What are the current PM10 levels at Arnold, Maryland?

The current PM10 levels in Arnold, Maryland are 30.388 μg/m3.

What are the current sulfur dioxide (SO2) levels at Arnold, Maryland?

The current sulfur dioxide (SO2) levels in Arnold, Maryland are 0.498 ppb.

What are the current ozone (O3) levels at Arnold, Maryland?

The current ozone (O3) levels at Arnold, Maryland is 20.522 ppm.

What are the current nitrogen dioxide (NO2) levels at Arnold, Maryland?

The current nitrogen dioxide (NO2) levels at Arnold, Maryland is 20.395 ppb.

Real-time air quality index in Arnold, Maryland today

Q: What are the current PM2.5 levels in Arnold, Maryland?

The measured PM2.5 levels in Arnold, Maryland at present are 8.213 μg/m3.

Stay updated with real-time air quality in Arnold, 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

Arnold, Maryland

Last updated: ... (Local time)

Common air pollutants in Arnold, Maryland

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

8.21 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

30.39 μg/m³

155

255

425

605+

Ozone (O₃)

20.52 ppb

201

201+

Sulfur Dioxide (SO₂)

0.50 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

20.39 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.29 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Arnold, Maryland

Get Live Pollen Counts

Arnold, Maryland

Scroll To Air Quality Map

Track live Arnold, Maryland air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-01-21T11:00:00.000Z	27 \| good	5.239 \| good	21.688 \| good	17.294 \| good	0.951 \| good	22.909 \| good	0.443 \| good
2026-01-21T12:00:00.000Z	27 \| good	5.013 \| good	24.426 \| good	15.808 \| good	0.984 \| good	21.53 \| good	0.544 \| good
2026-01-21T13:00:00.000Z	27 \| good	4.615 \| good	13.269 \| good	16.167 \| good	0.955 \| good	22.101 \| good	0.577 \| good
2026-01-21T14:00:00.000Z	44 \| good	8.442 \| good	31.112 \| good	12.468 \| good	1.177 \| good	24.377 \| good	0.621 \| good
2026-01-21T15:00:00.000Z	38 \| good	6.689 \| good	28.375 \| good	11.955 \| good	1.61 \| good	20.407 \| good	0.564 \| good
2026-01-21T16:00:00.000Z	33 \| good	5.508 \| good	32.58 \| good	18.169 \| good	0.601 \| good	13.176 \| good	0.402 \| good
2026-01-21T17:00:00.000Z	22 \| good	3.897 \| good	13.588 \| good	18.86 \| good	0.582 \| good	12.902 \| good	0.348 \| good
2026-01-21T18:00:00.000Z	28 \| good	3.311 \| good	14.948 \| good	30.332 \| good	0.577 \| good	7.389 \| good	0.22 \| good
2026-01-21T19:00:00.000Z	31 \| good	3.812 \| good	16.936 \| good	33.114 \| good	0.494 \| good	6.756 \| good	0.193 \| good
2026-01-21T20:00:00.000Z	31 \| good	1.925 \| good	9.612 \| good	32.702 \| good	0.428 \| good	5.661 \| good	0.193 \| good
2026-01-21T21:00:00.000Z	32 \| good	3.457 \| good	19.022 \| good	34.581 \| good	0.279 \| good	5.787 \| good	0.201 \| good
2026-01-21T22:00:00.000Z	35 \| good	2.929 \| good	12.545 \| good	38.408 \| good	0.267 \| good	6.605 \| good	0.227 \| good
2026-01-21T23:00:00.000Z	34 \| good	2.957 \| good	12.211 \| good	37.121 \| good	0.268 \| good	7.684 \| good	0.234 \| good
2026-01-22T00:00:00.000Z	33 \| good	3.186 \| good	12.048 \| good	35.748 \| good	0.262 \| good	10.145 \| good	0.301 \| good
2026-01-22T01:00:00.000Z	35 \| good	5.063 \| good	14.751 \| good	37.598 \| good	0.305 \| good	14.247 \| good	0.322 \| good
2026-01-22T02:00:00.000Z	35 \| good	4.176 \| good	14.166 \| good	37.986 \| good	0.27 \| good	12.287 \| good	0.282 \| good
2026-01-22T03:00:00.000Z	33 \| good	4.595 \| good	16.473 \| good	35.945 \| good	0.26 \| good	6.978 \| good	0.234 \| good
2026-01-22T04:00:00.000Z	38 \| good	6.95 \| good	28.119 \| good	36.055 \| good	0.609 \| good	7.183 \| good	0.207 \| good
2026-01-22T05:00:00.000Z	31 \| good	4.326 \| good	12.684 \| good	34.303 \| good	1.28 \| good	8.407 \| good	0.207 \| good
2026-01-22T06:00:00.000Z	31 \| good	5.251 \| good	22.602 \| good	32.846 \| good	1.373 \| good	8.422 \| good	0.201 \| good
2026-01-22T07:00:00.000Z	38 \| good	6.674 \| good	24.792 \| good	32.782 \| good	0.659 \| good	8.008 \| good	0.194 \| good
2026-01-22T08:00:00.000Z	49 \| good	9.172 \| good	32.362 \| good	34.149 \| good	0.629 \| good	8.249 \| good	0.194 \| good
2026-01-22T09:00:00.000Z	49 \| good	8.539 \| good	31.555 \| good	31.674 \| good	0.619 \| good	10.85 \| good	0.194 \| good
2026-01-22T10:00:00.000Z	52 \| moderate	9.708 \| good	26.781 \| good	29.601 \| good	0.575 \| good	18.491 \| good	0.221 \| good
