What is the current concentration of PM10 in Langley Park, Maryland?

The current PM10 concentration at Langley Park, Maryland is 44.252 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Langley Park, Maryland is 0.608 ppb.

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

The current ozone (O3) concentration at Langley Park, Maryland is 21.297 ppm.

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

The current nitrogen dioxide (NO2) concentration at Langley Park, Maryland is 7.103 ppb.

Langley Park, Maryland live air quality index now

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

The current PM2.5 concentration at Langley Park, Maryland is 9.461 μg/m3.

Stay updated with real-time air quality in Langley Park, 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

Langley Park, Maryland

Last updated: ... (Local time)

Major air pollutants in Langley Park, Maryland

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

9.46 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

44.25 μg/m³

155

255

425

605+

Ozone (O₃)

21.30 ppb

201

201+

Sulfur Dioxide (SO₂)

0.61 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

7.10 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.40 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Langley Park, Maryland

Get Live Pollen Counts

Langley Park, Maryland

Scroll To Air Quality Map

Track live Langley Park, Maryland air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-07-09T12:00:00.000Z	44 \| good	8.302 \| good	38.195 \| good	26.89 \| good	0.588 \| good	4.161 \| good	0.328 \| good
2026-07-09T13:00:00.000Z	49 \| good	8.868 \| good	36.51 \| good	27.372 \| good	0.583 \| good	5.109 \| good	0.328 \| good
2026-07-09T14:00:00.000Z	44 \| good	7.832 \| good	34.564 \| good	27.818 \| good	0.588 \| good	4.877 \| good	0.296 \| good
2026-07-09T15:00:00.000Z	49 \| good	8.717 \| good	39.674 \| good	28.938 \| good	0.595 \| good	4.377 \| good	0.296 \| good
2026-07-09T16:00:00.000Z	44 \| good	7.792 \| good	34.435 \| good	29.925 \| good	0.532 \| good	3.425 \| good	0.296 \| good
2026-07-09T17:00:00.000Z	38 \| good	7.309 \| good	35.298 \| good	31.29 \| good	0.543 \| good	2.959 \| good	0.259 \| good
2026-07-09T18:00:00.000Z	49 \| good	8.745 \| good	40.362 \| good	36.647 \| good	0.598 \| good	3.052 \| good	0.273 \| good
2026-07-09T19:00:00.000Z	49 \| good	8.932 \| good	35.485 \| good	43.173 \| good	0.589 \| good	2.937 \| good	0.305 \| good
2026-07-09T20:00:00.000Z	52 \| moderate	9.629 \| good	40.67 \| good	45.79 \| good	0.536 \| good	3.022 \| good	0.299 \| good
2026-07-09T21:00:00.000Z	44 \| good	7.628 \| good	35.831 \| good	47.158 \| good	0.578 \| good	2.967 \| good	0.291 \| good
2026-07-09T22:00:00.000Z	42 \| good	3.869 \| good	20.309 \| good	44.904 \| good	0.548 \| good	3.942 \| good	0.291 \| good
2026-07-09T23:00:00.000Z	41 \| good	3.47 \| good	12.406 \| good	43.863 \| good	0.589 \| good	3.675 \| good	0.331 \| good
2026-07-10T00:00:00.000Z	37 \| good	3.437 \| good	18.245 \| good	39.86 \| good	0.573 \| good	4.544 \| good	0.341 \| good
2026-07-10T01:00:00.000Z	33 \| good	3.255 \| good	15.518 \| good	36.468 \| good	0.525 \| good	5.289 \| good	0.378 \| good
2026-07-10T02:00:00.000Z	33 \| good	5.999 \| good	26.116 \| good	34.812 \| good	0.536 \| good	6.488 \| good	0.417 \| good
2026-07-10T03:00:00.000Z	29 \| good	3.982 \| good	18.465 \| good	31.457 \| good	0.541 \| good	6.177 \| good	0.404 \| good
