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

The current PM10 concentration at Littleton, Massachusetts is 25.772 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Littleton, Massachusetts is 0.635 ppb.

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

The current ozone (O3) concentration at Littleton, Massachusetts is 34.705 ppm.

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

The current nitrogen dioxide (NO2) concentration at Littleton, Massachusetts is 4.497 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 6.75 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)

6.75 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

25.77 μg/m³

155

255

425

605+

Ozone (O₃)

34.70 ppb

201

201+

Sulfur Dioxide (SO₂)

0.64 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.50 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.26 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

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

Please contact us for custom requests

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
2026-06-10T21:00:00.000Z	71 \| moderate	9.577 \| good	33.926 \| good	60.75 \| fine	0.552 \| good	6.813 \| good	0.221 \| good
2026-06-10T22:00:00.000Z	48 \| good	8.242 \| good	23.448 \| good	52.299 \| good	0.606 \| good	6.048 \| good	0.221 \| good
2026-06-10T23:00:00.000Z	45 \| good	8.251 \| good	34.773 \| good	48.611 \| good	0.587 \| good	4.902 \| good	0.2 \| good
2026-06-11T00:00:00.000Z	49 \| good	8.622 \| good	29.935 \| good	47.726 \| good	0.636 \| good	4.942 \| good	0.201 \| good
2026-06-11T01:00:00.000Z	49 \| good	9.393 \| good	30.719 \| good	47.017 \| good	0.593 \| good	5.321 \| good	0.211 \| good
2026-06-11T02:00:00.000Z	52 \| moderate	9.54 \| good	37.493 \| good	44.511 \| good	0.571 \| good	6.137 \| good	0.189 \| good
2026-06-11T03:00:00.000Z	52 \| moderate	9.569 \| good	35.284 \| good	37.586 \| good	0.544 \| good	5.566 \| good	0.189 \| good
2026-06-11T04:00:00.000Z	52 \| moderate	9.71 \| good	34.946 \| good	41.696 \| good	0.572 \| good	4.809 \| good	0.189 \| good
2026-06-11T05:00:00.000Z	52 \| moderate	9.696 \| good	28.126 \| good	35.151 \| good	0.546 \| good	6.297 \| good	0.189 \| good
2026-06-11T06:00:00.000Z	52 \| moderate	9.665 \| good	37.921 \| good	35.617 \| good	0.546 \| good	6.304 \| good	0.189 \| good
2026-06-11T07:00:00.000Z	52 \| moderate	9.849 \| good	27.637 \| good	32.831 \| good	0.631 \| good	6.368 \| good	0.189 \| good
2026-06-11T08:00:00.000Z	52 \| moderate	10.365 \| good	35.761 \| good	32.258 \| good	0.592 \| good	2.333 \| good	0.189 \| good
2026-06-11T09:00:00.000Z	52 \| moderate	9.987 \| good	34.374 \| good	27.767 \| good	0.555 \| good	8.147 \| good	0.189 \| good
2026-06-11T10:00:00.000Z	54 \| moderate	10.524 \| good	46.592 \| good	27.536 \| good	0.555 \| good	11.309 \| good	0.23 \| good
2026-06-11T11:00:00.000Z	52 \| moderate	9.574 \| good	32.346 \| good	25.429 \| good	0.575 \| good	10.344 \| good	0.261 \| good
2026-06-11T12:00:00.000Z	54 \| moderate	10.557 \| good	27.978 \| good	22.547 \| good	0.601 \| good	9.767 \| good	0.24 \| good
2026-06-11T13:00:00.000Z	54 \| moderate	10.604 \| good	30.115 \| good	25.132 \| good	0.602 \| good	8.443 \| good	0.239 \| good
2026-06-11T14:00:00.000Z	49 \| good	8.691 \| good	32.279 \| good	29.265 \| good	0.537 \| good	4.993 \| good	0.201 \| good
2026-06-11T15:00:00.000Z	44 \| good	7.813 \| good	26.171 \| good	34.745 \| good	0.575 \| good	3.466 \| good	0.174 \| good
2026-06-11T16:00:00.000Z	44 \| good	8.059 \| good	37.594 \| good	34.788 \| good	0.618 \| good	3.967 \| good	0.156 \| good
