What are the current PM10 levels at Acton, Massachusetts?

The current PM10 levels in Acton, Massachusetts are 46.219 μg/m3.

What are the current sulfur dioxide (SO2) levels at Acton, Massachusetts?

The current sulfur dioxide (SO2) levels in Acton, Massachusetts are 0.815 ppb.

What are the current ozone (O3) levels at Acton, Massachusetts?

The current ozone (O3) levels at Acton, Massachusetts is 21.63 ppm.

What are the current nitrogen dioxide (NO2) levels at Acton, Massachusetts?

The current nitrogen dioxide (NO2) levels at Acton, Massachusetts is 5.406 ppb.

Live air quality index in Acton, Massachusetts today

Name: Live air pollution levels in Acton, Massachusetts today
Creator: Ambee

Stay updated with real-time air quality in Acton, Massachusetts 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

Acton, Massachusetts

Last updated: ... (Local time)

Major air pollutants in Acton, Massachusetts

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

15.64 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

46.22 μg/m³

155

255

425

605+

Ozone (O₃)

21.63 ppb

201

201+

Sulfur Dioxide (SO₂)

0.81 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

5.41 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.22 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Acton, Massachusetts

Get Live Pollen Counts

Acton, Massachusetts

Scroll To Air Quality Map

Track live Acton, Massachusetts air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-05T11:00:00.000Z	49 \| good	9.126 \| good	28.83 \| good	39.462 \| good	0.625 \| good	21.059 \| good	0.241 \| good
2025-06-05T12:00:00.000Z	49 \| good	9.186 \| good	31.263 \| good	36.359 \| good	0.671 \| good	21.126 \| good	0.282 \| good
2025-06-05T13:00:00.000Z	52 \| moderate	9.842 \| good	40.954 \| good	42.387 \| good	0.57 \| good	15.832 \| good	0.322 \| good
2025-06-05T14:00:00.000Z	56 \| moderate	12.271 \| fine	39.423 \| good	43.366 \| good	0.721 \| good	11.348 \| good	0.343 \| good
2025-06-05T15:00:00.000Z	58 \| moderate	13.332 \| fine	42.446 \| good	48.212 \| good	0.653 \| good	6.953 \| good	0.282 \| good
2025-06-05T16:00:00.000Z	64 \| moderate	15.823 \| fine	49.276 \| good	48.46 \| good	0.727 \| good	7.661 \| good	0.261 \| good
2025-06-05T17:00:00.000Z	66 \| moderate	17.497 \| fine	66.563 \| fine	55.337 \| fine	0.918 \| good	10.798 \| good	0.282 \| good
2025-06-05T18:00:00.000Z	67 \| moderate	18.268 \| fine	70.32 \| fine	57.879 \| fine	0.762 \| good	8.711 \| good	0.282 \| good
2025-06-05T19:00:00.000Z	74 \| moderate	18.451 \| fine	51.079 \| good	62.403 \| fine	0.806 \| good	5.808 \| good	0.237 \| good
2025-06-05T20:00:00.000Z	77 \| moderate	18.358 \| fine	43.77 \| good	62.675 \| fine	0.483 \| good	7.734 \| good	0.257 \| good
2025-06-05T21:00:00.000Z	77 \| moderate	18.428 \| fine	32.798 \| good	62.66 \| fine	0.681 \| good	7.919 \| good	0.257 \| good
2025-06-05T22:00:00.000Z	74 \| moderate	18.762 \| fine	59.524 \| fine	62.366 \| fine	0.637 \| good	8.862 \| good	0.278 \| good
2025-06-05T23:00:00.000Z	67 \| moderate	18.482 \| fine	73.132 \| fine	59.173 \| fine	0.636 \| good	6.021 \| good	0.278 \| good
2025-06-06T00:00:00.000Z	69 \| moderate	18.599 \| fine	62.397 \| fine	60.277 \| fine	0.664 \| good	5.995 \| good	0.302 \| good
2025-06-06T01:00:00.000Z	71 \| moderate	19.644 \| fine	82.549 \| fine	52.243 \| good	0.634 \| good	8.879 \| good	0.302 \| good
2025-06-06T02:00:00.000Z	67 \| moderate	18.28 \| fine	57.686 \| fine	58.325 \| fine	0.536 \| good	7.324 \| good	0.302 \| good
2025-06-06T03:00:00.000Z	67 \| moderate	18.495 \| fine	46.88 \| good	47.919 \| good	0.571 \| good	17.664 \| good	0.323 \| good
2025-06-06T04:00:00.000Z	74 \| moderate	18.46 \| fine	101.747 \| fine	47.344 \| good	0.684 \| good	10.889 \| good	0.331 \| good
2025-06-06T05:00:00.000Z	69 \| moderate	18.668 \| fine	85.395 \| fine	40.241 \| good	0.725 \| good	11.853 \| good	0.265 \| good
2025-06-06T06:00:00.000Z	62 \| moderate	14.813 \| fine	40.772 \| good	38.249 \| good	0.744 \| good	15.908 \| good	0.192 \| good
2025-06-06T07:00:00.000Z	66 \| moderate	16.655 \| fine	45.846 \| good	47.544 \| good	0.693 \| good	14.198 \| good	0.244 \| good
2025-06-06T08:00:00.000Z	69 \| moderate	19.439 \| fine	60.463 \| fine	37.633 \| good	0.652 \| good	15.083 \| good	0.219 \| good
2025-06-06T09:00:00.000Z	66 \| moderate	17.016 \| fine	55.525 \| fine	37.831 \| good	0.744 \| good	5.647 \| good	0.237 \| good
2025-06-06T10:00:00.000Z	66 \| moderate	16.779 \| fine	53.375 \| good	39.079 \| good	0.834 \| good	3.766 \| good	0.222 \| good