2026-01-22T11:00:00.000Z	49 \| good	8.831 \| good	29.736 \| good	30.511 \| good	0.528 \| good	22.807 \| good	0.275 \| good
2026-01-22T12:00:00.000Z	56 \| moderate	12.184 \| fine	52.281 \| good	23.682 \| good	0.595 \| good	26.693 \| good	0.295 \| good
2026-01-22T13:00:00.000Z	56 \| moderate	12.399 \| fine	48.313 \| good	27.205 \| good	0.579 \| good	30.087 \| good	0.314 \| good
2026-01-22T14:00:00.000Z	62 \| moderate	15.394 \| fine	52.016 \| good	24.444 \| good	0.755 \| good	26.832 \| good	0.321 \| good
2026-01-22T15:00:00.000Z	60 \| moderate	13.572 \| fine	26.571 \| good	23.766 \| good	0.721 \| good	24.484 \| good	0.361 \| good
2026-01-22T16:00:00.000Z	62 \| moderate	15.285 \| fine	75.871 \| fine	31.569 \| good	0.83 \| good	19.931 \| good	0.307 \| good
2026-01-22T17:00:00.000Z	52 \| moderate	10.102 \| good	45.245 \| good	32.214 \| good	0.568 \| good	9.141 \| good	0.234 \| good
2026-01-22T18:00:00.000Z	56 \| moderate	12.365 \| fine	18.576 \| good	34.87 \| good	0.457 \| good	5.165 \| good	0.186 \| good
2026-01-22T19:00:00.000Z	49 \| good	9.177 \| good	25.834 \| good	37.738 \| good	0.393 \| good	4.625 \| good	0.167 \| good
2026-01-22T20:00:00.000Z	36 \| good	5.893 \| good	22.334 \| good	38.765 \| good	0.359 \| good	4.37 \| good	0.136 \| good
2026-01-22T21:00:00.000Z	40 \| good	5.544 \| good	42.511 \| good	40.04 \| good	0.417 \| good	5.066 \| good	0.136 \| good
2026-01-22T22:00:00.000Z	44 \| good	7.917 \| good	34.284 \| good	38.888 \| good	0.435 \| good	5.551 \| good	0.136 \| good
2026-01-22T23:00:00.000Z	44 \| good	8.174 \| good	35.034 \| good	38.784 \| good	0.495 \| good	6.88 \| good	0.136 \| good
2026-01-23T00:00:00.000Z	33 \| good	5.382 \| good	19.531 \| good	36.318 \| good	0.327 \| good	11.649 \| good	0.136 \| good
2026-01-23T01:00:00.000Z	32 \| good	4.56 \| good	21.713 \| good	35.074 \| good	0.297 \| good	12.542 \| good	0.152 \| good
2026-01-23T02:00:00.000Z	44 \| good	7.503 \| good	27.768 \| good	31.953 \| good	0.319 \| good	12.476 \| good	0.136 \| good
2026-01-23T03:00:00.000Z	38 \| good	6.622 \| good	28.668 \| good	31.003 \| good	0.32 \| good	10.017 \| good	0.184 \| good
2026-01-23T04:00:00.000Z	38 \| good	7.122 \| good	24.944 \| good	26.182 \| good	0.372 \| good	10.711 \| good	0.178 \| good
2026-01-23T05:00:00.000Z	28 \| good	5.221 \| good	16.473 \| good	29.788 \| good	0.431 \| good	10.148 \| good	0.16 \| good
2026-01-23T06:00:00.000Z	27 \| good	4.653 \| good	21.714 \| good	25.418 \| good	0.479 \| good	9.158 \| good	0.271 \| good
2026-01-23T07:00:00.000Z	33 \| good	6.321 \| good	20.621 \| good	30.048 \| good	0.455 \| good	10.798 \| good	0.252 \| good
2026-01-23T08:00:00.000Z	33 \| good	5.766 \| good	15.393 \| good	24.33 \| good	0.406 \| good	13.924 \| good	0.244 \| good
2026-01-23T09:00:00.000Z	44 \| good	8.213 \| good	30.388 \| good	20.522 \| good	0.498 \| good	20.395 \| good	0.286 \| good
2026-01-23T10:00:00.000Z	44 \| good	8.213 \| good	30.388 \| good	20.522 \| good	0.498 \| good	20.395 \| good	0.286 \| good
2026-01-23T11:00:00.000Z	44 \| good	8.256 \| good	36.644 \| good	10.478 \| good	3.575 \| good	11.414 \| good	0.209 \| good
2026-01-23T12:00:00.000Z	49 \| good	8.823 \| good	38.847 \| good	11.361 \| good	3.837 \| good	12.516 \| good	0.215 \| good
2026-01-23T13:00:00.000Z	52 \| moderate	10.079 \| good	44.791 \| good	12.262 \| good	4.004 \| good	11.661 \| good	0.218 \| good
2026-01-23T14:00:00.000Z	54 \| moderate	11.348 \| good	50.709 \| good	17.687 \| good	4.172 \| good	10.805 \| good	0.22 \| good
2026-01-23T15:00:00.000Z	54 \| moderate	11.135 \| good	48.917 \| good	22.244 \| good	4.339 \| good	9.95 \| good	0.223 \| good
2026-01-23T16:00:00.000Z	52 \| moderate	9.732 \| good	42.896 \| good	26.609 \| good	3.955 \| good	8.06 \| good	0.207 \| good
2026-01-23T17:00:00.000Z	44 \| good	7.756 \| good	33.941 \| good	30.068 \| good	3.571 \| good	6.169 \| good	0.192 \| good
2026-01-23T18:00:00.000Z	38 \| good	6.598 \| good	29.764 \| good	32.04 \| good	3.188 \| good	4.279 \| good	0.177 \| good
2026-01-23T19:00:00.000Z	31 \| good	4.742 \| good	20.906 \| good	33.86 \| good	2.978 \| good	4.538 \| good	0.176 \| good
2026-01-23T20:00:00.000Z	31 \| good	4.167 \| good	18.027 \| good	33.888 \| good	2.768 \| good	4.798 \| good	0.176 \| good
2026-01-23T21:00:00.000Z	31 \| good	4.92 \| good	21.06 \| good	33.371 \| good	2.558 \| good	5.057 \| good	0.176 \| good
2026-01-23T22:00:00.000Z	31 \| good	3.859 \| good	16.901 \| good	33.712 \| good	2.463 \| good	5.11 \| good	0.173 \| good
