What are the current PM10 levels at Stoneham, Massachusetts?

The current PM10 levels in Stoneham, Massachusetts are 45.28 μg/m3.

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

The current sulfur dioxide (SO2) levels in Stoneham, Massachusetts are 0.488 ppb.

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

The current ozone (O3) levels at Stoneham, Massachusetts is 21.388 ppm.

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

The current nitrogen dioxide (NO2) levels at Stoneham, Massachusetts is 30.179 ppb.

Real-time air quality index in Stoneham, Massachusetts today

Q: What are the current PM2.5 levels in Stoneham, Massachusetts?

The measured PM2.5 levels in Stoneham, Massachusetts at present are 9.937 μg/m3.

Stay updated with real-time air quality in Stoneham, 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

Stoneham, Massachusetts

Last updated: ... (Local time)

Common air pollutants in Stoneham, Massachusetts

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

9.94 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

45.28 μg/m³

155

255

425

605+

Ozone (O₃)

21.39 ppb

201

201+

Sulfur Dioxide (SO₂)

0.49 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

30.18 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.43 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Stoneham, Massachusetts

Get Live Pollen Counts

Stoneham, Massachusetts

Scroll To Air Quality Map

Track live Stoneham, Massachusetts air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-12-27T01:00:00.000Z	38 \| good	6.764 \| good	31.378 \| good	19.147 \| good	0.42 \| good	13.895 \| good	0.356 \| good
2025-12-27T02:00:00.000Z	33 \| good	6.377 \| good	31.422 \| good	21.783 \| good	0.407 \| good	12.949 \| good	0.345 \| good
2025-12-27T03:00:00.000Z	33 \| good	6.027 \| good	28.431 \| good	16.374 \| good	0.397 \| good	13.34 \| good	0.345 \| good
2025-12-27T04:00:00.000Z	33 \| good	5.602 \| good	21.428 \| good	23.231 \| good	0.398 \| good	17.395 \| good	0.345 \| good
2025-12-27T05:00:00.000Z	33 \| good	5.659 \| good	24.358 \| good	27.33 \| good	0.396 \| good	12.947 \| good	0.256 \| good
2025-12-27T06:00:00.000Z	27 \| good	5.071 \| good	22.264 \| good	26.13 \| good	0.389 \| good	10.887 \| good	0.233 \| good
2025-12-27T07:00:00.000Z	27 \| good	5.006 \| good	21.969 \| good	23.376 \| good	0.391 \| good	10.984 \| good	0.233 \| good
2025-12-27T08:00:00.000Z	27 \| good	5.228 \| good	21.385 \| good	26.202 \| good	0.394 \| good	14.09 \| good	0.233 \| good
2025-12-27T09:00:00.000Z	23 \| good	4.282 \| good	12.875 \| good	24.554 \| good	0.408 \| good	14.625 \| good	0.2 \| good
2025-12-27T10:00:00.000Z	24 \| good	3.876 \| good	13.655 \| good	26.409 \| good	0.416 \| good	13.726 \| good	0.211 \| good
2025-12-27T11:00:00.000Z	22 \| good	3.202 \| good	12.731 \| good	24.304 \| good	0.428 \| good	12.795 \| good	0.2 \| good
2025-12-27T12:00:00.000Z	28 \| good	3.535 \| good	16.122 \| good	30.41 \| good	0.415 \| good	12.199 \| good	0.2 \| good
2025-12-27T13:00:00.000Z	29 \| good	3.203 \| good	15.179 \| good	30.722 \| good	0.414 \| good	11.369 \| good	0.2 \| good
2025-12-27T14:00:00.000Z	28 \| good	3.173 \| good	12.721 \| good	30.366 \| good	0.401 \| good	11.785 \| good	0.254 \| good
2025-12-27T15:00:00.000Z	27 \| good	3.199 \| good	11.661 \| good	29.465 \| good	0.4 \| good	11.067 \| good	0.254 \| good
