What is the current level of PM10 in Somerville, Massachusetts?

Somerville, Massachusetts currently has a PM10 concentration of 68.866 μg/m3.

What is the current level of sulfur dioxide (SO2) in Somerville, Massachusetts?

The current sulfur dioxide (SO2) concentration in Somerville, Massachusetts is 0.402 ppb.

What is the current level of ozone (O3) in Somerville, Massachusetts?

Somerville, Massachusetts currently has an ozone (O3) concentration of 24.728 ppm.

What is the current level of nitrogen dioxide (NO2) in Somerville, Massachusetts?

The current level of nitrogen dioxide (NO2) in Somerville, Massachusetts is 8.224 ppb.

Current air quality index in Somerville, Massachusetts today

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

Stay updated with real-time air quality in Somerville, 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

Somerville, Massachusetts

Last updated: ... (Local time)

Common air pollutants in Somerville, Massachusetts

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

27.62 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

107.12 μg/m³

155

255

425

605+

Ozone (O₃)

24.15 ppb

201

201+

Sulfur Dioxide (SO₂)

0.31 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

5.49 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.25 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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Somerville, Massachusetts

Scroll To Air Quality Map

Track live Somerville, Massachusetts air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-07-30T04:00:00.000Z	52 \| moderate	10.367 \| good	42.57 \| good	30.493 \| good	0.368 \| good	10.832 \| good	0.299 \| good
2025-07-30T05:00:00.000Z	52 \| moderate	10.367 \| good	42.57 \| good	41.759 \| good	0.367 \| good	12.647 \| good	0.339 \| good
2025-07-30T06:00:00.000Z	49 \| good	8.791 \| good	43.581 \| good	36.932 \| good	0.295 \| good	14.255 \| good	0.282 \| good
2025-07-30T07:00:00.000Z	44 \| good	8.21 \| good	40.53 \| good	22.552 \| good	0.549 \| good	17.397 \| good	0.348 \| good
2025-07-30T08:00:00.000Z	56 \| moderate	11.743 \| good	46.786 \| good	20.532 \| good	0.554 \| good	17.811 \| good	0.345 \| good
2025-07-30T09:00:00.000Z	54 \| moderate	11.047 \| good	44.479 \| good	16.441 \| good	0.472 \| good	8.437 \| good	0.207 \| good
2025-07-30T10:00:00.000Z	52 \| moderate	10.385 \| good	42.149 \| good	20.812 \| good	0.457 \| good	9.676 \| good	0.213 \| good
2025-07-30T11:00:00.000Z	52 \| moderate	9.852 \| good	39.886 \| good	19.804 \| good	0.465 \| good	11.411 \| good	0.216 \| good
2025-07-30T12:00:00.000Z	52 \| moderate	9.595 \| good	39.127 \| good	16.452 \| good	0.47 \| good	11.682 \| good	0.315 \| good
2025-07-30T13:00:00.000Z	52 \| moderate	9.678 \| good	39.552 \| good	23.438 \| good	0.5 \| good	10.998 \| good	0.3 \| good
2025-07-30T14:00:00.000Z	52 \| moderate	10.115 \| good	41.828 \| good	27.517 \| good	0.643 \| good	10.706 \| good	0.259 \| good
2025-07-30T15:00:00.000Z	52 \| moderate	10.286 \| good	42.199 \| good	28.713 \| good	0.501 \| good	8.618 \| good	0.222 \| good
2025-07-30T16:00:00.000Z	54 \| moderate	10.509 \| good	43.274 \| good	36.017 \| good	0.498 \| good	8.925 \| good	0.21 \| good
2025-07-30T17:00:00.000Z	54 \| moderate	10.808 \| good	44.696 \| good	39.015 \| good	0.734 \| good	12.642 \| good	0.252 \| good
2025-07-30T18:00:00.000Z	54 \| moderate	11.158 \| good	47.425 \| good	38.509 \| good	0.654 \| good	10.644 \| good	0.247 \| good
