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

The current PM10 concentration at Cambridge, Massachusetts is 66.826 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Cambridge, Massachusetts is 0.812 ppb.

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

The current ozone (O3) concentration at Cambridge, Massachusetts is 22.632 ppm.

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

The current nitrogen dioxide (NO2) concentration at Cambridge, Massachusetts is 23.771 ppb.

Live air quality index in Cambridge, Massachusetts today

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)

16.30 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

66.83 μg/m³

155

255

425

605+

Ozone (O₃)

22.63 ppb

201

201+

Sulfur Dioxide (SO₂)

0.81 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

23.77 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.25 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

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
2025-06-05T19:00:00.000Z	71 \| moderate	20.003 \| fine	82.275 \| fine	60.714 \| fine	0.432 \| good	6.544 \| good	0.285 \| good
2025-06-05T20:00:00.000Z	77 \| moderate	20.337 \| fine	83.256 \| fine	63.365 \| fine	0.391 \| good	7.203 \| good	0.333 \| good
2025-06-05T21:00:00.000Z	80 \| moderate	20.76 \| fine	84.838 \| fine	63.542 \| fine	0.507 \| good	13.595 \| good	0.333 \| good
2025-06-05T22:00:00.000Z	84 \| moderate	20.732 \| fine	84.818 \| fine	65.113 \| fine	0.501 \| good	12.702 \| good	0.388 \| good
2025-06-05T23:00:00.000Z	77 \| moderate	20.486 \| fine	83.438 \| fine	63.331 \| fine	0.592 \| good	12.44 \| good	0.385 \| good
2025-06-06T00:00:00.000Z	73 \| moderate	20.53 \| fine	84.732 \| fine	59.04 \| fine	0.502 \| good	11.377 \| good	0.389 \| good
2025-06-06T01:00:00.000Z	73 \| moderate	20.534 \| fine	84.28 \| fine	56.789 \| fine	0.5 \| good	8.135 \| good	0.389 \| good
2025-06-06T02:00:00.000Z	71 \| moderate	20.444 \| fine	84.041 \| fine	54.435 \| good	0.5 \| good	11.124 \| good	0.389 \| good
2025-06-06T03:00:00.000Z	93 \| moderate	20.467 \| fine	83.921 \| fine	67.845 \| fine	0.504 \| good	9.093 \| good	0.392 \| good
2025-06-06T04:00:00.000Z	84 \| moderate	20.467 \| fine	83.921 \| fine	65.014 \| fine	0.505 \| good	8.893 \| good	0.382 \| good
2025-06-06T05:00:00.000Z	71 \| moderate	20.467 \| fine	83.921 \| fine	53.477 \| good	0.725 \| good	13.207 \| good	0.278 \| good
2025-06-06T06:00:00.000Z	74 \| moderate	18.212 \| fine	101.971 \| fine	57.913 \| fine	0.727 \| good	16.44 \| good	0.22 \| good
2025-06-06T07:00:00.000Z	66 \| moderate	16.671 \| fine	55.83 \| fine	49.628 \| good	0.504 \| good	7.498 \| good	0.286 \| good
2025-06-06T08:00:00.000Z	73 \| moderate	21.238 \| fine	85.231 \| fine	54.747 \| good	0.502 \| good	7.683 \| good	0.28 \| good
2025-06-06T09:00:00.000Z	73 \| moderate	21.366 \| fine	86.23 \| fine	48.279 \| good	0.529 \| good	8.375 \| good	0.289 \| good
2025-06-06T10:00:00.000Z	75 \| moderate	21.621 \| fine	87.758 \| fine	41.733 \| good	0.525 \| good	6.755 \| good	0.289 \| good
2025-06-06T11:00:00.000Z	73 \| moderate	20.913 \| fine	84.042 \| fine	42.053 \| good	0.433 \| good	6.971 \| good	0.258 \| good
2025-06-06T12:00:00.000Z	71 \| moderate	19.753 \| fine	80.275 \| fine	39.232 \| good	0.448 \| good	12.289 \| good	0.251 \| good
