What are the current PM10 levels at Halfway, Maryland?

The current PM10 levels in Halfway, Maryland are 35.184 μg/m3.

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

The current sulfur dioxide (SO2) levels in Halfway, Maryland are 0.186 ppb.

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

The current ozone (O3) levels at Halfway, Maryland is 51.759 ppm.

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

The current nitrogen dioxide (NO2) levels at Halfway, Maryland is 2.547 ppb.

Real-time air quality index in Halfway, Maryland today

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

Stay updated with real-time air quality in Halfway, 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

Halfway, Maryland

Last updated: ... (Local time)

Common air pollutants in Halfway, Maryland

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

7.51 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

33.53 μg/m³

155

255

425

605+

Ozone (O₃)

37.48 ppb

201

201+

Sulfur Dioxide (SO₂)

0.20 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.78 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.28 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

Halfway, Maryland

Get Live Pollen Counts

Halfway, Maryland

Scroll To Air Quality Map

Track live Halfway, Maryland air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-07-25T05:00:00.000Z	49 \| good	9.086 \| good	39.583 \| good	30.892 \| good	0.359 \| good	2.754 \| good	0.279 \| good
2025-07-25T06:00:00.000Z	52 \| moderate	10.406 \| good	45.329 \| good	27.838 \| good	0.294 \| good	1.986 \| good	0.3 \| good
2025-07-25T07:00:00.000Z	52 \| moderate	10.294 \| good	44.751 \| good	26.516 \| good	0.548 \| good	3.214 \| good	0.28 \| good
2025-07-25T08:00:00.000Z	52 \| moderate	10.479 \| good	45.79 \| good	22.53 \| good	0.363 \| good	4.43 \| good	0.28 \| good
2025-07-25T09:00:00.000Z	52 \| moderate	10.009 \| good	44.173 \| good	21.337 \| good	0.348 \| good	5.297 \| good	0.26 \| good
2025-07-25T10:00:00.000Z	52 \| moderate	9.773 \| good	42.887 \| good	21.848 \| good	0.245 \| good	5.395 \| good	0.298 \| good
2025-07-25T11:00:00.000Z	52 \| moderate	9.9 \| good	43.303 \| good	24.577 \| good	0.245 \| good	5.546 \| good	0.298 \| good
2025-07-25T12:00:00.000Z	52 \| moderate	9.925 \| good	43.644 \| good	23.812 \| good	0.219 \| good	6.878 \| good	0.298 \| good
2025-07-25T13:00:00.000Z	52 \| moderate	10.035 \| good	43.748 \| good	24.008 \| good	0.267 \| good	6.425 \| good	0.338 \| good
2025-07-25T14:00:00.000Z	52 \| moderate	10.193 \| good	44.529 \| good	26.338 \| good	0.248 \| good	5.821 \| good	0.338 \| good
2025-07-25T15:00:00.000Z	52 \| moderate	9.622 \| good	42.985 \| good	31.259 \| good	0.298 \| good	3.524 \| good	0.32 \| good
2025-07-25T16:00:00.000Z	52 \| moderate	9.646 \| good	42.187 \| good	36.582 \| good	0.272 \| good	2.842 \| good	0.28 \| good
2025-07-25T17:00:00.000Z	52 \| moderate	9.707 \| good	42.523 \| good	40.671 \| good	0.28 \| good	2.547 \| good	0.26 \| good
2025-07-25T18:00:00.000Z	49 \| good	9.266 \| good	39.122 \| good	44.462 \| good	0.259 \| good	2.692 \| good	0.201 \| good
2025-07-25T19:00:00.000Z	52 \| moderate	10.137 \| good	44.617 \| good	48.336 \| good	0.225 \| good	2.214 \| good	0.201 \| good
