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

Currently, Grafton, Massachusetts has a sulfur dioxide (SO2) concentration of 0.373 ppb.

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

The current ozone (O3) level in Grafton, Massachusetts at the moment is 40.331 ppm.

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

Nitrogen dioxide (NO2) level in Grafton, Massachusetts at the moment is 12.363 ppb.

Live air quality index in Grafton, Massachusetts today

Q: What is the PM2.5 level in Grafton, Massachusetts at the moment?

PM2.5 levels in Grafton, Massachusetts are currently 3.785 μg/m3.

Q: What is the PM10 level in Grafton, Massachusetts at the moment?

The PM10 concentration in Grafton, Massachusetts is 9.967 μg/m3 at the moment.

Stay updated with real-time air quality in Grafton, 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

Grafton, Massachusetts

Last updated: ... (Local time)

Major air pollutants in Grafton, Massachusetts

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

3.79 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

9.97 μg/m³

155

255

425

605+

Ozone (O₃)

40.33 ppb

201

201+

Sulfur Dioxide (SO₂)

0.37 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

12.36 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.18 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

Grafton, Massachusetts

Get Live Pollen Counts

Grafton, Massachusetts

Scroll To Air Quality Map

Track live Grafton, Massachusetts air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-05-12T16:00:00.000Z	26 \| good	1.603 \| good	5.335 \| good	27.96 \| good	0.282 \| good	3.03 \| good	0.188 \| good
2026-05-12T17:00:00.000Z	31 \| good	1.595 \| good	5.256 \| good	32.669 \| good	0.259 \| good	4.309 \| good	0.146 \| good
2026-05-12T18:00:00.000Z	33 \| good	1.277 \| good	4.562 \| good	35.996 \| good	0.257 \| good	3.259 \| good	0.188 \| good
2026-05-12T19:00:00.000Z	32 \| good	1.061 \| good	3.69 \| good	35.142 \| good	0.259 \| good	2.777 \| good	0.188 \| good
2026-05-12T20:00:00.000Z	36 \| good	0.938 \| good	4.387 \| good	38.668 \| good	0.26 \| good	2.904 \| good	0.171 \| good
2026-05-12T21:00:00.000Z	36 \| good	0.969 \| good	4.443 \| good	39.014 \| good	0.261 \| good	2.669 \| good	0.171 \| good
2026-05-12T22:00:00.000Z	36 \| good	0.852 \| good	3.45 \| good	39.015 \| good	0.259 \| good	2.475 \| good	0.153 \| good
2026-05-12T23:00:00.000Z	36 \| good	0.875 \| good	4.215 \| good	39.245 \| good	0.267 \| good	2.406 \| good	0.171 \| good
2026-05-13T00:00:00.000Z	36 \| good	0.868 \| good	3.3 \| good	39.031 \| good	0.233 \| good	3.571 \| good	0.182 \| good
2026-05-13T01:00:00.000Z	33 \| good	0.914 \| good	3.438 \| good	35.693 \| good	0.237 \| good	3.444 \| good	0.217 \| good
2026-05-13T02:00:00.000Z	29 \| good	1.105 \| good	3.79 \| good	30.551 \| good	0.24 \| good	10.56 \| good	0.216 \| good
2026-05-13T03:00:00.000Z	22 \| good	3.865 \| good	16.738 \| good	20.198 \| good	0.389 \| good	21.172 \| good	0.245 \| good
2026-05-13T04:00:00.000Z	23 \| good	2.491 \| good	4.73 \| good	24.702 \| good	0.278 \| good	11.466 \| good	0.253 \| good
2026-05-13T05:00:00.000Z	22 \| good	2.485 \| good	4.743 \| good	23.845 \| good	0.277 \| good	12.925 \| good	0.235 \| good
2026-05-13T06:00:00.000Z	21 \| good	2.496 \| good	4.851 \| good	22.998 \| good	0.269 \| good	11.866 \| good	0.218 \| good
