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

Currently, Lexington, Massachusetts has a sulfur dioxide (SO2) concentration of 0.474 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 36.701 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 7.274 ppb.

Live 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)

Good

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)

9.34 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

39.31 μg/m³

155

255

425

605+

Ozone (O₃)

17.53 ppb

201

201+

Sulfur Dioxide (SO₂)

0.51 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

15.06 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.61 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
2025-09-13T05:00:00.000Z	27 \| good	5.473 \| good	24.65 \| good	16.283 \| good	0.407 \| good	10.696 \| good	0.409 \| good
2025-09-13T06:00:00.000Z	27 \| good	5.461 \| good	26.96 \| good	10.278 \| good	0.444 \| good	10.568 \| good	0.376 \| good
2025-09-13T07:00:00.000Z	33 \| good	5.631 \| good	21.777 \| good	7.029 \| good	0.399 \| good	8.777 \| good	0.346 \| good
2025-09-13T08:00:00.000Z	33 \| good	5.748 \| good	26.066 \| good	7.654 \| good	0.415 \| good	7.537 \| good	0.32 \| good
2025-09-13T09:00:00.000Z	33 \| good	6.04 \| good	26.082 \| good	7 \| good	0.426 \| good	7.235 \| good	0.273 \| good
2025-09-13T10:00:00.000Z	33 \| good	6.34 \| good	28.273 \| good	5.624 \| good	0.426 \| good	7.981 \| good	0.276 \| good
2025-09-13T11:00:00.000Z	33 \| good	6.376 \| good	24.429 \| good	5.519 \| good	0.42 \| good	7.619 \| good	0.296 \| good
2025-09-13T12:00:00.000Z	33 \| good	6.034 \| good	22.711 \| good	6.04 \| good	0.523 \| good	10.534 \| good	0.386 \| good
2025-09-13T13:00:00.000Z	33 \| good	6.011 \| good	28.435 \| good	12.225 \| good	0.604 \| good	10.326 \| good	0.329 \| good
2025-09-13T14:00:00.000Z	38 \| good	6.584 \| good	25.352 \| good	13.148 \| good	0.546 \| good	9.646 \| good	0.23 \| good
2025-09-13T15:00:00.000Z	33 \| good	6.179 \| good	26.446 \| good	23.699 \| good	0.48 \| good	6.484 \| good	0.187 \| good
2025-09-13T16:00:00.000Z	33 \| good	6.057 \| good	26.384 \| good	24.87 \| good	0.362 \| good	4.849 \| good	0.187 \| good
2025-09-13T17:00:00.000Z	33 \| good	6.055 \| good	25.75 \| good	30.602 \| good	0.55 \| good	3.611 \| good	0.187 \| good
2025-09-13T18:00:00.000Z	33 \| good	5.611 \| good	22.803 \| good	33.294 \| good	0.462 \| good	3.387 \| good	0.187 \| good
2025-09-13T19:00:00.000Z	33 \| good	5.88 \| good	17.999 \| good	31.643 \| good	0.46 \| good	3.58 \| good	0.187 \| good
2025-09-13T20:00:00.000Z	38 \| good	6.74 \| good	35.021 \| good	32.742 \| good	0.429 \| good	5.619 \| good	0.22 \| good
2025-09-13T21:00:00.000Z	33 \| good	6.448 \| good	23.276 \| good	32.253 \| good	0.485 \| good	11.33 \| good	0.253 \| good
2025-09-13T22:00:00.000Z	33 \| good	5.375 \| good	21.104 \| good	35.529 \| good	0.493 \| good	8.369 \| good	0.253 \| good
2025-09-13T23:00:00.000Z	33 \| good	6.239 \| good	26.73 \| good	33.254 \| good	0.448 \| good	5.427 \| good	0.2 \| good
2025-09-14T00:00:00.000Z	33 \| good	6.09 \| good	24.192 \| good	32.994 \| good	0.402 \| good	5.249 \| good	0.244 \| good
