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

The current PM10 concentration at Littleton, Massachusetts is 25.476 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Littleton, Massachusetts is 0.57 ppb.

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

The current ozone (O3) concentration at Littleton, Massachusetts is 18.537 ppm.

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

The current nitrogen dioxide (NO2) concentration at Littleton, Massachusetts is 13.359 ppb.

Littleton, Massachusetts live air quality index now

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

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)

Moderate

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)

29.17 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

126.31 μg/m³

155

255

425

605+

Ozone (O₃)

21.82 ppb

201

201+

Sulfur Dioxide (SO₂)

0.28 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.71 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.27 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
2025-07-30T05:00:00.000Z	49 \| good	9.121 \| good	42.211 \| good	27.231 \| good	0.406 \| good	16.88 \| good	0.316 \| good
2025-07-30T06:00:00.000Z	58 \| moderate	8.694 \| good	70.167 \| fine	29.305 \| good	0.319 \| good	16.151 \| good	0.277 \| good
2025-07-30T07:00:00.000Z	44 \| good	8.016 \| good	47.286 \| good	34.243 \| good	0.371 \| good	10.395 \| good	0.301 \| good
2025-07-30T08:00:00.000Z	52 \| moderate	9.563 \| good	46.74 \| good	24.646 \| good	0.418 \| good	12.764 \| good	0.288 \| good
2025-07-30T09:00:00.000Z	57 \| moderate	8.895 \| good	68.465 \| fine	13.73 \| good	0.468 \| good	12.996 \| good	0.255 \| good
2025-07-30T10:00:00.000Z	52 \| moderate	10.148 \| good	48.105 \| good	20.186 \| good	0.371 \| good	12.123 \| good	0.255 \| good
2025-07-30T11:00:00.000Z	49 \| good	8.922 \| good	16.627 \| good	17.648 \| good	0.407 \| good	9.033 \| good	0.276 \| good
2025-07-30T12:00:00.000Z	49 \| good	9.005 \| good	25.476 \| good	18.537 \| good	0.57 \| good	13.359 \| good	0.322 \| good
2025-07-30T13:00:00.000Z	52 \| moderate	9.692 \| good	24.144 \| good	21.262 \| good	0.686 \| good	10.128 \| good	0.332 \| good
2025-07-30T14:00:00.000Z	52 \| moderate	10.158 \| good	31.355 \| good	23.946 \| good	1.021 \| good	7.944 \| good	0.293 \| good
2025-07-30T15:00:00.000Z	49 \| good	9.207 \| good	39.215 \| good	30.943 \| good	0.322 \| good	9.026 \| good	0.281 \| good
2025-07-30T16:00:00.000Z	52 \| moderate	10.285 \| good	35.888 \| good	41.362 \| good	1.312 \| good	6.698 \| good	0.276 \| good
2025-07-30T17:00:00.000Z	52 \| moderate	9.85 \| good	34.841 \| good	35.2 \| good	1.18 \| good	5.298 \| good	0.277 \| good
2025-07-30T18:00:00.000Z	49 \| good	9.407 \| good	41.955 \| good	35.73 \| good	0.53 \| good	4.292 \| good	0.256 \| good
2025-07-30T19:00:00.000Z	52 \| moderate	9.961 \| good	20.484 \| good	41.176 \| good	0.433 \| good	5.376 \| good	0.256 \| good
2025-07-30T20:00:00.000Z	49 \| good	9.121 \| good	32.264 \| good	42.603 \| good	0.361 \| good	7.015 \| good	0.256 \| good
2025-07-30T21:00:00.000Z	52 \| moderate	9.665 \| good	43.76 \| good	46.021 \| good	0.366 \| good	7.848 \| good	0.246 \| good
2025-07-30T22:00:00.000Z	49 \| good	9.047 \| good	39.276 \| good	41.509 \| good	0.363 \| good	4.181 \| good	0.285 \| good
2025-07-30T23:00:00.000Z	44 \| good	8.25 \| good	30.315 \| good	39.277 \| good	0.457 \| good	2.898 \| good	0.229 \| good
2025-07-31T00:00:00.000Z	49 \| good	8.979 \| good	41.31 \| good	36.476 \| good	0.286 \| good	4.814 \| good	0.229 \| good