2025-12-27T16:00:00.000Z	27 \| good	3.106 \| good	13.948 \| good	29.371 \| good	0.387 \| good	10.146 \| good	0.233 \| good
2025-12-27T17:00:00.000Z	29 \| good	3.198 \| good	12.79 \| good	30.985 \| good	0.387 \| good	10.27 \| good	0.244 \| good
2025-12-27T18:00:00.000Z	28 \| good	3.173 \| good	14.499 \| good	29.859 \| good	0.411 \| good	9.509 \| good	0.233 \| good
2025-12-27T19:00:00.000Z	30 \| good	3.367 \| good	15.152 \| good	31.912 \| good	0.411 \| good	9.169 \| good	0.233 \| good
2025-12-27T20:00:00.000Z	31 \| good	3.301 \| good	11.856 \| good	33.328 \| good	0.401 \| good	9.085 \| good	0.233 \| good
2025-12-27T21:00:00.000Z	31 \| good	3.346 \| good	12.59 \| good	33.761 \| good	0.39 \| good	9.609 \| good	0.277 \| good
2025-12-27T22:00:00.000Z	35 \| good	4.817 \| good	37.522 \| good	31.211 \| good	0.337 \| good	11.271 \| good	0.32 \| good
2025-12-27T23:00:00.000Z	36 \| good	6.301 \| good	38.965 \| good	27.018 \| good	0.402 \| good	18.009 \| good	0.35 \| good
2025-12-28T00:00:00.000Z	33 \| good	5.855 \| good	22.677 \| good	25.301 \| good	0.397 \| good	17.864 \| good	0.427 \| good
2025-12-28T01:00:00.000Z	49 \| good	8.962 \| good	38.909 \| good	23.108 \| good	0.375 \| good	24.897 \| good	0.548 \| good
2025-12-28T02:00:00.000Z	38 \| good	7.267 \| good	23.236 \| good	16.25 \| good	0.427 \| good	24.66 \| good	0.584 \| good
2025-12-28T03:00:00.000Z	56 \| moderate	12.372 \| fine	56.245 \| fine	12.169 \| good	0.835 \| good	27.911 \| good	0.295 \| good
2025-12-28T04:00:00.000Z	49 \| good	8.954 \| good	30.198 \| good	18.07 \| good	0.436 \| good	20.784 \| good	0.407 \| good
2025-12-28T05:00:00.000Z	52 \| moderate	10.491 \| good	43.462 \| good	16.017 \| good	0.463 \| good	20.794 \| good	0.396 \| good
2025-12-28T06:00:00.000Z	54 \| moderate	10.725 \| good	50.261 \| good	17.956 \| good	0.41 \| good	15.606 \| good	0.396 \| good
2025-12-28T07:00:00.000Z	54 \| moderate	10.85 \| good	53.146 \| good	14.596 \| good	0.398 \| good	16.524 \| good	0.376 \| good
2025-12-28T08:00:00.000Z	54 \| moderate	10.814 \| good	45.515 \| good	19.827 \| good	0.387 \| good	27.382 \| good	0.342 \| good
2025-12-28T09:00:00.000Z	53 \| moderate	10.043 \| good	59.031 \| fine	15.918 \| good	0.465 \| good	21.765 \| good	0.406 \| good
2025-12-28T10:00:00.000Z	49 \| good	9.434 \| good	36.566 \| good	6.995 \| good	0.512 \| good	17.509 \| good	0.417 \| good
2025-12-28T11:00:00.000Z	38 \| good	7.29 \| good	27.515 \| good	12.819 \| good	0.528 \| good	17.498 \| good	0.417 \| good
2025-12-28T12:00:00.000Z	38 \| good	6.993 \| good	27.145 \| good	12.689 \| good	0.572 \| good	25.305 \| good	0.416 \| good
2025-12-28T13:00:00.000Z	54 \| moderate	10.566 \| good	38.62 \| good	16.654 \| good	0.574 \| good	28.382 \| good	0.46 \| good
2025-12-28T14:00:00.000Z	54 \| moderate	10.719 \| good	25.966 \| good	18.745 \| good	0.432 \| good	25.858 \| good	0.434 \| good
2025-12-28T15:00:00.000Z	38 \| good	6.558 \| good	26.254 \| good	15.074 \| good	0.489 \| good	19.06 \| good	0.35 \| good
2025-12-28T16:00:00.000Z	52 \| moderate	6.923 \| good	56.941 \| fine	16.521 \| good	0.484 \| good	16.434 \| good	0.329 \| good
2025-12-28T17:00:00.000Z	27 \| good	5.318 \| good	21.11 \| good	23.997 \| good	0.463 \| good	13.944 \| good	0.296 \| good
2025-12-28T18:00:00.000Z	46 \| good	4.829 \| good	50.199 \| good	30.825 \| good	0.478 \| good	12.055 \| good	0.296 \| good
