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

The current PM10 concentration at Cambridge, Massachusetts is 43.681 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Cambridge, Massachusetts is 0.547 ppb.

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

The current ozone (O3) concentration at Cambridge, Massachusetts is 40.838 ppm.

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

The current nitrogen dioxide (NO2) concentration at Cambridge, Massachusetts is 7.082 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)

20.39 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

63.18 μg/m³

155

255

425

605+

Ozone (O₃)

18.98 ppb

201

201+

Sulfur Dioxide (SO₂)

0.45 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

11.80 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.20 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
2025-07-29T08:00:00.000Z	60 \| moderate	13.924 \| fine	51.966 \| good	20.914 \| good	0.342 \| good	5.724 \| good	0.291 \| good
2025-07-29T09:00:00.000Z	62 \| moderate	15.296 \| fine	64.415 \| fine	21.699 \| good	0.335 \| good	5.549 \| good	0.299 \| good
2025-07-29T10:00:00.000Z	64 \| moderate	15.624 \| fine	66.243 \| fine	24.51 \| good	0.378 \| good	5.087 \| good	0.302 \| good
2025-07-29T11:00:00.000Z	64 \| moderate	16.11 \| fine	67.674 \| fine	21.757 \| good	0.313 \| good	7.03 \| good	0.346 \| good
2025-07-29T12:00:00.000Z	64 \| moderate	16.371 \| fine	69.283 \| fine	21.392 \| good	0.35 \| good	10.048 \| good	0.441 \| good
2025-07-29T13:00:00.000Z	64 \| moderate	16.463 \| fine	69.674 \| fine	20.301 \| good	0.369 \| good	8.557 \| good	0.35 \| good
2025-07-29T14:00:00.000Z	64 \| moderate	16.368 \| fine	68.929 \| fine	30.114 \| good	0.421 \| good	8.636 \| good	0.386 \| good
2025-07-29T15:00:00.000Z	64 \| moderate	16.368 \| fine	69.015 \| fine	33.448 \| good	0.378 \| good	8.284 \| good	0.304 \| good
2025-07-29T16:00:00.000Z	64 \| moderate	16.463 \| fine	70.222 \| fine	40.093 \| good	0.382 \| good	7.309 \| good	0.256 \| good
2025-07-29T17:00:00.000Z	64 \| moderate	16.44 \| fine	70.562 \| fine	45.986 \| good	0.438 \| good	7.255 \| good	0.256 \| good
2025-07-29T18:00:00.000Z	64 \| moderate	16.136 \| fine	68.992 \| fine	50.036 \| good	0.532 \| good	5.75 \| good	0.252 \| good
2025-07-29T19:00:00.000Z	62 \| moderate	15.457 \| fine	66.77 \| fine	52.829 \| good	0.623 \| good	5.692 \| good	0.255 \| good
2025-07-29T20:00:00.000Z	62 \| moderate	14.948 \| fine	64.856 \| fine	51.747 \| good	0.682 \| good	5.161 \| good	0.304 \| good
2025-07-29T21:00:00.000Z	62 \| moderate	14.635 \| fine	63.028 \| fine	51.527 \| good	0.639 \| good	4.34 \| good	0.259 \| good
2025-07-29T22:00:00.000Z	60 \| moderate	14.352 \| fine	60.942 \| fine	47.762 \| good	0.64 \| good	4.046 \| good	0.255 \| good
2025-07-29T23:00:00.000Z	60 \| moderate	13.579 \| fine	58.832 \| fine	44.167 \| good	0.584 \| good	4.151 \| good	0.255 \| good
2025-07-30T00:00:00.000Z	56 \| moderate	12.35 \| fine	53.211 \| good	41.232 \| good	0.531 \| good	4.578 \| good	0.263 \| good
2025-07-30T01:00:00.000Z	54 \| moderate	10.782 \| good	45.817 \| good	42.092 \| good	0.473 \| good	6.717 \| good	0.212 \| good
2025-07-30T02:00:00.000Z	52 \| moderate	10.311 \| good	44.094 \| good	34.903 \| good	0.307 \| good	7.682 \| good	0.219 \| good
