What is the sulfur dioxide (SO2) level in Lexington, Massachusetts at the moment?

Currently, Lexington, Massachusetts has a sulfur dioxide (SO2) concentration of 0.712 ppb.

What is the ozone (O3) level in Lexington, Massachusetts at the moment?

The current ozone (O3) level in Lexington, Massachusetts at the moment is 21.736 ppm.

What is the nitrogen dioxide (NO2) level in Lexington, Massachusetts at the moment?

Nitrogen dioxide (NO2) level in Lexington, Massachusetts at the moment is 12.856 ppb.

Real-time air quality index in Lexington, Massachusetts today

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

Stay updated with real-time air quality in Lexington, 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

Lexington, Massachusetts

Last updated: ... (Local time)

Major air pollutants in Lexington, Massachusetts

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

15.56 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

43.72 μg/m³

155

255

425

605+

Ozone (O₃)

21.74 ppb

201

201+

Sulfur Dioxide (SO₂)

0.71 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

12.86 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.24 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Lexington, Massachusetts

Get Live Pollen Counts

Lexington, Massachusetts

Scroll To Air Quality Map

Track live Lexington, Massachusetts air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-05T23:00:00.000Z	84 \| moderate	20.063 \| fine	83.238 \| fine	65.071 \| fine	0.557 \| good	11.402 \| good	0.368 \| good
2025-06-06T00:00:00.000Z	71 \| moderate	18.64 \| fine	73.712 \| fine	61.412 \| fine	0.512 \| good	8.934 \| good	0.381 \| good
2025-06-06T01:00:00.000Z	67 \| moderate	17.664 \| fine	66.147 \| fine	57.273 \| fine	0.568 \| good	7.732 \| good	0.381 \| good
2025-06-06T02:00:00.000Z	71 \| moderate	20.173 \| fine	79.292 \| fine	58.635 \| fine	0.516 \| good	9.928 \| good	0.381 \| good
2025-06-06T03:00:00.000Z	73 \| moderate	20.607 \| fine	90.01 \| fine	59.906 \| fine	0.537 \| good	7.739 \| good	0.392 \| good
2025-06-06T04:00:00.000Z	69 \| moderate	18.521 \| fine	78.106 \| fine	50.449 \| good	0.59 \| good	7.743 \| good	0.364 \| good
2025-06-06T05:00:00.000Z	71 \| moderate	19.996 \| fine	82.702 \| fine	51.541 \| good	0.729 \| good	12.466 \| good	0.273 \| good
2025-06-06T06:00:00.000Z	71 \| moderate	19.985 \| fine	63.41 \| fine	41.472 \| good	0.734 \| good	18.167 \| good	0.206 \| good
2025-06-06T07:00:00.000Z	66 \| moderate	16.582 \| fine	41.488 \| good	46.903 \| good	0.591 \| good	6.705 \| good	0.274 \| good
2025-06-06T08:00:00.000Z	64 \| moderate	15.94 \| fine	71.252 \| fine	37.497 \| good	0.573 \| good	7.864 \| good	0.258 \| good
2025-06-06T09:00:00.000Z	60 \| moderate	14.169 \| fine	55.562 \| fine	36.972 \| good	0.632 \| good	10.015 \| good	0.283 \| good
2025-06-06T10:00:00.000Z	62 \| moderate	14.723 \| fine	47.189 \| good	39.38 \| good	0.627 \| good	7.161 \| good	0.283 \| good
2025-06-06T11:00:00.000Z	66 \| moderate	17.11 \| fine	62.255 \| fine	40.464 \| good	0.569 \| good	10.424 \| good	0.277 \| good
2025-06-06T12:00:00.000Z	67 \| moderate	18.332 \| fine	78.041 \| fine	42.042 \| good	0.59 \| good	13.155 \| good	0.26 \| good
2025-06-06T13:00:00.000Z	66 \| moderate	17.072 \| fine	62.936 \| fine	32.715 \| good	0.626 \| good	10.565 \| good	0.24 \| good
2025-06-06T14:00:00.000Z	66 \| moderate	16.967 \| fine	53.148 \| good	41.111 \| good	0.561 \| good	8.091 \| good	0.24 \| good
2025-06-06T15:00:00.000Z	60 \| moderate	14.207 \| fine	45.638 \| good	40.646 \| good	0.415 \| good	9.173 \| good	0.24 \| good
2025-06-06T16:00:00.000Z	60 \| moderate	14.194 \| fine	59.355 \| fine	43.681 \| good	0.522 \| good	8.113 \| good	0.24 \| good
2025-06-06T17:00:00.000Z	62 \| moderate	14.531 \| fine	58.842 \| fine	53.664 \| good	0.465 \| good	6.531 \| good	0.207 \| good
2025-06-06T18:00:00.000Z	58 \| moderate	12.926 \| fine	48.198 \| good	52.182 \| good	0.528 \| good	6.238 \| good	0.24 \| good
2025-06-06T19:00:00.000Z	60 \| moderate	13.717 \| fine	45.309 \| good	38.967 \| good	0.461 \| good	8.19 \| good	0.261 \| good
2025-06-06T20:00:00.000Z	64 \| moderate	15.743 \| fine	60.241 \| fine	36.623 \| good	0.603 \| good	9.221 \| good	0.217 \| good
2025-06-06T21:00:00.000Z	64 \| moderate	15.549 \| fine	65.183 \| fine	33.548 \| good	0.828 \| good	10.865 \| good	0.273 \| good
2025-06-06T22:00:00.000Z	64 \| moderate	15.516 \| fine	58.64 \| fine	33.504 \| good	0.628 \| good	8.994 \| good	0.26 \| good
