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

The current PM10 concentration at Cambridge, Massachusetts is 50.428 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Cambridge, Massachusetts is 0.525 ppb.

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

The current ozone (O3) concentration at Cambridge, Massachusetts is 17.335 ppm.

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

The current nitrogen dioxide (NO2) concentration at Cambridge, Massachusetts is 21.098 ppb.

Cambridge, Massachusetts live air quality index now

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

Stay updated with real-time air quality in Cambridge, 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

Cambridge, Massachusetts

Last updated: ... (Local time)

Major air pollutants in Cambridge, Massachusetts

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

11.98 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

50.43 μg/m³

155

255

425

605+

Ozone (O₃)

17.34 ppb

201

201+

Sulfur Dioxide (SO₂)

0.53 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

21.10 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.70 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

High

Cambridge, Massachusetts

Get Live Pollen Counts

Cambridge, Massachusetts

Scroll To Air Quality Map

Track live Cambridge, Massachusetts air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-09-13T05:00:00.000Z	33 \| good	6.044 \| good	25.714 \| good	16.787 \| good	0.423 \| good	10.744 \| good	0.455 \| good
2025-09-13T06:00:00.000Z	33 \| good	6.066 \| good	25.94 \| good	12.117 \| good	0.473 \| good	11.514 \| good	0.404 \| good
2025-09-13T07:00:00.000Z	33 \| good	6.091 \| good	25.957 \| good	8.455 \| good	0.4 \| good	9.483 \| good	0.371 \| good
2025-09-13T08:00:00.000Z	33 \| good	6.026 \| good	25.192 \| good	5.499 \| good	0.423 \| good	7.651 \| good	0.327 \| good
2025-09-13T09:00:00.000Z	33 \| good	6.074 \| good	25.488 \| good	6.882 \| good	0.423 \| good	7.861 \| good	0.282 \| good
2025-09-13T10:00:00.000Z	33 \| good	6.183 \| good	26.166 \| good	7.933 \| good	0.423 \| good	9.82 \| good	0.293 \| good
2025-09-13T11:00:00.000Z	33 \| good	6.203 \| good	25.791 \| good	7.954 \| good	0.401 \| good	9.244 \| good	0.333 \| good
2025-09-13T12:00:00.000Z	33 \| good	6.344 \| good	26.855 \| good	7.342 \| good	0.573 \| good	12.503 \| good	0.426 \| good
2025-09-13T13:00:00.000Z	33 \| good	6.372 \| good	26.908 \| good	8.147 \| good	0.671 \| good	11.848 \| good	0.366 \| good
2025-09-13T14:00:00.000Z	33 \| good	6.418 \| good	27.035 \| good	14.933 \| good	0.574 \| good	10.741 \| good	0.234 \| good
2025-09-13T15:00:00.000Z	33 \| good	6.036 \| good	25.306 \| good	19.412 \| good	0.498 \| good	5.385 \| good	0.193 \| good
2025-09-13T16:00:00.000Z	33 \| good	6.016 \| good	25.363 \| good	20.817 \| good	0.422 \| good	4.328 \| good	0.193 \| good
2025-09-13T17:00:00.000Z	33 \| good	6.245 \| good	26.864 \| good	28.084 \| good	0.719 \| good	3.984 \| good	0.189 \| good
2025-09-13T18:00:00.000Z	38 \| good	6.66 \| good	28.394 \| good	31.399 \| good	0.643 \| good	2.991 \| good	0.189 \| good
2025-09-13T19:00:00.000Z	38 \| good	7.228 \| good	30.659 \| good	33.26 \| good	0.642 \| good	3.193 \| good	0.189 \| good
2025-09-13T20:00:00.000Z	38 \| good	7.46 \| good	31.301 \| good	33.481 \| good	0.545 \| good	6.403 \| good	0.23 \| good
2025-09-13T21:00:00.000Z	44 \| good	7.615 \| good	32.359 \| good	32.837 \| good	0.572 \| good	15.739 \| good	0.277 \| good
2025-09-13T22:00:00.000Z	44 \| good	7.548 \| good	32.119 \| good	34.516 \| good	0.571 \| good	10.617 \| good	0.277 \| good
2025-09-13T23:00:00.000Z	38 \| good	7.231 \| good	30.65 \| good	33.382 \| good	0.568 \| good	4.932 \| good	0.193 \| good
2025-09-14T00:00:00.000Z	38 \| good	6.903 \| good	28.828 \| good	32.76 \| good	0.495 \| good	5.027 \| good	0.238 \| good
2025-09-14T01:00:00.000Z	38 \| good	6.656 \| good	27.851 \| good	29.974 \| good	0.497 \| good	5.281 \| good	0.241 \| good
2025-09-14T02:00:00.000Z	38 \| good	6.666 \| good	28.224 \| good	33.203 \| good	0.498 \| good	5.687 \| good	0.245 \| good
2025-09-14T03:00:00.000Z	23 \| good	3.204 \| good	14 \| good	25.117 \| good	0.882 \| good	7.618 \| good	0.177 \| good
2025-09-14T04:00:00.000Z	33 \| good	5.893 \| good	24.48 \| good	27.222 \| good	0.475 \| good	4.443 \| good	0.329 \| good
2025-09-14T05:00:00.000Z	33 \| good	5.578 \| good	23.069 \| good	24.475 \| good	0.363 \| good	3.071 \| good	0.238 \| good