2025-07-30T03:00:00.000Z	69 \| moderate	18.88 \| fine	83.136 \| fine	19.127 \| good	0.903 \| good	13.408 \| good	0.283 \| good
2025-07-30T04:00:00.000Z	54 \| moderate	10.742 \| good	45.806 \| good	35.455 \| good	0.321 \| good	11.932 \| good	0.308 \| good
2025-07-30T05:00:00.000Z	54 \| moderate	10.742 \| good	45.806 \| good	40.753 \| good	0.373 \| good	12.714 \| good	0.338 \| good
2025-07-30T06:00:00.000Z	49 \| good	8.804 \| good	38.052 \| good	37.935 \| good	0.306 \| good	15.064 \| good	0.281 \| good
2025-07-30T07:00:00.000Z	44 \| good	8.152 \| good	47.545 \| good	22.702 \| good	0.518 \| good	15.321 \| good	0.344 \| good
2025-07-30T08:00:00.000Z	56 \| moderate	11.558 \| good	48.225 \| good	21.742 \| good	0.534 \| good	16.599 \| good	0.34 \| good
2025-07-30T09:00:00.000Z	54 \| moderate	11.003 \| good	46.396 \| good	15.401 \| good	0.434 \| good	8.914 \| good	0.217 \| good
2025-07-30T10:00:00.000Z	52 \| moderate	10.228 \| good	43.713 \| good	19.151 \| good	0.4 \| good	9.099 \| good	0.224 \| good
2025-07-30T11:00:00.000Z	52 \| moderate	9.611 \| good	41.026 \| good	16.946 \| good	0.413 \| good	11.339 \| good	0.228 \| good
2025-07-30T12:00:00.000Z	49 \| good	9.345 \| good	39.656 \| good	17.624 \| good	0.429 \| good	11.322 \| good	0.318 \| good
2025-07-30T13:00:00.000Z	52 \| moderate	10.094 \| good	42.975 \| good	25.205 \| good	0.445 \| good	10.996 \| good	0.3 \| good
2025-07-30T14:00:00.000Z	54 \| moderate	11.157 \| good	48.377 \| good	28.873 \| good	0.547 \| good	9.298 \| good	0.257 \| good
2025-07-30T15:00:00.000Z	54 \| moderate	11.127 \| good	48.269 \| good	28.786 \| good	0.392 \| good	5.516 \| good	0.226 \| good
2025-07-30T16:00:00.000Z	54 \| moderate	11.295 \| good	48.225 \| good	35.658 \| good	0.44 \| good	6.515 \| good	0.213 \| good
2025-07-30T17:00:00.000Z	54 \| moderate	11.458 \| good	49.027 \| good	40.128 \| good	0.672 \| good	9.511 \| good	0.257 \| good
2025-07-30T18:00:00.000Z	56 \| moderate	11.737 \| good	51.719 \| good	38.729 \| good	0.579 \| good	8.077 \| good	0.251 \| good
2025-07-30T19:00:00.000Z	56 \| moderate	11.96 \| good	51.852 \| good	48.928 \| good	0.589 \| good	7.095 \| good	0.261 \| good
2025-07-30T20:00:00.000Z	56 \| moderate	12.093 \| good	52.332 \| good	48.135 \| good	0.54 \| good	6.813 \| good	0.261 \| good
2025-07-30T21:00:00.000Z	56 \| moderate	12.085 \| good	51.986 \| good	41.674 \| good	0.602 \| good	7.562 \| good	0.303 \| good
2025-07-30T22:00:00.000Z	56 \| moderate	12.026 \| good	51.963 \| good	41.33 \| good	0.513 \| good	7.968 \| good	0.343 \| good
2025-07-30T23:00:00.000Z	56 \| moderate	11.853 \| good	51.767 \| good	35.819 \| good	0.669 \| good	11.353 \| good	0.263 \| good
2025-07-31T00:00:00.000Z	56 \| moderate	11.54 \| good	50.262 \| good	38.46 \| good	0.46 \| good	7.353 \| good	0.263 \| good
2025-07-31T01:00:00.000Z	54 \| moderate	11.475 \| good	49.22 \| good	41.541 \| good	0.42 \| good	13.469 \| good	0.351 \| good
2025-07-31T02:00:00.000Z	54 \| moderate	11.347 \| good	48.591 \| good	37.437 \| good	0.427 \| good	10.734 \| good	0.304 \| good
2025-07-31T03:00:00.000Z	54 \| moderate	10.891 \| good	46.463 \| good	30.987 \| good	0.419 \| good	7.683 \| good	0.26 \| good
2025-07-31T04:00:00.000Z	54 \| moderate	10.891 \| good	46.463 \| good	32.029 \| good	0.409 \| good	7.688 \| good	0.26 \| good
