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

The current PM10 concentration at Dedham, Massachusetts is 15.248 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Dedham, Massachusetts is 0.548 ppb.

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

The current ozone (O3) concentration at Dedham, Massachusetts is 43.189 ppm.

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

The current nitrogen dioxide (NO2) concentration at Dedham, Massachusetts is 2.27 ppb.

Dedham, Massachusetts live air quality index now

Q: What is the current concentration of PM2.5 in Dedham, Massachusetts?

The current PM2.5 concentration at Dedham, Massachusetts is 4.13 μg/m3.

Stay updated with real-time air quality in Dedham, 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

Dedham, Massachusetts

Last updated: ... (Local time)

Major air pollutants in Dedham, Massachusetts

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

4.13 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

15.25 μg/m³

155

255

425

605+

Ozone (O₃)

43.19 ppb

201

201+

Sulfur Dioxide (SO₂)

0.55 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

2.27 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.16 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

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Dedham, Massachusetts

Scroll To Air Quality Map

Track live Dedham, Massachusetts air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-03-27T23:00:00.000Z	37 \| good	2.831 \| good	9.356 \| good	40.261 \| good	0.547 \| good	2.432 \| good	0.213 \| good
2026-03-28T00:00:00.000Z	38 \| good	3.76 \| good	19.005 \| good	41.102 \| good	0.481 \| good	3.632 \| good	0.188 \| good
2026-03-28T01:00:00.000Z	36 \| good	4.221 \| good	21.5 \| good	39.302 \| good	0.313 \| good	5.13 \| good	0.175 \| good
2026-03-28T02:00:00.000Z	35 \| good	4.229 \| good	20.232 \| good	38.207 \| good	0.556 \| good	5.325 \| good	0.168 \| good
2026-03-28T03:00:00.000Z	35 \| good	4.422 \| good	18.877 \| good	37.516 \| good	0.552 \| good	6.89 \| good	0.227 \| good
2026-03-28T04:00:00.000Z	35 \| good	4.17 \| good	19.517 \| good	37.505 \| good	0.546 \| good	7.089 \| good	0.285 \| good
2026-03-28T05:00:00.000Z	34 \| good	4.124 \| good	18.376 \| good	37.068 \| good	0.296 \| good	6.52 \| good	0.206 \| good
2026-03-28T06:00:00.000Z	32 \| good	4.09 \| good	18.265 \| good	35.246 \| good	0.308 \| good	6.518 \| good	0.213 \| good
2026-03-28T07:00:00.000Z	30 \| good	4.031 \| good	17.672 \| good	32.28 \| good	0.538 \| good	6.466 \| good	0.16 \| good
2026-03-28T08:00:00.000Z	32 \| good	3.944 \| good	13.826 \| good	35.42 \| good	0.458 \| good	5.996 \| good	0.16 \| good
2026-03-28T09:00:00.000Z	32 \| good	3.985 \| good	13.75 \| good	35.061 \| good	0.453 \| good	5.37 \| good	0.113 \| good
2026-03-28T10:00:00.000Z	32 \| good	3.883 \| good	16.784 \| good	35.011 \| good	0.502 \| good	5.416 \| good	0.16 \| good
2026-03-28T11:00:00.000Z	31 \| good	4.049 \| good	16.698 \| good	34.488 \| good	0.499 \| good	5.423 \| good	0.168 \| good