2025-06-06T23:00:00.000Z	64 \| moderate	16.254 \| fine	49.793 \| good	27.602 \| good	0.729 \| good	12.02 \| good	0.236 \| good
2025-06-07T00:00:00.000Z	67 \| moderate	17.509 \| fine	56.677 \| fine	26.655 \| good	0.756 \| good	22.623 \| good	0.269 \| good
2025-06-07T01:00:00.000Z	66 \| moderate	16.578 \| fine	56.362 \| fine	27.845 \| good	0.635 \| good	17.281 \| good	0.292 \| good
2025-06-07T02:00:00.000Z	62 \| moderate	15.405 \| fine	48.075 \| good	36.737 \| good	0.567 \| good	14.684 \| good	0.315 \| good
2025-06-07T03:00:00.000Z	67 \| moderate	18.388 \| fine	65.772 \| fine	34.84 \| good	0.706 \| good	24.184 \| good	0.263 \| good
2025-06-07T04:00:00.000Z	69 \| moderate	18.852 \| fine	81.497 \| fine	37.555 \| good	0.693 \| good	14.47 \| good	0.257 \| good
2025-06-07T05:00:00.000Z	60 \| moderate	13.885 \| fine	60.779 \| fine	33.27 \| good	0.964 \| good	12.745 \| good	0.143 \| good
2025-06-07T06:00:00.000Z	38 \| good	7.199 \| good	29.416 \| good	32.855 \| good	0.948 \| good	28.109 \| good	0.143 \| good
2025-06-07T07:00:00.000Z	33 \| good	5.792 \| good	20.952 \| good	31.535 \| good	0.546 \| good	4.977 \| good	0.247 \| good
2025-06-07T08:00:00.000Z	66 \| moderate	17.049 \| fine	79.527 \| fine	29.007 \| good	0.584 \| good	5.348 \| good	0.247 \| good
2025-06-07T09:00:00.000Z	62 \| moderate	15.416 \| fine	41.206 \| good	25.057 \| good	0.607 \| good	6.159 \| good	0.264 \| good
2025-06-07T10:00:00.000Z	62 \| moderate	15.283 \| fine	60.953 \| fine	25.757 \| good	0.592 \| good	4.037 \| good	0.197 \| good
2025-06-07T11:00:00.000Z	60 \| moderate	14.033 \| fine	59.749 \| fine	19.876 \| good	0.549 \| good	4.09 \| good	0.2 \| good
2025-06-07T12:00:00.000Z	56 \| moderate	11.876 \| good	38.463 \| good	20.293 \| good	0.635 \| good	4.536 \| good	0.2 \| good
2025-06-07T13:00:00.000Z	62 \| moderate	14.515 \| fine	41.354 \| good	21.247 \| good	0.654 \| good	9.939 \| good	0.277 \| good
2025-06-07T14:00:00.000Z	66 \| moderate	17.153 \| fine	60.606 \| fine	16.187 \| good	0.732 \| good	9.75 \| good	0.277 \| good
2025-06-07T15:00:00.000Z	67 \| moderate	18.418 \| fine	55.398 \| fine	21.241 \| good	0.682 \| good	7.711 \| good	0.255 \| good
2025-06-07T16:00:00.000Z	64 \| moderate	15.564 \| fine	43.72 \| good	21.736 \| good	0.712 \| good	12.856 \| good	0.244 \| good
2025-06-07T17:00:00.000Z	66 \| moderate	17.046 \| fine	55.479 \| fine	26.354 \| good	0.87 \| good	16.346 \| good	0.244 \| good
2025-06-07T18:00:00.000Z	38 \| good	7.053 \| good	23.463 \| good	27.067 \| good	0.809 \| good	13.717 \| good	0.211 \| good
2025-06-07T19:00:00.000Z	58 \| moderate	13.192 \| fine	61.317 \| fine	26.944 \| good	0.648 \| good	11.461 \| good	0.197 \| good
2025-06-07T20:00:00.000Z	49 \| good	8.837 \| good	19.932 \| good	29.456 \| good	0.65 \| good	9.092 \| good	0.25 \| good
2025-06-07T21:00:00.000Z	52 \| moderate	9.765 \| good	34.041 \| good	29.025 \| good	0.636 \| good	13.026 \| good	0.296 \| good
2025-06-07T17:00:00.000Z	64 \| moderate	15.564 \| fine	43.72 \| good	21.736 \| good	0.712 \| good	12.856 \| good	0.244 \| good
2025-06-07T18:00:00.000Z	52 \| moderate	9.583 \| good	42.626 \| good	28.965 \| good	0.968 \| good	5.928 \| good	0.23 \| good
2025-06-07T19:00:00.000Z	32 \| good	5.41 \| good	23.394 \| good	34.746 \| good	0.773 \| good	6.317 \| good	0.243 \| good
2025-06-07T20:00:00.000Z	33 \| good	4.499 \| good	19.467 \| good	35.684 \| good	1.08 \| good	9.039 \| good	0.258 \| good
2025-06-07T21:00:00.000Z	31 \| good	5.202 \| good	22.284 \| good	32.734 \| good	1.388 \| good	11.762 \| good	0.273 \| good
2025-06-07T22:00:00.000Z	44 \| good	8.197 \| good	36.006 \| good	34.313 \| good	0.832 \| good	9.805 \| good	0.282 \| good
2025-06-07T23:00:00.000Z	54 \| moderate	11.291 \| good	50.495 \| good	35.184 \| good	1.138 \| good	12.437 \| good	0.289 \| good
2025-06-08T00:00:00.000Z	44 \| good	7.743 \| good	34.168 \| good	35.656 \| good	1.444 \| good	15.068 \| good	0.296 \| good
2025-06-08T01:00:00.000Z	52 \| moderate	9.939 \| good	44.119 \| good	31.006 \| good	0.724 \| good	7.728 \| good	0.3 \| good
2025-06-08T02:00:00.000Z	56 \| moderate	12.023 \| good	53.493 \| good	29.973 \| good	0.863 \| good	9.803 \| good	0.304 \| good
2025-06-08T03:00:00.000Z	56 \| moderate	12.465 \| fine	55.535 \| fine	31.356 \| good	1.003 \| good	11.879 \| good	0.308 \| good
2025-06-08T04:00:00.000Z	56 \| moderate	11.506 \| good	50.989 \| good	31.753 \| good	0.692 \| good	5.648 \| good	0.335 \| good
2025-06-08T05:00:00.000Z	54 \| moderate	11.117 \| good	49.413 \| good	30.624 \| good	0.876 \| good	7.176 \| good	0.336 \| good