2026-07-10T04:00:00.000Z	27 \| good	4.993 \| good	26.457 \| good	28.081 \| good	0.529 \| good	6.069 \| good	0.404 \| good
2026-07-10T05:00:00.000Z	33 \| good	5.502 \| good	21.606 \| good	25.082 \| good	0.576 \| good	6.959 \| good	0.417 \| good
2026-07-10T06:00:00.000Z	33 \| good	5.775 \| good	26.974 \| good	22.23 \| good	0.54 \| good	7.646 \| good	0.417 \| good
2026-07-10T07:00:00.000Z	27 \| good	5.499 \| good	26.065 \| good	22.028 \| good	0.565 \| good	6.138 \| good	0.385 \| good
2026-07-10T08:00:00.000Z	27 \| good	5.148 \| good	22.015 \| good	19.82 \| good	0.569 \| good	5.607 \| good	0.304 \| good
2026-07-10T09:00:00.000Z	27 \| good	4.984 \| good	19.982 \| good	22.229 \| good	0.622 \| good	4.351 \| good	0.296 \| good
2026-07-10T10:00:00.000Z	33 \| good	6.013 \| good	26.003 \| good	24.23 \| good	0.522 \| good	3.3 \| good	0.299 \| good
2026-07-10T11:00:00.000Z	33 \| good	5.881 \| good	24.006 \| good	25.012 \| good	0.519 \| good	3.533 \| good	0.252 \| good
2026-07-10T12:00:00.000Z	33 \| good	6.343 \| good	32.182 \| good	25.983 \| good	0.565 \| good	4.304 \| good	0.347 \| good
2026-07-10T13:00:00.000Z	49 \| good	8.744 \| good	41.781 \| good	28.665 \| good	0.564 \| good	5.501 \| good	0.315 \| good
2026-07-10T14:00:00.000Z	52 \| moderate	10.132 \| good	45.369 \| good	33.848 \| good	0.573 \| good	4.671 \| good	0.31 \| good
2026-07-10T15:00:00.000Z	56 \| moderate	11.554 \| good	49.323 \| good	38.121 \| good	0.623 \| good	3.312 \| good	0.299 \| good
2026-07-10T16:00:00.000Z	58 \| moderate	12.748 \| fine	54.626 \| good	42.475 \| good	0.636 \| good	2.885 \| good	0.31 \| good
2026-07-10T17:00:00.000Z	62 \| moderate	14.807 \| fine	66.829 \| fine	46.267 \| good	0.649 \| good	2.384 \| good	0.299 \| good
2026-07-10T18:00:00.000Z	60 \| moderate	14.198 \| fine	59.302 \| fine	49.106 \| good	0.649 \| good	2.785 \| good	0.299 \| good
2026-07-10T19:00:00.000Z	58 \| moderate	13.109 \| fine	63.184 \| fine	49.599 \| good	0.596 \| good	2.421 \| good	0.299 \| good
2026-07-10T20:00:00.000Z	66 \| moderate	16.733 \| fine	69.052 \| fine	50.453 \| good	0.633 \| good	3.083 \| good	0.299 \| good
2026-07-10T21:00:00.000Z	62 \| moderate	14.729 \| fine	52.512 \| good	49.892 \| good	0.6 \| good	3.638 \| good	0.299 \| good
2026-07-10T22:00:00.000Z	62 \| moderate	14.968 \| fine	61.003 \| fine	46.312 \| good	0.601 \| good	5.2 \| good	0.299 \| good
2026-07-10T23:00:00.000Z	67 \| moderate	17.717 \| fine	78.038 \| fine	50.396 \| good	0.635 \| good	4.29 \| good	0.331 \| good
2026-07-11T00:00:00.000Z	64 \| moderate	16.154 \| fine	72.59 \| fine	48.95 \| good	0.611 \| good	4.387 \| good	0.331 \| good
2026-07-11T01:00:00.000Z	54 \| moderate	10.814 \| good	45.75 \| good	47.232 \| good	0.545 \| good	2.743 \| good	0.336 \| good
2026-07-11T02:00:00.000Z	49 \| good	9.2 \| good	37.537 \| good	45.359 \| good	0.545 \| good	5.395 \| good	0.331 \| good
2026-07-11T03:00:00.000Z	60 \| moderate	13.919 \| fine	62.514 \| fine	21.295 \| good	0.759 \| good	9.5 \| good	0.251 \| good
2026-07-11T04:00:00.000Z	49 \| good	9.098 \| good	36.141 \| good	37.177 \| good	0.615 \| good	7.633 \| good	0.417 \| good
2026-07-11T05:00:00.000Z	54 \| moderate	11.107 \| good	42.793 \| good	33.265 \| good	0.6 \| good	8.498 \| good	0.412 \| good
2026-07-11T06:00:00.000Z	52 \| moderate	9.552 \| good	35.787 \| good	31.871 \| good	0.611 \| good	7.759 \| good	0.373 \| good
