 \| good	1.163 \| good	0.214 \| good
2025-06-07T21:00:00.000Z	64 \| moderate	12.125 \| fine	54.734 \| good	59.412 \| fine	0.392 \| good	1.291 \| good	0.214 \| good
2025-06-07T22:00:00.000Z	67 \| moderate	9.685 \| good	43.135 \| good	59.863 \| fine	0.505 \| good	4.765 \| good	0.256 \| good
2025-06-07T23:00:00.000Z	58 \| moderate	7.915 \| good	34.869 \| good	57.285 \| fine	0.51 \| good	5.347 \| good	0.258 \| good
2025-06-08T00:00:00.000Z	40 \| good	5.613 \| good	24.257 \| good	43.431 \| good	0.516 \| good	5.93 \| good	0.26 \| good
2025-06-08T01:00:00.000Z	44 \| good	7.841 \| good	34.125 \| good	29.319 \| good	0.573 \| good	7.82 \| good	0.288 \| good
2025-06-08T02:00:00.000Z	44 \| good	8.406 \| good	37.024 \| good	22.624 \| good	0.679 \| good	9 \| good	0.295 \| good
2025-06-08T03:00:00.000Z	52 \| moderate	10.049 \| good	45.019 \| good	20.428 \| good	0.785 \| good	10.181 \| good	0.301 \| good
2025-06-08T04:00:00.000Z	56 \| moderate	12.204 \| fine	54.9 \| good	20.25 \| good	1.477 \| good	5.088 \| good	0.285 \| good
2025-06-08T05:00:00.000Z	64 \| moderate	15.83 \| fine	71.149 \| fine	19.083 \| good	1.74 \| good	5.714 \| good	0.287 \| good
2025-06-08T06:00:00.000Z	64 \| moderate	15.991 \| fine	16.21 \| good	34.509 \| good	2.003 \| good	6.306 \| good	0.29 \| good
2025-06-08T07:00:00.000Z	67 \| moderate	17.736 \| fine	78.363 \| fine	17.979 \| good	2.006 \| good	4.542 \| good	0.288 \| good
2025-06-08T08:00:00.000Z	67 \| moderate	17.674 \| fine	77.901 \| fine	15.327 \| good	2.089 \| good	5.023 \| good	0.288 \| good
2025-06-08T09:00:00.000Z	67 \| moderate	18.35 \| fine	81.398 \| fine	5.67 \| good	2.172 \| good	5.504 \| good	0.288 \| good
2025-06-08T10:00:00.000Z	71 \| moderate	19.799 \| fine	87.478 \| fine	6.544 \| good	1.971 \| good	4.636 \| good	0.298 \| good
2025-06-08T11:00:00.000Z	69 \| moderate	19.27 \| fine	84.724 \| fine	13.301 \| good	2.075 \| good	5.226 \| good	0.299 \| good

Rockville

Empower business decisions with accurate air quality data

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

0.36ppm

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

Air quality levels in US

Check live rankings of places in the USA affected by air pollution.

View Polluted Cities

Check live rankings of places in the USA with the cleanest air.

View Clean Cities

Frequently asked questions

How frequently does the air quality data for Rockville, Maryland get updated?

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

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

Rockville, Maryland experienced its worst air quality at 09:00:00, 2025-06-05.

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

The best air quality in Rockville, Maryland was observed at 09:00:00 on 2025-06-06.

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

The air quality in Rockville, Maryland right now is Good, with an AQI of 49.

What pollutant is most frequently found in Rockville, Maryland?

In Rockville, Maryland, PM2.5 is the most frequently found pollutant.

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

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

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

Rockville, Maryland currently has a PM_2.5 concentration of 9.211 μg/m³.

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

Rockville, Maryland currently has a PM₁₀ concentration of 39.545 μg/m³.

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

The current carbon monoxide (CO) level in Rockville, Maryland is 0.287 ppm.

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

The current sulfur dioxide (SO₂) concentration in Rockville, Maryland is 0.199 ppb.

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

Rockville, Maryland currently has an ozone (O₃) concentration of 8.517 ppm.

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

The current level of nitrogen dioxide (NO₂) in Rockville, Maryland is 10.819 ppb.