2025-09-14T06:00:00.000Z	27 \| good	5.466 \| good	21.954 \| good	22.994 \| good	0.418 \| good	2.838 \| good	0.234 \| good
2025-09-14T07:00:00.000Z	27 \| good	5.31 \| good	21.218 \| good	23.647 \| good	0.423 \| good	2.841 \| good	0.275 \| good
2025-09-14T08:00:00.000Z	27 \| good	5.324 \| good	21.324 \| good	20.182 \| good	0.498 \| good	6.316 \| good	0.275 \| good
2025-09-14T09:00:00.000Z	27 \| good	5.419 \| good	22.12 \| good	20.453 \| good	0.423 \| good	1.42 \| good	0.234 \| good
2025-09-14T10:00:00.000Z	27 \| good	5.425 \| good	22.152 \| good	18.09 \| good	0.423 \| good	2.794 \| good	0.23 \| good
2025-09-14T11:00:00.000Z	27 \| good	5.457 \| good	22.365 \| good	18.123 \| good	0.424 \| good	3.477 \| good	0.234 \| good
2025-09-14T12:00:00.000Z	33 \| good	5.571 \| good	22.418 \| good	19.199 \| good	0.423 \| good	3.297 \| good	0.278 \| good
2025-09-14T13:00:00.000Z	33 \| good	5.616 \| good	22.594 \| good	11.406 \| good	0.423 \| good	4.995 \| good	0.377 \| good
2025-09-14T14:00:00.000Z	33 \| good	5.88 \| good	24.94 \| good	15.137 \| good	0.422 \| good	4.539 \| good	0.282 \| good
2025-09-14T15:00:00.000Z	33 \| good	6.337 \| good	26.264 \| good	21.168 \| good	0.423 \| good	3.615 \| good	0.279 \| good
2025-09-14T16:00:00.000Z	38 \| good	6.914 \| good	28.94 \| good	25.963 \| good	0.495 \| good	1.836 \| good	0.241 \| good
2025-09-14T17:00:00.000Z	38 \| good	7.369 \| good	30.67 \| good	33.111 \| good	0.496 \| good	1.556 \| good	0.204 \| good
2025-09-14T18:00:00.000Z	44 \| good	8.145 \| good	33.589 \| good	37.373 \| good	0.497 \| good	2.105 \| good	0.238 \| good
2025-09-14T19:00:00.000Z	49 \| good	8.975 \| good	37.872 \| good	39.49 \| good	0.522 \| good	6.009 \| good	0.234 \| good
2025-09-14T20:00:00.000Z	52 \| moderate	9.553 \| good	40.052 \| good	39.684 \| good	0.573 \| good	11.98 \| good	0.238 \| good
2025-09-14T21:00:00.000Z	52 \| moderate	9.741 \| good	40.673 \| good	40.56 \| good	0.572 \| good	8.526 \| good	0.234 \| good
2025-09-14T22:00:00.000Z	52 \| moderate	9.719 \| good	40.398 \| good	37.83 \| good	0.572 \| good	9.737 \| good	0.234 \| good
2025-09-14T23:00:00.000Z	52 \| moderate	9.702 \| good	40.398 \| good	38.907 \| good	0.696 \| good	12.675 \| good	0.201 \| good
2025-09-15T00:00:00.000Z	52 \| moderate	9.783 \| good	41.102 \| good	28.492 \| good	0.571 \| good	13.957 \| good	0.293 \| good
2025-09-15T01:00:00.000Z	52 \| moderate	10.145 \| good	42.45 \| good	30.077 \| good	0.571 \| good	13.988 \| good	0.347 \| good
2025-09-15T02:00:00.000Z	54 \| moderate	11.037 \| good	47.026 \| good	23.611 \| good	0.501 \| good	17.759 \| good	0.48 \| good
2025-09-15T03:00:00.000Z	56 \| moderate	11.976 \| good	50.428 \| good	17.335 \| good	0.525 \| good	21.098 \| good	0.7 \| good
2025-09-15T04:00:00.000Z	56 \| moderate	11.785 \| good	49.583 \| good	17.361 \| good	0.549 \| good	22.761 \| good	0.785 \| good
2025-09-15T04:00:00.000Z	56 \| moderate	11.976 \| good	50.428 \| good	17.335 \| good	0.525 \| good	21.098 \| good	0.7 \| good
2025-09-15T05:00:00.000Z	75 \| moderate	21.92 \| fine	96.98 \| fine	14.644 \| good	1.583 \| good	24.774 \| good	0.388 \| good
2025-09-15T06:00:00.000Z	75 \| moderate	21.838 \| fine	94.997 \| fine	11.9 \| good	1.544 \| good	24.725 \| good	0.391 \| good
2025-09-15T07:00:00.000Z	75 \| moderate	21.918 \| fine	96.983 \| fine	10.033 \| good	1.367 \| good	23.169 \| good	0.381 \| good
2025-09-15T08:00:00.000Z	75 \| moderate	22.413 \| fine	98.983 \| fine	9.447 \| good	1.191 \| good	21.613 \| good	0.37 \| good
2025-09-15T09:00:00.000Z	84 \| moderate	26.848 \| fine	116.986 \| fine	11.091 \| good	1.014 \| good	20.057 \| good	0.36 \| good
2025-09-15T10:00:00.000Z	86 \| moderate	28.289 \| fine	122.99 \| fine	9.11 \| good	1.083 \| good	17.903 \| good	0.355 \| good
2025-09-15T11:00:00.000Z	90 \| moderate	30.47 \| fine	130.999 \| fine	9.868 \| good	1.151 \| good	15.75 \| good	0.351 \| good
2025-09-15T12:00:00.000Z	90 \| moderate	29.85 \| fine	128.991 \| fine	16.937 \| good	1.22 \| good	13.596 \| good	0.346 \| good
2025-09-15T13:00:00.000Z	84 \| moderate	27.039 \| fine	116.996 \| fine	26.723 \| good	1.194 \| good	10.553 \| good	0.304 \| good
2025-09-15T14:00:00.000Z	81 \| moderate	24.639 \| fine	107.001 \| fine	31.1 \| good	1.169 \| good	7.511 \| good	0.263 \| good
2025-09-15T15:00:00.000Z	69 \| moderate	18.83 \| fine	82.997 \| fine	34.322 \| good	1.143 \| good	4.468 \| good	0.221 \| good
2025-09-15T16:00:00.000Z	60 \| moderate	14.253 \| fine	63.007 \| fine	36.339 \| good	1.04 \| good	3.807 \| good	0.21 \| good
