What is the current concentration of PM10 in Littleton, Massachusetts?

The current PM10 concentration at Littleton, Massachusetts is 36.177 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Littleton, Massachusetts?

The current sulfur dioxide (SO2) concentration at Littleton, Massachusetts is 0.554 ppb.

What is the current concentration of ozone (O3) in Littleton, Massachusetts?

The current ozone (O3) concentration at Littleton, Massachusetts is 35.978 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Littleton, Massachusetts?

The current nitrogen dioxide (NO2) concentration at Littleton, Massachusetts is 15.599 ppb.

Littleton, Massachusetts live air quality index now

Q: What is the current concentration of PM2.5 in Littleton, Massachusetts?

The current PM2.5 concentration at Littleton, Massachusetts is 7.014 μg/m3.

Stay updated with real-time air quality in Littleton, 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)

Good

Littleton, Massachusetts

Last updated: ... (Local time)

Major air pollutants in Littleton, Massachusetts

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

7.01 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

36.18 μg/m³

155

255

425

605+

Ozone (O₃)

35.98 ppb

201

201+

Sulfur Dioxide (SO₂)

0.55 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

15.60 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.30 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

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Littleton, Massachusetts

Scroll To Air Quality Map

Track live Littleton, Massachusetts air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-12-27T00:00:00.000Z	30 \| good	5.084 \| good	22.191 \| good	31.508 \| good	0.494 \| good	17.954 \| good	0.278 \| good
2025-12-27T01:00:00.000Z	38 \| good	6.661 \| good	30.3 \| good	25.028 \| good	0.498 \| good	18.898 \| good	0.328 \| good
2025-12-27T02:00:00.000Z	38 \| good	6.661 \| good	30.13 \| good	22.577 \| good	0.514 \| good	16.758 \| good	0.314 \| good
2025-12-27T03:00:00.000Z	38 \| good	6.652 \| good	29.565 \| good	20.037 \| good	0.455 \| good	16.606 \| good	0.314 \| good
2025-12-27T04:00:00.000Z	33 \| good	6.016 \| good	28.714 \| good	21.775 \| good	0.502 \| good	13.071 \| good	0.314 \| good
2025-12-27T05:00:00.000Z	27 \| good	5.403 \| good	19.265 \| good	23.104 \| good	0.505 \| good	8.319 \| good	0.229 \| good
2025-12-27T06:00:00.000Z	33 \| good	5.666 \| good	19.237 \| good	25.698 \| good	0.51 \| good	6.754 \| good	0.219 \| good
2025-12-27T07:00:00.000Z	33 \| good	5.566 \| good	21.722 \| good	25.436 \| good	0.511 \| good	7.281 \| good	0.219 \| good
2025-12-27T08:00:00.000Z	27 \| good	4.972 \| good	20.655 \| good	28.224 \| good	0.482 \| good	4.933 \| good	0.219 \| good
2025-12-27T09:00:00.000Z	28 \| good	4.224 \| good	17.152 \| good	29.79 \| good	0.502 \| good	4.99 \| good	0.2 \| good
2025-12-27T10:00:00.000Z	27 \| good	3.752 \| good	14.953 \| good	29.38 \| good	0.463 \| good	3.911 \| good	0.214 \| good
2025-12-27T11:00:00.000Z	27 \| good	3.199 \| good	11.415 \| good	29.496 \| good	0.464 \| good	3.886 \| good	0.2 \| good
2025-12-27T12:00:00.000Z	28 \| good	3.286 \| good	13.189 \| good	30.468 \| good	0.463 \| good	3.906 \| good	0.2 \| good
2025-12-27T13:00:00.000Z	30 \| good	2.999 \| good	12.096 \| good	32.16 \| good	0.463 \| good	3.25 \| good	0.2 \| good
