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

The current PM10 concentration at Littleton, Massachusetts is 29.005 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Littleton, Massachusetts is 0.655 ppb.

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

The current ozone (O3) concentration at Littleton, Massachusetts is 36.903 ppm.

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

The current nitrogen dioxide (NO2) concentration at Littleton, Massachusetts is 3.511 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 9.032 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)

9.03 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

29.00 μg/m³

155

255

425

605+

Ozone (O₃)

36.90 ppb

201

201+

Sulfur Dioxide (SO₂)

0.66 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

3.51 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.12 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Looks like we don't have this data available right now

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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
2026-06-27T20:00:00.000Z	38 \| good	6.905 \| good	18.121 \| good	41.481 \| good	0.565 \| good	3.508 \| good	0.138 \| good
2026-06-27T21:00:00.000Z	39 \| good	6.637 \| good	40.127 \| good	42.466 \| good	0.618 \| good	3.146 \| good	0.138 \| good
2026-06-27T22:00:00.000Z	35 \| good	5.794 \| good	16.638 \| good	38.188 \| good	0.648 \| good	2.992 \| good	0.138 \| good
2026-06-27T23:00:00.000Z	35 \| good	5.385 \| good	28.476 \| good	37.941 \| good	0.731 \| good	3.802 \| good	0.138 \| good
2026-06-28T00:00:00.000Z	33 \| good	6.273 \| good	32.867 \| good	36.472 \| good	0.714 \| good	8.526 \| good	0.138 \| good
2026-06-28T01:00:00.000Z	33 \| good	6.256 \| good	27.406 \| good	36.303 \| good	0.696 \| good	11.606 \| good	0.187 \| good
2026-06-28T02:00:00.000Z	33 \| good	5.792 \| good	22.547 \| good	31.129 \| good	0.59 \| good	13.556 \| good	0.187 \| good
2026-06-28T03:00:00.000Z	54 \| moderate	10.565 \| good	46.988 \| good	20.404 \| good	0.349 \| good	9.353 \| good	0.22 \| good
2026-06-28T04:00:00.000Z	33 \| good	5.793 \| good	20.941 \| good	20.241 \| good	0.648 \| good	12.806 \| good	0.222 \| good
2026-06-28T05:00:00.000Z	33 \| good	6.312 \| good	29.634 \| good	18.854 \| good	0.648 \| good	8.323 \| good	0.222 \| good
2026-06-28T06:00:00.000Z	38 \| good	7.018 \| good	27.978 \| good	13.792 \| good	0.596 \| good	11.897 \| good	0.208 \| good
2026-06-28T07:00:00.000Z	33 \| good	5.534 \| good	19.755 \| good	15.398 \| good	0.629 \| good	12.498 \| good	0.208 \| good
2026-06-28T08:00:00.000Z	33 \| good	6.22 \| good	22.516 \| good	18.698 \| good	0.544 \| good	11.132 \| good	0.187 \| good
2026-06-28T09:00:00.000Z	38 \| good	7.488 \| good	26.842 \| good	26.641 \| good	0.625 \| good	8.01 \| good	0.187 \| good
2026-06-28T10:00:00.000Z	38 \| good	6.813 \| good	22.528 \| good	23.265 \| good	0.567 \| good	6.346 \| good	0.187 \| good
2026-06-28T11:00:00.000Z	44 \| good	8.281 \| good	25.066 \| good	18.397 \| good	0.629 \| good	6.18 \| good	0.204 \| good
2026-06-28T12:00:00.000Z	49 \| good	9.386 \| good	21.822 \| good	17.53 \| good	0.775 \| good	4.21 \| good	0.184 \| good
2026-06-28T13:00:00.000Z	44 \| good	8.427 \| good	31.509 \| good	24.384 \| good	0.737 \| good	4.705 \| good	0.18 \| good
2026-06-28T14:00:00.000Z	44 \| good	7.621 \| good	30.01 \| good	24.898 \| good	0.727 \| good	2.525 \| good	0.162 \| good
2026-06-28T15:00:00.000Z	44 \| good	8.355 \| good	33.044 \| good	27.023 \| good	0.596 \| good	1.618 \| good	0.162 \| good