2025-07-31T01:00:00.000Z	44 \| good	8.158 \| good	21.091 \| good	41.207 \| good	0.289 \| good	5.701 \| good	0.264 \| good
2025-07-31T02:00:00.000Z	49 \| good	8.967 \| good	28.352 \| good	32.051 \| good	0.273 \| good	7.809 \| good	0.246 \| good
2025-07-31T03:00:00.000Z	49 \| good	8.592 \| good	44.561 \| good	32.259 \| good	0.355 \| good	6.942 \| good	0.229 \| good
2025-07-31T04:00:00.000Z	44 \| good	8.246 \| good	33.772 \| good	28.902 \| good	0.266 \| good	7.319 \| good	0.232 \| good
2025-07-31T05:00:00.000Z	52 \| moderate	9.632 \| good	53.575 \| good	35.496 \| good	0.473 \| good	9.075 \| good	0.278 \| good
2025-07-31T06:00:00.000Z	52 \| moderate	10.091 \| good	33.896 \| good	34.095 \| good	1.002 \| good	8.025 \| good	0.323 \| good
2025-07-31T07:00:00.000Z	56 \| moderate	12.166 \| fine	65.348 \| fine	24.778 \| good	0.67 \| good	9.719 \| good	0.23 \| good
2025-07-31T08:00:00.000Z	49 \| good	9.385 \| good	37.645 \| good	23.484 \| good	0.418 \| good	11.025 \| good	0.23 \| good
2025-07-31T09:00:00.000Z	52 \| moderate	9.539 \| good	41.392 \| good	19.806 \| good	0.712 \| good	11.229 \| good	0.21 \| good
2025-07-31T10:00:00.000Z	52 \| moderate	9.655 \| good	28.257 \| good	22.131 \| good	0.921 \| good	4.712 \| good	0.21 \| good
2025-07-31T11:00:00.000Z	56 \| moderate	11.634 \| good	37.864 \| good	21.588 \| good	0.721 \| good	6.863 \| good	0.266 \| good
2025-07-31T12:00:00.000Z	58 \| moderate	13.495 \| fine	54.937 \| good	21.444 \| good	1.38 \| good	7.549 \| good	0.293 \| good
2025-07-31T13:00:00.000Z	62 \| moderate	15.336 \| fine	51.45 \| good	24.453 \| good	0.928 \| good	6.618 \| good	0.328 \| good
2025-07-31T14:00:00.000Z	62 \| moderate	14.653 \| fine	57.247 \| fine	23.152 \| good	0.282 \| good	6.217 \| good	0.348 \| good
2025-07-31T15:00:00.000Z	69 \| moderate	18.596 \| fine	50.541 \| good	25.175 \| good	0.231 \| good	6.544 \| good	0.366 \| good
2025-07-31T16:00:00.000Z	71 \| moderate	19.973 \| fine	51.718 \| good	24.811 \| good	0.273 \| good	5.753 \| good	0.366 \| good
2025-07-31T17:00:00.000Z	81 \| moderate	25.483 \| fine	31.741 \| good	25.338 \| good	0.243 \| good	6.856 \| good	0.348 \| good
2025-07-31T18:00:00.000Z	86 \| moderate	27.766 \| fine	92.275 \| fine	21.166 \| good	0.219 \| good	6.031 \| good	0.332 \| good
2025-07-31T19:00:00.000Z	94 \| moderate	31.532 \| fine	140.626 \| fine	23.819 \| good	0.241 \| good	5.017 \| good	0.349 \| good
2025-07-31T20:00:00.000Z	92 \| moderate	31.122 \| fine	101.6 \| fine	20.392 \| good	0.279 \| good	4.109 \| good	0.332 \| good
2025-07-31T21:00:00.000Z	92 \| moderate	31.438 \| fine	108.322 \| fine	21.153 \| good	0.253 \| good	3.415 \| good	0.304 \| good
2025-07-31T22:00:00.000Z	86 \| moderate	28.154 \| fine	56.782 \| fine	22.848 \| good	0.254 \| good	5.065 \| good	0.304 \| good
2025-07-31T23:00:00.000Z	56 \| moderate	11.842 \| good	52.14 \| good	18.325 \| good	0.617 \| good	5.139 \| good	0.279 \| good
2025-08-01T00:00:00.000Z	82 \| moderate	26.11 \| fine	30.148 \| good	24.399 \| good	0.269 \| good	6.993 \| good	0.304 \| good
2025-08-01T01:00:00.000Z	90 \| moderate	29.733 \| fine	82.958 \| fine	23.113 \| good	0.258 \| good	4.953 \| good	0.284 \| good
2025-08-01T02:00:00.000Z	88 \| moderate	29.396 \| fine	114.438 \| fine	22.477 \| good	0.259 \| good	4.438 \| good	0.266 \| good
2025-08-01T03:00:00.000Z	88 \| moderate	29.173 \| fine	126.312 \| fine	21.817 \| good	0.281 \| good	4.714 \| good	0.266 \| good
2025-08-01T04:00:00.000Z	88 \| moderate	29.173 \| fine	126.312 \| fine	21.817 \| good	0.281 \| good	4.714 \| good	0.266 \| good
2025-07-30T14:00:00.000Z	81 \| moderate	25.221 \| fine	109.296 \| fine	39.453 \| good	1.021 \| good	3.368 \| good	0.233 \| good