2026-07-11T07:00:00.000Z	49 \| good	8.961 \| good	34.828 \| good	27.365 \| good	0.61 \| good	7.568 \| good	0.499 \| good
2026-07-11T08:00:00.000Z	52 \| moderate	10.135 \| good	45.265 \| good	24.161 \| good	0.535 \| good	8.317 \| good	0.436 \| good
2026-07-11T09:00:00.000Z	52 \| moderate	10.086 \| good	39.686 \| good	22.836 \| good	0.574 \| good	8.162 \| good	0.415 \| good
2026-07-11T10:00:00.000Z	54 \| moderate	10.889 \| good	53.824 \| good	21.291 \| good	0.632 \| good	7.744 \| good	0.436 \| good
2026-07-11T11:00:00.000Z	49 \| good	9.461 \| good	44.252 \| good	21.297 \| good	0.608 \| good	7.103 \| good	0.404 \| good
2026-07-11T11:00:00.000Z	49 \| good	9.461 \| good	44.252 \| good	21.297 \| good	0.608 \| good	7.103 \| good	0.404 \| good
2026-07-11T12:00:00.000Z	66 \| moderate	17.209 \| fine	76.042 \| fine	24.278 \| good	0.693 \| good	6.392 \| good	0.245 \| good
2026-07-11T13:00:00.000Z	67 \| moderate	17.508 \| fine	77.416 \| fine	36.792 \| good	0.814 \| good	3.676 \| good	0.226 \| good
2026-07-11T14:00:00.000Z	60 \| moderate	14.249 \| fine	63.725 \| fine	41.324 \| good	0.782 \| good	2.01 \| good	0.211 \| good
2026-07-11T15:00:00.000Z	58 \| moderate	12.783 \| fine	57.732 \| fine	43.746 \| good	0.727 \| good	1.402 \| good	0.204 \| good
2026-07-11T16:00:00.000Z	54 \| moderate	11.191 \| good	49.505 \| good	43.306 \| good	0.685 \| good	1.093 \| good	0.201 \| good
2026-07-11T17:00:00.000Z	38 \| good	7.452 \| good	32.897 \| good	37.648 \| good	0.61 \| good	1.004 \| good	0.195 \| good
2026-07-11T18:00:00.000Z	33 \| good	5.915 \| good	26.122 \| good	32.292 \| good	0.52 \| good	1.064 \| good	0.19 \| good
2026-07-11T19:00:00.000Z	32 \| good	3.91 \| good	17.258 \| good	34.636 \| good	0.486 \| good	1.263 \| good	0.186 \| good
2026-07-11T20:00:00.000Z	37 \| good	5.209 \| good	22.434 \| good	40.277 \| good	0.448 \| good	1.51 \| good	0.184 \| good
2026-07-11T21:00:00.000Z	34 \| good	5.172 \| good	22.37 \| good	36.991 \| good	0.446 \| good	1.964 \| good	0.187 \| good
2026-07-11T22:00:00.000Z	31 \| good	4.289 \| good	18.754 \| good	34.063 \| good	0.472 \| good	2.949 \| good	0.198 \| good
2026-07-11T23:00:00.000Z	33 \| good	6.21 \| good	27.517 \| good	33.984 \| good	0.496 \| good	4.271 \| good	0.209 \| good
2026-07-12T00:00:00.000Z	38 \| good	6.703 \| good	29.794 \| good	35.984 \| good	0.474 \| good	5.715 \| good	0.215 \| good
2026-07-12T01:00:00.000Z	49 \| good	9.207 \| good	41.03 \| good	34.304 \| good	0.501 \| good	5.737 \| good	0.204 \| good
2026-07-12T02:00:00.000Z	49 \| good	9.193 \| good	41.065 \| good	29.971 \| good	0.541 \| good	6.188 \| good	0.2 \| good
2026-07-12T03:00:00.000Z	54 \| moderate	11.142 \| good	49.335 \| good	28.238 \| good	0.579 \| good	7.379 \| good	0.204 \| good
2026-07-12T04:00:00.000Z	58 \| moderate	12.513 \| fine	56.126 \| fine	32.334 \| good	0.603 \| good	7.157 \| good	0.203 \| good
2026-07-12T05:00:00.000Z	54 \| moderate	11.1 \| good	49.275 \| good	29.911 \| good	0.633 \| good	6.554 \| good	0.202 \| good
2026-07-12T06:00:00.000Z	49 \| good	9.097 \| good	40.518 \| good	28.872 \| good	0.672 \| good	6.152 \| good	0.202 \| good
2026-07-12T07:00:00.000Z	44 \| good	8.435 \| good	36.95 \| good	24.456 \| good	0.709 \| good	5.867 \| good	0.201 \| good
2026-07-12T08:00:00.000Z	49 \| good	8.937 \| good	39.53 \| good	21.153 \| good	0.752 \| good	5.615 \| good	0.201 \| good