2026-06-11T17:00:00.000Z	38 \| good	6.762 \| good	22.463 \| good	35.753 \| good	0.521 \| good	3.618 \| good	0.156 \| good
2026-06-11T18:00:00.000Z	34 \| good	6.444 \| good	23.336 \| good	37.39 \| good	0.517 \| good	2.56 \| good	0.156 \| good
2026-06-11T19:00:00.000Z	38 \| good	6.738 \| good	24.519 \| good	39.277 \| good	0.558 \| good	2.615 \| good	0.156 \| good
2026-06-11T20:00:00.000Z	38 \| good	6.578 \| good	28.314 \| good	38.084 \| good	0.538 \| good	1.886 \| good	0.174 \| good
2026-06-11T21:00:00.000Z	37 \| good	5.609 \| good	24.255 \| good	40.279 \| good	0.548 \| good	2.262 \| good	0.156 \| good
2026-06-11T22:00:00.000Z	40 \| good	4.955 \| good	14.705 \| good	42.829 \| good	0.548 \| good	2.251 \| good	0.156 \| good
2026-06-11T23:00:00.000Z	36 \| good	5.018 \| good	14.687 \| good	39.134 \| good	0.597 \| good	2.021 \| good	0.156 \| good
2026-06-12T00:00:00.000Z	37 \| good	5.393 \| good	20.197 \| good	40.157 \| good	0.638 \| good	3.111 \| good	0.212 \| good
2026-06-12T01:00:00.000Z	37 \| good	4.309 \| good	28.573 \| good	39.657 \| good	0.637 \| good	9.318 \| good	0.254 \| good
2026-06-12T02:00:00.000Z	31 \| good	4.221 \| good	27.397 \| good	33.333 \| good	0.678 \| good	12.023 \| good	0.275 \| good
2026-06-12T03:00:00.000Z	27 \| good	4.805 \| good	18.989 \| good	28.142 \| good	0.657 \| good	8.264 \| good	0.292 \| good
2026-06-12T04:00:00.000Z	29 \| good	4.407 \| good	13.465 \| good	31.15 \| good	0.656 \| good	10.056 \| good	0.289 \| good
2026-06-12T05:00:00.000Z	27 \| good	5.387 \| good	16.076 \| good	24.257 \| good	0.634 \| good	10.806 \| good	0.254 \| good
2026-06-12T06:00:00.000Z	33 \| good	5.972 \| good	18.282 \| good	19.936 \| good	0.635 \| good	11.669 \| good	0.219 \| good
2026-06-12T07:00:00.000Z	27 \| good	5.441 \| good	15.002 \| good	13.104 \| good	0.635 \| good	14.032 \| good	0.219 \| good
2026-06-12T08:00:00.000Z	27 \| good	5.434 \| good	25.852 \| good	15.857 \| good	0.686 \| good	13.215 \| good	0.201 \| good
2026-06-12T09:00:00.000Z	27 \| good	5.003 \| good	20.98 \| good	17.236 \| good	0.662 \| good	11.629 \| good	0.191 \| good
2026-06-12T10:00:00.000Z	27 \| good	5.229 \| good	16.927 \| good	11.49 \| good	0.578 \| good	13.883 \| good	0.209 \| good
2026-06-12T11:00:00.000Z	33 \| good	5.988 \| good	19.382 \| good	10.893 \| good	0.585 \| good	12.613 \| good	0.191 \| good
2026-06-12T12:00:00.000Z	38 \| good	7.309 \| good	16.05 \| good	19.142 \| good	0.575 \| good	11.303 \| good	0.239 \| good
2026-06-12T13:00:00.000Z	33 \| good	6.392 \| good	19.391 \| good	20.019 \| good	0.574 \| good	8.26 \| good	0.239 \| good
2026-06-12T14:00:00.000Z	33 \| good	5.899 \| good	19.552 \| good	28.193 \| good	0.543 \| good	5.024 \| good	0.211 \| good
2026-06-12T15:00:00.000Z	27 \| good	5.3 \| good	17.779 \| good	22.594 \| good	0.544 \| good	5.034 \| good	0.23 \| good
2026-06-12T16:00:00.000Z	27 \| good	5.095 \| good	14.937 \| good	28.306 \| good	0.547 \| good	3.541 \| good	0.23 \| good
2026-06-12T17:00:00.000Z	33 \| good	5.938 \| good	14.416 \| good	32.661 \| good	0.601 \| good	5.261 \| good	0.219 \| good
2026-06-12T18:00:00.000Z	38 \| good	6.924 \| good	20.88 \| good	35.497 \| good	0.637 \| good	4.623 \| good	0.26 \| good
2026-06-12T19:00:00.000Z	38 \| good	6.75 \| good	25.772 \| good	34.705 \| good	0.635 \| good	4.497 \| good	0.26 \| good
2026-06-12T20:00:00.000Z	38 \| good	6.75 \| good	25.772 \| good	34.705 \| good	0.635 \| good	4.497 \| good	0.26 \| good
2026-06-12T21:00:00.000Z	41 \| good	4.961 \| good	21.131 \| good	44.089 \| good	0.169 \| good	1.108 \| good	0.144 \| good