2025-12-27T14:00:00.000Z	30 \| good	2.687 \| good	10.576 \| good	31.853 \| good	0.448 \| good	3.823 \| good	0.248 \| good
2025-12-27T15:00:00.000Z	31 \| good	3.172 \| good	16.483 \| good	33.212 \| good	0.462 \| good	3.787 \| good	0.248 \| good
2025-12-27T16:00:00.000Z	30 \| good	2.602 \| good	10.061 \| good	32.323 \| good	0.462 \| good	2.892 \| good	0.221 \| good
2025-12-27T17:00:00.000Z	30 \| good	2.773 \| good	16.873 \| good	32.398 \| good	0.463 \| good	2.578 \| good	0.235 \| good
2025-12-27T18:00:00.000Z	31 \| good	2.9 \| good	9.357 \| good	34.233 \| good	0.5 \| good	2.909 \| good	0.221 \| good
2025-12-27T19:00:00.000Z	31 \| good	3.14 \| good	16.626 \| good	33.355 \| good	0.499 \| good	4.033 \| good	0.221 \| good
2025-12-27T20:00:00.000Z	31 \| good	3.178 \| good	14.4 \| good	33.229 \| good	0.484 \| good	4.104 \| good	0.222 \| good
2025-12-27T21:00:00.000Z	31 \| good	3.366 \| good	13.615 \| good	32.5 \| good	0.425 \| good	5.5 \| good	0.256 \| good
2025-12-27T22:00:00.000Z	31 \| good	3.523 \| good	14.641 \| good	32.869 \| good	0.384 \| good	9.569 \| good	0.29 \| good
2025-12-27T23:00:00.000Z	29 \| good	4.583 \| good	16.653 \| good	30.523 \| good	0.402 \| good	22.86 \| good	0.306 \| good
2025-12-28T00:00:00.000Z	33 \| good	5.763 \| good	20.042 \| good	22.149 \| good	0.485 \| good	27.078 \| good	0.361 \| good
2025-12-28T01:00:00.000Z	44 \| good	7.779 \| good	31.944 \| good	18.399 \| good	0.404 \| good	26.391 \| good	0.444 \| good
2025-12-28T02:00:00.000Z	44 \| good	8.198 \| good	36.261 \| good	16.467 \| good	0.488 \| good	20.543 \| good	0.482 \| good
2025-12-28T03:00:00.000Z	49 \| good	9.029 \| good	40.227 \| good	19.689 \| good	0.52 \| good	10.826 \| good	0.211 \| good
2025-12-28T04:00:00.000Z	54 \| moderate	10.968 \| good	39.656 \| good	8.768 \| good	0.448 \| good	17.954 \| good	0.38 \| good
2025-12-28T05:00:00.000Z	52 \| moderate	10.338 \| good	45.22 \| good	9.053 \| good	0.44 \| good	20.48 \| good	0.37 \| good
2025-12-28T06:00:00.000Z	58 \| moderate	12.572 \| fine	55.746 \| fine	10.357 \| good	0.449 \| good	20.19 \| good	0.366 \| good
2025-12-28T07:00:00.000Z	56 \| moderate	12.024 \| good	47.911 \| good	8.258 \| good	0.448 \| good	20.547 \| good	0.346 \| good
2025-12-28T08:00:00.000Z	54 \| moderate	11.143 \| good	40.061 \| good	7.472 \| good	0.461 \| good	19.391 \| good	0.29 \| good
2025-12-28T09:00:00.000Z	52 \| moderate	10.461 \| good	34.623 \| good	4.532 \| good	0.519 \| good	20.122 \| good	0.347 \| good
2025-12-28T10:00:00.000Z	54 \| moderate	10.592 \| good	40.566 \| good	5.075 \| good	0.577 \| good	23.258 \| good	0.359 \| good
2025-12-28T11:00:00.000Z	54 \| moderate	11.159 \| good	38.452 \| good	5.857 \| good	0.53 \| good	24.7 \| good	0.36 \| good
2025-12-28T12:00:00.000Z	49 \| good	9.478 \| good	44.538 \| good	6.175 \| good	0.561 \| good	24.806 \| good	0.356 \| good
2025-12-28T13:00:00.000Z	52 \| moderate	9.501 \| good	36.218 \| good	8.34 \| good	0.563 \| good	24.9 \| good	0.455 \| good
2025-12-28T14:00:00.000Z	54 \| moderate	10.505 \| good	48.144 \| good	10.419 \| good	0.543 \| good	25.884 \| good	0.357 \| good
2025-12-28T15:00:00.000Z	49 \| good	8.539 \| good	37.553 \| good	10.66 \| good	0.503 \| good	16.786 \| good	0.279 \| good
2025-12-28T16:00:00.000Z	44 \| good	8.149 \| good	36.273 \| good	15.072 \| good	0.527 \| good	12.696 \| good	0.255 \| good