2025-06-06T13:00:00.000Z	67 \| moderate	17.964 \| fine	73.552 \| fine	40.83 \| good	0.523 \| good	11.912 \| good	0.244 \| good
2025-06-06T14:00:00.000Z	66 \| moderate	16.545 \| fine	67.91 \| fine	40.285 \| good	0.44 \| good	8.895 \| good	0.244 \| good
2025-06-06T15:00:00.000Z	62 \| moderate	14.993 \| fine	62.629 \| fine	39.685 \| good	0.356 \| good	11.296 \| good	0.244 \| good
2025-06-06T16:00:00.000Z	60 \| moderate	13.994 \| fine	58.006 \| fine	43.438 \| good	0.585 \| good	13.383 \| good	0.244 \| good
2025-06-06T17:00:00.000Z	58 \| moderate	12.85 \| fine	54.613 \| good	44.661 \| good	0.491 \| good	9.265 \| good	0.203 \| good
2025-06-06T18:00:00.000Z	58 \| moderate	12.599 \| fine	53.639 \| good	38.052 \| good	0.436 \| good	8.666 \| good	0.244 \| good
2025-06-06T19:00:00.000Z	60 \| moderate	13.507 \| fine	57.638 \| fine	36.938 \| good	0.404 \| good	13.572 \| good	0.251 \| good
2025-06-06T20:00:00.000Z	62 \| moderate	14.694 \| fine	62.204 \| fine	33.374 \| good	0.504 \| good	11.799 \| good	0.206 \| good
2025-06-06T21:00:00.000Z	62 \| moderate	15.023 \| fine	63.147 \| fine	33.773 \| good	0.733 \| good	13.539 \| good	0.255 \| good
2025-06-06T22:00:00.000Z	64 \| moderate	15.605 \| fine	64.436 \| fine	33.71 \| good	0.532 \| good	16.631 \| good	0.251 \| good
2025-06-06T23:00:00.000Z	66 \| moderate	16.702 \| fine	68.951 \| fine	39.608 \| good	0.628 \| good	18.781 \| good	0.214 \| good
2025-06-07T00:00:00.000Z	69 \| moderate	18.501 \| fine	76.516 \| fine	25.031 \| good	0.713 \| good	24.293 \| good	0.255 \| good
2025-06-07T01:00:00.000Z	69 \| moderate	19.459 \| fine	78.873 \| fine	32.65 \| good	0.598 \| good	22.327 \| good	0.299 \| good
2025-06-07T02:00:00.000Z	71 \| moderate	20.013 \| fine	81.443 \| fine	33.517 \| good	0.439 \| good	11.57 \| good	0.336 \| good
2025-06-07T03:00:00.000Z	71 \| moderate	20.321 \| fine	82.068 \| fine	36.674 \| good	0.625 \| good	19.191 \| good	0.287 \| good
2025-06-07T04:00:00.000Z	71 \| moderate	20.321 \| fine	82.068 \| fine	33.815 \| good	0.616 \| good	19.684 \| good	0.286 \| good
2025-06-07T05:00:00.000Z	71 \| moderate	20.321 \| fine	82.068 \| fine	32.34 \| good	0.948 \| good	5.524 \| good	0.148 \| good
2025-06-07T06:00:00.000Z	38 \| good	7.279 \| good	24.404 \| good	32.935 \| good	0.924 \| good	8.293 \| good	0.15 \| good
2025-06-07T07:00:00.000Z	33 \| good	5.757 \| good	20.792 \| good	31.457 \| good	0.424 \| good	4.943 \| good	0.276 \| good
2025-06-07T08:00:00.000Z	69 \| moderate	19.162 \| fine	77.552 \| fine	35.138 \| good	0.431 \| good	5.251 \| good	0.276 \| good
2025-06-07T09:00:00.000Z	69 \| moderate	18.677 \| fine	75.503 \| fine	26.924 \| good	0.439 \| good	7.327 \| good	0.281 \| good
2025-06-07T10:00:00.000Z	62 \| moderate	14.629 \| fine	59.801 \| fine	26.319 \| good	0.432 \| good	4.927 \| good	0.193 \| good
2025-06-07T11:00:00.000Z	56 \| moderate	11.862 \| good	49.575 \| good	22.39 \| good	0.362 \| good	4.026 \| good	0.193 \| good
2025-06-07T12:00:00.000Z	52 \| moderate	10.421 \| good	43.385 \| good	19.604 \| good	0.463 \| good	3.855 \| good	0.193 \| good
2025-06-07T13:00:00.000Z	56 \| moderate	12.062 \| good	49.421 \| good	18.043 \| good	0.526 \| good	12.43 \| good	0.292 \| good
2025-06-07T14:00:00.000Z	64 \| moderate	15.788 \| fine	64.892 \| fine	23.672 \| good	0.625 \| good	14.488 \| good	0.292 \| good