2025-07-31T05:00:00.000Z	54 \| moderate	10.891 \| good	46.463 \| good	36.855 \| good	0.442 \| good	10.516 \| good	0.299 \| good
2025-07-31T06:00:00.000Z	57 \| moderate	10.392 \| good	68.153 \| fine	36.602 \| good	0.87 \| good	10.609 \| good	0.319 \| good
2025-07-31T07:00:00.000Z	71 \| moderate	20.375 \| fine	57.856 \| fine	21.935 \| good	0.363 \| good	11.615 \| good	0.209 \| good
2025-07-31T07:00:00.000Z	71 \| moderate	20.389 \| fine	63.178 \| fine	18.98 \| good	0.447 \| good	11.802 \| good	0.201 \| good
2025-07-31T02:00:00.000Z	66 \| moderate	16.561 \| fine	73.002 \| fine	32.97 \| good	0.979 \| good	9.211 \| good	0.25 \| good
2025-07-31T03:00:00.000Z	64 \| moderate	16.042 \| fine	71.005 \| fine	32.327 \| good	1.066 \| good	8.698 \| good	0.253 \| good
2025-07-31T04:00:00.000Z	62 \| moderate	15.443 \| fine	69.002 \| fine	31.134 \| good	0.924 \| good	7.035 \| good	0.245 \| good
2025-07-31T05:00:00.000Z	67 \| moderate	18.123 \| fine	80.998 \| fine	26.606 \| good	0.782 \| good	5.371 \| good	0.238 \| good
2025-07-31T06:00:00.000Z	73 \| moderate	21.41 \| fine	94.994 \| fine	24.216 \| good	0.64 \| good	3.707 \| good	0.23 \| good
2025-07-31T07:00:00.000Z	81 \| moderate	24.559 \| fine	106.994 \| fine	24.111 \| good	0.694 \| good	3.57 \| good	0.237 \| good
2025-07-31T08:00:00.000Z	82 \| moderate	25.684 \| fine	111.006 \| fine	22.612 \| good	0.748 \| good	3.432 \| good	0.243 \| good
2025-07-31T09:00:00.000Z	94 \| moderate	31.687 \| fine	136.998 \| fine	20.524 \| good	0.802 \| good	3.295 \| good	0.249 \| good
2025-07-31T10:00:00.000Z	94 \| moderate	31.686 \| fine	136.999 \| fine	20.143 \| good	0.869 \| good	3.746 \| good	0.258 \| good
2025-07-31T11:00:00.000Z	96 \| moderate	32.644 \| fine	140.994 \| fine	25.332 \| good	0.935 \| good	4.198 \| good	0.267 \| good
2025-07-31T12:00:00.000Z	94 \| moderate	32.48 \| fine	140.989 \| fine	27.935 \| good	1.001 \| good	4.649 \| good	0.275 \| good
2025-07-31T13:00:00.000Z	92 \| moderate	30.683 \| fine	132.997 \| fine	29.575 \| good	0.945 \| good	4.097 \| good	0.27 \| good
2025-07-31T14:00:00.000Z	82 \| moderate	26.492 \| fine	114.994 \| fine	28.818 \| good	0.888 \| good	3.546 \| good	0.264 \| good
2025-07-31T15:00:00.000Z	69 \| moderate	19.054 \| fine	84.99 \| fine	28.578 \| good	0.832 \| good	2.994 \| good	0.259 \| good
2025-07-31T16:00:00.000Z	64 \| moderate	16.432 \| fine	72.998 \| fine	33.097 \| good	0.765 \| good	2.642 \| good	0.253 \| good
2025-07-31T17:00:00.000Z	64 \| moderate	15.95 \| fine	71 \| fine	33.045 \| good	0.699 \| good	2.29 \| good	0.248 \| good
2025-07-31T18:00:00.000Z	66 \| moderate	16.875 \| fine	74.999 \| fine	32.885 \| good	0.632 \| good	1.938 \| good	0.242 \| good
2025-07-31T19:00:00.000Z	69 \| moderate	18.843 \| fine	82.998 \| fine	30.877 \| good	0.664 \| good	2.377 \| good	0.244 \| good
2025-07-31T20:00:00.000Z	75 \| moderate	21.811 \| fine	94.994 \| fine	26.902 \| good	0.695 \| good	2.815 \| good	0.246 \| good
2025-07-31T21:00:00.000Z	67 \| moderate	18.123 \| fine	80.983 \| fine	22.528 \| good	0.726 \| good	3.254 \| good	0.248 \| good
2025-07-31T22:00:00.000Z	60 \| moderate	14.183 \| fine	63.002 \| fine	19.993 \| good	0.798 \| good	4.785 \| good	0.257 \| good
2025-07-31T23:00:00.000Z	54 \| moderate	11.447 \| good	50.997 \| good	20.337 \| good	0.871 \| good	6.317 \| good	0.266 \| good