2026-05-13T07:00:00.000Z	21 \| good	2.47 \| good	4.668 \| good	23.139 \| good	0.396 \| good	7.746 \| good	0.1 \| good
2026-05-13T08:00:00.000Z	22 \| good	3.81 \| good	7.479 \| good	18.701 \| good	0.248 \| good	10.12 \| good	0.153 \| good
2026-05-13T09:00:00.000Z	18 \| good	3.328 \| good	6.726 \| good	19.275 \| good	0.205 \| good	7.975 \| good	0.153 \| good
2026-05-13T10:00:00.000Z	21 \| good	2.971 \| good	6.742 \| good	23.433 \| good	0.275 \| good	7.498 \| good	0.182 \| good
2026-05-13T11:00:00.000Z	21 \| good	2.919 \| good	6.78 \| good	22.886 \| good	0.285 \| good	7.407 \| good	0.21 \| good
2026-05-13T12:00:00.000Z	19 \| good	3.153 \| good	8.119 \| good	20.735 \| good	0.317 \| good	11.246 \| good	0.211 \| good
2026-05-13T13:00:00.000Z	26 \| good	3.15 \| good	8.053 \| good	28.336 \| good	0.316 \| good	12.851 \| good	0.211 \| good
2026-05-13T14:00:00.000Z	30 \| good	3.753 \| good	9.877 \| good	32.163 \| good	0.331 \| good	11.952 \| good	0.212 \| good
2026-05-13T15:00:00.000Z	33 \| good	3.825 \| good	10.698 \| good	36.313 \| good	0.285 \| good	7.538 \| good	0.2 \| good
2026-05-13T16:00:00.000Z	37 \| good	5.647 \| good	24.295 \| good	40.174 \| good	0.27 \| good	1.685 \| good	0.141 \| good
2026-05-13T17:00:00.000Z	32 \| good	3.969 \| good	10.032 \| good	34.564 \| good	0.275 \| good	9.746 \| good	0.194 \| good
2026-05-13T18:00:00.000Z	32 \| good	4.039 \| good	11.68 \| good	35.402 \| good	0.317 \| good	8.605 \| good	0.223 \| good
2026-05-13T19:00:00.000Z	36 \| good	4.051 \| good	11.706 \| good	39.468 \| good	0.317 \| good	8.411 \| good	0.205 \| good
2026-05-13T20:00:00.000Z	44 \| good	4.499 \| good	16.351 \| good	47.126 \| good	0.386 \| good	5.187 \| good	0.2 \| good
2026-05-13T21:00:00.000Z	44 \| good	4.473 \| good	16.625 \| good	46.793 \| good	0.342 \| good	4.373 \| good	0.189 \| good
2026-05-13T22:00:00.000Z	44 \| good	4.482 \| good	15.912 \| good	47.419 \| good	0.341 \| good	3.988 \| good	0.171 \| good
2026-05-13T23:00:00.000Z	46 \| good	4.503 \| good	14.898 \| good	50.132 \| good	0.33 \| good	5.369 \| good	0.2 \| good
2026-05-14T00:00:00.000Z	47 \| good	4.47 \| good	14.9 \| good	51.002 \| good	0.312 \| good	4.282 \| good	0.183 \| good
2026-05-14T01:00:00.000Z	47 \| good	4.522 \| good	13.983 \| good	51.394 \| good	0.286 \| good	4.823 \| good	0.194 \| good
2026-05-14T02:00:00.000Z	48 \| good	4.571 \| good	13.117 \| good	51.634 \| good	0.243 \| good	3.103 \| good	0.194 \| good
2026-05-14T03:00:00.000Z	45 \| good	4.667 \| good	11.916 \| good	49.091 \| good	0.23 \| good	3.758 \| good	0.204 \| good
2026-05-14T04:00:00.000Z	45 \| good	4.643 \| good	11.895 \| good	48.851 \| good	0.23 \| good	3.612 \| good	0.187 \| good
2026-05-14T05:00:00.000Z	43 \| good	4.507 \| good	10.692 \| good	46.209 \| good	0.241 \| good	6.81 \| good	0.165 \| good
2026-05-14T06:00:00.000Z	41 \| good	4.523 \| good	9.902 \| good	44.166 \| good	0.274 \| good	9.139 \| good	0.165 \| good
2026-05-14T07:00:00.000Z	38 \| good	4.526 \| good	9.974 \| good	41.158 \| good	0.275 \| good	10.597 \| good	0.165 \| good
2026-05-14T08:00:00.000Z	38 \| good	4.07 \| good	9.132 \| good	40.661 \| good	0.276 \| good	7.727 \| good	0.173 \| good
2026-05-14T09:00:00.000Z	35 \| good	3.856 \| good	8.827 \| good	38.32 \| good	0.275 \| good	10.618 \| good	0.153 \| good
