What are the current PM10 levels at Ellicott City, Maryland?

The current PM10 levels in Ellicott City, Maryland are 57.786 μg/m3.

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

The current sulfur dioxide (SO2) levels in Ellicott City, Maryland are 0.194 ppb.

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

The current ozone (O3) levels at Ellicott City, Maryland is 12.571 ppm.

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

The current nitrogen dioxide (NO2) levels at Ellicott City, Maryland is 14.031 ppb.

Live air quality index in Ellicott City, Maryland today

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

Stay updated with real-time air quality in Ellicott City, 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)

Moderate

Ellicott City, Maryland

Last updated: ... (Local time)

Major air pollutants in Ellicott City, Maryland

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

12.57 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

57.79 μg/m³

155

255

425

605+

Ozone (O₃)

12.57 ppb

201

201+

Sulfur Dioxide (SO₂)

0.19 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

14.03 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.36 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

High

Ellicott City, Maryland

Get Live Pollen Counts

Ellicott City, Maryland

Scroll To Air Quality Map

Track live Ellicott City, Maryland air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-04T12:00:00.000Z	52 \| moderate	10.209 \| good	40.852 \| good	25.837 \| good	0.412 \| good	15.019 \| good	0.406 \| good
2025-06-04T13:00:00.000Z	52 \| moderate	10.263 \| good	45.052 \| good	35.657 \| good	2.74 \| good	2.411 \| good	0.247 \| good
2025-06-04T14:00:00.000Z	52 \| moderate	10.482 \| good	39.33 \| good	34.256 \| good	0.419 \| good	14.258 \| good	0.291 \| good
2025-06-04T15:00:00.000Z	54 \| moderate	10.955 \| good	29.492 \| good	35.782 \| good	0.336 \| good	11.917 \| good	0.267 \| good
2025-06-04T16:00:00.000Z	54 \| moderate	11.036 \| good	32.966 \| good	46.728 \| good	0.313 \| good	9.443 \| good	0.267 \| good
2025-06-04T17:00:00.000Z	60 \| moderate	13.95 \| fine	61.625 \| fine	51.054 \| good	0.289 \| good	8.176 \| good	0.267 \| good
2025-06-04T18:00:00.000Z	58 \| moderate	13.272 \| fine	40.776 \| good	53.792 \| good	0.216 \| good	5.454 \| good	0.254 \| good
2025-06-04T19:00:00.000Z	74 \| moderate	14.775 \| fine	66.488 \| fine	62.404 \| fine	0.231 \| good	4.245 \| good	0.254 \| good
2025-06-04T20:00:00.000Z	80 \| moderate	15.668 \| fine	67.976 \| fine	64.338 \| fine	0.464 \| good	4.418 \| good	0.267 \| good
2025-06-04T21:00:00.000Z	93 \| moderate	13.966 \| fine	61.524 \| fine	67.501 \| fine	0.354 \| good	4.494 \| good	0.243 \| good
2025-06-04T22:00:00.000Z	74 \| moderate	15.718 \| fine	73.057 \| fine	62.026 \| fine	0.261 \| good	4.99 \| good	0.243 \| good
2025-06-04T23:00:00.000Z	66 \| moderate	16.613 \| fine	74.543 \| fine	55.236 \| fine	0.21 \| good	6.871 \| good	0.243 \| good
2025-06-05T00:00:00.000Z	64 \| moderate	13.877 \| fine	59.357 \| fine	58.598 \| fine	0.223 \| good	6.545 \| good	0.305 \| good
2025-06-05T01:00:00.000Z	60 \| moderate	13.772 \| fine	62.133 \| fine	52.045 \| good	0.232 \| good	7.306 \| good	0.318 \| good
2025-06-05T02:00:00.000Z	60 \| moderate	14.123 \| fine	72.187 \| fine	51.467 \| good	0.207 \| good	9.725 \| good	0.318 \| good