Certified

APIs

Refund Policy

Historical Climate Data

Terms & Conditions

Refund Policy

Terms & Conditions

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-04T12:00:00.000Z	38 \| good	7.238 \| good	32.646 \| good	16.053 \| good	0.38 \| good	11.912 \| good	0.355 \| good
2025-06-04T13:00:00.000Z	44 \| good	8.101 \| good	35.391 \| good	34.721 \| good	2.172 \| good	1.552 \| good	0.233 \| good
2025-06-04T14:00:00.000Z	44 \| good	7.94 \| good	35.655 \| good	31.677 \| good	0.37 \| good	11.056 \| good	0.271 \| good
2025-06-04T15:00:00.000Z	52 \| moderate	9.572 \| good	42.826 \| good	39.311 \| good	0.335 \| good	10.172 \| good	0.271 \| good
2025-06-04T16:00:00.000Z	56 \| moderate	11.91 \| good	52.794 \| good	40.854 \| good	0.314 \| good	8.623 \| good	0.271 \| good
2025-06-04T17:00:00.000Z	54 \| moderate	11.245 \| good	47.592 \| good	49.949 \| good	0.311 \| good	8.422 \| good	0.271 \| good
2025-06-04T18:00:00.000Z	56 \| moderate	11.545 \| good	51.546 \| good	55.787 \| fine	0.286 \| good	4.173 \| good	0.254 \| good
2025-06-04T19:00:00.000Z	84 \| moderate	12.851 \| fine	57.766 \| fine	64.748 \| fine	0.31 \| good	4.178 \| good	0.254 \| good
2025-06-04T20:00:00.000Z	77 \| moderate	13.717 \| fine	60.512 \| fine	63.001 \| fine	0.262 \| good	3.239 \| good	0.271 \| good
2025-06-04T21:00:00.000Z	80 \| moderate	15.076 \| fine	66.13 \| fine	63.942 \| fine	0.303 \| good	2.609 \| good	0.253 \| good
2025-06-04T22:00:00.000Z	77 \| moderate	15.406 \| fine	69.391 \| fine	62.814 \| fine	0.29 \| good	3.032 \| good	0.253 \| good
2025-06-04T23:00:00.000Z	64 \| moderate	15.689 \| fine	68.155 \| fine	58.588 \| fine	0.225 \| good	3.116 \| good	0.253 \| good
2025-06-05T00:00:00.000Z	62 \| moderate	14.808 \| fine	66.473 \| fine	57.683 \| fine	0.226 \| good	4.008 \| good	0.288 \| good
2025-06-05T01:00:00.000Z	62 \| moderate	14.656 \| fine	63.18 \| fine	57.852 \| fine	0.26 \| good	4.55 \| good	0.305 \| good
2025-06-05T02:00:00.000Z	58 \| moderate	13.267 \| fine	59.277 \| fine	48.976 \| good	0.224 \| good	5.668 \| good	0.305 \| good
2025-06-05T03:00:00.000Z	56 \| moderate	12.153 \| fine	53.237 \| good	47.175 \| good	0.225 \| good	6.536 \| good	0.305 \| good
2025-06-05T04:00:00.000Z	56 \| moderate	12.084 \| good	53.604 \| good	43.75 \| good	0.214 \| good	7.118 \| good	0.287 \| good
2025-06-05T05:00:00.000Z	56 \| moderate	12.291 \| fine	55.211 \| fine	40.418 \| good	0.229 \| good	7.383 \| good	0.32 \| good
2025-06-05T06:00:00.000Z	58 \| moderate	12.669 \| fine	56.223 \| fine	30.746 \| good	0.215 \| good	8.941 \| good	0.27 \| good
2025-06-05T07:00:00.000Z	58 \| moderate	13.216 \| fine	58.146 \| fine	24.806 \| good	0.231 \| good	5.093 \| good	0.271 \| good
2025-06-05T08:00:00.000Z	58 \| moderate	12.752 \| fine	57.554 \| fine	24.319 \| good	0.495 \| good	6.23 \| good	0.271 \| good
2025-06-05T09:00:00.000Z	54 \| moderate	10.651 \| good	47.275 \| good	25.306 \| good	0.465 \| good	4.821 \| good	0.287 \| good
2025-06-05T10:00:00.000Z	56 \| moderate	12.45 \| fine	56.924 \| fine	24.65 \| good	0.216 \| good	8.016 \| good	0.276 \| good
2025-06-05T11:00:00.000Z	56 \| moderate	11.601 \| good	50.889 \| good	20.019 \| good	0.321 \| good	6.797 \| good	0.242 \| good
2025-06-05T12:00:00.000Z	54 \| moderate	10.583 \| good	47.286 \| good	27.931 \| good	0.299 \| good	6.97 \| good	0.306 \| good
2025-06-05T13:00:00.000Z	52 \| moderate	10.378 \| good	47.414 \| good	31.174 \| good	0.303 \| good	6.5 \| good	0.254 \| good