2025-06-08T06:00:00.000Z	56 \| moderate	11.504 \| good	51.029 \| good	27.861 \| good	1.06 \| good	8.705 \| good	0.338 \| good
2025-06-08T07:00:00.000Z	56 \| moderate	11.617 \| good	51.673 \| good	25.85 \| good	0.697 \| good	4.1 \| good	0.321 \| good
2025-06-08T08:00:00.000Z	56 \| moderate	12.413 \| fine	56.094 \| fine	23.97 \| good	0.895 \| good	5.595 \| good	0.33 \| good
2025-06-08T09:00:00.000Z	60 \| moderate	13.559 \| fine	60.493 \| fine	18.488 \| good	1.092 \| good	7.089 \| good	0.339 \| good
2025-06-08T10:00:00.000Z	58 \| moderate	12.511 \| fine	56.141 \| fine	19.036 \| good	0.726 \| good	3.535 \| good	0.318 \| good
2025-06-08T11:00:00.000Z	56 \| moderate	12.006 \| good	53.741 \| good	20.377 \| good	0.852 \| good	4.346 \| good	0.335 \| good
2025-06-08T12:00:00.000Z	54 \| moderate	11.196 \| good	49.566 \| good	25.74 \| good	0.977 \| good	5.157 \| good	0.351 \| good
2025-06-08T13:00:00.000Z	54 \| moderate	11.309 \| good	49.933 \| good	30.443 \| good	0.703 \| good	2.396 \| good	0.273 \| good
2025-06-08T14:00:00.000Z	56 \| moderate	12.484 \| fine	56.865 \| fine	32.349 \| good	0.765 \| good	2.733 \| good	0.274 \| good
2025-06-08T15:00:00.000Z	58 \| moderate	13.207 \| fine	59.403 \| fine	34.605 \| good	0.826 \| good	3.07 \| good	0.276 \| good
2025-06-08T16:00:00.000Z	62 \| moderate	14.592 \| fine	65.074 \| fine	35.685 \| good	0.646 \| good	2.041 \| good	0.25 \| good
2025-06-08T17:00:00.000Z	64 \| moderate	16.309 \| fine	72.859 \| fine	35.784 \| good	0.677 \| good	2.245 \| good	0.248 \| good
2025-06-08T18:00:00.000Z	67 \| moderate	17.833 \| fine	78.729 \| fine	36.57 \| good	0.707 \| good	2.449 \| good	0.247 \| good
2025-06-08T19:00:00.000Z	66 \| moderate	17.149 \| fine	76.357 \| fine	37.812 \| good	0.678 \| good	3.534 \| good	0.272 \| good
2025-06-08T20:00:00.000Z	67 \| moderate	17.573 \| fine	77.975 \| fine	36.588 \| good	0.721 \| good	3.917 \| good	0.274 \| good
2025-06-08T21:00:00.000Z	66 \| moderate	16.983 \| fine	74.718 \| fine	35.473 \| good	0.764 \| good	4.3 \| good	0.276 \| good
2025-06-08T22:00:00.000Z	66 \| moderate	16.806 \| fine	74.848 \| fine	34.578 \| good	0.816 \| good	7.155 \| good	0.307 \| good
2025-06-08T23:00:00.000Z	67 \| moderate	17.846 \| fine	79.302 \| fine	31.018 \| good	0.852 \| good	8.466 \| good	0.315 \| good
2025-06-09T00:00:00.000Z	64 \| moderate	15.754 \| fine	69.842 \| fine	25.613 \| good	0.888 \| good	9.777 \| good	0.322 \| good
2025-06-09T01:00:00.000Z	60 \| moderate	13.746 \| fine	61.845 \| fine	21.565 \| good	0.841 \| good	9.387 \| good	0.321 \| good
2025-06-09T02:00:00.000Z	54 \| moderate	11.346 \| good	50.315 \| good	22.91 \| good	0.853 \| good	12.369 \| good	0.342 \| good
2025-06-09T03:00:00.000Z	54 \| moderate	11.336 \| good	50.342 \| good	25.294 \| good	0.865 \| good	15.35 \| good	0.362 \| good
2025-06-09T04:00:00.000Z	56 \| moderate	11.923 \| good	52.892 \| good	27.567 \| good	0.769 \| good	4.632 \| good	0.29 \| good
2025-06-09T05:00:00.000Z	56 \| moderate	12.468 \| fine	55.842 \| fine	29.911 \| good	0.749 \| good	4.769 \| good	0.291 \| good
2025-06-09T06:00:00.000Z	54 \| moderate	10.956 \| good	48.457 \| good	32.599 \| good	0.729 \| good	4.907 \| good	0.292 \| good
2025-06-09T07:00:00.000Z	52 \| moderate	10.321 \| good	45.504 \| good	31.846 \| good	0.715 \| good	2.633 \| good	0.265 \| good
2025-06-09T08:00:00.000Z	56 \| moderate	11.512 \| good	50.993 \| good	30.242 \| good	0.715 \| good	2.654 \| good	0.263 \| good
2025-06-09T09:00:00.000Z	56 \| moderate	11.991 \| good	53.854 \| good	25.458 \| good	0.716 \| good	2.676 \| good	0.261 \| good
2025-06-09T10:00:00.000Z	54 \| moderate	11.407 \| good	50.297 \| good	25.131 \| good	0.656 \| good	4.201 \| good	0.256 \| good
2025-06-09T11:00:00.000Z	56 \| moderate	11.634 \| good	51.306 \| good	26.73 \| good	0.675 \| good	4.477 \| good	0.253 \| good
2025-06-09T12:00:00.000Z	58 \| moderate	12.597 \| fine	56.782 \| fine	27.566 \| good	0.694 \| good	4.753 \| good	0.251 \| good
2025-06-09T13:00:00.000Z	56 \| moderate	12.294 \| fine	55.152 \| fine	30.858 \| good	0.635 \| good	4.866 \| good	0.213 \| good
2025-06-09T14:00:00.000Z	52 \| moderate	10.466 \| good	46.444 \| good	33.537 \| good	0.667 \| good	4.968 \| good	0.202 \| good
2025-06-09T15:00:00.000Z	52 \| moderate	10.068 \| good	44.631 \| good	36.376 \| good	0.699 \| good	5.071 \| good	0.192 \| good
2025-06-09T16:00:00.000Z	52 \| moderate	10.27 \| good	45.53 \| good	39.018 \| good	0.646 \| good	3.831 \| good	0.168 \| good
2025-06-09T17:00:00.000Z	52 \| moderate	10.314 \| good	45.613 \| good	40.286 \| good	0.666 \| good	3.88 \| good	0.167 \| good