2025-12-28T19:00:00.000Z	33 \| good	5.637 \| good	20.473 \| good	30.453 \| good	0.446 \| good	13.428 \| good	0.296 \| good
2025-12-28T20:00:00.000Z	33 \| good	6.446 \| good	31.548 \| good	30.393 \| good	0.437 \| good	14.681 \| good	0.342 \| good
2025-12-28T21:00:00.000Z	38 \| good	7.183 \| good	40.894 \| good	28.099 \| good	0.464 \| good	16.491 \| good	0.362 \| good
2025-12-28T22:00:00.000Z	44 \| good	8.247 \| good	31.246 \| good	29.358 \| good	0.473 \| good	22.554 \| good	0.372 \| good
2025-12-28T23:00:00.000Z	49 \| good	9.25 \| good	40.614 \| good	19.491 \| good	0.5 \| good	26.27 \| good	0.439 \| good
2025-12-29T00:00:00.000Z	52 \| moderate	9.58 \| good	39.928 \| good	25.508 \| good	0.452 \| good	26.964 \| good	0.386 \| good
2025-12-29T00:00:00.000Z	52 \| moderate	9.937 \| good	45.28 \| good	21.388 \| good	0.488 \| good	30.179 \| good	0.431 \| good
2025-12-29T01:00:00.000Z	62 \| moderate	14.808 \| fine	66.206 \| fine	16.724 \| good	1.566 \| good	27.378 \| good	0.297 \| good
2025-12-29T02:00:00.000Z	62 \| moderate	15.289 \| fine	69 \| fine	15.682 \| good	1.784 \| good	25.667 \| good	0.283 \| good
2025-12-29T03:00:00.000Z	67 \| moderate	17.615 \| fine	78.191 \| fine	10.111 \| good	2.001 \| good	23.956 \| good	0.268 \| good
2025-12-29T04:00:00.000Z	71 \| moderate	19.643 \| fine	86.618 \| fine	7.204 \| good	1.857 \| good	23.253 \| good	0.256 \| good
2025-12-29T05:00:00.000Z	69 \| moderate	18.916 \| fine	83.687 \| fine	8.085 \| good	1.712 \| good	22.549 \| good	0.245 \| good
2025-12-29T06:00:00.000Z	62 \| moderate	15.389 \| fine	68.744 \| fine	13.142 \| good	1.568 \| good	21.845 \| good	0.233 \| good
2025-12-29T07:00:00.000Z	52 \| moderate	9.693 \| good	43.301 \| good	21.11 \| good	1.212 \| good	16.116 \| good	0.205 \| good
2025-12-29T08:00:00.000Z	38 \| good	6.982 \| good	30.91 \| good	23.494 \| good	0.857 \| good	10.386 \| good	0.177 \| good
2025-12-29T09:00:00.000Z	33 \| good	5.686 \| good	24.664 \| good	22.048 \| good	0.501 \| good	4.657 \| good	0.149 \| good
2025-12-29T10:00:00.000Z	22 \| good	3.622 \| good	15.273 \| good	20.485 \| good	0.549 \| good	5.655 \| good	0.153 \| good
2025-12-29T11:00:00.000Z	19 \| good	2.708 \| good	11.238 \| good	20.612 \| good	0.596 \| good	6.654 \| good	0.158 \| good
2025-12-29T12:00:00.000Z	20 \| good	2.492 \| good	10.378 \| good	22.02 \| good	0.644 \| good	7.652 \| good	0.162 \| good
2025-12-29T13:00:00.000Z	19 \| good	2.576 \| good	10.446 \| good	21.069 \| good	0.83 \| good	8.51 \| good	0.171 \| good
2025-12-29T14:00:00.000Z	19 \| good	3.358 \| good	14.71 \| good	20.303 \| good	1.016 \| good	9.368 \| good	0.181 \| good
2025-12-29T15:00:00.000Z	22 \| good	4.097 \| good	17.898 \| good	19.098 \| good	1.202 \| good	10.225 \| good	0.191 \| good
2025-12-29T16:00:00.000Z	22 \| good	3.551 \| good	15.6 \| good	23.501 \| good	1.145 \| good	9.754 \| good	0.189 \| good
2025-12-29T17:00:00.000Z	27 \| good	5.43 \| good	23.038 \| good	24.198 \| good	1.089 \| good	9.283 \| good	0.187 \| good
2025-12-29T18:00:00.000Z	38 \| good	6.717 \| good	29.992 \| good	24.59 \| good	1.032 \| good	8.812 \| good	0.186 \| good
2025-12-29T19:00:00.000Z	44 \| good	8.291 \| good	36.192 \| good	22.722 \| good	1.103 \| good	10.111 \| good	0.192 \| good
2025-12-29T20:00:00.000Z	33 \| good	5.646 \| good	24.312 \| good	29.372 \| good	1.174 \| good	11.41 \| good	0.198 \| good