2025-08-01T00:00:00.000Z	52 \| moderate	10.34 \| good	45.995 \| good	21.066 \| good	0.943 \| good	7.849 \| good	0.276 \| good
2025-08-01T01:00:00.000Z	54 \| moderate	10.534 \| good	46.996 \| good	19.71 \| good	1.023 \| good	8.461 \| good	0.281 \| good
2025-08-01T02:00:00.000Z	54 \| moderate	10.696 \| good	47.002 \| good	23.256 \| good	1.104 \| good	9.074 \| good	0.286 \| good
2025-08-01T03:00:00.000Z	56 \| moderate	11.644 \| good	51.002 \| good	23.055 \| good	1.184 \| good	9.686 \| good	0.291 \| good
2025-08-01T04:00:00.000Z	56 \| moderate	11.526 \| good	50.998 \| good	22.827 \| good	1.313 \| good	9.474 \| good	0.29 \| good
2025-08-01T05:00:00.000Z	56 \| moderate	12.17 \| fine	54.996 \| good	22.285 \| good	1.443 \| good	9.261 \| good	0.288 \| good
2025-08-01T06:00:00.000Z	54 \| moderate	10.724 \| good	47.994 \| good	24.082 \| good	1.572 \| good	9.049 \| good	0.287 \| good
2025-08-01T07:00:00.000Z	52 \| moderate	9.592 \| good	43 \| good	24.632 \| good	1.455 \| good	7.614 \| good	0.273 \| good
2025-08-01T08:00:00.000Z	44 \| good	8.342 \| good	36.997 \| good	25.701 \| good	1.337 \| good	6.179 \| good	0.259 \| good
2025-08-01T09:00:00.000Z	38 \| good	7.255 \| good	31.998 \| good	22.901 \| good	1.219 \| good	4.743 \| good	0.245 \| good
2025-08-01T10:00:00.000Z	38 \| good	7.187 \| good	31.997 \| good	20.231 \| good	1.058 \| good	4.905 \| good	0.236 \| good
2025-08-01T11:00:00.000Z	49 \| good	9.331 \| good	41.997 \| good	17.498 \| good	0.897 \| good	5.066 \| good	0.226 \| good
2025-08-01T12:00:00.000Z	52 \| moderate	10.133 \| good	44.996 \| good	17.416 \| good	0.736 \| good	5.227 \| good	0.217 \| good
2025-08-01T13:00:00.000Z	49 \| good	8.58 \| good	37.002 \| good	19.822 \| good	0.735 \| good	5.377 \| good	0.214 \| good
2025-08-01T14:00:00.000Z	33 \| good	6.451 \| good	28.994 \| good	20.654 \| good	0.734 \| good	5.528 \| good	0.211 \| good
2025-08-01T15:00:00.000Z	33 \| good	6.454 \| good	28.995 \| good	21.82 \| good	0.733 \| good	5.679 \| good	0.209 \| good
2025-08-01T16:00:00.000Z	33 \| good	6.476 \| good	28.994 \| good	20.423 \| good	0.732 \| good	5.058 \| good	0.203 \| good
2025-08-01T17:00:00.000Z	33 \| good	6.293 \| good	27.992 \| good	20.032 \| good	0.732 \| good	4.437 \| good	0.198 \| good
2025-08-01T18:00:00.000Z	27 \| good	4.986 \| good	21.002 \| good	21.901 \| good	0.731 \| good	3.816 \| good	0.192 \| good
2025-08-01T19:00:00.000Z	22 \| good	4.48 \| good	19.003 \| good	21.403 \| good	0.724 \| good	3.856 \| good	0.192 \| good
2025-08-01T20:00:00.000Z	27 \| good	5.02 \| good	21.995 \| good	21.876 \| good	0.716 \| good	3.897 \| good	0.192 \| good
2025-08-01T21:00:00.000Z	22 \| good	4.451 \| good	18.999 \| good	19.538 \| good	0.708 \| good	3.937 \| good	0.192 \| good
2025-08-01T22:00:00.000Z	22 \| good	4.004 \| good	17.993 \| good	19.02 \| good	0.726 \| good	4.838 \| good	0.198 \| good
2025-08-01T23:00:00.000Z	22 \| good	4.448 \| good	19.001 \| good	16.822 \| good	0.744 \| good	5.74 \| good	0.204 \| good
2025-08-02T00:00:00.000Z	66 \| moderate	17.051 \| fine	18.478 \| good	35.608 \| good	0.759 \| good	6.618 \| good	0.209 \| good
2025-08-02T01:00:00.000Z	52 \| moderate	10.426 \| good	45.997 \| good	9.767 \| good	0.811 \| good	7.649 \| good	0.217 \| good