2025-07-30T19:00:00.000Z	56 \| moderate	11.577 \| good	48.18 \| good	49.999 \| good	0.658 \| good	9.985 \| good	0.255 \| good
2025-07-30T20:00:00.000Z	56 \| moderate	11.732 \| good	48.4 \| good	49.045 \| good	0.599 \| good	9.399 \| good	0.255 \| good
2025-07-30T21:00:00.000Z	56 \| moderate	11.648 \| good	48.036 \| good	43.91 \| good	0.644 \| good	9.943 \| good	0.303 \| good
2025-07-30T22:00:00.000Z	54 \| moderate	11.475 \| good	47.741 \| good	40.973 \| good	0.548 \| good	9.682 \| good	0.341 \| good
2025-07-30T23:00:00.000Z	54 \| moderate	11.282 \| good	47.115 \| good	35.919 \| good	0.771 \| good	15.35 \| good	0.257 \| good
2025-07-31T00:00:00.000Z	54 \| moderate	10.688 \| good	44.385 \| good	40.547 \| good	0.506 \| good	7.22 \| good	0.257 \| good
2025-07-31T01:00:00.000Z	52 \| moderate	10.488 \| good	43.41 \| good	39.989 \| good	0.469 \| good	10.384 \| good	0.341 \| good
2025-07-31T02:00:00.000Z	52 \| moderate	10.407 \| good	43.152 \| good	36.402 \| good	0.472 \| good	10.112 \| good	0.296 \| good
2025-07-31T03:00:00.000Z	52 \| moderate	10.04 \| good	40.877 \| good	32.472 \| good	0.469 \| good	8.243 \| good	0.254 \| good
2025-07-31T04:00:00.000Z	52 \| moderate	10.04 \| good	40.877 \| good	32.771 \| good	0.466 \| good	8.253 \| good	0.254 \| good
2025-07-31T05:00:00.000Z	52 \| moderate	10.04 \| good	40.877 \| good	38.035 \| good	0.432 \| good	10.959 \| good	0.3 \| good
2025-07-31T06:00:00.000Z	53 \| moderate	10.327 \| good	58.618 \| fine	37.56 \| good	0.849 \| good	10.737 \| good	0.318 \| good
2025-07-31T07:00:00.000Z	71 \| moderate	20.356 \| fine	61.254 \| fine	20.058 \| good	0.407 \| good	11.731 \| good	0.2 \| good
2025-07-31T08:00:00.000Z	49 \| good	8.946 \| good	35.503 \| good	29.067 \| good	0.415 \| good	12.622 \| good	0.2 \| good
2025-07-31T09:00:00.000Z	49 \| good	8.706 \| good	34.825 \| good	27.731 \| good	0.467 \| good	5.96 \| good	0.161 \| good
2025-07-31T10:00:00.000Z	49 \| good	8.914 \| good	35.821 \| good	29.522 \| good	0.488 \| good	4.799 \| good	0.168 \| good
2025-07-31T11:00:00.000Z	49 \| good	9.456 \| good	38.048 \| good	24.76 \| good	0.428 \| good	4.843 \| good	0.258 \| good
2025-07-31T12:00:00.000Z	54 \| moderate	11.199 \| good	45.015 \| good	26.068 \| good	0.451 \| good	6.915 \| good	0.255 \| good
2025-07-31T13:00:00.000Z	60 \| moderate	14.078 \| fine	57.319 \| fine	23.984 \| good	0.485 \| good	8.564 \| good	0.304 \| good
2025-07-31T14:00:00.000Z	66 \| moderate	17.174 \| fine	68.866 \| fine	24.728 \| good	0.402 \| good	8.224 \| good	0.304 \| good
2025-07-31T15:00:00.000Z	71 \| moderate	19.696 \| fine	78.467 \| fine	25.987 \| good	0.403 \| good	8.381 \| good	0.352 \| good
2025-07-31T16:00:00.000Z	77 \| moderate	23.436 \| fine	92.693 \| fine	26.541 \| good	0.446 \| good	6.778 \| good	0.352 \| good
2025-07-31T17:00:00.000Z	84 \| moderate	27.415 \| fine	107.307 \| fine	21.511 \| good	0.403 \| good	7.016 \| good	0.304 \| good
2025-07-31T18:00:00.000Z	90 \| moderate	29.785 \| fine	116.201 \| fine	20.644 \| good	0.351 \| good	6.247 \| good	0.304 \| good
2025-07-31T19:00:00.000Z	97 \| moderate	33.886 \| fine	132.426 \| fine	24.522 \| good	0.402 \| good	5.505 \| good	0.355 \| good
2025-07-31T20:00:00.000Z	96 \| moderate	33.248 \| fine	130.231 \| fine	25.744 \| good	0.407 \| good	4.596 \| good	0.307 \| good
2025-07-31T21:00:00.000Z	94 \| moderate	31.99 \| fine	124.509 \| fine	25.425 \| good	0.361 \| good	5.751 \| good	0.3 \| good
