What is the current concentration of PM10 in Crofton, Maryland?

The current PM10 concentration at Crofton, Maryland is 37.519 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Crofton, Maryland?

The current sulfur dioxide (SO2) concentration at Crofton, Maryland is 0.423 ppb.

What is the current concentration of ozone (O3) in Crofton, Maryland?

The current ozone (O3) concentration at Crofton, Maryland is 13.064 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Crofton, Maryland?

The current nitrogen dioxide (NO2) concentration at Crofton, Maryland is 13.287 ppb.

Crofton, Maryland live air quality index now

Q: What is the current concentration of PM2.5 in Crofton, Maryland?

The current PM2.5 concentration at Crofton, Maryland is 8.308 μg/m3.

Stay updated with real-time air quality in Crofton, 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

Crofton, Maryland

Last updated: ... (Local time)

Major air pollutants in Crofton, Maryland

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

8.31 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

37.52 μg/m³

155

255

425

605+

Ozone (O₃)

13.06 ppb

201

201+

Sulfur Dioxide (SO₂)

0.42 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

13.29 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.28 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Looks like we don't have this data available right now

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Crofton, Maryland

Scroll To Air Quality Map

Track live Crofton, Maryland air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-03-06T14:00:00.000Z	49 \| good	9.354 \| good	39.29 \| good	6.783 \| good	0.274 \| good	13.303 \| good	0.292 \| good
2026-03-06T15:00:00.000Z	44 \| good	7.954 \| good	31.056 \| good	8.261 \| good	0.229 \| good	11.858 \| good	0.306 \| good
2026-03-06T16:00:00.000Z	33 \| good	6.072 \| good	24.774 \| good	18.087 \| good	0.216 \| good	12.371 \| good	0.32 \| good
2026-03-06T17:00:00.000Z	52 \| moderate	9.93 \| good	49.062 \| good	19.108 \| good	0.227 \| good	12.284 \| good	0.292 \| good
2026-03-06T18:00:00.000Z	52 \| moderate	9.807 \| good	40.945 \| good	19.621 \| good	0.302 \| good	10.834 \| good	0.245 \| good
2026-03-06T19:00:00.000Z	49 \| good	9.484 \| good	35.602 \| good	22.727 \| good	0.325 \| good	10.018 \| good	0.245 \| good
2026-03-06T20:00:00.000Z	52 \| moderate	9.677 \| good	43.6 \| good	21.058 \| good	0.298 \| good	10.514 \| good	0.258 \| good
2026-03-06T21:00:00.000Z	44 \| good	8.296 \| good	44.598 \| good	21.694 \| good	0.242 \| good	9.039 \| good	0.229 \| good
2026-03-06T22:00:00.000Z	54 \| moderate	11.12 \| good	38.821 \| good	18.775 \| good	0.291 \| good	9.855 \| good	0.247 \| good
2026-03-06T23:00:00.000Z	52 \| moderate	10.404 \| good	49.159 \| good	19.208 \| good	0.342 \| good	9.966 \| good	0.276 \| good
2026-03-07T00:00:00.000Z	41 \| good	5.624 \| good	43.587 \| good	27.455 \| good	0.396 \| good	9.278 \| good	0.244 \| good
2026-03-07T01:00:00.000Z	54 \| moderate	11.297 \| good	42.703 \| good	29.164 \| good	0.202 \| good	9.897 \| good	0.274 \| good
2026-03-07T02:00:00.000Z	56 \| moderate	11.624 \| good	39.608 \| good	24.76 \| good	0.34 \| good	7.758 \| good	0.229 \| good
2026-03-07T03:00:00.000Z	52 \| moderate	9.643 \| good	37.751 \| good	29.449 \| good	0.209 \| good	6.406 \| good	0.206 \| good