2025-06-05T03:00:00.000Z	56 \| moderate	12.453 \| fine	58.445 \| fine	44.659 \| good	0.197 \| good	10.963 \| good	0.318 \| good
2025-06-05T04:00:00.000Z	60 \| moderate	13.697 \| fine	62.041 \| fine	41.231 \| good	0.187 \| good	10.779 \| good	0.28 \| good
2025-06-05T05:00:00.000Z	61 \| moderate	13.197 \| fine	75.23 \| fine	35.922 \| good	0.223 \| good	11.674 \| good	0.306 \| good
2025-06-05T06:00:00.000Z	60 \| moderate	13.165 \| fine	74.204 \| fine	31.874 \| good	0.21 \| good	12.481 \| good	0.242 \| good
2025-06-05T07:00:00.000Z	58 \| moderate	13.04 \| fine	58.225 \| fine	28.94 \| good	0.202 \| good	11.476 \| good	0.267 \| good
2025-06-05T08:00:00.000Z	54 \| moderate	11.447 \| good	39.585 \| good	34.831 \| good	0.303 \| good	12.361 \| good	0.267 \| good
2025-06-05T09:00:00.000Z	56 \| moderate	12.133 \| fine	50.894 \| good	26.556 \| good	0.301 \| good	13.738 \| good	0.28 \| good
2025-06-05T10:00:00.000Z	58 \| moderate	12.862 \| fine	54.801 \| good	22.114 \| good	0.182 \| good	11.753 \| good	0.304 \| good
2025-06-05T11:00:00.000Z	58 \| moderate	12.581 \| fine	46.668 \| good	22.222 \| good	0.304 \| good	13.022 \| good	0.253 \| good
2025-06-05T12:00:00.000Z	58 \| moderate	13.149 \| fine	57.2 \| fine	22.668 \| good	0.361 \| good	12.345 \| good	0.367 \| good
2025-06-05T13:00:00.000Z	56 \| moderate	11.913 \| good	50.24 \| good	26.723 \| good	0.345 \| good	11.223 \| good	0.254 \| good
2025-06-05T14:00:00.000Z	56 \| moderate	12.411 \| fine	54.81 \| good	33.612 \| good	0.254 \| good	11.419 \| good	0.254 \| good
2025-06-05T15:00:00.000Z	58 \| moderate	13.269 \| fine	53.353 \| good	33.372 \| good	0.399 \| good	9.37 \| good	0.254 \| good
2025-06-05T16:00:00.000Z	62 \| moderate	15.329 \| fine	58.085 \| fine	36.396 \| good	0.825 \| good	7.997 \| good	0.254 \| good
2025-06-05T17:00:00.000Z	69 \| moderate	19.295 \| fine	74.652 \| fine	47.13 \| good	0.775 \| good	5.98 \| good	0.254 \| good
2025-06-05T18:00:00.000Z	72 \| moderate	17.466 \| fine	97.744 \| fine	58.898 \| fine	0.428 \| good	4.887 \| good	0.23 \| good
2025-06-05T19:00:00.000Z	73 \| moderate	21.454 \| fine	87.036 \| fine	57.026 \| fine	0.285 \| good	4.361 \| good	0.23 \| good
2025-06-05T20:00:00.000Z	87 \| moderate	19.821 \| fine	63.864 \| fine	65.938 \| fine	0.226 \| good	3.998 \| good	0.192 \| good
2025-06-05T21:00:00.000Z	77 \| moderate	19.646 \| fine	94.924 \| fine	63.136 \| fine	0.253 \| good	4.461 \| good	0.254 \| good
2025-06-05T22:00:00.000Z	73 \| moderate	21.081 \| fine	93.065 \| fine	56.821 \| fine	0.237 \| good	5.187 \| good	0.243 \| good
2025-06-05T23:00:00.000Z	60 \| moderate	14.08 \| fine	53.717 \| good	52.69 \| good	0.87 \| good	6.635 \| good	0.243 \| good
2025-06-06T00:00:00.000Z	60 \| moderate	14.375 \| fine	51.915 \| good	44.121 \| good	0.352 \| good	4.076 \| good	0.243 \| good
2025-06-06T01:00:00.000Z	52 \| moderate	10.218 \| good	54.135 \| good	39.287 \| good	0.279 \| good	7.648 \| good	0.243 \| good
2025-06-06T02:00:00.000Z	54 \| moderate	11.441 \| good	48.476 \| good	40.943 \| good	0.194 \| good	7.499 \| good	0.256 \| good
2025-06-06T03:00:00.000Z	54 \| moderate	11.234 \| good	48.236 \| good	36.327 \| good	0.247 \| good	8.224 \| good	0.293 \| good
2025-06-06T04:00:00.000Z	54 \| moderate	11.138 \| good	42.719 \| good	33.019 \| good	0.192 \| good	9.412 \| good	0.256 \| good
2025-06-06T05:00:00.000Z	52 \| moderate	10.371 \| good	45.068 \| good	31.419 \| good	0.193 \| good	17.632 \| good	0.293 \| good