2025-06-06T11:00:00.000Z	67 \| moderate	18.089 \| fine	45.804 \| good	39.774 \| good	0.799 \| good	5.85 \| good	0.202 \| good
2025-06-06T12:00:00.000Z	64 \| moderate	16.192 \| fine	44.938 \| good	42.509 \| good	0.795 \| good	6.81 \| good	0.223 \| good
2025-06-06T13:00:00.000Z	62 \| moderate	14.625 \| fine	57.826 \| fine	40.372 \| good	0.801 \| good	8.389 \| good	0.229 \| good
2025-06-06T14:00:00.000Z	60 \| moderate	13.548 \| fine	51.349 \| good	40.498 \| good	0.749 \| good	13.936 \| good	0.202 \| good
2025-06-06T15:00:00.000Z	58 \| moderate	13.46 \| fine	46.225 \| good	45.76 \| good	0.64 \| good	6.626 \| good	0.202 \| good
2025-06-06T16:00:00.000Z	56 \| moderate	12.184 \| fine	39.327 \| good	48.163 \| good	0.614 \| good	10.249 \| good	0.202 \| good
2025-06-06T17:00:00.000Z	58 \| moderate	12.59 \| fine	51.296 \| good	44.193 \| good	0.43 \| good	5.48 \| good	0.182 \| good
2025-06-06T18:00:00.000Z	54 \| moderate	11.057 \| good	40.514 \| good	48.442 \| good	0.6 \| good	4.763 \| good	0.202 \| good
2025-06-06T19:00:00.000Z	67 \| moderate	15.641 \| fine	52.891 \| good	59.749 \| fine	0.556 \| good	8.659 \| good	0.258 \| good
2025-06-06T20:00:00.000Z	64 \| moderate	16.433 \| fine	60.131 \| fine	47.568 \| good	0.711 \| good	7.893 \| good	0.217 \| good
2025-06-06T21:00:00.000Z	64 \| moderate	15.744 \| fine	57.538 \| fine	38.007 \| good	0.917 \| good	5.133 \| good	0.261 \| good
2025-06-06T22:00:00.000Z	60 \| moderate	14.414 \| fine	53.19 \| good	43.272 \| good	0.712 \| good	10.018 \| good	0.237 \| good
2025-06-06T23:00:00.000Z	62 \| moderate	15.444 \| fine	60.457 \| fine	42.696 \| good	0.856 \| good	8.272 \| good	0.217 \| good
2025-06-07T00:00:00.000Z	60 \| moderate	13.58 \| fine	46.17 \| good	41.527 \| good	0.852 \| good	6.688 \| good	0.237 \| good
2025-06-07T01:00:00.000Z	62 \| moderate	15.106 \| fine	59.022 \| fine	35.289 \| good	0.654 \| good	5.844 \| good	0.275 \| good
2025-06-07T02:00:00.000Z	54 \| moderate	11.427 \| good	39.915 \| good	38.179 \| good	0.73 \| good	5.483 \| good	0.283 \| good
2025-06-07T03:00:00.000Z	62 \| moderate	14.649 \| fine	64.994 \| fine	33.371 \| good	0.842 \| good	8.117 \| good	0.238 \| good
2025-06-07T04:00:00.000Z	64 \| moderate	15.616 \| fine	70.683 \| fine	26.931 \| good	0.865 \| good	6.579 \| good	0.22 \| good
2025-06-07T05:00:00.000Z	66 \| moderate	16.852 \| fine	79.767 \| fine	36.592 \| good	1.023 \| good	5.262 \| good	0.136 \| good
2025-06-07T06:00:00.000Z	38 \| good	6.991 \| good	26.302 \| good	35.531 \| good	1.007 \| good	6.825 \| good	0.136 \| good
2025-06-07T07:00:00.000Z	33 \| good	6.117 \| good	27.259 \| good	25.365 \| good	0.734 \| good	5.006 \| good	0.202 \| good
2025-06-07T08:00:00.000Z	66 \| moderate	16.845 \| fine	74.251 \| fine	26.372 \| good	0.78 \| good	5.234 \| good	0.202 \| good
2025-06-07T09:00:00.000Z	64 \| moderate	15.643 \| fine	46.219 \| good	21.63 \| good	0.815 \| good	5.406 \| good	0.223 \| good
2025-06-07T10:00:00.000Z	62 \| moderate	14.533 \| fine	53.848 \| good	25.995 \| good	0.799 \| good	7.617 \| good	0.182 \| good
2025-06-07T10:00:00.000Z	64 \| moderate	15.643 \| fine	46.219 \| good	21.63 \| good	0.815 \| good	5.406 \| good	0.223 \| good
2025-06-07T11:00:00.000Z	33 \| good	6.053 \| good	27.163 \| good	25.241 \| good	0.2 \| good	3.398 \| good	0.162 \| good
2025-06-07T12:00:00.000Z	33 \| good	6.312 \| good	28.149 \| good	30.387 \| good	0.242 \| good	3.762 \| good	0.163 \| good
2025-06-07T13:00:00.000Z	33 \| good	6.018 \| good	27.129 \| good	33.305 \| good	0.262 \| good	2.481 \| good	0.151 \| good
2025-06-07T14:00:00.000Z	49 \| good	9.201 \| good	41.139 \| good	37.333 \| good	0.315 \| good	2.877 \| good	0.153 \| good
2025-06-07T15:00:00.000Z	54 \| moderate	11.414 \| good	50.142 \| good	42.073 \| good	0.368 \| good	3.272 \| good	0.155 \| good
2025-06-07T16:00:00.000Z	58 \| moderate	12.647 \| fine	57 \| fine	41.838 \| good	0.426 \| good	2.109 \| good	0.153 \| good
2025-06-07T17:00:00.000Z	62 \| moderate	14.813 \| fine	66.673 \| fine	37.958 \| good	0.511 \| good	2.546 \| good	0.155 \| good
2025-06-07T18:00:00.000Z	64 \| moderate	15.776 \| fine	70.758 \| fine	39.964 \| good	0.597 \| good	2.982 \| good	0.157 \| good
2025-06-07T19:00:00.000Z	62 \| moderate	14.962 \| fine	66.817 \| fine	45.593 \| good	0.407 \| good	2.362 \| good	0.179 \| good
2025-06-07T20:00:00.000Z	60 \| moderate	14.36 \| fine	64.716 \| fine	47.652 \| good	0.519 \| good	2.83 \| good	0.178 \| good
2025-06-07T21:00:00.000Z	62 \| moderate	15.227 \| fine	68.528 \| fine	47.518 \| good	0.63 \| good	3.298 \| good	0.177 \| good
