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

Somerville, Massachusetts currently has a PM10 concentration of 38.692 μg/m3.

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

The current sulfur dioxide (SO2) concentration in Somerville, Massachusetts is 1.156 ppb.

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

Somerville, Massachusetts currently has an ozone (O3) concentration of 33.587 ppm.

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

The current level of nitrogen dioxide (NO2) in Somerville, Massachusetts is 7.409 ppb.

Current air quality index in Somerville, Massachusetts today

Q: What is the PM2.5 concentration in Somerville, Massachusetts right now?

Somerville, Massachusetts currently has a PM2.5 concentration of 9.335 μg/m3.

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)

Good

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)

9.34 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

38.69 μg/m³

155

255

425

605+

Ozone (O₃)

33.59 ppb

201

201+

Sulfur Dioxide (SO₂)

1.16 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

7.41 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.15 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
2026-06-27T20:00:00.000Z	33 \| good	6.039 \| good	25.124 \| good	35.697 \| good	0.828 \| good	4.433 \| good	0.161 \| good
2026-06-27T21:00:00.000Z	33 \| good	5.903 \| good	23.856 \| good	34.178 \| good	0.897 \| good	4.405 \| good	0.161 \| good
2026-06-27T22:00:00.000Z	33 \| good	5.732 \| good	23.542 \| good	34.25 \| good	0.901 \| good	3.352 \| good	0.161 \| good
2026-06-27T23:00:00.000Z	33 \| good	5.622 \| good	22.852 \| good	33.486 \| good	0.897 \| good	6.922 \| good	0.156 \| good
2026-06-28T00:00:00.000Z	34 \| good	5.195 \| good	21.312 \| good	36.504 \| good	0.897 \| good	8.177 \| good	0.161 \| good
2026-06-28T01:00:00.000Z	31 \| good	4.957 \| good	20.023 \| good	32.839 \| good	0.896 \| good	16.632 \| good	0.162 \| good
2026-06-28T02:00:00.000Z	27 \| good	4.88 \| good	19.813 \| good	27.473 \| good	0.883 \| good	17.726 \| good	0.162 \| good
2026-06-28T03:00:00.000Z	52 \| moderate	9.555 \| good	42.37 \| good	28.631 \| good	0.352 \| good	8.476 \| good	0.192 \| good
2026-06-28T04:00:00.000Z	27 \| good	5.013 \| good	20.518 \| good	26.709 \| good	0.949 \| good	15.083 \| good	0.251 \| good
2026-06-28T05:00:00.000Z	27 \| good	5.07 \| good	20.499 \| good	19.287 \| good	0.955 \| good	20.642 \| good	0.251 \| good
2026-06-28T06:00:00.000Z	27 \| good	5.066 \| good	20.458 \| good	25.068 \| good	0.957 \| good	12.888 \| good	0.162 \| good
2026-06-28T07:00:00.000Z	27 \| good	5.066 \| good	20.458 \| good	17.58 \| good	0.974 \| good	13.022 \| good	0.162 \| good
2026-06-28T08:00:00.000Z	27 \| good	4.918 \| good	19.854 \| good	19.372 \| good	0.875 \| good	8.942 \| good	0.162 \| good
2026-06-28T09:00:00.000Z	27 \| good	4.793 \| good	19.584 \| good	24.191 \| good	0.883 \| good	6.197 \| good	0.162 \| good
2026-06-28T10:00:00.000Z	27 \| good	4.812 \| good	19.398 \| good	21.414 \| good	0.879 \| good	6.054 \| good	0.166 \| good
2026-06-28T11:00:00.000Z	27 \| good	5.235 \| good	21.574 \| good	17.576 \| good	0.871 \| good	8.393 \| good	0.217 \| good
2026-06-28T12:00:00.000Z	38 \| good	6.862 \| good	28.761 \| good	17.375 \| good	0.93 \| good	11.871 \| good	0.213 \| good
2026-06-28T13:00:00.000Z	38 \| good	6.862 \| good	28.761 \| good	17.141 \| good	0.883 \| good	12.025 \| good	0.213 \| good
2026-06-28T14:00:00.000Z	49 \| good	8.854 \| good	35.92 \| good	19.354 \| good	0.944 \| good	10.431 \| good	0.162 \| good
2026-06-28T15:00:00.000Z	44 \| good	8.183 \| good	33.051 \| good	27.13 \| good	0.646 \| good	10.547 \| good	0.162 \| good