2025-12-29T21:00:00.000Z	33 \| good	3.683 \| good	15.838 \| good	36.296 \| good	1.244 \| good	12.709 \| good	0.204 \| good
2025-12-29T22:00:00.000Z	31 \| good	4.608 \| good	20.067 \| good	34.378 \| good	1.405 \| good	11.784 \| good	0.199 \| good
2025-12-29T23:00:00.000Z	33 \| good	6.133 \| good	27.279 \| good	31.638 \| good	1.565 \| good	10.858 \| good	0.194 \| good
2025-12-30T00:00:00.000Z	44 \| good	7.872 \| good	34.485 \| good	29.328 \| good	1.725 \| good	9.933 \| good	0.188 \| good
2025-12-30T01:00:00.000Z	44 \| good	8.041 \| good	35.352 \| good	27.277 \| good	1.396 \| good	8.075 \| good	0.185 \| good
2025-12-30T02:00:00.000Z	33 \| good	5.85 \| good	25.513 \| good	24.818 \| good	1.067 \| good	6.217 \| good	0.181 \| good
2025-12-30T03:00:00.000Z	22 \| good	4.405 \| good	19.078 \| good	23.202 \| good	0.738 \| good	4.359 \| good	0.177 \| good
2025-12-30T04:00:00.000Z	22 \| good	3.945 \| good	17.109 \| good	22.941 \| good	0.658 \| good	3.787 \| good	0.17 \| good
2025-12-30T05:00:00.000Z	23 \| good	3.188 \| good	13.707 \| good	25.439 \| good	0.577 \| good	3.215 \| good	0.162 \| good
2025-12-30T06:00:00.000Z	27 \| good	2.472 \| good	10.067 \| good	28.947 \| good	0.496 \| good	2.642 \| good	0.154 \| good
2025-12-30T07:00:00.000Z	28 \| good	1.236 \| good	5 \| good	29.925 \| good	0.477 \| good	2.419 \| good	0.149 \| good
2025-12-30T08:00:00.000Z	28 \| good	0.166 \| good	0.188 \| good	30.324 \| good	0.458 \| good	2.196 \| good	0.145 \| good
2025-12-30T09:00:00.000Z	29 \| good	0.16 \| good	0 \| good	30.947 \| good	0.438 \| good	1.972 \| good	0.14 \| good
2025-12-30T10:00:00.000Z	28 \| good	0.246 \| good	0.907 \| good	30.358 \| good	0.468 \| good	2.689 \| good	0.144 \| good
2025-12-30T11:00:00.000Z	27 \| good	0.473 \| good	1.771 \| good	28.868 \| good	0.497 \| good	3.405 \| good	0.147 \| good
2025-12-30T12:00:00.000Z	26 \| good	0.588 \| good	2.013 \| good	27.772 \| good	0.526 \| good	4.122 \| good	0.151 \| good
2025-12-30T13:00:00.000Z	26 \| good	0.307 \| good	0.976 \| good	28.274 \| good	0.461 \| good	3.423 \| good	0.147 \| good
2025-12-30T14:00:00.000Z	27 \| good	0.193 \| good	0.454 \| good	28.898 \| good	0.395 \| good	2.723 \| good	0.143 \| good
2025-12-30T15:00:00.000Z	28 \| good	0.284 \| good	0.987 \| good	29.86 \| good	0.33 \| good	2.024 \| good	0.139 \| good
2025-12-30T16:00:00.000Z	29 \| good	0.764 \| good	2.969 \| good	31.391 \| good	0.32 \| good	1.907 \| good	0.137 \| good
2025-12-30T17:00:00.000Z	30 \| good	1.175 \| good	5 \| good	32.255 \| good	0.311 \| good	1.791 \| good	0.136 \| good
2025-12-30T18:00:00.000Z	31 \| good	0.834 \| good	3.055 \| good	33.011 \| good	0.301 \| good	1.674 \| good	0.135 \| good
2025-12-30T19:00:00.000Z	31 \| good	0.908 \| good	3.582 \| good	33.449 \| good	0.312 \| good	2.027 \| good	0.136 \| good
2025-12-30T20:00:00.000Z	32 \| good	0.627 \| good	2.092 \| good	35.084 \| good	0.323 \| good	2.381 \| good	0.137 \| good
2025-12-30T21:00:00.000Z	33 \| good	1.199 \| good	4.864 \| good	35.771 \| good	0.333 \| good	2.735 \| good	0.138 \| good
2025-12-30T22:00:00.000Z	31 \| good	1.707 \| good	6.979 \| good	33.396 \| good	0.392 \| good	3.211 \| good	0.14 \| good
2025-12-30T23:00:00.000Z	31 \| good	1.97 \| good	8.117 \| good	33.58 \| good	0.451 \| good	3.688 \| good	0.141 \| good
2025-12-31T00:00:00.000Z	33 \| good	1.846 \| good	1.885 \| good	35.737 \| good	0.517 \| good	4.259 \| good	0.143 \| good