2025-07-30T15:00:00.000Z	79 \| moderate	24.021 \| fine	105.111 \| fine	45.825 \| good	1.05 \| good	2.471 \| good	0.219 \| good
2025-07-30T16:00:00.000Z	71 \| moderate	19.66 \| fine	86.794 \| fine	45.688 \| good	0.853 \| good	2.034 \| good	0.209 \| good
2025-07-30T17:00:00.000Z	64 \| moderate	15.957 \| fine	70.94 \| fine	46.049 \| good	0.656 \| good	1.597 \| good	0.2 \| good
2025-07-30T18:00:00.000Z	64 \| moderate	16.272 \| fine	72.849 \| fine	49.391 \| good	0.46 \| good	1.16 \| good	0.19 \| good
2025-07-30T19:00:00.000Z	66 \| moderate	16.568 \| fine	73.023 \| fine	49.703 \| good	0.402 \| good	1.198 \| good	0.185 \| good
2025-07-30T20:00:00.000Z	62 \| moderate	14.6 \| fine	64.977 \| fine	46.491 \| good	0.345 \| good	1.235 \| good	0.18 \| good
2025-07-30T21:00:00.000Z	56 \| moderate	12.347 \| fine	55.123 \| fine	43.135 \| good	0.288 \| good	1.273 \| good	0.175 \| good
2025-07-30T22:00:00.000Z	54 \| moderate	11.137 \| good	49.106 \| good	41.712 \| good	0.362 \| good	2.792 \| good	0.191 \| good
2025-07-30T23:00:00.000Z	52 \| moderate	9.624 \| good	43.101 \| good	38.451 \| good	0.437 \| good	4.31 \| good	0.207 \| good
2025-07-31T00:00:00.000Z	62 \| moderate	14.931 \| fine	67.022 \| fine	40.925 \| good	0.511 \| good	5.829 \| good	0.223 \| good
2025-07-31T01:00:00.000Z	66 \| moderate	16.764 \| fine	74.914 \| fine	46.967 \| good	0.548 \| good	5.928 \| good	0.227 \| good
2025-07-31T02:00:00.000Z	67 \| moderate	18.032 \| fine	79.127 \| fine	39.061 \| good	0.584 \| good	6.027 \| good	0.231 \| good
2025-07-31T03:00:00.000Z	71 \| moderate	20.266 \| fine	88.978 \| fine	31.128 \| good	0.62 \| good	6.126 \| good	0.234 \| good
2025-07-31T04:00:00.000Z	75 \| moderate	21.775 \| fine	94.934 \| fine	27.384 \| good	0.586 \| good	5.217 \| good	0.23 \| good
2025-07-31T05:00:00.000Z	73 \| moderate	20.708 \| fine	90.937 \| fine	22.276 \| good	0.553 \| good	4.308 \| good	0.226 \| good
2025-07-31T06:00:00.000Z	73 \| moderate	21.461 \| fine	94.68 \| fine	20.909 \| good	0.52 \| good	3.398 \| good	0.222 \| good
2025-07-31T07:00:00.000Z	73 \| moderate	21.336 \| fine	93.025 \| fine	23.463 \| good	0.541 \| good	3.173 \| good	0.227 \| good
2025-07-31T08:00:00.000Z	73 \| moderate	21.295 \| fine	93.22 \| fine	21.889 \| good	0.562 \| good	2.949 \| good	0.232 \| good
2025-07-31T09:00:00.000Z	75 \| moderate	21.73 \| fine	94.877 \| fine	26.106 \| good	0.584 \| good	2.724 \| good	0.237 \| good
2025-07-31T10:00:00.000Z	69 \| moderate	18.927 \| fine	82.914 \| fine	20.987 \| good	0.614 \| good	2.82 \| good	0.244 \| good
2025-07-31T11:00:00.000Z	71 \| moderate	19.776 \| fine	86.979 \| fine	19.302 \| good	0.645 \| good	2.917 \| good	0.251 \| good
2025-07-31T12:00:00.000Z	73 \| moderate	20.531 \| fine	90.933 \| fine	17.579 \| good	0.675 \| good	3.013 \| good	0.258 \| good
2025-07-31T13:00:00.000Z	73 \| moderate	20.718 \| fine	91.109 \| fine	21.759 \| good	0.645 \| good	2.639 \| good	0.254 \| good
2025-07-31T14:00:00.000Z	73 \| moderate	21.202 \| fine	93.103 \| fine	22.213 \| good	0.615 \| good	2.264 \| good	0.25 \| good
2025-07-31T15:00:00.000Z	71 \| moderate	19.512 \| fine	85.238 \| fine	21.535 \| good	0.584 \| good	1.89 \| good	0.246 \| good
2025-07-31T16:00:00.000Z	67 \| moderate	17.73 \| fine	78.98 \| fine	20.757 \| good	0.574 \| good	1.722 \| good	0.246 \| good
2025-07-31T17:00:00.000Z	64 \| moderate	16.491 \| fine	73.066 \| fine	21.469 \| good	0.564 \| good	1.555 \| good	0.246 \| good
2025-07-31T18:00:00.000Z	66 \| moderate	16.589 \| fine	73.09 \| fine	23.35 \| good	0.554 \| good	1.387 \| good	0.246 \| good