2026-01-23T23:00:00.000Z	31 \| good	3.104 \| good	13.664 \| good	33.684 \| good	2.367 \| good	5.162 \| good	0.17 \| good
2026-01-24T00:00:00.000Z	27 \| good	3.225 \| good	13.919 \| good	29.125 \| good	2.272 \| good	5.215 \| good	0.167 \| good
2026-01-24T01:00:00.000Z	26 \| good	2.767 \| good	11.043 \| good	28.379 \| good	1.994 \| good	4.484 \| good	0.161 \| good
2026-01-24T02:00:00.000Z	27 \| good	2.079 \| good	8.082 \| good	29.253 \| good	1.715 \| good	3.752 \| good	0.156 \| good
2026-01-24T03:00:00.000Z	28 \| good	2.147 \| good	8.913 \| good	29.679 \| good	1.437 \| good	3.021 \| good	0.15 \| good
2026-01-24T04:00:00.000Z	27 \| good	2.499 \| good	10.011 \| good	28.592 \| good	1.238 \| good	2.634 \| good	0.146 \| good
2026-01-24T05:00:00.000Z	24 \| good	2.575 \| good	10.085 \| good	26.469 \| good	1.039 \| good	2.248 \| good	0.142 \| good
2026-01-24T06:00:00.000Z	22 \| good	2.967 \| good	12.056 \| good	24.042 \| good	0.839 \| good	1.861 \| good	0.137 \| good
2026-01-24T07:00:00.000Z	21 \| good	2.711 \| good	10.972 \| good	23.114 \| good	0.805 \| good	1.814 \| good	0.137 \| good
2026-01-24T08:00:00.000Z	21 \| good	2.708 \| good	10.971 \| good	23.106 \| good	0.77 \| good	1.767 \| good	0.137 \| good
2026-01-24T09:00:00.000Z	20 \| good	3.407 \| good	14.929 \| good	22.498 \| good	0.735 \| good	1.72 \| good	0.137 \| good
2026-01-24T10:00:00.000Z	19 \| good	2.896 \| good	11.906 \| good	20.727 \| good	0.77 \| good	1.949 \| good	0.139 \| good
2026-01-24T11:00:00.000Z	19 \| good	2.141 \| good	8.848 \| good	20.783 \| good	0.804 \| good	2.179 \| good	0.141 \| good
2026-01-24T12:00:00.000Z	19 \| good	2.472 \| good	10 \| good	21.175 \| good	0.838 \| good	2.408 \| good	0.144 \| good
2026-01-24T13:00:00.000Z	20 \| good	3.149 \| good	13.772 \| good	21.743 \| good	0.967 \| good	2.464 \| good	0.147 \| good
2026-01-24T14:00:00.000Z	20 \| good	3.268 \| good	14.033 \| good	21.977 \| good	1.095 \| good	2.52 \| good	0.15 \| good
2026-01-24T15:00:00.000Z	19 \| good	3.481 \| good	15.074 \| good	21.238 \| good	1.224 \| good	2.575 \| good	0.154 \| good
2026-01-24T16:00:00.000Z	22 \| good	3.699 \| good	16 \| good	21.549 \| good	1.37 \| good	2.476 \| good	0.154 \| good
2026-01-24T17:00:00.000Z	21 \| good	3.14 \| good	13.814 \| good	22.955 \| good	1.516 \| good	2.376 \| good	0.154 \| good
2026-01-24T18:00:00.000Z	22 \| good	3.422 \| good	14.98 \| good	23.624 \| good	1.662 \| good	2.277 \| good	0.154 \| good
2026-01-24T19:00:00.000Z	22 \| good	4.084 \| good	17.984 \| good	24.103 \| good	1.727 \| good	2.706 \| good	0.155 \| good
2026-01-24T20:00:00.000Z	22 \| good	3.81 \| good	16.92 \| good	24.12 \| good	1.793 \| good	3.135 \| good	0.156 \| good
2026-01-24T21:00:00.000Z	22 \| good	3.427 \| good	15.023 \| good	24.347 \| good	1.858 \| good	3.564 \| good	0.156 \| good
2026-01-24T22:00:00.000Z	23 \| good	2.671 \| good	10.897 \| good	24.76 \| good	1.947 \| good	3.999 \| good	0.158 \| good
2026-01-24T23:00:00.000Z	22 \| good	2.265 \| good	9.045 \| good	23.874 \| good	2.035 \| good	4.433 \| good	0.161 \| good
2026-01-25T00:00:00.000Z	21 \| good	2.453 \| good	9.922 \| good	22.685 \| good	2.123 \| good	4.868 \| good	0.163 \| good
2026-01-25T01:00:00.000Z	20 \| good	3.412 \| good	14.896 \| good	22.282 \| good	2.229 \| good	4.827 \| good	0.164 \| good
2026-01-25T02:00:00.000Z	22 \| good	3.633 \| good	15.9 \| good	22.415 \| good	2.334 \| good	4.786 \| good	0.165 \| good
2026-01-25T03:00:00.000Z	20 \| good	3.191 \| good	13.822 \| good	22.164 \| good	2.44 \| good	4.744 \| good	0.166 \| good
2026-01-25T04:00:00.000Z	22 \| good	3.942 \| good	17.015 \| good	21.746 \| good	2.331 \| good	4.636 \| good	0.166 \| good
2026-01-25T05:00:00.000Z	22 \| good	4.158 \| good	18.052 \| good	21.808 \| good	2.223 \| good	4.527 \| good	0.167 \| good
2026-01-25T06:00:00.000Z	27 \| good	4.766 \| good	4.953 \| good	26.924 \| good	2.121 \| good	4.42 \| good	0.168 \| good
2026-01-25T07:00:00.000Z	33 \| good	6.158 \| good	27.035 \| good	20.444 \| good	1.872 \| good	4.434 \| good	0.168 \| good
2026-01-25T08:00:00.000Z	38 \| good	7.305 \| good	32.016 \| good	19.143 \| good	1.631 \| good	4.45 \| good	0.168 \| good
2026-01-25T09:00:00.000Z	44 \| good	8.119 \| good	35.898 \| good	19.576 \| good	1.389 \| good	4.465 \| good	0.168 \| good
2026-01-25T10:00:00.000Z	38 \| good	6.751 \| good	30.03 \| good	19.909 \| good	1.322 \| good	4.859 \| good	0.169 \| good