2025-06-06T06:00:00.000Z	54 \| moderate	11.126 \| good	51.727 \| good	32.848 \| good	0.157 \| good	13.34 \| good	0.256 \| good
2025-06-06T07:00:00.000Z	56 \| moderate	11.586 \| good	60.576 \| fine	28.137 \| good	0.17 \| good	10.405 \| good	0.256 \| good
2025-06-06T08:00:00.000Z	58 \| moderate	12.808 \| fine	48.145 \| good	26.185 \| good	0.177 \| good	11.37 \| good	0.242 \| good
2025-06-06T09:00:00.000Z	60 \| moderate	13.646 \| fine	49.248 \| good	17.912 \| good	0.171 \| good	13.419 \| good	0.28 \| good
2025-06-06T10:00:00.000Z	58 \| moderate	12.572 \| fine	57.786 \| fine	12.571 \| good	0.194 \| good	14.031 \| good	0.357 \| good
2025-06-06T11:00:00.000Z	60 \| moderate	14.074 \| fine	65.329 \| fine	10.843 \| good	0.194 \| good	13.875 \| good	0.28 \| good
2025-06-06T11:00:00.000Z	58 \| moderate	12.572 \| fine	57.786 \| fine	12.571 \| good	0.194 \| good	14.031 \| good	0.357 \| good
2025-06-06T12:00:00.000Z	52 \| moderate	10.222 \| good	45.178 \| good	26.311 \| good	1.927 \| good	6.034 \| good	0.204 \| good
2025-06-06T13:00:00.000Z	49 \| good	9.35 \| good	41.879 \| good	33.548 \| good	1.86 \| good	2.945 \| good	0.184 \| good
2025-06-06T14:00:00.000Z	54 \| moderate	11.372 \| good	50.006 \| good	41.883 \| good	2.238 \| good	3.571 \| good	0.183 \| good
2025-06-06T15:00:00.000Z	52 \| moderate	9.719 \| good	42.931 \| good	49.747 \| good	2.617 \| good	4.196 \| good	0.182 \| good
2025-06-06T16:00:00.000Z	49 \| good	9.364 \| good	41.989 \| good	50.918 \| good	1.31 \| good	1.329 \| good	0.153 \| good
2025-06-06T17:00:00.000Z	46 \| good	8.38 \| good	36.831 \| good	49.511 \| good	1.533 \| good	1.389 \| good	0.151 \| good
2025-06-06T18:00:00.000Z	44 \| good	8.221 \| good	35.926 \| good	48.146 \| good	1.756 \| good	1.449 \| good	0.149 \| good
2025-06-06T19:00:00.000Z	52 \| moderate	9.566 \| good	42.889 \| good	46.475 \| good	0.91 \| good	1.804 \| good	0.141 \| good
2025-06-06T20:00:00.000Z	49 \| good	8.553 \| good	37.112 \| good	45.626 \| good	1.073 \| good	1.801 \| good	0.139 \| good
2025-06-06T21:00:00.000Z	44 \| good	8.416 \| good	36.984 \| good	47.042 \| good	1.237 \| good	1.799 \| good	0.137 \| good
2025-06-06T22:00:00.000Z	44 \| good	7.369 \| good	32.049 \| good	48.007 \| good	1.325 \| good	7.427 \| good	0.185 \| good
2025-06-06T23:00:00.000Z	40 \| good	6.826 \| good	30.049 \| good	42.976 \| good	1.505 \| good	6.854 \| good	0.174 \| good
2025-06-07T00:00:00.000Z	33 \| good	6.21 \| good	27.871 \| good	33.412 \| good	1.685 \| good	6.281 \| good	0.163 \| good
2025-06-07T01:00:00.000Z	38 \| good	7.062 \| good	31.023 \| good	26.026 \| good	1.042 \| good	10.399 \| good	0.224 \| good
2025-06-07T02:00:00.000Z	38 \| good	7.301 \| good	32.091 \| good	18.682 \| good	1.083 \| good	11.201 \| good	0.218 \| good
2025-06-07T03:00:00.000Z	52 \| moderate	9.968 \| good	44.102 \| good	15.864 \| good	1.125 \| good	12.002 \| good	0.213 \| good
2025-06-07T04:00:00.000Z	52 \| moderate	10.124 \| good	44.924 \| good	15.437 \| good	1.07 \| good	14.591 \| good	0.277 \| good
2025-06-07T05:00:00.000Z	54 \| moderate	10.661 \| good	47.148 \| good	18.274 \| good	1.057 \| good	15.917 \| good	0.274 \| good
2025-06-07T06:00:00.000Z	52 \| moderate	9.692 \| good	43.083 \| good	19.146 \| good	1.043 \| good	17.243 \| good	0.271 \| good
2025-06-07T07:00:00.000Z	52 \| moderate	9.937 \| good	44.094 \| good	17.54 \| good	1.555 \| good	4.391 \| good	0.217 \| good
2025-06-07T08:00:00.000Z	52 \| moderate	9.774 \| good	43.039 \| good	16.461 \| good	1.601 \| good	5.588 \| good	0.22 \| good