2025-09-14T01:00:00.000Z	33 \| good	6.203 \| good	24.497 \| good	29.608 \| good	0.405 \| good	6.274 \| good	0.233 \| good
2025-09-14T02:00:00.000Z	33 \| good	5.989 \| good	20.382 \| good	33.264 \| good	0.461 \| good	5.888 \| good	0.233 \| good
2025-09-14T03:00:00.000Z	23 \| good	3.467 \| good	15.444 \| good	25.167 \| good	0.93 \| good	8.054 \| good	0.178 \| good
2025-09-14T04:00:00.000Z	33 \| good	5.774 \| good	25.188 \| good	27.139 \| good	0.452 \| good	5.87 \| good	0.299 \| good
2025-09-14T05:00:00.000Z	33 \| good	5.545 \| good	23.678 \| good	24.641 \| good	0.361 \| good	5.052 \| good	0.233 \| good
2025-09-14T06:00:00.000Z	27 \| good	5.38 \| good	20.991 \| good	22.749 \| good	0.416 \| good	3.035 \| good	0.233 \| good
2025-09-14T07:00:00.000Z	27 \| good	5.154 \| good	21.86 \| good	23.649 \| good	0.422 \| good	3.037 \| good	0.266 \| good
2025-09-14T08:00:00.000Z	27 \| good	5.197 \| good	21.395 \| good	19.967 \| good	0.454 \| good	6.895 \| good	0.266 \| good
2025-09-14T09:00:00.000Z	27 \| good	5.414 \| good	18.61 \| good	21.196 \| good	0.398 \| good	3.23 \| good	0.233 \| good
2025-09-14T10:00:00.000Z	33 \| good	5.532 \| good	20.813 \| good	20.138 \| good	0.396 \| good	3.931 \| good	0.22 \| good
2025-09-14T11:00:00.000Z	33 \| good	5.636 \| good	23.533 \| good	15.466 \| good	0.386 \| good	4.591 \| good	0.23 \| good
2025-09-14T12:00:00.000Z	33 \| good	5.972 \| good	20.702 \| good	21.326 \| good	0.383 \| good	7.521 \| good	0.253 \| good
2025-09-14T13:00:00.000Z	33 \| good	5.839 \| good	25.064 \| good	22.189 \| good	0.389 \| good	7.951 \| good	0.343 \| good
2025-09-14T14:00:00.000Z	33 \| good	5.729 \| good	24.111 \| good	21.805 \| good	0.383 \| good	4.422 \| good	0.277 \| good
2025-09-14T15:00:00.000Z	33 \| good	6.026 \| good	23.434 \| good	22.435 \| good	0.414 \| good	3.867 \| good	0.266 \| good
2025-09-14T16:00:00.000Z	33 \| good	6.36 \| good	22.664 \| good	26.1 \| good	0.411 \| good	2.794 \| good	0.233 \| good
2025-09-14T17:00:00.000Z	38 \| good	6.801 \| good	20.357 \| good	33.518 \| good	0.42 \| good	1.984 \| good	0.2 \| good
2025-09-14T18:00:00.000Z	38 \| good	6.722 \| good	12.931 \| good	40.026 \| good	0.438 \| good	2.975 \| good	0.233 \| good
2025-09-14T19:00:00.000Z	44 \| good	8.073 \| good	28.46 \| good	39.758 \| good	0.473 \| good	4.914 \| good	0.233 \| good
2025-09-14T20:00:00.000Z	40 \| good	7.328 \| good	32.832 \| good	43.409 \| good	0.524 \| good	7.506 \| good	0.244 \| good
2025-09-14T21:00:00.000Z	49 \| good	8.525 \| good	37.171 \| good	42.039 \| good	0.523 \| good	6.037 \| good	0.244 \| good
2025-09-14T22:00:00.000Z	49 \| good	9.406 \| good	36.266 \| good	41.348 \| good	0.515 \| good	6.651 \| good	0.244 \| good
2025-09-14T23:00:00.000Z	49 \| good	9.127 \| good	36.883 \| good	36.557 \| good	0.62 \| good	8.9 \| good	0.221 \| good
2025-09-15T00:00:00.000Z	49 \| good	9.151 \| good	38.194 \| good	32.557 \| good	0.511 \| good	10.092 \| good	0.308 \| good
2025-09-15T01:00:00.000Z	52 \| moderate	9.959 \| good	41.06 \| good	26.433 \| good	0.497 \| good	14.566 \| good	0.351 \| good
2025-09-15T02:00:00.000Z	52 \| moderate	10.194 \| good	30.599 \| good	27.431 \| good	0.492 \| good	15.1 \| good	0.461 \| good