Stoneham

Empower business decisions with accurate air quality data

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

0.48ppm

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

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Frequently asked questions

How frequently is the air quality data for Stoneham, Massachusetts updated?

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

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

The worst air quality in Stoneham, Massachusetts was recorded at 03:00:00 on 2025-12-28.

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

The best air quality in Stoneham, Massachusetts was recorded at 05:00:00 on 2025-12-28.

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

The real-time air quality index in Stoneham, Massachusetts is 52, currently categorized as Moderate.

Which pollutant is found most often in Stoneham, Massachusetts?

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

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

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

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

The measured PM_2.5 levels in Stoneham, Massachusetts at present are 9.937 μg/m³.

What are the current PM₁₀ levels at Stoneham, Massachusetts?

The current PM₁₀ levels in Stoneham, Massachusetts are 45.28 μg/m³.

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

The current carbon monoxide (CO) level in Stoneham, Massachusetts is 0.431 ppm.

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

The current sulfur dioxide (SO₂) levels in Stoneham, Massachusetts are 0.488 ppb.

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

The current ozone (O₃) levels at Stoneham, Massachusetts is 21.388 ppm.

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

The current nitrogen dioxide (NO₂) levels at Stoneham, Massachusetts is 30.179 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-12-27T01:00:00.000Z	38 \| good	6.764 \| good	31.378 \| good	19.147 \| good	0.42 \| good	13.895 \| good	0.356 \| good
2025-12-27T02:00:00.000Z	33 \| good	6.377 \| good	31.422 \| good	21.783 \| good	0.407 \| good	12.949 \| good	0.345 \| good
2025-12-27T03:00:00.000Z	33 \| good	6.027 \| good	28.431 \| good	16.374 \| good	0.397 \| good	13.34 \| good	0.345 \| good
2025-12-27T04:00:00.000Z	33 \| good	5.602 \| good	21.428 \| good	23.231 \| good	0.398 \| good	17.395 \| good	0.345 \| good
2025-12-27T05:00:00.000Z	33 \| good	5.659 \| good	24.358 \| good	27.33 \| good	0.396 \| good	12.947 \| good	0.256 \| good
2025-12-27T06:00:00.000Z	27 \| good	5.071 \| good	22.264 \| good	26.13 \| good	0.389 \| good	10.887 \| good	0.233 \| good
2025-12-27T07:00:00.000Z	27 \| good	5.006 \| good	21.969 \| good	23.376 \| good	0.391 \| good	10.984 \| good	0.233 \| good
2025-12-27T08:00:00.000Z	27 \| good	5.228 \| good	21.385 \| good	26.202 \| good	0.394 \| good	14.09 \| good	0.233 \| good
2025-12-27T09:00:00.000Z	23 \| good	4.282 \| good	12.875 \| good	24.554 \| good	0.408 \| good	14.625 \| good	0.2 \| good
2025-12-27T10:00:00.000Z	24 \| good	3.876 \| good	13.655 \| good	26.409 \| good	0.416 \| good	13.726 \| good	0.211 \| good
2025-12-27T11:00:00.000Z	22 \| good	3.202 \| good	12.731 \| good	24.304 \| good	0.428 \| good	12.795 \| good	0.2 \| good
2025-12-27T12:00:00.000Z	28 \| good	3.535 \| good	16.122 \| good	30.41 \| good	0.415 \| good	12.199 \| good	0.2 \| good
2025-12-27T13:00:00.000Z	29 \| good	3.203 \| good	15.179 \| good	30.722 \| good	0.414 \| good	11.369 \| good	0.2 \| good
2025-12-27T14:00:00.000Z	28 \| good	3.173 \| good	12.721 \| good	30.366 \| good	0.401 \| good	11.785 \| good	0.254 \| good
2025-12-27T15:00:00.000Z	27 \| good	3.199 \| good	11.661 \| good	29.465 \| good	0.4 \| good	11.067 \| good	0.254 \| good
2025-12-27T16:00:00.000Z	27 \| good	3.106 \| good	13.948 \| good	29.371 \| good	0.387 \| good	10.146 \| good	0.233 \| good
