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

Currently, Sudbury, Massachusetts has a sulfur dioxide (SO2) concentration of 0.37 ppb.

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

The current ozone (O3) level in Sudbury, Massachusetts at the moment is 47.378 ppm.

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

Nitrogen dioxide (NO2) level in Sudbury, Massachusetts at the moment is 7.978 ppb.

Live air quality index in Sudbury, Massachusetts today

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

Stay updated with real-time air quality in Sudbury, 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

Sudbury, Massachusetts

Last updated: ... (Local time)

Major air pollutants in Sudbury, Massachusetts

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

14.50 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

75.14 μg/m³

155

255

425

605+

Ozone (O₃)

30.46 ppb

201

201+

Sulfur Dioxide (SO₂)

0.26 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

7.47 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.34 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Sudbury, Massachusetts

Get Live Pollen Counts

Sudbury, Massachusetts

Scroll To Air Quality Map

Track live Sudbury, Massachusetts air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-07-29T16:00:00.000Z	62 \| moderate	14.954 \| fine	33.187 \| good	35.611 \| good	0.241 \| good	8.061 \| good	0.275 \| good
2025-07-29T17:00:00.000Z	60 \| moderate	13.695 \| fine	51.655 \| good	38.159 \| good	0.334 \| good	6.193 \| good	0.275 \| good
2025-07-29T18:00:00.000Z	58 \| moderate	12.998 \| fine	35.874 \| good	45.188 \| good	0.382 \| good	5.45 \| good	0.253 \| good
2025-07-29T19:00:00.000Z	58 \| moderate	12.902 \| fine	54.671 \| good	46.688 \| good	0.445 \| good	6.055 \| good	0.274 \| good
2025-07-29T20:00:00.000Z	58 \| moderate	12.7 \| fine	56.001 \| fine	50.903 \| good	0.991 \| good	5.321 \| good	0.314 \| good
2025-07-29T21:00:00.000Z	56 \| moderate	12.228 \| fine	41.678 \| good	49.362 \| good	0.779 \| good	4.215 \| good	0.29 \| good
2025-07-29T22:00:00.000Z	60 \| moderate	13.561 \| fine	58.036 \| fine	47.153 \| good	1.367 \| good	2.851 \| good	0.245 \| good
2025-07-29T23:00:00.000Z	54 \| moderate	10.761 \| good	49.208 \| good	41.922 \| good	0.806 \| good	2.2 \| good	0.245 \| good
2025-07-30T00:00:00.000Z	49 \| good	9.493 \| good	38.414 \| good	39.164 \| good	0.775 \| good	2.867 \| good	0.223 \| good
2025-07-30T01:00:00.000Z	49 \| good	9.214 \| good	42.569 \| good	41.414 \| good	0.485 \| good	3.326 \| good	0.2 \| good
2025-07-30T02:00:00.000Z	49 \| good	9.172 \| good	26.067 \| good	42.745 \| good	0.273 \| good	4.615 \| good	0.215 \| good
2025-07-30T03:00:00.000Z	66 \| moderate	17.477 \| fine	77.914 \| fine	21.713 \| good	0.721 \| good	10.456 \| good	0.261 \| good
2025-07-30T04:00:00.000Z	52 \| moderate	10.411 \| good	35.517 \| good	32.071 \| good	0.347 \| good	8.737 \| good	0.331 \| good
2025-07-30T05:00:00.000Z	52 \| moderate	10.038 \| good	39.434 \| good	30.204 \| good	0.362 \| good	18.894 \| good	0.335 \| good
2025-07-30T06:00:00.000Z	49 \| good	9.017 \| good	46.427 \| good	19.057 \| good	0.281 \| good	14.437 \| good	0.28 \| good
2025-07-30T07:00:00.000Z	44 \| good	8.458 \| good	31.464 \| good	21.795 \| good	0.454 \| good	14.462 \| good	0.327 \| good