2026-06-28T16:00:00.000Z	49 \| good	9.329 \| good	32.137 \| good	31.597 \| good	0.648 \| good	2.158 \| good	0.182 \| good
2026-06-28T17:00:00.000Z	44 \| good	8.074 \| good	23.579 \| good	30.449 \| good	0.61 \| good	1.529 \| good	0.132 \| good
2026-06-28T18:00:00.000Z	38 \| good	7.142 \| good	20.717 \| good	33.276 \| good	0.639 \| good	1.966 \| good	0.132 \| good
2026-06-28T19:00:00.000Z	44 \| good	7.5 \| good	28.833 \| good	34.587 \| good	0.726 \| good	2.03 \| good	0.151 \| good
2026-06-28T20:00:00.000Z	38 \| good	7.01 \| good	12.939 \| good	35.5 \| good	0.634 \| good	3.996 \| good	0.132 \| good
2026-06-28T21:00:00.000Z	44 \| good	7.652 \| good	40.802 \| good	41.898 \| good	0.612 \| good	2.733 \| good	0.151 \| good
2026-06-28T22:00:00.000Z	49 \| good	9.424 \| good	48.912 \| good	46.691 \| good	0.598 \| good	3.986 \| good	0.151 \| good
2026-06-28T23:00:00.000Z	44 \| good	7.717 \| good	34.229 \| good	38.915 \| good	0.62 \| good	4.502 \| good	0.151 \| good
2026-06-29T00:00:00.000Z	38 \| good	7.198 \| good	22.693 \| good	35.21 \| good	0.603 \| good	8.846 \| good	0.201 \| good
2026-06-29T01:00:00.000Z	35 \| good	6.005 \| good	20.17 \| good	38.152 \| good	0.612 \| good	15.11 \| good	0.19 \| good
2026-06-29T02:00:00.000Z	38 \| good	6.664 \| good	15.036 \| good	31.698 \| good	0.628 \| good	12.615 \| good	0.221 \| good
2026-06-29T03:00:00.000Z	52 \| moderate	10.087 \| good	45.011 \| good	27.741 \| good	0.366 \| good	9.24 \| good	0.233 \| good
2026-06-29T04:00:00.000Z	38 \| good	7.254 \| good	28.836 \| good	27.77 \| good	0.714 \| good	5.526 \| good	0.201 \| good
2026-06-29T05:00:00.000Z	38 \| good	7.071 \| good	34.706 \| good	31.367 \| good	0.488 \| good	6.636 \| good	0.201 \| good
2026-06-29T06:00:00.000Z	38 \| good	6.999 \| good	17.23 \| good	27.431 \| good	0.66 \| good	7.109 \| good	0.201 \| good
2026-06-29T07:00:00.000Z	35 \| good	5.483 \| good	37.607 \| good	24.039 \| good	0.661 \| good	7.627 \| good	0.201 \| good
2026-06-29T08:00:00.000Z	33 \| good	5.778 \| good	30.435 \| good	22.728 \| good	0.497 \| good	4.389 \| good	0.182 \| good
2026-06-29T09:00:00.000Z	49 \| good	8.54 \| good	27.961 \| good	19.131 \| good	0.695 \| good	5.396 \| good	0.201 \| good
2026-06-29T10:00:00.000Z	44 \| good	8.243 \| good	26.424 \| good	19.536 \| good	0.683 \| good	8.61 \| good	0.222 \| good
2026-06-29T11:00:00.000Z	49 \| good	9.169 \| good	24.7 \| good	16.672 \| good	0.544 \| good	8.823 \| good	0.222 \| good
2026-06-29T12:00:00.000Z	49 \| good	9.347 \| good	21.583 \| good	13.932 \| good	0.543 \| good	8.068 \| good	0.272 \| good
2026-06-29T13:00:00.000Z	44 \| good	8.137 \| good	28.122 \| good	16.803 \| good	0.545 \| good	7.211 \| good	0.259 \| good
2026-06-29T14:00:00.000Z	54 \| moderate	11.113 \| good	25.149 \| good	19.485 \| good	0.59 \| good	7.061 \| good	0.201 \| good
2026-06-29T15:00:00.000Z	54 \| moderate	11.002 \| good	35.852 \| good	26.409 \| good	0.624 \| good	4.53 \| good	0.201 \| good
2026-06-29T16:00:00.000Z	56 \| moderate	12.074 \| good	45.678 \| good	30.486 \| good	0.667 \| good	3.866 \| good	0.162 \| good
2026-06-29T17:00:00.000Z	56 \| moderate	12.019 \| good	40.763 \| good	35.635 \| good	0.655 \| good	3.779 \| good	0.119 \| good
2026-06-29T18:00:00.000Z	56 \| moderate	12.189 \| fine	50.453 \| good	37.073 \| good	0.647 \| good	2.156 \| good	0.119 \| good
2026-06-29T19:00:00.000Z	49 \| good	9.032 \| good	29.005 \| good	36.903 \| good	0.655 \| good	3.511 \| good	0.118 \| good
2026-06-29T19:00:00.000Z	49 \| good	9.032 \| good	29.005 \| good	36.903 \| good	0.655 \| good	3.511 \| good	0.118 \| good