Cambridge

Get reliable air quality data to drive your business

Cambridge, Massachusetts air quality map: Track AQI near you

0.26ppm

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 03:00:00 on 2025-07-30.

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 2025-07-30.

What is the current air quality in Cambridge, Massachusetts?

The current air quality in Cambridge, Massachusetts is 52, 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 10.339 μg/m³.

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

The current PM₁₀ concentration at Cambridge, Massachusetts is 43.681 μg/m³.

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

The current carbon monoxide (CO) concentration at Cambridge, Massachusetts is 0.259 ppm.

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

The current sulfur dioxide (SO₂) concentration at Cambridge, Massachusetts is 0.547 ppb.

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

The current ozone (O₃) concentration at Cambridge, Massachusetts is 40.838 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Cambridge, Massachusetts is 7.082 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-07-29T08:00:00.000Z	60 \| moderate	13.924 \| fine	51.966 \| good	20.914 \| good	0.342 \| good	5.724 \| good	0.291 \| good
2025-07-29T09:00:00.000Z	62 \| moderate	15.296 \| fine	64.415 \| fine	21.699 \| good	0.335 \| good	5.549 \| good	0.299 \| good
2025-07-29T10:00:00.000Z	64 \| moderate	15.624 \| fine	66.243 \| fine	24.51 \| good	0.378 \| good	5.087 \| good	0.302 \| good
2025-07-29T11:00:00.000Z	64 \| moderate	16.11 \| fine	67.674 \| fine	21.757 \| good	0.313 \| good	7.03 \| good	0.346 \| good
2025-07-29T12:00:00.000Z	64 \| moderate	16.371 \| fine	69.283 \| fine	21.392 \| good	0.35 \| good	10.048 \| good	0.441 \| good
2025-07-29T13:00:00.000Z	64 \| moderate	16.463 \| fine	69.674 \| fine	20.301 \| good	0.369 \| good	8.557 \| good	0.35 \| good
2025-07-29T14:00:00.000Z	64 \| moderate	16.368 \| fine	68.929 \| fine	30.114 \| good	0.421 \| good	8.636 \| good	0.386 \| good
2025-07-29T15:00:00.000Z	64 \| moderate	16.368 \| fine	69.015 \| fine	33.448 \| good	0.378 \| good	8.284 \| good	0.304 \| good
2025-07-29T16:00:00.000Z	64 \| moderate	16.463 \| fine	70.222 \| fine	40.093 \| good	0.382 \| good	7.309 \| good	0.256 \| good
2025-07-29T17:00:00.000Z	64 \| moderate	16.44 \| fine	70.562 \| fine	45.986 \| good	0.438 \| good	7.255 \| good	0.256 \| good
2025-07-29T18:00:00.000Z	64 \| moderate	16.136 \| fine	68.992 \| fine	50.036 \| good	0.532 \| good	5.75 \| good	0.252 \| good
2025-07-29T19:00:00.000Z	62 \| moderate	15.457 \| fine	66.77 \| fine	52.829 \| good	0.623 \| good	5.692 \| good	0.255 \| good
2025-07-29T20:00:00.000Z	62 \| moderate	14.948 \| fine	64.856 \| fine	51.747 \| good	0.682 \| good	5.161 \| good	0.304 \| good
2025-07-29T21:00:00.000Z	62 \| moderate	14.635 \| fine	63.028 \| fine	51.527 \| good	0.639 \| good	4.34 \| good	0.259 \| good
2025-07-29T22:00:00.000Z	60 \| moderate	14.352 \| fine	60.942 \| fine	47.762 \| good	0.64 \| good	4.046 \| good	0.255 \| good
2025-07-29T23:00:00.000Z	60 \| moderate	13.579 \| fine	58.832 \| fine	44.167 \| good	0.584 \| good	4.151 \| good	0.255 \| good
2025-07-30T00:00:00.000Z	56 \| moderate	12.35 \| fine	53.211 \| good	41.232 \| good	0.531 \| good	4.578 \| good	0.263 \| good
2025-07-30T01:00:00.000Z	54 \| moderate	10.782 \| good	45.817 \| good	42.092 \| good	0.473 \| good	6.717 \| good	0.212 \| good