2025-06-07T09:00:00.000Z	54 \| moderate	10.733 \| good	47.981 \| good	9.669 \| good	1.648 \| good	6.784 \| good	0.222 \| good
2025-06-07T10:00:00.000Z	49 \| good	9.106 \| good	40.65 \| good	13.727 \| good	1.978 \| good	3.156 \| good	0.225 \| good
2025-06-07T11:00:00.000Z	38 \| good	7.26 \| good	32.088 \| good	18.118 \| good	2.028 \| good	3.704 \| good	0.228 \| good
2025-06-07T12:00:00.000Z	38 \| good	7.046 \| good	31.245 \| good	22.515 \| good	2.078 \| good	4.252 \| good	0.23 \| good
2025-06-07T13:00:00.000Z	33 \| good	6.054 \| good	26.687 \| good	27.542 \| good	1.44 \| good	1.867 \| good	0.238 \| good
2025-06-07T14:00:00.000Z	38 \| good	7.492 \| good	32.894 \| good	39.744 \| good	1.672 \| good	2.073 \| good	0.237 \| good
2025-06-07T15:00:00.000Z	44 \| good	6.99 \| good	30.912 \| good	48.123 \| good	1.903 \| good	2.278 \| good	0.235 \| good
2025-06-07T16:00:00.000Z	45 \| good	7.592 \| good	33.803 \| good	49.413 \| good	0.567 \| good	1.042 \| good	0.223 \| good
2025-06-07T17:00:00.000Z	46 \| good	7.067 \| good	30.984 \| good	49.593 \| good	0.75 \| good	1.159 \| good	0.223 \| good
2025-06-07T18:00:00.000Z	49 \| good	8.712 \| good	37.984 \| good	50.74 \| good	0.933 \| good	1.277 \| good	0.223 \| good
2025-06-07T19:00:00.000Z	54 \| moderate	10.863 \| good	47.982 \| good	50.859 \| good	0.392 \| good	1.363 \| good	0.215 \| good
2025-06-07T20:00:00.000Z	56 \| moderate	12.486 \| fine	56.824 \| fine	51.097 \| good	0.532 \| good	1.51 \| good	0.216 \| good
2025-06-07T21:00:00.000Z	58 \| moderate	12.554 \| fine	56.96 \| fine	52.163 \| good	0.672 \| good	1.656 \| good	0.216 \| good
2025-06-07T22:00:00.000Z	54 \| moderate	10.725 \| good	47.749 \| good	49.2 \| good	0.516 \| good	6.507 \| good	0.263 \| good
2025-06-07T23:00:00.000Z	56 \| moderate	12.147 \| fine	54.576 \| good	41.249 \| good	0.643 \| good	7.084 \| good	0.263 \| good
2025-06-08T00:00:00.000Z	56 \| moderate	11.915 \| good	53.32 \| good	37.864 \| good	0.771 \| good	7.66 \| good	0.262 \| good
2025-06-08T01:00:00.000Z	58 \| moderate	13.37 \| fine	60.171 \| fine	32.434 \| good	0.863 \| good	8.966 \| good	0.29 \| good
2025-06-08T02:00:00.000Z	60 \| moderate	14.051 \| fine	62.655 \| fine	28.547 \| good	1.11 \| good	10.417 \| good	0.297 \| good
2025-06-08T03:00:00.000Z	62 \| moderate	14.763 \| fine	66.51 \| fine	27.597 \| good	1.357 \| good	11.868 \| good	0.303 \| good
2025-06-08T04:00:00.000Z	62 \| moderate	15.312 \| fine	68.827 \| fine	26.922 \| good	2.121 \| good	5.569 \| good	0.283 \| good
2025-06-08T05:00:00.000Z	66 \| moderate	17.142 \| fine	76.862 \| fine	24.811 \| good	2.182 \| good	6.136 \| good	0.284 \| good
2025-06-08T06:00:00.000Z	58 \| moderate	12.91 \| fine	13.12 \| good	35.809 \| good	2.261 \| good	6.715 \| good	0.285 \| good
2025-06-08T07:00:00.000Z	62 \| moderate	14.836 \| fine	65.762 \| fine	18.61 \| good	2.08 \| good	5.43 \| good	0.288 \| good
2025-06-08T08:00:00.000Z	62 \| moderate	14.634 \| fine	65.461 \| fine	19.414 \| good	2.035 \| good	5.902 \| good	0.288 \| good
2025-06-08T09:00:00.000Z	66 \| moderate	16.695 \| fine	73.429 \| fine	9.504 \| good	1.989 \| good	6.374 \| good	0.287 \| good
2025-06-08T10:00:00.000Z	66 \| moderate	17.28 \| fine	77.118 \| fine	9.372 \| good	2.202 \| good	5.879 \| good	0.305 \| good
2025-06-08T11:00:00.000Z	67 \| moderate	18.323 \| fine	81.205 \| fine	10.495 \| good	2.257 \| good	6.301 \| good	0.305 \| good