2026-05-14T10:00:00.000Z	34 \| good	3.833 \| good	8.999 \| good	37.103 \| good	0.373 \| good	13.998 \| good	0.199 \| good
2026-05-14T11:00:00.000Z	38 \| good	3.77 \| good	8.951 \| good	41.141 \| good	0.398 \| good	16.017 \| good	0.265 \| good
2026-05-14T12:00:00.000Z	38 \| good	3.789 \| good	8.96 \| good	41.315 \| good	0.341 \| good	13.329 \| good	0.276 \| good
2026-05-14T13:00:00.000Z	36 \| good	3.777 \| good	8.781 \| good	38.995 \| good	0.341 \| good	13.034 \| good	0.235 \| good
2026-05-14T14:00:00.000Z	37 \| good	3.94 \| good	9.739 \| good	39.504 \| good	0.352 \| good	8.151 \| good	0.171 \| good
2026-05-14T15:00:00.000Z	37 \| good	3.971 \| good	9.8 \| good	39.79 \| good	0.339 \| good	6.734 \| good	0.196 \| good
2026-05-14T15:00:00.000Z	37 \| good	3.785 \| good	9.967 \| good	40.331 \| good	0.373 \| good	12.363 \| good	0.177 \| good
2026-05-14T16:00:00.000Z	37 \| good	3.14 \| good	13.267 \| good	39.527 \| good	0.195 \| good	2.838 \| good	0.145 \| good
2026-05-14T17:00:00.000Z	35 \| good	2.742 \| good	11.511 \| good	37.937 \| good	0.204 \| good	2.542 \| good	0.142 \| good
2026-05-14T18:00:00.000Z	31 \| good	3.022 \| good	12.276 \| good	34.46 \| good	0.207 \| good	2.579 \| good	0.141 \| good
2026-05-14T19:00:00.000Z	29 \| good	3.166 \| good	13.471 \| good	30.65 \| good	0.204 \| good	2.711 \| good	0.142 \| good
2026-05-14T20:00:00.000Z	30 \| good	3.346 \| good	14.627 \| good	31.517 \| good	0.209 \| good	3.357 \| good	0.148 \| good
2026-05-14T21:00:00.000Z	32 \| good	2.532 \| good	10.17 \| good	34.916 \| good	0.214 \| good	3.925 \| good	0.152 \| good
2026-05-14T22:00:00.000Z	31 \| good	3.531 \| good	15.415 \| good	33.126 \| good	0.214 \| good	5.237 \| good	0.164 \| good
2026-05-14T23:00:00.000Z	37 \| good	2.448 \| good	9.725 \| good	39.593 \| good	0.218 \| good	6.355 \| good	0.173 \| good
2026-05-15T00:00:00.000Z	36 \| good	1.728 \| good	7.194 \| good	38.519 \| good	0.229 \| good	7.626 \| good	0.18 \| good
2026-05-15T01:00:00.000Z	33 \| good	1.868 \| good	7.683 \| good	36.063 \| good	0.249 \| good	8.962 \| good	0.189 \| good
2026-05-15T02:00:00.000Z	31 \| good	1.442 \| good	6.075 \| good	34.094 \| good	0.264 \| good	9.96 \| good	0.196 \| good
2026-05-15T03:00:00.000Z	31 \| good	2.756 \| good	11.103 \| good	33.204 \| good	0.265 \| good	9.532 \| good	0.192 \| good
2026-05-15T04:00:00.000Z	30 \| good	2.526 \| good	10.097 \| good	31.968 \| good	0.262 \| good	9.135 \| good	0.188 \| good
2026-05-15T05:00:00.000Z	31 \| good	3.383 \| good	14.901 \| good	33.484 \| good	0.249 \| good	8.167 \| good	0.182 \| good
2026-05-15T06:00:00.000Z	31 \| good	3.298 \| good	14.609 \| good	33.979 \| good	0.231 \| good	6.796 \| good	0.17 \| good
2026-05-15T07:00:00.000Z	31 \| good	3.35 \| good	14.636 \| good	33.06 \| good	0.217 \| good	5.484 \| good	0.159 \| good
2026-05-15T08:00:00.000Z	28 \| good	4.335 \| good	18.688 \| good	29.724 \| good	0.206 \| good	4.489 \| good	0.15 \| good
2026-05-15T09:00:00.000Z	27 \| good	4.9 \| good	20.954 \| good	26.056 \| good	0.196 \| good	3.356 \| good	0.14 \| good
2026-05-15T10:00:00.000Z	24 \| good	3.283 \| good	14.545 \| good	26.031 \| good	0.191 \| good	2.857 \| good	0.134 \| good
2026-05-15T11:00:00.000Z	29 \| good	1.998 \| good	8.355 \| good	30.63 \| good	0.185 \| good	2.759 \| good	0.133 \| good
2026-05-15T12:00:00.000Z	28 \| good	2.336 \| good	9.826 \| good	30.258 \| good	0.174 \| good	2.737 \| good	0.132 \| good