2025-09-15T17:00:00.000Z	58 \| moderate	13.241 \| fine	59.001 \| fine	38.289 \| good	0.936 \| good	3.147 \| good	0.198 \| good
2025-09-15T18:00:00.000Z	56 \| moderate	12.225 \| fine	54.993 \| good	37.578 \| good	0.833 \| good	2.486 \| good	0.186 \| good
2025-09-15T19:00:00.000Z	54 \| moderate	10.859 \| good	47.997 \| good	38.597 \| good	0.826 \| good	2.938 \| good	0.185 \| good
2025-09-15T20:00:00.000Z	52 \| moderate	10.38 \| good	45.993 \| good	37.715 \| good	0.818 \| good	3.391 \| good	0.184 \| good
2025-09-15T21:00:00.000Z	52 \| moderate	10.06 \| good	44.991 \| good	37.363 \| good	0.811 \| good	3.843 \| good	0.183 \| good
2025-09-15T22:00:00.000Z	52 \| moderate	9.626 \| good	42.995 \| good	35.027 \| good	0.891 \| good	6.499 \| good	0.199 \| good
2025-09-15T23:00:00.000Z	56 \| moderate	11.699 \| good	51.994 \| good	28.678 \| good	0.971 \| good	9.154 \| good	0.215 \| good
2025-09-16T00:00:00.000Z	56 \| moderate	12.167 \| fine	54.987 \| good	23.441 \| good	1.051 \| good	11.81 \| good	0.231 \| good
2025-09-16T01:00:00.000Z	58 \| moderate	12.905 \| fine	58.987 \| fine	19.629 \| good	1.081 \| good	12.311 \| good	0.234 \| good
2025-09-16T02:00:00.000Z	56 \| moderate	12.019 \| good	53.994 \| good	19.445 \| good	1.11 \| good	12.813 \| good	0.237 \| good
2025-09-16T03:00:00.000Z	56 \| moderate	11.685 \| good	51.009 \| good	21.353 \| good	1.14 \| good	13.314 \| good	0.239 \| good
2025-09-16T04:00:00.000Z	56 \| moderate	11.807 \| good	52.007 \| good	21.276 \| good	1.177 \| good	13.834 \| good	0.246 \| good
2025-09-16T05:00:00.000Z	56 \| moderate	11.923 \| good	53.991 \| good	18.667 \| good	1.214 \| good	14.354 \| good	0.252 \| good
2025-09-16T06:00:00.000Z	56 \| moderate	11.641 \| good	51.005 \| good	15.632 \| good	1.25 \| good	14.873 \| good	0.259 \| good
2025-09-16T07:00:00.000Z	54 \| moderate	11.3 \| good	50.001 \| good	12.163 \| good	1.213 \| good	15.19 \| good	0.261 \| good
2025-09-16T08:00:00.000Z	58 \| moderate	12.568 \| fine	56.988 \| fine	9.437 \| good	1.175 \| good	15.506 \| good	0.264 \| good
2025-09-16T09:00:00.000Z	62 \| moderate	15.238 \| fine	68.981 \| fine	9.323 \| good	1.137 \| good	15.822 \| good	0.266 \| good
2025-09-16T10:00:00.000Z	66 \| moderate	16.791 \| fine	74.988 \| fine	4.821 \| good	1.184 \| good	16.18 \| good	0.295 \| good
2025-09-16T11:00:00.000Z	73 \| moderate	21.23 \| fine	92.988 \| fine	5.132 \| good	1.23 \| good	16.537 \| good	0.324 \| good
2025-09-16T12:00:00.000Z	71 \| moderate	20.397 \| fine	88.995 \| fine	10.803 \| good	1.277 \| good	16.895 \| good	0.353 \| good
2025-09-16T13:00:00.000Z	64 \| moderate	16.223 \| fine	72.984 \| fine	19.024 \| good	1.636 \| good	14.176 \| good	0.31 \| good
2025-09-16T14:00:00.000Z	62 \| moderate	15.129 \| fine	66.996 \| fine	27.565 \| good	1.996 \| good	11.457 \| good	0.267 \| good
2025-09-16T15:00:00.000Z	62 \| moderate	14.692 \| fine	64.996 \| fine	33.37 \| good	2.355 \| good	8.738 \| good	0.223 \| good
2025-09-16T16:00:00.000Z	62 \| moderate	14.681 \| fine	64.998 \| fine	35.798 \| good	1.927 \| good	7.128 \| good	0.211 \| good
2025-09-16T17:00:00.000Z	58 \| moderate	13.301 \| fine	60.978 \| fine	36.915 \| good	1.499 \| good	5.517 \| good	0.198 \| good
2025-09-16T18:00:00.000Z	54 \| moderate	10.984 \| good	48.001 \| good	35.967 \| good	1.07 \| good	3.907 \| good	0.186 \| good
2025-09-16T19:00:00.000Z	38 \| good	6.977 \| good	30.993 \| good	31.783 \| good	0.988 \| good	3.938 \| good	0.185 \| good
2025-09-16T20:00:00.000Z	24 \| good	4.166 \| good	17.996 \| good	26.187 \| good	0.905 \| good	3.969 \| good	0.184 \| good
2025-09-16T21:00:00.000Z	22 \| good	4.269 \| good	18.991 \| good	23.973 \| good	0.822 \| good	3.999 \| good	0.183 \| good
2025-09-16T22:00:00.000Z	19 \| good	3.491 \| good	14.999 \| good	19.82 \| good	0.85 \| good	6.433 \| good	0.198 \| good
2025-09-16T23:00:00.000Z	27 \| good	4.939 \| good	21 \| good	17.935 \| good	0.877 \| good	8.867 \| good	0.213 \| good
2025-09-17T00:00:00.000Z	44 \| good	8.183 \| good	8.659 \| good	29.834 \| good	0.901 \| good	11.26 \| good	0.228 \| good
2025-09-17T01:00:00.000Z	27 \| good	4.753 \| good	20.996 \| good	13.007 \| good	0.92 \| good	10.992 \| good	0.226 \| good
2025-09-17T02:00:00.000Z	33 \| good	5.793 \| good	25.001 \| good	10.918 \| good	0.936 \| good	10.683 \| good	0.223 \| good
2025-09-17T03:00:00.000Z	27 \| good	5.315 \| good	22.999 \| good	11.881 \| good	0.952 \| good	10.374 \| good	0.22 \| good
2025-09-17T04:00:00.000Z	33 \| good	5.834 \| good	25.008 \| good	11.492 \| good	0.964 \| good	10.345 \| good	0.22 \| good