2025-07-30T08:00:00.000Z	52 \| moderate	10.124 \| good	42.488 \| good	27.611 \| good	0.467 \| good	15.122 \| good	0.309 \| good
2025-07-30T09:00:00.000Z	57 \| moderate	8.852 \| good	67.502 \| fine	20.19 \| good	0.486 \| good	8.248 \| good	0.234 \| good
2025-07-30T10:00:00.000Z	49 \| good	9.461 \| good	34.712 \| good	16.34 \| good	0.357 \| good	9.884 \| good	0.234 \| good
2025-07-30T11:00:00.000Z	49 \| good	9.003 \| good	42.205 \| good	13.422 \| good	0.373 \| good	15.485 \| good	0.27 \| good
2025-07-30T12:00:00.000Z	52 \| moderate	10.381 \| good	35.501 \| good	21.954 \| good	0.449 \| good	13.692 \| good	0.357 \| good
2025-07-30T13:00:00.000Z	49 \| good	9.18 \| good	34.462 \| good	20.78 \| good	0.361 \| good	8.858 \| good	0.323 \| good
2025-07-30T14:00:00.000Z	49 \| good	8.631 \| good	38.268 \| good	30.227 \| good	0.387 \| good	6.248 \| good	0.278 \| good
2025-07-30T15:00:00.000Z	52 \| moderate	9.526 \| good	47.977 \| good	35.209 \| good	0.345 \| good	5.817 \| good	0.276 \| good
2025-07-30T16:00:00.000Z	49 \| good	9.472 \| good	42.095 \| good	33.658 \| good	0.36 \| good	6.257 \| good	0.255 \| good
2025-07-30T17:00:00.000Z	52 \| moderate	9.688 \| good	41.057 \| good	43.145 \| good	0.498 \| good	7.029 \| good	0.278 \| good
2025-07-30T18:00:00.000Z	49 \| good	9.103 \| good	34.806 \| good	44.791 \| good	0.548 \| good	4.866 \| good	0.247 \| good
2025-07-30T19:00:00.000Z	49 \| good	9.045 \| good	36.511 \| good	45.659 \| good	0.493 \| good	5.27 \| good	0.257 \| good
2025-07-30T20:00:00.000Z	49 \| good	8.953 \| good	35.848 \| good	47.033 \| good	0.394 \| good	6.695 \| good	0.257 \| good
2025-07-30T21:00:00.000Z	52 \| moderate	9.708 \| good	38.144 \| good	44.373 \| good	0.411 \| good	6.986 \| good	0.264 \| good
2025-07-30T22:00:00.000Z	52 \| moderate	9.718 \| good	40.602 \| good	44.403 \| good	0.373 \| good	5.465 \| good	0.293 \| good
2025-07-30T23:00:00.000Z	52 \| moderate	9.73 \| good	35.895 \| good	37.361 \| good	0.534 \| good	9.541 \| good	0.24 \| good
2025-07-31T00:00:00.000Z	49 \| good	9.407 \| good	36.672 \| good	46.725 \| good	0.328 \| good	7.049 \| good	0.24 \| good
2025-07-31T01:00:00.000Z	51 \| moderate	9.146 \| good	37.507 \| good	54.865 \| good	0.355 \| good	10.792 \| good	0.287 \| good
2025-07-31T02:00:00.000Z	52 \| moderate	9.953 \| good	44.019 \| good	47.378 \| good	0.37 \| good	7.978 \| good	0.264 \| good
2025-07-31T03:00:00.000Z	52 \| moderate	9.719 \| good	44.723 \| good	30.807 \| good	0.356 \| good	5.353 \| good	0.24 \| good
2025-07-31T04:00:00.000Z	52 \| moderate	10.199 \| good	45.386 \| good	33.813 \| good	0.337 \| good	6.307 \| good	0.289 \| good
2025-07-31T05:00:00.000Z	52 \| moderate	9.606 \| good	43.509 \| good	38.199 \| good	0.43 \| good	10.669 \| good	0.295 \| good
2025-07-31T06:00:00.000Z	54 \| moderate	10.571 \| good	61.304 \| fine	36.818 \| good	0.905 \| good	9.458 \| good	0.317 \| good
2025-07-31T07:00:00.000Z	54 \| moderate	11.173 \| good	38.241 \| good	18.556 \| good	0.314 \| good	11.691 \| good	0.233 \| good
2025-07-31T08:00:00.000Z	49 \| good	8.595 \| good	42.81 \| good	18.843 \| good	0.438 \| good	11.987 \| good	0.233 \| good
2025-07-31T09:00:00.000Z	49 \| good	8.799 \| good	31.289 \| good	18.894 \| good	0.58 \| good	10.3 \| good	0.194 \| good
2025-07-31T10:00:00.000Z	54 \| moderate	10.742 \| good	34.761 \| good	22.435 \| good	0.668 \| good	7.12 \| good	0.193 \| good