2025-07-25T20:00:00.000Z	52 \| moderate	10.02 \| good	44.648 \| good	46.671 \| good	0.209 \| good	2.005 \| good	0.201 \| good
2025-07-25T21:00:00.000Z	52 \| moderate	10.32 \| good	44.76 \| good	45.684 \| good	0.185 \| good	2.079 \| good	0.201 \| good
2025-07-25T22:00:00.000Z	56 \| moderate	12.463 \| fine	55.367 \| fine	44.894 \| good	0.21 \| good	3.521 \| good	0.22 \| good
2025-07-25T23:00:00.000Z	54 \| moderate	10.831 \| good	47.221 \| good	42.132 \| good	0.239 \| good	3.332 \| good	0.22 \| good
2025-07-26T00:00:00.000Z	49 \| good	9.361 \| good	41.153 \| good	40.927 \| good	0.209 \| good	3.383 \| good	0.259 \| good
2025-07-26T01:00:00.000Z	49 \| good	8.691 \| good	37.388 \| good	39.685 \| good	0.222 \| good	3.217 \| good	0.201 \| good
2025-07-26T02:00:00.000Z	49 \| good	8.817 \| good	38.304 \| good	37.801 \| good	0.249 \| good	4.843 \| good	0.22 \| good
2025-07-26T03:00:00.000Z	49 \| good	8.874 \| good	38.363 \| good	33.941 \| good	0.274 \| good	6.152 \| good	0.22 \| good
2025-07-26T04:00:00.000Z	38 \| good	7.447 \| good	32.558 \| good	29.306 \| good	0.299 \| good	4.617 \| good	0.279 \| good
2025-07-26T05:00:00.000Z	44 \| good	8.313 \| good	35.965 \| good	26.024 \| good	0.247 \| good	4.813 \| good	0.317 \| good
2025-07-26T06:00:00.000Z	44 \| good	7.53 \| good	32.977 \| good	18.641 \| good	0.245 \| good	4.582 \| good	0.317 \| good
2025-07-26T07:00:00.000Z	33 \| good	5.979 \| good	25.312 \| good	13.054 \| good	0.183 \| good	4.264 \| good	0.277 \| good
2025-07-26T08:00:00.000Z	33 \| good	5.961 \| good	26.761 \| good	12.239 \| good	0.179 \| good	3.852 \| good	0.279 \| good
2025-07-26T09:00:00.000Z	33 \| good	6.147 \| good	26.979 \| good	13.774 \| good	0.176 \| good	6.89 \| good	0.26 \| good
2025-07-26T10:00:00.000Z	38 \| good	7.079 \| good	30.815 \| good	13.465 \| good	0.191 \| good	6.026 \| good	0.298 \| good
2025-07-26T11:00:00.000Z	38 \| good	7.132 \| good	30.824 \| good	11.571 \| good	0.219 \| good	5.809 \| good	0.278 \| good
2025-07-26T12:00:00.000Z	33 \| good	6.133 \| good	27.357 \| good	15.022 \| good	0.163 \| good	4.526 \| good	0.278 \| good
2025-07-26T13:00:00.000Z	44 \| good	7.579 \| good	32.839 \| good	18.738 \| good	0.231 \| good	3.299 \| good	0.239 \| good
2025-07-26T14:00:00.000Z	49 \| good	8.763 \| good	37.065 \| good	25.352 \| good	0.513 \| good	2.81 \| good	0.22 \| good
2025-07-26T15:00:00.000Z	44 \| good	7.921 \| good	33.34 \| good	31.521 \| good	0.32 \| good	2.038 \| good	0.221 \| good
2025-07-26T16:00:00.000Z	38 \| good	6.525 \| good	28.192 \| good	35.911 \| good	0.3 \| good	1.85 \| good	0.221 \| good
2025-07-26T17:00:00.000Z	37 \| good	5.49 \| good	23.598 \| good	40.234 \| good	0.217 \| good	2.076 \| good	0.201 \| good
2025-07-26T18:00:00.000Z	44 \| good	4.418 \| good	18.575 \| good	46.711 \| good	0.262 \| good	1.457 \| good	0.201 \| good
2025-07-26T19:00:00.000Z	45 \| good	3.892 \| good	17.026 \| good	48.611 \| good	0.146 \| good	2.597 \| good	0.201 \| good
2025-07-26T20:00:00.000Z	44 \| good	4.934 \| good	21.744 \| good	46.881 \| good	0.158 \| good	2.046 \| good	0.241 \| good
2025-07-26T21:00:00.000Z	45 \| good	6.342 \| good	27.006 \| good	48.541 \| good	0.194 \| good	2.098 \| good	0.241 \| good
2025-07-26T22:00:00.000Z	44 \| good	7.865 \| good	34.078 \| good	47.225 \| good	0.211 \| good	1.843 \| good	0.241 \| good
2025-07-26T23:00:00.000Z	49 \| good	8.641 \| good	41.026 \| good	43.793 \| good	0.148 \| good	2.539 \| good	0.241 \| good