2025-12-27T17:00:00.000Z	29 \| good	3.198 \| good	12.79 \| good	30.985 \| good	0.387 \| good	10.27 \| good	0.244 \| good
2025-12-27T18:00:00.000Z	28 \| good	3.173 \| good	14.499 \| good	29.859 \| good	0.411 \| good	9.509 \| good	0.233 \| good
2025-12-27T19:00:00.000Z	30 \| good	3.367 \| good	15.152 \| good	31.912 \| good	0.411 \| good	9.169 \| good	0.233 \| good
2025-12-27T20:00:00.000Z	31 \| good	3.301 \| good	11.856 \| good	33.328 \| good	0.401 \| good	9.085 \| good	0.233 \| good
2025-12-27T21:00:00.000Z	31 \| good	3.346 \| good	12.59 \| good	33.761 \| good	0.39 \| good	9.609 \| good	0.277 \| good
2025-12-27T22:00:00.000Z	35 \| good	4.817 \| good	37.522 \| good	31.211 \| good	0.337 \| good	11.271 \| good	0.32 \| good
2025-12-27T23:00:00.000Z	36 \| good	6.301 \| good	38.965 \| good	27.018 \| good	0.402 \| good	18.009 \| good	0.35 \| good
2025-12-28T00:00:00.000Z	33 \| good	5.855 \| good	22.677 \| good	25.301 \| good	0.397 \| good	17.864 \| good	0.427 \| good
2025-12-28T01:00:00.000Z	49 \| good	8.962 \| good	38.909 \| good	23.108 \| good	0.375 \| good	24.897 \| good	0.548 \| good
2025-12-28T02:00:00.000Z	38 \| good	7.267 \| good	23.236 \| good	16.25 \| good	0.427 \| good	24.66 \| good	0.584 \| good
2025-12-28T03:00:00.000Z	56 \| moderate	12.372 \| fine	56.245 \| fine	12.169 \| good	0.835 \| good	27.911 \| good	0.295 \| good
2025-12-28T04:00:00.000Z	49 \| good	8.954 \| good	30.198 \| good	18.07 \| good	0.436 \| good	20.784 \| good	0.407 \| good
2025-12-28T05:00:00.000Z	52 \| moderate	10.491 \| good	43.462 \| good	16.017 \| good	0.463 \| good	20.794 \| good	0.396 \| good
2025-12-28T06:00:00.000Z	54 \| moderate	10.725 \| good	50.261 \| good	17.956 \| good	0.41 \| good	15.606 \| good	0.396 \| good
2025-12-28T07:00:00.000Z	54 \| moderate	10.85 \| good	53.146 \| good	14.596 \| good	0.398 \| good	16.524 \| good	0.376 \| good
2025-12-28T08:00:00.000Z	54 \| moderate	10.814 \| good	45.515 \| good	19.827 \| good	0.387 \| good	27.382 \| good	0.342 \| good
2025-12-28T09:00:00.000Z	53 \| moderate	10.043 \| good	59.031 \| fine	15.918 \| good	0.465 \| good	21.765 \| good	0.406 \| good
2025-12-28T10:00:00.000Z	49 \| good	9.434 \| good	36.566 \| good	6.995 \| good	0.512 \| good	17.509 \| good	0.417 \| good
2025-12-28T11:00:00.000Z	38 \| good	7.29 \| good	27.515 \| good	12.819 \| good	0.528 \| good	17.498 \| good	0.417 \| good
2025-12-28T12:00:00.000Z	38 \| good	6.993 \| good	27.145 \| good	12.689 \| good	0.572 \| good	25.305 \| good	0.416 \| good
2025-12-28T13:00:00.000Z	54 \| moderate	10.566 \| good	38.62 \| good	16.654 \| good	0.574 \| good	28.382 \| good	0.46 \| good
2025-12-28T14:00:00.000Z	54 \| moderate	10.719 \| good	25.966 \| good	18.745 \| good	0.432 \| good	25.858 \| good	0.434 \| good
2025-12-28T15:00:00.000Z	38 \| good	6.558 \| good	26.254 \| good	15.074 \| good	0.489 \| good	19.06 \| good	0.35 \| good
2025-12-28T16:00:00.000Z	52 \| moderate	6.923 \| good	56.941 \| fine	16.521 \| good	0.484 \| good	16.434 \| good	0.329 \| good
2025-12-28T17:00:00.000Z	27 \| good	5.318 \| good	21.11 \| good	23.997 \| good	0.463 \| good	13.944 \| good	0.296 \| good
2025-12-28T18:00:00.000Z	46 \| good	4.829 \| good	50.199 \| good	30.825 \| good	0.478 \| good	12.055 \| good	0.296 \| good
2025-12-28T19:00:00.000Z	33 \| good	5.637 \| good	20.473 \| good	30.453 \| good	0.446 \| good	13.428 \| good	0.296 \| good
2025-12-28T20:00:00.000Z	33 \| good	6.446 \| good	31.548 \| good	30.393 \| good	0.437 \| good	14.681 \| good	0.342 \| good
2025-12-28T21:00:00.000Z	38 \| good	7.183 \| good	40.894 \| good	28.099 \| good	0.464 \| good	16.491 \| good	0.362 \| good
2025-12-28T22:00:00.000Z	44 \| good	8.247 \| good	31.246 \| good	29.358 \| good	0.473 \| good	22.554 \| good	0.372 \| good
2025-12-28T23:00:00.000Z	49 \| good	9.25 \| good	40.614 \| good	19.491 \| good	0.5 \| good	26.27 \| good	0.439 \| good