2026-03-07T04:00:00.000Z	52 \| moderate	9.684 \| good	35.071 \| good	30.924 \| good	0.208 \| good	5.613 \| good	0.206 \| good
2026-03-07T05:00:00.000Z	49 \| good	8.838 \| good	32.095 \| good	31.408 \| good	0.407 \| good	5.228 \| good	0.192 \| good
2026-03-07T06:00:00.000Z	33 \| good	6.418 \| good	22.884 \| good	28.574 \| good	0.256 \| good	5.684 \| good	0.192 \| good
2026-03-07T07:00:00.000Z	49 \| good	9.095 \| good	25.546 \| good	31.212 \| good	0.214 \| good	4.815 \| good	0.192 \| good
2026-03-07T08:00:00.000Z	38 \| good	7.15 \| good	22.867 \| good	29.253 \| good	0.237 \| good	5.01 \| good	0.192 \| good
2026-03-07T09:00:00.000Z	27 \| good	4.569 \| good	16.594 \| good	29.41 \| good	0.345 \| good	5.02 \| good	0.152 \| good
2026-03-07T10:00:00.000Z	29 \| good	4.115 \| good	14.92 \| good	30.912 \| good	0.24 \| good	6.009 \| good	0.158 \| good
2026-03-07T11:00:00.000Z	25 \| good	3.863 \| good	18.741 \| good	27.125 \| good	0.27 \| good	7.723 \| good	0.158 \| good
2026-03-07T12:00:00.000Z	25 \| good	3.085 \| good	10.737 \| good	26.557 \| good	0.242 \| good	7.546 \| good	0.176 \| good
2026-03-07T13:00:00.000Z	22 \| good	3.238 \| good	14.863 \| good	24.328 \| good	0.247 \| good	9.429 \| good	0.176 \| good
2026-03-07T14:00:00.000Z	24 \| good	3.284 \| good	17.548 \| good	26.285 \| good	0.194 \| good	10.63 \| good	0.215 \| good
2026-03-07T15:00:00.000Z	23 \| good	3.266 \| good	13.162 \| good	25.244 \| good	0.197 \| good	8.531 \| good	0.215 \| good
2026-03-07T16:00:00.000Z	25 \| good	3.086 \| good	18.247 \| good	26.75 \| good	0.252 \| good	8.53 \| good	0.215 \| good
2026-03-07T17:00:00.000Z	24 \| good	3.672 \| good	20.697 \| good	26.081 \| good	0.269 \| good	7.485 \| good	0.215 \| good
2026-03-07T18:00:00.000Z	27 \| good	3.219 \| good	18.672 \| good	29.181 \| good	0.262 \| good	6.491 \| good	0.249 \| good
2026-03-07T19:00:00.000Z	25 \| good	4.046 \| good	27.408 \| good	25.151 \| good	0.213 \| good	6.316 \| good	0.249 \| good
2026-03-07T20:00:00.000Z	33 \| good	6.242 \| good	22.982 \| good	26.517 \| good	0.304 \| good	6.325 \| good	0.249 \| good
2026-03-07T21:00:00.000Z	38 \| good	7.118 \| good	24.143 \| good	24.253 \| good	0.271 \| good	6.191 \| good	0.249 \| good
2026-03-07T22:00:00.000Z	38 \| good	6.753 \| good	27.425 \| good	27.498 \| good	0.254 \| good	5.03 \| good	0.197 \| good
2026-03-07T23:00:00.000Z	49 \| good	8.888 \| good	33.609 \| good	25.815 \| good	0.316 \| good	5.656 \| good	0.22 \| good
2026-03-08T00:00:00.000Z	52 \| moderate	9.537 \| good	47.999 \| good	26.209 \| good	0.299 \| good	7.174 \| good	0.284 \| good
2026-03-08T01:00:00.000Z	54 \| moderate	10.564 \| good	50.056 \| good	24.957 \| good	0.283 \| good	12.22 \| good	0.358 \| good
2026-03-08T02:00:00.000Z	38 \| good	6.878 \| good	34.148 \| good	16.694 \| good	0.242 \| good	17.778 \| good	0.402 \| good
2026-03-08T03:00:00.000Z	44 \| good	7.978 \| good	34.777 \| good	21.467 \| good	1.247 \| good	5.63 \| good	0.132 \| good
2026-03-08T04:00:00.000Z	49 \| good	8.508 \| good	36.468 \| good	17.55 \| good	0.24 \| good	12.839 \| good	0.355 \| good
2026-03-08T05:00:00.000Z	58 \| moderate	10.583 \| good	70.145 \| fine	11.057 \| good	0.257 \| good	15.177 \| good	0.396 \| good
2026-03-08T06:00:00.000Z	54 \| moderate	11.217 \| good	50.889 \| good	6.576 \| good	0.22 \| good	17.132 \| good	0.485 \| good
2026-03-08T07:00:00.000Z	52 \| moderate	9.551 \| good	47.209 \| good	6.043 \| good	0.238 \| good	16.513 \| good	0.518 \| good
