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

The current PM10 concentration at Medford, Massachusetts is 37.468 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Medford, Massachusetts is 0.481 ppb.

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

The current ozone (O3) concentration at Medford, Massachusetts is 24.022 ppm.

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

The current nitrogen dioxide (NO2) concentration at Medford, Massachusetts is 25.88 ppb.

Medford, Massachusetts live air quality index now

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

The current PM2.5 concentration at Medford, Massachusetts is 7.279 μg/m3.

Stay updated with real-time air quality in Medford, 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

Medford, Massachusetts

Last updated: ... (Local time)

Major air pollutants in Medford, Massachusetts

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

7.28 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

37.47 μg/m³

155

255

425

605+

Ozone (O₃)

24.02 ppb

201

201+

Sulfur Dioxide (SO₂)

0.48 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

25.88 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.43 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Medford, Massachusetts

Get Live Pollen Counts

Medford, Massachusetts

Scroll To Air Quality Map

Track live Medford, Massachusetts air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-12-27T00:00:00.000Z	27 \| good	4.53 \| good	19.244 \| good	20.483 \| good	0.452 \| good	19.956 \| good	0.376 \| good
2025-12-27T01:00:00.000Z	27 \| good	4.905 \| good	20.658 \| good	22.293 \| good	0.451 \| good	19.184 \| good	0.377 \| good
2025-12-27T02:00:00.000Z	27 \| good	5.085 \| good	21.4 \| good	21.925 \| good	0.443 \| good	21.992 \| good	0.377 \| good
2025-12-27T03:00:00.000Z	27 \| good	5.355 \| good	22.339 \| good	17.155 \| good	0.435 \| good	22.913 \| good	0.377 \| good
2025-12-27T04:00:00.000Z	33 \| good	5.516 \| good	23.352 \| good	20.074 \| good	0.439 \| good	20.209 \| good	0.377 \| good
2025-12-27T05:00:00.000Z	33 \| good	5.691 \| good	23.05 \| good	21.879 \| good	0.443 \| good	19.891 \| good	0.287 \| good
2025-12-27T06:00:00.000Z	33 \| good	5.515 \| good	22.232 \| good	20.688 \| good	0.442 \| good	18.817 \| good	0.242 \| good
2025-12-27T07:00:00.000Z	33 \| good	5.515 \| good	22.232 \| good	21.019 \| good	0.447 \| good	18.889 \| good	0.242 \| good
2025-12-27T08:00:00.000Z	27 \| good	5.376 \| good	21.315 \| good	19.945 \| good	0.451 \| good	19.439 \| good	0.242 \| good
2025-12-27T09:00:00.000Z	27 \| good	4.923 \| good	19.695 \| good	20.183 \| good	0.46 \| good	17.063 \| good	0.2 \| good
2025-12-27T10:00:00.000Z	27 \| good	4.779 \| good	19.613 \| good	23.275 \| good	0.464 \| good	14.153 \| good	0.2 \| good
2025-12-27T11:00:00.000Z	22 \| good	4.024 \| good	15.959 \| good	21.456 \| good	0.468 \| good	12.303 \| good	0.2 \| good
2025-12-27T12:00:00.000Z	23 \| good	4.024 \| good	15.959 \| good	24.576 \| good	0.463 \| good	12.256 \| good	0.2 \| good
2025-12-27T13:00:00.000Z	24 \| good	3.519 \| good	14.614 \| good	25.631 \| good	0.461 \| good	12.098 \| good	0.2 \| good
2025-12-27T14:00:00.000Z	27 \| good	3.164 \| good	12.727 \| good	28.969 \| good	0.453 \| good	13.309 \| good	0.245 \| good