Arnold

Empower business decisions with accurate air quality data

Arnold, Maryland air quality map: Real-time AQI near you

0.28ppm

How accurate is Maryland, USA air quality data?

Air quality measurements for Maryland, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.

Source: Ambee Data Sources

Air quality levels in US

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

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Frequently asked questions

How frequently is the air quality data for Arnold, Maryland updated?

Air quality data for Arnold, Maryland is updated on an hourly basis.

When did Arnold, Maryland experience the worst air quality in the last 24 hours?

The worst air quality in Arnold, Maryland was recorded at 04:00:00 on 2026-01-22.

When did Arnold, Maryland have its best air quality in the last 24 hours?

The best air quality in Arnold, Maryland was recorded at 06:00:00 on 2026-01-23.

What is the real-time air quality index for Arnold, Maryland?

The real-time air quality index in Arnold, Maryland is 44, currently categorized as Good.

Which pollutant is found most often in Arnold, Maryland?

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

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

If the air quality in Arnold, Maryland is poor, limit outdoor activities and use a mask to safeguard your health.

What are the current PM_2.5 levels in Arnold, Maryland?

The measured PM_2.5 levels in Arnold, Maryland at present are 8.213 μg/m³.

What are the current PM₁₀ levels at Arnold, Maryland?

The current PM₁₀ levels in Arnold, Maryland are 30.388 μg/m³.

What are the current carbon monoxide (CO) levels at Arnold, Maryland?

The current carbon monoxide (CO) level in Arnold, Maryland is 0.286 ppm.

What are the current sulfur dioxide (SO₂) levels at Arnold, Maryland?

The current sulfur dioxide (SO₂) levels in Arnold, Maryland are 0.498 ppb.

What are the current ozone (O₃) levels at Arnold, Maryland?

The current ozone (O₃) levels at Arnold, Maryland is 20.522 ppm.

What are the current nitrogen dioxide (NO₂) levels at Arnold, Maryland?