2025-06-07T22:00:00.000Z	58 \| moderate	13.361 \| fine	60.879 \| fine	43.87 \| good	0.322 \| good	5.903 \| good	0.235 \| good
2025-06-07T23:00:00.000Z	56 \| moderate	12.09 \| good	54.389 \| good	37.687 \| good	0.43 \| good	7.445 \| good	0.239 \| good
2025-06-08T00:00:00.000Z	38 \| good	7.22 \| good	31.829 \| good	35.649 \| good	0.539 \| good	8.988 \| good	0.243 \| good
2025-06-08T01:00:00.000Z	44 \| good	8.145 \| good	35.612 \| good	31.54 \| good	0.36 \| good	5.873 \| good	0.245 \| good
2025-06-08T02:00:00.000Z	52 \| moderate	9.594 \| good	43.15 \| good	29.278 \| good	0.457 \| good	7.616 \| good	0.25 \| good
2025-06-08T03:00:00.000Z	52 \| moderate	9.652 \| good	43.215 \| good	28.509 \| good	0.553 \| good	9.359 \| good	0.254 \| good
2025-06-08T04:00:00.000Z	52 \| moderate	9.981 \| good	44.357 \| good	28.862 \| good	0.431 \| good	4.704 \| good	0.235 \| good
2025-06-08T05:00:00.000Z	52 \| moderate	10.412 \| good	46.242 \| good	26.365 \| good	0.513 \| good	5.841 \| good	0.232 \| good
2025-06-08T06:00:00.000Z	49 \| good	8.63 \| good	37.65 \| good	24.818 \| good	0.594 \| good	6.978 \| good	0.23 \| good
2025-06-08T07:00:00.000Z	38 \| good	6.955 \| good	30.565 \| good	23.506 \| good	0.455 \| good	3.326 \| good	0.243 \| good
2025-06-08T08:00:00.000Z	49 \| good	8.954 \| good	39.264 \| good	22.745 \| good	0.522 \| good	4.072 \| good	0.234 \| good
2025-06-08T09:00:00.000Z	56 \| moderate	12.14 \| fine	54.929 \| good	18.456 \| good	0.588 \| good	4.817 \| good	0.226 \| good
2025-06-08T10:00:00.000Z	58 \| moderate	12.915 \| fine	57.396 \| fine	18.242 \| good	0.511 \| good	2.82 \| good	0.263 \| good
2025-06-08T11:00:00.000Z	62 \| moderate	14.5 \| fine	65.083 \| fine	20.839 \| good	0.584 \| good	3.327 \| good	0.255 \| good
2025-06-08T12:00:00.000Z	64 \| moderate	16.091 \| fine	71.138 \| fine	25.233 \| good	0.656 \| good	3.835 \| good	0.247 \| good
2025-06-08T13:00:00.000Z	62 \| moderate	15.467 \| fine	68.873 \| fine	30.306 \| good	0.494 \| good	1.865 \| good	0.263 \| good
2025-06-08T14:00:00.000Z	58 \| moderate	13.317 \| fine	60.876 \| fine	34.848 \| good	0.513 \| good	2.087 \| good	0.263 \| good
2025-06-08T15:00:00.000Z	58 \| moderate	13.492 \| fine	60.921 \| fine	37.803 \| good	0.532 \| good	2.309 \| good	0.263 \| good
2025-06-08T16:00:00.000Z	60 \| moderate	13.965 \| fine	62.597 \| fine	40.956 \| good	0.265 \| good	1.139 \| good	0.272 \| good
2025-06-08T17:00:00.000Z	56 \| moderate	11.869 \| good	53.568 \| good	44.772 \| good	0.273 \| good	1.258 \| good	0.271 \| good
2025-06-08T18:00:00.000Z	56 \| moderate	11.774 \| good	51.572 \| good	43.975 \| good	0.28 \| good	1.378 \| good	0.271 \| good
2025-06-08T19:00:00.000Z	60 \| moderate	13.678 \| fine	60.717 \| fine	42.178 \| good	0.281 \| good	1.713 \| good	0.266 \| good
2025-06-08T20:00:00.000Z	62 \| moderate	14.91 \| fine	66.789 \| fine	40.667 \| good	0.3 \| good	1.877 \| good	0.264 \| good
2025-06-08T21:00:00.000Z	62 \| moderate	15.452 \| fine	69.07 \| fine	37.063 \| good	0.319 \| good	2.041 \| good	0.262 \| good
2025-06-08T22:00:00.000Z	64 \| moderate	15.716 \| fine	69.26 \| fine	33.113 \| good	0.52 \| good	4.899 \| good	0.28 \| good
2025-06-08T23:00:00.000Z	60 \| moderate	13.84 \| fine	61.532 \| fine	29.332 \| good	0.554 \| good	5.412 \| good	0.28 \| good
2025-06-09T00:00:00.000Z	54 \| moderate	11.283 \| good	49.678 \| good	27.284 \| good	0.588 \| good	5.924 \| good	0.279 \| good
2025-06-09T01:00:00.000Z	56 \| moderate	11.849 \| good	52.526 \| good	26.084 \| good	0.803 \| good	7.695 \| good	0.295 \| good
2025-06-09T02:00:00.000Z	54 \| moderate	11.383 \| good	50.311 \| good	27.865 \| good	0.852 \| good	8.615 \| good	0.299 \| good
2025-06-09T03:00:00.000Z	49 \| good	9.41 \| good	42.188 \| good	31.168 \| good	0.9 \| good	9.535 \| good	0.304 \| good
2025-06-09T04:00:00.000Z	44 \| good	8.217 \| good	36.115 \| good	34.54 \| good	0.823 \| good	6.545 \| good	0.289 \| good
2025-06-09T05:00:00.000Z	44 \| good	8.42 \| good	37.174 \| good	33.526 \| good	0.86 \| good	7.023 \| good	0.291 \| good
2025-06-09T06:00:00.000Z	62 \| moderate	14.784 \| fine	15.389 \| good	32.764 \| good	0.901 \| good	7.521 \| good	0.293 \| good
2025-06-09T07:00:00.000Z	44 \| good	8.421 \| good	37.211 \| good	31.01 \| good	0.756 \| good	4.459 \| good	0.274 \| good
2025-06-09T08:00:00.000Z	49 \| good	8.862 \| good	39.188 \| good	30.147 \| good	0.782 \| good	4.747 \| good	0.275 \| good
2025-06-09T09:00:00.000Z	44 \| good	8.18 \| good	35.975 \| good	27.282 \| good	0.809 \| good	5.034 \| good	0.276 \| good
2025-06-09T10:00:00.000Z	38 \| good	6.915 \| good	30.248 \| good	26.165 \| good	0.681 \| good	2.523 \| good	0.269 \| good