2025-07-27T00:00:00.000Z	49 \| good	8.639 \| good	40.705 \| good	44.619 \| good	0.166 \| good	3.082 \| good	0.281 \| good
2025-07-27T01:00:00.000Z	49 \| good	9.236 \| good	41.444 \| good	43.671 \| good	0.215 \| good	2.703 \| good	0.319 \| good
2025-07-27T02:00:00.000Z	49 \| good	8.957 \| good	40.327 \| good	40.598 \| good	0.181 \| good	3.601 \| good	0.279 \| good
2025-07-27T03:00:00.000Z	44 \| good	7.511 \| good	33.533 \| good	37.482 \| good	0.201 \| good	4.784 \| good	0.279 \| good
2025-07-27T04:00:00.000Z	44 \| good	7.511 \| good	33.533 \| good	37.482 \| good	0.201 \| good	4.784 \| good	0.279 \| good
2025-07-22T23:00:00.000Z	39 \| good	4.574 \| good	19.873 \| good	41.945 \| good	1.451 \| good	2.244 \| good	0.204 \| good
2025-07-23T00:00:00.000Z	31 \| good	4.673 \| good	20.375 \| good	32.522 \| good	1.437 \| good	2.953 \| good	0.212 \| good
2025-07-23T01:00:00.000Z	27 \| good	4.585 \| good	19.86 \| good	27.702 \| good	1.468 \| good	4.269 \| good	0.228 \| good
2025-07-23T02:00:00.000Z	27 \| good	5.262 \| good	22.592 \| good	20.899 \| good	1.498 \| good	5.585 \| good	0.245 \| good
2025-07-23T03:00:00.000Z	33 \| good	5.864 \| good	25.565 \| good	15.11 \| good	1.529 \| good	6.901 \| good	0.262 \| good
2025-07-23T04:00:00.000Z	33 \| good	6.308 \| good	28.349 \| good	15.819 \| good	1.564 \| good	6.952 \| good	0.263 \| good
2025-07-23T05:00:00.000Z	49 \| good	8.947 \| good	39.307 \| good	19.532 \| good	1.599 \| good	7.003 \| good	0.263 \| good
2025-07-23T06:00:00.000Z	38 \| good	7.259 \| good	31.777 \| good	18.911 \| good	1.634 \| good	7.054 \| good	0.264 \| good
2025-07-23T07:00:00.000Z	52 \| moderate	9.607 \| good	42.51 \| good	16.588 \| good	1.604 \| good	6.657 \| good	0.258 \| good
2025-07-23T08:00:00.000Z	52 \| moderate	10.178 \| good	45.155 \| good	17.909 \| good	1.573 \| good	6.261 \| good	0.251 \| good
2025-07-23T09:00:00.000Z	58 \| moderate	12.51 \| fine	55.647 \| fine	19.797 \| good	1.543 \| good	5.865 \| good	0.245 \| good
2025-07-23T10:00:00.000Z	60 \| moderate	13.665 \| fine	60.76 \| fine	17.354 \| good	1.566 \| good	5.34 \| good	0.24 \| good
2025-07-23T11:00:00.000Z	64 \| moderate	16.179 \| fine	72.288 \| fine	17.153 \| good	1.59 \| good	4.814 \| good	0.236 \| good
2025-07-23T12:00:00.000Z	58 \| moderate	13.202 \| fine	59.282 \| fine	23.66 \| good	1.614 \| good	4.289 \| good	0.232 \| good
2025-07-23T13:00:00.000Z	52 \| moderate	9.731 \| good	43.263 \| good	27.17 \| good	1.522 \| good	3.229 \| good	0.222 \| good
2025-07-23T14:00:00.000Z	58 \| moderate	12.501 \| fine	55.962 \| fine	37.34 \| good	1.431 \| good	2.169 \| good	0.212 \| good
2025-07-23T15:00:00.000Z	56 \| moderate	12.155 \| fine	54.615 \| good	46.543 \| good	1.34 \| good	1.109 \| good	0.203 \| good
2025-07-23T16:00:00.000Z	58 \| moderate	13.131 \| fine	59.116 \| fine	52.366 \| good	1.263 \| good	1.007 \| good	0.204 \| good
2025-07-23T17:00:00.000Z	58 \| moderate	12.569 \| fine	56.772 \| fine	54.479 \| good	1.186 \| good	0.904 \| good	0.205 \| good
2025-07-23T18:00:00.000Z	52 \| moderate	10.5 \| good	46.532 \| good	53.079 \| good	1.108 \| good	0.801 \| good	0.206 \| good
2025-07-23T19:00:00.000Z	52 \| moderate	10.104 \| good	44.843 \| good	50.48 \| good	1.092 \| good	0.854 \| good	0.206 \| good