2026-07-12T09:00:00.000Z	54 \| moderate	10.667 \| good	47.055 \| good	17.552 \| good	0.786 \| good	5.494 \| good	0.2 \| good
2026-07-12T10:00:00.000Z	54 \| moderate	10.69 \| good	47.203 \| good	18.431 \| good	0.806 \| good	5.572 \| good	0.199 \| good
2026-07-12T11:00:00.000Z	52 \| moderate	10.412 \| good	46.227 \| good	17.175 \| good	0.794 \| good	5.243 \| good	0.196 \| good
2026-07-12T12:00:00.000Z	56 \| moderate	11.566 \| good	51.107 \| good	19.672 \| good	0.811 \| good	4.759 \| good	0.192 \| good
2026-07-12T13:00:00.000Z	58 \| moderate	13.093 \| fine	58.688 \| fine	24.698 \| good	0.778 \| good	3.928 \| good	0.184 \| good
2026-07-12T14:00:00.000Z	54 \| moderate	11.335 \| good	50.039 \| good	32.747 \| good	0.683 \| good	2.784 \| good	0.174 \| good
2026-07-12T15:00:00.000Z	52 \| moderate	10.455 \| good	46.398 \| good	43.931 \| good	0.569 \| good	1.731 \| good	0.165 \| good
2026-07-12T16:00:00.000Z	52 \| moderate	9.822 \| good	43.859 \| good	47.804 \| good	0.475 \| good	1.116 \| good	0.156 \| good
2026-07-12T17:00:00.000Z	49 \| good	9.354 \| good	41.757 \| good	51.362 \| good	0.402 \| good	0.835 \| good	0.149 \| good
2026-07-12T18:00:00.000Z	49 \| good	8.83 \| good	38.953 \| good	53.101 \| good	0.344 \| good	0.705 \| good	0.144 \| good
2026-07-12T19:00:00.000Z	50 \| good	7.296 \| good	32.318 \| good	54.029 \| good	0.303 \| good	0.678 \| good	0.14 \| good
2026-07-12T20:00:00.000Z	50 \| good	6.549 \| good	29.311 \| good	53.739 \| good	0.272 \| good	0.684 \| good	0.138 \| good
2026-07-12T21:00:00.000Z	45 \| good	6.953 \| good	30.849 \| good	48.616 \| good	0.253 \| good	0.749 \| good	0.136 \| good
2026-07-12T22:00:00.000Z	38 \| good	7.194 \| good	31.711 \| good	39.583 \| good	0.244 \| good	0.967 \| good	0.136 \| good
2026-07-12T23:00:00.000Z	52 \| moderate	9.941 \| good	44.182 \| good	31.615 \| good	0.242 \| good	1.503 \| good	0.138 \| good
2026-07-13T00:00:00.000Z	54 \| moderate	11.235 \| good	49.712 \| good	29.158 \| good	0.274 \| good	3.334 \| good	0.148 \| good
2026-07-13T01:00:00.000Z	52 \| moderate	10.15 \| good	45.151 \| good	27.35 \| good	0.333 \| good	6.077 \| good	0.164 \| good
2026-07-13T02:00:00.000Z	44 \| good	7.905 \| good	34.557 \| good	25.03 \| good	0.368 \| good	7.037 \| good	0.168 \| good
2026-07-13T03:00:00.000Z	44 \| good	8.106 \| good	35.716 \| good	20.314 \| good	0.39 \| good	7.829 \| good	0.17 \| good
2026-07-13T04:00:00.000Z	49 \| good	8.865 \| good	39.023 \| good	17.581 \| good	0.4 \| good	8.571 \| good	0.175 \| good
2026-07-13T05:00:00.000Z	49 \| good	8.792 \| good	38.515 \| good	14.52 \| good	0.392 \| good	8.502 \| good	0.176 \| good
2026-07-13T06:00:00.000Z	54 \| moderate	11.361 \| good	13.35 \| good	23.437 \| good	0.387 \| good	8.415 \| good	0.174 \| good
2026-07-13T07:00:00.000Z	49 \| good	8.947 \| good	39.696 \| good	10.859 \| good	0.404 \| good	8.687 \| good	0.173 \| good
2026-07-13T08:00:00.000Z	52 \| moderate	9.949 \| good	43.927 \| good	11.313 \| good	0.426 \| good	9.262 \| good	0.173 \| good
2026-07-13T09:00:00.000Z	52 \| moderate	10.285 \| good	45.621 \| good	11.173 \| good	0.45 \| good	9.958 \| good	0.174 \| good
2026-07-13T10:00:00.000Z	54 \| moderate	11.437 \| good	50.778 \| good	10.546 \| good	0.479 \| good	10.572 \| good	0.176 \| good
2026-07-13T11:00:00.000Z	52 \| moderate	10.453 \| good	46.268 \| good	8.836 \| good	0.502 \| good	10.502 \| good	0.181 \| good