2025-07-31T22:00:00.000Z	92 \| moderate	30.909 \| fine	119.54 \| fine	24.356 \| good	0.351 \| good	6.731 \| good	0.3 \| good
2025-07-31T23:00:00.000Z	58 \| moderate	13.01 \| fine	58.376 \| fine	22.55 \| good	0.737 \| good	5.871 \| good	0.286 \| good
2025-08-01T00:00:00.000Z	90 \| moderate	30.415 \| fine	118.456 \| fine	22.319 \| good	0.354 \| good	8.021 \| good	0.3 \| good
2025-08-01T01:00:00.000Z	88 \| moderate	28.943 \| fine	112.037 \| fine	18.785 \| good	0.353 \| good	6.306 \| good	0.303 \| good
2025-08-01T02:00:00.000Z	88 \| moderate	28.739 \| fine	110.598 \| fine	20.622 \| good	0.309 \| good	5.069 \| good	0.252 \| good
2025-08-01T03:00:00.000Z	86 \| moderate	27.619 \| fine	107.12 \| fine	24.153 \| good	0.309 \| good	5.485 \| good	0.252 \| good
2025-08-01T03:00:00.000Z	86 \| moderate	27.619 \| fine	107.12 \| fine	24.153 \| good	0.309 \| good	5.485 \| good	0.252 \| good
2025-07-31T16:00:00.000Z	60 \| moderate	14.27 \| fine	64.213 \| fine	28.071 \| good	0.783 \| good	3.689 \| good	0.262 \| good
2025-07-31T17:00:00.000Z	58 \| moderate	13.262 \| fine	60.213 \| fine	21.19 \| good	0.746 \| good	3.38 \| good	0.26 \| good
2025-07-31T18:00:00.000Z	60 \| moderate	13.836 \| fine	62.301 \| fine	16.782 \| good	0.708 \| good	3.071 \| good	0.258 \| good
2025-07-31T19:00:00.000Z	60 \| moderate	14.497 \| fine	64.912 \| fine	17.825 \| good	0.774 \| good	3.739 \| good	0.261 \| good
2025-07-31T20:00:00.000Z	60 \| moderate	14.268 \| fine	63.355 \| fine	19.925 \| good	0.839 \| good	4.408 \| good	0.263 \| good
2025-07-31T21:00:00.000Z	56 \| moderate	12.41 \| fine	55.724 \| fine	19.746 \| good	0.904 \| good	5.077 \| good	0.266 \| good
2025-07-31T22:00:00.000Z	54 \| moderate	11.024 \| good	48.396 \| good	20.909 \| good	0.885 \| good	5.854 \| good	0.269 \| good
2025-07-31T23:00:00.000Z	56 \| moderate	12.094 \| good	54.786 \| good	19.861 \| good	0.866 \| good	6.632 \| good	0.272 \| good
2025-08-01T00:00:00.000Z	56 \| moderate	12.229 \| fine	55.022 \| fine	21.608 \| good	0.847 \| good	7.409 \| good	0.275 \| good
2025-08-01T01:00:00.000Z	60 \| moderate	13.588 \| fine	60.976 \| fine	19.161 \| good	0.808 \| good	6.833 \| good	0.269 \| good
2025-08-01T02:00:00.000Z	64 \| moderate	16.279 \| fine	72.201 \| fine	18.302 \| good	0.77 \| good	6.257 \| good	0.263 \| good
2025-08-01T03:00:00.000Z	66 \| moderate	16.596 \| fine	73.176 \| fine	19.996 \| good	0.732 \| good	5.681 \| good	0.257 \| good
2025-08-01T04:00:00.000Z	66 \| moderate	17.338 \| fine	76.886 \| fine	22.589 \| good	0.719 \| good	5.159 \| good	0.25 \| good
2025-08-01T05:00:00.000Z	66 \| moderate	17.182 \| fine	76.214 \| fine	24.118 \| good	0.707 \| good	4.638 \| good	0.244 \| good
2025-08-01T06:00:00.000Z	64 \| moderate	16.295 \| fine	72.423 \| fine	23.738 \| good	0.694 \| good	4.116 \| good	0.237 \| good
2025-08-01T07:00:00.000Z	62 \| moderate	15.076 \| fine	67.911 \| fine	24.721 \| good	0.661 \| good	3.632 \| good	0.231 \| good
2025-08-01T08:00:00.000Z	58 \| moderate	13.315 \| fine	60.14 \| fine	24.72 \| good	0.628 \| good	3.149 \| good	0.224 \| good
2025-08-01T09:00:00.000Z	49 \| good	8.857 \| good	39.005 \| good	24.442 \| good	0.594 \| good	2.665 \| good	0.218 \| good
2025-08-01T10:00:00.000Z	49 \| good	9.223 \| good	41.107 \| good	22.388 \| good	0.586 \| good	3.281 \| good	0.217 \| good
2025-08-01T11:00:00.000Z	44 \| good	7.802 \| good	34.115 \| good	20.315 \| good	0.578 \| good	3.898 \| good	0.217 \| good