2026-05-15T13:00:00.000Z	31 \| good	2.59 \| good	10.35 \| good	33.535 \| good	0.162 \| good	2.84 \| good	0.133 \| good
2026-05-15T14:00:00.000Z	32 \| good	1.876 \| good	7.903 \| good	35.131 \| good	0.159 \| good	3.053 \| good	0.134 \| good
2026-05-15T15:00:00.000Z	32 \| good	2.397 \| good	9.972 \| good	35.125 \| good	0.153 \| good	2.775 \| good	0.131 \| good
2026-05-15T16:00:00.000Z	32 \| good	3.906 \| good	16.971 \| good	35.482 \| good	0.149 \| good	2.539 \| good	0.129 \| good
2026-05-15T17:00:00.000Z	32 \| good	3.542 \| good	15.399 \| good	35.244 \| good	0.145 \| good	2.265 \| good	0.127 \| good
2026-05-15T18:00:00.000Z	33 \| good	3.61 \| good	15.554 \| good	36.219 \| good	0.151 \| good	2.309 \| good	0.129 \| good
2026-05-15T19:00:00.000Z	31 \| good	3.774 \| good	16.455 \| good	33.875 \| good	0.161 \| good	2.313 \| good	0.13 \| good
2026-05-15T20:00:00.000Z	29 \| good	3.676 \| good	16.082 \| good	30.747 \| good	0.176 \| good	2.697 \| good	0.134 \| good
2026-05-15T21:00:00.000Z	31 \| good	4.569 \| good	19.838 \| good	32.601 \| good	0.193 \| good	3.482 \| good	0.142 \| good
2026-05-15T22:00:00.000Z	32 \| good	4.115 \| good	17.946 \| good	35.426 \| good	0.205 \| good	4.295 \| good	0.151 \| good
2026-05-15T23:00:00.000Z	34 \| good	2.374 \| good	9.945 \| good	36.637 \| good	0.212 \| good	5.494 \| good	0.163 \| good
2026-05-16T00:00:00.000Z	34 \| good	3.554 \| good	15.457 \| good	36.569 \| good	0.219 \| good	7.071 \| good	0.174 \| good
2026-05-16T01:00:00.000Z	30 \| good	3.908 \| good	17.378 \| good	31.857 \| good	0.217 \| good	7.285 \| good	0.172 \| good
2026-05-16T02:00:00.000Z	28 \| good	3.944 \| good	17.385 \| good	30.418 \| good	0.218 \| good	7.546 \| good	0.173 \| good
2026-05-16T03:00:00.000Z	27 \| good	3.859 \| good	16.859 \| good	29.476 \| good	0.213 \| good	7.747 \| good	0.174 \| good
2026-05-16T04:00:00.000Z	28 \| good	3.548 \| good	15.701 \| good	29.915 \| good	0.186 \| good	6.68 \| good	0.168 \| good
2026-05-16T05:00:00.000Z	25 \| good	3.246 \| good	14.349 \| good	27.284 \| good	0.156 \| good	5.168 \| good	0.157 \| good
2026-05-16T06:00:00.000Z	27 \| good	2.103 \| good	2.203 \| good	29.132 \| good	0.142 \| good	4.313 \| good	0.149 \| good
2026-05-16T07:00:00.000Z	20 \| good	2.459 \| good	9.937 \| good	22.064 \| good	0.144 \| good	3.746 \| good	0.145 \| good
2026-05-16T08:00:00.000Z	20 \| good	2.407 \| good	9.892 \| good	21.689 \| good	0.157 \| good	3.571 \| good	0.145 \| good
2026-05-16T09:00:00.000Z	21 \| good	1.52 \| good	6.051 \| good	23.061 \| good	0.171 \| good	3.635 \| good	0.148 \| good
2026-05-16T10:00:00.000Z	24 \| good	1.673 \| good	6.947 \| good	25.612 \| good	0.178 \| good	3.664 \| good	0.152 \| good
2026-05-16T11:00:00.000Z	30 \| good	2.369 \| good	9.56 \| good	31.671 \| good	0.187 \| good	3.202 \| good	0.157 \| good
2026-05-16T12:00:00.000Z	27 \| good	3.62 \| good	3.659 \| good	28.935 \| good	0.229 \| good	2.587 \| good	0.159 \| good
2026-05-16T13:00:00.000Z	34 \| good	3.764 \| good	3.846 \| good	36.633 \| good	0.326 \| good	1.697 \| good	0.155 \| good
2026-05-16T14:00:00.000Z	40 \| good	4.16 \| good	4.303 \| good	42.919 \| good	0.42 \| good	1.131 \| good	0.15 \| good
2026-05-16T15:00:00.000Z	44 \| good	4.13 \| good	4.315 \| good	47.241 \| good	0.411 \| good	0.784 \| good	0.144 \| good