2025-07-31T11:00:00.000Z	52 \| moderate	10.155 \| good	40.628 \| good	22.505 \| good	0.566 \| good	8.206 \| good	0.277 \| good
2025-07-31T12:00:00.000Z	54 \| moderate	11.196 \| good	36.822 \| good	18.809 \| good	0.804 \| good	7.361 \| good	0.294 \| good
2025-07-31T13:00:00.000Z	58 \| moderate	13.098 \| fine	40.058 \| good	23.674 \| good	0.619 \| good	7.136 \| good	0.317 \| good
2025-07-31T14:00:00.000Z	61 \| moderate	14.499 \| fine	75.139 \| fine	30.456 \| good	0.264 \| good	7.472 \| good	0.338 \| good
2025-07-31T15:00:00.000Z	61 \| moderate	14.499 \| fine	75.139 \| fine	30.456 \| good	0.264 \| good	7.472 \| good	0.338 \| good
2025-07-31T03:00:00.000Z	62 \| moderate	14.632 \| fine	65.197 \| fine	32.541 \| good	0.772 \| good	6.13 \| good	0.236 \| good
2025-07-31T04:00:00.000Z	62 \| moderate	14.722 \| fine	65.36 \| fine	29.565 \| good	0.681 \| good	5.119 \| good	0.232 \| good
2025-07-31T05:00:00.000Z	66 \| moderate	17.489 \| fine	77.346 \| fine	26.337 \| good	0.59 \| good	4.108 \| good	0.227 \| good
2025-07-31T06:00:00.000Z	71 \| moderate	19.743 \| fine	87.168 \| fine	22.438 \| good	0.499 \| good	3.097 \| good	0.222 \| good
2025-07-31T07:00:00.000Z	75 \| moderate	21.726 \| fine	95.12 \| fine	18.556 \| good	0.548 \| good	2.928 \| good	0.232 \| good
2025-07-31T08:00:00.000Z	75 \| moderate	21.723 \| fine	95.135 \| fine	15.608 \| good	0.598 \| good	2.758 \| good	0.241 \| good
2025-07-31T09:00:00.000Z	84 \| moderate	27.168 \| fine	118.792 \| fine	14.859 \| good	0.647 \| good	2.589 \| good	0.25 \| good
2025-07-31T10:00:00.000Z	90 \| moderate	29.881 \| fine	129.092 \| fine	15.43 \| good	0.705 \| good	2.954 \| good	0.258 \| good
2025-07-31T11:00:00.000Z	94 \| moderate	32.119 \| fine	139.122 \| fine	20.778 \| good	0.763 \| good	3.319 \| good	0.265 \| good
2025-07-31T12:00:00.000Z	86 \| moderate	27.98 \| fine	121.223 \| fine	28.208 \| good	0.821 \| good	3.685 \| good	0.272 \| good
2025-07-31T13:00:00.000Z	84 \| moderate	26.605 \| fine	115.285 \| fine	31.061 \| good	0.801 \| good	3.248 \| good	0.269 \| good
2025-07-31T14:00:00.000Z	82 \| moderate	25.858 \| fine	112.754 \| fine	32.002 \| good	0.781 \| good	2.811 \| good	0.265 \| good
2025-07-31T15:00:00.000Z	75 \| moderate	21.935 \| fine	96.772 \| fine	33.879 \| good	0.762 \| good	2.374 \| good	0.262 \| good
2025-07-31T16:00:00.000Z	69 \| moderate	19.442 \| fine	85.241 \| fine	35.011 \| good	0.712 \| good	2.117 \| good	0.257 \| good
2025-07-31T17:00:00.000Z	67 \| moderate	17.682 \| fine	78.927 \| fine	31.312 \| good	0.662 \| good	1.86 \| good	0.252 \| good
2025-07-31T18:00:00.000Z	67 \| moderate	17.564 \| fine	77.257 \| fine	29.199 \| good	0.612 \| good	1.603 \| good	0.248 \| good
2025-07-31T19:00:00.000Z	69 \| moderate	18.507 \| fine	81.218 \| fine	27.453 \| good	0.63 \| good	1.917 \| good	0.248 \| good
2025-07-31T20:00:00.000Z	71 \| moderate	19.685 \| fine	86.928 \| fine	25.817 \| good	0.649 \| good	2.232 \| good	0.249 \| good
2025-07-31T21:00:00.000Z	67 \| moderate	18.205 \| fine	80.971 \| fine	22.818 \| good	0.667 \| good	2.546 \| good	0.249 \| good
2025-07-31T22:00:00.000Z	64 \| moderate	16.19 \| fine	71.337 \| fine	20.749 \| good	0.727 \| good	4.306 \| good	0.26 \| good
2025-07-31T23:00:00.000Z	58 \| moderate	13.118 \| fine	58.975 \| fine	21.135 \| good	0.787 \| good	6.066 \| good	0.271 \| good