2025-12-27T15:00:00.000Z	25 \| good	3.087 \| good	12.712 \| good	27.406 \| good	0.451 \| good	12.12 \| good	0.245 \| good
2025-12-27T16:00:00.000Z	27 \| good	3.083 \| good	12.607 \| good	28.511 \| good	0.444 \| good	11.681 \| good	0.248 \| good
2025-12-27T17:00:00.000Z	27 \| good	3.182 \| good	12.789 \| good	28.633 \| good	0.443 \| good	11.9 \| good	0.248 \| good
2025-12-27T18:00:00.000Z	27 \| good	3.282 \| good	13.153 \| good	28.831 \| good	0.454 \| good	11.256 \| good	0.248 \| good
2025-12-27T19:00:00.000Z	28 \| good	3.335 \| good	13.336 \| good	30.195 \| good	0.454 \| good	10.413 \| good	0.248 \| good
2025-12-27T20:00:00.000Z	29 \| good	3.436 \| good	14.237 \| good	31.189 \| good	0.448 \| good	10.798 \| good	0.251 \| good
2025-12-27T21:00:00.000Z	27 \| good	3.57 \| good	14.419 \| good	28.802 \| good	0.443 \| good	11.096 \| good	0.296 \| good
2025-12-27T22:00:00.000Z	28 \| good	3.932 \| good	15.179 \| good	30.082 \| good	0.364 \| good	13.203 \| good	0.344 \| good
2025-12-27T23:00:00.000Z	25 \| good	4.341 \| good	16.732 \| good	27.326 \| good	0.441 \| good	21.246 \| good	0.392 \| good
2025-12-28T00:00:00.000Z	27 \| good	5.198 \| good	20.113 \| good	22.705 \| good	0.454 \| good	22.003 \| good	0.488 \| good
2025-12-28T01:00:00.000Z	38 \| good	6.686 \| good	26.789 \| good	20.217 \| good	0.383 \| good	30.552 \| good	0.632 \| good
2025-12-28T02:00:00.000Z	44 \| good	7.506 \| good	30.014 \| good	15.091 \| good	0.443 \| good	31.432 \| good	0.665 \| good
2025-12-28T03:00:00.000Z	56 \| moderate	11.707 \| good	51.313 \| good	7.682 \| good	0.808 \| good	25.099 \| good	0.282 \| good
2025-12-28T04:00:00.000Z	49 \| good	8.937 \| good	34.915 \| good	10.527 \| good	0.447 \| good	24.764 \| good	0.4 \| good
2025-12-28T05:00:00.000Z	49 \| good	8.909 \| good	34.184 \| good	10.486 \| good	0.462 \| good	22.627 \| good	0.396 \| good
2025-12-28T06:00:00.000Z	49 \| good	8.578 \| good	32.633 \| good	10.57 \| good	0.468 \| good	23.593 \| good	0.4 \| good
2025-12-28T07:00:00.000Z	49 \| good	8.578 \| good	32.633 \| good	11.01 \| good	0.463 \| good	23.508 \| good	0.393 \| good
2025-12-28T08:00:00.000Z	44 \| good	7.929 \| good	30.517 \| good	13.027 \| good	0.458 \| good	25.167 \| good	0.386 \| good
2025-12-28T09:00:00.000Z	38 \| good	6.957 \| good	25.838 \| good	9.687 \| good	0.485 \| good	25.236 \| good	0.434 \| good
2025-12-28T10:00:00.000Z	38 \| good	6.736 \| good	24.831 \| good	9.697 \| good	0.5 \| good	27.508 \| good	0.444 \| good
2025-12-28T11:00:00.000Z	33 \| good	6.447 \| good	23.819 \| good	6.772 \| good	0.572 \| good	28.611 \| good	0.45 \| good
2025-12-28T12:00:00.000Z	33 \| good	6.046 \| good	22.18 \| good	8.799 \| good	0.588 \| good	30.573 \| good	0.454 \| good
2025-12-28T13:00:00.000Z	33 \| good	6.046 \| good	22.18 \| good	6.674 \| good	0.588 \| good	30.35 \| good	0.45 \| good
2025-12-28T14:00:00.000Z	27 \| good	5.476 \| good	20.236 \| good	8.419 \| good	0.332 \| good	29.245 \| good	0.447 \| good
2025-12-28T15:00:00.000Z	27 \| good	5.141 \| good	19.971 \| good	13.507 \| good	0.497 \| good	21.036 \| good	0.389 \| good
2025-12-28T16:00:00.000Z	33 \| good	5.778 \| good	22.731 \| good	17.298 \| good	0.492 \| good	18.285 \| good	0.385 \| good
2025-12-28T17:00:00.000Z	33 \| good	6.216 \| good	25.613 \| good	16.816 \| good	0.482 \| good	15.818 \| good	0.338 \| good