Acton

Empower business decisions with accurate air quality data

Acton, Massachusetts air quality map: Real-time AQI near you

0.25ppm

How accurate is Massachusetts, USA air quality data?

Air quality measurements for Massachusetts, 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 Acton, Massachusetts updated?

Air quality data for Acton, Massachusetts is updated on an hourly basis.

When did Acton, Massachusetts experience the worst air quality in the last 24 hours?

The worst air quality in Acton, Massachusetts was recorded at 07:00:00 on 2025-06-06.

When did Acton, Massachusetts have its best air quality in the last 24 hours?

The best air quality in Acton, Massachusetts was recorded at 07:00:00 on 2025-06-07.

What is the real-time air quality index for Acton, Massachusetts?

The real-time air quality index in Acton, Massachusetts is 64, currently categorized as Moderate.

Which pollutant is found most often in Acton, Massachusetts?

The most common pollutant in Acton, Massachusetts is PM2.5.

What can I do if the air quality in Acton, Massachusetts is poor?

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

What are the current PM_2.5 levels in Acton, Massachusetts?

The measured PM_2.5 levels in Acton, Massachusetts at present are 15.643 μg/m³.

What are the current PM₁₀ levels at Acton, Massachusetts?

The current PM₁₀ levels in Acton, Massachusetts are 46.219 μg/m³.

What are the current carbon monoxide (CO) levels at Acton, Massachusetts?

The current carbon monoxide (CO) level in Acton, Massachusetts is 0.223 ppm.

What are the current sulfur dioxide (SO₂) levels at Acton, Massachusetts?

The current sulfur dioxide (SO₂) levels in Acton, Massachusetts are 0.815 ppb.

What are the current ozone (O₃) levels at Acton, Massachusetts?

The current ozone (O₃) levels at Acton, Massachusetts is 21.63 ppm.

What are the current nitrogen dioxide (NO₂) levels at Acton, Massachusetts?