2025-08-01T00:00:00.000Z	58 \| moderate	12.857 \| fine	57.157 \| fine	21.57 \| good	0.847 \| good	7.825 \| good	0.283 \| good
2025-08-01T01:00:00.000Z	56 \| moderate	12.491 \| fine	56.969 \| fine	22.263 \| good	0.919 \| good	8.326 \| good	0.286 \| good
2025-08-01T02:00:00.000Z	58 \| moderate	12.615 \| fine	57 \| fine	23.526 \| good	0.99 \| good	8.827 \| good	0.29 \| good
2025-08-01T03:00:00.000Z	58 \| moderate	13.243 \| fine	59.194 \| fine	21.825 \| good	1.062 \| good	9.329 \| good	0.293 \| good
2025-08-01T04:00:00.000Z	58 \| moderate	13.208 \| fine	59.03 \| fine	20.992 \| good	1.164 \| good	8.961 \| good	0.291 \| good
2025-08-01T05:00:00.000Z	56 \| moderate	12.418 \| fine	56.81 \| fine	20.44 \| good	1.266 \| good	8.593 \| good	0.289 \| good
2025-08-01T06:00:00.000Z	54 \| moderate	10.956 \| good	48.052 \| good	20.387 \| good	1.367 \| good	8.225 \| good	0.286 \| good
2025-08-01T07:00:00.000Z	49 \| good	9.054 \| good	40.827 \| good	21.192 \| good	1.306 \| good	6.992 \| good	0.272 \| good
2025-08-01T08:00:00.000Z	44 \| good	8.467 \| good	37.015 \| good	21.558 \| good	1.244 \| good	5.759 \| good	0.259 \| good
2025-08-01T09:00:00.000Z	44 \| good	7.742 \| good	33.997 \| good	20.483 \| good	1.182 \| good	4.526 \| good	0.245 \| good
2025-08-01T10:00:00.000Z	38 \| good	7.493 \| good	33.015 \| good	19.913 \| good	1.041 \| good	4.442 \| good	0.236 \| good
2025-08-01T11:00:00.000Z	44 \| good	8.193 \| good	36.038 \| good	18.811 \| good	0.899 \| good	4.359 \| good	0.227 \| good
2025-08-01T12:00:00.000Z	49 \| good	8.674 \| good	38.053 \| good	18.683 \| good	0.758 \| good	4.275 \| good	0.218 \| good
2025-08-01T13:00:00.000Z	44 \| good	7.666 \| good	33.956 \| good	20.714 \| good	0.738 \| good	4.568 \| good	0.216 \| good
2025-08-01T14:00:00.000Z	33 \| good	6.475 \| good	29.008 \| good	21.449 \| good	0.718 \| good	4.861 \| good	0.213 \| good
2025-08-01T15:00:00.000Z	33 \| good	6.13 \| good	27.018 \| good	23.816 \| good	0.697 \| good	5.154 \| good	0.211 \| good
2025-08-01T16:00:00.000Z	33 \| good	6.074 \| good	26.944 \| good	22.641 \| good	0.695 \| good	4.609 \| good	0.206 \| good
2025-08-01T17:00:00.000Z	38 \| good	6.676 \| good	29.921 \| good	22.397 \| good	0.692 \| good	4.064 \| good	0.2 \| good
2025-08-01T18:00:00.000Z	33 \| good	6.495 \| good	28.971 \| good	24.038 \| good	0.69 \| good	3.519 \| good	0.195 \| good
2025-08-01T19:00:00.000Z	27 \| good	5.339 \| good	23.007 \| good	25.298 \| good	0.667 \| good	3.462 \| good	0.194 \| good
2025-08-01T20:00:00.000Z	33 \| good	5.694 \| good	24.888 \| good	26.02 \| good	0.644 \| good	3.405 \| good	0.194 \| good
2025-08-01T21:00:00.000Z	27 \| good	5.295 \| good	22.99 \| good	24.958 \| good	0.621 \| good	3.348 \| good	0.194 \| good
2025-08-01T22:00:00.000Z	27 \| good	5.384 \| good	23.098 \| good	22.94 \| good	0.651 \| good	4.151 \| good	0.2 \| good
2025-08-01T23:00:00.000Z	33 \| good	6.428 \| good	28.89 \| good	19.065 \| good	0.68 \| good	4.954 \| good	0.207 \| good
2025-08-02T00:00:00.000Z	66 \| moderate	16.619 \| fine	17.602 \| good	37.786 \| good	0.708 \| good	5.724 \| good	0.213 \| good
2025-08-02T01:00:00.000Z	54 \| moderate	10.951 \| good	48.023 \| good	12.733 \| good	0.775 \| good	6.599 \| good	0.22 \| good
2025-08-02T02:00:00.000Z	54 \| moderate	11.229 \| good	49.812 \| good	14.172 \| good	0.839 \| good	7.441 \| good	0.227 \| good