2025-12-28T18:00:00.000Z	33 \| good	6.385 \| good	29.166 \| good	23.923 \| good	0.49 \| good	13.713 \| good	0.334 \| good
2025-12-28T19:00:00.000Z	38 \| good	6.853 \| good	33.787 \| good	22.472 \| good	0.475 \| good	14.3 \| good	0.334 \| good
2025-12-28T20:00:00.000Z	33 \| good	6.393 \| good	34.25 \| good	27.257 \| good	0.472 \| good	13.794 \| good	0.38 \| good
2025-12-28T21:00:00.000Z	38 \| good	6.844 \| good	37.022 \| good	28.758 \| good	0.48 \| good	18.974 \| good	0.43 \| good
2025-12-28T22:00:00.000Z	38 \| good	7.299 \| good	37.09 \| good	24.034 \| good	0.485 \| good	25.194 \| good	0.434 \| good
2025-12-28T23:00:00.000Z	38 \| good	7.279 \| good	37.468 \| good	24.022 \| good	0.481 \| good	25.88 \| good	0.435 \| good
2025-12-29T00:00:00.000Z	58 \| moderate	13.373 \| fine	60.26 \| fine	12.567 \| good	1.316 \| good	27.021 \| good	0.303 \| good
2025-12-29T01:00:00.000Z	62 \| moderate	14.903 \| fine	66.328 \| fine	12.856 \| good	1.524 \| good	25.669 \| good	0.29 \| good
2025-12-29T02:00:00.000Z	64 \| moderate	16.188 \| fine	72.248 \| fine	11.651 \| good	1.732 \| good	24.317 \| good	0.277 \| good
2025-12-29T03:00:00.000Z	69 \| moderate	18.959 \| fine	83.4 \| fine	6.993 \| good	1.941 \| good	22.965 \| good	0.264 \| good
2025-12-29T04:00:00.000Z	71 \| moderate	20.236 \| fine	89 \| fine	6.453 \| good	1.796 \| good	22.206 \| good	0.252 \| good
2025-12-29T05:00:00.000Z	67 \| moderate	17.986 \| fine	79.688 \| fine	9.404 \| good	1.651 \| good	21.447 \| good	0.241 \| good
2025-12-29T06:00:00.000Z	58 \| moderate	13.142 \| fine	59.188 \| fine	15.339 \| good	1.507 \| good	20.688 \| good	0.23 \| good
2025-12-29T07:00:00.000Z	44 \| good	7.526 \| good	33.586 \| good	22.418 \| good	1.162 \| good	15.207 \| good	0.202 \| good
2025-12-29T08:00:00.000Z	27 \| good	5.155 \| good	22.634 \| good	25.13 \| good	0.818 \| good	9.727 \| good	0.175 \| good
2025-12-29T09:00:00.000Z	23 \| good	3.765 \| good	16.233 \| good	25.289 \| good	0.473 \| good	4.246 \| good	0.148 \| good
2025-12-29T10:00:00.000Z	21 \| good	2.22 \| good	8.948 \| good	22.714 \| good	0.514 \| good	5.108 \| good	0.151 \| good
2025-12-29T11:00:00.000Z	20 \| good	1.915 \| good	8.036 \| good	21.525 \| good	0.555 \| good	5.971 \| good	0.155 \| good
2025-12-29T12:00:00.000Z	19 \| good	1.977 \| good	8.065 \| good	21.194 \| good	0.596 \| good	6.833 \| good	0.159 \| good
2025-12-29T13:00:00.000Z	17 \| good	2.136 \| good	8.687 \| good	18.331 \| good	0.77 \| good	7.688 \| good	0.168 \| good
2025-12-29T14:00:00.000Z	16 \| good	3.086 \| good	13.21 \| good	16.295 \| good	0.945 \| good	8.543 \| good	0.177 \| good
2025-12-29T15:00:00.000Z	27 \| good	4.904 \| good	21.041 \| good	13.762 \| good	1.119 \| good	9.398 \| good	0.187 \| good
2025-12-29T16:00:00.000Z	22 \| good	4.461 \| good	19.508 \| good	18.28 \| good	1.064 \| good	8.966 \| good	0.185 \| good
2025-12-29T17:00:00.000Z	33 \| good	6.247 \| good	27.525 \| good	19.996 \| good	1.009 \| good	8.535 \| good	0.184 \| good
2025-12-29T18:00:00.000Z	38 \| good	7.269 \| good	32.075 \| good	22.107 \| good	0.954 \| good	8.103 \| good	0.182 \| good
2025-12-29T19:00:00.000Z	49 \| good	8.572 \| good	37.398 \| good	20.824 \| good	1.023 \| good	9.316 \| good	0.188 \| good
2025-12-29T20:00:00.000Z	33 \| good	5.874 \| good	25.745 \| good	29.231 \| good	1.092 \| good	10.529 \| good	0.193 \| good