The current nitrogen dioxide (NO₂) levels at Acton, Massachusetts is 5.406 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-05T11:00:00.000Z	49 \| good	9.126 \| good	28.83 \| good	39.462 \| good	0.625 \| good	21.059 \| good	0.241 \| good
2025-06-05T12:00:00.000Z	49 \| good	9.186 \| good	31.263 \| good	36.359 \| good	0.671 \| good	21.126 \| good	0.282 \| good
2025-06-05T13:00:00.000Z	52 \| moderate	9.842 \| good	40.954 \| good	42.387 \| good	0.57 \| good	15.832 \| good	0.322 \| good
2025-06-05T14:00:00.000Z	56 \| moderate	12.271 \| fine	39.423 \| good	43.366 \| good	0.721 \| good	11.348 \| good	0.343 \| good
2025-06-05T15:00:00.000Z	58 \| moderate	13.332 \| fine	42.446 \| good	48.212 \| good	0.653 \| good	6.953 \| good	0.282 \| good
2025-06-05T16:00:00.000Z	64 \| moderate	15.823 \| fine	49.276 \| good	48.46 \| good	0.727 \| good	7.661 \| good	0.261 \| good
2025-06-05T17:00:00.000Z	66 \| moderate	17.497 \| fine	66.563 \| fine	55.337 \| fine	0.918 \| good	10.798 \| good	0.282 \| good
2025-06-05T18:00:00.000Z	67 \| moderate	18.268 \| fine	70.32 \| fine	57.879 \| fine	0.762 \| good	8.711 \| good	0.282 \| good
2025-06-05T19:00:00.000Z	74 \| moderate	18.451 \| fine	51.079 \| good	62.403 \| fine	0.806 \| good	5.808 \| good	0.237 \| good
2025-06-05T20:00:00.000Z	77 \| moderate	18.358 \| fine	43.77 \| good	62.675 \| fine	0.483 \| good	7.734 \| good	0.257 \| good
2025-06-05T21:00:00.000Z	77 \| moderate	18.428 \| fine	32.798 \| good	62.66 \| fine	0.681 \| good	7.919 \| good	0.257 \| good
2025-06-05T22:00:00.000Z	74 \| moderate	18.762 \| fine	59.524 \| fine	62.366 \| fine	0.637 \| good	8.862 \| good	0.278 \| good
2025-06-05T23:00:00.000Z	67 \| moderate	18.482 \| fine	73.132 \| fine	59.173 \| fine	0.636 \| good	6.021 \| good	0.278 \| good
2025-06-06T00:00:00.000Z	69 \| moderate	18.599 \| fine	62.397 \| fine	60.277 \| fine	0.664 \| good	5.995 \| good	0.302 \| good
2025-06-06T01:00:00.000Z	71 \| moderate	19.644 \| fine	82.549 \| fine	52.243 \| good	0.634 \| good	8.879 \| good	0.302 \| good
2025-06-06T02:00:00.000Z	67 \| moderate	18.28 \| fine	57.686 \| fine	58.325 \| fine	0.536 \| good	7.324 \| good	0.302 \| good
2025-06-06T03:00:00.000Z	67 \| moderate	18.495 \| fine	46.88 \| good	47.919 \| good	0.571 \| good	17.664 \| good	0.323 \| good
2025-06-06T04:00:00.000Z	74 \| moderate	18.46 \| fine	101.747 \| fine	47.344 \| good	0.684 \| good	10.889 \| good	0.331 \| good
2025-06-06T05:00:00.000Z	69 \| moderate	18.668 \| fine	85.395 \| fine	40.241 \| good	0.725 \| good	11.853 \| good	0.265 \| good
2025-06-06T06:00:00.000Z	62 \| moderate	14.813 \| fine	40.772 \| good	38.249 \| good	0.744 \| good	15.908 \| good	0.192 \| good
2025-06-06T07:00:00.000Z	66 \| moderate	16.655 \| fine	45.846 \| good	47.544 \| good	0.693 \| good	14.198 \| good	0.244 \| good
2025-06-06T08:00:00.000Z	69 \| moderate	19.439 \| fine	60.463 \| fine	37.633 \| good	0.652 \| good	15.083 \| good	0.219 \| good
2025-06-06T09:00:00.000Z	66 \| moderate	17.016 \| fine	55.525 \| fine	37.831 \| good	0.744 \| good	5.647 \| good	0.237 \| good
2025-06-06T10:00:00.000Z	66 \| moderate	16.779 \| fine	53.375 \| good	39.079 \| good	0.834 \| good	3.766 \| good	0.222 \| good
2025-06-06T11:00:00.000Z	67 \| moderate	18.089 \| fine	45.804 \| good	39.774 \| good	0.799 \| good	5.85 \| good	0.202 \| good
2025-06-06T12:00:00.000Z	64 \| moderate	16.192 \| fine	44.938 \| good	42.509 \| good	0.795 \| good	6.81 \| good	0.223 \| good
2025-06-06T13:00:00.000Z	62 \| moderate	14.625 \| fine	57.826 \| fine	40.372 \| good	0.801 \| good	8.389 \| good	0.229 \| good
2025-06-06T14:00:00.000Z	60 \| moderate	13.548 \| fine	51.349 \| good	40.498 \| good	0.749 \| good	13.936 \| good	0.202 \| good
2025-06-06T15:00:00.000Z	58 \| moderate	13.46 \| fine	46.225 \| good	45.76 \| good	0.64 \| good	6.626 \| good	0.202 \| good
2025-06-06T16:00:00.000Z	56 \| moderate	12.184 \| fine	39.327 \| good	48.163 \| good	0.614 \| good	10.249 \| good	0.202 \| good
2025-06-06T17:00:00.000Z	58 \| moderate	12.59 \| fine	51.296 \| good	44.193 \| good	0.43 \| good	5.48 \| good	0.182 \| good