Sudbury

Get reliable air quality data to drive your business

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

0.33ppm

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 Sudbury, Massachusetts?

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

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

In the past 24 hours, the air quality in Sudbury, Massachusetts was at its worst at 03:00:00 on 2025-07-30.

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

In the last 24 hours, the best air quality in Sudbury, Massachusetts was observed at 01:00:00 on 2025-07-31.

What is the AQI in Sudbury, Massachusetts right now?

As of now, the AQI in Sudbury, Massachusetts is 52, indicating Moderate conditions.

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

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

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

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

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

PM_2.5 levels in Sudbury, Massachusetts are currently 9.953 μg/m³.

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

The PM₁₀ concentration in Sudbury, Massachusetts is 44.019 μg/m³ at the moment.

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

The current carbon monoxide (CO) concentration in Sudbury, Massachusetts is 0.264 ppm.

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

Currently, Sudbury, Massachusetts has a sulfur dioxide (SO₂) concentration of 0.37 ppb.

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

The current ozone (O₃) level in Sudbury, Massachusetts at the moment is 47.378 ppm.

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

Nitrogen dioxide (NO₂) level in Sudbury, Massachusetts at the moment is 7.978 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-07-29T16:00:00.000Z	62 \| moderate	14.954 \| fine	33.187 \| good	35.611 \| good	0.241 \| good	8.061 \| good	0.275 \| good
2025-07-29T17:00:00.000Z	60 \| moderate	13.695 \| fine	51.655 \| good	38.159 \| good	0.334 \| good	6.193 \| good	0.275 \| good
2025-07-29T18:00:00.000Z	58 \| moderate	12.998 \| fine	35.874 \| good	45.188 \| good	0.382 \| good	5.45 \| good	0.253 \| good
2025-07-29T19:00:00.000Z	58 \| moderate	12.902 \| fine	54.671 \| good	46.688 \| good	0.445 \| good	6.055 \| good	0.274 \| good
2025-07-29T20:00:00.000Z	58 \| moderate	12.7 \| fine	56.001 \| fine	50.903 \| good	0.991 \| good	5.321 \| good	0.314 \| good
2025-07-29T21:00:00.000Z	56 \| moderate	12.228 \| fine	41.678 \| good	49.362 \| good	0.779 \| good	4.215 \| good	0.29 \| good
2025-07-29T22:00:00.000Z	60 \| moderate	13.561 \| fine	58.036 \| fine	47.153 \| good	1.367 \| good	2.851 \| good	0.245 \| good
2025-07-29T23:00:00.000Z	54 \| moderate	10.761 \| good	49.208 \| good	41.922 \| good	0.806 \| good	2.2 \| good	0.245 \| good
2025-07-30T00:00:00.000Z	49 \| good	9.493 \| good	38.414 \| good	39.164 \| good	0.775 \| good	2.867 \| good	0.223 \| good
2025-07-30T01:00:00.000Z	49 \| good	9.214 \| good	42.569 \| good	41.414 \| good	0.485 \| good	3.326 \| good	0.2 \| good
2025-07-30T02:00:00.000Z	49 \| good	9.172 \| good	26.067 \| good	42.745 \| good	0.273 \| good	4.615 \| good	0.215 \| good
2025-07-30T03:00:00.000Z	66 \| moderate	17.477 \| fine	77.914 \| fine	21.713 \| good	0.721 \| good	10.456 \| good	0.261 \| good
2025-07-30T04:00:00.000Z	52 \| moderate	10.411 \| good	35.517 \| good	32.071 \| good	0.347 \| good	8.737 \| good	0.331 \| good