Ellicott City

Empower business decisions with accurate air quality data

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

0.36ppm

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

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Frequently asked questions

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

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

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

The worst air quality in Ellicott City, Maryland was recorded at 08:00:00 on 2025-06-05.

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

The best air quality in Ellicott City, Maryland was recorded at 05:00:00 on 2025-06-06.

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

The real-time air quality index in Ellicott City, Maryland is 58, currently categorized as Moderate.

Which pollutant is found most often in Ellicott City, Maryland?

The most common pollutant in Ellicott City, Maryland is PM2.5.

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

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

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

The measured PM_2.5 levels in Ellicott City, Maryland at present are 12.572 μg/m³.

What are the current PM₁₀ levels at Ellicott City, Maryland?

The current PM₁₀ levels in Ellicott City, Maryland are 57.786 μg/m³.

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

The current carbon monoxide (CO) level in Ellicott City, Maryland is 0.357 ppm.

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

The current sulfur dioxide (SO₂) levels in Ellicott City, Maryland are 0.194 ppb.

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

The current ozone (O₃) levels at Ellicott City, Maryland is 12.571 ppm.

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

The current nitrogen dioxide (NO₂) levels at Ellicott City, Maryland is 14.031 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-04T12:00:00.000Z	52 \| moderate	10.209 \| good	40.852 \| good	25.837 \| good	0.412 \| good	15.019 \| good	0.406 \| good
2025-06-04T13:00:00.000Z	52 \| moderate	10.263 \| good	45.052 \| good	35.657 \| good	2.74 \| good	2.411 \| good	0.247 \| good
2025-06-04T14:00:00.000Z	52 \| moderate	10.482 \| good	39.33 \| good	34.256 \| good	0.419 \| good	14.258 \| good	0.291 \| good
2025-06-04T15:00:00.000Z	54 \| moderate	10.955 \| good	29.492 \| good	35.782 \| good	0.336 \| good	11.917 \| good	0.267 \| good
2025-06-04T16:00:00.000Z	54 \| moderate	11.036 \| good	32.966 \| good	46.728 \| good	0.313 \| good	9.443 \| good	0.267 \| good
2025-06-04T17:00:00.000Z	60 \| moderate	13.95 \| fine	61.625 \| fine	51.054 \| good	0.289 \| good	8.176 \| good	0.267 \| good
2025-06-04T18:00:00.000Z	58 \| moderate	13.272 \| fine	40.776 \| good	53.792 \| good	0.216 \| good	5.454 \| good	0.254 \| good
2025-06-04T19:00:00.000Z	74 \| moderate	14.775 \| fine	66.488 \| fine	62.404 \| fine	0.231 \| good	4.245 \| good	0.254 \| good
2025-06-04T20:00:00.000Z	80 \| moderate	15.668 \| fine	67.976 \| fine	64.338 \| fine	0.464 \| good	4.418 \| good	0.267 \| good
2025-06-04T21:00:00.000Z	93 \| moderate	13.966 \| fine	61.524 \| fine	67.501 \| fine	0.354 \| good	4.494 \| good	0.243 \| good
2025-06-04T22:00:00.000Z	74 \| moderate	15.718 \| fine	73.057 \| fine	62.026 \| fine	0.261 \| good	4.99 \| good	0.243 \| good
2025-06-04T23:00:00.000Z	66 \| moderate	16.613 \| fine	74.543 \| fine	55.236 \| fine	0.21 \| good	6.871 \| good	0.243 \| good
2025-06-05T00:00:00.000Z	64 \| moderate	13.877 \| fine	59.357 \| fine	58.598 \| fine	0.223 \| good	6.545 \| good	0.305 \| good
2025-06-05T01:00:00.000Z	60 \| moderate	13.772 \| fine	62.133 \| fine	52.045 \| good	0.232 \| good	7.306 \| good	0.318 \| good
2025-06-05T02:00:00.000Z	60 \| moderate	14.123 \| fine	72.187 \| fine	51.467 \| good	0.207 \| good	9.725 \| good	0.318 \| good