2026-06-28T16:00:00.000Z	44 \| good	8.084 \| good	33.362 \| good	28.282 \| good	0.705 \| good	8.901 \| good	0.2 \| good
2026-06-28T17:00:00.000Z	44 \| good	8.1 \| good	33.154 \| good	35.689 \| good	1.02 \| good	6.409 \| good	0.161 \| good
2026-06-28T18:00:00.000Z	44 \| good	7.846 \| good	31.884 \| good	33.836 \| good	1.021 \| good	5.636 \| good	0.156 \| good
2026-06-28T19:00:00.000Z	44 \| good	7.622 \| good	31.094 \| good	39.099 \| good	0.97 \| good	5.419 \| good	0.194 \| good
2026-06-28T20:00:00.000Z	38 \| good	7.483 \| good	31.055 \| good	39.021 \| good	0.961 \| good	5.316 \| good	0.156 \| good
2026-06-28T21:00:00.000Z	44 \| good	7.565 \| good	31.161 \| good	37.637 \| good	0.888 \| good	4.855 \| good	0.203 \| good
2026-06-28T22:00:00.000Z	44 \| good	7.597 \| good	31.58 \| good	38.426 \| good	0.873 \| good	6.37 \| good	0.203 \| good
2026-06-28T23:00:00.000Z	38 \| good	7.074 \| good	29.915 \| good	36.444 \| good	0.936 \| good	8.757 \| good	0.203 \| good
2026-06-29T00:00:00.000Z	38 \| good	6.838 \| good	29.185 \| good	35.415 \| good	0.87 \| good	8.95 \| good	0.265 \| good
2026-06-29T01:00:00.000Z	38 \| good	6.68 \| good	28.29 \| good	35.331 \| good	0.925 \| good	13.818 \| good	0.292 \| good
2026-06-29T02:00:00.000Z	38 \| good	6.68 \| good	28.29 \| good	32.719 \| good	0.946 \| good	13.809 \| good	0.298 \| good
2026-06-29T03:00:00.000Z	54 \| moderate	11.144 \| good	49.069 \| good	27.419 \| good	0.408 \| good	9.421 \| good	0.215 \| good
2026-06-29T04:00:00.000Z	38 \| good	6.742 \| good	28.165 \| good	31.652 \| good	0.945 \| good	8.603 \| good	0.264 \| good
2026-06-29T05:00:00.000Z	44 \| good	7.597 \| good	30.954 \| good	28.895 \| good	0.426 \| good	6.53 \| good	0.26 \| good
2026-06-29T06:00:00.000Z	44 \| good	7.714 \| good	31.1 \| good	29.761 \| good	0.923 \| good	5.886 \| good	0.26 \| good
2026-06-29T07:00:00.000Z	44 \| good	7.714 \| good	31.1 \| good	31.091 \| good	0.923 \| good	5.635 \| good	0.26 \| good
2026-06-29T08:00:00.000Z	44 \| good	7.77 \| good	31.369 \| good	24.817 \| good	0.868 \| good	5.927 \| good	0.213 \| good
2026-06-29T09:00:00.000Z	44 \| good	7.776 \| good	31.224 \| good	24.083 \| good	0.943 \| good	7.029 \| good	0.264 \| good
2026-06-29T10:00:00.000Z	44 \| good	7.716 \| good	31.02 \| good	22.021 \| good	0.878 \| good	9.007 \| good	0.292 \| good
2026-06-29T11:00:00.000Z	44 \| good	8.075 \| good	32.584 \| good	18.886 \| good	0.948 \| good	12.155 \| good	0.292 \| good
2026-06-29T12:00:00.000Z	49 \| good	8.557 \| good	34.629 \| good	16.999 \| good	1.015 \| good	12.502 \| good	0.393 \| good
2026-06-29T13:00:00.000Z	49 \| good	8.557 \| good	34.629 \| good	14.918 \| good	1.01 \| good	12.192 \| good	0.384 \| good
2026-06-29T14:00:00.000Z	52 \| moderate	9.859 \| good	40.536 \| good	18.966 \| good	0.901 \| good	9.519 \| good	0.26 \| good
2026-06-29T15:00:00.000Z	52 \| moderate	10.138 \| good	42.036 \| good	22.816 \| good	0.956 \| good	7.145 \| good	0.26 \| good
2026-06-29T16:00:00.000Z	52 \| moderate	9.612 \| good	39.978 \| good	29.35 \| good	0.985 \| good	6.408 \| good	0.171 \| good
2026-06-29T17:00:00.000Z	49 \| good	9.091 \| good	37.98 \| good	25.73 \| good	0.978 \| good	4.304 \| good	0.151 \| good
2026-06-29T18:00:00.000Z	49 \| good	8.55 \| good	35.356 \| good	33.745 \| good	1.084 \| good	5.024 \| good	0.156 \| good
2026-06-29T19:00:00.000Z	44 \| good	7.892 \| good	32.84 \| good	37.498 \| good	0.987 \| good	5.182 \| good	0.16 \| good
2026-06-29T19:00:00.000Z	49 \| good	9.335 \| good	38.692 \| good	33.587 \| good	1.156 \| good	7.409 \| good	0.148 \| good