2025-12-29T21:00:00.000Z	32 \| good	4.171 \| good	18.401 \| good	34.662 \| good	1.16 \| good	11.742 \| good	0.199 \| good
2025-12-29T22:00:00.000Z	30 \| good	4.662 \| good	20.081 \| good	32.063 \| good	1.337 \| good	11.059 \| good	0.195 \| good
2025-12-29T23:00:00.000Z	33 \| good	6.081 \| good	26.927 \| good	29.478 \| good	1.514 \| good	10.375 \| good	0.192 \| good
2025-12-30T00:00:00.000Z	44 \| good	8.207 \| good	36.142 \| good	27.963 \| good	1.69 \| good	9.691 \| good	0.188 \| good
2025-12-30T01:00:00.000Z	49 \| good	8.972 \| good	39.778 \| good	26.793 \| good	1.371 \| good	7.832 \| good	0.184 \| good
2025-12-30T02:00:00.000Z	38 \| good	6.911 \| good	30.934 \| good	24.443 \| good	1.051 \| good	5.972 \| good	0.181 \| good
2025-12-30T03:00:00.000Z	27 \| good	4.678 \| good	20.529 \| good	22.526 \| good	0.731 \| good	4.112 \| good	0.177 \| good
2025-12-30T04:00:00.000Z	22 \| good	4.123 \| good	18.068 \| good	22.498 \| good	0.647 \| good	3.58 \| good	0.169 \| good
2025-12-30T05:00:00.000Z	22 \| good	3.376 \| good	14.936 \| good	24.317 \| good	0.563 \| good	3.048 \| good	0.161 \| good
2025-12-30T06:00:00.000Z	27 \| good	2.715 \| good	11.068 \| good	28.535 \| good	0.478 \| good	2.516 \| good	0.153 \| good
2025-12-30T07:00:00.000Z	28 \| good	1.35 \| good	5.146 \| good	29.732 \| good	0.458 \| good	2.297 \| good	0.149 \| good
2025-12-30T08:00:00.000Z	29 \| good	0.17 \| good	0.109 \| good	30.626 \| good	0.438 \| good	2.078 \| good	0.144 \| good
2025-12-30T09:00:00.000Z	29 \| good	0.18 \| good	0.557 \| good	31.486 \| good	0.418 \| good	1.859 \| good	0.14 \| good
2025-12-30T10:00:00.000Z	28 \| good	0.145 \| good	0.365 \| good	30.199 \| good	0.443 \| good	2.49 \| good	0.143 \| good
2025-12-30T11:00:00.000Z	26 \| good	0.455 \| good	1.866 \| good	27.988 \| good	0.468 \| good	3.122 \| good	0.146 \| good
2025-12-30T12:00:00.000Z	23 \| good	0.542 \| good	1.965 \| good	24.795 \| good	0.493 \| good	3.754 \| good	0.149 \| good
2025-12-30T13:00:00.000Z	25 \| good	0.26 \| good	1.015 \| good	26.995 \| good	0.435 \| good	3.147 \| good	0.146 \| good
2025-12-30T14:00:00.000Z	26 \| good	0.292 \| good	1.016 \| good	27.965 \| good	0.377 \| good	2.541 \| good	0.142 \| good
2025-12-30T15:00:00.000Z	27 \| good	0.301 \| good	0.982 \| good	28.924 \| good	0.319 \| good	1.935 \| good	0.139 \| good
2025-12-30T16:00:00.000Z	29 \| good	0.783 \| good	2.972 \| good	30.856 \| good	0.31 \| good	1.823 \| good	0.137 \| good
2025-12-30T17:00:00.000Z	29 \| good	1.37 \| good	5.581 \| good	31.478 \| good	0.301 \| good	1.71 \| good	0.136 \| good
2025-12-30T18:00:00.000Z	30 \| good	0.959 \| good	3.664 \| good	32.431 \| good	0.292 \| good	1.598 \| good	0.135 \| good
2025-12-30T19:00:00.000Z	30 \| good	1.231 \| good	4.712 \| good	32.068 \| good	0.302 \| good	1.929 \| good	0.136 \| good
2025-12-30T20:00:00.000Z	31 \| good	0.88 \| good	3.519 \| good	33.816 \| good	0.311 \| good	2.26 \| good	0.137 \| good
2025-12-30T21:00:00.000Z	31 \| good	1.558 \| good	6.519 \| good	34.457 \| good	0.321 \| good	2.591 \| good	0.137 \| good
2025-12-30T22:00:00.000Z	29 \| good	2.065 \| good	8.524 \| good	31.284 \| good	0.376 \| good	3.02 \| good	0.139 \| good
2025-12-30T23:00:00.000Z	30 \| good	2.106 \| good	8.581 \| good	31.574 \| good	0.432 \| good	3.45 \| good	0.141 \| good