2025-07-30T02:00:00.000Z	52 \| moderate	10.311 \| good	44.094 \| good	34.903 \| good	0.307 \| good	7.682 \| good	0.219 \| good
2025-07-30T03:00:00.000Z	69 \| moderate	18.88 \| fine	83.136 \| fine	19.127 \| good	0.903 \| good	13.408 \| good	0.283 \| good
2025-07-30T04:00:00.000Z	54 \| moderate	10.742 \| good	45.806 \| good	35.455 \| good	0.321 \| good	11.932 \| good	0.308 \| good
2025-07-30T05:00:00.000Z	54 \| moderate	10.742 \| good	45.806 \| good	40.753 \| good	0.373 \| good	12.714 \| good	0.338 \| good
2025-07-30T06:00:00.000Z	49 \| good	8.804 \| good	38.052 \| good	37.935 \| good	0.306 \| good	15.064 \| good	0.281 \| good
2025-07-30T07:00:00.000Z	44 \| good	8.152 \| good	47.545 \| good	22.702 \| good	0.518 \| good	15.321 \| good	0.344 \| good
2025-07-30T08:00:00.000Z	56 \| moderate	11.558 \| good	48.225 \| good	21.742 \| good	0.534 \| good	16.599 \| good	0.34 \| good
2025-07-30T09:00:00.000Z	54 \| moderate	11.003 \| good	46.396 \| good	15.401 \| good	0.434 \| good	8.914 \| good	0.217 \| good
2025-07-30T10:00:00.000Z	52 \| moderate	10.228 \| good	43.713 \| good	19.151 \| good	0.4 \| good	9.099 \| good	0.224 \| good
2025-07-30T11:00:00.000Z	52 \| moderate	9.611 \| good	41.026 \| good	16.946 \| good	0.413 \| good	11.339 \| good	0.228 \| good
2025-07-30T12:00:00.000Z	49 \| good	9.345 \| good	39.656 \| good	17.624 \| good	0.429 \| good	11.322 \| good	0.318 \| good
2025-07-30T13:00:00.000Z	52 \| moderate	10.094 \| good	42.975 \| good	25.205 \| good	0.445 \| good	10.996 \| good	0.3 \| good
2025-07-30T14:00:00.000Z	54 \| moderate	11.157 \| good	48.377 \| good	28.873 \| good	0.547 \| good	9.298 \| good	0.257 \| good
2025-07-30T15:00:00.000Z	54 \| moderate	11.127 \| good	48.269 \| good	28.786 \| good	0.392 \| good	5.516 \| good	0.226 \| good
2025-07-30T16:00:00.000Z	54 \| moderate	11.295 \| good	48.225 \| good	35.658 \| good	0.44 \| good	6.515 \| good	0.213 \| good
2025-07-30T17:00:00.000Z	54 \| moderate	11.458 \| good	49.027 \| good	40.128 \| good	0.672 \| good	9.511 \| good	0.257 \| good
2025-07-30T18:00:00.000Z	56 \| moderate	11.737 \| good	51.719 \| good	38.729 \| good	0.579 \| good	8.077 \| good	0.251 \| good
2025-07-30T19:00:00.000Z	56 \| moderate	11.96 \| good	51.852 \| good	48.928 \| good	0.589 \| good	7.095 \| good	0.261 \| good
2025-07-30T20:00:00.000Z	56 \| moderate	12.093 \| good	52.332 \| good	48.135 \| good	0.54 \| good	6.813 \| good	0.261 \| good
2025-07-30T21:00:00.000Z	56 \| moderate	12.085 \| good	51.986 \| good	41.674 \| good	0.602 \| good	7.562 \| good	0.303 \| good
2025-07-30T22:00:00.000Z	56 \| moderate	12.026 \| good	51.963 \| good	41.33 \| good	0.513 \| good	7.968 \| good	0.343 \| good
2025-07-30T23:00:00.000Z	56 \| moderate	11.853 \| good	51.767 \| good	35.819 \| good	0.669 \| good	11.353 \| good	0.263 \| good
2025-07-31T00:00:00.000Z	56 \| moderate	11.54 \| good	50.262 \| good	38.46 \| good	0.46 \| good	7.353 \| good	0.263 \| good
2025-07-31T01:00:00.000Z	54 \| moderate	11.475 \| good	49.22 \| good	41.541 \| good	0.42 \| good	13.469 \| good	0.351 \| good
2025-07-31T02:00:00.000Z	54 \| moderate	11.347 \| good	48.591 \| good	37.437 \| good	0.427 \| good	10.734 \| good	0.304 \| good
2025-07-31T03:00:00.000Z	54 \| moderate	10.891 \| good	46.463 \| good	30.987 \| good	0.419 \| good	7.683 \| good	0.26 \| good
2025-07-31T04:00:00.000Z	54 \| moderate	10.891 \| good	46.463 \| good	32.029 \| good	0.409 \| good	7.688 \| good	0.26 \| good