2025-06-07T15:00:00.000Z	66 \| moderate	16.571 \| fine	68.852 \| fine	22.735 \| good	0.542 \| good	10.165 \| good	0.248 \| good
2025-06-07T16:00:00.000Z	64 \| moderate	16.139 \| fine	66.625 \| fine	25.024 \| good	0.617 \| good	17.221 \| good	0.244 \| good
2025-06-07T17:00:00.000Z	64 \| moderate	16.295 \| fine	66.826 \| fine	22.632 \| good	0.812 \| good	23.771 \| good	0.251 \| good
2025-06-07T18:00:00.000Z	64 \| moderate	16.295 \| fine	66.826 \| fine	22.632 \| good	0.812 \| good	23.771 \| good	0.251 \| good
2025-06-07T19:00:00.000Z	38 \| good	7.165 \| good	31.445 \| good	30.097 \| good	0.761 \| good	6.64 \| good	0.237 \| good
2025-06-07T20:00:00.000Z	31 \| good	5.42 \| good	23.412 \| good	32.74 \| good	0.87 \| good	7.802 \| good	0.24 \| good
2025-06-07T21:00:00.000Z	33 \| good	6.359 \| good	28.082 \| good	31.725 \| good	0.98 \| good	8.964 \| good	0.242 \| good
2025-06-07T22:00:00.000Z	52 \| moderate	10.044 \| good	44.843 \| good	37.831 \| good	0.855 \| good	10.115 \| good	0.276 \| good
2025-06-07T23:00:00.000Z	58 \| moderate	13.41 \| fine	60.753 \| fine	37.564 \| good	0.972 \| good	11.265 \| good	0.274 \| good
2025-06-08T00:00:00.000Z	44 \| good	7.957 \| good	35.099 \| good	36.598 \| good	1.089 \| good	12.415 \| good	0.273 \| good
2025-06-08T01:00:00.000Z	49 \| good	8.921 \| good	39.204 \| good	31.008 \| good	0.735 \| good	8.18 \| good	0.295 \| good
2025-06-08T02:00:00.000Z	54 \| moderate	10.976 \| good	48.167 \| good	29.228 \| good	0.784 \| good	9.126 \| good	0.292 \| good
2025-06-08T03:00:00.000Z	56 \| moderate	11.616 \| good	51.269 \| good	30.785 \| good	0.833 \| good	10.072 \| good	0.289 \| good
2025-06-08T04:00:00.000Z	52 \| moderate	10.163 \| good	45.292 \| good	35.582 \| good	0.733 \| good	5.984 \| good	0.33 \| good
2025-06-08T05:00:00.000Z	52 \| moderate	9.689 \| good	43.243 \| good	34.388 \| good	0.811 \| good	6.755 \| good	0.329 \| good
2025-06-08T06:00:00.000Z	52 \| moderate	10.307 \| good	45.349 \| good	30.588 \| good	0.889 \| good	7.526 \| good	0.329 \| good
2025-06-08T07:00:00.000Z	52 \| moderate	10.279 \| good	45.187 \| good	28.974 \| good	0.735 \| good	4.577 \| good	0.327 \| good
2025-06-08T08:00:00.000Z	56 \| moderate	11.777 \| good	52.124 \| good	25.885 \| good	0.814 \| good	5.35 \| good	0.335 \| good
2025-06-08T09:00:00.000Z	60 \| moderate	13.753 \| fine	61.065 \| fine	19.508 \| good	0.893 \| good	6.123 \| good	0.343 \| good
2025-06-08T10:00:00.000Z	58 \| moderate	12.501 \| fine	56.861 \| fine	20.789 \| good	0.726 \| good	3.666 \| good	0.327 \| good
2025-06-08T11:00:00.000Z	54 \| moderate	11.362 \| good	50.151 \| good	19.945 \| good	0.757 \| good	4.024 \| good	0.339 \| good
2025-06-08T12:00:00.000Z	52 \| moderate	10.128 \| good	45.146 \| good	23.553 \| good	0.788 \| good	4.381 \| good	0.35 \| good
2025-06-08T13:00:00.000Z	54 \| moderate	10.889 \| good	48.095 \| good	29.41 \| good	0.644 \| good	2.314 \| good	0.276 \| good
2025-06-08T14:00:00.000Z	56 \| moderate	11.957 \| good	54.029 \| good	31.502 \| good	0.641 \| good	2.394 \| good	0.277 \| good
2025-06-08T15:00:00.000Z	58 \| moderate	13.226 \| fine	59.225 \| fine	34.727 \| good	0.639 \| good	2.475 \| good	0.277 \| good
2025-06-08T16:00:00.000Z	62 \| moderate	14.635 \| fine	65.198 \| fine	34.89 \| good	0.567 \| good	1.899 \| good	0.25 \| good