2025-12-29T00:00:00.000Z	52 \| moderate	9.58 \| good	39.928 \| good	25.508 \| good	0.452 \| good	26.964 \| good	0.386 \| good
2025-12-29T00:00:00.000Z	52 \| moderate	9.937 \| good	45.28 \| good	21.388 \| good	0.488 \| good	30.179 \| good	0.431 \| good
2025-12-29T01:00:00.000Z	62 \| moderate	14.808 \| fine	66.206 \| fine	16.724 \| good	1.566 \| good	27.378 \| good	0.297 \| good
2025-12-29T02:00:00.000Z	62 \| moderate	15.289 \| fine	69 \| fine	15.682 \| good	1.784 \| good	25.667 \| good	0.283 \| good
2025-12-29T03:00:00.000Z	67 \| moderate	17.615 \| fine	78.191 \| fine	10.111 \| good	2.001 \| good	23.956 \| good	0.268 \| good
2025-12-29T04:00:00.000Z	71 \| moderate	19.643 \| fine	86.618 \| fine	7.204 \| good	1.857 \| good	23.253 \| good	0.256 \| good
2025-12-29T05:00:00.000Z	69 \| moderate	18.916 \| fine	83.687 \| fine	8.085 \| good	1.712 \| good	22.549 \| good	0.245 \| good
2025-12-29T06:00:00.000Z	62 \| moderate	15.389 \| fine	68.744 \| fine	13.142 \| good	1.568 \| good	21.845 \| good	0.233 \| good
2025-12-29T07:00:00.000Z	52 \| moderate	9.693 \| good	43.301 \| good	21.11 \| good	1.212 \| good	16.116 \| good	0.205 \| good
2025-12-29T08:00:00.000Z	38 \| good	6.982 \| good	30.91 \| good	23.494 \| good	0.857 \| good	10.386 \| good	0.177 \| good
2025-12-29T09:00:00.000Z	33 \| good	5.686 \| good	24.664 \| good	22.048 \| good	0.501 \| good	4.657 \| good	0.149 \| good
2025-12-29T10:00:00.000Z	22 \| good	3.622 \| good	15.273 \| good	20.485 \| good	0.549 \| good	5.655 \| good	0.153 \| good
2025-12-29T11:00:00.000Z	19 \| good	2.708 \| good	11.238 \| good	20.612 \| good	0.596 \| good	6.654 \| good	0.158 \| good
2025-12-29T12:00:00.000Z	20 \| good	2.492 \| good	10.378 \| good	22.02 \| good	0.644 \| good	7.652 \| good	0.162 \| good
2025-12-29T13:00:00.000Z	19 \| good	2.576 \| good	10.446 \| good	21.069 \| good	0.83 \| good	8.51 \| good	0.171 \| good
2025-12-29T14:00:00.000Z	19 \| good	3.358 \| good	14.71 \| good	20.303 \| good	1.016 \| good	9.368 \| good	0.181 \| good
2025-12-29T15:00:00.000Z	22 \| good	4.097 \| good	17.898 \| good	19.098 \| good	1.202 \| good	10.225 \| good	0.191 \| good
2025-12-29T16:00:00.000Z	22 \| good	3.551 \| good	15.6 \| good	23.501 \| good	1.145 \| good	9.754 \| good	0.189 \| good
2025-12-29T17:00:00.000Z	27 \| good	5.43 \| good	23.038 \| good	24.198 \| good	1.089 \| good	9.283 \| good	0.187 \| good
2025-12-29T18:00:00.000Z	38 \| good	6.717 \| good	29.992 \| good	24.59 \| good	1.032 \| good	8.812 \| good	0.186 \| good
2025-12-29T19:00:00.000Z	44 \| good	8.291 \| good	36.192 \| good	22.722 \| good	1.103 \| good	10.111 \| good	0.192 \| good
2025-12-29T20:00:00.000Z	33 \| good	5.646 \| good	24.312 \| good	29.372 \| good	1.174 \| good	11.41 \| good	0.198 \| good
2025-12-29T21:00:00.000Z	33 \| good	3.683 \| good	15.838 \| good	36.296 \| good	1.244 \| good	12.709 \| good	0.204 \| good
2025-12-29T22:00:00.000Z	31 \| good	4.608 \| good	20.067 \| good	34.378 \| good	1.405 \| good	11.784 \| good	0.199 \| good
2025-12-29T23:00:00.000Z	33 \| good	6.133 \| good	27.279 \| good	31.638 \| good	1.565 \| good	10.858 \| good	0.194 \| good
2025-12-30T00:00:00.000Z	44 \| good	7.872 \| good	34.485 \| good	29.328 \| good	1.725 \| good	9.933 \| good	0.188 \| good
2025-12-30T01:00:00.000Z	44 \| good	8.041 \| good	35.352 \| good	27.277 \| good	1.396 \| good	8.075 \| good	0.185 \| good
2025-12-30T02:00:00.000Z	33 \| good	5.85 \| good	25.513 \| good	24.818 \| good	1.067 \| good	6.217 \| good	0.181 \| good
2025-12-30T03:00:00.000Z	22 \| good	4.405 \| good	19.078 \| good	23.202 \| good	0.738 \| good	4.359 \| good	0.177 \| good
2025-12-30T04:00:00.000Z	22 \| good	3.945 \| good	17.109 \| good	22.941 \| good	0.658 \| good	3.787 \| good	0.17 \| good
2025-12-30T05:00:00.000Z	23 \| good	3.188 \| good	13.707 \| good	25.439 \| good	0.577 \| good	3.215 \| good	0.162 \| good