2026-03-28T12:00:00.000Z	32 \| good	4.112 \| good	15.331 \| good	34.736 \| good	0.442 \| good	5.889 \| good	0.173 \| good
2026-03-28T13:00:00.000Z	31 \| good	4.125 \| good	15.063 \| good	33.687 \| good	0.449 \| good	5.872 \| good	0.173 \| good
2026-03-28T14:00:00.000Z	31 \| good	4.297 \| good	16.727 \| good	33.946 \| good	0.48 \| good	2.952 \| good	0.168 \| good
2026-03-28T15:00:00.000Z	32 \| good	4.36 \| good	15.974 \| good	35.174 \| good	0.522 \| good	2.697 \| good	0.168 \| good
2026-03-28T16:00:00.000Z	34 \| good	4.42 \| good	17.707 \| good	36.74 \| good	0.491 \| good	1.793 \| good	0.168 \| good
2026-03-28T17:00:00.000Z	35 \| good	4.412 \| good	15.982 \| good	38.499 \| good	0.467 \| good	1.822 \| good	0.168 \| good
2026-03-28T18:00:00.000Z	36 \| good	4.524 \| good	15.903 \| good	39.405 \| good	0.537 \| good	1.707 \| good	0.168 \| good
2026-03-28T19:00:00.000Z	39 \| good	4.378 \| good	18.556 \| good	41.656 \| good	0.494 \| good	1.528 \| good	0.168 \| good
2026-03-28T20:00:00.000Z	38 \| good	5.391 \| good	23.581 \| good	40.596 \| good	0.544 \| good	1.658 \| good	0.168 \| good
2026-03-28T21:00:00.000Z	38 \| good	5.31 \| good	16.706 \| good	41.042 \| good	0.556 \| good	2.041 \| good	0.175 \| good
2026-03-28T22:00:00.000Z	38 \| good	4.701 \| good	12.824 \| good	40.778 \| good	0.516 \| good	1.959 \| good	0.168 \| good
2026-03-28T23:00:00.000Z	37 \| good	4.097 \| good	16.985 \| good	39.999 \| good	0.461 \| good	2.222 \| good	0.214 \| good
2026-03-29T00:00:00.000Z	36 \| good	4.067 \| good	12.525 \| good	39.234 \| good	0.537 \| good	2.527 \| good	0.214 \| good
2026-03-29T01:00:00.000Z	35 \| good	4.051 \| good	15.38 \| good	38.366 \| good	0.572 \| good	2.808 \| good	0.268 \| good
2026-03-29T02:00:00.000Z	35 \| good	3.928 \| good	16.461 \| good	37.815 \| good	0.573 \| good	3.855 \| good	0.221 \| good
2026-03-29T03:00:00.000Z	29 \| good	3.155 \| good	13.875 \| good	30.776 \| good	0.793 \| good	8.766 \| good	0.239 \| good
2026-03-29T04:00:00.000Z	35 \| good	3.955 \| good	14.663 \| good	37.908 \| good	0.536 \| good	3.728 \| good	0.207 \| good
2026-03-29T05:00:00.000Z	35 \| good	3.79 \| good	15.841 \| good	37.514 \| good	0.541 \| good	2.882 \| good	0.207 \| good
2026-03-29T06:00:00.000Z	35 \| good	3.794 \| good	13.916 \| good	37.672 \| good	0.541 \| good	2.962 \| good	0.207 \| good
2026-03-29T07:00:00.000Z	34 \| good	3.719 \| good	14.042 \| good	37.012 \| good	0.539 \| good	2.931 \| good	0.168 \| good
2026-03-29T08:00:00.000Z	34 \| good	3.457 \| good	14.749 \| good	36.942 \| good	0.525 \| good	3.892 \| good	0.207 \| good
2026-03-29T09:00:00.000Z	33 \| good	3.522 \| good	15.417 \| good	36.075 \| good	0.506 \| good	3.856 \| good	0.207 \| good
2026-03-29T10:00:00.000Z	31 \| good	3.46 \| good	12.971 \| good	34.288 \| good	0.495 \| good	6.702 \| good	0.215 \| good
2026-03-29T11:00:00.000Z	31 \| good	3.505 \| good	13.982 \| good	33.428 \| good	0.504 \| good	7.495 \| good	0.229 \| good
2026-03-29T12:00:00.000Z	31 \| good	3.715 \| good	13.46 \| good	32.989 \| good	0.459 \| good	7.208 \| good	0.276 \| good