2025-09-15T03:00:00.000Z	49 \| good	9.335 \| good	39.308 \| good	17.531 \| good	0.512 \| good	15.059 \| good	0.615 \| good
2025-09-15T04:00:00.000Z	54 \| moderate	10.554 \| good	36.554 \| good	15.504 \| good	0.475 \| good	15.575 \| good	0.66 \| good
2025-09-15T04:00:00.000Z	49 \| good	9.335 \| good	39.308 \| good	17.531 \| good	0.512 \| good	15.059 \| good	0.615 \| good
2025-09-12T00:00:00.000Z	54 \| moderate	10.958 \| good	48.795 \| good	20.151 \| good	1.1 \| good	21.889 \| good	0.344 \| good
2025-09-12T01:00:00.000Z	56 \| moderate	12.344 \| fine	56.201 \| fine	19.132 \| good	1.044 \| good	19.453 \| good	0.326 \| good
2025-09-12T02:00:00.000Z	56 \| moderate	11.54 \| good	51.194 \| good	18.706 \| good	0.987 \| good	17.017 \| good	0.307 \| good
2025-09-12T03:00:00.000Z	56 \| moderate	11.772 \| good	51.943 \| good	16.631 \| good	0.931 \| good	14.581 \| good	0.289 \| good
2025-09-12T04:00:00.000Z	52 \| moderate	10.259 \| good	45.222 \| good	19.561 \| good	0.781 \| good	10.848 \| good	0.253 \| good
2025-09-12T05:00:00.000Z	52 \| moderate	10.497 \| good	46.4 \| good	20.988 \| good	0.631 \| good	7.115 \| good	0.218 \| good
2025-09-12T06:00:00.000Z	52 \| moderate	10.071 \| good	44.634 \| good	20.133 \| good	0.481 \| good	3.383 \| good	0.182 \| good
2025-09-12T07:00:00.000Z	52 \| moderate	10.127 \| good	45.357 \| good	17.448 \| good	0.491 \| good	3.125 \| good	0.177 \| good
2025-09-12T08:00:00.000Z	54 \| moderate	10.543 \| good	46.861 \| good	13.797 \| good	0.501 \| good	2.867 \| good	0.171 \| good
2025-09-12T09:00:00.000Z	33 \| good	6.314 \| good	28.348 \| good	9.233 \| good	0.512 \| good	2.61 \| good	0.166 \| good
2025-09-12T10:00:00.000Z	33 \| good	6.231 \| good	27.909 \| good	6.717 \| good	0.553 \| good	3.308 \| good	0.174 \| good
2025-09-12T11:00:00.000Z	33 \| good	6.181 \| good	27.561 \| good	7.811 \| good	0.594 \| good	4.006 \| good	0.182 \| good
2025-09-12T12:00:00.000Z	33 \| good	6.296 \| good	28.175 \| good	12.676 \| good	0.635 \| good	4.704 \| good	0.19 \| good
2025-09-12T13:00:00.000Z	33 \| good	6.289 \| good	28.269 \| good	18.343 \| good	0.591 \| good	3.785 \| good	0.179 \| good
2025-09-12T14:00:00.000Z	27 \| good	5.405 \| good	23.04 \| good	22.745 \| good	0.547 \| good	2.866 \| good	0.168 \| good
2025-09-12T15:00:00.000Z	27 \| good	5.162 \| good	22.586 \| good	28.768 \| good	0.502 \| good	1.947 \| good	0.156 \| good
2025-09-12T16:00:00.000Z	33 \| good	6.388 \| good	28.685 \| good	34.679 \| good	0.482 \| good	1.747 \| good	0.154 \| good
2025-09-12T17:00:00.000Z	38 \| good	6.807 \| good	30.089 \| good	40.646 \| good	0.462 \| good	1.547 \| good	0.153 \| good
2025-09-12T18:00:00.000Z	42 \| good	7.132 \| good	31.88 \| good	44.55 \| good	0.442 \| good	1.347 \| good	0.151 \| good
2025-09-12T19:00:00.000Z	44 \| good	7.13 \| good	31.879 \| good	46.663 \| good	0.476 \| good	1.662 \| good	0.152 \| good
2025-09-12T20:00:00.000Z	39 \| good	7.231 \| good	31.827 \| good	42.341 \| good	0.509 \| good	1.977 \| good	0.154 \| good
2025-09-12T21:00:00.000Z	38 \| good	7.358 \| good	32.621 \| good	31.337 \| good	0.543 \| good	2.292 \| good	0.156 \| good