Langley Park

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Langley Park, Maryland air quality map: Track AQI near you

0.51ppm

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 Langley Park, Maryland updated?

The air quality for Langley Park, Maryland is updated every hour.

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

The worst air quality in Langley Park, Maryland in the last 24 hours was observed at 11:00:00 on 2026-07-10.

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

In the last 24 hrs, the best air quality in Langley Park, Maryland was observed at 12:00:00 on 2026-07-10.

What is the current air quality in Langley Park, Maryland?

The current air quality in Langley Park, Maryland is 49, categorized as Good based on real-time data.

What pollutant is the most common in Langley Park, Maryland?

The most common pollutant in Langley Park, Maryland is PM2.5.

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

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

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

The current PM_2.5 concentration at Langley Park, Maryland is 9.461 μg/m³.

What is the current concentration of PM₁₀ in Langley Park, Maryland?

The current PM₁₀ concentration at Langley Park, Maryland is 44.252 μg/m³.

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

The current carbon monoxide (CO) concentration at Langley Park, Maryland is 0.404 ppm.

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

The current sulfur dioxide (SO₂) concentration at Langley Park, Maryland is 0.608 ppb.

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

The current ozone (O₃) concentration at Langley Park, Maryland is 21.297 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Langley Park, Maryland is 7.103 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-07-09T12:00:00.000Z	44 \| good	8.302 \| good	38.195 \| good	26.89 \| good	0.588 \| good	4.161 \| good	0.328 \| good
2026-07-09T13:00:00.000Z	49 \| good	8.868 \| good	36.51 \| good	27.372 \| good	0.583 \| good	5.109 \| good	0.328 \| good
2026-07-09T14:00:00.000Z	44 \| good	7.832 \| good	34.564 \| good	27.818 \| good	0.588 \| good	4.877 \| good	0.296 \| good
2026-07-09T15:00:00.000Z	49 \| good	8.717 \| good	39.674 \| good	28.938 \| good	0.595 \| good	4.377 \| good	0.296 \| good
2026-07-09T16:00:00.000Z	44 \| good	7.792 \| good	34.435 \| good	29.925 \| good	0.532 \| good	3.425 \| good	0.296 \| good
2026-07-09T17:00:00.000Z	38 \| good	7.309 \| good	35.298 \| good	31.29 \| good	0.543 \| good	2.959 \| good	0.259 \| good
2026-07-09T18:00:00.000Z	49 \| good	8.745 \| good	40.362 \| good	36.647 \| good	0.598 \| good	3.052 \| good	0.273 \| good
2026-07-09T19:00:00.000Z	49 \| good	8.932 \| good	35.485 \| good	43.173 \| good	0.589 \| good	2.937 \| good	0.305 \| good
2026-07-09T20:00:00.000Z	52 \| moderate	9.629 \| good	40.67 \| good	45.79 \| good	0.536 \| good	3.022 \| good	0.299 \| good
2026-07-09T21:00:00.000Z	44 \| good	7.628 \| good	35.831 \| good	47.158 \| good	0.578 \| good	2.967 \| good	0.291 \| good
2026-07-09T22:00:00.000Z	42 \| good	3.869 \| good	20.309 \| good	44.904 \| good	0.548 \| good	3.942 \| good	0.291 \| good
2026-07-09T23:00:00.000Z	41 \| good	3.47 \| good	12.406 \| good	43.863 \| good	0.589 \| good	3.675 \| good	0.331 \| good
2026-07-10T00:00:00.000Z	37 \| good	3.437 \| good	18.245 \| good	39.86 \| good	0.573 \| good	4.544 \| good	0.341 \| good
2026-07-10T01:00:00.000Z	33 \| good	3.255 \| good	15.518 \| good	36.468 \| good	0.525 \| good	5.289 \| good	0.378 \| good
2026-07-10T02:00:00.000Z	33 \| good	5.999 \| good	26.116 \| good	34.812 \| good	0.536 \| good	6.488 \| good	0.417 \| good