Medford

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Medford, Massachusetts air quality map: Track AQI near you

0.42ppm

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 Medford, Massachusetts updated?

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

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

The worst air quality in Medford, Massachusetts in the last 24 hours was observed at 03:00:00 on 2025-12-28.

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

In the last 24 hrs, the best air quality in Medford, Massachusetts was observed at 11:00:00 on 2025-12-27.

What is the current air quality in Medford, Massachusetts?

The current air quality in Medford, Massachusetts is 38, categorized as Good based on real-time data.

What pollutant is the most common in Medford, Massachusetts?

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

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

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

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

The current PM_2.5 concentration at Medford, Massachusetts is 7.279 μg/m³.

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

The current PM₁₀ concentration at Medford, Massachusetts is 37.468 μg/m³.

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

The current carbon monoxide (CO) concentration at Medford, Massachusetts is 0.435 ppm.

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

The current sulfur dioxide (SO₂) concentration at Medford, Massachusetts is 0.481 ppb.

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

The current ozone (O₃) concentration at Medford, Massachusetts is 24.022 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Medford, Massachusetts is 25.88 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-12-27T00:00:00.000Z	27 \| good	4.53 \| good	19.244 \| good	20.483 \| good	0.452 \| good	19.956 \| good	0.376 \| good
2025-12-27T01:00:00.000Z	27 \| good	4.905 \| good	20.658 \| good	22.293 \| good	0.451 \| good	19.184 \| good	0.377 \| good
2025-12-27T02:00:00.000Z	27 \| good	5.085 \| good	21.4 \| good	21.925 \| good	0.443 \| good	21.992 \| good	0.377 \| good
2025-12-27T03:00:00.000Z	27 \| good	5.355 \| good	22.339 \| good	17.155 \| good	0.435 \| good	22.913 \| good	0.377 \| good
2025-12-27T04:00:00.000Z	33 \| good	5.516 \| good	23.352 \| good	20.074 \| good	0.439 \| good	20.209 \| good	0.377 \| good
2025-12-27T05:00:00.000Z	33 \| good	5.691 \| good	23.05 \| good	21.879 \| good	0.443 \| good	19.891 \| good	0.287 \| good
2025-12-27T06:00:00.000Z	33 \| good	5.515 \| good	22.232 \| good	20.688 \| good	0.442 \| good	18.817 \| good	0.242 \| good
2025-12-27T07:00:00.000Z	33 \| good	5.515 \| good	22.232 \| good	21.019 \| good	0.447 \| good	18.889 \| good	0.242 \| good
2025-12-27T08:00:00.000Z	27 \| good	5.376 \| good	21.315 \| good	19.945 \| good	0.451 \| good	19.439 \| good	0.242 \| good
2025-12-27T09:00:00.000Z	27 \| good	4.923 \| good	19.695 \| good	20.183 \| good	0.46 \| good	17.063 \| good	0.2 \| good
2025-12-27T10:00:00.000Z	27 \| good	4.779 \| good	19.613 \| good	23.275 \| good	0.464 \| good	14.153 \| good	0.2 \| good
2025-12-27T11:00:00.000Z	22 \| good	4.024 \| good	15.959 \| good	21.456 \| good	0.468 \| good	12.303 \| good	0.2 \| good
2025-12-27T12:00:00.000Z	23 \| good	4.024 \| good	15.959 \| good	24.576 \| good	0.463 \| good	12.256 \| good	0.2 \| good
2025-12-27T13:00:00.000Z	24 \| good	3.519 \| good	14.614 \| good	25.631 \| good	0.461 \| good	12.098 \| good	0.2 \| good