2026-03-29T13:00:00.000Z	31 \| good	3.705 \| good	14.729 \| good	32.695 \| good	0.462 \| good	6.915 \| good	0.246 \| good
2026-03-29T14:00:00.000Z	31 \| good	4.176 \| good	16.188 \| good	33.557 \| good	0.5 \| good	2.49 \| good	0.175 \| good
2026-03-29T15:00:00.000Z	33 \| good	4.301 \| good	16.647 \| good	35.695 \| good	0.501 \| good	1.782 \| good	0.168 \| good
2026-03-29T16:00:00.000Z	34 \| good	4.426 \| good	18.253 \| good	36.865 \| good	0.509 \| good	1.583 \| good	0.168 \| good
2026-03-29T17:00:00.000Z	38 \| good	4.429 \| good	16.208 \| good	40.932 \| good	0.451 \| good	1.54 \| good	0.168 \| good
2026-03-29T18:00:00.000Z	38 \| good	4.183 \| good	17.318 \| good	40.878 \| good	0.453 \| good	1.786 \| good	0.168 \| good
2026-03-29T19:00:00.000Z	39 \| good	4.078 \| good	13.467 \| good	42.277 \| good	0.454 \| good	1.697 \| good	0.168 \| good
2026-03-29T20:00:00.000Z	39 \| good	4.124 \| good	17.665 \| good	42.097 \| good	0.526 \| good	1.507 \| good	0.168 \| good
2026-03-29T21:00:00.000Z	40 \| good	4.188 \| good	15.29 \| good	43.128 \| good	0.512 \| good	1.734 \| good	0.168 \| good
2026-03-29T22:00:00.000Z	40 \| good	4.13 \| good	15.248 \| good	43.189 \| good	0.548 \| good	2.27 \| good	0.161 \| good
2026-03-29T23:00:00.000Z	38 \| good	5.137 \| good	22.311 \| good	40.872 \| good	1.005 \| good	5.574 \| good	0.183 \| good
2026-03-30T00:00:00.000Z	38 \| good	4.48 \| good	19.427 \| good	40.866 \| good	1.099 \| good	6.694 \| good	0.193 \| good
2026-03-30T01:00:00.000Z	38 \| good	5.975 \| good	26.491 \| good	40.78 \| good	1.172 \| good	6.059 \| good	0.191 \| good
2026-03-30T02:00:00.000Z	38 \| good	6.759 \| good	30.07 \| good	39.417 \| good	1.245 \| good	5.424 \| good	0.189 \| good
2026-03-30T03:00:00.000Z	38 \| good	6.871 \| good	30.47 \| good	36.926 \| good	1.318 \| good	4.788 \| good	0.187 \| good
2026-03-30T04:00:00.000Z	34 \| good	5.999 \| good	27 \| good	36.568 \| good	1.165 \| good	4.076 \| good	0.178 \| good
2026-03-30T05:00:00.000Z	33 \| good	6.004 \| good	26.905 \| good	35.284 \| good	1.011 \| good	3.364 \| good	0.17 \| good
2026-03-30T06:00:00.000Z	33 \| good	6.094 \| good	27.036 \| good	34.783 \| good	0.857 \| good	2.651 \| good	0.162 \| good
2026-03-30T07:00:00.000Z	36 \| good	5.575 \| good	23.925 \| good	38.723 \| good	0.763 \| good	2.338 \| good	0.157 \| good
2026-03-30T08:00:00.000Z	35 \| good	4.928 \| good	21.419 \| good	37.503 \| good	0.669 \| good	2.024 \| good	0.152 \| good
2026-03-30T09:00:00.000Z	31 \| good	4.882 \| good	21.126 \| good	33.998 \| good	0.575 \| good	1.711 \| good	0.146 \| good
2026-03-30T10:00:00.000Z	29 \| good	1.587 \| good	6.471 \| good	30.589 \| good	0.619 \| good	2.405 \| good	0.154 \| good
2026-03-30T11:00:00.000Z	29 \| good	0.352 \| good	1.445 \| good	30.731 \| good	0.663 \| good	3.099 \| good	0.163 \| good
2026-03-30T12:00:00.000Z	29 \| good	2.075 \| good	8.412 \| good	31.414 \| good	0.708 \| good	3.793 \| good	0.171 \| good