2025-06-08T17:00:00.000Z	64 \| moderate	16.197 \| fine	71.233 \| fine	33.74 \| good	0.552 \| good	1.925 \| good	0.249 \| good
2025-06-08T18:00:00.000Z	67 \| moderate	17.994 \| fine	79.119 \| fine	34.352 \| good	0.537 \| good	1.952 \| good	0.247 \| good
2025-06-08T19:00:00.000Z	66 \| moderate	16.749 \| fine	74.881 \| fine	35.936 \| good	0.591 \| good	3.281 \| good	0.272 \| good
2025-06-08T20:00:00.000Z	66 \| moderate	16.65 \| fine	73.289 \| fine	34.887 \| good	0.578 \| good	3.329 \| good	0.272 \| good
2025-06-08T21:00:00.000Z	64 \| moderate	15.578 \| fine	69.233 \| fine	34.304 \| good	0.564 \| good	3.377 \| good	0.272 \| good
2025-06-08T22:00:00.000Z	64 \| moderate	15.538 \| fine	69.125 \| fine	35.398 \| good	0.705 \| good	6.745 \| good	0.306 \| good
2025-06-08T23:00:00.000Z	64 \| moderate	15.545 \| fine	69.05 \| fine	33.408 \| good	0.681 \| good	7.105 \| good	0.308 \| good
2025-06-09T00:00:00.000Z	56 \| moderate	11.566 \| good	51.252 \| good	30.525 \| good	0.658 \| good	7.465 \| good	0.31 \| good
2025-06-09T01:00:00.000Z	49 \| good	8.727 \| good	38.345 \| good	28.561 \| good	0.724 \| good	8.856 \| good	0.319 \| good
2025-06-09T02:00:00.000Z	38 \| good	7.289 \| good	32.204 \| good	31.94 \| good	0.688 \| good	9.854 \| good	0.326 \| good
2025-06-09T03:00:00.000Z	49 \| good	8.677 \| good	38.173 \| good	34.622 \| good	0.653 \| good	10.852 \| good	0.334 \| good
2025-06-09T04:00:00.000Z	52 \| moderate	9.967 \| good	44.199 \| good	36.739 \| good	0.662 \| good	4.055 \| good	0.286 \| good
2025-06-09T05:00:00.000Z	54 \| moderate	10.578 \| good	47.077 \| good	38.214 \| good	0.616 \| good	3.905 \| good	0.285 \| good
2025-06-09T06:00:00.000Z	52 \| moderate	10.33 \| good	45.981 \| good	36.874 \| good	0.571 \| good	3.755 \| good	0.285 \| good
2025-06-09T07:00:00.000Z	52 \| moderate	9.946 \| good	44.107 \| good	35.431 \| good	0.63 \| good	2.335 \| good	0.262 \| good
2025-06-09T08:00:00.000Z	56 \| moderate	11.853 \| good	52.109 \| good	32.753 \| good	0.598 \| good	2.211 \| good	0.26 \| good
2025-06-09T09:00:00.000Z	56 \| moderate	12.091 \| good	53.993 \| good	26.255 \| good	0.566 \| good	2.087 \| good	0.257 \| good
2025-06-09T10:00:00.000Z	54 \| moderate	11.123 \| good	49.04 \| good	25.639 \| good	0.567 \| good	3.803 \| good	0.25 \| good
2025-06-09T11:00:00.000Z	52 \| moderate	10.434 \| good	46.105 \| good	29.166 \| good	0.539 \| good	3.734 \| good	0.245 \| good
2025-06-09T12:00:00.000Z	54 \| moderate	10.857 \| good	48.135 \| good	29.69 \| good	0.511 \| good	3.665 \| good	0.24 \| good
2025-06-09T13:00:00.000Z	54 \| moderate	11.315 \| good	50.132 \| good	31.861 \| good	0.543 \| good	4.26 \| good	0.201 \| good
2025-06-09T14:00:00.000Z	54 \| moderate	11.121 \| good	49.039 \| good	31.239 \| good	0.525 \| good	4.06 \| good	0.191 \| good
2025-06-09T15:00:00.000Z	54 \| moderate	10.647 \| good	47.017 \| good	33.867 \| good	0.508 \| good	3.86 \| good	0.181 \| good
2025-06-09T16:00:00.000Z	52 \| moderate	10.221 \| good	45.079 \| good	36.534 \| good	0.554 \| good	3.394 \| good	0.167 \| good
2025-06-09T17:00:00.000Z	52 \| moderate	9.781 \| good	43.1 \| good	37.505 \| good	0.53 \| good	3.214 \| good	0.165 \| good
2025-06-09T18:00:00.000Z	49 \| good	9.419 \| good	41.985 \| good	37.525 \| good	0.506 \| good	3.034 \| good	0.163 \| good