2026-07-10T03:00:00.000Z	29 \| good	3.982 \| good	18.465 \| good	31.457 \| good	0.541 \| good	6.177 \| good	0.404 \| good
2026-07-10T04:00:00.000Z	27 \| good	4.993 \| good	26.457 \| good	28.081 \| good	0.529 \| good	6.069 \| good	0.404 \| good
2026-07-10T05:00:00.000Z	33 \| good	5.502 \| good	21.606 \| good	25.082 \| good	0.576 \| good	6.959 \| good	0.417 \| good
2026-07-10T06:00:00.000Z	33 \| good	5.775 \| good	26.974 \| good	22.23 \| good	0.54 \| good	7.646 \| good	0.417 \| good
2026-07-10T07:00:00.000Z	27 \| good	5.499 \| good	26.065 \| good	22.028 \| good	0.565 \| good	6.138 \| good	0.385 \| good
2026-07-10T08:00:00.000Z	27 \| good	5.148 \| good	22.015 \| good	19.82 \| good	0.569 \| good	5.607 \| good	0.304 \| good
2026-07-10T09:00:00.000Z	27 \| good	4.984 \| good	19.982 \| good	22.229 \| good	0.622 \| good	4.351 \| good	0.296 \| good
2026-07-10T10:00:00.000Z	33 \| good	6.013 \| good	26.003 \| good	24.23 \| good	0.522 \| good	3.3 \| good	0.299 \| good
2026-07-10T11:00:00.000Z	33 \| good	5.881 \| good	24.006 \| good	25.012 \| good	0.519 \| good	3.533 \| good	0.252 \| good
2026-07-10T12:00:00.000Z	33 \| good	6.343 \| good	32.182 \| good	25.983 \| good	0.565 \| good	4.304 \| good	0.347 \| good
2026-07-10T13:00:00.000Z	49 \| good	8.744 \| good	41.781 \| good	28.665 \| good	0.564 \| good	5.501 \| good	0.315 \| good
2026-07-10T14:00:00.000Z	52 \| moderate	10.132 \| good	45.369 \| good	33.848 \| good	0.573 \| good	4.671 \| good	0.31 \| good
2026-07-10T15:00:00.000Z	56 \| moderate	11.554 \| good	49.323 \| good	38.121 \| good	0.623 \| good	3.312 \| good	0.299 \| good
2026-07-10T16:00:00.000Z	58 \| moderate	12.748 \| fine	54.626 \| good	42.475 \| good	0.636 \| good	2.885 \| good	0.31 \| good
2026-07-10T17:00:00.000Z	62 \| moderate	14.807 \| fine	66.829 \| fine	46.267 \| good	0.649 \| good	2.384 \| good	0.299 \| good
2026-07-10T18:00:00.000Z	60 \| moderate	14.198 \| fine	59.302 \| fine	49.106 \| good	0.649 \| good	2.785 \| good	0.299 \| good
2026-07-10T19:00:00.000Z	58 \| moderate	13.109 \| fine	63.184 \| fine	49.599 \| good	0.596 \| good	2.421 \| good	0.299 \| good
2026-07-10T20:00:00.000Z	66 \| moderate	16.733 \| fine	69.052 \| fine	50.453 \| good	0.633 \| good	3.083 \| good	0.299 \| good
2026-07-10T21:00:00.000Z	62 \| moderate	14.729 \| fine	52.512 \| good	49.892 \| good	0.6 \| good	3.638 \| good	0.299 \| good
2026-07-10T22:00:00.000Z	62 \| moderate	14.968 \| fine	61.003 \| fine	46.312 \| good	0.601 \| good	5.2 \| good	0.299 \| good
2026-07-10T23:00:00.000Z	67 \| moderate	17.717 \| fine	78.038 \| fine	50.396 \| good	0.635 \| good	4.29 \| good	0.331 \| good
2026-07-11T00:00:00.000Z	64 \| moderate	16.154 \| fine	72.59 \| fine	48.95 \| good	0.611 \| good	4.387 \| good	0.331 \| good
2026-07-11T01:00:00.000Z	54 \| moderate	10.814 \| good	45.75 \| good	47.232 \| good	0.545 \| good	2.743 \| good	0.336 \| good
2026-07-11T02:00:00.000Z	49 \| good	9.2 \| good	37.537 \| good	45.359 \| good	0.545 \| good	5.395 \| good	0.331 \| good
2026-07-11T03:00:00.000Z	60 \| moderate	13.919 \| fine	62.514 \| fine	21.295 \| good	0.759 \| good	9.5 \| good	0.251 \| good
2026-07-11T04:00:00.000Z	49 \| good	9.098 \| good	36.141 \| good	37.177 \| good	0.615 \| good	7.633 \| good	0.417 \| good
2026-07-11T05:00:00.000Z	54 \| moderate	11.107 \| good	42.793 \| good	33.265 \| good	0.6 \| good	8.498 \| good	0.412 \| good
2026-07-11T06:00:00.000Z	52 \| moderate	9.552 \| good	35.787 \| good	31.871 \| good	0.611 \| good	7.759 \| good	0.373 \| good
2026-07-11T07:00:00.000Z	49 \| good	8.961 \| good	34.828 \| good	27.365 \| good	0.61 \| good	7.568 \| good	0.499 \| good