2025-07-30T05:00:00.000Z	52 \| moderate	10.038 \| good	39.434 \| good	30.204 \| good	0.362 \| good	18.894 \| good	0.335 \| good
2025-07-30T06:00:00.000Z	49 \| good	9.017 \| good	46.427 \| good	19.057 \| good	0.281 \| good	14.437 \| good	0.28 \| good
2025-07-30T07:00:00.000Z	44 \| good	8.458 \| good	31.464 \| good	21.795 \| good	0.454 \| good	14.462 \| good	0.327 \| good
2025-07-30T08:00:00.000Z	52 \| moderate	10.124 \| good	42.488 \| good	27.611 \| good	0.467 \| good	15.122 \| good	0.309 \| good
2025-07-30T09:00:00.000Z	57 \| moderate	8.852 \| good	67.502 \| fine	20.19 \| good	0.486 \| good	8.248 \| good	0.234 \| good
2025-07-30T10:00:00.000Z	49 \| good	9.461 \| good	34.712 \| good	16.34 \| good	0.357 \| good	9.884 \| good	0.234 \| good
2025-07-30T11:00:00.000Z	49 \| good	9.003 \| good	42.205 \| good	13.422 \| good	0.373 \| good	15.485 \| good	0.27 \| good
2025-07-30T12:00:00.000Z	52 \| moderate	10.381 \| good	35.501 \| good	21.954 \| good	0.449 \| good	13.692 \| good	0.357 \| good
2025-07-30T13:00:00.000Z	49 \| good	9.18 \| good	34.462 \| good	20.78 \| good	0.361 \| good	8.858 \| good	0.323 \| good
2025-07-30T14:00:00.000Z	49 \| good	8.631 \| good	38.268 \| good	30.227 \| good	0.387 \| good	6.248 \| good	0.278 \| good
2025-07-30T15:00:00.000Z	52 \| moderate	9.526 \| good	47.977 \| good	35.209 \| good	0.345 \| good	5.817 \| good	0.276 \| good
2025-07-30T16:00:00.000Z	49 \| good	9.472 \| good	42.095 \| good	33.658 \| good	0.36 \| good	6.257 \| good	0.255 \| good
2025-07-30T17:00:00.000Z	52 \| moderate	9.688 \| good	41.057 \| good	43.145 \| good	0.498 \| good	7.029 \| good	0.278 \| good
2025-07-30T18:00:00.000Z	49 \| good	9.103 \| good	34.806 \| good	44.791 \| good	0.548 \| good	4.866 \| good	0.247 \| good
2025-07-30T19:00:00.000Z	49 \| good	9.045 \| good	36.511 \| good	45.659 \| good	0.493 \| good	5.27 \| good	0.257 \| good
2025-07-30T20:00:00.000Z	49 \| good	8.953 \| good	35.848 \| good	47.033 \| good	0.394 \| good	6.695 \| good	0.257 \| good
2025-07-30T21:00:00.000Z	52 \| moderate	9.708 \| good	38.144 \| good	44.373 \| good	0.411 \| good	6.986 \| good	0.264 \| good
2025-07-30T22:00:00.000Z	52 \| moderate	9.718 \| good	40.602 \| good	44.403 \| good	0.373 \| good	5.465 \| good	0.293 \| good
2025-07-30T23:00:00.000Z	52 \| moderate	9.73 \| good	35.895 \| good	37.361 \| good	0.534 \| good	9.541 \| good	0.24 \| good
2025-07-31T00:00:00.000Z	49 \| good	9.407 \| good	36.672 \| good	46.725 \| good	0.328 \| good	7.049 \| good	0.24 \| good
2025-07-31T01:00:00.000Z	51 \| moderate	9.146 \| good	37.507 \| good	54.865 \| good	0.355 \| good	10.792 \| good	0.287 \| good
2025-07-31T02:00:00.000Z	52 \| moderate	9.953 \| good	44.019 \| good	47.378 \| good	0.37 \| good	7.978 \| good	0.264 \| good
2025-07-31T03:00:00.000Z	52 \| moderate	9.719 \| good	44.723 \| good	30.807 \| good	0.356 \| good	5.353 \| good	0.24 \| good
2025-07-31T04:00:00.000Z	52 \| moderate	10.199 \| good	45.386 \| good	33.813 \| good	0.337 \| good	6.307 \| good	0.289 \| good
2025-07-31T05:00:00.000Z	52 \| moderate	9.606 \| good	43.509 \| good	38.199 \| good	0.43 \| good	10.669 \| good	0.295 \| good
2025-07-31T06:00:00.000Z	54 \| moderate	10.571 \| good	61.304 \| fine	36.818 \| good	0.905 \| good	9.458 \| good	0.317 \| good
2025-07-31T07:00:00.000Z	54 \| moderate	11.173 \| good	38.241 \| good	18.556 \| good	0.314 \| good	11.691 \| good	0.233 \| good
2025-07-31T08:00:00.000Z	49 \| good	8.595 \| good	42.81 \| good	18.843 \| good	0.438 \| good	11.987 \| good	0.233 \| good
2025-07-31T09:00:00.000Z	49 \| good	8.799 \| good	31.289 \| good	18.894 \| good	0.58 \| good	10.3 \| good	0.194 \| good