2026-06-29T20:00:00.000Z	31 \| good	2.82 \| good	11.666 \| good	32.529 \| good	0.284 \| good	1.423 \| good	0.151 \| good
2026-06-29T21:00:00.000Z	28 \| good	2.916 \| good	12.295 \| good	30.075 \| good	0.285 \| good	1.75 \| good	0.15 \| good
2026-06-29T22:00:00.000Z	28 \| good	2.53 \| good	10.206 \| good	29.766 \| good	0.283 \| good	2.414 \| good	0.152 \| good
2026-06-29T23:00:00.000Z	22 \| good	2.187 \| good	9.152 \| good	24.275 \| good	0.284 \| good	3.555 \| good	0.157 \| good
2026-06-30T00:00:00.000Z	22 \| good	3.836 \| good	16.494 \| good	20.588 \| good	0.286 \| good	5.576 \| good	0.166 \| good
2026-06-30T01:00:00.000Z	27 \| good	4.661 \| good	20.366 \| good	17.363 \| good	0.294 \| good	7.016 \| good	0.172 \| good
2026-06-30T02:00:00.000Z	27 \| good	4.837 \| good	21.275 \| good	17.123 \| good	0.302 \| good	7.655 \| good	0.176 \| good
2026-06-30T03:00:00.000Z	27 \| good	4.598 \| good	19.728 \| good	15.036 \| good	0.309 \| good	7.712 \| good	0.181 \| good
2026-06-30T04:00:00.000Z	33 \| good	5.876 \| good	25.395 \| good	16.67 \| good	0.307 \| good	6.696 \| good	0.187 \| good
2026-06-30T05:00:00.000Z	49 \| good	8.72 \| good	38.364 \| good	23.687 \| good	0.303 \| good	5.949 \| good	0.195 \| good
2026-06-30T06:00:00.000Z	49 \| good	9.465 \| good	42.509 \| good	26.085 \| good	0.301 \| good	5.079 \| good	0.199 \| good
2026-06-30T07:00:00.000Z	49 \| good	9.297 \| good	41.69 \| good	23.257 \| good	0.292 \| good	4.423 \| good	0.201 \| good
2026-06-30T08:00:00.000Z	49 \| good	9.419 \| good	42.114 \| good	23.267 \| good	0.284 \| good	4.169 \| good	0.202 \| good
2026-06-30T09:00:00.000Z	52 \| moderate	9.559 \| good	42.867 \| good	21.565 \| good	0.285 \| good	4.506 \| good	0.202 \| good
2026-06-30T10:00:00.000Z	52 \| moderate	10.48 \| good	46.223 \| good	22.607 \| good	0.298 \| good	4.74 \| good	0.201 \| good
2026-06-30T11:00:00.000Z	54 \| moderate	11.244 \| good	49.486 \| good	29.325 \| good	0.336 \| good	4.872 \| good	0.198 \| good
2026-06-30T12:00:00.000Z	58 \| moderate	12.571 \| fine	57.19 \| fine	37.234 \| good	0.405 \| good	4.914 \| good	0.197 \| good
2026-06-30T13:00:00.000Z	58 \| moderate	12.542 \| fine	57.018 \| fine	43.699 \| good	0.49 \| good	4.308 \| good	0.196 \| good
2026-06-30T14:00:00.000Z	54 \| moderate	11.324 \| good	50.039 \| good	49.116 \| good	0.528 \| good	3.226 \| good	0.194 \| good
2026-06-30T15:00:00.000Z	52 \| moderate	10.094 \| good	44.814 \| good	48.766 \| good	0.48 \| good	2.212 \| good	0.189 \| good
2026-06-30T16:00:00.000Z	49 \| good	8.834 \| good	38.94 \| good	49.829 \| good	0.352 \| good	1.533 \| good	0.174 \| good
2026-06-30T17:00:00.000Z	49 \| good	8.888 \| good	38.94 \| good	49.781 \| good	0.301 \| good	1.284 \| good	0.167 \| good
2026-06-30T18:00:00.000Z	52 \| moderate	9.546 \| good	42.76 \| good	50.45 \| good	0.278 \| good	1.175 \| good	0.165 \| good
2026-06-30T19:00:00.000Z	52 \| moderate	9.519 \| good	42.662 \| good	51.208 \| good	0.279 \| good	1.193 \| good	0.166 \| good
2026-06-30T20:00:00.000Z	54 \| moderate	10.546 \| good	46.568 \| good	44.169 \| good	0.298 \| good	1.307 \| good	0.168 \| good
2026-06-30T21:00:00.000Z	54 \| moderate	11.092 \| good	49.024 \| good	49.076 \| good	0.34 \| good	1.578 \| good	0.172 \| good
2026-06-30T22:00:00.000Z	49 \| good	9.211 \| good	41.295 \| good	51.567 \| good	0.397 \| good	2.012 \| good	0.175 \| good
2026-06-30T23:00:00.000Z	38 \| good	6.406 \| good	28.505 \| good	40.531 \| good	0.432 \| good	2.796 \| good	0.177 \| good
2026-07-01T00:00:00.000Z	34 \| good	6.013 \| good	26.973 \| good	36.908 \| good	0.404 \| good	3.319 \| good	0.168 \| good