2025-12-28T17:00:00.000Z	38 \| good	6.914 \| good	30.672 \| good	22.358 \| good	0.506 \| good	7.674 \| good	0.234 \| good
2025-12-28T18:00:00.000Z	38 \| good	5.475 \| good	41.466 \| good	25.233 \| good	0.51 \| good	6.158 \| good	0.233 \| good
2025-12-28T19:00:00.000Z	38 \| good	6.541 \| good	38.417 \| good	29.821 \| good	0.503 \| good	8.722 \| good	0.233 \| good
2025-12-28T20:00:00.000Z	33 \| good	5.883 \| good	27.979 \| good	31.477 \| good	0.518 \| good	13.838 \| good	0.289 \| good
2025-12-28T21:00:00.000Z	38 \| good	7.439 \| good	30.888 \| good	33.154 \| good	0.545 \| good	21.727 \| good	0.274 \| good
2025-12-28T22:00:00.000Z	44 \| good	7.612 \| good	36.654 \| good	31.239 \| good	0.561 \| good	18.489 \| good	0.288 \| good
2025-12-28T23:00:00.000Z	38 \| good	7.014 \| good	36.177 \| good	35.978 \| good	0.554 \| good	15.599 \| good	0.297 \| good
2025-12-29T00:00:00.000Z	60 \| moderate	14.003 \| fine	62.791 \| fine	15.243 \| good	1.15 \| good	20.138 \| good	0.296 \| good
2025-12-29T01:00:00.000Z	60 \| moderate	13.553 \| fine	60.777 \| fine	18.021 \| good	1.386 \| good	19.795 \| good	0.286 \| good
2025-12-29T02:00:00.000Z	62 \| moderate	14.523 \| fine	65.103 \| fine	18.008 \| good	1.623 \| good	19.453 \| good	0.277 \| good
2025-12-29T03:00:00.000Z	62 \| moderate	15.146 \| fine	68.132 \| fine	17.044 \| good	1.859 \| good	19.111 \| good	0.267 \| good
2025-12-29T04:00:00.000Z	66 \| moderate	16.871 \| fine	74.987 \| fine	12.481 \| good	1.73 \| good	18.875 \| good	0.256 \| good
2025-12-29T05:00:00.000Z	69 \| moderate	18.577 \| fine	82.072 \| fine	7.228 \| good	1.6 \| good	18.64 \| good	0.246 \| good
2025-12-29T06:00:00.000Z	66 \| moderate	17.022 \| fine	75.112 \| fine	9.948 \| good	1.471 \| good	18.404 \| good	0.235 \| good
2025-12-29T07:00:00.000Z	58 \| moderate	12.585 \| fine	56.808 \| fine	16.913 \| good	1.143 \| good	14.16 \| good	0.21 \| good
2025-12-29T08:00:00.000Z	54 \| moderate	10.633 \| good	47.209 \| good	18.503 \| good	0.814 \| good	9.915 \| good	0.184 \| good
2025-12-29T09:00:00.000Z	54 \| moderate	11.154 \| good	49.513 \| good	14.404 \| good	0.486 \| good	5.67 \| good	0.159 \| good
2025-12-29T10:00:00.000Z	52 \| moderate	9.748 \| good	43.638 \| good	13.541 \| good	0.496 \| good	5.64 \| good	0.16 \| good
2025-12-29T11:00:00.000Z	44 \| good	7.537 \| good	33.235 \| good	13.779 \| good	0.506 \| good	5.61 \| good	0.162 \| good
2025-12-29T12:00:00.000Z	33 \| good	5.762 \| good	25.219 \| good	16.63 \| good	0.516 \| good	5.58 \| good	0.163 \| good
2025-12-29T13:00:00.000Z	22 \| good	4.168 \| good	18.008 \| good	18.367 \| good	0.689 \| good	6.297 \| good	0.172 \| good
2025-12-29T14:00:00.000Z	27 \| good	4.552 \| good	19.783 \| good	21.147 \| good	0.861 \| good	7.013 \| good	0.181 \| good
2025-12-29T15:00:00.000Z	27 \| good	4.589 \| good	19.848 \| good	21.987 \| good	1.034 \| good	7.729 \| good	0.19 \| good
2025-12-29T16:00:00.000Z	22 \| good	4.229 \| good	18.538 \| good	24.291 \| good	1.024 \| good	7.916 \| good	0.192 \| good
2025-12-29T17:00:00.000Z	27 \| good	5.304 \| good	22.694 \| good	23.238 \| good	1.015 \| good	8.103 \| good	0.193 \| good
2025-12-29T18:00:00.000Z	33 \| good	6.176 \| good	27.478 \| good	23.883 \| good	1.005 \| good	8.291 \| good	0.194 \| good
2025-12-29T19:00:00.000Z	44 \| good	7.511 \| good	33.141 \| good	23.021 \| good	1.079 \| good	9.571 \| good	0.201 \| good