2025-06-05T03:00:00.000Z	56 \| moderate	12.453 \| fine	58.445 \| fine	44.659 \| good	0.197 \| good	10.963 \| good	0.318 \| good
2025-06-05T04:00:00.000Z	60 \| moderate	13.697 \| fine	62.041 \| fine	41.231 \| good	0.187 \| good	10.779 \| good	0.28 \| good
2025-06-05T05:00:00.000Z	61 \| moderate	13.197 \| fine	75.23 \| fine	35.922 \| good	0.223 \| good	11.674 \| good	0.306 \| good
2025-06-05T06:00:00.000Z	60 \| moderate	13.165 \| fine	74.204 \| fine	31.874 \| good	0.21 \| good	12.481 \| good	0.242 \| good
2025-06-05T07:00:00.000Z	58 \| moderate	13.04 \| fine	58.225 \| fine	28.94 \| good	0.202 \| good	11.476 \| good	0.267 \| good
2025-06-05T08:00:00.000Z	54 \| moderate	11.447 \| good	39.585 \| good	34.831 \| good	0.303 \| good	12.361 \| good	0.267 \| good
2025-06-05T09:00:00.000Z	56 \| moderate	12.133 \| fine	50.894 \| good	26.556 \| good	0.301 \| good	13.738 \| good	0.28 \| good
2025-06-05T10:00:00.000Z	58 \| moderate	12.862 \| fine	54.801 \| good	22.114 \| good	0.182 \| good	11.753 \| good	0.304 \| good
2025-06-05T11:00:00.000Z	58 \| moderate	12.581 \| fine	46.668 \| good	22.222 \| good	0.304 \| good	13.022 \| good	0.253 \| good
2025-06-05T12:00:00.000Z	58 \| moderate	13.149 \| fine	57.2 \| fine	22.668 \| good	0.361 \| good	12.345 \| good	0.367 \| good
2025-06-05T13:00:00.000Z	56 \| moderate	11.913 \| good	50.24 \| good	26.723 \| good	0.345 \| good	11.223 \| good	0.254 \| good
2025-06-05T14:00:00.000Z	56 \| moderate	12.411 \| fine	54.81 \| good	33.612 \| good	0.254 \| good	11.419 \| good	0.254 \| good
2025-06-05T15:00:00.000Z	58 \| moderate	13.269 \| fine	53.353 \| good	33.372 \| good	0.399 \| good	9.37 \| good	0.254 \| good
2025-06-05T16:00:00.000Z	62 \| moderate	15.329 \| fine	58.085 \| fine	36.396 \| good	0.825 \| good	7.997 \| good	0.254 \| good
2025-06-05T17:00:00.000Z	69 \| moderate	19.295 \| fine	74.652 \| fine	47.13 \| good	0.775 \| good	5.98 \| good	0.254 \| good
2025-06-05T18:00:00.000Z	72 \| moderate	17.466 \| fine	97.744 \| fine	58.898 \| fine	0.428 \| good	4.887 \| good	0.23 \| good
2025-06-05T19:00:00.000Z	73 \| moderate	21.454 \| fine	87.036 \| fine	57.026 \| fine	0.285 \| good	4.361 \| good	0.23 \| good
2025-06-05T20:00:00.000Z	87 \| moderate	19.821 \| fine	63.864 \| fine	65.938 \| fine	0.226 \| good	3.998 \| good	0.192 \| good
2025-06-05T21:00:00.000Z	77 \| moderate	19.646 \| fine	94.924 \| fine	63.136 \| fine	0.253 \| good	4.461 \| good	0.254 \| good
2025-06-05T22:00:00.000Z	73 \| moderate	21.081 \| fine	93.065 \| fine	56.821 \| fine	0.237 \| good	5.187 \| good	0.243 \| good
2025-06-05T23:00:00.000Z	60 \| moderate	14.08 \| fine	53.717 \| good	52.69 \| good	0.87 \| good	6.635 \| good	0.243 \| good
2025-06-06T00:00:00.000Z	60 \| moderate	14.375 \| fine	51.915 \| good	44.121 \| good	0.352 \| good	4.076 \| good	0.243 \| good
2025-06-06T01:00:00.000Z	52 \| moderate	10.218 \| good	54.135 \| good	39.287 \| good	0.279 \| good	7.648 \| good	0.243 \| good
2025-06-06T02:00:00.000Z	54 \| moderate	11.441 \| good	48.476 \| good	40.943 \| good	0.194 \| good	7.499 \| good	0.256 \| good
2025-06-06T03:00:00.000Z	54 \| moderate	11.234 \| good	48.236 \| good	36.327 \| good	0.247 \| good	8.224 \| good	0.293 \| good
2025-06-06T04:00:00.000Z	54 \| moderate	11.138 \| good	42.719 \| good	33.019 \| good	0.192 \| good	9.412 \| good	0.256 \| good
2025-06-06T05:00:00.000Z	52 \| moderate	10.371 \| good	45.068 \| good	31.419 \| good	0.193 \| good	17.632 \| good	0.293 \| good
2025-06-06T06:00:00.000Z	54 \| moderate	11.126 \| good	51.727 \| good	32.848 \| good	0.157 \| good	13.34 \| good	0.256 \| good
2025-06-06T07:00:00.000Z	56 \| moderate	11.586 \| good	60.576 \| fine	28.137 \| good	0.17 \| good	10.405 \| good	0.256 \| good
2025-06-06T08:00:00.000Z	58 \| moderate	12.808 \| fine	48.145 \| good	26.185 \| good	0.177 \| good	11.37 \| good	0.242 \| good
2025-06-06T09:00:00.000Z	60 \| moderate	13.646 \| fine	49.248 \| good	17.912 \| good	0.171 \| good	13.419 \| good	0.28 \| good