2025-12-27T14:00:00.000Z	27 \| good	3.164 \| good	12.727 \| good	28.969 \| good	0.453 \| good	13.309 \| good	0.245 \| good
2025-12-27T15:00:00.000Z	25 \| good	3.087 \| good	12.712 \| good	27.406 \| good	0.451 \| good	12.12 \| good	0.245 \| good
2025-12-27T16:00:00.000Z	27 \| good	3.083 \| good	12.607 \| good	28.511 \| good	0.444 \| good	11.681 \| good	0.248 \| good
2025-12-27T17:00:00.000Z	27 \| good	3.182 \| good	12.789 \| good	28.633 \| good	0.443 \| good	11.9 \| good	0.248 \| good
2025-12-27T18:00:00.000Z	27 \| good	3.282 \| good	13.153 \| good	28.831 \| good	0.454 \| good	11.256 \| good	0.248 \| good
2025-12-27T19:00:00.000Z	28 \| good	3.335 \| good	13.336 \| good	30.195 \| good	0.454 \| good	10.413 \| good	0.248 \| good
2025-12-27T20:00:00.000Z	29 \| good	3.436 \| good	14.237 \| good	31.189 \| good	0.448 \| good	10.798 \| good	0.251 \| good
2025-12-27T21:00:00.000Z	27 \| good	3.57 \| good	14.419 \| good	28.802 \| good	0.443 \| good	11.096 \| good	0.296 \| good
2025-12-27T22:00:00.000Z	28 \| good	3.932 \| good	15.179 \| good	30.082 \| good	0.364 \| good	13.203 \| good	0.344 \| good
2025-12-27T23:00:00.000Z	25 \| good	4.341 \| good	16.732 \| good	27.326 \| good	0.441 \| good	21.246 \| good	0.392 \| good
2025-12-28T00:00:00.000Z	27 \| good	5.198 \| good	20.113 \| good	22.705 \| good	0.454 \| good	22.003 \| good	0.488 \| good
2025-12-28T01:00:00.000Z	38 \| good	6.686 \| good	26.789 \| good	20.217 \| good	0.383 \| good	30.552 \| good	0.632 \| good
2025-12-28T02:00:00.000Z	44 \| good	7.506 \| good	30.014 \| good	15.091 \| good	0.443 \| good	31.432 \| good	0.665 \| good
2025-12-28T03:00:00.000Z	56 \| moderate	11.707 \| good	51.313 \| good	7.682 \| good	0.808 \| good	25.099 \| good	0.282 \| good
2025-12-28T04:00:00.000Z	49 \| good	8.937 \| good	34.915 \| good	10.527 \| good	0.447 \| good	24.764 \| good	0.4 \| good
2025-12-28T05:00:00.000Z	49 \| good	8.909 \| good	34.184 \| good	10.486 \| good	0.462 \| good	22.627 \| good	0.396 \| good
2025-12-28T06:00:00.000Z	49 \| good	8.578 \| good	32.633 \| good	10.57 \| good	0.468 \| good	23.593 \| good	0.4 \| good
2025-12-28T07:00:00.000Z	49 \| good	8.578 \| good	32.633 \| good	11.01 \| good	0.463 \| good	23.508 \| good	0.393 \| good
2025-12-28T08:00:00.000Z	44 \| good	7.929 \| good	30.517 \| good	13.027 \| good	0.458 \| good	25.167 \| good	0.386 \| good
2025-12-28T09:00:00.000Z	38 \| good	6.957 \| good	25.838 \| good	9.687 \| good	0.485 \| good	25.236 \| good	0.434 \| good
2025-12-28T10:00:00.000Z	38 \| good	6.736 \| good	24.831 \| good	9.697 \| good	0.5 \| good	27.508 \| good	0.444 \| good
2025-12-28T11:00:00.000Z	33 \| good	6.447 \| good	23.819 \| good	6.772 \| good	0.572 \| good	28.611 \| good	0.45 \| good
2025-12-28T12:00:00.000Z	33 \| good	6.046 \| good	22.18 \| good	8.799 \| good	0.588 \| good	30.573 \| good	0.454 \| good
2025-12-28T13:00:00.000Z	33 \| good	6.046 \| good	22.18 \| good	6.674 \| good	0.588 \| good	30.35 \| good	0.45 \| good
2025-12-28T14:00:00.000Z	27 \| good	5.476 \| good	20.236 \| good	8.419 \| good	0.332 \| good	29.245 \| good	0.447 \| good
2025-12-28T15:00:00.000Z	27 \| good	5.141 \| good	19.971 \| good	13.507 \| good	0.497 \| good	21.036 \| good	0.389 \| good
2025-12-28T16:00:00.000Z	33 \| good	5.778 \| good	22.731 \| good	17.298 \| good	0.492 \| good	18.285 \| good	0.385 \| good
2025-12-28T17:00:00.000Z	33 \| good	6.216 \| good	25.613 \| good	16.816 \| good	0.482 \| good	15.818 \| good	0.338 \| good
2025-12-28T18:00:00.000Z	33 \| good	6.385 \| good	29.166 \| good	23.923 \| good	0.49 \| good	13.713 \| good	0.334 \| good