2025-12-29T20:00:00.000Z	27 \| good	4.406 \| good	19.12 \| good	28.881 \| good	1.154 \| good	10.852 \| good	0.208 \| good
2025-12-29T21:00:00.000Z	34 \| good	2.722 \| good	10.758 \| good	36.924 \| good	1.228 \| good	12.132 \| good	0.215 \| good
2025-12-29T22:00:00.000Z	31 \| good	5.033 \| good	21.857 \| good	33.64 \| good	1.252 \| good	10.228 \| good	0.204 \| good
2025-12-29T23:00:00.000Z	33 \| good	6.499 \| good	28.62 \| good	32.539 \| good	1.277 \| good	8.324 \| good	0.193 \| good
2025-12-30T00:00:00.000Z	38 \| good	6.582 \| good	29.071 \| good	26.596 \| good	1.301 \| good	6.42 \| good	0.182 \| good
2025-12-30T01:00:00.000Z	27 \| good	5.201 \| good	22.287 \| good	25.286 \| good	1.033 \| good	5.183 \| good	0.179 \| good
2025-12-30T02:00:00.000Z	27 \| good	4.559 \| good	20.012 \| good	23.916 \| good	0.765 \| good	3.947 \| good	0.177 \| good
2025-12-30T03:00:00.000Z	22 \| good	4.35 \| good	18.925 \| good	24.097 \| good	0.498 \| good	2.71 \| good	0.174 \| good
2025-12-30T04:00:00.000Z	22 \| good	3.638 \| good	15.846 \| good	24.271 \| good	0.454 \| good	2.377 \| good	0.166 \| good
2025-12-30T05:00:00.000Z	24 \| good	3.053 \| good	12.956 \| good	26.195 \| good	0.41 \| good	2.043 \| good	0.158 \| good
2025-12-30T06:00:00.000Z	28 \| good	1.906 \| good	7.846 \| good	29.922 \| good	0.366 \| good	1.71 \| good	0.15 \| good
2025-12-30T07:00:00.000Z	29 \| good	1.18 \| good	4.815 \| good	30.858 \| good	0.349 \| good	1.536 \| good	0.146 \| good
2025-12-30T08:00:00.000Z	28 \| good	0.265 \| good	0.844 \| good	30.379 \| good	0.331 \| good	1.362 \| good	0.142 \| good
2025-12-30T09:00:00.000Z	29 \| good	0.331 \| good	1.153 \| good	31.036 \| good	0.314 \| good	1.188 \| good	0.138 \| good
2025-12-30T10:00:00.000Z	29 \| good	0.256 \| good	0.815 \| good	31.228 \| good	0.316 \| good	1.488 \| good	0.14 \| good
2025-12-30T11:00:00.000Z	29 \| good	0.372 \| good	1.116 \| good	30.547 \| good	0.319 \| good	1.788 \| good	0.143 \| good
2025-12-30T12:00:00.000Z	28 \| good	0.421 \| good	1.813 \| good	29.699 \| good	0.321 \| good	2.088 \| good	0.145 \| good
2025-12-30T13:00:00.000Z	28 \| good	0.397 \| good	1.488 \| good	30.097 \| good	0.285 \| good	1.75 \| good	0.142 \| good
2025-12-30T14:00:00.000Z	29 \| good	0.348 \| good	1 \| good	30.68 \| good	0.249 \| good	1.413 \| good	0.139 \| good
2025-12-30T15:00:00.000Z	29 \| good	0.334 \| good	1.364 \| good	30.686 \| good	0.213 \| good	1.076 \| good	0.136 \| good
2025-12-30T16:00:00.000Z	30 \| good	0.544 \| good	2 \| good	32.121 \| good	0.209 \| good	1.032 \| good	0.135 \| good
2025-12-30T17:00:00.000Z	31 \| good	0.605 \| good	2.117 \| good	33.086 \| good	0.206 \| good	0.987 \| good	0.134 \| good
2025-12-30T18:00:00.000Z	31 \| good	0.516 \| good	1.872 \| good	33.532 \| good	0.202 \| good	0.942 \| good	0.133 \| good
2025-12-30T19:00:00.000Z	31 \| good	0.305 \| good	1.116 \| good	34.483 \| good	0.21 \| good	1.196 \| good	0.134 \| good
2025-12-30T20:00:00.000Z	33 \| good	0.258 \| good	0.999 \| good	35.85 \| good	0.218 \| good	1.451 \| good	0.134 \| good
2025-12-30T21:00:00.000Z	33 \| good	0.427 \| good	1.517 \| good	36.306 \| good	0.226 \| good	1.706 \| good	0.135 \| good
2025-12-30T22:00:00.000Z	32 \| good	1.136 \| good	4.449 \| good	35.318 \| good	0.267 \| good	1.911 \| good	0.136 \| good
2025-12-30T23:00:00.000Z	32 \| good	2.256 \| good	9.024 \| good	34.554 \| good	0.308 \| good	2.116 \| good	0.137 \| good