Lexington

Get reliable air quality data to drive your business

Lexington, Massachusetts air quality map: Stay updated on AQI near you

0.24ppm

How accurate is Massachusetts, USA air quality data?

Air quality and pollutant data for Massachusetts, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.

Source: Ambee Data Sources

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Frequently asked questions

How often is air quality information updated for Lexington, Massachusetts?

The air quality information for Lexington, Massachusetts is updated every hour for accuracy.

What time in the last 24 hours was the air quality in Lexington, Massachusetts at its worst?

In the past 24 hours, the air quality in Lexington, Massachusetts was at its worst at 04:00:00 on 2025-06-07.

When did Lexington, Massachusetts experience the best air quality in the last 24 hours?

In the last 24 hours, the best air quality in Lexington, Massachusetts was observed at 07:00:00 on 2025-06-07.

What is the AQI in Lexington, Massachusetts right now?

As of now, the AQI in Lexington, Massachusetts is 64, indicating Moderate conditions.

What is the most common type of pollution in Lexington, Massachusetts?

Lexington, Massachusetts air has the highest levels of PM2.5.

What should I do in case of poor air quality in Lexington, Massachusetts?

Poor air quality in Lexington, Massachusetts means it's advisable to stay indoors and wear a mask for your protection.

What is the PM_2.5 level in Lexington, Massachusetts at the moment?

PM_2.5 levels in Lexington, Massachusetts are currently 15.564 μg/m³.

What is the PM₁₀ level in Lexington, Massachusetts at the moment?

The PM₁₀ concentration in Lexington, Massachusetts is 43.72 μg/m³ at the moment.

What is the carbon monoxide (CO) level in Lexington, Massachusetts at the moment?

The current carbon monoxide (CO) concentration in Lexington, Massachusetts is 0.244 ppm.

What is the sulfur dioxide (SO₂) level in Lexington, Massachusetts at the moment?

Currently, Lexington, Massachusetts has a sulfur dioxide (SO₂) concentration of 0.712 ppb.

What is the ozone (O₃) level in Lexington, Massachusetts at the moment?

The current ozone (O₃) level in Lexington, Massachusetts at the moment is 21.736 ppm.

What is the nitrogen dioxide (NO₂) level in Lexington, Massachusetts at the moment?