2026-06-12T22:00:00.000Z	38 \| good	6.472 \| good	29.098 \| good	40.972 \| good	0.156 \| good	1.347 \| good	0.147 \| good
2026-06-12T23:00:00.000Z	49 \| good	9.233 \| good	41.008 \| good	37.695 \| good	0.161 \| good	1.678 \| good	0.15 \| good
2026-06-13T00:00:00.000Z	52 \| moderate	10.157 \| good	45.01 \| good	38.52 \| good	0.194 \| good	3.719 \| good	0.168 \| good
2026-06-13T01:00:00.000Z	54 \| moderate	10.816 \| good	48.092 \| good	37.901 \| good	0.235 \| good	5.041 \| good	0.177 \| good
2026-06-13T02:00:00.000Z	52 \| moderate	10.284 \| good	45.085 \| good	36.103 \| good	0.266 \| good	5.416 \| good	0.179 \| good
2026-06-13T03:00:00.000Z	49 \| good	9.209 \| good	40.766 \| good	34.437 \| good	0.276 \| good	4.836 \| good	0.175 \| good
2026-06-13T04:00:00.000Z	38 \| good	6.371 \| good	28.118 \| good	41.054 \| good	0.255 \| good	3.291 \| good	0.163 \| good
2026-06-13T05:00:00.000Z	49 \| good	8.916 \| good	39.114 \| good	40.448 \| good	0.225 \| good	1.937 \| good	0.15 \| good
2026-06-13T06:00:00.000Z	54 \| moderate	11.45 \| good	50.952 \| good	36.184 \| good	0.225 \| good	1.397 \| good	0.139 \| good
2026-06-13T07:00:00.000Z	52 \| moderate	9.937 \| good	44.127 \| good	33.188 \| good	0.258 \| good	1.185 \| good	0.13 \| good
2026-06-13T08:00:00.000Z	49 \| good	8.945 \| good	39.139 \| good	32 \| good	0.274 \| good	1.142 \| good	0.123 \| good
2026-06-13T09:00:00.000Z	49 \| good	8.607 \| good	37.956 \| good	28.097 \| good	0.255 \| good	1.177 \| good	0.118 \| good
2026-06-13T10:00:00.000Z	44 \| good	8.163 \| good	36.009 \| good	28.21 \| good	0.213 \| good	1.237 \| good	0.115 \| good
2026-06-13T11:00:00.000Z	44 \| good	7.504 \| good	33.021 \| good	30.97 \| good	0.168 \| good	1.241 \| good	0.114 \| good
2026-06-13T12:00:00.000Z	38 \| good	7.083 \| good	31.057 \| good	33.848 \| good	0.126 \| good	1.014 \| good	0.111 \| good
2026-06-13T13:00:00.000Z	38 \| good	6.686 \| good	29.992 \| good	35.564 \| good	0.102 \| good	0.831 \| good	0.11 \| good
2026-06-13T14:00:00.000Z	34 \| good	6.412 \| good	28.161 \| good	37.117 \| good	0.092 \| good	0.657 \| good	0.109 \| good
2026-06-13T15:00:00.000Z	38 \| good	6.948 \| good	30.99 \| good	38.494 \| good	0.084 \| good	0.531 \| good	0.109 \| good
2026-06-13T16:00:00.000Z	38 \| good	6.635 \| good	29.999 \| good	38.8 \| good	0.075 \| good	0.456 \| good	0.109 \| good
2026-06-13T17:00:00.000Z	37 \| good	5.752 \| good	25.033 \| good	40.152 \| good	0.067 \| good	0.422 \| good	0.108 \| good
2026-06-13T18:00:00.000Z	37 \| good	5.436 \| good	23.074 \| good	40.05 \| good	0.063 \| good	0.411 \| good	0.106 \| good
2026-06-13T19:00:00.000Z	37 \| good	5.263 \| good	23 \| good	40.035 \| good	0.065 \| good	0.418 \| good	0.105 \| good
2026-06-13T20:00:00.000Z	36 \| good	5.06 \| good	21.938 \| good	38.92 \| good	0.073 \| good	0.451 \| good	0.106 \| good
2026-06-13T21:00:00.000Z	35 \| good	5.188 \| good	22.087 \| good	38.187 \| good	0.089 \| good	0.542 \| good	0.109 \| good
2026-06-13T22:00:00.000Z	35 \| good	6.108 \| good	27.058 \| good	38.116 \| good	0.111 \| good	0.71 \| good	0.112 \| good
2026-06-13T23:00:00.000Z	38 \| good	6.79 \| good	30.083 \| good	34.154 \| good	0.136 \| good	1.136 \| good	0.118 \| good
2026-06-14T00:00:00.000Z	52 \| moderate	9.846 \| good	44.046 \| good	35.077 \| good	0.171 \| good	2.234 \| good	0.128 \| good
2026-06-14T01:00:00.000Z	52 \| moderate	9.508 \| good	42.831 \| good	34.897 \| good	0.203 \| good	3.244 \| good	0.134 \| good
2026-06-14T02:00:00.000Z	44 \| good	7.895 \| good	34.901 \| good	36.787 \| good	0.207 \| good	2.953 \| good	0.131 \| good