The current nitrogen dioxide (NO₂) levels at Arnold, Maryland is 20.395 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-01-21T11:00:00.000Z	27 \| good	5.239 \| good	21.688 \| good	17.294 \| good	0.951 \| good	22.909 \| good	0.443 \| good
2026-01-21T12:00:00.000Z	27 \| good	5.013 \| good	24.426 \| good	15.808 \| good	0.984 \| good	21.53 \| good	0.544 \| good
2026-01-21T13:00:00.000Z	27 \| good	4.615 \| good	13.269 \| good	16.167 \| good	0.955 \| good	22.101 \| good	0.577 \| good
2026-01-21T14:00:00.000Z	44 \| good	8.442 \| good	31.112 \| good	12.468 \| good	1.177 \| good	24.377 \| good	0.621 \| good
2026-01-21T15:00:00.000Z	38 \| good	6.689 \| good	28.375 \| good	11.955 \| good	1.61 \| good	20.407 \| good	0.564 \| good
2026-01-21T16:00:00.000Z	33 \| good	5.508 \| good	32.58 \| good	18.169 \| good	0.601 \| good	13.176 \| good	0.402 \| good
2026-01-21T17:00:00.000Z	22 \| good	3.897 \| good	13.588 \| good	18.86 \| good	0.582 \| good	12.902 \| good	0.348 \| good
2026-01-21T18:00:00.000Z	28 \| good	3.311 \| good	14.948 \| good	30.332 \| good	0.577 \| good	7.389 \| good	0.22 \| good
2026-01-21T19:00:00.000Z	31 \| good	3.812 \| good	16.936 \| good	33.114 \| good	0.494 \| good	6.756 \| good	0.193 \| good
2026-01-21T20:00:00.000Z	31 \| good	1.925 \| good	9.612 \| good	32.702 \| good	0.428 \| good	5.661 \| good	0.193 \| good
2026-01-21T21:00:00.000Z	32 \| good	3.457 \| good	19.022 \| good	34.581 \| good	0.279 \| good	5.787 \| good	0.201 \| good
2026-01-21T22:00:00.000Z	35 \| good	2.929 \| good	12.545 \| good	38.408 \| good	0.267 \| good	6.605 \| good	0.227 \| good
2026-01-21T23:00:00.000Z	34 \| good	2.957 \| good	12.211 \| good	37.121 \| good	0.268 \| good	7.684 \| good	0.234 \| good
2026-01-22T00:00:00.000Z	33 \| good	3.186 \| good	12.048 \| good	35.748 \| good	0.262 \| good	10.145 \| good	0.301 \| good
2026-01-22T01:00:00.000Z	35 \| good	5.063 \| good	14.751 \| good	37.598 \| good	0.305 \| good	14.247 \| good	0.322 \| good
2026-01-22T02:00:00.000Z	35 \| good	4.176 \| good	14.166 \| good	37.986 \| good	0.27 \| good	12.287 \| good	0.282 \| good
2026-01-22T03:00:00.000Z	33 \| good	4.595 \| good	16.473 \| good	35.945 \| good	0.26 \| good	6.978 \| good	0.234 \| good
2026-01-22T04:00:00.000Z	38 \| good	6.95 \| good	28.119 \| good	36.055 \| good	0.609 \| good	7.183 \| good	0.207 \| good
2026-01-22T05:00:00.000Z	31 \| good	4.326 \| good	12.684 \| good	34.303 \| good	1.28 \| good	8.407 \| good	0.207 \| good
2026-01-22T06:00:00.000Z	31 \| good	5.251 \| good	22.602 \| good	32.846 \| good	1.373 \| good	8.422 \| good	0.201 \| good
2026-01-22T07:00:00.000Z	38 \| good	6.674 \| good	24.792 \| good	32.782 \| good	0.659 \| good	8.008 \| good	0.194 \| good
2026-01-22T08:00:00.000Z	49 \| good	9.172 \| good	32.362 \| good	34.149 \| good	0.629 \| good	8.249 \| good	0.194 \| good
2026-01-22T09:00:00.000Z	49 \| good	8.539 \| good	31.555 \| good	31.674 \| good	0.619 \| good	10.85 \| good	0.194 \| good
2026-01-22T10:00:00.000Z	52 \| moderate	9.708 \| good	26.781 \| good	29.601 \| good	0.575 \| good	18.491 \| good	0.221 \| good
2026-01-22T11:00:00.000Z	49 \| good	8.831 \| good	29.736 \| good	30.511 \| good	0.528 \| good	22.807 \| good	0.275 \| good
2026-01-22T12:00:00.000Z	56 \| moderate	12.184 \| fine	52.281 \| good	23.682 \| good	0.595 \| good	26.693 \| good	0.295 \| good
2026-01-22T13:00:00.000Z	56 \| moderate	12.399 \| fine	48.313 \| good	27.205 \| good	0.579 \| good	30.087 \| good	0.314 \| good
2026-01-22T14:00:00.000Z	62 \| moderate	15.394 \| fine	52.016 \| good	24.444 \| good	0.755 \| good	26.832 \| good	0.321 \| good
2026-01-22T15:00:00.000Z	60 \| moderate	13.572 \| fine	26.571 \| good	23.766 \| good	0.721 \| good	24.484 \| good	0.361 \| good
2026-01-22T16:00:00.000Z	62 \| moderate	15.285 \| fine	75.871 \| fine	31.569 \| good	0.83 \| good	19.931 \| good	0.307 \| good
2026-01-22T17:00:00.000Z	52 \| moderate	10.102 \| good	45.245 \| good	32.214 \| good	0.568 \| good	9.141 \| good	0.234 \| good