2025-12-28T19:00:00.000Z	38 \| good	6.853 \| good	33.787 \| good	22.472 \| good	0.475 \| good	14.3 \| good	0.334 \| good
2025-12-28T20:00:00.000Z	33 \| good	6.393 \| good	34.25 \| good	27.257 \| good	0.472 \| good	13.794 \| good	0.38 \| good
2025-12-28T21:00:00.000Z	38 \| good	6.844 \| good	37.022 \| good	28.758 \| good	0.48 \| good	18.974 \| good	0.43 \| good
2025-12-28T22:00:00.000Z	38 \| good	7.299 \| good	37.09 \| good	24.034 \| good	0.485 \| good	25.194 \| good	0.434 \| good
2025-12-28T23:00:00.000Z	38 \| good	7.279 \| good	37.468 \| good	24.022 \| good	0.481 \| good	25.88 \| good	0.435 \| good
2025-12-29T00:00:00.000Z	58 \| moderate	13.373 \| fine	60.26 \| fine	12.567 \| good	1.316 \| good	27.021 \| good	0.303 \| good
2025-12-29T01:00:00.000Z	62 \| moderate	14.903 \| fine	66.328 \| fine	12.856 \| good	1.524 \| good	25.669 \| good	0.29 \| good
2025-12-29T02:00:00.000Z	64 \| moderate	16.188 \| fine	72.248 \| fine	11.651 \| good	1.732 \| good	24.317 \| good	0.277 \| good
2025-12-29T03:00:00.000Z	69 \| moderate	18.959 \| fine	83.4 \| fine	6.993 \| good	1.941 \| good	22.965 \| good	0.264 \| good
2025-12-29T04:00:00.000Z	71 \| moderate	20.236 \| fine	89 \| fine	6.453 \| good	1.796 \| good	22.206 \| good	0.252 \| good
2025-12-29T05:00:00.000Z	67 \| moderate	17.986 \| fine	79.688 \| fine	9.404 \| good	1.651 \| good	21.447 \| good	0.241 \| good
2025-12-29T06:00:00.000Z	58 \| moderate	13.142 \| fine	59.188 \| fine	15.339 \| good	1.507 \| good	20.688 \| good	0.23 \| good
2025-12-29T07:00:00.000Z	44 \| good	7.526 \| good	33.586 \| good	22.418 \| good	1.162 \| good	15.207 \| good	0.202 \| good
2025-12-29T08:00:00.000Z	27 \| good	5.155 \| good	22.634 \| good	25.13 \| good	0.818 \| good	9.727 \| good	0.175 \| good
2025-12-29T09:00:00.000Z	23 \| good	3.765 \| good	16.233 \| good	25.289 \| good	0.473 \| good	4.246 \| good	0.148 \| good
2025-12-29T10:00:00.000Z	21 \| good	2.22 \| good	8.948 \| good	22.714 \| good	0.514 \| good	5.108 \| good	0.151 \| good
2025-12-29T11:00:00.000Z	20 \| good	1.915 \| good	8.036 \| good	21.525 \| good	0.555 \| good	5.971 \| good	0.155 \| good
2025-12-29T12:00:00.000Z	19 \| good	1.977 \| good	8.065 \| good	21.194 \| good	0.596 \| good	6.833 \| good	0.159 \| good
2025-12-29T13:00:00.000Z	17 \| good	2.136 \| good	8.687 \| good	18.331 \| good	0.77 \| good	7.688 \| good	0.168 \| good
2025-12-29T14:00:00.000Z	16 \| good	3.086 \| good	13.21 \| good	16.295 \| good	0.945 \| good	8.543 \| good	0.177 \| good
2025-12-29T15:00:00.000Z	27 \| good	4.904 \| good	21.041 \| good	13.762 \| good	1.119 \| good	9.398 \| good	0.187 \| good
2025-12-29T16:00:00.000Z	22 \| good	4.461 \| good	19.508 \| good	18.28 \| good	1.064 \| good	8.966 \| good	0.185 \| good
2025-12-29T17:00:00.000Z	33 \| good	6.247 \| good	27.525 \| good	19.996 \| good	1.009 \| good	8.535 \| good	0.184 \| good
2025-12-29T18:00:00.000Z	38 \| good	7.269 \| good	32.075 \| good	22.107 \| good	0.954 \| good	8.103 \| good	0.182 \| good
2025-12-29T19:00:00.000Z	49 \| good	8.572 \| good	37.398 \| good	20.824 \| good	1.023 \| good	9.316 \| good	0.188 \| good
2025-12-29T20:00:00.000Z	33 \| good	5.874 \| good	25.745 \| good	29.231 \| good	1.092 \| good	10.529 \| good	0.193 \| good
2025-12-29T21:00:00.000Z	32 \| good	4.171 \| good	18.401 \| good	34.662 \| good	1.16 \| good	11.742 \| good	0.199 \| good
2025-12-29T22:00:00.000Z	30 \| good	4.662 \| good	20.081 \| good	32.063 \| good	1.337 \| good	11.059 \| good	0.195 \| good