Cambridge

Get reliable air quality data to drive your business

Cambridge, Massachusetts air quality map: Track AQI near you

0.71ppm

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 Cambridge, Massachusetts updated?

The air quality for Cambridge, Massachusetts is updated every hour.

When was the worst air quality at Cambridge, Massachusetts in the last 24 hrs?

The worst air quality in Cambridge, Massachusetts in the last 24 hours was observed at 03:00:00 on 2025-09-15.

When was the best air quality at Cambridge, Massachusetts in the last 24 hrs?

In the last 24 hrs, the best air quality in Cambridge, Massachusetts was observed at 11:00:00 on 2025-09-14.

What is the current air quality in Cambridge, Massachusetts?

The current air quality in Cambridge, Massachusetts is 56, categorized as Moderate based on real-time data.

What pollutant is the most common in Cambridge, Massachusetts?

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

What should I do if the air quality in Cambridge, Massachusetts is poor?

If the air quality in Cambridge, Massachusetts is poor, consider staying indoors and wearing a mask to protect yourself.

What is the current concentration of PM_2.5 in Cambridge, Massachusetts?

The current PM_2.5 concentration at Cambridge, Massachusetts is 11.976 μg/m³.

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

The current PM₁₀ concentration at Cambridge, Massachusetts is 50.428 μg/m³.

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

The current carbon monoxide (CO) concentration at Cambridge, Massachusetts is 0.7 ppm.

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

The current sulfur dioxide (SO₂) concentration at Cambridge, Massachusetts is 0.525 ppb.

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

The current ozone (O₃) concentration at Cambridge, Massachusetts is 17.335 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Cambridge, Massachusetts is 21.098 ppb.