2025-07-23T20:00:00.000Z	56 \| moderate	12.054 \| good	53.89 \| good	51.013 \| good	1.075 \| good	0.907 \| good	0.207 \| good
2025-07-23T21:00:00.000Z	58 \| moderate	13.264 \| fine	60.127 \| fine	47.691 \| good	1.059 \| good	0.959 \| good	0.208 \| good
2025-07-23T22:00:00.000Z	58 \| moderate	13.2 \| fine	59.255 \| fine	48.144 \| good	1.17 \| good	1.491 \| good	0.213 \| good
2025-07-23T23:00:00.000Z	54 \| moderate	10.938 \| good	48.349 \| good	46.324 \| good	1.28 \| good	2.024 \| good	0.218 \| good
2025-07-24T00:00:00.000Z	56 \| moderate	12.037 \| good	53.967 \| good	36.534 \| good	1.391 \| good	2.556 \| good	0.223 \| good
2025-07-24T01:00:00.000Z	56 \| moderate	12.385 \| fine	55.205 \| fine	33.983 \| good	1.616 \| good	3.211 \| good	0.227 \| good
2025-07-24T02:00:00.000Z	56 \| moderate	11.528 \| good	51.273 \| good	28.39 \| good	1.841 \| good	3.866 \| good	0.23 \| good
2025-07-24T03:00:00.000Z	49 \| good	9.167 \| good	41.22 \| good	23.453 \| good	2.066 \| good	4.521 \| good	0.234 \| good
2025-07-24T04:00:00.000Z	38 \| good	7.229 \| good	31.843 \| good	21.331 \| good	1.905 \| good	4.297 \| good	0.227 \| good
2025-07-24T05:00:00.000Z	38 \| good	6.914 \| good	30.667 \| good	22.492 \| good	1.744 \| good	4.074 \| good	0.219 \| good
2025-07-24T06:00:00.000Z	27 \| good	4.952 \| good	21.428 \| good	18.382 \| good	1.582 \| good	3.851 \| good	0.211 \| good
2025-07-24T07:00:00.000Z	44 \| good	7.523 \| good	32.88 \| good	17.285 \| good	1.432 \| good	3.587 \| good	0.208 \| good
2025-07-24T08:00:00.000Z	38 \| good	7.166 \| good	31.407 \| good	19.533 \| good	1.281 \| good	3.323 \| good	0.205 \| good
2025-07-24T09:00:00.000Z	33 \| good	5.801 \| good	25.393 \| good	16.952 \| good	1.13 \| good	3.06 \| good	0.202 \| good
2025-07-24T10:00:00.000Z	44 \| good	8.31 \| good	36.432 \| good	16.741 \| good	1.152 \| good	2.828 \| good	0.204 \| good
2025-07-24T11:00:00.000Z	52 \| moderate	9.554 \| good	42.407 \| good	17.021 \| good	1.173 \| good	2.596 \| good	0.206 \| good
2025-07-24T12:00:00.000Z	54 \| moderate	10.66 \| good	47.255 \| good	21.56 \| good	1.195 \| good	2.365 \| good	0.208 \| good
2025-07-24T13:00:00.000Z	52 \| moderate	10.282 \| good	45.481 \| good	25.518 \| good	1.16 \| good	1.885 \| good	0.203 \| good
2025-07-24T14:00:00.000Z	49 \| good	8.617 \| good	37.889 \| good	31.598 \| good	1.124 \| good	1.406 \| good	0.198 \| good
2025-07-24T15:00:00.000Z	44 \| good	8.253 \| good	36.255 \| good	39.211 \| good	1.088 \| good	0.927 \| good	0.194 \| good
2025-07-24T16:00:00.000Z	44 \| good	8.473 \| good	36.935 \| good	41.594 \| good	0.989 \| good	0.834 \| good	0.192 \| good
2025-07-24T17:00:00.000Z	38 \| good	4.992 \| good	21.676 \| good	41.315 \| good	0.89 \| good	0.741 \| good	0.191 \| good
2025-07-24T18:00:00.000Z	38 \| good	5.497 \| good	23.743 \| good	41.153 \| good	0.791 \| good	0.648 \| good	0.189 \| good
2025-07-24T19:00:00.000Z	37 \| good	5.11 \| good	22.246 \| good	40.336 \| good	0.74 \| good	0.708 \| good	0.19 \| good
2025-07-24T20:00:00.000Z	34 \| good	5.428 \| good	23.533 \| good	37.28 \| good	0.688 \| good	0.768 \| good	0.191 \| good
2025-07-24T21:00:00.000Z	33 \| good	5.88 \| good	25.664 \| good	35.928 \| good	0.637 \| good	0.828 \| good	0.192 \| good
2025-07-24T22:00:00.000Z	31 \| good	4.809 \| good	20.859 \| good	33.966 \| good	0.609 \| good	1.248 \| good	0.194 \| good