2026-07-11T08:00:00.000Z	52 \| moderate	10.135 \| good	45.265 \| good	24.161 \| good	0.535 \| good	8.317 \| good	0.436 \| good
2026-07-11T09:00:00.000Z	52 \| moderate	10.086 \| good	39.686 \| good	22.836 \| good	0.574 \| good	8.162 \| good	0.415 \| good
2026-07-11T10:00:00.000Z	54 \| moderate	10.889 \| good	53.824 \| good	21.291 \| good	0.632 \| good	7.744 \| good	0.436 \| good
2026-07-11T11:00:00.000Z	49 \| good	9.461 \| good	44.252 \| good	21.297 \| good	0.608 \| good	7.103 \| good	0.404 \| good
2026-07-11T11:00:00.000Z	49 \| good	9.461 \| good	44.252 \| good	21.297 \| good	0.608 \| good	7.103 \| good	0.404 \| good
2026-07-11T12:00:00.000Z	66 \| moderate	17.209 \| fine	76.042 \| fine	24.278 \| good	0.693 \| good	6.392 \| good	0.245 \| good
2026-07-11T13:00:00.000Z	67 \| moderate	17.508 \| fine	77.416 \| fine	36.792 \| good	0.814 \| good	3.676 \| good	0.226 \| good
2026-07-11T14:00:00.000Z	60 \| moderate	14.249 \| fine	63.725 \| fine	41.324 \| good	0.782 \| good	2.01 \| good	0.211 \| good
2026-07-11T15:00:00.000Z	58 \| moderate	12.783 \| fine	57.732 \| fine	43.746 \| good	0.727 \| good	1.402 \| good	0.204 \| good
2026-07-11T16:00:00.000Z	54 \| moderate	11.191 \| good	49.505 \| good	43.306 \| good	0.685 \| good	1.093 \| good	0.201 \| good
2026-07-11T17:00:00.000Z	38 \| good	7.452 \| good	32.897 \| good	37.648 \| good	0.61 \| good	1.004 \| good	0.195 \| good
2026-07-11T18:00:00.000Z	33 \| good	5.915 \| good	26.122 \| good	32.292 \| good	0.52 \| good	1.064 \| good	0.19 \| good
2026-07-11T19:00:00.000Z	32 \| good	3.91 \| good	17.258 \| good	34.636 \| good	0.486 \| good	1.263 \| good	0.186 \| good
2026-07-11T20:00:00.000Z	37 \| good	5.209 \| good	22.434 \| good	40.277 \| good	0.448 \| good	1.51 \| good	0.184 \| good
2026-07-11T21:00:00.000Z	34 \| good	5.172 \| good	22.37 \| good	36.991 \| good	0.446 \| good	1.964 \| good	0.187 \| good
2026-07-11T22:00:00.000Z	31 \| good	4.289 \| good	18.754 \| good	34.063 \| good	0.472 \| good	2.949 \| good	0.198 \| good
2026-07-11T23:00:00.000Z	33 \| good	6.21 \| good	27.517 \| good	33.984 \| good	0.496 \| good	4.271 \| good	0.209 \| good
2026-07-12T00:00:00.000Z	38 \| good	6.703 \| good	29.794 \| good	35.984 \| good	0.474 \| good	5.715 \| good	0.215 \| good
2026-07-12T01:00:00.000Z	49 \| good	9.207 \| good	41.03 \| good	34.304 \| good	0.501 \| good	5.737 \| good	0.204 \| good
2026-07-12T02:00:00.000Z	49 \| good	9.193 \| good	41.065 \| good	29.971 \| good	0.541 \| good	6.188 \| good	0.2 \| good
2026-07-12T03:00:00.000Z	54 \| moderate	11.142 \| good	49.335 \| good	28.238 \| good	0.579 \| good	7.379 \| good	0.204 \| good
2026-07-12T04:00:00.000Z	58 \| moderate	12.513 \| fine	56.126 \| fine	32.334 \| good	0.603 \| good	7.157 \| good	0.203 \| good
2026-07-12T05:00:00.000Z	54 \| moderate	11.1 \| good	49.275 \| good	29.911 \| good	0.633 \| good	6.554 \| good	0.202 \| good
2026-07-12T06:00:00.000Z	49 \| good	9.097 \| good	40.518 \| good	28.872 \| good	0.672 \| good	6.152 \| good	0.202 \| good
2026-07-12T07:00:00.000Z	44 \| good	8.435 \| good	36.95 \| good	24.456 \| good	0.709 \| good	5.867 \| good	0.201 \| good
2026-07-12T08:00:00.000Z	49 \| good	8.937 \| good	39.53 \| good	21.153 \| good	0.752 \| good	5.615 \| good	0.201 \| good
2026-07-12T09:00:00.000Z	54 \| moderate	10.667 \| good	47.055 \| good	17.552 \| good	0.786 \| good	5.494 \| good	0.2 \| good
2026-07-12T10:00:00.000Z	54 \| moderate	10.69 \| good	47.203 \| good	18.431 \| good	0.806 \| good	5.572 \| good	0.199 \| good
2026-07-12T11:00:00.000Z	52 \| moderate	10.412 \| good	46.227 \| good	17.175 \| good	0.794 \| good	5.243 \| good	0.196 \| good
2026-07-12T12:00:00.000Z	56 \| moderate	11.566 \| good	51.107 \| good	19.672 \| good	0.811 \| good	4.759 \| good	0.192 \| good