Certified

APIs

Refund Policy

Historical Climate Data

Terms & Conditions

Refund Policy

Terms & Conditions

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-09-13T05:00:00.000Z	33 \| good	6.044 \| good	25.714 \| good	16.787 \| good	0.423 \| good	10.744 \| good	0.455 \| good
2025-09-13T06:00:00.000Z	33 \| good	6.066 \| good	25.94 \| good	12.117 \| good	0.473 \| good	11.514 \| good	0.404 \| good
2025-09-13T07:00:00.000Z	33 \| good	6.091 \| good	25.957 \| good	8.455 \| good	0.4 \| good	9.483 \| good	0.371 \| good
2025-09-13T08:00:00.000Z	33 \| good	6.026 \| good	25.192 \| good	5.499 \| good	0.423 \| good	7.651 \| good	0.327 \| good
2025-09-13T09:00:00.000Z	33 \| good	6.074 \| good	25.488 \| good	6.882 \| good	0.423 \| good	7.861 \| good	0.282 \| good
2025-09-13T10:00:00.000Z	33 \| good	6.183 \| good	26.166 \| good	7.933 \| good	0.423 \| good	9.82 \| good	0.293 \| good
2025-09-13T11:00:00.000Z	33 \| good	6.203 \| good	25.791 \| good	7.954 \| good	0.401 \| good	9.244 \| good	0.333 \| good
2025-09-13T12:00:00.000Z	33 \| good	6.344 \| good	26.855 \| good	7.342 \| good	0.573 \| good	12.503 \| good	0.426 \| good
2025-09-13T13:00:00.000Z	33 \| good	6.372 \| good	26.908 \| good	8.147 \| good	0.671 \| good	11.848 \| good	0.366 \| good
2025-09-13T14:00:00.000Z	33 \| good	6.418 \| good	27.035 \| good	14.933 \| good	0.574 \| good	10.741 \| good	0.234 \| good
2025-09-13T15:00:00.000Z	33 \| good	6.036 \| good	25.306 \| good	19.412 \| good	0.498 \| good	5.385 \| good	0.193 \| good
2025-09-13T16:00:00.000Z	33 \| good	6.016 \| good	25.363 \| good	20.817 \| good	0.422 \| good	4.328 \| good	0.193 \| good
2025-09-13T17:00:00.000Z	33 \| good	6.245 \| good	26.864 \| good	28.084 \| good	0.719 \| good	3.984 \| good	0.189 \| good
2025-09-13T18:00:00.000Z	38 \| good	6.66 \| good	28.394 \| good	31.399 \| good	0.643 \| good	2.991 \| good	0.189 \| good
2025-09-13T19:00:00.000Z	38 \| good	7.228 \| good	30.659 \| good	33.26 \| good	0.642 \| good	3.193 \| good	0.189 \| good
2025-09-13T20:00:00.000Z	38 \| good	7.46 \| good	31.301 \| good	33.481 \| good	0.545 \| good	6.403 \| good	0.23 \| good
2025-09-13T21:00:00.000Z	44 \| good	7.615 \| good	32.359 \| good	32.837 \| good	0.572 \| good	15.739 \| good	0.277 \| good
2025-09-13T22:00:00.000Z	44 \| good	7.548 \| good	32.119 \| good	34.516 \| good	0.571 \| good	10.617 \| good	0.277 \| good
2025-09-13T23:00:00.000Z	38 \| good	7.231 \| good	30.65 \| good	33.382 \| good	0.568 \| good	4.932 \| good	0.193 \| good
2025-09-14T00:00:00.000Z	38 \| good	6.903 \| good	28.828 \| good	32.76 \| good	0.495 \| good	5.027 \| good	0.238 \| good
2025-09-14T01:00:00.000Z	38 \| good	6.656 \| good	27.851 \| good	29.974 \| good	0.497 \| good	5.281 \| good	0.241 \| good
2025-09-14T02:00:00.000Z	38 \| good	6.666 \| good	28.224 \| good	33.203 \| good	0.498 \| good	5.687 \| good	0.245 \| good
2025-09-14T03:00:00.000Z	23 \| good	3.204 \| good	14 \| good	25.117 \| good	0.882 \| good	7.618 \| good	0.177 \| good
2025-09-14T04:00:00.000Z	33 \| good	5.893 \| good	24.48 \| good	27.222 \| good	0.475 \| good	4.443 \| good	0.329 \| good
2025-09-14T05:00:00.000Z	33 \| good	5.578 \| good	23.069 \| good	24.475 \| good	0.363 \| good	3.071 \| good	0.238 \| good
2025-09-14T06:00:00.000Z	27 \| good	5.466 \| good	21.954 \| good	22.994 \| good	0.418 \| good	2.838 \| good	0.234 \| good
2025-09-14T07:00:00.000Z	27 \| good	5.31 \| good	21.218 \| good	23.647 \| good	0.423 \| good	2.841 \| good	0.275 \| good