2025-07-31T10:00:00.000Z	54 \| moderate	10.742 \| good	34.761 \| good	22.435 \| good	0.668 \| good	7.12 \| good	0.193 \| good
2025-07-31T11:00:00.000Z	52 \| moderate	10.155 \| good	40.628 \| good	22.505 \| good	0.566 \| good	8.206 \| good	0.277 \| good
2025-07-31T12:00:00.000Z	54 \| moderate	11.196 \| good	36.822 \| good	18.809 \| good	0.804 \| good	7.361 \| good	0.294 \| good
2025-07-31T13:00:00.000Z	58 \| moderate	13.098 \| fine	40.058 \| good	23.674 \| good	0.619 \| good	7.136 \| good	0.317 \| good
2025-07-31T14:00:00.000Z	61 \| moderate	14.499 \| fine	75.139 \| fine	30.456 \| good	0.264 \| good	7.472 \| good	0.338 \| good
2025-07-31T15:00:00.000Z	61 \| moderate	14.499 \| fine	75.139 \| fine	30.456 \| good	0.264 \| good	7.472 \| good	0.338 \| good
2025-07-31T03:00:00.000Z	62 \| moderate	14.632 \| fine	65.197 \| fine	32.541 \| good	0.772 \| good	6.13 \| good	0.236 \| good
2025-07-31T04:00:00.000Z	62 \| moderate	14.722 \| fine	65.36 \| fine	29.565 \| good	0.681 \| good	5.119 \| good	0.232 \| good
2025-07-31T05:00:00.000Z	66 \| moderate	17.489 \| fine	77.346 \| fine	26.337 \| good	0.59 \| good	4.108 \| good	0.227 \| good
2025-07-31T06:00:00.000Z	71 \| moderate	19.743 \| fine	87.168 \| fine	22.438 \| good	0.499 \| good	3.097 \| good	0.222 \| good
2025-07-31T07:00:00.000Z	75 \| moderate	21.726 \| fine	95.12 \| fine	18.556 \| good	0.548 \| good	2.928 \| good	0.232 \| good
2025-07-31T08:00:00.000Z	75 \| moderate	21.723 \| fine	95.135 \| fine	15.608 \| good	0.598 \| good	2.758 \| good	0.241 \| good
2025-07-31T09:00:00.000Z	84 \| moderate	27.168 \| fine	118.792 \| fine	14.859 \| good	0.647 \| good	2.589 \| good	0.25 \| good
2025-07-31T10:00:00.000Z	90 \| moderate	29.881 \| fine	129.092 \| fine	15.43 \| good	0.705 \| good	2.954 \| good	0.258 \| good
2025-07-31T11:00:00.000Z	94 \| moderate	32.119 \| fine	139.122 \| fine	20.778 \| good	0.763 \| good	3.319 \| good	0.265 \| good
2025-07-31T12:00:00.000Z	86 \| moderate	27.98 \| fine	121.223 \| fine	28.208 \| good	0.821 \| good	3.685 \| good	0.272 \| good
2025-07-31T13:00:00.000Z	84 \| moderate	26.605 \| fine	115.285 \| fine	31.061 \| good	0.801 \| good	3.248 \| good	0.269 \| good
2025-07-31T14:00:00.000Z	82 \| moderate	25.858 \| fine	112.754 \| fine	32.002 \| good	0.781 \| good	2.811 \| good	0.265 \| good
2025-07-31T15:00:00.000Z	75 \| moderate	21.935 \| fine	96.772 \| fine	33.879 \| good	0.762 \| good	2.374 \| good	0.262 \| good
2025-07-31T16:00:00.000Z	69 \| moderate	19.442 \| fine	85.241 \| fine	35.011 \| good	0.712 \| good	2.117 \| good	0.257 \| good
2025-07-31T17:00:00.000Z	67 \| moderate	17.682 \| fine	78.927 \| fine	31.312 \| good	0.662 \| good	1.86 \| good	0.252 \| good
2025-07-31T18:00:00.000Z	67 \| moderate	17.564 \| fine	77.257 \| fine	29.199 \| good	0.612 \| good	1.603 \| good	0.248 \| good
2025-07-31T19:00:00.000Z	69 \| moderate	18.507 \| fine	81.218 \| fine	27.453 \| good	0.63 \| good	1.917 \| good	0.248 \| good
2025-07-31T20:00:00.000Z	71 \| moderate	19.685 \| fine	86.928 \| fine	25.817 \| good	0.649 \| good	2.232 \| good	0.249 \| good
2025-07-31T21:00:00.000Z	67 \| moderate	18.205 \| fine	80.971 \| fine	22.818 \| good	0.667 \| good	2.546 \| good	0.249 \| good
2025-07-31T22:00:00.000Z	64 \| moderate	16.19 \| fine	71.337 \| fine	20.749 \| good	0.727 \| good	4.306 \| good	0.26 \| good
2025-07-31T23:00:00.000Z	58 \| moderate	13.118 \| fine	58.975 \| fine	21.135 \| good	0.787 \| good	6.066 \| good	0.271 \| good