2025-09-12T22:00:00.000Z	33 \| good	6.107 \| good	27.211 \| good	20.987 \| good	0.666 \| good	5.768 \| good	0.181 \| good
2025-09-12T23:00:00.000Z	33 \| good	5.908 \| good	26.373 \| good	14.067 \| good	0.79 \| good	9.244 \| good	0.205 \| good
2025-09-13T00:00:00.000Z	27 \| good	5.204 \| good	22.448 \| good	11.518 \| good	0.913 \| good	12.72 \| good	0.23 \| good
2025-09-13T01:00:00.000Z	27 \| good	5.366 \| good	22.848 \| good	12.173 \| good	1.004 \| good	14.21 \| good	0.239 \| good
2025-09-13T02:00:00.000Z	27 \| good	5.152 \| good	22.499 \| good	11.566 \| good	1.095 \| good	15.701 \| good	0.248 \| good
2025-09-13T03:00:00.000Z	33 \| good	5.831 \| good	25.96 \| good	9.647 \| good	1.185 \| good	17.191 \| good	0.258 \| good
2025-09-13T04:00:00.000Z	38 \| good	6.904 \| good	30.555 \| good	9.533 \| good	1.191 \| good	17.239 \| good	0.261 \| good
2025-09-13T05:00:00.000Z	38 \| good	7.025 \| good	30.989 \| good	9.506 \| good	1.197 \| good	17.287 \| good	0.264 \| good
2025-09-13T06:00:00.000Z	33 \| good	6.444 \| good	28.505 \| good	10.385 \| good	1.203 \| good	17.335 \| good	0.268 \| good
2025-09-13T07:00:00.000Z	27 \| good	5.358 \| good	23.212 \| good	11.468 \| good	1.217 \| good	16.074 \| good	0.258 \| good
2025-09-13T08:00:00.000Z	27 \| good	5.025 \| good	21.491 \| good	11.299 \| good	1.231 \| good	14.814 \| good	0.249 \| good
2025-09-13T09:00:00.000Z	27 \| good	4.871 \| good	21.136 \| good	9.916 \| good	1.245 \| good	13.554 \| good	0.239 \| good
2025-09-13T10:00:00.000Z	27 \| good	5.477 \| good	23.385 \| good	9.738 \| good	1.259 \| good	13.059 \| good	0.257 \| good
2025-09-13T11:00:00.000Z	27 \| good	5.205 \| good	22.253 \| good	10.304 \| good	1.273 \| good	12.565 \| good	0.274 \| good
2025-09-13T12:00:00.000Z	22 \| good	3.994 \| good	17.943 \| good	14.405 \| good	1.287 \| good	12.071 \| good	0.292 \| good
2025-09-13T13:00:00.000Z	27 \| good	4.602 \| good	19.741 \| good	19.914 \| good	1.241 \| good	9.751 \| good	0.254 \| good
2025-09-13T14:00:00.000Z	33 \| good	6.052 \| good	26.992 \| good	27.35 \| good	1.196 \| good	7.431 \| good	0.216 \| good
2025-09-13T15:00:00.000Z	44 \| good	8.165 \| good	35.947 \| good	35.697 \| good	1.15 \| good	5.111 \| good	0.179 \| good
2025-09-13T16:00:00.000Z	44 \| good	8.254 \| good	36.164 \| good	40.108 \| good	1.006 \| good	4.327 \| good	0.173 \| good
2025-09-13T17:00:00.000Z	44 \| good	8.301 \| good	36.17 \| good	41.171 \| good	0.862 \| good	3.543 \| good	0.167 \| good
2025-09-13T18:00:00.000Z	44 \| good	8.014 \| good	35.332 \| good	40.615 \| good	0.718 \| good	2.759 \| good	0.161 \| good
2025-09-13T19:00:00.000Z	54 \| moderate	10.992 \| good	48.864 \| good	37.437 \| good	0.709 \| good	3.06 \| good	0.164 \| good
2025-09-13T20:00:00.000Z	60 \| moderate	14.242 \| fine	63.879 \| fine	35.395 \| good	0.7 \| good	3.361 \| good	0.166 \| good
2025-09-13T21:00:00.000Z	58 \| moderate	12.732 \| fine	56.984 \| fine	35.519 \| good	0.692 \| good	3.662 \| good	0.169 \| good
2025-09-13T22:00:00.000Z	52 \| moderate	10.344 \| good	46.098 \| good	34.985 \| good	0.769 \| good	6.252 \| good	0.191 \| good
2025-09-13T23:00:00.000Z	44 \| good	8.472 \| good	37.573 \| good	37.175 \| good	0.846 \| good	8.841 \| good	0.213 \| good