2026-06-29T20:00:00.000Z	35 \| good	3.364 \| good	14.966 \| good	38.302 \| good	0.315 \| good	0.816 \| good	0.139 \| good
2026-06-29T21:00:00.000Z	40 \| good	5.207 \| good	22.966 \| good	42.837 \| good	0.308 \| good	1.018 \| good	0.14 \| good
2026-06-29T22:00:00.000Z	40 \| good	6.236 \| good	27.932 \| good	42.667 \| good	0.305 \| good	1.575 \| good	0.146 \| good
2026-06-29T23:00:00.000Z	32 \| good	5.368 \| good	23.11 \| good	34.811 \| good	0.309 \| good	2.885 \| good	0.162 \| good
2026-06-30T00:00:00.000Z	38 \| good	6.883 \| good	30.087 \| good	25.092 \| good	0.32 \| good	4.596 \| good	0.176 \| good
2026-06-30T01:00:00.000Z	44 \| good	7.537 \| good	33.084 \| good	20.105 \| good	0.337 \| good	6.229 \| good	0.187 \| good
2026-06-30T02:00:00.000Z	49 \| good	8.827 \| good	39.139 \| good	21.773 \| good	0.343 \| good	6.65 \| good	0.191 \| good
2026-06-30T03:00:00.000Z	52 \| moderate	9.965 \| good	44.072 \| good	24.379 \| good	0.335 \| good	6.511 \| good	0.195 \| good
2026-06-30T04:00:00.000Z	52 \| moderate	9.588 \| good	42.905 \| good	23.728 \| good	0.315 \| good	5.814 \| good	0.2 \| good
2026-06-30T05:00:00.000Z	49 \| good	8.843 \| good	38.995 \| good	22.487 \| good	0.291 \| good	5.091 \| good	0.205 \| good
2026-06-30T06:00:00.000Z	49 \| good	8.817 \| good	39.008 \| good	21.955 \| good	0.275 \| good	4.44 \| good	0.206 \| good
2026-06-30T07:00:00.000Z	52 \| moderate	10.318 \| good	45.911 \| good	21.379 \| good	0.263 \| good	4.029 \| good	0.206 \| good
2026-06-30T08:00:00.000Z	56 \| moderate	11.589 \| good	50.972 \| good	22.813 \| good	0.263 \| good	3.901 \| good	0.204 \| good
2026-06-30T09:00:00.000Z	54 \| moderate	11.211 \| good	49.881 \| good	23.147 \| good	0.281 \| good	3.992 \| good	0.202 \| good
2026-06-30T10:00:00.000Z	56 \| moderate	11.954 \| good	53.84 \| good	20.914 \| good	0.311 \| good	4.167 \| good	0.2 \| good
2026-06-30T11:00:00.000Z	58 \| moderate	13.21 \| fine	59.107 \| fine	28.971 \| good	0.345 \| good	4.224 \| good	0.202 \| good
2026-06-30T12:00:00.000Z	58 \| moderate	13.453 \| fine	60.889 \| fine	38.879 \| good	0.414 \| good	3.798 \| good	0.203 \| good
2026-06-30T13:00:00.000Z	56 \| moderate	12.402 \| fine	56.78 \| fine	46.483 \| good	0.492 \| good	2.82 \| good	0.2 \| good
2026-06-30T14:00:00.000Z	54 \| moderate	10.865 \| good	48 \| good	49.817 \| good	0.495 \| good	1.933 \| good	0.196 \| good
2026-06-30T15:00:00.000Z	52 \| moderate	9.717 \| good	43.086 \| good	49.457 \| good	0.415 \| good	1.281 \| good	0.187 \| good
2026-06-30T16:00:00.000Z	49 \| good	9.41 \| good	42.05 \| good	50.39 \| good	0.31 \| good	0.875 \| good	0.171 \| good
2026-06-30T17:00:00.000Z	52 \| moderate	9.647 \| good	43.042 \| good	53.176 \| good	0.271 \| good	0.747 \| good	0.163 \| good
2026-06-30T18:00:00.000Z	52 \| moderate	9.927 \| good	44.025 \| good	50.749 \| good	0.252 \| good	0.715 \| good	0.161 \| good
2026-06-30T19:00:00.000Z	52 \| moderate	10.439 \| good	46 \| good	46.339 \| good	0.255 \| good	0.743 \| good	0.163 \| good
2026-06-30T20:00:00.000Z	54 \| moderate	11.269 \| good	50.08 \| good	42.861 \| good	0.274 \| good	0.827 \| good	0.166 \| good
2026-06-30T21:00:00.000Z	54 \| moderate	11.403 \| good	50.264 \| good	48.968 \| good	0.314 \| good	1.066 \| good	0.172 \| good
2026-06-30T22:00:00.000Z	58 \| moderate	12.356 \| fine	54.981 \| good	56.645 \| fine	0.355 \| good	1.553 \| good	0.178 \| good
2026-06-30T23:00:00.000Z	58 \| moderate	9.359 \| good	41.921 \| good	56.503 \| fine	0.378 \| good	2.608 \| good	0.185 \| good