Nitrogen dioxide (NO₂) level in Lexington, Massachusetts at the moment is 12.856 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-05T23:00:00.000Z	84 \| moderate	20.063 \| fine	83.238 \| fine	65.071 \| fine	0.557 \| good	11.402 \| good	0.368 \| good
2025-06-06T00:00:00.000Z	71 \| moderate	18.64 \| fine	73.712 \| fine	61.412 \| fine	0.512 \| good	8.934 \| good	0.381 \| good
2025-06-06T01:00:00.000Z	67 \| moderate	17.664 \| fine	66.147 \| fine	57.273 \| fine	0.568 \| good	7.732 \| good	0.381 \| good
2025-06-06T02:00:00.000Z	71 \| moderate	20.173 \| fine	79.292 \| fine	58.635 \| fine	0.516 \| good	9.928 \| good	0.381 \| good
2025-06-06T03:00:00.000Z	73 \| moderate	20.607 \| fine	90.01 \| fine	59.906 \| fine	0.537 \| good	7.739 \| good	0.392 \| good
2025-06-06T04:00:00.000Z	69 \| moderate	18.521 \| fine	78.106 \| fine	50.449 \| good	0.59 \| good	7.743 \| good	0.364 \| good
2025-06-06T05:00:00.000Z	71 \| moderate	19.996 \| fine	82.702 \| fine	51.541 \| good	0.729 \| good	12.466 \| good	0.273 \| good
2025-06-06T06:00:00.000Z	71 \| moderate	19.985 \| fine	63.41 \| fine	41.472 \| good	0.734 \| good	18.167 \| good	0.206 \| good
2025-06-06T07:00:00.000Z	66 \| moderate	16.582 \| fine	41.488 \| good	46.903 \| good	0.591 \| good	6.705 \| good	0.274 \| good
2025-06-06T08:00:00.000Z	64 \| moderate	15.94 \| fine	71.252 \| fine	37.497 \| good	0.573 \| good	7.864 \| good	0.258 \| good
2025-06-06T09:00:00.000Z	60 \| moderate	14.169 \| fine	55.562 \| fine	36.972 \| good	0.632 \| good	10.015 \| good	0.283 \| good
2025-06-06T10:00:00.000Z	62 \| moderate	14.723 \| fine	47.189 \| good	39.38 \| good	0.627 \| good	7.161 \| good	0.283 \| good
2025-06-06T11:00:00.000Z	66 \| moderate	17.11 \| fine	62.255 \| fine	40.464 \| good	0.569 \| good	10.424 \| good	0.277 \| good
2025-06-06T12:00:00.000Z	67 \| moderate	18.332 \| fine	78.041 \| fine	42.042 \| good	0.59 \| good	13.155 \| good	0.26 \| good
2025-06-06T13:00:00.000Z	66 \| moderate	17.072 \| fine	62.936 \| fine	32.715 \| good	0.626 \| good	10.565 \| good	0.24 \| good
2025-06-06T14:00:00.000Z	66 \| moderate	16.967 \| fine	53.148 \| good	41.111 \| good	0.561 \| good	8.091 \| good	0.24 \| good
2025-06-06T15:00:00.000Z	60 \| moderate	14.207 \| fine	45.638 \| good	40.646 \| good	0.415 \| good	9.173 \| good	0.24 \| good
2025-06-06T16:00:00.000Z	60 \| moderate	14.194 \| fine	59.355 \| fine	43.681 \| good	0.522 \| good	8.113 \| good	0.24 \| good
2025-06-06T17:00:00.000Z	62 \| moderate	14.531 \| fine	58.842 \| fine	53.664 \| good	0.465 \| good	6.531 \| good	0.207 \| good
2025-06-06T18:00:00.000Z	58 \| moderate	12.926 \| fine	48.198 \| good	52.182 \| good	0.528 \| good	6.238 \| good	0.24 \| good
2025-06-06T19:00:00.000Z	60 \| moderate	13.717 \| fine	45.309 \| good	38.967 \| good	0.461 \| good	8.19 \| good	0.261 \| good
2025-06-06T20:00:00.000Z	64 \| moderate	15.743 \| fine	60.241 \| fine	36.623 \| good	0.603 \| good	9.221 \| good	0.217 \| good
2025-06-06T21:00:00.000Z	64 \| moderate	15.549 \| fine	65.183 \| fine	33.548 \| good	0.828 \| good	10.865 \| good	0.273 \| good
2025-06-06T22:00:00.000Z	64 \| moderate	15.516 \| fine	58.64 \| fine	33.504 \| good	0.628 \| good	8.994 \| good	0.26 \| good
2025-06-06T23:00:00.000Z	64 \| moderate	16.254 \| fine	49.793 \| good	27.602 \| good	0.729 \| good	12.02 \| good	0.236 \| good
2025-06-07T00:00:00.000Z	67 \| moderate	17.509 \| fine	56.677 \| fine	26.655 \| good	0.756 \| good	22.623 \| good	0.269 \| good
2025-06-07T01:00:00.000Z	66 \| moderate	16.578 \| fine	56.362 \| fine	27.845 \| good	0.635 \| good	17.281 \| good	0.292 \| good
2025-06-07T02:00:00.000Z	62 \| moderate	15.405 \| fine	48.075 \| good	36.737 \| good	0.567 \| good	14.684 \| good	0.315 \| good
2025-06-07T03:00:00.000Z	67 \| moderate	18.388 \| fine	65.772 \| fine	34.84 \| good	0.706 \| good	24.184 \| good	0.263 \| good
2025-06-07T04:00:00.000Z	69 \| moderate	18.852 \| fine	81.497 \| fine	37.555 \| good	0.693 \| good	14.47 \| good	0.257 \| good
2025-06-07T05:00:00.000Z	60 \| moderate	13.885 \| fine	60.779 \| fine	33.27 \| good	0.964 \| good	12.745 \| good	0.143 \| good