2026-01-22T18:00:00.000Z	56 \| moderate	12.365 \| fine	18.576 \| good	34.87 \| good	0.457 \| good	5.165 \| good	0.186 \| good
2026-01-22T19:00:00.000Z	49 \| good	9.177 \| good	25.834 \| good	37.738 \| good	0.393 \| good	4.625 \| good	0.167 \| good
2026-01-22T20:00:00.000Z	36 \| good	5.893 \| good	22.334 \| good	38.765 \| good	0.359 \| good	4.37 \| good	0.136 \| good
2026-01-22T21:00:00.000Z	40 \| good	5.544 \| good	42.511 \| good	40.04 \| good	0.417 \| good	5.066 \| good	0.136 \| good
2026-01-22T22:00:00.000Z	44 \| good	7.917 \| good	34.284 \| good	38.888 \| good	0.435 \| good	5.551 \| good	0.136 \| good
2026-01-22T23:00:00.000Z	44 \| good	8.174 \| good	35.034 \| good	38.784 \| good	0.495 \| good	6.88 \| good	0.136 \| good
2026-01-23T00:00:00.000Z	33 \| good	5.382 \| good	19.531 \| good	36.318 \| good	0.327 \| good	11.649 \| good	0.136 \| good
2026-01-23T01:00:00.000Z	32 \| good	4.56 \| good	21.713 \| good	35.074 \| good	0.297 \| good	12.542 \| good	0.152 \| good
2026-01-23T02:00:00.000Z	44 \| good	7.503 \| good	27.768 \| good	31.953 \| good	0.319 \| good	12.476 \| good	0.136 \| good
2026-01-23T03:00:00.000Z	38 \| good	6.622 \| good	28.668 \| good	31.003 \| good	0.32 \| good	10.017 \| good	0.184 \| good
2026-01-23T04:00:00.000Z	38 \| good	7.122 \| good	24.944 \| good	26.182 \| good	0.372 \| good	10.711 \| good	0.178 \| good
2026-01-23T05:00:00.000Z	28 \| good	5.221 \| good	16.473 \| good	29.788 \| good	0.431 \| good	10.148 \| good	0.16 \| good
2026-01-23T06:00:00.000Z	27 \| good	4.653 \| good	21.714 \| good	25.418 \| good	0.479 \| good	9.158 \| good	0.271 \| good
2026-01-23T07:00:00.000Z	33 \| good	6.321 \| good	20.621 \| good	30.048 \| good	0.455 \| good	10.798 \| good	0.252 \| good
2026-01-23T08:00:00.000Z	33 \| good	5.766 \| good	15.393 \| good	24.33 \| good	0.406 \| good	13.924 \| good	0.244 \| good
2026-01-23T09:00:00.000Z	44 \| good	8.213 \| good	30.388 \| good	20.522 \| good	0.498 \| good	20.395 \| good	0.286 \| good
2026-01-23T10:00:00.000Z	44 \| good	8.213 \| good	30.388 \| good	20.522 \| good	0.498 \| good	20.395 \| good	0.286 \| good
2026-01-23T11:00:00.000Z	44 \| good	8.256 \| good	36.644 \| good	10.478 \| good	3.575 \| good	11.414 \| good	0.209 \| good
2026-01-23T12:00:00.000Z	49 \| good	8.823 \| good	38.847 \| good	11.361 \| good	3.837 \| good	12.516 \| good	0.215 \| good
2026-01-23T13:00:00.000Z	52 \| moderate	10.079 \| good	44.791 \| good	12.262 \| good	4.004 \| good	11.661 \| good	0.218 \| good
2026-01-23T14:00:00.000Z	54 \| moderate	11.348 \| good	50.709 \| good	17.687 \| good	4.172 \| good	10.805 \| good	0.22 \| good
2026-01-23T15:00:00.000Z	54 \| moderate	11.135 \| good	48.917 \| good	22.244 \| good	4.339 \| good	9.95 \| good	0.223 \| good
2026-01-23T16:00:00.000Z	52 \| moderate	9.732 \| good	42.896 \| good	26.609 \| good	3.955 \| good	8.06 \| good	0.207 \| good
2026-01-23T17:00:00.000Z	44 \| good	7.756 \| good	33.941 \| good	30.068 \| good	3.571 \| good	6.169 \| good	0.192 \| good
2026-01-23T18:00:00.000Z	38 \| good	6.598 \| good	29.764 \| good	32.04 \| good	3.188 \| good	4.279 \| good	0.177 \| good
2026-01-23T19:00:00.000Z	31 \| good	4.742 \| good	20.906 \| good	33.86 \| good	2.978 \| good	4.538 \| good	0.176 \| good
2026-01-23T20:00:00.000Z	31 \| good	4.167 \| good	18.027 \| good	33.888 \| good	2.768 \| good	4.798 \| good	0.176 \| good
2026-01-23T21:00:00.000Z	31 \| good	4.92 \| good	21.06 \| good	33.371 \| good	2.558 \| good	5.057 \| good	0.176 \| good
2026-01-23T22:00:00.000Z	31 \| good	3.859 \| good	16.901 \| good	33.712 \| good	2.463 \| good	5.11 \| good	0.173 \| good
2026-01-23T23:00:00.000Z	31 \| good	3.104 \| good	13.664 \| good	33.684 \| good	2.367 \| good	5.162 \| good	0.17 \| good
2026-01-24T00:00:00.000Z	27 \| good	3.225 \| good	13.919 \| good	29.125 \| good	2.272 \| good	5.215 \| good	0.167 \| good
2026-01-24T01:00:00.000Z	26 \| good	2.767 \| good	11.043 \| good	28.379 \| good	1.994 \| good	4.484 \| good	0.161 \| good