2025-06-06T18:00:00.000Z	54 \| moderate	11.057 \| good	40.514 \| good	48.442 \| good	0.6 \| good	4.763 \| good	0.202 \| good
2025-06-06T19:00:00.000Z	67 \| moderate	15.641 \| fine	52.891 \| good	59.749 \| fine	0.556 \| good	8.659 \| good	0.258 \| good
2025-06-06T20:00:00.000Z	64 \| moderate	16.433 \| fine	60.131 \| fine	47.568 \| good	0.711 \| good	7.893 \| good	0.217 \| good
2025-06-06T21:00:00.000Z	64 \| moderate	15.744 \| fine	57.538 \| fine	38.007 \| good	0.917 \| good	5.133 \| good	0.261 \| good
2025-06-06T22:00:00.000Z	60 \| moderate	14.414 \| fine	53.19 \| good	43.272 \| good	0.712 \| good	10.018 \| good	0.237 \| good
2025-06-06T23:00:00.000Z	62 \| moderate	15.444 \| fine	60.457 \| fine	42.696 \| good	0.856 \| good	8.272 \| good	0.217 \| good
2025-06-07T00:00:00.000Z	60 \| moderate	13.58 \| fine	46.17 \| good	41.527 \| good	0.852 \| good	6.688 \| good	0.237 \| good
2025-06-07T01:00:00.000Z	62 \| moderate	15.106 \| fine	59.022 \| fine	35.289 \| good	0.654 \| good	5.844 \| good	0.275 \| good
2025-06-07T02:00:00.000Z	54 \| moderate	11.427 \| good	39.915 \| good	38.179 \| good	0.73 \| good	5.483 \| good	0.283 \| good
2025-06-07T03:00:00.000Z	62 \| moderate	14.649 \| fine	64.994 \| fine	33.371 \| good	0.842 \| good	8.117 \| good	0.238 \| good
2025-06-07T04:00:00.000Z	64 \| moderate	15.616 \| fine	70.683 \| fine	26.931 \| good	0.865 \| good	6.579 \| good	0.22 \| good
2025-06-07T05:00:00.000Z	66 \| moderate	16.852 \| fine	79.767 \| fine	36.592 \| good	1.023 \| good	5.262 \| good	0.136 \| good
2025-06-07T06:00:00.000Z	38 \| good	6.991 \| good	26.302 \| good	35.531 \| good	1.007 \| good	6.825 \| good	0.136 \| good
2025-06-07T07:00:00.000Z	33 \| good	6.117 \| good	27.259 \| good	25.365 \| good	0.734 \| good	5.006 \| good	0.202 \| good
2025-06-07T08:00:00.000Z	66 \| moderate	16.845 \| fine	74.251 \| fine	26.372 \| good	0.78 \| good	5.234 \| good	0.202 \| good
2025-06-07T09:00:00.000Z	64 \| moderate	15.643 \| fine	46.219 \| good	21.63 \| good	0.815 \| good	5.406 \| good	0.223 \| good
2025-06-07T10:00:00.000Z	62 \| moderate	14.533 \| fine	53.848 \| good	25.995 \| good	0.799 \| good	7.617 \| good	0.182 \| good
2025-06-07T10:00:00.000Z	64 \| moderate	15.643 \| fine	46.219 \| good	21.63 \| good	0.815 \| good	5.406 \| good	0.223 \| good
2025-06-07T11:00:00.000Z	33 \| good	6.053 \| good	27.163 \| good	25.241 \| good	0.2 \| good	3.398 \| good	0.162 \| good
2025-06-07T12:00:00.000Z	33 \| good	6.312 \| good	28.149 \| good	30.387 \| good	0.242 \| good	3.762 \| good	0.163 \| good
2025-06-07T13:00:00.000Z	33 \| good	6.018 \| good	27.129 \| good	33.305 \| good	0.262 \| good	2.481 \| good	0.151 \| good
2025-06-07T14:00:00.000Z	49 \| good	9.201 \| good	41.139 \| good	37.333 \| good	0.315 \| good	2.877 \| good	0.153 \| good
2025-06-07T15:00:00.000Z	54 \| moderate	11.414 \| good	50.142 \| good	42.073 \| good	0.368 \| good	3.272 \| good	0.155 \| good
2025-06-07T16:00:00.000Z	58 \| moderate	12.647 \| fine	57 \| fine	41.838 \| good	0.426 \| good	2.109 \| good	0.153 \| good
2025-06-07T17:00:00.000Z	62 \| moderate	14.813 \| fine	66.673 \| fine	37.958 \| good	0.511 \| good	2.546 \| good	0.155 \| good
2025-06-07T18:00:00.000Z	64 \| moderate	15.776 \| fine	70.758 \| fine	39.964 \| good	0.597 \| good	2.982 \| good	0.157 \| good
2025-06-07T19:00:00.000Z	62 \| moderate	14.962 \| fine	66.817 \| fine	45.593 \| good	0.407 \| good	2.362 \| good	0.179 \| good
2025-06-07T20:00:00.000Z	60 \| moderate	14.36 \| fine	64.716 \| fine	47.652 \| good	0.519 \| good	2.83 \| good	0.178 \| good
2025-06-07T21:00:00.000Z	62 \| moderate	15.227 \| fine	68.528 \| fine	47.518 \| good	0.63 \| good	3.298 \| good	0.177 \| good
2025-06-07T22:00:00.000Z	58 \| moderate	13.361 \| fine	60.879 \| fine	43.87 \| good	0.322 \| good	5.903 \| good	0.235 \| good
2025-06-07T23:00:00.000Z	56 \| moderate	12.09 \| good	54.389 \| good	37.687 \| good	0.43 \| good	7.445 \| good	0.239 \| good
2025-06-08T00:00:00.000Z	38 \| good	7.22 \| good	31.829 \| good	35.649 \| good	0.539 \| good	8.988 \| good	0.243 \| good
2025-06-08T01:00:00.000Z	44 \| good	8.145 \| good	35.612 \| good	31.54 \| good	0.36 \| good	5.873 \| good	0.245 \| good