Cambridge

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Cambridge, Massachusetts air quality map: Track AQI near you

0.25ppm

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

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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 05:00:00 on 2025-06-07.

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 07:00:00 on 2025-06-07.

What is the current air quality in Cambridge, Massachusetts?

The current air quality in Cambridge, Massachusetts is 64, 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 16.295 μg/m³.

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

The current PM₁₀ concentration at Cambridge, Massachusetts is 66.826 μg/m³.

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

The current carbon monoxide (CO) concentration at Cambridge, Massachusetts is 0.251 ppm.

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

The current sulfur dioxide (SO₂) concentration at Cambridge, Massachusetts is 0.812 ppb.

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

The current ozone (O₃) concentration at Cambridge, Massachusetts is 22.632 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Cambridge, Massachusetts is 23.771 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-05T19:00:00.000Z	71 \| moderate	20.003 \| fine	82.275 \| fine	60.714 \| fine	0.432 \| good	6.544 \| good	0.285 \| good
2025-06-05T20:00:00.000Z	77 \| moderate	20.337 \| fine	83.256 \| fine	63.365 \| fine	0.391 \| good	7.203 \| good	0.333 \| good
2025-06-05T21:00:00.000Z	80 \| moderate	20.76 \| fine	84.838 \| fine	63.542 \| fine	0.507 \| good	13.595 \| good	0.333 \| good
2025-06-05T22:00:00.000Z	84 \| moderate	20.732 \| fine	84.818 \| fine	65.113 \| fine	0.501 \| good	12.702 \| good	0.388 \| good
2025-06-05T23:00:00.000Z	77 \| moderate	20.486 \| fine	83.438 \| fine	63.331 \| fine	0.592 \| good	12.44 \| good	0.385 \| good
2025-06-06T00:00:00.000Z	73 \| moderate	20.53 \| fine	84.732 \| fine	59.04 \| fine	0.502 \| good	11.377 \| good	0.389 \| good
2025-06-06T01:00:00.000Z	73 \| moderate	20.534 \| fine	84.28 \| fine	56.789 \| fine	0.5 \| good	8.135 \| good	0.389 \| good
2025-06-06T02:00:00.000Z	71 \| moderate	20.444 \| fine	84.041 \| fine	54.435 \| good	0.5 \| good	11.124 \| good	0.389 \| good
2025-06-06T03:00:00.000Z	93 \| moderate	20.467 \| fine	83.921 \| fine	67.845 \| fine	0.504 \| good	9.093 \| good	0.392 \| good
2025-06-06T04:00:00.000Z	84 \| moderate	20.467 \| fine	83.921 \| fine	65.014 \| fine	0.505 \| good	8.893 \| good	0.382 \| good
2025-06-06T05:00:00.000Z	71 \| moderate	20.467 \| fine	83.921 \| fine	53.477 \| good	0.725 \| good	13.207 \| good	0.278 \| good
2025-06-06T06:00:00.000Z	74 \| moderate	18.212 \| fine	101.971 \| fine	57.913 \| fine	0.727 \| good	16.44 \| good	0.22 \| good
2025-06-06T07:00:00.000Z	66 \| moderate	16.671 \| fine	55.83 \| fine	49.628 \| good	0.504 \| good	7.498 \| good	0.286 \| good
2025-06-06T08:00:00.000Z	73 \| moderate	21.238 \| fine	85.231 \| fine	54.747 \| good	0.502 \| good	7.683 \| good	0.28 \| good
2025-06-06T09:00:00.000Z	73 \| moderate	21.366 \| fine	86.23 \| fine	48.279 \| good	0.529 \| good	8.375 \| good	0.289 \| good
2025-06-06T10:00:00.000Z	75 \| moderate	21.621 \| fine	87.758 \| fine	41.733 \| good	0.525 \| good	6.755 \| good	0.289 \| good
2025-06-06T11:00:00.000Z	73 \| moderate	20.913 \| fine	84.042 \| fine	42.053 \| good	0.433 \| good	6.971 \| good	0.258 \| good