2025-07-31T05:00:00.000Z	54 \| moderate	10.891 \| good	46.463 \| good	36.855 \| good	0.442 \| good	10.516 \| good	0.299 \| good
2025-07-31T06:00:00.000Z	57 \| moderate	10.392 \| good	68.153 \| fine	36.602 \| good	0.87 \| good	10.609 \| good	0.319 \| good
2025-07-31T07:00:00.000Z	71 \| moderate	20.375 \| fine	57.856 \| fine	21.935 \| good	0.363 \| good	11.615 \| good	0.209 \| good
2025-07-31T07:00:00.000Z	71 \| moderate	20.389 \| fine	63.178 \| fine	18.98 \| good	0.447 \| good	11.802 \| good	0.201 \| good
2025-07-31T02:00:00.000Z	66 \| moderate	16.561 \| fine	73.002 \| fine	32.97 \| good	0.979 \| good	9.211 \| good	0.25 \| good
2025-07-31T03:00:00.000Z	64 \| moderate	16.042 \| fine	71.005 \| fine	32.327 \| good	1.066 \| good	8.698 \| good	0.253 \| good
2025-07-31T04:00:00.000Z	62 \| moderate	15.443 \| fine	69.002 \| fine	31.134 \| good	0.924 \| good	7.035 \| good	0.245 \| good
2025-07-31T05:00:00.000Z	67 \| moderate	18.123 \| fine	80.998 \| fine	26.606 \| good	0.782 \| good	5.371 \| good	0.238 \| good
2025-07-31T06:00:00.000Z	73 \| moderate	21.41 \| fine	94.994 \| fine	24.216 \| good	0.64 \| good	3.707 \| good	0.23 \| good
2025-07-31T07:00:00.000Z	81 \| moderate	24.559 \| fine	106.994 \| fine	24.111 \| good	0.694 \| good	3.57 \| good	0.237 \| good
2025-07-31T08:00:00.000Z	82 \| moderate	25.684 \| fine	111.006 \| fine	22.612 \| good	0.748 \| good	3.432 \| good	0.243 \| good
2025-07-31T09:00:00.000Z	94 \| moderate	31.687 \| fine	136.998 \| fine	20.524 \| good	0.802 \| good	3.295 \| good	0.249 \| good
2025-07-31T10:00:00.000Z	94 \| moderate	31.686 \| fine	136.999 \| fine	20.143 \| good	0.869 \| good	3.746 \| good	0.258 \| good
2025-07-31T11:00:00.000Z	96 \| moderate	32.644 \| fine	140.994 \| fine	25.332 \| good	0.935 \| good	4.198 \| good	0.267 \| good
2025-07-31T12:00:00.000Z	94 \| moderate	32.48 \| fine	140.989 \| fine	27.935 \| good	1.001 \| good	4.649 \| good	0.275 \| good
2025-07-31T13:00:00.000Z	92 \| moderate	30.683 \| fine	132.997 \| fine	29.575 \| good	0.945 \| good	4.097 \| good	0.27 \| good
2025-07-31T14:00:00.000Z	82 \| moderate	26.492 \| fine	114.994 \| fine	28.818 \| good	0.888 \| good	3.546 \| good	0.264 \| good
2025-07-31T15:00:00.000Z	69 \| moderate	19.054 \| fine	84.99 \| fine	28.578 \| good	0.832 \| good	2.994 \| good	0.259 \| good
2025-07-31T16:00:00.000Z	64 \| moderate	16.432 \| fine	72.998 \| fine	33.097 \| good	0.765 \| good	2.642 \| good	0.253 \| good
2025-07-31T17:00:00.000Z	64 \| moderate	15.95 \| fine	71 \| fine	33.045 \| good	0.699 \| good	2.29 \| good	0.248 \| good
2025-07-31T18:00:00.000Z	66 \| moderate	16.875 \| fine	74.999 \| fine	32.885 \| good	0.632 \| good	1.938 \| good	0.242 \| good
2025-07-31T19:00:00.000Z	69 \| moderate	18.843 \| fine	82.998 \| fine	30.877 \| good	0.664 \| good	2.377 \| good	0.244 \| good
2025-07-31T20:00:00.000Z	75 \| moderate	21.811 \| fine	94.994 \| fine	26.902 \| good	0.695 \| good	2.815 \| good	0.246 \| good
2025-07-31T21:00:00.000Z	67 \| moderate	18.123 \| fine	80.983 \| fine	22.528 \| good	0.726 \| good	3.254 \| good	0.248 \| good
2025-07-31T22:00:00.000Z	60 \| moderate	14.183 \| fine	63.002 \| fine	19.993 \| good	0.798 \| good	4.785 \| good	0.257 \| good
2025-07-31T23:00:00.000Z	54 \| moderate	11.447 \| good	50.997 \| good	20.337 \| good	0.871 \| good	6.317 \| good	0.266 \| good
2025-08-01T00:00:00.000Z	52 \| moderate	10.34 \| good	45.995 \| good	21.066 \| good	0.943 \| good	7.849 \| good	0.276 \| good