Halfway

Empower business decisions with accurate air quality data

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

0.26ppm

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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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 Halfway, Maryland updated?

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

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

The worst air quality in Halfway, Maryland was recorded at 06:00:00 on 2025-07-22.

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

The best air quality in Halfway, Maryland was recorded at 11:00:00 on 2025-07-21.

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

The real-time air quality index in Halfway, Maryland is 48, currently categorized as Good.

Which pollutant is found most often in Halfway, Maryland?

The most common pollutant in Halfway, Maryland is O3.

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

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

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

The measured PM_2.5 levels in Halfway, Maryland at present are 8.181 μg/m³.

What are the current PM₁₀ levels at Halfway, Maryland?

The current PM₁₀ levels in Halfway, Maryland are 35.184 μg/m³.

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

The current carbon monoxide (CO) level in Halfway, Maryland is 0.278 ppm.

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

The current sulfur dioxide (SO₂) levels in Halfway, Maryland are 0.186 ppb.

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

The current ozone (O₃) levels at Halfway, Maryland is 51.759 ppm.

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

The current nitrogen dioxide (NO₂) levels at Halfway, Maryland is 2.547 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-07-25T05:00:00.000Z	49 \| good	9.086 \| good	39.583 \| good	30.892 \| good	0.359 \| good	2.754 \| good	0.279 \| good
2025-07-25T06:00:00.000Z	52 \| moderate	10.406 \| good	45.329 \| good	27.838 \| good	0.294 \| good	1.986 \| good	0.3 \| good
2025-07-25T07:00:00.000Z	52 \| moderate	10.294 \| good	44.751 \| good	26.516 \| good	0.548 \| good	3.214 \| good	0.28 \| good
2025-07-25T08:00:00.000Z	52 \| moderate	10.479 \| good	45.79 \| good	22.53 \| good	0.363 \| good	4.43 \| good	0.28 \| good
2025-07-25T09:00:00.000Z	52 \| moderate	10.009 \| good	44.173 \| good	21.337 \| good	0.348 \| good	5.297 \| good	0.26 \| good
2025-07-25T10:00:00.000Z	52 \| moderate	9.773 \| good	42.887 \| good	21.848 \| good	0.245 \| good	5.395 \| good	0.298 \| good
2025-07-25T11:00:00.000Z	52 \| moderate	9.9 \| good	43.303 \| good	24.577 \| good	0.245 \| good	5.546 \| good	0.298 \| good
2025-07-25T12:00:00.000Z	52 \| moderate	9.925 \| good	43.644 \| good	23.812 \| good	0.219 \| good	6.878 \| good	0.298 \| good
2025-07-25T13:00:00.000Z	52 \| moderate	10.035 \| good	43.748 \| good	24.008 \| good	0.267 \| good	6.425 \| good	0.338 \| good
2025-07-25T14:00:00.000Z	52 \| moderate	10.193 \| good	44.529 \| good	26.338 \| good	0.248 \| good	5.821 \| good	0.338 \| good
2025-07-25T15:00:00.000Z	52 \| moderate	9.622 \| good	42.985 \| good	31.259 \| good	0.298 \| good	3.524 \| good	0.32 \| good
2025-07-25T16:00:00.000Z	52 \| moderate	9.646 \| good	42.187 \| good	36.582 \| good	0.272 \| good	2.842 \| good	0.28 \| good
2025-07-25T17:00:00.000Z	52 \| moderate	9.707 \| good	42.523 \| good	40.671 \| good	0.28 \| good	2.547 \| good	0.26 \| good
2025-07-25T18:00:00.000Z	49 \| good	9.266 \| good	39.122 \| good	44.462 \| good	0.259 \| good	2.692 \| good	0.201 \| good
2025-07-25T19:00:00.000Z	52 \| moderate	10.137 \| good	44.617 \| good	48.336 \| good	0.225 \| good	2.214 \| good	0.201 \| good