2025-06-06T12:00:00.000Z	71 \| moderate	19.753 \| fine	80.275 \| fine	39.232 \| good	0.448 \| good	12.289 \| good	0.251 \| good
2025-06-06T13:00:00.000Z	67 \| moderate	17.964 \| fine	73.552 \| fine	40.83 \| good	0.523 \| good	11.912 \| good	0.244 \| good
2025-06-06T14:00:00.000Z	66 \| moderate	16.545 \| fine	67.91 \| fine	40.285 \| good	0.44 \| good	8.895 \| good	0.244 \| good
2025-06-06T15:00:00.000Z	62 \| moderate	14.993 \| fine	62.629 \| fine	39.685 \| good	0.356 \| good	11.296 \| good	0.244 \| good
2025-06-06T16:00:00.000Z	60 \| moderate	13.994 \| fine	58.006 \| fine	43.438 \| good	0.585 \| good	13.383 \| good	0.244 \| good
2025-06-06T17:00:00.000Z	58 \| moderate	12.85 \| fine	54.613 \| good	44.661 \| good	0.491 \| good	9.265 \| good	0.203 \| good
2025-06-06T18:00:00.000Z	58 \| moderate	12.599 \| fine	53.639 \| good	38.052 \| good	0.436 \| good	8.666 \| good	0.244 \| good
2025-06-06T19:00:00.000Z	60 \| moderate	13.507 \| fine	57.638 \| fine	36.938 \| good	0.404 \| good	13.572 \| good	0.251 \| good
2025-06-06T20:00:00.000Z	62 \| moderate	14.694 \| fine	62.204 \| fine	33.374 \| good	0.504 \| good	11.799 \| good	0.206 \| good
2025-06-06T21:00:00.000Z	62 \| moderate	15.023 \| fine	63.147 \| fine	33.773 \| good	0.733 \| good	13.539 \| good	0.255 \| good
2025-06-06T22:00:00.000Z	64 \| moderate	15.605 \| fine	64.436 \| fine	33.71 \| good	0.532 \| good	16.631 \| good	0.251 \| good
2025-06-06T23:00:00.000Z	66 \| moderate	16.702 \| fine	68.951 \| fine	39.608 \| good	0.628 \| good	18.781 \| good	0.214 \| good
2025-06-07T00:00:00.000Z	69 \| moderate	18.501 \| fine	76.516 \| fine	25.031 \| good	0.713 \| good	24.293 \| good	0.255 \| good
2025-06-07T01:00:00.000Z	69 \| moderate	19.459 \| fine	78.873 \| fine	32.65 \| good	0.598 \| good	22.327 \| good	0.299 \| good
2025-06-07T02:00:00.000Z	71 \| moderate	20.013 \| fine	81.443 \| fine	33.517 \| good	0.439 \| good	11.57 \| good	0.336 \| good
2025-06-07T03:00:00.000Z	71 \| moderate	20.321 \| fine	82.068 \| fine	36.674 \| good	0.625 \| good	19.191 \| good	0.287 \| good
2025-06-07T04:00:00.000Z	71 \| moderate	20.321 \| fine	82.068 \| fine	33.815 \| good	0.616 \| good	19.684 \| good	0.286 \| good
2025-06-07T05:00:00.000Z	71 \| moderate	20.321 \| fine	82.068 \| fine	32.34 \| good	0.948 \| good	5.524 \| good	0.148 \| good
2025-06-07T06:00:00.000Z	38 \| good	7.279 \| good	24.404 \| good	32.935 \| good	0.924 \| good	8.293 \| good	0.15 \| good
2025-06-07T07:00:00.000Z	33 \| good	5.757 \| good	20.792 \| good	31.457 \| good	0.424 \| good	4.943 \| good	0.276 \| good
2025-06-07T08:00:00.000Z	69 \| moderate	19.162 \| fine	77.552 \| fine	35.138 \| good	0.431 \| good	5.251 \| good	0.276 \| good
2025-06-07T09:00:00.000Z	69 \| moderate	18.677 \| fine	75.503 \| fine	26.924 \| good	0.439 \| good	7.327 \| good	0.281 \| good
2025-06-07T10:00:00.000Z	62 \| moderate	14.629 \| fine	59.801 \| fine	26.319 \| good	0.432 \| good	4.927 \| good	0.193 \| good
2025-06-07T11:00:00.000Z	56 \| moderate	11.862 \| good	49.575 \| good	22.39 \| good	0.362 \| good	4.026 \| good	0.193 \| good
2025-06-07T12:00:00.000Z	52 \| moderate	10.421 \| good	43.385 \| good	19.604 \| good	0.463 \| good	3.855 \| good	0.193 \| good
2025-06-07T13:00:00.000Z	56 \| moderate	12.062 \| good	49.421 \| good	18.043 \| good	0.526 \| good	12.43 \| good	0.292 \| good
2025-06-07T14:00:00.000Z	64 \| moderate	15.788 \| fine	64.892 \| fine	23.672 \| good	0.625 \| good	14.488 \| good	0.292 \| good