2025-09-14T08:00:00.000Z	27 \| good	5.324 \| good	21.324 \| good	20.182 \| good	0.498 \| good	6.316 \| good	0.275 \| good
2025-09-14T09:00:00.000Z	27 \| good	5.419 \| good	22.12 \| good	20.453 \| good	0.423 \| good	1.42 \| good	0.234 \| good
2025-09-14T10:00:00.000Z	27 \| good	5.425 \| good	22.152 \| good	18.09 \| good	0.423 \| good	2.794 \| good	0.23 \| good
2025-09-14T11:00:00.000Z	27 \| good	5.457 \| good	22.365 \| good	18.123 \| good	0.424 \| good	3.477 \| good	0.234 \| good
2025-09-14T12:00:00.000Z	33 \| good	5.571 \| good	22.418 \| good	19.199 \| good	0.423 \| good	3.297 \| good	0.278 \| good
2025-09-14T13:00:00.000Z	33 \| good	5.616 \| good	22.594 \| good	11.406 \| good	0.423 \| good	4.995 \| good	0.377 \| good
2025-09-14T14:00:00.000Z	33 \| good	5.88 \| good	24.94 \| good	15.137 \| good	0.422 \| good	4.539 \| good	0.282 \| good
2025-09-14T15:00:00.000Z	33 \| good	6.337 \| good	26.264 \| good	21.168 \| good	0.423 \| good	3.615 \| good	0.279 \| good
2025-09-14T16:00:00.000Z	38 \| good	6.914 \| good	28.94 \| good	25.963 \| good	0.495 \| good	1.836 \| good	0.241 \| good
2025-09-14T17:00:00.000Z	38 \| good	7.369 \| good	30.67 \| good	33.111 \| good	0.496 \| good	1.556 \| good	0.204 \| good
2025-09-14T18:00:00.000Z	44 \| good	8.145 \| good	33.589 \| good	37.373 \| good	0.497 \| good	2.105 \| good	0.238 \| good
2025-09-14T19:00:00.000Z	49 \| good	8.975 \| good	37.872 \| good	39.49 \| good	0.522 \| good	6.009 \| good	0.234 \| good
2025-09-14T20:00:00.000Z	52 \| moderate	9.553 \| good	40.052 \| good	39.684 \| good	0.573 \| good	11.98 \| good	0.238 \| good
2025-09-14T21:00:00.000Z	52 \| moderate	9.741 \| good	40.673 \| good	40.56 \| good	0.572 \| good	8.526 \| good	0.234 \| good
2025-09-14T22:00:00.000Z	52 \| moderate	9.719 \| good	40.398 \| good	37.83 \| good	0.572 \| good	9.737 \| good	0.234 \| good
2025-09-14T23:00:00.000Z	52 \| moderate	9.702 \| good	40.398 \| good	38.907 \| good	0.696 \| good	12.675 \| good	0.201 \| good
2025-09-15T00:00:00.000Z	52 \| moderate	9.783 \| good	41.102 \| good	28.492 \| good	0.571 \| good	13.957 \| good	0.293 \| good
2025-09-15T01:00:00.000Z	52 \| moderate	10.145 \| good	42.45 \| good	30.077 \| good	0.571 \| good	13.988 \| good	0.347 \| good
2025-09-15T02:00:00.000Z	54 \| moderate	11.037 \| good	47.026 \| good	23.611 \| good	0.501 \| good	17.759 \| good	0.48 \| good
2025-09-15T03:00:00.000Z	56 \| moderate	11.976 \| good	50.428 \| good	17.335 \| good	0.525 \| good	21.098 \| good	0.7 \| good
2025-09-15T04:00:00.000Z	56 \| moderate	11.785 \| good	49.583 \| good	17.361 \| good	0.549 \| good	22.761 \| good	0.785 \| good
2025-09-15T04:00:00.000Z	56 \| moderate	11.976 \| good	50.428 \| good	17.335 \| good	0.525 \| good	21.098 \| good	0.7 \| good
2025-09-15T05:00:00.000Z	75 \| moderate	21.92 \| fine	96.98 \| fine	14.644 \| good	1.583 \| good	24.774 \| good	0.388 \| good
2025-09-15T06:00:00.000Z	75 \| moderate	21.838 \| fine	94.997 \| fine	11.9 \| good	1.544 \| good	24.725 \| good	0.391 \| good
2025-09-15T07:00:00.000Z	75 \| moderate	21.918 \| fine	96.983 \| fine	10.033 \| good	1.367 \| good	23.169 \| good	0.381 \| good
2025-09-15T08:00:00.000Z	75 \| moderate	22.413 \| fine	98.983 \| fine	9.447 \| good	1.191 \| good	21.613 \| good	0.37 \| good
2025-09-15T09:00:00.000Z	84 \| moderate	26.848 \| fine	116.986 \| fine	11.091 \| good	1.014 \| good	20.057 \| good	0.36 \| good
2025-09-15T10:00:00.000Z	86 \| moderate	28.289 \| fine	122.99 \| fine	9.11 \| good	1.083 \| good	17.903 \| good	0.355 \| good