2025-08-01T00:00:00.000Z	58 \| moderate	12.857 \| fine	57.157 \| fine	21.57 \| good	0.847 \| good	7.825 \| good	0.283 \| good
2025-08-01T01:00:00.000Z	56 \| moderate	12.491 \| fine	56.969 \| fine	22.263 \| good	0.919 \| good	8.326 \| good	0.286 \| good
2025-08-01T02:00:00.000Z	58 \| moderate	12.615 \| fine	57 \| fine	23.526 \| good	0.99 \| good	8.827 \| good	0.29 \| good
2025-08-01T03:00:00.000Z	58 \| moderate	13.243 \| fine	59.194 \| fine	21.825 \| good	1.062 \| good	9.329 \| good	0.293 \| good
2025-08-01T04:00:00.000Z	58 \| moderate	13.208 \| fine	59.03 \| fine	20.992 \| good	1.164 \| good	8.961 \| good	0.291 \| good
2025-08-01T05:00:00.000Z	56 \| moderate	12.418 \| fine	56.81 \| fine	20.44 \| good	1.266 \| good	8.593 \| good	0.289 \| good
2025-08-01T06:00:00.000Z	54 \| moderate	10.956 \| good	48.052 \| good	20.387 \| good	1.367 \| good	8.225 \| good	0.286 \| good
2025-08-01T07:00:00.000Z	49 \| good	9.054 \| good	40.827 \| good	21.192 \| good	1.306 \| good	6.992 \| good	0.272 \| good
2025-08-01T08:00:00.000Z	44 \| good	8.467 \| good	37.015 \| good	21.558 \| good	1.244 \| good	5.759 \| good	0.259 \| good
2025-08-01T09:00:00.000Z	44 \| good	7.742 \| good	33.997 \| good	20.483 \| good	1.182 \| good	4.526 \| good	0.245 \| good
2025-08-01T10:00:00.000Z	38 \| good	7.493 \| good	33.015 \| good	19.913 \| good	1.041 \| good	4.442 \| good	0.236 \| good
2025-08-01T11:00:00.000Z	44 \| good	8.193 \| good	36.038 \| good	18.811 \| good	0.899 \| good	4.359 \| good	0.227 \| good
2025-08-01T12:00:00.000Z	49 \| good	8.674 \| good	38.053 \| good	18.683 \| good	0.758 \| good	4.275 \| good	0.218 \| good
2025-08-01T13:00:00.000Z	44 \| good	7.666 \| good	33.956 \| good	20.714 \| good	0.738 \| good	4.568 \| good	0.216 \| good
2025-08-01T14:00:00.000Z	33 \| good	6.475 \| good	29.008 \| good	21.449 \| good	0.718 \| good	4.861 \| good	0.213 \| good
2025-08-01T15:00:00.000Z	33 \| good	6.13 \| good	27.018 \| good	23.816 \| good	0.697 \| good	5.154 \| good	0.211 \| good
2025-08-01T16:00:00.000Z	33 \| good	6.074 \| good	26.944 \| good	22.641 \| good	0.695 \| good	4.609 \| good	0.206 \| good
2025-08-01T17:00:00.000Z	38 \| good	6.676 \| good	29.921 \| good	22.397 \| good	0.692 \| good	4.064 \| good	0.2 \| good
2025-08-01T18:00:00.000Z	33 \| good	6.495 \| good	28.971 \| good	24.038 \| good	0.69 \| good	3.519 \| good	0.195 \| good
2025-08-01T19:00:00.000Z	27 \| good	5.339 \| good	23.007 \| good	25.298 \| good	0.667 \| good	3.462 \| good	0.194 \| good
2025-08-01T20:00:00.000Z	33 \| good	5.694 \| good	24.888 \| good	26.02 \| good	0.644 \| good	3.405 \| good	0.194 \| good
2025-08-01T21:00:00.000Z	27 \| good	5.295 \| good	22.99 \| good	24.958 \| good	0.621 \| good	3.348 \| good	0.194 \| good
2025-08-01T22:00:00.000Z	27 \| good	5.384 \| good	23.098 \| good	22.94 \| good	0.651 \| good	4.151 \| good	0.2 \| good
2025-08-01T23:00:00.000Z	33 \| good	6.428 \| good	28.89 \| good	19.065 \| good	0.68 \| good	4.954 \| good	0.207 \| good
2025-08-02T00:00:00.000Z	66 \| moderate	16.619 \| fine	17.602 \| good	37.786 \| good	0.708 \| good	5.724 \| good	0.213 \| good
2025-08-02T01:00:00.000Z	54 \| moderate	10.951 \| good	48.023 \| good	12.733 \| good	0.775 \| good	6.599 \| good	0.22 \| good
2025-08-02T02:00:00.000Z	54 \| moderate	11.229 \| good	49.812 \| good	14.172 \| good	0.839 \| good	7.441 \| good	0.227 \| good

Live air quality index in Sudbury, Massachusetts today

Major air pollutants in Sudbury, 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)

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