2025-06-07T15:00:00.000Z	66 \| moderate	16.571 \| fine	68.852 \| fine	22.735 \| good	0.542 \| good	10.165 \| good	0.248 \| good
2025-06-07T16:00:00.000Z	64 \| moderate	16.139 \| fine	66.625 \| fine	25.024 \| good	0.617 \| good	17.221 \| good	0.244 \| good
2025-06-07T17:00:00.000Z	64 \| moderate	16.295 \| fine	66.826 \| fine	22.632 \| good	0.812 \| good	23.771 \| good	0.251 \| good
2025-06-07T18:00:00.000Z	64 \| moderate	16.295 \| fine	66.826 \| fine	22.632 \| good	0.812 \| good	23.771 \| good	0.251 \| good
2025-06-07T19:00:00.000Z	38 \| good	7.165 \| good	31.445 \| good	30.097 \| good	0.761 \| good	6.64 \| good	0.237 \| good
2025-06-07T20:00:00.000Z	31 \| good	5.42 \| good	23.412 \| good	32.74 \| good	0.87 \| good	7.802 \| good	0.24 \| good
2025-06-07T21:00:00.000Z	33 \| good	6.359 \| good	28.082 \| good	31.725 \| good	0.98 \| good	8.964 \| good	0.242 \| good
2025-06-07T22:00:00.000Z	52 \| moderate	10.044 \| good	44.843 \| good	37.831 \| good	0.855 \| good	10.115 \| good	0.276 \| good
2025-06-07T23:00:00.000Z	58 \| moderate	13.41 \| fine	60.753 \| fine	37.564 \| good	0.972 \| good	11.265 \| good	0.274 \| good
2025-06-08T00:00:00.000Z	44 \| good	7.957 \| good	35.099 \| good	36.598 \| good	1.089 \| good	12.415 \| good	0.273 \| good
2025-06-08T01:00:00.000Z	49 \| good	8.921 \| good	39.204 \| good	31.008 \| good	0.735 \| good	8.18 \| good	0.295 \| good
2025-06-08T02:00:00.000Z	54 \| moderate	10.976 \| good	48.167 \| good	29.228 \| good	0.784 \| good	9.126 \| good	0.292 \| good
2025-06-08T03:00:00.000Z	56 \| moderate	11.616 \| good	51.269 \| good	30.785 \| good	0.833 \| good	10.072 \| good	0.289 \| good
2025-06-08T04:00:00.000Z	52 \| moderate	10.163 \| good	45.292 \| good	35.582 \| good	0.733 \| good	5.984 \| good	0.33 \| good
2025-06-08T05:00:00.000Z	52 \| moderate	9.689 \| good	43.243 \| good	34.388 \| good	0.811 \| good	6.755 \| good	0.329 \| good
2025-06-08T06:00:00.000Z	52 \| moderate	10.307 \| good	45.349 \| good	30.588 \| good	0.889 \| good	7.526 \| good	0.329 \| good
2025-06-08T07:00:00.000Z	52 \| moderate	10.279 \| good	45.187 \| good	28.974 \| good	0.735 \| good	4.577 \| good	0.327 \| good
2025-06-08T08:00:00.000Z	56 \| moderate	11.777 \| good	52.124 \| good	25.885 \| good	0.814 \| good	5.35 \| good	0.335 \| good
2025-06-08T09:00:00.000Z	60 \| moderate	13.753 \| fine	61.065 \| fine	19.508 \| good	0.893 \| good	6.123 \| good	0.343 \| good
2025-06-08T10:00:00.000Z	58 \| moderate	12.501 \| fine	56.861 \| fine	20.789 \| good	0.726 \| good	3.666 \| good	0.327 \| good
2025-06-08T11:00:00.000Z	54 \| moderate	11.362 \| good	50.151 \| good	19.945 \| good	0.757 \| good	4.024 \| good	0.339 \| good
2025-06-08T12:00:00.000Z	52 \| moderate	10.128 \| good	45.146 \| good	23.553 \| good	0.788 \| good	4.381 \| good	0.35 \| good
2025-06-08T13:00:00.000Z	54 \| moderate	10.889 \| good	48.095 \| good	29.41 \| good	0.644 \| good	2.314 \| good	0.276 \| good
2025-06-08T14:00:00.000Z	56 \| moderate	11.957 \| good	54.029 \| good	31.502 \| good	0.641 \| good	2.394 \| good	0.277 \| good
2025-06-08T15:00:00.000Z	58 \| moderate	13.226 \| fine	59.225 \| fine	34.727 \| good	0.639 \| good	2.475 \| good	0.277 \| good
2025-06-08T16:00:00.000Z	62 \| moderate	14.635 \| fine	65.198 \| fine	34.89 \| good	0.567 \| good	1.899 \| good	0.25 \| good
2025-06-08T17:00:00.000Z	64 \| moderate	16.197 \| fine	71.233 \| fine	33.74 \| good	0.552 \| good	1.925 \| good	0.249 \| good