2025-07-25T20:00:00.000Z	52 \| moderate	10.02 \| good	44.648 \| good	46.671 \| good	0.209 \| good	2.005 \| good	0.201 \| good
2025-07-25T21:00:00.000Z	52 \| moderate	10.32 \| good	44.76 \| good	45.684 \| good	0.185 \| good	2.079 \| good	0.201 \| good
2025-07-25T22:00:00.000Z	56 \| moderate	12.463 \| fine	55.367 \| fine	44.894 \| good	0.21 \| good	3.521 \| good	0.22 \| good
2025-07-25T23:00:00.000Z	54 \| moderate	10.831 \| good	47.221 \| good	42.132 \| good	0.239 \| good	3.332 \| good	0.22 \| good
2025-07-26T00:00:00.000Z	49 \| good	9.361 \| good	41.153 \| good	40.927 \| good	0.209 \| good	3.383 \| good	0.259 \| good
2025-07-26T01:00:00.000Z	49 \| good	8.691 \| good	37.388 \| good	39.685 \| good	0.222 \| good	3.217 \| good	0.201 \| good
2025-07-26T02:00:00.000Z	49 \| good	8.817 \| good	38.304 \| good	37.801 \| good	0.249 \| good	4.843 \| good	0.22 \| good
2025-07-26T03:00:00.000Z	49 \| good	8.874 \| good	38.363 \| good	33.941 \| good	0.274 \| good	6.152 \| good	0.22 \| good
2025-07-26T04:00:00.000Z	38 \| good	7.447 \| good	32.558 \| good	29.306 \| good	0.299 \| good	4.617 \| good	0.279 \| good
2025-07-26T05:00:00.000Z	44 \| good	8.313 \| good	35.965 \| good	26.024 \| good	0.247 \| good	4.813 \| good	0.317 \| good
2025-07-26T06:00:00.000Z	44 \| good	7.53 \| good	32.977 \| good	18.641 \| good	0.245 \| good	4.582 \| good	0.317 \| good
2025-07-26T07:00:00.000Z	33 \| good	5.979 \| good	25.312 \| good	13.054 \| good	0.183 \| good	4.264 \| good	0.277 \| good
2025-07-26T08:00:00.000Z	33 \| good	5.961 \| good	26.761 \| good	12.239 \| good	0.179 \| good	3.852 \| good	0.279 \| good
2025-07-26T09:00:00.000Z	33 \| good	6.147 \| good	26.979 \| good	13.774 \| good	0.176 \| good	6.89 \| good	0.26 \| good
2025-07-26T10:00:00.000Z	38 \| good	7.079 \| good	30.815 \| good	13.465 \| good	0.191 \| good	6.026 \| good	0.298 \| good
2025-07-26T11:00:00.000Z	38 \| good	7.132 \| good	30.824 \| good	11.571 \| good	0.219 \| good	5.809 \| good	0.278 \| good
2025-07-26T12:00:00.000Z	33 \| good	6.133 \| good	27.357 \| good	15.022 \| good	0.163 \| good	4.526 \| good	0.278 \| good
2025-07-26T13:00:00.000Z	44 \| good	7.579 \| good	32.839 \| good	18.738 \| good	0.231 \| good	3.299 \| good	0.239 \| good
2025-07-26T14:00:00.000Z	49 \| good	8.763 \| good	37.065 \| good	25.352 \| good	0.513 \| good	2.81 \| good	0.22 \| good
2025-07-26T15:00:00.000Z	44 \| good	7.921 \| good	33.34 \| good	31.521 \| good	0.32 \| good	2.038 \| good	0.221 \| good
2025-07-26T16:00:00.000Z	38 \| good	6.525 \| good	28.192 \| good	35.911 \| good	0.3 \| good	1.85 \| good	0.221 \| good
2025-07-26T17:00:00.000Z	37 \| good	5.49 \| good	23.598 \| good	40.234 \| good	0.217 \| good	2.076 \| good	0.201 \| good
2025-07-26T18:00:00.000Z	44 \| good	4.418 \| good	18.575 \| good	46.711 \| good	0.262 \| good	1.457 \| good	0.201 \| good
2025-07-26T19:00:00.000Z	45 \| good	3.892 \| good	17.026 \| good	48.611 \| good	0.146 \| good	2.597 \| good	0.201 \| good
2025-07-26T20:00:00.000Z	44 \| good	4.934 \| good	21.744 \| good	46.881 \| good	0.158 \| good	2.046 \| good	0.241 \| good
2025-07-26T21:00:00.000Z	45 \| good	6.342 \| good	27.006 \| good	48.541 \| good	0.194 \| good	2.098 \| good	0.241 \| good
2025-07-26T22:00:00.000Z	44 \| good	7.865 \| good	34.078 \| good	47.225 \| good	0.211 \| good	1.843 \| good	0.241 \| good
2025-07-26T23:00:00.000Z	49 \| good	8.641 \| good	41.026 \| good	43.793 \| good	0.148 \| good	2.539 \| good	0.241 \| good
2025-07-27T00:00:00.000Z	49 \| good	8.639 \| good	40.705 \| good	44.619 \| good	0.166 \| good	3.082 \| good	0.281 \| good
2025-07-27T01:00:00.000Z	49 \| good	9.236 \| good	41.444 \| good	43.671 \| good	0.215 \| good	2.703 \| good	0.319 \| good
2025-07-27T02:00:00.000Z	49 \| good	8.957 \| good	40.327 \| good	40.598 \| good	0.181 \| good	3.601 \| good	0.279 \| good