2026-03-30T13:00:00.000Z	29 \| good	3.606 \| good	15.834 \| good	31.218 \| good	0.881 \| good	3.953 \| good	0.181 \| good
2026-03-30T14:00:00.000Z	33 \| good	5.868 \| good	25.562 \| good	35.414 \| good	1.055 \| good	4.113 \| good	0.192 \| good
2026-03-30T15:00:00.000Z	35 \| good	5.583 \| good	23.914 \| good	37.738 \| good	1.229 \| good	4.274 \| good	0.202 \| good
2026-03-30T16:00:00.000Z	38 \| good	6.818 \| good	30.074 \| good	36.801 \| good	1.427 \| good	4.449 \| good	0.2 \| good
2026-03-30T17:00:00.000Z	44 \| good	7.778 \| good	34.045 \| good	35.094 \| good	1.626 \| good	4.625 \| good	0.198 \| good
2026-03-30T18:00:00.000Z	52 \| moderate	10.014 \| good	44.606 \| good	37.319 \| good	1.824 \| good	4.801 \| good	0.196 \| good
2026-03-30T19:00:00.000Z	54 \| moderate	10.848 \| good	48 \| good	35.911 \| good	1.798 \| good	5.303 \| good	0.193 \| good
2026-03-30T20:00:00.000Z	54 \| moderate	11.374 \| good	50.204 \| good	36.378 \| good	1.771 \| good	5.804 \| good	0.189 \| good
2026-03-30T21:00:00.000Z	54 \| moderate	10.761 \| good	47.971 \| good	34.138 \| good	1.745 \| good	6.306 \| good	0.185 \| good
2026-03-30T22:00:00.000Z	44 \| good	7.723 \| good	33.884 \| good	33.817 \| good	1.747 \| good	7.074 \| good	0.188 \| good
2026-03-30T23:00:00.000Z	44 \| good	8.249 \| good	36.232 \| good	27.308 \| good	1.748 \| good	7.841 \| good	0.19 \| good
2026-03-31T00:00:00.000Z	44 \| good	8.062 \| good	35.241 \| good	21.765 \| good	1.749 \| good	8.609 \| good	0.193 \| good
2026-03-31T01:00:00.000Z	49 \| good	8.774 \| good	38.61 \| good	22.835 \| good	1.832 \| good	8.352 \| good	0.192 \| good
2026-03-31T02:00:00.000Z	56 \| moderate	12.438 \| fine	56.249 \| fine	28.445 \| good	1.914 \| good	8.096 \| good	0.191 \| good
2026-03-31T03:00:00.000Z	60 \| moderate	13.731 \| fine	61.759 \| fine	25.605 \| good	1.997 \| good	7.839 \| good	0.191 \| good
2026-03-31T04:00:00.000Z	58 \| moderate	12.871 \| fine	57.756 \| fine	28.45 \| good	2.03 \| good	7.359 \| good	0.19 \| good
2026-03-31T05:00:00.000Z	54 \| moderate	11.19 \| good	49.683 \| good	32.932 \| good	2.063 \| good	6.879 \| good	0.19 \| good
2026-03-31T06:00:00.000Z	58 \| moderate	12.598 \| fine	12.932 \| good	39.197 \| good	2.1 \| good	6.409 \| good	0.191 \| good
2026-03-31T07:00:00.000Z	56 \| moderate	11.867 \| good	52.614 \| good	22.804 \| good	1.975 \| good	6.053 \| good	0.186 \| good
2026-03-31T08:00:00.000Z	58 \| moderate	12.575 \| fine	56.957 \| fine	22.271 \| good	1.853 \| good	5.708 \| good	0.183 \| good
2026-03-31T09:00:00.000Z	60 \| moderate	13.775 \| fine	61.706 \| fine	14.617 \| good	1.732 \| good	5.362 \| good	0.179 \| good
2026-03-31T10:00:00.000Z	38 \| good	6.78 \| good	30.054 \| good	29.4 \| good	1.594 \| good	6.294 \| good	0.179 \| good
2026-03-31T11:00:00.000Z	33 \| good	5.776 \| good	25.075 \| good	27.842 \| good	1.456 \| good	7.226 \| good	0.18 \| good
2026-03-31T12:00:00.000Z	52 \| moderate	9.933 \| good	10.389 \| good	35.836 \| good	1.326 \| good	8.186 \| good	0.181 \| good
2026-03-31T13:00:00.000Z	52 \| moderate	10.148 \| good	10.492 \| good	36.252 \| good	1.34 \| good	7.542 \| good	0.18 \| good