2026-07-01T00:00:00.000Z	49 \| good	8.57 \| good	37.075 \| good	52.18 \| good	0.348 \| good	2.993 \| good	0.18 \| good
2026-07-01T01:00:00.000Z	44 \| good	7.199 \| good	31.969 \| good	47.611 \| good	0.323 \| good	3.449 \| good	0.175 \| good
2026-07-01T02:00:00.000Z	40 \| good	6.515 \| good	28.961 \| good	42.564 \| good	0.297 \| good	3.913 \| good	0.17 \| good
2026-07-01T03:00:00.000Z	38 \| good	6.697 \| good	29.949 \| good	36.528 \| good	0.275 \| good	4.037 \| good	0.165 \| good
2026-07-01T04:00:00.000Z	44 \| good	7.671 \| good	33.914 \| good	32.885 \| good	0.263 \| good	3.952 \| good	0.161 \| good
2026-07-01T05:00:00.000Z	49 \| good	9.349 \| good	41.907 \| good	31.963 \| good	0.271 \| good	3.627 \| good	0.156 \| good
2026-07-01T06:00:00.000Z	54 \| moderate	11.059 \| good	48.896 \| good	30.45 \| good	0.309 \| good	3.455 \| good	0.152 \| good
2026-07-01T07:00:00.000Z	58 \| moderate	12.684 \| fine	56.838 \| fine	28.142 \| good	0.355 \| good	3.666 \| good	0.154 \| good
2026-07-01T08:00:00.000Z	58 \| moderate	13.186 \| fine	58.94 \| fine	29.248 \| good	0.401 \| good	3.995 \| good	0.156 \| good
2026-07-01T09:00:00.000Z	58 \| moderate	13.257 \| fine	58.94 \| fine	26.86 \| good	0.452 \| good	4.176 \| good	0.157 \| good
2026-07-01T10:00:00.000Z	58 \| moderate	13.294 \| fine	60.72 \| fine	27.368 \| good	0.481 \| good	4.189 \| good	0.158 \| good
2026-07-01T11:00:00.000Z	58 \| moderate	12.786 \| fine	57.072 \| fine	29.717 \| good	0.473 \| good	3.801 \| good	0.162 \| good
2026-07-01T12:00:00.000Z	58 \| moderate	12.871 \| fine	57.089 \| fine	36.138 \| good	0.466 \| good	3.007 \| good	0.167 \| good
2026-07-01T13:00:00.000Z	60 \| moderate	14.146 \| fine	62.999 \| fine	41.533 \| good	0.463 \| good	2.121 \| good	0.173 \| good
2026-07-01T14:00:00.000Z	64 \| moderate	15.792 \| fine	70.811 \| fine	45.465 \| good	0.468 \| good	1.486 \| good	0.177 \| good
2026-07-01T15:00:00.000Z	66 \| moderate	17.003 \| fine	75.069 \| fine	46.929 \| good	0.489 \| good	1.12 \| good	0.18 \| good
2026-07-01T16:00:00.000Z	69 \| moderate	18.768 \| fine	83.046 \| fine	46.005 \| good	0.508 \| good	0.895 \| good	0.179 \| good
2026-07-01T17:00:00.000Z	73 \| moderate	20.955 \| fine	92.932 \| fine	48.236 \| good	0.484 \| good	0.784 \| good	0.176 \| good
2026-07-01T18:00:00.000Z	73 \| moderate	21.069 \| fine	92.958 \| fine	49.168 \| good	0.449 \| good	0.753 \| good	0.173 \| good
2026-07-01T19:00:00.000Z	73 \| moderate	21.097 \| fine	92.835 \| fine	47.181 \| good	0.428 \| good	0.751 \| good	0.174 \| good

Littleton

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Littleton, Massachusetts air quality map: Track AQI near you

0.11ppm

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 2026-06-29.

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 08:00:00 on 2026-06-29.

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 9.032 μg/m³.

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

The current PM₁₀ concentration at Littleton, Massachusetts is 29.005 μg/m³.

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

The current carbon monoxide (CO) concentration at Littleton, Massachusetts is 0.118 ppm.

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

The current sulfur dioxide (SO₂) concentration at Littleton, Massachusetts is 0.655 ppb.

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

The current ozone (O₃) concentration at Littleton, Massachusetts is 36.903 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Littleton, Massachusetts is 3.511 ppb.

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