2025-06-07T06:00:00.000Z	38 \| good	7.199 \| good	29.416 \| good	32.855 \| good	0.948 \| good	28.109 \| good	0.143 \| good
2025-06-07T07:00:00.000Z	33 \| good	5.792 \| good	20.952 \| good	31.535 \| good	0.546 \| good	4.977 \| good	0.247 \| good
2025-06-07T08:00:00.000Z	66 \| moderate	17.049 \| fine	79.527 \| fine	29.007 \| good	0.584 \| good	5.348 \| good	0.247 \| good
2025-06-07T09:00:00.000Z	62 \| moderate	15.416 \| fine	41.206 \| good	25.057 \| good	0.607 \| good	6.159 \| good	0.264 \| good
2025-06-07T10:00:00.000Z	62 \| moderate	15.283 \| fine	60.953 \| fine	25.757 \| good	0.592 \| good	4.037 \| good	0.197 \| good
2025-06-07T11:00:00.000Z	60 \| moderate	14.033 \| fine	59.749 \| fine	19.876 \| good	0.549 \| good	4.09 \| good	0.2 \| good
2025-06-07T12:00:00.000Z	56 \| moderate	11.876 \| good	38.463 \| good	20.293 \| good	0.635 \| good	4.536 \| good	0.2 \| good
2025-06-07T13:00:00.000Z	62 \| moderate	14.515 \| fine	41.354 \| good	21.247 \| good	0.654 \| good	9.939 \| good	0.277 \| good
2025-06-07T14:00:00.000Z	66 \| moderate	17.153 \| fine	60.606 \| fine	16.187 \| good	0.732 \| good	9.75 \| good	0.277 \| good
2025-06-07T15:00:00.000Z	67 \| moderate	18.418 \| fine	55.398 \| fine	21.241 \| good	0.682 \| good	7.711 \| good	0.255 \| good
2025-06-07T16:00:00.000Z	64 \| moderate	15.564 \| fine	43.72 \| good	21.736 \| good	0.712 \| good	12.856 \| good	0.244 \| good
2025-06-07T17:00:00.000Z	66 \| moderate	17.046 \| fine	55.479 \| fine	26.354 \| good	0.87 \| good	16.346 \| good	0.244 \| good
2025-06-07T18:00:00.000Z	38 \| good	7.053 \| good	23.463 \| good	27.067 \| good	0.809 \| good	13.717 \| good	0.211 \| good
2025-06-07T19:00:00.000Z	58 \| moderate	13.192 \| fine	61.317 \| fine	26.944 \| good	0.648 \| good	11.461 \| good	0.197 \| good
2025-06-07T20:00:00.000Z	49 \| good	8.837 \| good	19.932 \| good	29.456 \| good	0.65 \| good	9.092 \| good	0.25 \| good
2025-06-07T21:00:00.000Z	52 \| moderate	9.765 \| good	34.041 \| good	29.025 \| good	0.636 \| good	13.026 \| good	0.296 \| good
2025-06-07T17:00:00.000Z	64 \| moderate	15.564 \| fine	43.72 \| good	21.736 \| good	0.712 \| good	12.856 \| good	0.244 \| good
2025-06-07T18:00:00.000Z	52 \| moderate	9.583 \| good	42.626 \| good	28.965 \| good	0.968 \| good	5.928 \| good	0.23 \| good
2025-06-07T19:00:00.000Z	32 \| good	5.41 \| good	23.394 \| good	34.746 \| good	0.773 \| good	6.317 \| good	0.243 \| good
2025-06-07T20:00:00.000Z	33 \| good	4.499 \| good	19.467 \| good	35.684 \| good	1.08 \| good	9.039 \| good	0.258 \| good
2025-06-07T21:00:00.000Z	31 \| good	5.202 \| good	22.284 \| good	32.734 \| good	1.388 \| good	11.762 \| good	0.273 \| good
2025-06-07T22:00:00.000Z	44 \| good	8.197 \| good	36.006 \| good	34.313 \| good	0.832 \| good	9.805 \| good	0.282 \| good
2025-06-07T23:00:00.000Z	54 \| moderate	11.291 \| good	50.495 \| good	35.184 \| good	1.138 \| good	12.437 \| good	0.289 \| good
2025-06-08T00:00:00.000Z	44 \| good	7.743 \| good	34.168 \| good	35.656 \| good	1.444 \| good	15.068 \| good	0.296 \| good
2025-06-08T01:00:00.000Z	52 \| moderate	9.939 \| good	44.119 \| good	31.006 \| good	0.724 \| good	7.728 \| good	0.3 \| good
2025-06-08T02:00:00.000Z	56 \| moderate	12.023 \| good	53.493 \| good	29.973 \| good	0.863 \| good	9.803 \| good	0.304 \| good
2025-06-08T03:00:00.000Z	56 \| moderate	12.465 \| fine	55.535 \| fine	31.356 \| good	1.003 \| good	11.879 \| good	0.308 \| good
2025-06-08T04:00:00.000Z	56 \| moderate	11.506 \| good	50.989 \| good	31.753 \| good	0.692 \| good	5.648 \| good	0.335 \| good
2025-06-08T05:00:00.000Z	54 \| moderate	11.117 \| good	49.413 \| good	30.624 \| good	0.876 \| good	7.176 \| good	0.336 \| good
2025-06-08T06:00:00.000Z	56 \| moderate	11.504 \| good	51.029 \| good	27.861 \| good	1.06 \| good	8.705 \| good	0.338 \| good
2025-06-08T07:00:00.000Z	56 \| moderate	11.617 \| good	51.673 \| good	25.85 \| good	0.697 \| good	4.1 \| good	0.321 \| good
2025-06-08T08:00:00.000Z	56 \| moderate	12.413 \| fine	56.094 \| fine	23.97 \| good	0.895 \| good	5.595 \| good	0.33 \| good
2025-06-08T09:00:00.000Z	60 \| moderate	13.559 \| fine	60.493 \| fine	18.488 \| good	1.092 \| good	7.089 \| good	0.339 \| good