2025-12-30T06:00:00.000Z	27 \| good	2.472 \| good	10.067 \| good	28.947 \| good	0.496 \| good	2.642 \| good	0.154 \| good
2025-12-30T07:00:00.000Z	28 \| good	1.236 \| good	5 \| good	29.925 \| good	0.477 \| good	2.419 \| good	0.149 \| good
2025-12-30T08:00:00.000Z	28 \| good	0.166 \| good	0.188 \| good	30.324 \| good	0.458 \| good	2.196 \| good	0.145 \| good
2025-12-30T09:00:00.000Z	29 \| good	0.16 \| good	0 \| good	30.947 \| good	0.438 \| good	1.972 \| good	0.14 \| good
2025-12-30T10:00:00.000Z	28 \| good	0.246 \| good	0.907 \| good	30.358 \| good	0.468 \| good	2.689 \| good	0.144 \| good
2025-12-30T11:00:00.000Z	27 \| good	0.473 \| good	1.771 \| good	28.868 \| good	0.497 \| good	3.405 \| good	0.147 \| good
2025-12-30T12:00:00.000Z	26 \| good	0.588 \| good	2.013 \| good	27.772 \| good	0.526 \| good	4.122 \| good	0.151 \| good
2025-12-30T13:00:00.000Z	26 \| good	0.307 \| good	0.976 \| good	28.274 \| good	0.461 \| good	3.423 \| good	0.147 \| good
2025-12-30T14:00:00.000Z	27 \| good	0.193 \| good	0.454 \| good	28.898 \| good	0.395 \| good	2.723 \| good	0.143 \| good
2025-12-30T15:00:00.000Z	28 \| good	0.284 \| good	0.987 \| good	29.86 \| good	0.33 \| good	2.024 \| good	0.139 \| good
2025-12-30T16:00:00.000Z	29 \| good	0.764 \| good	2.969 \| good	31.391 \| good	0.32 \| good	1.907 \| good	0.137 \| good
2025-12-30T17:00:00.000Z	30 \| good	1.175 \| good	5 \| good	32.255 \| good	0.311 \| good	1.791 \| good	0.136 \| good
2025-12-30T18:00:00.000Z	31 \| good	0.834 \| good	3.055 \| good	33.011 \| good	0.301 \| good	1.674 \| good	0.135 \| good
2025-12-30T19:00:00.000Z	31 \| good	0.908 \| good	3.582 \| good	33.449 \| good	0.312 \| good	2.027 \| good	0.136 \| good
2025-12-30T20:00:00.000Z	32 \| good	0.627 \| good	2.092 \| good	35.084 \| good	0.323 \| good	2.381 \| good	0.137 \| good
2025-12-30T21:00:00.000Z	33 \| good	1.199 \| good	4.864 \| good	35.771 \| good	0.333 \| good	2.735 \| good	0.138 \| good
2025-12-30T22:00:00.000Z	31 \| good	1.707 \| good	6.979 \| good	33.396 \| good	0.392 \| good	3.211 \| good	0.14 \| good
2025-12-30T23:00:00.000Z	31 \| good	1.97 \| good	8.117 \| good	33.58 \| good	0.451 \| good	3.688 \| good	0.141 \| good
2025-12-31T00:00:00.000Z	33 \| good	1.846 \| good	1.885 \| good	35.737 \| good	0.517 \| good	4.259 \| good	0.143 \| good

Real-time air quality index in Stoneham, Massachusetts today

Common air pollutants in Stoneham, Massachusetts

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Stoneham, Massachusetts air quality forecast and history

Empower business decisions with accurate air quality data

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

Air quality in nearby cities

Wakefield, Massachusetts

Melrose, Massachusetts

Woburn, Massachusetts

Winchester, Massachusetts

Reading, Massachusetts

Saugus, Massachusetts

How accurate is Massachusetts, USA air quality data?

Air quality levels in US

Frequently asked questions

How frequently is the air quality data for Stoneham, Massachusetts updated?

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

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

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

Which pollutant is found most often in Stoneham, Massachusetts?

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

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

What are the current PM10 levels at Stoneham, Massachusetts?

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

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

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

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

What are the current PM₁₀ levels at Stoneham, Massachusetts?

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

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

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