2026-03-08T08:00:00.000Z	54 \| moderate	11.135 \| good	44.338 \| good	8.3 \| good	0.293 \| good	18.93 \| good	0.46 \| good
2026-03-08T09:00:00.000Z	49 \| good	9.458 \| good	40.629 \| good	6.562 \| good	0.317 \| good	13.642 \| good	0.392 \| good
2026-03-08T10:00:00.000Z	49 \| good	8.921 \| good	48.463 \| good	5.885 \| good	0.343 \| good	11.52 \| good	0.332 \| good
2026-03-08T11:00:00.000Z	58 \| moderate	12.869 \| fine	53.352 \| good	13.909 \| good	0.405 \| good	8.171 \| good	0.291 \| good
2026-03-08T12:00:00.000Z	56 \| moderate	11.695 \| good	48.527 \| good	12.877 \| good	0.414 \| good	9.63 \| good	0.275 \| good
2026-03-08T13:00:00.000Z	44 \| good	8.308 \| good	37.519 \| good	13.064 \| good	0.423 \| good	13.287 \| good	0.275 \| good
2026-03-08T13:00:00.000Z	44 \| good	8.308 \| good	37.519 \| good	13.064 \| good	0.423 \| good	13.287 \| good	0.275 \| good
2026-03-08T14:00:00.000Z	19 \| good	2.796 \| good	11.416 \| good	20.777 \| good	1.289 \| good	8.178 \| good	0.155 \| good
2026-03-08T15:00:00.000Z	19 \| good	3.464 \| good	15.141 \| good	21.28 \| good	1.354 \| good	9.387 \| good	0.168 \| good
2026-03-08T16:00:00.000Z	26 \| good	3.609 \| good	15.574 \| good	28.074 \| good	1.349 \| good	7.717 \| good	0.159 \| good
2026-03-08T17:00:00.000Z	30 \| good	3.272 \| good	14.352 \| good	31.649 \| good	1.343 \| good	6.048 \| good	0.15 \| good
2026-03-08T18:00:00.000Z	29 \| good	2.994 \| good	12.149 \| good	31.13 \| good	1.338 \| good	4.378 \| good	0.141 \| good
2026-03-08T19:00:00.000Z	32 \| good	4.509 \| good	19.438 \| good	34.858 \| good	1.242 \| good	4.238 \| good	0.139 \| good
2026-03-08T20:00:00.000Z	35 \| good	4.059 \| good	17.697 \| good	37.603 \| good	1.146 \| good	4.097 \| good	0.137 \| good
2026-03-08T21:00:00.000Z	36 \| good	4.212 \| good	18.619 \| good	39.487 \| good	1.05 \| good	3.957 \| good	0.135 \| good
2026-03-08T22:00:00.000Z	35 \| good	1.699 \| good	7.104 \| good	38.13 \| good	1.238 \| good	6.393 \| good	0.154 \| good
2026-03-08T23:00:00.000Z	34 \| good	4.474 \| good	19.381 \| good	36.72 \| good	1.427 \| good	8.829 \| good	0.173 \| good
2026-03-09T00:00:00.000Z	30 \| good	4.671 \| good	20.301 \| good	31.584 \| good	1.615 \| good	11.264 \| good	0.191 \| good
2026-03-09T01:00:00.000Z	38 \| good	7.154 \| good	31.702 \| good	24.97 \| good	1.849 \| good	11.971 \| good	0.197 \| good
2026-03-09T02:00:00.000Z	49 \| good	9.356 \| good	41.724 \| good	16.618 \| good	2.084 \| good	12.678 \| good	0.204 \| good
2026-03-09T03:00:00.000Z	52 \| moderate	10.303 \| good	45.787 \| good	13.404 \| good	2.319 \| good	13.384 \| good	0.21 \| good
2026-03-09T04:00:00.000Z	49 \| good	9.438 \| good	41.822 \| good	10.523 \| good	2.392 \| good	12.333 \| good	0.205 \| good
2026-03-09T05:00:00.000Z	49 \| good	8.69 \| good	38.121 \| good	9.314 \| good	2.466 \| good	11.281 \| good	0.201 \| good
2026-03-09T06:00:00.000Z	52 \| moderate	9.875 \| good	43.807 \| good	9.001 \| good	2.54 \| good	10.23 \| good	0.196 \| good
2026-03-09T07:00:00.000Z	52 \| moderate	10.003 \| good	44.498 \| good	10.96 \| good	2.649 \| good	9.471 \| good	0.191 \| good
2026-03-09T08:00:00.000Z	52 \| moderate	9.669 \| good	43.287 \| good	9.043 \| good	2.757 \| good	8.712 \| good	0.185 \| good
2026-03-09T09:00:00.000Z	49 \| good	8.587 \| good	37.705 \| good	9.697 \| good	2.866 \| good	7.954 \| good	0.18 \| good
2026-03-09T10:00:00.000Z	38 \| good	7.331 \| good	32.413 \| good	8.755 \| good	2.896 \| good	11.115 \| good	0.21 \| good