2026-07-01T01:00:00.000Z	32 \| good	5.236 \| good	22.942 \| good	35.438 \| good	0.352 \| good	3.704 \| good	0.16 \| good
2026-07-01T02:00:00.000Z	31 \| good	4.202 \| good	18.787 \| good	33.3 \| good	0.3 \| good	4.136 \| good	0.154 \| good
2026-07-01T03:00:00.000Z	27 \| good	4.475 \| good	19.141 \| good	28.988 \| good	0.258 \| good	4.228 \| good	0.149 \| good
2026-07-01T04:00:00.000Z	27 \| good	5.026 \| good	21.949 \| good	28.166 \| good	0.234 \| good	4.001 \| good	0.144 \| good
2026-07-01T05:00:00.000Z	33 \| good	5.907 \| good	25.657 \| good	28.563 \| good	0.228 \| good	3.569 \| good	0.139 \| good
2026-07-01T06:00:00.000Z	33 \| good	6.492 \| good	29.004 \| good	30.014 \| good	0.249 \| good	3.271 \| good	0.136 \| good
2026-07-01T07:00:00.000Z	38 \| good	6.815 \| good	30.373 \| good	27.701 \| good	0.289 \| good	3.373 \| good	0.137 \| good
2026-07-01T08:00:00.000Z	44 \| good	7.579 \| good	33.333 \| good	26.519 \| good	0.34 \| good	3.699 \| good	0.139 \| good
2026-07-01T09:00:00.000Z	49 \| good	8.687 \| good	37.837 \| good	25.386 \| good	0.404 \| good	4.017 \| good	0.142 \| good
2026-07-01T10:00:00.000Z	49 \| good	9.424 \| good	41.696 \| good	23.953 \| good	0.456 \| good	4.261 \| good	0.145 \| good
2026-07-01T11:00:00.000Z	54 \| moderate	10.905 \| good	48.285 \| good	25.699 \| good	0.48 \| good	4.236 \| good	0.15 \| good
2026-07-01T12:00:00.000Z	58 \| moderate	13.2 \| fine	59.412 \| fine	34.066 \| good	0.493 \| good	3.758 \| good	0.157 \| good
2026-07-01T13:00:00.000Z	62 \| moderate	15.013 \| fine	66.996 \| fine	41.123 \| good	0.494 \| good	3.004 \| good	0.165 \| good
2026-07-01T14:00:00.000Z	64 \| moderate	16.202 \| fine	72.403 \| fine	50.081 \| good	0.496 \| good	2.229 \| good	0.173 \| good
2026-07-01T15:00:00.000Z	69 \| moderate	18.672 \| fine	82.52 \| fine	52.295 \| good	0.505 \| good	1.742 \| good	0.178 \| good
2026-07-01T16:00:00.000Z	71 \| moderate	19.836 \| fine	87.064 \| fine	53.447 \| good	0.513 \| good	1.431 \| good	0.179 \| good
2026-07-01T17:00:00.000Z	71 \| moderate	19.939 \| fine	87.247 \| fine	51.64 \| good	0.493 \| good	1.305 \| good	0.179 \| good
2026-07-01T18:00:00.000Z	71 \| moderate	20.344 \| fine	89.196 \| fine	47.809 \| good	0.467 \| good	1.304 \| good	0.179 \| good
2026-07-01T19:00:00.000Z	71 \| moderate	19.508 \| fine	85.543 \| fine	47.112 \| good	0.447 \| good	1.326 \| good	0.179 \| good

Somerville

Empower business decisions with accurate air quality data

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

0.15ppm

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 03:00:00, 2026-06-29.

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

The best air quality in Somerville, Massachusetts was observed at 04:00:00 on 2026-06-29.

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

The air quality in Somerville, Massachusetts right now is Good, with an AQI of 49.

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 9.335 μg/m³.

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

Somerville, Massachusetts currently has a PM₁₀ concentration of 38.692 μg/m³.

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

The current carbon monoxide (CO) level in Somerville, Massachusetts is 0.148 ppm.

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

The current sulfur dioxide (SO₂) concentration in Somerville, Massachusetts is 1.156 ppb.

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

Somerville, Massachusetts currently has an ozone (O₃) concentration of 33.587 ppm.

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

The current level of nitrogen dioxide (NO₂) in Somerville, Massachusetts is 7.409 ppb.

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