2026-01-24T02:00:00.000Z	27 \| good	2.079 \| good	8.082 \| good	29.253 \| good	1.715 \| good	3.752 \| good	0.156 \| good
2026-01-24T03:00:00.000Z	28 \| good	2.147 \| good	8.913 \| good	29.679 \| good	1.437 \| good	3.021 \| good	0.15 \| good
2026-01-24T04:00:00.000Z	27 \| good	2.499 \| good	10.011 \| good	28.592 \| good	1.238 \| good	2.634 \| good	0.146 \| good
2026-01-24T05:00:00.000Z	24 \| good	2.575 \| good	10.085 \| good	26.469 \| good	1.039 \| good	2.248 \| good	0.142 \| good
2026-01-24T06:00:00.000Z	22 \| good	2.967 \| good	12.056 \| good	24.042 \| good	0.839 \| good	1.861 \| good	0.137 \| good
2026-01-24T07:00:00.000Z	21 \| good	2.711 \| good	10.972 \| good	23.114 \| good	0.805 \| good	1.814 \| good	0.137 \| good
2026-01-24T08:00:00.000Z	21 \| good	2.708 \| good	10.971 \| good	23.106 \| good	0.77 \| good	1.767 \| good	0.137 \| good
2026-01-24T09:00:00.000Z	20 \| good	3.407 \| good	14.929 \| good	22.498 \| good	0.735 \| good	1.72 \| good	0.137 \| good
2026-01-24T10:00:00.000Z	19 \| good	2.896 \| good	11.906 \| good	20.727 \| good	0.77 \| good	1.949 \| good	0.139 \| good
2026-01-24T11:00:00.000Z	19 \| good	2.141 \| good	8.848 \| good	20.783 \| good	0.804 \| good	2.179 \| good	0.141 \| good
2026-01-24T12:00:00.000Z	19 \| good	2.472 \| good	10 \| good	21.175 \| good	0.838 \| good	2.408 \| good	0.144 \| good
2026-01-24T13:00:00.000Z	20 \| good	3.149 \| good	13.772 \| good	21.743 \| good	0.967 \| good	2.464 \| good	0.147 \| good
2026-01-24T14:00:00.000Z	20 \| good	3.268 \| good	14.033 \| good	21.977 \| good	1.095 \| good	2.52 \| good	0.15 \| good
2026-01-24T15:00:00.000Z	19 \| good	3.481 \| good	15.074 \| good	21.238 \| good	1.224 \| good	2.575 \| good	0.154 \| good
2026-01-24T16:00:00.000Z	22 \| good	3.699 \| good	16 \| good	21.549 \| good	1.37 \| good	2.476 \| good	0.154 \| good
2026-01-24T17:00:00.000Z	21 \| good	3.14 \| good	13.814 \| good	22.955 \| good	1.516 \| good	2.376 \| good	0.154 \| good
2026-01-24T18:00:00.000Z	22 \| good	3.422 \| good	14.98 \| good	23.624 \| good	1.662 \| good	2.277 \| good	0.154 \| good
2026-01-24T19:00:00.000Z	22 \| good	4.084 \| good	17.984 \| good	24.103 \| good	1.727 \| good	2.706 \| good	0.155 \| good
2026-01-24T20:00:00.000Z	22 \| good	3.81 \| good	16.92 \| good	24.12 \| good	1.793 \| good	3.135 \| good	0.156 \| good
2026-01-24T21:00:00.000Z	22 \| good	3.427 \| good	15.023 \| good	24.347 \| good	1.858 \| good	3.564 \| good	0.156 \| good
2026-01-24T22:00:00.000Z	23 \| good	2.671 \| good	10.897 \| good	24.76 \| good	1.947 \| good	3.999 \| good	0.158 \| good
2026-01-24T23:00:00.000Z	22 \| good	2.265 \| good	9.045 \| good	23.874 \| good	2.035 \| good	4.433 \| good	0.161 \| good
2026-01-25T00:00:00.000Z	21 \| good	2.453 \| good	9.922 \| good	22.685 \| good	2.123 \| good	4.868 \| good	0.163 \| good
2026-01-25T01:00:00.000Z	20 \| good	3.412 \| good	14.896 \| good	22.282 \| good	2.229 \| good	4.827 \| good	0.164 \| good
2026-01-25T02:00:00.000Z	22 \| good	3.633 \| good	15.9 \| good	22.415 \| good	2.334 \| good	4.786 \| good	0.165 \| good
2026-01-25T03:00:00.000Z	20 \| good	3.191 \| good	13.822 \| good	22.164 \| good	2.44 \| good	4.744 \| good	0.166 \| good
2026-01-25T04:00:00.000Z	22 \| good	3.942 \| good	17.015 \| good	21.746 \| good	2.331 \| good	4.636 \| good	0.166 \| good
2026-01-25T05:00:00.000Z	22 \| good	4.158 \| good	18.052 \| good	21.808 \| good	2.223 \| good	4.527 \| good	0.167 \| good
2026-01-25T06:00:00.000Z	27 \| good	4.766 \| good	4.953 \| good	26.924 \| good	2.121 \| good	4.42 \| good	0.168 \| good
2026-01-25T07:00:00.000Z	33 \| good	6.158 \| good	27.035 \| good	20.444 \| good	1.872 \| good	4.434 \| good	0.168 \| good
2026-01-25T08:00:00.000Z	38 \| good	7.305 \| good	32.016 \| good	19.143 \| good	1.631 \| good	4.45 \| good	0.168 \| good
2026-01-25T09:00:00.000Z	44 \| good	8.119 \| good	35.898 \| good	19.576 \| good	1.389 \| good	4.465 \| good	0.168 \| good
2026-01-25T10:00:00.000Z	38 \| good	6.751 \| good	30.03 \| good	19.909 \| good	1.322 \| good	4.859 \| good	0.169 \| good