2026-03-09T11:00:00.000Z	38 \| good	7.493 \| good	33.03 \| good	6.237 \| good	2.926 \| good	14.277 \| good	0.24 \| good
2026-03-09T12:00:00.000Z	52 \| moderate	9.867 \| good	43.917 \| good	5.473 \| good	2.956 \| good	17.438 \| good	0.27 \| good
2026-03-09T13:00:00.000Z	52 \| moderate	9.794 \| good	43.552 \| good	10.57 \| good	3.094 \| good	14.864 \| good	0.261 \| good
2026-03-09T14:00:00.000Z	49 \| good	8.857 \| good	39.253 \| good	19.986 \| good	3.231 \| good	12.29 \| good	0.253 \| good
2026-03-09T15:00:00.000Z	44 \| good	8.166 \| good	35.762 \| good	28.913 \| good	3.368 \| good	9.716 \| good	0.244 \| good
2026-03-09T16:00:00.000Z	33 \| good	6.198 \| good	27.398 \| good	36.055 \| good	3.128 \| good	7.705 \| good	0.222 \| good
2026-03-09T17:00:00.000Z	38 \| good	6.828 \| good	30.593 \| good	37.405 \| good	2.888 \| good	5.693 \| good	0.2 \| good
2026-03-09T18:00:00.000Z	36 \| good	6.436 \| good	28.356 \| good	38.926 \| good	2.648 \| good	3.682 \| good	0.178 \| good
2026-03-09T19:00:00.000Z	38 \| good	7.385 \| good	32.558 \| good	41.063 \| good	2.248 \| good	3.752 \| good	0.175 \| good
2026-03-09T20:00:00.000Z	44 \| good	7.573 \| good	33.384 \| good	41.288 \| good	1.848 \| good	3.823 \| good	0.173 \| good
2026-03-09T21:00:00.000Z	38 \| good	6.906 \| good	30.601 \| good	36.631 \| good	1.448 \| good	3.894 \| good	0.17 \| good
2026-03-09T22:00:00.000Z	31 \| good	5.07 \| good	21.793 \| good	34.061 \| good	1.351 \| good	7.609 \| good	0.193 \| good
2026-03-09T23:00:00.000Z	38 \| good	7.327 \| good	32.384 \| good	29.163 \| good	1.255 \| good	11.323 \| good	0.216 \| good
2026-03-10T00:00:00.000Z	38 \| good	7.327 \| good	32.368 \| good	26.081 \| good	1.159 \| good	15.038 \| good	0.239 \| good
2026-03-10T01:00:00.000Z	44 \| good	8.04 \| good	35.175 \| good	28.012 \| good	1.153 \| good	13.836 \| good	0.231 \| good
2026-03-10T02:00:00.000Z	49 \| good	8.886 \| good	39.315 \| good	27.837 \| good	1.147 \| good	12.633 \| good	0.223 \| good
2026-03-10T03:00:00.000Z	54 \| moderate	10.851 \| good	48.237 \| good	22.62 \| good	1.141 \| good	11.43 \| good	0.215 \| good
2026-03-10T04:00:00.000Z	54 \| moderate	11.485 \| good	50.789 \| good	16.305 \| good	1.22 \| good	11.107 \| good	0.212 \| good
2026-03-10T05:00:00.000Z	56 \| moderate	12.071 \| good	54.409 \| good	10.739 \| good	1.299 \| good	10.784 \| good	0.209 \| good
2026-03-10T06:00:00.000Z	64 \| moderate	15.765 \| fine	16.038 \| good	22.803 \| good	1.368 \| good	10.382 \| good	0.205 \| good
2026-03-10T07:00:00.000Z	56 \| moderate	12.248 \| fine	55.311 \| fine	7.351 \| good	1.51 \| good	11.365 \| good	0.209 \| good
2026-03-10T08:00:00.000Z	56 \| moderate	11.706 \| good	52.09 \| good	5.666 \| good	1.641 \| good	12.27 \| good	0.213 \| good
2026-03-10T09:00:00.000Z	52 \| moderate	10.484 \| good	46.366 \| good	4.406 \| good	1.773 \| good	13.175 \| good	0.216 \| good
2026-03-10T10:00:00.000Z	49 \| good	9.133 \| good	40.344 \| good	3.616 \| good	1.907 \| good	14.707 \| good	0.248 \| good
2026-03-10T11:00:00.000Z	49 \| good	8.943 \| good	39.617 \| good	2.651 \| good	2.042 \| good	16.238 \| good	0.28 \| good
2026-03-10T12:00:00.000Z	84 \| moderate	26.831 \| fine	27.233 \| good	10.811 \| good	2.159 \| good	17.622 \| good	0.31 \| good
2026-03-10T13:00:00.000Z	88 \| moderate	28.968 \| fine	29.329 \| good	15.742 \| good	2.376 \| good	15.876 \| good	0.3 \| good