2025-09-15T11:00:00.000Z	90 \| moderate	30.47 \| fine	130.999 \| fine	9.868 \| good	1.151 \| good	15.75 \| good	0.351 \| good
2025-09-15T12:00:00.000Z	90 \| moderate	29.85 \| fine	128.991 \| fine	16.937 \| good	1.22 \| good	13.596 \| good	0.346 \| good
2025-09-15T13:00:00.000Z	84 \| moderate	27.039 \| fine	116.996 \| fine	26.723 \| good	1.194 \| good	10.553 \| good	0.304 \| good
2025-09-15T14:00:00.000Z	81 \| moderate	24.639 \| fine	107.001 \| fine	31.1 \| good	1.169 \| good	7.511 \| good	0.263 \| good
2025-09-15T15:00:00.000Z	69 \| moderate	18.83 \| fine	82.997 \| fine	34.322 \| good	1.143 \| good	4.468 \| good	0.221 \| good
2025-09-15T16:00:00.000Z	60 \| moderate	14.253 \| fine	63.007 \| fine	36.339 \| good	1.04 \| good	3.807 \| good	0.21 \| good
2025-09-15T17:00:00.000Z	58 \| moderate	13.241 \| fine	59.001 \| fine	38.289 \| good	0.936 \| good	3.147 \| good	0.198 \| good
2025-09-15T18:00:00.000Z	56 \| moderate	12.225 \| fine	54.993 \| good	37.578 \| good	0.833 \| good	2.486 \| good	0.186 \| good
2025-09-15T19:00:00.000Z	54 \| moderate	10.859 \| good	47.997 \| good	38.597 \| good	0.826 \| good	2.938 \| good	0.185 \| good
2025-09-15T20:00:00.000Z	52 \| moderate	10.38 \| good	45.993 \| good	37.715 \| good	0.818 \| good	3.391 \| good	0.184 \| good
2025-09-15T21:00:00.000Z	52 \| moderate	10.06 \| good	44.991 \| good	37.363 \| good	0.811 \| good	3.843 \| good	0.183 \| good
2025-09-15T22:00:00.000Z	52 \| moderate	9.626 \| good	42.995 \| good	35.027 \| good	0.891 \| good	6.499 \| good	0.199 \| good
2025-09-15T23:00:00.000Z	56 \| moderate	11.699 \| good	51.994 \| good	28.678 \| good	0.971 \| good	9.154 \| good	0.215 \| good
2025-09-16T00:00:00.000Z	56 \| moderate	12.167 \| fine	54.987 \| good	23.441 \| good	1.051 \| good	11.81 \| good	0.231 \| good
2025-09-16T01:00:00.000Z	58 \| moderate	12.905 \| fine	58.987 \| fine	19.629 \| good	1.081 \| good	12.311 \| good	0.234 \| good
2025-09-16T02:00:00.000Z	56 \| moderate	12.019 \| good	53.994 \| good	19.445 \| good	1.11 \| good	12.813 \| good	0.237 \| good
2025-09-16T03:00:00.000Z	56 \| moderate	11.685 \| good	51.009 \| good	21.353 \| good	1.14 \| good	13.314 \| good	0.239 \| good
2025-09-16T04:00:00.000Z	56 \| moderate	11.807 \| good	52.007 \| good	21.276 \| good	1.177 \| good	13.834 \| good	0.246 \| good
2025-09-16T05:00:00.000Z	56 \| moderate	11.923 \| good	53.991 \| good	18.667 \| good	1.214 \| good	14.354 \| good	0.252 \| good
2025-09-16T06:00:00.000Z	56 \| moderate	11.641 \| good	51.005 \| good	15.632 \| good	1.25 \| good	14.873 \| good	0.259 \| good
2025-09-16T07:00:00.000Z	54 \| moderate	11.3 \| good	50.001 \| good	12.163 \| good	1.213 \| good	15.19 \| good	0.261 \| good
2025-09-16T08:00:00.000Z	58 \| moderate	12.568 \| fine	56.988 \| fine	9.437 \| good	1.175 \| good	15.506 \| good	0.264 \| good
2025-09-16T09:00:00.000Z	62 \| moderate	15.238 \| fine	68.981 \| fine	9.323 \| good	1.137 \| good	15.822 \| good	0.266 \| good
2025-09-16T10:00:00.000Z	66 \| moderate	16.791 \| fine	74.988 \| fine	4.821 \| good	1.184 \| good	16.18 \| good	0.295 \| good
2025-09-16T11:00:00.000Z	73 \| moderate	21.23 \| fine	92.988 \| fine	5.132 \| good	1.23 \| good	16.537 \| good	0.324 \| good
2025-09-16T12:00:00.000Z	71 \| moderate	20.397 \| fine	88.995 \| fine	10.803 \| good	1.277 \| good	16.895 \| good	0.353 \| good
2025-09-16T13:00:00.000Z	64 \| moderate	16.223 \| fine	72.984 \| fine	19.024 \| good	1.636 \| good	14.176 \| good	0.31 \| good
2025-09-16T14:00:00.000Z	62 \| moderate	15.129 \| fine	66.996 \| fine	27.565 \| good	1.996 \| good	11.457 \| good	0.267 \| good