2025-08-01T12:00:00.000Z	44 \| good	7.597 \| good	33.417 \| good	18.385 \| good	0.57 \| good	4.515 \| good	0.217 \| good
2025-08-01T13:00:00.000Z	49 \| good	8.611 \| good	38.029 \| good	18.329 \| good	0.561 \| good	3.998 \| good	0.206 \| good
2025-08-01T14:00:00.000Z	44 \| good	8.476 \| good	37.129 \| good	19.321 \| good	0.551 \| good	3.482 \| good	0.195 \| good
2025-08-01T15:00:00.000Z	49 \| good	9.247 \| good	41.383 \| good	19.368 \| good	0.542 \| good	2.966 \| good	0.185 \| good
2025-08-01T16:00:00.000Z	49 \| good	8.895 \| good	39.662 \| good	22.573 \| good	0.529 \| good	2.544 \| good	0.182 \| good
2025-08-01T17:00:00.000Z	38 \| good	6.527 \| good	29.078 \| good	26.99 \| good	0.517 \| good	2.122 \| good	0.18 \| good
2025-08-01T18:00:00.000Z	33 \| good	5.683 \| good	24.566 \| good	27.279 \| good	0.505 \| good	1.7 \| good	0.177 \| good
2025-08-01T19:00:00.000Z	33 \| good	6.048 \| good	26.884 \| good	27.009 \| good	0.535 \| good	1.815 \| good	0.176 \| good
2025-08-01T20:00:00.000Z	33 \| good	6.37 \| good	28.519 \| good	27.981 \| good	0.565 \| good	1.93 \| good	0.175 \| good
2025-08-01T21:00:00.000Z	33 \| good	6.018 \| good	26.313 \| good	27.316 \| good	0.595 \| good	2.045 \| good	0.174 \| good
2025-08-01T22:00:00.000Z	33 \| good	6.39 \| good	28.238 \| good	26.118 \| good	0.691 \| good	4.052 \| good	0.186 \| good
2025-08-01T23:00:00.000Z	33 \| good	6.438 \| good	28.532 \| good	23.868 \| good	0.787 \| good	6.059 \| good	0.198 \| good
2025-08-02T00:00:00.000Z	44 \| good	7.788 \| good	33.997 \| good	23.281 \| good	0.883 \| good	8.066 \| good	0.209 \| good
2025-08-02T01:00:00.000Z	44 \| good	8.402 \| good	36.604 \| good	19.802 \| good	0.994 \| good	9.601 \| good	0.221 \| good
2025-08-02T02:00:00.000Z	49 \| good	8.894 \| good	39.662 \| good	18.986 \| good	1.106 \| good	11.137 \| good	0.232 \| good
2025-08-02T03:00:00.000Z	52 \| moderate	10.029 \| good	44.246 \| good	19.351 \| good	1.217 \| good	12.673 \| good	0.244 \| good
2025-08-02T04:00:00.000Z	52 \| moderate	10.143 \| good	44.784 \| good	21.378 \| good	1.201 \| good	11.2 \| good	0.233 \| good
2025-08-02T05:00:00.000Z	54 \| moderate	11.232 \| good	49.58 \| good	22.38 \| good	1.185 \| good	9.728 \| good	0.222 \| good
2025-08-02T06:00:00.000Z	54 \| moderate	10.599 \| good	47.106 \| good	20.613 \| good	1.169 \| good	8.255 \| good	0.212 \| good
2025-08-02T07:00:00.000Z	52 \| moderate	9.701 \| good	43.117 \| good	20.355 \| good	1.08 \| good	7.221 \| good	0.205 \| good
2025-08-02T08:00:00.000Z	49 \| good	8.756 \| good	38.687 \| good	18.203 \| good	0.991 \| good	6.188 \| good	0.199 \| good
2025-08-02T09:00:00.000Z	38 \| good	6.559 \| good	29.516 \| good	15.986 \| good	0.902 \| good	5.155 \| good	0.193 \| good
2025-08-02T10:00:00.000Z	38 \| good	7.242 \| good	32.044 \| good	15.626 \| good	0.869 \| good	5.004 \| good	0.197 \| good
2025-08-02T11:00:00.000Z	52 \| moderate	9.541 \| good	42.375 \| good	16.829 \| good	0.836 \| good	4.853 \| good	0.202 \| good
2025-08-02T12:00:00.000Z	54 \| moderate	10.517 \| good	46.595 \| good	21.686 \| good	0.803 \| good	4.703 \| good	0.206 \| good
2025-08-02T13:00:00.000Z	52 \| moderate	10.03 \| good	44.577 \| good	26.63 \| good	0.782 \| good	3.886 \| good	0.197 \| good
2025-08-02T14:00:00.000Z	44 \| good	8.069 \| good	35.318 \| good	32.586 \| good	0.762 \| good	3.069 \| good	0.187 \| good
2025-08-02T15:00:00.000Z	44 \| good	7.949 \| good	34.666 \| good	36.241 \| good	0.742 \| good	2.252 \| good	0.178 \| good