2026-07-12T13:00:00.000Z	58 \| moderate	13.093 \| fine	58.688 \| fine	24.698 \| good	0.778 \| good	3.928 \| good	0.184 \| good
2026-07-12T14:00:00.000Z	54 \| moderate	11.335 \| good	50.039 \| good	32.747 \| good	0.683 \| good	2.784 \| good	0.174 \| good
2026-07-12T15:00:00.000Z	52 \| moderate	10.455 \| good	46.398 \| good	43.931 \| good	0.569 \| good	1.731 \| good	0.165 \| good
2026-07-12T16:00:00.000Z	52 \| moderate	9.822 \| good	43.859 \| good	47.804 \| good	0.475 \| good	1.116 \| good	0.156 \| good
2026-07-12T17:00:00.000Z	49 \| good	9.354 \| good	41.757 \| good	51.362 \| good	0.402 \| good	0.835 \| good	0.149 \| good
2026-07-12T18:00:00.000Z	49 \| good	8.83 \| good	38.953 \| good	53.101 \| good	0.344 \| good	0.705 \| good	0.144 \| good
2026-07-12T19:00:00.000Z	50 \| good	7.296 \| good	32.318 \| good	54.029 \| good	0.303 \| good	0.678 \| good	0.14 \| good
2026-07-12T20:00:00.000Z	50 \| good	6.549 \| good	29.311 \| good	53.739 \| good	0.272 \| good	0.684 \| good	0.138 \| good
2026-07-12T21:00:00.000Z	45 \| good	6.953 \| good	30.849 \| good	48.616 \| good	0.253 \| good	0.749 \| good	0.136 \| good
2026-07-12T22:00:00.000Z	38 \| good	7.194 \| good	31.711 \| good	39.583 \| good	0.244 \| good	0.967 \| good	0.136 \| good
2026-07-12T23:00:00.000Z	52 \| moderate	9.941 \| good	44.182 \| good	31.615 \| good	0.242 \| good	1.503 \| good	0.138 \| good
2026-07-13T00:00:00.000Z	54 \| moderate	11.235 \| good	49.712 \| good	29.158 \| good	0.274 \| good	3.334 \| good	0.148 \| good
2026-07-13T01:00:00.000Z	52 \| moderate	10.15 \| good	45.151 \| good	27.35 \| good	0.333 \| good	6.077 \| good	0.164 \| good
2026-07-13T02:00:00.000Z	44 \| good	7.905 \| good	34.557 \| good	25.03 \| good	0.368 \| good	7.037 \| good	0.168 \| good
2026-07-13T03:00:00.000Z	44 \| good	8.106 \| good	35.716 \| good	20.314 \| good	0.39 \| good	7.829 \| good	0.17 \| good
2026-07-13T04:00:00.000Z	49 \| good	8.865 \| good	39.023 \| good	17.581 \| good	0.4 \| good	8.571 \| good	0.175 \| good
2026-07-13T05:00:00.000Z	49 \| good	8.792 \| good	38.515 \| good	14.52 \| good	0.392 \| good	8.502 \| good	0.176 \| good
2026-07-13T06:00:00.000Z	54 \| moderate	11.361 \| good	13.35 \| good	23.437 \| good	0.387 \| good	8.415 \| good	0.174 \| good
2026-07-13T07:00:00.000Z	49 \| good	8.947 \| good	39.696 \| good	10.859 \| good	0.404 \| good	8.687 \| good	0.173 \| good
2026-07-13T08:00:00.000Z	52 \| moderate	9.949 \| good	43.927 \| good	11.313 \| good	0.426 \| good	9.262 \| good	0.173 \| good
2026-07-13T09:00:00.000Z	52 \| moderate	10.285 \| good	45.621 \| good	11.173 \| good	0.45 \| good	9.958 \| good	0.174 \| good
2026-07-13T10:00:00.000Z	54 \| moderate	11.437 \| good	50.778 \| good	10.546 \| good	0.479 \| good	10.572 \| good	0.176 \| good
2026-07-13T11:00:00.000Z	52 \| moderate	10.453 \| good	46.268 \| good	8.836 \| good	0.502 \| good	10.502 \| good	0.181 \| good

Langley Park, Maryland live air quality index now

Major air pollutants in Langley Park, Maryland

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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Air quality in nearby cities

Adelphi, Maryland

Takoma Park, Maryland

Chillum, Maryland

College Park, Maryland

Silver Spring, Maryland

Hyattsville, Maryland

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Frequently asked questions

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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 current concentration of PM_2.5 in Langley Park, Maryland?

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

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

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