2025-06-08T02:00:00.000Z	52 \| moderate	9.594 \| good	43.15 \| good	29.278 \| good	0.457 \| good	7.616 \| good	0.25 \| good
2025-06-08T03:00:00.000Z	52 \| moderate	9.652 \| good	43.215 \| good	28.509 \| good	0.553 \| good	9.359 \| good	0.254 \| good
2025-06-08T04:00:00.000Z	52 \| moderate	9.981 \| good	44.357 \| good	28.862 \| good	0.431 \| good	4.704 \| good	0.235 \| good
2025-06-08T05:00:00.000Z	52 \| moderate	10.412 \| good	46.242 \| good	26.365 \| good	0.513 \| good	5.841 \| good	0.232 \| good
2025-06-08T06:00:00.000Z	49 \| good	8.63 \| good	37.65 \| good	24.818 \| good	0.594 \| good	6.978 \| good	0.23 \| good
2025-06-08T07:00:00.000Z	38 \| good	6.955 \| good	30.565 \| good	23.506 \| good	0.455 \| good	3.326 \| good	0.243 \| good
2025-06-08T08:00:00.000Z	49 \| good	8.954 \| good	39.264 \| good	22.745 \| good	0.522 \| good	4.072 \| good	0.234 \| good
2025-06-08T09:00:00.000Z	56 \| moderate	12.14 \| fine	54.929 \| good	18.456 \| good	0.588 \| good	4.817 \| good	0.226 \| good
2025-06-08T10:00:00.000Z	58 \| moderate	12.915 \| fine	57.396 \| fine	18.242 \| good	0.511 \| good	2.82 \| good	0.263 \| good
2025-06-08T11:00:00.000Z	62 \| moderate	14.5 \| fine	65.083 \| fine	20.839 \| good	0.584 \| good	3.327 \| good	0.255 \| good
2025-06-08T12:00:00.000Z	64 \| moderate	16.091 \| fine	71.138 \| fine	25.233 \| good	0.656 \| good	3.835 \| good	0.247 \| good
2025-06-08T13:00:00.000Z	62 \| moderate	15.467 \| fine	68.873 \| fine	30.306 \| good	0.494 \| good	1.865 \| good	0.263 \| good
2025-06-08T14:00:00.000Z	58 \| moderate	13.317 \| fine	60.876 \| fine	34.848 \| good	0.513 \| good	2.087 \| good	0.263 \| good
2025-06-08T15:00:00.000Z	58 \| moderate	13.492 \| fine	60.921 \| fine	37.803 \| good	0.532 \| good	2.309 \| good	0.263 \| good
2025-06-08T16:00:00.000Z	60 \| moderate	13.965 \| fine	62.597 \| fine	40.956 \| good	0.265 \| good	1.139 \| good	0.272 \| good
2025-06-08T17:00:00.000Z	56 \| moderate	11.869 \| good	53.568 \| good	44.772 \| good	0.273 \| good	1.258 \| good	0.271 \| good
2025-06-08T18:00:00.000Z	56 \| moderate	11.774 \| good	51.572 \| good	43.975 \| good	0.28 \| good	1.378 \| good	0.271 \| good
2025-06-08T19:00:00.000Z	60 \| moderate	13.678 \| fine	60.717 \| fine	42.178 \| good	0.281 \| good	1.713 \| good	0.266 \| good
2025-06-08T20:00:00.000Z	62 \| moderate	14.91 \| fine	66.789 \| fine	40.667 \| good	0.3 \| good	1.877 \| good	0.264 \| good
2025-06-08T21:00:00.000Z	62 \| moderate	15.452 \| fine	69.07 \| fine	37.063 \| good	0.319 \| good	2.041 \| good	0.262 \| good
2025-06-08T22:00:00.000Z	64 \| moderate	15.716 \| fine	69.26 \| fine	33.113 \| good	0.52 \| good	4.899 \| good	0.28 \| good
2025-06-08T23:00:00.000Z	60 \| moderate	13.84 \| fine	61.532 \| fine	29.332 \| good	0.554 \| good	5.412 \| good	0.28 \| good
2025-06-09T00:00:00.000Z	54 \| moderate	11.283 \| good	49.678 \| good	27.284 \| good	0.588 \| good	5.924 \| good	0.279 \| good
2025-06-09T01:00:00.000Z	56 \| moderate	11.849 \| good	52.526 \| good	26.084 \| good	0.803 \| good	7.695 \| good	0.295 \| good
2025-06-09T02:00:00.000Z	54 \| moderate	11.383 \| good	50.311 \| good	27.865 \| good	0.852 \| good	8.615 \| good	0.299 \| good
2025-06-09T03:00:00.000Z	49 \| good	9.41 \| good	42.188 \| good	31.168 \| good	0.9 \| good	9.535 \| good	0.304 \| good
2025-06-09T04:00:00.000Z	44 \| good	8.217 \| good	36.115 \| good	34.54 \| good	0.823 \| good	6.545 \| good	0.289 \| good
2025-06-09T05:00:00.000Z	44 \| good	8.42 \| good	37.174 \| good	33.526 \| good	0.86 \| good	7.023 \| good	0.291 \| good
2025-06-09T06:00:00.000Z	62 \| moderate	14.784 \| fine	15.389 \| good	32.764 \| good	0.901 \| good	7.521 \| good	0.293 \| good
2025-06-09T07:00:00.000Z	44 \| good	8.421 \| good	37.211 \| good	31.01 \| good	0.756 \| good	4.459 \| good	0.274 \| good
2025-06-09T08:00:00.000Z	49 \| good	8.862 \| good	39.188 \| good	30.147 \| good	0.782 \| good	4.747 \| good	0.275 \| good
2025-06-09T09:00:00.000Z	44 \| good	8.18 \| good	35.975 \| good	27.282 \| good	0.809 \| good	5.034 \| good	0.276 \| good
2025-06-09T10:00:00.000Z	38 \| good	6.915 \| good	30.248 \| good	26.165 \| good	0.681 \| good	2.523 \| good	0.269 \| good