2025-06-06T10:00:00.000Z	58 \| moderate	12.572 \| fine	57.786 \| fine	12.571 \| good	0.194 \| good	14.031 \| good	0.357 \| good
2025-06-06T11:00:00.000Z	60 \| moderate	14.074 \| fine	65.329 \| fine	10.843 \| good	0.194 \| good	13.875 \| good	0.28 \| good
2025-06-06T11:00:00.000Z	58 \| moderate	12.572 \| fine	57.786 \| fine	12.571 \| good	0.194 \| good	14.031 \| good	0.357 \| good
2025-06-06T12:00:00.000Z	52 \| moderate	10.222 \| good	45.178 \| good	26.311 \| good	1.927 \| good	6.034 \| good	0.204 \| good
2025-06-06T13:00:00.000Z	49 \| good	9.35 \| good	41.879 \| good	33.548 \| good	1.86 \| good	2.945 \| good	0.184 \| good
2025-06-06T14:00:00.000Z	54 \| moderate	11.372 \| good	50.006 \| good	41.883 \| good	2.238 \| good	3.571 \| good	0.183 \| good
2025-06-06T15:00:00.000Z	52 \| moderate	9.719 \| good	42.931 \| good	49.747 \| good	2.617 \| good	4.196 \| good	0.182 \| good
2025-06-06T16:00:00.000Z	49 \| good	9.364 \| good	41.989 \| good	50.918 \| good	1.31 \| good	1.329 \| good	0.153 \| good
2025-06-06T17:00:00.000Z	46 \| good	8.38 \| good	36.831 \| good	49.511 \| good	1.533 \| good	1.389 \| good	0.151 \| good
2025-06-06T18:00:00.000Z	44 \| good	8.221 \| good	35.926 \| good	48.146 \| good	1.756 \| good	1.449 \| good	0.149 \| good
2025-06-06T19:00:00.000Z	52 \| moderate	9.566 \| good	42.889 \| good	46.475 \| good	0.91 \| good	1.804 \| good	0.141 \| good
2025-06-06T20:00:00.000Z	49 \| good	8.553 \| good	37.112 \| good	45.626 \| good	1.073 \| good	1.801 \| good	0.139 \| good
2025-06-06T21:00:00.000Z	44 \| good	8.416 \| good	36.984 \| good	47.042 \| good	1.237 \| good	1.799 \| good	0.137 \| good
2025-06-06T22:00:00.000Z	44 \| good	7.369 \| good	32.049 \| good	48.007 \| good	1.325 \| good	7.427 \| good	0.185 \| good
2025-06-06T23:00:00.000Z	40 \| good	6.826 \| good	30.049 \| good	42.976 \| good	1.505 \| good	6.854 \| good	0.174 \| good
2025-06-07T00:00:00.000Z	33 \| good	6.21 \| good	27.871 \| good	33.412 \| good	1.685 \| good	6.281 \| good	0.163 \| good
2025-06-07T01:00:00.000Z	38 \| good	7.062 \| good	31.023 \| good	26.026 \| good	1.042 \| good	10.399 \| good	0.224 \| good
2025-06-07T02:00:00.000Z	38 \| good	7.301 \| good	32.091 \| good	18.682 \| good	1.083 \| good	11.201 \| good	0.218 \| good
2025-06-07T03:00:00.000Z	52 \| moderate	9.968 \| good	44.102 \| good	15.864 \| good	1.125 \| good	12.002 \| good	0.213 \| good
2025-06-07T04:00:00.000Z	52 \| moderate	10.124 \| good	44.924 \| good	15.437 \| good	1.07 \| good	14.591 \| good	0.277 \| good
2025-06-07T05:00:00.000Z	54 \| moderate	10.661 \| good	47.148 \| good	18.274 \| good	1.057 \| good	15.917 \| good	0.274 \| good
2025-06-07T06:00:00.000Z	52 \| moderate	9.692 \| good	43.083 \| good	19.146 \| good	1.043 \| good	17.243 \| good	0.271 \| good
2025-06-07T07:00:00.000Z	52 \| moderate	9.937 \| good	44.094 \| good	17.54 \| good	1.555 \| good	4.391 \| good	0.217 \| good
2025-06-07T08:00:00.000Z	52 \| moderate	9.774 \| good	43.039 \| good	16.461 \| good	1.601 \| good	5.588 \| good	0.22 \| good
2025-06-07T09:00:00.000Z	54 \| moderate	10.733 \| good	47.981 \| good	9.669 \| good	1.648 \| good	6.784 \| good	0.222 \| good
2025-06-07T10:00:00.000Z	49 \| good	9.106 \| good	40.65 \| good	13.727 \| good	1.978 \| good	3.156 \| good	0.225 \| good
2025-06-07T11:00:00.000Z	38 \| good	7.26 \| good	32.088 \| good	18.118 \| good	2.028 \| good	3.704 \| good	0.228 \| good
2025-06-07T12:00:00.000Z	38 \| good	7.046 \| good	31.245 \| good	22.515 \| good	2.078 \| good	4.252 \| good	0.23 \| good
2025-06-07T13:00:00.000Z	33 \| good	6.054 \| good	26.687 \| good	27.542 \| good	1.44 \| good	1.867 \| good	0.238 \| good
2025-06-07T14:00:00.000Z	38 \| good	7.492 \| good	32.894 \| good	39.744 \| good	1.672 \| good	2.073 \| good	0.237 \| good
2025-06-07T15:00:00.000Z	44 \| good	6.99 \| good	30.912 \| good	48.123 \| good	1.903 \| good	2.278 \| good	0.235 \| good