Grafton

Get reliable air quality data to drive your business

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

0.19ppm

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 Grafton, Massachusetts?

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

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

In the past 24 hours, the air quality in Grafton, Massachusetts was at its worst at 02:00:00 on 2026-05-14.

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

In the last 24 hours, the best air quality in Grafton, Massachusetts was observed at 06:00:00 on 2026-05-13.

What is the AQI in Grafton, Massachusetts right now?

As of now, the AQI in Grafton, Massachusetts is 37, indicating Good conditions.

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

Grafton, Massachusetts air has the highest levels of O3.

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

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

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

PM_2.5 levels in Grafton, Massachusetts are currently 3.785 μg/m³.

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

The PM₁₀ concentration in Grafton, Massachusetts is 9.967 μg/m³ at the moment.

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

The current carbon monoxide (CO) concentration in Grafton, Massachusetts is 0.177 ppm.

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

Currently, Grafton, Massachusetts has a sulfur dioxide (SO₂) concentration of 0.373 ppb.

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

The current ozone (O₃) level in Grafton, Massachusetts at the moment is 40.331 ppm.

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

Nitrogen dioxide (NO₂) level in Grafton, Massachusetts at the moment is 12.363 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-05-12T16:00:00.000Z	26 \| good	1.603 \| good	5.335 \| good	27.96 \| good	0.282 \| good	3.03 \| good	0.188 \| good
2026-05-12T17:00:00.000Z	31 \| good	1.595 \| good	5.256 \| good	32.669 \| good	0.259 \| good	4.309 \| good	0.146 \| good
2026-05-12T18:00:00.000Z	33 \| good	1.277 \| good	4.562 \| good	35.996 \| good	0.257 \| good	3.259 \| good	0.188 \| good
2026-05-12T19:00:00.000Z	32 \| good	1.061 \| good	3.69 \| good	35.142 \| good	0.259 \| good	2.777 \| good	0.188 \| good
2026-05-12T20:00:00.000Z	36 \| good	0.938 \| good	4.387 \| good	38.668 \| good	0.26 \| good	2.904 \| good	0.171 \| good
2026-05-12T21:00:00.000Z	36 \| good	0.969 \| good	4.443 \| good	39.014 \| good	0.261 \| good	2.669 \| good	0.171 \| good
2026-05-12T22:00:00.000Z	36 \| good	0.852 \| good	3.45 \| good	39.015 \| good	0.259 \| good	2.475 \| good	0.153 \| good
2026-05-12T23:00:00.000Z	36 \| good	0.875 \| good	4.215 \| good	39.245 \| good	0.267 \| good	2.406 \| good	0.171 \| good
2026-05-13T00:00:00.000Z	36 \| good	0.868 \| good	3.3 \| good	39.031 \| good	0.233 \| good	3.571 \| good	0.182 \| good
2026-05-13T01:00:00.000Z	33 \| good	0.914 \| good	3.438 \| good	35.693 \| good	0.237 \| good	3.444 \| good	0.217 \| good
2026-05-13T02:00:00.000Z	29 \| good	1.105 \| good	3.79 \| good	30.551 \| good	0.24 \| good	10.56 \| good	0.216 \| good
2026-05-13T03:00:00.000Z	22 \| good	3.865 \| good	16.738 \| good	20.198 \| good	0.389 \| good	21.172 \| good	0.245 \| good
2026-05-13T04:00:00.000Z	23 \| good	2.491 \| good	4.73 \| good	24.702 \| good	0.278 \| good	11.466 \| good	0.253 \| good
2026-05-13T05:00:00.000Z	22 \| good	2.485 \| good	4.743 \| good	23.845 \| good	0.277 \| good	12.925 \| good	0.235 \| good