Somerville

Empower business decisions with accurate air quality data

Real-time air quality map: Monitor AQI near Somerville, Massachusetts

0.31ppm

How accurate is Massachusetts, USA air quality data?

The air quality data for Massachusetts, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.

Source: Ambee Data Sources

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Frequently asked questions

How frequently does the air quality data for Somerville, Massachusetts get updated?

Air quality updates for Somerville, Massachusetts are available every hour.

What time in the past 24 hours saw the poorest air quality in Somerville, Massachusetts?

Somerville, Massachusetts experienced its worst air quality at 07:00:00, 2025-07-31.

When was air quality in Somerville, Massachusetts the best over the past 24 hours?

The best air quality in Somerville, Massachusetts was observed at 11:00:00 on 2025-07-31.

What is the air quality in Somerville, Massachusetts right now?

The air quality in Somerville, Massachusetts right now is Moderate, with an AQI of 66.

What pollutant is most frequently found in Somerville, Massachusetts?

In Somerville, Massachusetts, PM2.5 is the most frequently found pollutant.

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

When air quality in Somerville, Massachusetts is compromised, staying indoors and wearing a mask can reduce health risks.

What is the PM_2.5 concentration in Somerville, Massachusetts right now?

Somerville, Massachusetts currently has a PM_2.5 concentration of 17.174 μg/m³.

What is the current level of PM₁₀ in Somerville, Massachusetts?

Somerville, Massachusetts currently has a PM₁₀ concentration of 68.866 μg/m³.

What is the current level of carbon monoxide (CO) in Somerville, Massachusetts?

The current carbon monoxide (CO) level in Somerville, Massachusetts is 0.304 ppm.

What is the current level of sulfur dioxide (SO₂) in Somerville, Massachusetts?

The current sulfur dioxide (SO₂) concentration in Somerville, Massachusetts is 0.402 ppb.

What is the current level of ozone (O₃) in Somerville, Massachusetts?

Somerville, Massachusetts currently has an ozone (O₃) concentration of 24.728 ppm.

What is the current level of nitrogen dioxide (NO₂) in Somerville, Massachusetts?

The current level of nitrogen dioxide (NO₂) in Somerville, Massachusetts is 8.224 ppb.

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