2025-07-27T03:00:00.000Z	44 \| good	7.511 \| good	33.533 \| good	37.482 \| good	0.201 \| good	4.784 \| good	0.279 \| good
2025-07-27T04:00:00.000Z	44 \| good	7.511 \| good	33.533 \| good	37.482 \| good	0.201 \| good	4.784 \| good	0.279 \| good
2025-07-22T23:00:00.000Z	39 \| good	4.574 \| good	19.873 \| good	41.945 \| good	1.451 \| good	2.244 \| good	0.204 \| good
2025-07-23T00:00:00.000Z	31 \| good	4.673 \| good	20.375 \| good	32.522 \| good	1.437 \| good	2.953 \| good	0.212 \| good
2025-07-23T01:00:00.000Z	27 \| good	4.585 \| good	19.86 \| good	27.702 \| good	1.468 \| good	4.269 \| good	0.228 \| good
2025-07-23T02:00:00.000Z	27 \| good	5.262 \| good	22.592 \| good	20.899 \| good	1.498 \| good	5.585 \| good	0.245 \| good
2025-07-23T03:00:00.000Z	33 \| good	5.864 \| good	25.565 \| good	15.11 \| good	1.529 \| good	6.901 \| good	0.262 \| good
2025-07-23T04:00:00.000Z	33 \| good	6.308 \| good	28.349 \| good	15.819 \| good	1.564 \| good	6.952 \| good	0.263 \| good
2025-07-23T05:00:00.000Z	49 \| good	8.947 \| good	39.307 \| good	19.532 \| good	1.599 \| good	7.003 \| good	0.263 \| good
2025-07-23T06:00:00.000Z	38 \| good	7.259 \| good	31.777 \| good	18.911 \| good	1.634 \| good	7.054 \| good	0.264 \| good
2025-07-23T07:00:00.000Z	52 \| moderate	9.607 \| good	42.51 \| good	16.588 \| good	1.604 \| good	6.657 \| good	0.258 \| good
2025-07-23T08:00:00.000Z	52 \| moderate	10.178 \| good	45.155 \| good	17.909 \| good	1.573 \| good	6.261 \| good	0.251 \| good
2025-07-23T09:00:00.000Z	58 \| moderate	12.51 \| fine	55.647 \| fine	19.797 \| good	1.543 \| good	5.865 \| good	0.245 \| good
2025-07-23T10:00:00.000Z	60 \| moderate	13.665 \| fine	60.76 \| fine	17.354 \| good	1.566 \| good	5.34 \| good	0.24 \| good
2025-07-23T11:00:00.000Z	64 \| moderate	16.179 \| fine	72.288 \| fine	17.153 \| good	1.59 \| good	4.814 \| good	0.236 \| good
2025-07-23T12:00:00.000Z	58 \| moderate	13.202 \| fine	59.282 \| fine	23.66 \| good	1.614 \| good	4.289 \| good	0.232 \| good
2025-07-23T13:00:00.000Z	52 \| moderate	9.731 \| good	43.263 \| good	27.17 \| good	1.522 \| good	3.229 \| good	0.222 \| good
2025-07-23T14:00:00.000Z	58 \| moderate	12.501 \| fine	55.962 \| fine	37.34 \| good	1.431 \| good	2.169 \| good	0.212 \| good
2025-07-23T15:00:00.000Z	56 \| moderate	12.155 \| fine	54.615 \| good	46.543 \| good	1.34 \| good	1.109 \| good	0.203 \| good
2025-07-23T16:00:00.000Z	58 \| moderate	13.131 \| fine	59.116 \| fine	52.366 \| good	1.263 \| good	1.007 \| good	0.204 \| good
2025-07-23T17:00:00.000Z	58 \| moderate	12.569 \| fine	56.772 \| fine	54.479 \| good	1.186 \| good	0.904 \| good	0.205 \| good
2025-07-23T18:00:00.000Z	52 \| moderate	10.5 \| good	46.532 \| good	53.079 \| good	1.108 \| good	0.801 \| good	0.206 \| good
2025-07-23T19:00:00.000Z	52 \| moderate	10.104 \| good	44.843 \| good	50.48 \| good	1.092 \| good	0.854 \| good	0.206 \| good
2025-07-23T20:00:00.000Z	56 \| moderate	12.054 \| good	53.89 \| good	51.013 \| good	1.075 \| good	0.907 \| good	0.207 \| good
2025-07-23T21:00:00.000Z	58 \| moderate	13.264 \| fine	60.127 \| fine	47.691 \| good	1.059 \| good	0.959 \| good	0.208 \| good
2025-07-23T22:00:00.000Z	58 \| moderate	13.2 \| fine	59.255 \| fine	48.144 \| good	1.17 \| good	1.491 \| good	0.213 \| good
2025-07-23T23:00:00.000Z	54 \| moderate	10.938 \| good	48.349 \| good	46.324 \| good	1.28 \| good	2.024 \| good	0.218 \| good
2025-07-24T00:00:00.000Z	56 \| moderate	12.037 \| good	53.967 \| good	36.534 \| good	1.391 \| good	2.556 \| good	0.223 \| good
2025-07-24T01:00:00.000Z	56 \| moderate	12.385 \| fine	55.205 \| fine	33.983 \| good	1.616 \| good	3.211 \| good	0.227 \| good
2025-07-24T02:00:00.000Z	56 \| moderate	11.528 \| good	51.273 \| good	28.39 \| good	1.841 \| good	3.866 \| good	0.23 \| good
2025-07-24T03:00:00.000Z	49 \| good	9.167 \| good	41.22 \| good	23.453 \| good	2.066 \| good	4.521 \| good	0.234 \| good