2025-06-07T16:00:00.000Z	45 \| good	7.592 \| good	33.803 \| good	49.413 \| good	0.567 \| good	1.042 \| good	0.223 \| good
2025-06-07T17:00:00.000Z	46 \| good	7.067 \| good	30.984 \| good	49.593 \| good	0.75 \| good	1.159 \| good	0.223 \| good
2025-06-07T18:00:00.000Z	49 \| good	8.712 \| good	37.984 \| good	50.74 \| good	0.933 \| good	1.277 \| good	0.223 \| good
2025-06-07T19:00:00.000Z	54 \| moderate	10.863 \| good	47.982 \| good	50.859 \| good	0.392 \| good	1.363 \| good	0.215 \| good
2025-06-07T20:00:00.000Z	56 \| moderate	12.486 \| fine	56.824 \| fine	51.097 \| good	0.532 \| good	1.51 \| good	0.216 \| good
2025-06-07T21:00:00.000Z	58 \| moderate	12.554 \| fine	56.96 \| fine	52.163 \| good	0.672 \| good	1.656 \| good	0.216 \| good
2025-06-07T22:00:00.000Z	54 \| moderate	10.725 \| good	47.749 \| good	49.2 \| good	0.516 \| good	6.507 \| good	0.263 \| good
2025-06-07T23:00:00.000Z	56 \| moderate	12.147 \| fine	54.576 \| good	41.249 \| good	0.643 \| good	7.084 \| good	0.263 \| good
2025-06-08T00:00:00.000Z	56 \| moderate	11.915 \| good	53.32 \| good	37.864 \| good	0.771 \| good	7.66 \| good	0.262 \| good
2025-06-08T01:00:00.000Z	58 \| moderate	13.37 \| fine	60.171 \| fine	32.434 \| good	0.863 \| good	8.966 \| good	0.29 \| good
2025-06-08T02:00:00.000Z	60 \| moderate	14.051 \| fine	62.655 \| fine	28.547 \| good	1.11 \| good	10.417 \| good	0.297 \| good
2025-06-08T03:00:00.000Z	62 \| moderate	14.763 \| fine	66.51 \| fine	27.597 \| good	1.357 \| good	11.868 \| good	0.303 \| good
2025-06-08T04:00:00.000Z	62 \| moderate	15.312 \| fine	68.827 \| fine	26.922 \| good	2.121 \| good	5.569 \| good	0.283 \| good
2025-06-08T05:00:00.000Z	66 \| moderate	17.142 \| fine	76.862 \| fine	24.811 \| good	2.182 \| good	6.136 \| good	0.284 \| good
2025-06-08T06:00:00.000Z	58 \| moderate	12.91 \| fine	13.12 \| good	35.809 \| good	2.261 \| good	6.715 \| good	0.285 \| good
2025-06-08T07:00:00.000Z	62 \| moderate	14.836 \| fine	65.762 \| fine	18.61 \| good	2.08 \| good	5.43 \| good	0.288 \| good
2025-06-08T08:00:00.000Z	62 \| moderate	14.634 \| fine	65.461 \| fine	19.414 \| good	2.035 \| good	5.902 \| good	0.288 \| good
2025-06-08T09:00:00.000Z	66 \| moderate	16.695 \| fine	73.429 \| fine	9.504 \| good	1.989 \| good	6.374 \| good	0.287 \| good
2025-06-08T10:00:00.000Z	66 \| moderate	17.28 \| fine	77.118 \| fine	9.372 \| good	2.202 \| good	5.879 \| good	0.305 \| good
2025-06-08T11:00:00.000Z	67 \| moderate	18.323 \| fine	81.205 \| fine	10.495 \| good	2.257 \| good	6.301 \| good	0.305 \| good

Live air quality index in Ellicott City, Maryland today

Major air pollutants in Ellicott City, Maryland

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Ellicott City, Maryland air quality forecast and history

Empower business decisions with accurate air quality data

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

Air quality in nearby cities

Ilchester, Maryland

Catonsville, Maryland

Elkridge, Maryland

Arbutus, Maryland

Columbia, Maryland

Milford Mill, 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 Ellicott City, Maryland updated?

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

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

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

Which pollutant is found most often in Ellicott City, Maryland?

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

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

What are the current PM10 levels at Ellicott City, Maryland?

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

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

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

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

What are the current PM₁₀ levels at Ellicott City, Maryland?

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

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

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