2026-05-13T06:00:00.000Z	21 \| good	2.496 \| good	4.851 \| good	22.998 \| good	0.269 \| good	11.866 \| good	0.218 \| good
2026-05-13T07:00:00.000Z	21 \| good	2.47 \| good	4.668 \| good	23.139 \| good	0.396 \| good	7.746 \| good	0.1 \| good
2026-05-13T08:00:00.000Z	22 \| good	3.81 \| good	7.479 \| good	18.701 \| good	0.248 \| good	10.12 \| good	0.153 \| good
2026-05-13T09:00:00.000Z	18 \| good	3.328 \| good	6.726 \| good	19.275 \| good	0.205 \| good	7.975 \| good	0.153 \| good
2026-05-13T10:00:00.000Z	21 \| good	2.971 \| good	6.742 \| good	23.433 \| good	0.275 \| good	7.498 \| good	0.182 \| good
2026-05-13T11:00:00.000Z	21 \| good	2.919 \| good	6.78 \| good	22.886 \| good	0.285 \| good	7.407 \| good	0.21 \| good
2026-05-13T12:00:00.000Z	19 \| good	3.153 \| good	8.119 \| good	20.735 \| good	0.317 \| good	11.246 \| good	0.211 \| good
2026-05-13T13:00:00.000Z	26 \| good	3.15 \| good	8.053 \| good	28.336 \| good	0.316 \| good	12.851 \| good	0.211 \| good
2026-05-13T14:00:00.000Z	30 \| good	3.753 \| good	9.877 \| good	32.163 \| good	0.331 \| good	11.952 \| good	0.212 \| good
2026-05-13T15:00:00.000Z	33 \| good	3.825 \| good	10.698 \| good	36.313 \| good	0.285 \| good	7.538 \| good	0.2 \| good
2026-05-13T16:00:00.000Z	37 \| good	5.647 \| good	24.295 \| good	40.174 \| good	0.27 \| good	1.685 \| good	0.141 \| good
2026-05-13T17:00:00.000Z	32 \| good	3.969 \| good	10.032 \| good	34.564 \| good	0.275 \| good	9.746 \| good	0.194 \| good
2026-05-13T18:00:00.000Z	32 \| good	4.039 \| good	11.68 \| good	35.402 \| good	0.317 \| good	8.605 \| good	0.223 \| good
2026-05-13T19:00:00.000Z	36 \| good	4.051 \| good	11.706 \| good	39.468 \| good	0.317 \| good	8.411 \| good	0.205 \| good
2026-05-13T20:00:00.000Z	44 \| good	4.499 \| good	16.351 \| good	47.126 \| good	0.386 \| good	5.187 \| good	0.2 \| good
2026-05-13T21:00:00.000Z	44 \| good	4.473 \| good	16.625 \| good	46.793 \| good	0.342 \| good	4.373 \| good	0.189 \| good
2026-05-13T22:00:00.000Z	44 \| good	4.482 \| good	15.912 \| good	47.419 \| good	0.341 \| good	3.988 \| good	0.171 \| good
2026-05-13T23:00:00.000Z	46 \| good	4.503 \| good	14.898 \| good	50.132 \| good	0.33 \| good	5.369 \| good	0.2 \| good
2026-05-14T00:00:00.000Z	47 \| good	4.47 \| good	14.9 \| good	51.002 \| good	0.312 \| good	4.282 \| good	0.183 \| good
2026-05-14T01:00:00.000Z	47 \| good	4.522 \| good	13.983 \| good	51.394 \| good	0.286 \| good	4.823 \| good	0.194 \| good
2026-05-14T02:00:00.000Z	48 \| good	4.571 \| good	13.117 \| good	51.634 \| good	0.243 \| good	3.103 \| good	0.194 \| good
2026-05-14T03:00:00.000Z	45 \| good	4.667 \| good	11.916 \| good	49.091 \| good	0.23 \| good	3.758 \| good	0.204 \| good
2026-05-14T04:00:00.000Z	45 \| good	4.643 \| good	11.895 \| good	48.851 \| good	0.23 \| good	3.612 \| good	0.187 \| good
2026-05-14T05:00:00.000Z	43 \| good	4.507 \| good	10.692 \| good	46.209 \| good	0.241 \| good	6.81 \| good	0.165 \| good
2026-05-14T06:00:00.000Z	41 \| good	4.523 \| good	9.902 \| good	44.166 \| good	0.274 \| good	9.139 \| good	0.165 \| good
2026-05-14T07:00:00.000Z	38 \| good	4.526 \| good	9.974 \| good	41.158 \| good	0.275 \| good	10.597 \| good	0.165 \| good
2026-05-14T08:00:00.000Z	38 \| good	4.07 \| good	9.132 \| good	40.661 \| good	0.276 \| good	7.727 \| good	0.173 \| good
2026-05-14T09:00:00.000Z	35 \| good	3.856 \| good	8.827 \| good	38.32 \| good	0.275 \| good	10.618 \| good	0.153 \| good
2026-05-14T10:00:00.000Z	34 \| good	3.833 \| good	8.999 \| good	37.103 \| good	0.373 \| good	13.998 \| good	0.199 \| good
2026-05-14T11:00:00.000Z	38 \| good	3.77 \| good	8.951 \| good	41.141 \| good	0.398 \| good	16.017 \| good	0.265 \| good