Live air quality index in Acton, Massachusetts today

Major air pollutants in Acton, Massachusetts

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Acton, Massachusetts air quality forecast and history

Empower business decisions with accurate air quality data

Acton, Massachusetts air quality map: Real-time AQI near you

Air quality in nearby cities

Maynard, Massachusetts

Concord, Massachusetts

Littleton, Massachusetts

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Sudbury, Massachusetts

Bedford, Massachusetts

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Frequently asked questions

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What is the real-time air quality index for Acton, Massachusetts?

Which pollutant is found most often in Acton, Massachusetts?

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What are the current PM2.5 levels in Acton, Massachusetts?

What are the current PM10 levels at Acton, Massachusetts?

What are the current carbon monoxide (CO) levels at Acton, Massachusetts?

What are the current sulfur dioxide (SO2) levels at Acton, Massachusetts?

What are the current ozone (O3) levels at Acton, Massachusetts?

What are the current nitrogen dioxide (NO2) levels at Acton, Massachusetts?

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 Acton, Massachusetts?

What are the current PM₁₀ levels at Acton, Massachusetts?

What are the current sulfur dioxide (SO₂) levels at Acton, Massachusetts?

What are the current ozone (O₃) levels at Acton, Massachusetts?

What are the current nitrogen dioxide (NO₂) levels at Acton, Massachusetts?