2026-03-31T14:00:00.000Z	52 \| moderate	9.79 \| good	10.079 \| good	36.668 \| good	1.355 \| good	6.898 \| good	0.179 \| good
2026-03-31T15:00:00.000Z	44 \| good	8.2 \| good	8.571 \| good	37.084 \| good	1.369 \| good	6.254 \| good	0.179 \| good
2026-03-31T16:00:00.000Z	44 \| good	8.377 \| good	8.831 \| good	38.798 \| good	1.369 \| good	5.875 \| good	0.178 \| good
2026-03-31T17:00:00.000Z	52 \| moderate	9.94 \| good	44.12 \| good	31.911 \| good	1.378 \| good	5.501 \| good	0.177 \| good
2026-03-31T18:00:00.000Z	49 \| good	9.428 \| good	10.038 \| good	42.227 \| good	1.368 \| good	5.118 \| good	0.176 \| good
2026-03-31T19:00:00.000Z	52 \| moderate	9.547 \| good	10.203 \| good	41.504 \| good	1.321 \| good	5.821 \| good	0.181 \| good
2026-03-31T20:00:00.000Z	52 \| moderate	9.509 \| good	10.256 \| good	40.782 \| good	1.273 \| good	6.524 \| good	0.187 \| good
2026-03-31T21:00:00.000Z	52 \| moderate	9.699 \| good	10.604 \| good	40.059 \| good	1.226 \| good	7.227 \| good	0.192 \| good
2026-03-31T22:00:00.000Z	49 \| good	8.861 \| good	10.133 \| good	38.505 \| good	1.12 \| good	7.952 \| good	0.196 \| good

Dedham

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Dedham, Massachusetts air quality map: Track AQI near you

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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 Dedham, Massachusetts updated?

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

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

The worst air quality in Dedham, Massachusetts in the last 24 hours was observed at 09:00:00 on 2026-03-29.

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

In the last 24 hrs, the best air quality in Dedham, Massachusetts was observed at 03:00:00 on 2026-03-29.

What is the current air quality in Dedham, Massachusetts?

The current air quality in Dedham, Massachusetts is 40, categorized as Good based on real-time data.

What pollutant is the most common in Dedham, Massachusetts?

The most common pollutant in Dedham, Massachusetts is O3.

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

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

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

The current PM_2.5 concentration at Dedham, Massachusetts is 4.13 μg/m³.

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

The current PM₁₀ concentration at Dedham, Massachusetts is 15.248 μg/m³.

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

The current carbon monoxide (CO) concentration at Dedham, Massachusetts is 0.161 ppm.

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

The current sulfur dioxide (SO₂) concentration at Dedham, Massachusetts is 0.548 ppb.

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

The current ozone (O₃) concentration at Dedham, Massachusetts is 43.189 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Dedham, Massachusetts is 2.27 ppb.

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