2026-05-14T12:00:00.000Z	38 \| good	3.789 \| good	8.96 \| good	41.315 \| good	0.341 \| good	13.329 \| good	0.276 \| good
2026-05-14T13:00:00.000Z	36 \| good	3.777 \| good	8.781 \| good	38.995 \| good	0.341 \| good	13.034 \| good	0.235 \| good
2026-05-14T14:00:00.000Z	37 \| good	3.94 \| good	9.739 \| good	39.504 \| good	0.352 \| good	8.151 \| good	0.171 \| good
2026-05-14T15:00:00.000Z	37 \| good	3.971 \| good	9.8 \| good	39.79 \| good	0.339 \| good	6.734 \| good	0.196 \| good
2026-05-14T15:00:00.000Z	37 \| good	3.785 \| good	9.967 \| good	40.331 \| good	0.373 \| good	12.363 \| good	0.177 \| good
2026-05-14T16:00:00.000Z	37 \| good	3.14 \| good	13.267 \| good	39.527 \| good	0.195 \| good	2.838 \| good	0.145 \| good
2026-05-14T17:00:00.000Z	35 \| good	2.742 \| good	11.511 \| good	37.937 \| good	0.204 \| good	2.542 \| good	0.142 \| good
2026-05-14T18:00:00.000Z	31 \| good	3.022 \| good	12.276 \| good	34.46 \| good	0.207 \| good	2.579 \| good	0.141 \| good
2026-05-14T19:00:00.000Z	29 \| good	3.166 \| good	13.471 \| good	30.65 \| good	0.204 \| good	2.711 \| good	0.142 \| good
2026-05-14T20:00:00.000Z	30 \| good	3.346 \| good	14.627 \| good	31.517 \| good	0.209 \| good	3.357 \| good	0.148 \| good
2026-05-14T21:00:00.000Z	32 \| good	2.532 \| good	10.17 \| good	34.916 \| good	0.214 \| good	3.925 \| good	0.152 \| good
2026-05-14T22:00:00.000Z	31 \| good	3.531 \| good	15.415 \| good	33.126 \| good	0.214 \| good	5.237 \| good	0.164 \| good
2026-05-14T23:00:00.000Z	37 \| good	2.448 \| good	9.725 \| good	39.593 \| good	0.218 \| good	6.355 \| good	0.173 \| good
2026-05-15T00:00:00.000Z	36 \| good	1.728 \| good	7.194 \| good	38.519 \| good	0.229 \| good	7.626 \| good	0.18 \| good
2026-05-15T01:00:00.000Z	33 \| good	1.868 \| good	7.683 \| good	36.063 \| good	0.249 \| good	8.962 \| good	0.189 \| good
2026-05-15T02:00:00.000Z	31 \| good	1.442 \| good	6.075 \| good	34.094 \| good	0.264 \| good	9.96 \| good	0.196 \| good
2026-05-15T03:00:00.000Z	31 \| good	2.756 \| good	11.103 \| good	33.204 \| good	0.265 \| good	9.532 \| good	0.192 \| good
2026-05-15T04:00:00.000Z	30 \| good	2.526 \| good	10.097 \| good	31.968 \| good	0.262 \| good	9.135 \| good	0.188 \| good
2026-05-15T05:00:00.000Z	31 \| good	3.383 \| good	14.901 \| good	33.484 \| good	0.249 \| good	8.167 \| good	0.182 \| good
2026-05-15T06:00:00.000Z	31 \| good	3.298 \| good	14.609 \| good	33.979 \| good	0.231 \| good	6.796 \| good	0.17 \| good
2026-05-15T07:00:00.000Z	31 \| good	3.35 \| good	14.636 \| good	33.06 \| good	0.217 \| good	5.484 \| good	0.159 \| good
2026-05-15T08:00:00.000Z	28 \| good	4.335 \| good	18.688 \| good	29.724 \| good	0.206 \| good	4.489 \| good	0.15 \| good
2026-05-15T09:00:00.000Z	27 \| good	4.9 \| good	20.954 \| good	26.056 \| good	0.196 \| good	3.356 \| good	0.14 \| good
2026-05-15T10:00:00.000Z	24 \| good	3.283 \| good	14.545 \| good	26.031 \| good	0.191 \| good	2.857 \| good	0.134 \| good
2026-05-15T11:00:00.000Z	29 \| good	1.998 \| good	8.355 \| good	30.63 \| good	0.185 \| good	2.759 \| good	0.133 \| good
2026-05-15T12:00:00.000Z	28 \| good	2.336 \| good	9.826 \| good	30.258 \| good	0.174 \| good	2.737 \| good	0.132 \| good
2026-05-15T13:00:00.000Z	31 \| good	2.59 \| good	10.35 \| good	33.535 \| good	0.162 \| good	2.84 \| good	0.133 \| good
2026-05-15T14:00:00.000Z	32 \| good	1.876 \| good	7.903 \| good	35.131 \| good	0.159 \| good	3.053 \| good	0.134 \| good
2026-05-15T15:00:00.000Z	32 \| good	2.397 \| good	9.972 \| good	35.125 \| good	0.153 \| good	2.775 \| good	0.131 \| good