2025-12-29T23:00:00.000Z	33 \| good	6.081 \| good	26.927 \| good	29.478 \| good	1.514 \| good	10.375 \| good	0.192 \| good
2025-12-30T00:00:00.000Z	44 \| good	8.207 \| good	36.142 \| good	27.963 \| good	1.69 \| good	9.691 \| good	0.188 \| good
2025-12-30T01:00:00.000Z	49 \| good	8.972 \| good	39.778 \| good	26.793 \| good	1.371 \| good	7.832 \| good	0.184 \| good
2025-12-30T02:00:00.000Z	38 \| good	6.911 \| good	30.934 \| good	24.443 \| good	1.051 \| good	5.972 \| good	0.181 \| good
2025-12-30T03:00:00.000Z	27 \| good	4.678 \| good	20.529 \| good	22.526 \| good	0.731 \| good	4.112 \| good	0.177 \| good
2025-12-30T04:00:00.000Z	22 \| good	4.123 \| good	18.068 \| good	22.498 \| good	0.647 \| good	3.58 \| good	0.169 \| good
2025-12-30T05:00:00.000Z	22 \| good	3.376 \| good	14.936 \| good	24.317 \| good	0.563 \| good	3.048 \| good	0.161 \| good
2025-12-30T06:00:00.000Z	27 \| good	2.715 \| good	11.068 \| good	28.535 \| good	0.478 \| good	2.516 \| good	0.153 \| good
2025-12-30T07:00:00.000Z	28 \| good	1.35 \| good	5.146 \| good	29.732 \| good	0.458 \| good	2.297 \| good	0.149 \| good
2025-12-30T08:00:00.000Z	29 \| good	0.17 \| good	0.109 \| good	30.626 \| good	0.438 \| good	2.078 \| good	0.144 \| good
2025-12-30T09:00:00.000Z	29 \| good	0.18 \| good	0.557 \| good	31.486 \| good	0.418 \| good	1.859 \| good	0.14 \| good
2025-12-30T10:00:00.000Z	28 \| good	0.145 \| good	0.365 \| good	30.199 \| good	0.443 \| good	2.49 \| good	0.143 \| good
2025-12-30T11:00:00.000Z	26 \| good	0.455 \| good	1.866 \| good	27.988 \| good	0.468 \| good	3.122 \| good	0.146 \| good
2025-12-30T12:00:00.000Z	23 \| good	0.542 \| good	1.965 \| good	24.795 \| good	0.493 \| good	3.754 \| good	0.149 \| good
2025-12-30T13:00:00.000Z	25 \| good	0.26 \| good	1.015 \| good	26.995 \| good	0.435 \| good	3.147 \| good	0.146 \| good
2025-12-30T14:00:00.000Z	26 \| good	0.292 \| good	1.016 \| good	27.965 \| good	0.377 \| good	2.541 \| good	0.142 \| good
2025-12-30T15:00:00.000Z	27 \| good	0.301 \| good	0.982 \| good	28.924 \| good	0.319 \| good	1.935 \| good	0.139 \| good
2025-12-30T16:00:00.000Z	29 \| good	0.783 \| good	2.972 \| good	30.856 \| good	0.31 \| good	1.823 \| good	0.137 \| good
2025-12-30T17:00:00.000Z	29 \| good	1.37 \| good	5.581 \| good	31.478 \| good	0.301 \| good	1.71 \| good	0.136 \| good
2025-12-30T18:00:00.000Z	30 \| good	0.959 \| good	3.664 \| good	32.431 \| good	0.292 \| good	1.598 \| good	0.135 \| good
2025-12-30T19:00:00.000Z	30 \| good	1.231 \| good	4.712 \| good	32.068 \| good	0.302 \| good	1.929 \| good	0.136 \| good
2025-12-30T20:00:00.000Z	31 \| good	0.88 \| good	3.519 \| good	33.816 \| good	0.311 \| good	2.26 \| good	0.137 \| good
2025-12-30T21:00:00.000Z	31 \| good	1.558 \| good	6.519 \| good	34.457 \| good	0.321 \| good	2.591 \| good	0.137 \| good
2025-12-30T22:00:00.000Z	29 \| good	2.065 \| good	8.524 \| good	31.284 \| good	0.376 \| good	3.02 \| good	0.139 \| good
2025-12-30T23:00:00.000Z	30 \| good	2.106 \| good	8.581 \| good	31.574 \| good	0.432 \| good	3.45 \| good	0.141 \| good

Medford, Massachusetts live air quality index now

Major air pollutants in Medford, Massachusetts

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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Air quality in nearby cities

Malden, Massachusetts

Somerville, Massachusetts

Arlington, Massachusetts

Everett, Massachusetts

Winchester, Massachusetts

Melrose, Massachusetts

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

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

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