Lexington

Get reliable air quality data to drive your business

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

0.21ppm

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 10:00:00 on 2025-09-11.

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 04:00:00 on 2025-09-11.

What is the AQI in Lexington, Massachusetts right now?

As of now, the AQI in Lexington, Massachusetts is 34, indicating Good conditions.

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

Lexington, Massachusetts air has the highest levels of O3.

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 4.457 μg/m³.

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

The PM₁₀ concentration in Lexington, Massachusetts is 12.664 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 0.211 ppm.

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

Currently, Lexington, Massachusetts has a sulfur dioxide (SO₂) concentration of 0.474 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 36.701 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 7.274 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-09-13T05:00:00.000Z	27 \| good	5.473 \| good	24.65 \| good	16.283 \| good	0.407 \| good	10.696 \| good	0.409 \| good
2025-09-13T06:00:00.000Z	27 \| good	5.461 \| good	26.96 \| good	10.278 \| good	0.444 \| good	10.568 \| good	0.376 \| good
2025-09-13T07:00:00.000Z	33 \| good	5.631 \| good	21.777 \| good	7.029 \| good	0.399 \| good	8.777 \| good	0.346 \| good
2025-09-13T08:00:00.000Z	33 \| good	5.748 \| good	26.066 \| good	7.654 \| good	0.415 \| good	7.537 \| good	0.32 \| good
2025-09-13T09:00:00.000Z	33 \| good	6.04 \| good	26.082 \| good	7 \| good	0.426 \| good	7.235 \| good	0.273 \| good
2025-09-13T10:00:00.000Z	33 \| good	6.34 \| good	28.273 \| good	5.624 \| good	0.426 \| good	7.981 \| good	0.276 \| good
2025-09-13T11:00:00.000Z	33 \| good	6.376 \| good	24.429 \| good	5.519 \| good	0.42 \| good	7.619 \| good	0.296 \| good
2025-09-13T12:00:00.000Z	33 \| good	6.034 \| good	22.711 \| good	6.04 \| good	0.523 \| good	10.534 \| good	0.386 \| good
2025-09-13T13:00:00.000Z	33 \| good	6.011 \| good	28.435 \| good	12.225 \| good	0.604 \| good	10.326 \| good	0.329 \| good
2025-09-13T14:00:00.000Z	38 \| good	6.584 \| good	25.352 \| good	13.148 \| good	0.546 \| good	9.646 \| good	0.23 \| good
2025-09-13T15:00:00.000Z	33 \| good	6.179 \| good	26.446 \| good	23.699 \| good	0.48 \| good	6.484 \| good	0.187 \| good
2025-09-13T16:00:00.000Z	33 \| good	6.057 \| good	26.384 \| good	24.87 \| good	0.362 \| good	4.849 \| good	0.187 \| good
2025-09-13T17:00:00.000Z	33 \| good	6.055 \| good	25.75 \| good	30.602 \| good	0.55 \| good	3.611 \| good	0.187 \| good
2025-09-13T18:00:00.000Z	33 \| good	5.611 \| good	22.803 \| good	33.294 \| good	0.462 \| good	3.387 \| good	0.187 \| good
2025-09-13T19:00:00.000Z	33 \| good	5.88 \| good	17.999 \| good	31.643 \| good	0.46 \| good	3.58 \| good	0.187 \| good
2025-09-13T20:00:00.000Z	38 \| good	6.74 \| good	35.021 \| good	32.742 \| good	0.429 \| good	5.619 \| good	0.22 \| good
2025-09-13T21:00:00.000Z	33 \| good	6.448 \| good	23.276 \| good	32.253 \| good	0.485 \| good	11.33 \| good	0.253 \| good
2025-09-13T22:00:00.000Z	33 \| good	5.375 \| good	21.104 \| good	35.529 \| good	0.493 \| good	8.369 \| good	0.253 \| good