2025-09-16T15:00:00.000Z	62 \| moderate	14.692 \| fine	64.996 \| fine	33.37 \| good	2.355 \| good	8.738 \| good	0.223 \| good
2025-09-16T16:00:00.000Z	62 \| moderate	14.681 \| fine	64.998 \| fine	35.798 \| good	1.927 \| good	7.128 \| good	0.211 \| good
2025-09-16T17:00:00.000Z	58 \| moderate	13.301 \| fine	60.978 \| fine	36.915 \| good	1.499 \| good	5.517 \| good	0.198 \| good
2025-09-16T18:00:00.000Z	54 \| moderate	10.984 \| good	48.001 \| good	35.967 \| good	1.07 \| good	3.907 \| good	0.186 \| good
2025-09-16T19:00:00.000Z	38 \| good	6.977 \| good	30.993 \| good	31.783 \| good	0.988 \| good	3.938 \| good	0.185 \| good
2025-09-16T20:00:00.000Z	24 \| good	4.166 \| good	17.996 \| good	26.187 \| good	0.905 \| good	3.969 \| good	0.184 \| good
2025-09-16T21:00:00.000Z	22 \| good	4.269 \| good	18.991 \| good	23.973 \| good	0.822 \| good	3.999 \| good	0.183 \| good
2025-09-16T22:00:00.000Z	19 \| good	3.491 \| good	14.999 \| good	19.82 \| good	0.85 \| good	6.433 \| good	0.198 \| good
2025-09-16T23:00:00.000Z	27 \| good	4.939 \| good	21 \| good	17.935 \| good	0.877 \| good	8.867 \| good	0.213 \| good
2025-09-17T00:00:00.000Z	44 \| good	8.183 \| good	8.659 \| good	29.834 \| good	0.901 \| good	11.26 \| good	0.228 \| good
2025-09-17T01:00:00.000Z	27 \| good	4.753 \| good	20.996 \| good	13.007 \| good	0.92 \| good	10.992 \| good	0.226 \| good
2025-09-17T02:00:00.000Z	33 \| good	5.793 \| good	25.001 \| good	10.918 \| good	0.936 \| good	10.683 \| good	0.223 \| good
2025-09-17T03:00:00.000Z	27 \| good	5.315 \| good	22.999 \| good	11.881 \| good	0.952 \| good	10.374 \| good	0.22 \| good
2025-09-17T04:00:00.000Z	33 \| good	5.834 \| good	25.008 \| good	11.492 \| good	0.964 \| good	10.345 \| good	0.22 \| good

Cambridge, Massachusetts live air quality index now

Major air pollutants in Cambridge, Massachusetts

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Cambridge, Massachusetts air quality forecast and history

Get reliable air quality data to drive your business

Cambridge, Massachusetts air quality map: Track AQI near you

Air quality in nearby cities

Somerville, Massachusetts

Brookline, Massachusetts

Boston, Massachusetts

Medford, Massachusetts

Everett, Massachusetts

Watertown, Massachusetts

How accurate is Massachusetts, USA air quality data?

Air quality levels in US

Frequently asked questions

How often is the air quality data for Cambridge, Massachusetts updated?

When was the worst air quality at Cambridge, Massachusetts in the last 24 hrs?

When was the best air quality at Cambridge, Massachusetts in the last 24 hrs?

What is the current air quality in Cambridge, Massachusetts?

What pollutant is the most common in Cambridge, Massachusetts?

What should I do if the air quality in Cambridge, Massachusetts is poor?

What is the current concentration of PM2.5 in Cambridge, Massachusetts?

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

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

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

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

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

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What is the current concentration of PM_2.5 in Cambridge, Massachusetts?

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

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

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

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