2025-06-08T10:00:00.000Z	58 \| moderate	12.511 \| fine	56.141 \| fine	19.036 \| good	0.726 \| good	3.535 \| good	0.318 \| good
2025-06-08T11:00:00.000Z	56 \| moderate	12.006 \| good	53.741 \| good	20.377 \| good	0.852 \| good	4.346 \| good	0.335 \| good
2025-06-08T12:00:00.000Z	54 \| moderate	11.196 \| good	49.566 \| good	25.74 \| good	0.977 \| good	5.157 \| good	0.351 \| good
2025-06-08T13:00:00.000Z	54 \| moderate	11.309 \| good	49.933 \| good	30.443 \| good	0.703 \| good	2.396 \| good	0.273 \| good
2025-06-08T14:00:00.000Z	56 \| moderate	12.484 \| fine	56.865 \| fine	32.349 \| good	0.765 \| good	2.733 \| good	0.274 \| good
2025-06-08T15:00:00.000Z	58 \| moderate	13.207 \| fine	59.403 \| fine	34.605 \| good	0.826 \| good	3.07 \| good	0.276 \| good
2025-06-08T16:00:00.000Z	62 \| moderate	14.592 \| fine	65.074 \| fine	35.685 \| good	0.646 \| good	2.041 \| good	0.25 \| good
2025-06-08T17:00:00.000Z	64 \| moderate	16.309 \| fine	72.859 \| fine	35.784 \| good	0.677 \| good	2.245 \| good	0.248 \| good
2025-06-08T18:00:00.000Z	67 \| moderate	17.833 \| fine	78.729 \| fine	36.57 \| good	0.707 \| good	2.449 \| good	0.247 \| good
2025-06-08T19:00:00.000Z	66 \| moderate	17.149 \| fine	76.357 \| fine	37.812 \| good	0.678 \| good	3.534 \| good	0.272 \| good
2025-06-08T20:00:00.000Z	67 \| moderate	17.573 \| fine	77.975 \| fine	36.588 \| good	0.721 \| good	3.917 \| good	0.274 \| good
2025-06-08T21:00:00.000Z	66 \| moderate	16.983 \| fine	74.718 \| fine	35.473 \| good	0.764 \| good	4.3 \| good	0.276 \| good
2025-06-08T22:00:00.000Z	66 \| moderate	16.806 \| fine	74.848 \| fine	34.578 \| good	0.816 \| good	7.155 \| good	0.307 \| good
2025-06-08T23:00:00.000Z	67 \| moderate	17.846 \| fine	79.302 \| fine	31.018 \| good	0.852 \| good	8.466 \| good	0.315 \| good
2025-06-09T00:00:00.000Z	64 \| moderate	15.754 \| fine	69.842 \| fine	25.613 \| good	0.888 \| good	9.777 \| good	0.322 \| good
2025-06-09T01:00:00.000Z	60 \| moderate	13.746 \| fine	61.845 \| fine	21.565 \| good	0.841 \| good	9.387 \| good	0.321 \| good
2025-06-09T02:00:00.000Z	54 \| moderate	11.346 \| good	50.315 \| good	22.91 \| good	0.853 \| good	12.369 \| good	0.342 \| good
2025-06-09T03:00:00.000Z	54 \| moderate	11.336 \| good	50.342 \| good	25.294 \| good	0.865 \| good	15.35 \| good	0.362 \| good
2025-06-09T04:00:00.000Z	56 \| moderate	11.923 \| good	52.892 \| good	27.567 \| good	0.769 \| good	4.632 \| good	0.29 \| good
2025-06-09T05:00:00.000Z	56 \| moderate	12.468 \| fine	55.842 \| fine	29.911 \| good	0.749 \| good	4.769 \| good	0.291 \| good
2025-06-09T06:00:00.000Z	54 \| moderate	10.956 \| good	48.457 \| good	32.599 \| good	0.729 \| good	4.907 \| good	0.292 \| good
2025-06-09T07:00:00.000Z	52 \| moderate	10.321 \| good	45.504 \| good	31.846 \| good	0.715 \| good	2.633 \| good	0.265 \| good
2025-06-09T08:00:00.000Z	56 \| moderate	11.512 \| good	50.993 \| good	30.242 \| good	0.715 \| good	2.654 \| good	0.263 \| good
2025-06-09T09:00:00.000Z	56 \| moderate	11.991 \| good	53.854 \| good	25.458 \| good	0.716 \| good	2.676 \| good	0.261 \| good
2025-06-09T10:00:00.000Z	54 \| moderate	11.407 \| good	50.297 \| good	25.131 \| good	0.656 \| good	4.201 \| good	0.256 \| good
2025-06-09T11:00:00.000Z	56 \| moderate	11.634 \| good	51.306 \| good	26.73 \| good	0.675 \| good	4.477 \| good	0.253 \| good
2025-06-09T12:00:00.000Z	58 \| moderate	12.597 \| fine	56.782 \| fine	27.566 \| good	0.694 \| good	4.753 \| good	0.251 \| good
2025-06-09T13:00:00.000Z	56 \| moderate	12.294 \| fine	55.152 \| fine	30.858 \| good	0.635 \| good	4.866 \| good	0.213 \| good
2025-06-09T14:00:00.000Z	52 \| moderate	10.466 \| good	46.444 \| good	33.537 \| good	0.667 \| good	4.968 \| good	0.202 \| good
2025-06-09T15:00:00.000Z	52 \| moderate	10.068 \| good	44.631 \| good	36.376 \| good	0.699 \| good	5.071 \| good	0.192 \| good
2025-06-09T16:00:00.000Z	52 \| moderate	10.27 \| good	45.53 \| good	39.018 \| good	0.646 \| good	3.831 \| good	0.168 \| good
2025-06-09T17:00:00.000Z	52 \| moderate	10.314 \| good	45.613 \| good	40.286 \| good	0.666 \| good	3.88 \| good	0.167 \| good