2025-09-13T23:00:00.000Z	33 \| good	6.239 \| good	26.73 \| good	33.254 \| good	0.448 \| good	5.427 \| good	0.2 \| good
2025-09-14T00:00:00.000Z	33 \| good	6.09 \| good	24.192 \| good	32.994 \| good	0.402 \| good	5.249 \| good	0.244 \| good
2025-09-14T01:00:00.000Z	33 \| good	6.203 \| good	24.497 \| good	29.608 \| good	0.405 \| good	6.274 \| good	0.233 \| good
2025-09-14T02:00:00.000Z	33 \| good	5.989 \| good	20.382 \| good	33.264 \| good	0.461 \| good	5.888 \| good	0.233 \| good
2025-09-14T03:00:00.000Z	23 \| good	3.467 \| good	15.444 \| good	25.167 \| good	0.93 \| good	8.054 \| good	0.178 \| good
2025-09-14T04:00:00.000Z	33 \| good	5.774 \| good	25.188 \| good	27.139 \| good	0.452 \| good	5.87 \| good	0.299 \| good
2025-09-14T05:00:00.000Z	33 \| good	5.545 \| good	23.678 \| good	24.641 \| good	0.361 \| good	5.052 \| good	0.233 \| good
2025-09-14T06:00:00.000Z	27 \| good	5.38 \| good	20.991 \| good	22.749 \| good	0.416 \| good	3.035 \| good	0.233 \| good
2025-09-14T07:00:00.000Z	27 \| good	5.154 \| good	21.86 \| good	23.649 \| good	0.422 \| good	3.037 \| good	0.266 \| good
2025-09-14T08:00:00.000Z	27 \| good	5.197 \| good	21.395 \| good	19.967 \| good	0.454 \| good	6.895 \| good	0.266 \| good
2025-09-14T09:00:00.000Z	27 \| good	5.414 \| good	18.61 \| good	21.196 \| good	0.398 \| good	3.23 \| good	0.233 \| good
2025-09-14T10:00:00.000Z	33 \| good	5.532 \| good	20.813 \| good	20.138 \| good	0.396 \| good	3.931 \| good	0.22 \| good
2025-09-14T11:00:00.000Z	33 \| good	5.636 \| good	23.533 \| good	15.466 \| good	0.386 \| good	4.591 \| good	0.23 \| good
2025-09-14T12:00:00.000Z	33 \| good	5.972 \| good	20.702 \| good	21.326 \| good	0.383 \| good	7.521 \| good	0.253 \| good
2025-09-14T13:00:00.000Z	33 \| good	5.839 \| good	25.064 \| good	22.189 \| good	0.389 \| good	7.951 \| good	0.343 \| good
2025-09-14T14:00:00.000Z	33 \| good	5.729 \| good	24.111 \| good	21.805 \| good	0.383 \| good	4.422 \| good	0.277 \| good
2025-09-14T15:00:00.000Z	33 \| good	6.026 \| good	23.434 \| good	22.435 \| good	0.414 \| good	3.867 \| good	0.266 \| good
2025-09-14T16:00:00.000Z	33 \| good	6.36 \| good	22.664 \| good	26.1 \| good	0.411 \| good	2.794 \| good	0.233 \| good
2025-09-14T17:00:00.000Z	38 \| good	6.801 \| good	20.357 \| good	33.518 \| good	0.42 \| good	1.984 \| good	0.2 \| good
2025-09-14T18:00:00.000Z	38 \| good	6.722 \| good	12.931 \| good	40.026 \| good	0.438 \| good	2.975 \| good	0.233 \| good
2025-09-14T19:00:00.000Z	44 \| good	8.073 \| good	28.46 \| good	39.758 \| good	0.473 \| good	4.914 \| good	0.233 \| good
2025-09-14T20:00:00.000Z	40 \| good	7.328 \| good	32.832 \| good	43.409 \| good	0.524 \| good	7.506 \| good	0.244 \| good
2025-09-14T21:00:00.000Z	49 \| good	8.525 \| good	37.171 \| good	42.039 \| good	0.523 \| good	6.037 \| good	0.244 \| good
2025-09-14T22:00:00.000Z	49 \| good	9.406 \| good	36.266 \| good	41.348 \| good	0.515 \| good	6.651 \| good	0.244 \| good
2025-09-14T23:00:00.000Z	49 \| good	9.127 \| good	36.883 \| good	36.557 \| good	0.62 \| good	8.9 \| good	0.221 \| good
2025-09-15T00:00:00.000Z	49 \| good	9.151 \| good	38.194 \| good	32.557 \| good	0.511 \| good	10.092 \| good	0.308 \| good
2025-09-15T01:00:00.000Z	52 \| moderate	9.959 \| good	41.06 \| good	26.433 \| good	0.497 \| good	14.566 \| good	0.351 \| good