2025-07-31T19:00:00.000Z	66 \| moderate	17.397 \| fine	77.023 \| fine	23.824 \| good	0.6 \| good	2.023 \| good	0.251 \| good
2025-07-31T20:00:00.000Z	67 \| moderate	18.33 \| fine	80.936 \| fine	24.501 \| good	0.645 \| good	2.659 \| good	0.257 \| good
2025-07-31T21:00:00.000Z	67 \| moderate	17.55 \| fine	77.068 \| fine	25.363 \| good	0.691 \| good	3.294 \| good	0.263 \| good
2025-07-31T22:00:00.000Z	64 \| moderate	15.6 \| fine	69.124 \| fine	23.248 \| good	0.729 \| good	4.43 \| good	0.27 \| good
2025-07-31T23:00:00.000Z	60 \| moderate	13.955 \| fine	62.953 \| fine	20.808 \| good	0.768 \| good	5.566 \| good	0.278 \| good
2025-08-01T00:00:00.000Z	56 \| moderate	12.462 \| fine	56.962 \| fine	23.562 \| good	0.807 \| good	6.702 \| good	0.286 \| good
2025-08-01T01:00:00.000Z	56 \| moderate	12.409 \| fine	55.227 \| fine	22.863 \| good	0.768 \| good	6.358 \| good	0.274 \| good
2025-08-01T02:00:00.000Z	60 \| moderate	13.828 \| fine	62.937 \| fine	20.95 \| good	0.73 \| good	6.014 \| good	0.262 \| good
2025-08-01T03:00:00.000Z	64 \| moderate	15.809 \| fine	70.953 \| fine	19.896 \| good	0.691 \| good	5.67 \| good	0.25 \| good
2025-08-01T04:00:00.000Z	67 \| moderate	18.477 \| fine	81.02 \| fine	20.057 \| good	0.699 \| good	5.274 \| good	0.242 \| good
2025-08-01T05:00:00.000Z	71 \| moderate	20.374 \| fine	88.953 \| fine	20.542 \| good	0.707 \| good	4.877 \| good	0.234 \| good
2025-08-01T06:00:00.000Z	69 \| moderate	19.255 \| fine	20.234 \| good	36.188 \| good	0.716 \| good	4.492 \| good	0.227 \| good
2025-08-01T07:00:00.000Z	69 \| moderate	19.264 \| fine	84.954 \| fine	19.095 \| good	0.748 \| good	4.2 \| good	0.224 \| good
2025-08-01T08:00:00.000Z	66 \| moderate	17.404 \| fine	77 \| fine	19.417 \| good	0.78 \| good	3.92 \| good	0.221 \| good
2025-08-01T09:00:00.000Z	62 \| moderate	14.776 \| fine	65.19 \| fine	19.919 \| good	0.813 \| good	3.639 \| good	0.218 \| good
2025-08-01T10:00:00.000Z	60 \| moderate	13.557 \| fine	61.023 \| fine	19.119 \| good	0.776 \| good	3.699 \| good	0.22 \| good
2025-08-01T11:00:00.000Z	56 \| moderate	12.125 \| fine	55.028 \| fine	20.319 \| good	0.739 \| good	3.758 \| good	0.222 \| good
2025-08-01T12:00:00.000Z	66 \| moderate	16.514 \| fine	16.927 \| good	34.881 \| good	0.706 \| good	3.821 \| good	0.224 \| good
2025-08-01T13:00:00.000Z	66 \| moderate	16.705 \| fine	17.138 \| good	35.82 \| good	0.675 \| good	3.889 \| good	0.223 \| good

Littleton

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Littleton, Massachusetts air quality map: Track AQI near you

0.33ppm

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 03:00:00 on 2025-07-30.

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 07:00:00 on 2025-07-30.

What is the current air quality in Littleton, Massachusetts?

The current air quality in Littleton, Massachusetts is 49, 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 9.005 μg/m³.

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

The current PM₁₀ concentration at Littleton, Massachusetts is 25.476 μg/m³.

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

The current carbon monoxide (CO) concentration at Littleton, Massachusetts is 0.322 ppm.

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

The current sulfur dioxide (SO₂) concentration at Littleton, Massachusetts is 0.57 ppb.

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

The current ozone (O₃) concentration at Littleton, Massachusetts is 18.537 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Littleton, Massachusetts is 13.359 ppb.

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