2025-06-05T14:00:00.000Z	56 \| moderate	11.679 \| good	52.932 \| good	29.566 \| good	0.262 \| good	8.37 \| good	0.254 \| good
2025-06-05T15:00:00.000Z	56 \| moderate	11.971 \| good	53.083 \| good	34.377 \| good	0.392 \| good	9.058 \| good	0.254 \| good
2025-06-05T16:00:00.000Z	60 \| moderate	14.095 \| fine	63.265 \| fine	42.888 \| good	0.356 \| good	8.041 \| good	0.254 \| good
2025-06-05T17:00:00.000Z	58 \| moderate	12.61 \| fine	56.762 \| fine	49.499 \| good	0.354 \| good	5.853 \| good	0.254 \| good
2025-06-05T18:00:00.000Z	60 \| moderate	14.012 \| fine	63.458 \| fine	55.814 \| fine	0.314 \| good	3.97 \| good	0.236 \| good
2025-06-05T19:00:00.000Z	64 \| moderate	15.78 \| fine	70.853 \| fine	58.519 \| fine	0.312 \| good	3.395 \| good	0.236 \| good
2025-06-05T20:00:00.000Z	64 \| moderate	16.3 \| fine	72.899 \| fine	59.368 \| fine	0.293 \| good	3.659 \| good	0.219 \| good
2025-06-05T21:00:00.000Z	74 \| moderate	14.948 \| fine	66.444 \| fine	62.006 \| fine	0.311 \| good	2.674 \| good	0.254 \| good
2025-06-05T22:00:00.000Z	64 \| moderate	14.611 \| fine	65.325 \| fine	58.974 \| fine	0.292 \| good	3.867 \| good	0.253 \| good
2025-06-05T23:00:00.000Z	60 \| moderate	14.097 \| fine	62.397 \| fine	53.795 \| good	0.615 \| good	3.44 \| good	0.253 \| good
2025-06-06T00:00:00.000Z	58 \| moderate	13.374 \| fine	59.574 \| fine	52.293 \| good	0.29 \| good	3.895 \| good	0.253 \| good
2025-06-06T01:00:00.000Z	56 \| moderate	12.015 \| good	53.5 \| good	47.424 \| good	0.282 \| good	3.79 \| good	0.253 \| good
2025-06-06T02:00:00.000Z	52 \| moderate	9.977 \| good	44.381 \| good	39.273 \| good	0.195 \| good	4.263 \| good	0.269 \| good
2025-06-06T03:00:00.000Z	52 \| moderate	10.463 \| good	46.261 \| good	32.484 \| good	0.216 \| good	5.473 \| good	0.304 \| good
2025-06-06T04:00:00.000Z	54 \| moderate	11.079 \| good	48.308 \| good	31.568 \| good	0.211 \| good	4.559 \| good	0.287 \| good
2025-06-06T05:00:00.000Z	52 \| moderate	9.795 \| good	44.005 \| good	28.213 \| good	0.205 \| good	6.476 \| good	0.304 \| good
2025-06-06T06:00:00.000Z	49 \| good	9.198 \| good	40.422 \| good	26.047 \| good	0.185 \| good	7.721 \| good	0.287 \| good
2025-06-06T07:00:00.000Z	52 \| moderate	10.076 \| good	44.543 \| good	20.779 \| good	0.183 \| good	9.479 \| good	0.287 \| good
2025-06-06T08:00:00.000Z	49 \| good	9.032 \| good	40.124 \| good	15.846 \| good	0.202 \| good	9.162 \| good	0.27 \| good
2025-06-06T09:00:00.000Z	44 \| good	8.218 \| good	36.238 \| good	11.255 \| good	0.179 \| good	7.894 \| good	0.287 \| good
2025-06-06T10:00:00.000Z	52 \| moderate	9.814 \| good	44.374 \| good	7.342 \| good	0.194 \| good	9.204 \| good	0.354 \| good
2025-06-06T11:00:00.000Z	49 \| good	9.211 \| good	39.545 \| good	8.517 \| good	0.199 \| good	10.819 \| good	0.287 \| good
2025-06-06T11:00:00.000Z	49 \| good	9.211 \| good	39.545 \| good	8.517 \| good	0.199 \| good	10.819 \| good	0.287 \| good
2025-06-06T12:00:00.000Z	44 \| good	8.186 \| good	36.143 \| good	25.597 \| good	1.58 \| good	5.03 \| good	0.205 \| good
2025-06-06T13:00:00.000Z	38 \| good	7.443 \| good	32.852 \| good	33.118 \| good	1.09 \| good	1.56 \| good	0.181 \| good
2025-06-06T14:00:00.000Z	52 \| moderate	10.479 \| good	46.206 \| good	44.368 \| good	1.261 \| good	1.964 \| good	0.18 \| good
2025-06-06T15:00:00.000Z	52 \| moderate	9.963 \| good	43.939 \| good	52.042 \| good	1.432 \| good	2.369 \| good	0.18 \| good
2025-06-06T16:00:00.000Z	61 \| moderate	8.241 \| good	36.247 \| good	58.164 \| fine	0.735 \| good	0.974 \| good	0.149 \| good