2025-07-24T04:00:00.000Z	38 \| good	7.229 \| good	31.843 \| good	21.331 \| good	1.905 \| good	4.297 \| good	0.227 \| good
2025-07-24T05:00:00.000Z	38 \| good	6.914 \| good	30.667 \| good	22.492 \| good	1.744 \| good	4.074 \| good	0.219 \| good
2025-07-24T06:00:00.000Z	27 \| good	4.952 \| good	21.428 \| good	18.382 \| good	1.582 \| good	3.851 \| good	0.211 \| good
2025-07-24T07:00:00.000Z	44 \| good	7.523 \| good	32.88 \| good	17.285 \| good	1.432 \| good	3.587 \| good	0.208 \| good
2025-07-24T08:00:00.000Z	38 \| good	7.166 \| good	31.407 \| good	19.533 \| good	1.281 \| good	3.323 \| good	0.205 \| good
2025-07-24T09:00:00.000Z	33 \| good	5.801 \| good	25.393 \| good	16.952 \| good	1.13 \| good	3.06 \| good	0.202 \| good
2025-07-24T10:00:00.000Z	44 \| good	8.31 \| good	36.432 \| good	16.741 \| good	1.152 \| good	2.828 \| good	0.204 \| good
2025-07-24T11:00:00.000Z	52 \| moderate	9.554 \| good	42.407 \| good	17.021 \| good	1.173 \| good	2.596 \| good	0.206 \| good
2025-07-24T12:00:00.000Z	54 \| moderate	10.66 \| good	47.255 \| good	21.56 \| good	1.195 \| good	2.365 \| good	0.208 \| good
2025-07-24T13:00:00.000Z	52 \| moderate	10.282 \| good	45.481 \| good	25.518 \| good	1.16 \| good	1.885 \| good	0.203 \| good
2025-07-24T14:00:00.000Z	49 \| good	8.617 \| good	37.889 \| good	31.598 \| good	1.124 \| good	1.406 \| good	0.198 \| good
2025-07-24T15:00:00.000Z	44 \| good	8.253 \| good	36.255 \| good	39.211 \| good	1.088 \| good	0.927 \| good	0.194 \| good
2025-07-24T16:00:00.000Z	44 \| good	8.473 \| good	36.935 \| good	41.594 \| good	0.989 \| good	0.834 \| good	0.192 \| good
2025-07-24T17:00:00.000Z	38 \| good	4.992 \| good	21.676 \| good	41.315 \| good	0.89 \| good	0.741 \| good	0.191 \| good
2025-07-24T18:00:00.000Z	38 \| good	5.497 \| good	23.743 \| good	41.153 \| good	0.791 \| good	0.648 \| good	0.189 \| good
2025-07-24T19:00:00.000Z	37 \| good	5.11 \| good	22.246 \| good	40.336 \| good	0.74 \| good	0.708 \| good	0.19 \| good
2025-07-24T20:00:00.000Z	34 \| good	5.428 \| good	23.533 \| good	37.28 \| good	0.688 \| good	0.768 \| good	0.191 \| good
2025-07-24T21:00:00.000Z	33 \| good	5.88 \| good	25.664 \| good	35.928 \| good	0.637 \| good	0.828 \| good	0.192 \| good
2025-07-24T22:00:00.000Z	31 \| good	4.809 \| good	20.859 \| good	33.966 \| good	0.609 \| good	1.248 \| good	0.194 \| good

Real-time air quality index in Halfway, Maryland today

Common air pollutants in Halfway, Maryland

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Halfway, Maryland air quality forecast and history

Empower business decisions with accurate air quality data

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

Air quality in nearby cities

Hagerstown, Maryland

Waynesboro, Pennsylvania

Martinsburg, West Virginia

Guilford, Pennsylvania

Chambersburg, Pennsylvania

Frederick, 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 Halfway, Maryland updated?

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

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

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

Which pollutant is found most often in Halfway, Maryland?

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

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

What are the current PM10 levels at Halfway, Maryland?

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

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

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

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

What are the current PM₁₀ levels at Halfway, Maryland?

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

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

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