2025-09-15T02:00:00.000Z	52 \| moderate	10.194 \| good	30.599 \| good	27.431 \| good	0.492 \| good	15.1 \| good	0.461 \| good
2025-09-15T03:00:00.000Z	49 \| good	9.335 \| good	39.308 \| good	17.531 \| good	0.512 \| good	15.059 \| good	0.615 \| good
2025-09-15T04:00:00.000Z	54 \| moderate	10.554 \| good	36.554 \| good	15.504 \| good	0.475 \| good	15.575 \| good	0.66 \| good
2025-09-15T04:00:00.000Z	49 \| good	9.335 \| good	39.308 \| good	17.531 \| good	0.512 \| good	15.059 \| good	0.615 \| good
2025-09-12T00:00:00.000Z	54 \| moderate	10.958 \| good	48.795 \| good	20.151 \| good	1.1 \| good	21.889 \| good	0.344 \| good
2025-09-12T01:00:00.000Z	56 \| moderate	12.344 \| fine	56.201 \| fine	19.132 \| good	1.044 \| good	19.453 \| good	0.326 \| good
2025-09-12T02:00:00.000Z	56 \| moderate	11.54 \| good	51.194 \| good	18.706 \| good	0.987 \| good	17.017 \| good	0.307 \| good
2025-09-12T03:00:00.000Z	56 \| moderate	11.772 \| good	51.943 \| good	16.631 \| good	0.931 \| good	14.581 \| good	0.289 \| good
2025-09-12T04:00:00.000Z	52 \| moderate	10.259 \| good	45.222 \| good	19.561 \| good	0.781 \| good	10.848 \| good	0.253 \| good
2025-09-12T05:00:00.000Z	52 \| moderate	10.497 \| good	46.4 \| good	20.988 \| good	0.631 \| good	7.115 \| good	0.218 \| good
2025-09-12T06:00:00.000Z	52 \| moderate	10.071 \| good	44.634 \| good	20.133 \| good	0.481 \| good	3.383 \| good	0.182 \| good
2025-09-12T07:00:00.000Z	52 \| moderate	10.127 \| good	45.357 \| good	17.448 \| good	0.491 \| good	3.125 \| good	0.177 \| good
2025-09-12T08:00:00.000Z	54 \| moderate	10.543 \| good	46.861 \| good	13.797 \| good	0.501 \| good	2.867 \| good	0.171 \| good
2025-09-12T09:00:00.000Z	33 \| good	6.314 \| good	28.348 \| good	9.233 \| good	0.512 \| good	2.61 \| good	0.166 \| good
2025-09-12T10:00:00.000Z	33 \| good	6.231 \| good	27.909 \| good	6.717 \| good	0.553 \| good	3.308 \| good	0.174 \| good
2025-09-12T11:00:00.000Z	33 \| good	6.181 \| good	27.561 \| good	7.811 \| good	0.594 \| good	4.006 \| good	0.182 \| good
2025-09-12T12:00:00.000Z	33 \| good	6.296 \| good	28.175 \| good	12.676 \| good	0.635 \| good	4.704 \| good	0.19 \| good
2025-09-12T13:00:00.000Z	33 \| good	6.289 \| good	28.269 \| good	18.343 \| good	0.591 \| good	3.785 \| good	0.179 \| good
2025-09-12T14:00:00.000Z	27 \| good	5.405 \| good	23.04 \| good	22.745 \| good	0.547 \| good	2.866 \| good	0.168 \| good
2025-09-12T15:00:00.000Z	27 \| good	5.162 \| good	22.586 \| good	28.768 \| good	0.502 \| good	1.947 \| good	0.156 \| good
2025-09-12T16:00:00.000Z	33 \| good	6.388 \| good	28.685 \| good	34.679 \| good	0.482 \| good	1.747 \| good	0.154 \| good
2025-09-12T17:00:00.000Z	38 \| good	6.807 \| good	30.089 \| good	40.646 \| good	0.462 \| good	1.547 \| good	0.153 \| good
2025-09-12T18:00:00.000Z	42 \| good	7.132 \| good	31.88 \| good	44.55 \| good	0.442 \| good	1.347 \| good	0.151 \| good
2025-09-12T19:00:00.000Z	44 \| good	7.13 \| good	31.879 \| good	46.663 \| good	0.476 \| good	1.662 \| good	0.152 \| good
2025-09-12T20:00:00.000Z	39 \| good	7.231 \| good	31.827 \| good	42.341 \| good	0.509 \| good	1.977 \| good	0.154 \| good
2025-09-12T21:00:00.000Z	38 \| good	7.358 \| good	32.621 \| good	31.337 \| good	0.543 \| good	2.292 \| good	0.156 \| good
2025-09-12T22:00:00.000Z	33 \| good	6.107 \| good	27.211 \| good	20.987 \| good	0.666 \| good	5.768 \| good	0.181 \| good