Littleton

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Littleton, Massachusetts air quality map: Track AQI near you

0.27ppm

How accurate is Massachusetts, USA air quality data?

Air quality data and pollutant measurements for Massachusetts, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.

Source: Ambee Data Sources

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Frequently asked questions

How often is the air quality data for Littleton, Massachusetts updated?

The air quality for Littleton, Massachusetts is updated every hour.

When was the worst air quality at Littleton, Massachusetts in the last 24 hrs?

The worst air quality in Littleton, Massachusetts in the last 24 hours was observed at 06:00:00 on 2025-12-28.

When was the best air quality at Littleton, Massachusetts in the last 24 hrs?

In the last 24 hrs, the best air quality in Littleton, Massachusetts was observed at 11:00:00 on 2025-12-27.

What is the current air quality in Littleton, Massachusetts?

The current air quality in Littleton, Massachusetts is 38, categorized as Good based on real-time data.

What pollutant is the most common in Littleton, Massachusetts?

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

What should I do if the air quality in Littleton, Massachusetts is poor?

If the air quality in Littleton, Massachusetts is poor, consider staying indoors and wearing a mask to protect yourself.

What is the current concentration of PM_2.5 in Littleton, Massachusetts?

The current PM_2.5 concentration at Littleton, Massachusetts is 7.014 μg/m³.

What is the current concentration of PM₁₀ in Littleton, Massachusetts?

The current PM₁₀ concentration at Littleton, Massachusetts is 36.177 μg/m³.

What is the current concentration of carbon monoxide (CO) in Littleton, Massachusetts?

The current carbon monoxide (CO) concentration at Littleton, Massachusetts is 0.297 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Littleton, Massachusetts?

The current sulfur dioxide (SO₂) concentration at Littleton, Massachusetts is 0.554 ppb.

What is the current concentration of ozone (O₃) in Littleton, Massachusetts?

The current ozone (O₃) concentration at Littleton, Massachusetts is 35.978 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Littleton, Massachusetts?

The current nitrogen dioxide (NO₂) concentration at Littleton, Massachusetts is 15.599 ppb.

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