Real-time air quality index in Arnold, Maryland today

Common air pollutants in Arnold, Maryland

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Arnold, Maryland air quality forecast and history

Empower business decisions with accurate air quality data

Arnold, Maryland air quality map: Real-time AQI near you

Air quality in nearby cities

Severna Park, Maryland

Annapolis, Maryland

Parole, Maryland

Lake Shore, Maryland

Annapolis Neck, Maryland

Pasadena, Maryland

How accurate is Maryland, USA air quality data?

Air quality levels in US

Frequently asked questions

How frequently is the air quality data for Arnold, Maryland updated?

When did Arnold, Maryland experience the worst air quality in the last 24 hours?

When did Arnold, Maryland have its best air quality in the last 24 hours?

What is the real-time air quality index for Arnold, Maryland?

Which pollutant is found most often in Arnold, Maryland?

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

What are the current PM2.5 levels in Arnold, Maryland?

What are the current PM10 levels at Arnold, Maryland?

What are the current carbon monoxide (CO) levels at Arnold, Maryland?

What are the current sulfur dioxide (SO2) levels at Arnold, Maryland?

What are the current ozone (O3) levels at Arnold, Maryland?

What are the current nitrogen dioxide (NO2) levels at Arnold, Maryland?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What are the current PM_2.5 levels in Arnold, Maryland?

What are the current PM₁₀ levels at Arnold, Maryland?

What are the current sulfur dioxide (SO₂) levels at Arnold, Maryland?

What are the current ozone (O₃) levels at Arnold, Maryland?

What are the current nitrogen dioxide (NO₂) levels at Arnold, Maryland?