2026-06-14T03:00:00.000Z	33 \| good	6.384 \| good	28.87 \| good	33.079 \| good	0.198 \| good	2.295 \| good	0.126 \| good
2026-06-14T04:00:00.000Z	33 \| good	5.911 \| good	26.755 \| good	29.435 \| good	0.19 \| good	1.901 \| good	0.122 \| good
2026-06-14T05:00:00.000Z	33 \| good	6.151 \| good	27.053 \| good	24.971 \| good	0.185 \| good	1.813 \| good	0.121 \| good
2026-06-14T06:00:00.000Z	33 \| good	6.236 \| good	27.976 \| good	22.853 \| good	0.186 \| good	2.044 \| good	0.121 \| good
2026-06-14T07:00:00.000Z	33 \| good	6.097 \| good	27.03 \| good	22.531 \| good	0.194 \| good	2.429 \| good	0.123 \| good
2026-06-14T08:00:00.000Z	33 \| good	5.881 \| good	25.167 \| good	21.842 \| good	0.206 \| good	2.982 \| good	0.126 \| good
2026-06-14T09:00:00.000Z	33 \| good	5.709 \| good	24.954 \| good	20.686 \| good	0.218 \| good	3.619 \| good	0.13 \| good
2026-06-14T10:00:00.000Z	33 \| good	6.227 \| good	27.945 \| good	19.377 \| good	0.23 \| good	4.259 \| good	0.137 \| good
2026-06-14T11:00:00.000Z	38 \| good	6.631 \| good	29.925 \| good	24.457 \| good	0.228 \| good	3.768 \| good	0.144 \| good
2026-06-14T12:00:00.000Z	33 \| good	6.46 \| good	28.998 \| good	32.912 \| good	0.251 \| good	2.258 \| good	0.137 \| good
2026-06-14T13:00:00.000Z	35 \| good	5.754 \| good	24.965 \| good	38.288 \| good	0.263 \| good	1.401 \| good	0.131 \| good
2026-06-14T14:00:00.000Z	38 \| good	5.106 \| good	22.066 \| good	41.362 \| good	0.238 \| good	0.97 \| good	0.126 \| good
2026-06-14T15:00:00.000Z	39 \| good	5.816 \| good	25.066 \| good	42.096 \| good	0.201 \| good	0.705 \| good	0.12 \| good
2026-06-14T16:00:00.000Z	41 \| good	6.212 \| good	27.968 \| good	44.147 \| good	0.172 \| good	0.566 \| good	0.118 \| good
2026-06-14T17:00:00.000Z	44 \| good	6.819 \| good	30.035 \| good	47.554 \| good	0.162 \| good	0.505 \| good	0.118 \| good
2026-06-14T18:00:00.000Z	47 \| good	7.17 \| good	32.001 \| good	50.959 \| good	0.182 \| good	0.516 \| good	0.12 \| good
2026-06-14T19:00:00.000Z	51 \| moderate	6.823 \| good	30.117 \| good	54.526 \| good	0.244 \| good	0.568 \| good	0.124 \| good
2026-06-14T20:00:00.000Z	61 \| moderate	8.433 \| good	37.051 \| good	57.957 \| fine	0.34 \| good	0.684 \| good	0.13 \| good

Littleton

Get reliable air quality data to drive your business

Littleton, Massachusetts air quality map: Track AQI near you

0.24ppm

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

Air quality levels in US

Check live rankings of places in the USA affected by air pollution.

View Polluted Cities

Check live rankings of places in the USA with the cleanest air.

View Clean Cities

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 10:00:00 on 2026-06-11.

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 04:00:00 on 2026-06-12.

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 6.75 μg/m³.

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

The current PM₁₀ concentration at Littleton, Massachusetts is 25.772 μg/m³.

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

The current carbon monoxide (CO) concentration at Littleton, Massachusetts is 0.26 ppm.

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

The current sulfur dioxide (SO₂) concentration at Littleton, Massachusetts is 0.635 ppb.

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

The current ozone (O₃) concentration at Littleton, Massachusetts is 34.705 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Littleton, Massachusetts is 4.497 ppb.

Certified

APIs

Refund Policy

Historical Climate Data

Terms & Conditions