2025-08-01T01:00:00.000Z	54 \| moderate	10.534 \| good	46.996 \| good	19.71 \| good	1.023 \| good	8.461 \| good	0.281 \| good
2025-08-01T02:00:00.000Z	54 \| moderate	10.696 \| good	47.002 \| good	23.256 \| good	1.104 \| good	9.074 \| good	0.286 \| good
2025-08-01T03:00:00.000Z	56 \| moderate	11.644 \| good	51.002 \| good	23.055 \| good	1.184 \| good	9.686 \| good	0.291 \| good
2025-08-01T04:00:00.000Z	56 \| moderate	11.526 \| good	50.998 \| good	22.827 \| good	1.313 \| good	9.474 \| good	0.29 \| good
2025-08-01T05:00:00.000Z	56 \| moderate	12.17 \| fine	54.996 \| good	22.285 \| good	1.443 \| good	9.261 \| good	0.288 \| good
2025-08-01T06:00:00.000Z	54 \| moderate	10.724 \| good	47.994 \| good	24.082 \| good	1.572 \| good	9.049 \| good	0.287 \| good
2025-08-01T07:00:00.000Z	52 \| moderate	9.592 \| good	43 \| good	24.632 \| good	1.455 \| good	7.614 \| good	0.273 \| good
2025-08-01T08:00:00.000Z	44 \| good	8.342 \| good	36.997 \| good	25.701 \| good	1.337 \| good	6.179 \| good	0.259 \| good
2025-08-01T09:00:00.000Z	38 \| good	7.255 \| good	31.998 \| good	22.901 \| good	1.219 \| good	4.743 \| good	0.245 \| good
2025-08-01T10:00:00.000Z	38 \| good	7.187 \| good	31.997 \| good	20.231 \| good	1.058 \| good	4.905 \| good	0.236 \| good
2025-08-01T11:00:00.000Z	49 \| good	9.331 \| good	41.997 \| good	17.498 \| good	0.897 \| good	5.066 \| good	0.226 \| good
2025-08-01T12:00:00.000Z	52 \| moderate	10.133 \| good	44.996 \| good	17.416 \| good	0.736 \| good	5.227 \| good	0.217 \| good
2025-08-01T13:00:00.000Z	49 \| good	8.58 \| good	37.002 \| good	19.822 \| good	0.735 \| good	5.377 \| good	0.214 \| good
2025-08-01T14:00:00.000Z	33 \| good	6.451 \| good	28.994 \| good	20.654 \| good	0.734 \| good	5.528 \| good	0.211 \| good
2025-08-01T15:00:00.000Z	33 \| good	6.454 \| good	28.995 \| good	21.82 \| good	0.733 \| good	5.679 \| good	0.209 \| good
2025-08-01T16:00:00.000Z	33 \| good	6.476 \| good	28.994 \| good	20.423 \| good	0.732 \| good	5.058 \| good	0.203 \| good
2025-08-01T17:00:00.000Z	33 \| good	6.293 \| good	27.992 \| good	20.032 \| good	0.732 \| good	4.437 \| good	0.198 \| good
2025-08-01T18:00:00.000Z	27 \| good	4.986 \| good	21.002 \| good	21.901 \| good	0.731 \| good	3.816 \| good	0.192 \| good
2025-08-01T19:00:00.000Z	22 \| good	4.48 \| good	19.003 \| good	21.403 \| good	0.724 \| good	3.856 \| good	0.192 \| good
2025-08-01T20:00:00.000Z	27 \| good	5.02 \| good	21.995 \| good	21.876 \| good	0.716 \| good	3.897 \| good	0.192 \| good
2025-08-01T21:00:00.000Z	22 \| good	4.451 \| good	18.999 \| good	19.538 \| good	0.708 \| good	3.937 \| good	0.192 \| good
2025-08-01T22:00:00.000Z	22 \| good	4.004 \| good	17.993 \| good	19.02 \| good	0.726 \| good	4.838 \| good	0.198 \| good
2025-08-01T23:00:00.000Z	22 \| good	4.448 \| good	19.001 \| good	16.822 \| good	0.744 \| good	5.74 \| good	0.204 \| good
2025-08-02T00:00:00.000Z	66 \| moderate	17.051 \| fine	18.478 \| good	35.608 \| good	0.759 \| good	6.618 \| good	0.209 \| good
2025-08-02T01:00:00.000Z	52 \| moderate	10.426 \| good	45.997 \| good	9.767 \| good	0.811 \| good	7.649 \| good	0.217 \| 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)

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Somerville, Massachusetts

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Boston, Massachusetts

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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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