Real-time air quality index in Lexington, Massachusetts today

Major air pollutants in Lexington, Massachusetts

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Lexington, Massachusetts air quality forecast and history

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Lexington, Massachusetts air quality map: Stay updated on AQI near you

Air quality in nearby cities

Bedford, Massachusetts

Arlington, Massachusetts

Burlington, Massachusetts

Belmont, Massachusetts

Woburn, Massachusetts

Winchester, Massachusetts

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Frequently asked questions

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What is the AQI in Lexington, Massachusetts right now?

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What is the PM2.5 level in Lexington, Massachusetts at the moment?

What is the PM10 level in Lexington, Massachusetts at the moment?

What is the carbon monoxide (CO) level in Lexington, Massachusetts at the moment?

What is the sulfur dioxide (SO2) level in Lexington, Massachusetts at the moment?

What is the ozone (O3) level in Lexington, Massachusetts at the moment?

What is the nitrogen dioxide (NO2) level in Lexington, Massachusetts at the moment?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What is the PM_2.5 level in Lexington, Massachusetts at the moment?

What is the PM₁₀ level in Lexington, Massachusetts at the moment?

What is the sulfur dioxide (SO₂) level in Lexington, Massachusetts at the moment?

What is the ozone (O₃) level in Lexington, Massachusetts at the moment?

What is the nitrogen dioxide (NO₂) level in Lexington, Massachusetts at the moment?