2025-06-06T17:00:00.000Z	54 \| moderate	7.922 \| good	34.938 \| good	55.775 \| fine	0.866 \| good	1.097 \| good	0.15 \| good
2025-06-06T18:00:00.000Z	54 \| moderate	9.417 \| good	41.754 \| good	55.561 \| fine	0.998 \| good	1.22 \| good	0.15 \| good
2025-06-06T19:00:00.000Z	49 \| good	9.488 \| good	42.162 \| good	53.223 \| good	0.543 \| good	1.378 \| good	0.14 \| good
2025-06-06T20:00:00.000Z	54 \| moderate	8.902 \| good	39.147 \| good	55.853 \| fine	0.621 \| good	1.538 \| good	0.14 \| good
2025-06-06T21:00:00.000Z	51 \| moderate	8.503 \| good	37.213 \| good	55.418 \| fine	0.699 \| good	1.698 \| good	0.14 \| good
2025-06-06T22:00:00.000Z	50 \| good	6.59 \| good	29.073 \| good	54.388 \| good	0.791 \| good	6.294 \| good	0.193 \| good
2025-06-06T23:00:00.000Z	45 \| good	5.094 \| good	22.16 \| good	49.041 \| good	0.923 \| good	7.06 \| good	0.192 \| good
2025-06-07T00:00:00.000Z	38 \| good	6.867 \| good	30.481 \| good	37.794 \| good	1.055 \| good	7.827 \| good	0.192 \| good
2025-06-07T01:00:00.000Z	44 \| good	8.499 \| good	37.428 \| good	28.205 \| good	0.917 \| good	8.971 \| good	0.233 \| good
2025-06-07T02:00:00.000Z	38 \| good	7.088 \| good	31.458 \| good	20.852 \| good	0.95 \| good	10.032 \| good	0.234 \| good
2025-06-07T03:00:00.000Z	44 \| good	7.86 \| good	34.662 \| good	16.295 \| good	0.984 \| good	11.092 \| good	0.234 \| good
2025-06-07T04:00:00.000Z	44 \| good	8.308 \| good	36.501 \| good	14.791 \| good	1.236 \| good	9.59 \| good	0.26 \| good
2025-06-07T05:00:00.000Z	44 \| good	7.745 \| good	34.19 \| good	15.29 \| good	1.166 \| good	11.941 \| good	0.27 \| good
2025-06-07T06:00:00.000Z	44 \| good	7.731 \| good	34.031 \| good	16.713 \| good	1.096 \| good	14.293 \| good	0.281 \| good
2025-06-07T07:00:00.000Z	44 \| good	7.72 \| good	33.988 \| good	13.145 \| good	1.583 \| good	3.249 \| good	0.21 \| good
2025-06-07T08:00:00.000Z	44 \| good	7.525 \| good	32.991 \| good	11.711 \| good	1.612 \| good	3.724 \| good	0.214 \| good
2025-06-07T09:00:00.000Z	49 \| good	8.946 \| good	39.155 \| good	6.628 \| good	1.641 \| good	4.199 \| good	0.218 \| good
2025-06-07T10:00:00.000Z	44 \| good	8.179 \| good	36.022 \| good	13.227 \| good	1.876 \| good	2.237 \| good	0.218 \| good
2025-06-07T11:00:00.000Z	38 \| good	6.804 \| good	30.001 \| good	18.058 \| good	1.943 \| good	2.549 \| good	0.22 \| good
2025-06-07T12:00:00.000Z	33 \| good	5.61 \| good	24.409 \| good	24.009 \| good	2.009 \| good	2.86 \| good	0.222 \| good
2025-06-07T13:00:00.000Z	28 \| good	3.374 \| good	14.816 \| good	29.946 \| good	1.255 \| good	1.383 \| good	0.237 \| good
2025-06-07T14:00:00.000Z	38 \| good	6.885 \| good	30.281 \| good	38.949 \| good	1.292 \| good	1.557 \| good	0.237 \| good
2025-06-07T15:00:00.000Z	44 \| good	7.158 \| good	31.823 \| good	47.7 \| good	1.329 \| good	1.731 \| good	0.237 \| good
2025-06-07T16:00:00.000Z	48 \| good	6.485 \| good	28.761 \| good	51.97 \| good	0.552 \| good	0.792 \| good	0.221 \| good
2025-06-07T17:00:00.000Z	50 \| good	7.338 \| good	32.182 \| good	53.685 \| good	0.539 \| good	0.885 \| good	0.221 \| good
2025-06-07T18:00:00.000Z	54 \| moderate	10.012 \| good	44.709 \| good	56.254 \| fine	0.525 \| good	0.977 \| good	0.222 \| good
2025-06-07T19:00:00.000Z	58 \| moderate	12.368 \| fine	56.346 \| fine	56.818 \| fine	0.468 \| good	1.034 \| good	0.214 \| good
2025-06-07T20:00:00.000Z	64 \| moderate	12.836 \| fine	57.343 \| fine	59.267 \| fine	0.43 \| good	1.163 \| good	0.214 \| good