Crofton

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Crofton, Maryland air quality map: Track AQI near you

0.25ppm

How accurate is Maryland, USA air quality data?

Air quality data and pollutant measurements for Maryland, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.

Source: Ambee Data Sources

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Frequently asked questions

How often is the air quality data for Crofton, Maryland updated?

The air quality for Crofton, Maryland is updated every hour.

When was the worst air quality at Crofton, Maryland in the last 24 hrs?

The worst air quality in Crofton, Maryland in the last 24 hours was observed at 11:00:00 on 2026-03-08.

When was the best air quality at Crofton, Maryland in the last 24 hrs?

In the last 24 hrs, the best air quality in Crofton, Maryland was observed at 01:00:00 on 2026-03-07.

What is the current air quality in Crofton, Maryland?

The current air quality in Crofton, Maryland is 44, categorized as Good based on real-time data.

What pollutant is the most common in Crofton, Maryland?

The most common pollutant in Crofton, Maryland is PM2.5.

What should I do if the air quality in Crofton, Maryland is poor?

If the air quality in Crofton, Maryland is poor, consider staying indoors and wearing a mask to protect yourself.

What is the current concentration of PM_2.5 in Crofton, Maryland?

The current PM_2.5 concentration at Crofton, Maryland is 8.308 μg/m³.

What is the current concentration of PM₁₀ in Crofton, Maryland?

The current PM₁₀ concentration at Crofton, Maryland is 37.519 μg/m³.

What is the current concentration of carbon monoxide (CO) in Crofton, Maryland?

The current carbon monoxide (CO) concentration at Crofton, Maryland is 0.275 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Crofton, Maryland?

The current sulfur dioxide (SO₂) concentration at Crofton, Maryland is 0.423 ppb.

What is the current concentration of ozone (O₃) in Crofton, Maryland?

The current ozone (O₃) concentration at Crofton, Maryland is 13.064 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Crofton, Maryland?

The current nitrogen dioxide (NO₂) concentration at Crofton, Maryland is 13.287 ppb.

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