2025-06-08T18:00:00.000Z	67 \| moderate	17.994 \| fine	79.119 \| fine	34.352 \| good	0.537 \| good	1.952 \| good	0.247 \| good
2025-06-08T19:00:00.000Z	66 \| moderate	16.749 \| fine	74.881 \| fine	35.936 \| good	0.591 \| good	3.281 \| good	0.272 \| good
2025-06-08T20:00:00.000Z	66 \| moderate	16.65 \| fine	73.289 \| fine	34.887 \| good	0.578 \| good	3.329 \| good	0.272 \| good
2025-06-08T21:00:00.000Z	64 \| moderate	15.578 \| fine	69.233 \| fine	34.304 \| good	0.564 \| good	3.377 \| good	0.272 \| good
2025-06-08T22:00:00.000Z	64 \| moderate	15.538 \| fine	69.125 \| fine	35.398 \| good	0.705 \| good	6.745 \| good	0.306 \| good
2025-06-08T23:00:00.000Z	64 \| moderate	15.545 \| fine	69.05 \| fine	33.408 \| good	0.681 \| good	7.105 \| good	0.308 \| good
2025-06-09T00:00:00.000Z	56 \| moderate	11.566 \| good	51.252 \| good	30.525 \| good	0.658 \| good	7.465 \| good	0.31 \| good
2025-06-09T01:00:00.000Z	49 \| good	8.727 \| good	38.345 \| good	28.561 \| good	0.724 \| good	8.856 \| good	0.319 \| good
2025-06-09T02:00:00.000Z	38 \| good	7.289 \| good	32.204 \| good	31.94 \| good	0.688 \| good	9.854 \| good	0.326 \| good
2025-06-09T03:00:00.000Z	49 \| good	8.677 \| good	38.173 \| good	34.622 \| good	0.653 \| good	10.852 \| good	0.334 \| good
2025-06-09T04:00:00.000Z	52 \| moderate	9.967 \| good	44.199 \| good	36.739 \| good	0.662 \| good	4.055 \| good	0.286 \| good
2025-06-09T05:00:00.000Z	54 \| moderate	10.578 \| good	47.077 \| good	38.214 \| good	0.616 \| good	3.905 \| good	0.285 \| good
2025-06-09T06:00:00.000Z	52 \| moderate	10.33 \| good	45.981 \| good	36.874 \| good	0.571 \| good	3.755 \| good	0.285 \| good
2025-06-09T07:00:00.000Z	52 \| moderate	9.946 \| good	44.107 \| good	35.431 \| good	0.63 \| good	2.335 \| good	0.262 \| good
2025-06-09T08:00:00.000Z	56 \| moderate	11.853 \| good	52.109 \| good	32.753 \| good	0.598 \| good	2.211 \| good	0.26 \| good
2025-06-09T09:00:00.000Z	56 \| moderate	12.091 \| good	53.993 \| good	26.255 \| good	0.566 \| good	2.087 \| good	0.257 \| good
2025-06-09T10:00:00.000Z	54 \| moderate	11.123 \| good	49.04 \| good	25.639 \| good	0.567 \| good	3.803 \| good	0.25 \| good
2025-06-09T11:00:00.000Z	52 \| moderate	10.434 \| good	46.105 \| good	29.166 \| good	0.539 \| good	3.734 \| good	0.245 \| good
2025-06-09T12:00:00.000Z	54 \| moderate	10.857 \| good	48.135 \| good	29.69 \| good	0.511 \| good	3.665 \| good	0.24 \| good
2025-06-09T13:00:00.000Z	54 \| moderate	11.315 \| good	50.132 \| good	31.861 \| good	0.543 \| good	4.26 \| good	0.201 \| good
2025-06-09T14:00:00.000Z	54 \| moderate	11.121 \| good	49.039 \| good	31.239 \| good	0.525 \| good	4.06 \| good	0.191 \| good
2025-06-09T15:00:00.000Z	54 \| moderate	10.647 \| good	47.017 \| good	33.867 \| good	0.508 \| good	3.86 \| good	0.181 \| good
2025-06-09T16:00:00.000Z	52 \| moderate	10.221 \| good	45.079 \| good	36.534 \| good	0.554 \| good	3.394 \| good	0.167 \| good
2025-06-09T17:00:00.000Z	52 \| moderate	9.781 \| good	43.1 \| good	37.505 \| good	0.53 \| good	3.214 \| good	0.165 \| good
2025-06-09T18:00:00.000Z	49 \| good	9.419 \| good	41.985 \| good	37.525 \| good	0.506 \| good	3.034 \| good	0.163 \| good

Live air quality index in Cambridge, Massachusetts today

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)

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Watertown, Massachusetts

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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?

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