2025-06-07T21:00:00.000Z	64 \| moderate	12.125 \| fine	54.734 \| good	59.412 \| fine	0.392 \| good	1.291 \| good	0.214 \| good
2025-06-07T22:00:00.000Z	67 \| moderate	9.685 \| good	43.135 \| good	59.863 \| fine	0.505 \| good	4.765 \| good	0.256 \| good
2025-06-07T23:00:00.000Z	58 \| moderate	7.915 \| good	34.869 \| good	57.285 \| fine	0.51 \| good	5.347 \| good	0.258 \| good
2025-06-08T00:00:00.000Z	40 \| good	5.613 \| good	24.257 \| good	43.431 \| good	0.516 \| good	5.93 \| good	0.26 \| good
2025-06-08T01:00:00.000Z	44 \| good	7.841 \| good	34.125 \| good	29.319 \| good	0.573 \| good	7.82 \| good	0.288 \| good
2025-06-08T02:00:00.000Z	44 \| good	8.406 \| good	37.024 \| good	22.624 \| good	0.679 \| good	9 \| good	0.295 \| good
2025-06-08T03:00:00.000Z	52 \| moderate	10.049 \| good	45.019 \| good	20.428 \| good	0.785 \| good	10.181 \| good	0.301 \| good
2025-06-08T04:00:00.000Z	56 \| moderate	12.204 \| fine	54.9 \| good	20.25 \| good	1.477 \| good	5.088 \| good	0.285 \| good
2025-06-08T05:00:00.000Z	64 \| moderate	15.83 \| fine	71.149 \| fine	19.083 \| good	1.74 \| good	5.714 \| good	0.287 \| good
2025-06-08T06:00:00.000Z	64 \| moderate	15.991 \| fine	16.21 \| good	34.509 \| good	2.003 \| good	6.306 \| good	0.29 \| good
2025-06-08T07:00:00.000Z	67 \| moderate	17.736 \| fine	78.363 \| fine	17.979 \| good	2.006 \| good	4.542 \| good	0.288 \| good
2025-06-08T08:00:00.000Z	67 \| moderate	17.674 \| fine	77.901 \| fine	15.327 \| good	2.089 \| good	5.023 \| good	0.288 \| good
2025-06-08T09:00:00.000Z	67 \| moderate	18.35 \| fine	81.398 \| fine	5.67 \| good	2.172 \| good	5.504 \| good	0.288 \| good
2025-06-08T10:00:00.000Z	71 \| moderate	19.799 \| fine	87.478 \| fine	6.544 \| good	1.971 \| good	4.636 \| good	0.298 \| good
2025-06-08T11:00:00.000Z	69 \| moderate	19.27 \| fine	84.724 \| fine	13.301 \| good	2.075 \| good	5.226 \| good	0.299 \| good

Current air quality index in Rockville, Maryland today

Major air pollutants in Rockville, Maryland

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Rockville, Maryland air quality forecast and history

Empower business decisions with accurate air quality data

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

Air quality in nearby cities

North Bethesda, Maryland

Redland, Maryland

Aspen Hill, Maryland

North Potomac, Maryland

Gaithersburg, Maryland

Potomac, Maryland

How accurate is Maryland, USA air quality data?

Air quality levels in US

Frequently asked questions

How frequently does the air quality data for Rockville, Maryland get updated?

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

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

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

What pollutant is most frequently found in Rockville, Maryland?

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

What is the PM2.5 concentration in Rockville, Maryland right now?

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

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

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

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

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

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

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

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

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

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

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