2025-09-12T23:00:00.000Z	33 \| good	5.908 \| good	26.373 \| good	14.067 \| good	0.79 \| good	9.244 \| good	0.205 \| good
2025-09-13T00:00:00.000Z	27 \| good	5.204 \| good	22.448 \| good	11.518 \| good	0.913 \| good	12.72 \| good	0.23 \| good
2025-09-13T01:00:00.000Z	27 \| good	5.366 \| good	22.848 \| good	12.173 \| good	1.004 \| good	14.21 \| good	0.239 \| good
2025-09-13T02:00:00.000Z	27 \| good	5.152 \| good	22.499 \| good	11.566 \| good	1.095 \| good	15.701 \| good	0.248 \| good
2025-09-13T03:00:00.000Z	33 \| good	5.831 \| good	25.96 \| good	9.647 \| good	1.185 \| good	17.191 \| good	0.258 \| good
2025-09-13T04:00:00.000Z	38 \| good	6.904 \| good	30.555 \| good	9.533 \| good	1.191 \| good	17.239 \| good	0.261 \| good
2025-09-13T05:00:00.000Z	38 \| good	7.025 \| good	30.989 \| good	9.506 \| good	1.197 \| good	17.287 \| good	0.264 \| good
2025-09-13T06:00:00.000Z	33 \| good	6.444 \| good	28.505 \| good	10.385 \| good	1.203 \| good	17.335 \| good	0.268 \| good
2025-09-13T07:00:00.000Z	27 \| good	5.358 \| good	23.212 \| good	11.468 \| good	1.217 \| good	16.074 \| good	0.258 \| good
2025-09-13T08:00:00.000Z	27 \| good	5.025 \| good	21.491 \| good	11.299 \| good	1.231 \| good	14.814 \| good	0.249 \| good
2025-09-13T09:00:00.000Z	27 \| good	4.871 \| good	21.136 \| good	9.916 \| good	1.245 \| good	13.554 \| good	0.239 \| good
2025-09-13T10:00:00.000Z	27 \| good	5.477 \| good	23.385 \| good	9.738 \| good	1.259 \| good	13.059 \| good	0.257 \| good
2025-09-13T11:00:00.000Z	27 \| good	5.205 \| good	22.253 \| good	10.304 \| good	1.273 \| good	12.565 \| good	0.274 \| good
2025-09-13T12:00:00.000Z	22 \| good	3.994 \| good	17.943 \| good	14.405 \| good	1.287 \| good	12.071 \| good	0.292 \| good
2025-09-13T13:00:00.000Z	27 \| good	4.602 \| good	19.741 \| good	19.914 \| good	1.241 \| good	9.751 \| good	0.254 \| good
2025-09-13T14:00:00.000Z	33 \| good	6.052 \| good	26.992 \| good	27.35 \| good	1.196 \| good	7.431 \| good	0.216 \| good
2025-09-13T15:00:00.000Z	44 \| good	8.165 \| good	35.947 \| good	35.697 \| good	1.15 \| good	5.111 \| good	0.179 \| good
2025-09-13T16:00:00.000Z	44 \| good	8.254 \| good	36.164 \| good	40.108 \| good	1.006 \| good	4.327 \| good	0.173 \| good
2025-09-13T17:00:00.000Z	44 \| good	8.301 \| good	36.17 \| good	41.171 \| good	0.862 \| good	3.543 \| good	0.167 \| good
2025-09-13T18:00:00.000Z	44 \| good	8.014 \| good	35.332 \| good	40.615 \| good	0.718 \| good	2.759 \| good	0.161 \| good
2025-09-13T19:00:00.000Z	54 \| moderate	10.992 \| good	48.864 \| good	37.437 \| good	0.709 \| good	3.06 \| good	0.164 \| good
2025-09-13T20:00:00.000Z	60 \| moderate	14.242 \| fine	63.879 \| fine	35.395 \| good	0.7 \| good	3.361 \| good	0.166 \| good
2025-09-13T21:00:00.000Z	58 \| moderate	12.732 \| fine	56.984 \| fine	35.519 \| good	0.692 \| good	3.662 \| good	0.169 \| good
2025-09-13T22:00:00.000Z	52 \| moderate	10.344 \| good	46.098 \| good	34.985 \| good	0.769 \| good	6.252 \| good	0.191 \| good
2025-09-13T23:00:00.000Z	44 \| good	8.472 \| good	37.573 \| good	37.175 \| good	0.846 \| good	8.841 \| good	0.213 \| good

Live 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)

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

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