2026-05-15T16:00:00.000Z	32 \| good	3.906 \| good	16.971 \| good	35.482 \| good	0.149 \| good	2.539 \| good	0.129 \| good
2026-05-15T17:00:00.000Z	32 \| good	3.542 \| good	15.399 \| good	35.244 \| good	0.145 \| good	2.265 \| good	0.127 \| good
2026-05-15T18:00:00.000Z	33 \| good	3.61 \| good	15.554 \| good	36.219 \| good	0.151 \| good	2.309 \| good	0.129 \| good
2026-05-15T19:00:00.000Z	31 \| good	3.774 \| good	16.455 \| good	33.875 \| good	0.161 \| good	2.313 \| good	0.13 \| good
2026-05-15T20:00:00.000Z	29 \| good	3.676 \| good	16.082 \| good	30.747 \| good	0.176 \| good	2.697 \| good	0.134 \| good
2026-05-15T21:00:00.000Z	31 \| good	4.569 \| good	19.838 \| good	32.601 \| good	0.193 \| good	3.482 \| good	0.142 \| good
2026-05-15T22:00:00.000Z	32 \| good	4.115 \| good	17.946 \| good	35.426 \| good	0.205 \| good	4.295 \| good	0.151 \| good
2026-05-15T23:00:00.000Z	34 \| good	2.374 \| good	9.945 \| good	36.637 \| good	0.212 \| good	5.494 \| good	0.163 \| good
2026-05-16T00:00:00.000Z	34 \| good	3.554 \| good	15.457 \| good	36.569 \| good	0.219 \| good	7.071 \| good	0.174 \| good
2026-05-16T01:00:00.000Z	30 \| good	3.908 \| good	17.378 \| good	31.857 \| good	0.217 \| good	7.285 \| good	0.172 \| good
2026-05-16T02:00:00.000Z	28 \| good	3.944 \| good	17.385 \| good	30.418 \| good	0.218 \| good	7.546 \| good	0.173 \| good
2026-05-16T03:00:00.000Z	27 \| good	3.859 \| good	16.859 \| good	29.476 \| good	0.213 \| good	7.747 \| good	0.174 \| good
2026-05-16T04:00:00.000Z	28 \| good	3.548 \| good	15.701 \| good	29.915 \| good	0.186 \| good	6.68 \| good	0.168 \| good
2026-05-16T05:00:00.000Z	25 \| good	3.246 \| good	14.349 \| good	27.284 \| good	0.156 \| good	5.168 \| good	0.157 \| good
2026-05-16T06:00:00.000Z	27 \| good	2.103 \| good	2.203 \| good	29.132 \| good	0.142 \| good	4.313 \| good	0.149 \| good
2026-05-16T07:00:00.000Z	20 \| good	2.459 \| good	9.937 \| good	22.064 \| good	0.144 \| good	3.746 \| good	0.145 \| good
2026-05-16T08:00:00.000Z	20 \| good	2.407 \| good	9.892 \| good	21.689 \| good	0.157 \| good	3.571 \| good	0.145 \| good
2026-05-16T09:00:00.000Z	21 \| good	1.52 \| good	6.051 \| good	23.061 \| good	0.171 \| good	3.635 \| good	0.148 \| good
2026-05-16T10:00:00.000Z	24 \| good	1.673 \| good	6.947 \| good	25.612 \| good	0.178 \| good	3.664 \| good	0.152 \| good
2026-05-16T11:00:00.000Z	30 \| good	2.369 \| good	9.56 \| good	31.671 \| good	0.187 \| good	3.202 \| good	0.157 \| good
2026-05-16T12:00:00.000Z	27 \| good	3.62 \| good	3.659 \| good	28.935 \| good	0.229 \| good	2.587 \| good	0.159 \| good
2026-05-16T13:00:00.000Z	34 \| good	3.764 \| good	3.846 \| good	36.633 \| good	0.326 \| good	1.697 \| good	0.155 \| good
2026-05-16T14:00:00.000Z	40 \| good	4.16 \| good	4.303 \| good	42.919 \| good	0.42 \| good	1.131 \| good	0.15 \| good
2026-05-16T15:00:00.000Z	44 \| good	4.13 \| good	4.315 \| good	47.241 \| good	0.411 \| good	0.784 \| good	0.144 \| good

Live air quality index in Grafton, Massachusetts today

Major air pollutants in Grafton, 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

Millbury, Massachusetts

Northbridge, Massachusetts

Westborough, Massachusetts

Shrewsbury, Massachusetts

Worcester, Massachusetts

Auburn, Massachusetts

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Frequently asked questions

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

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

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

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

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

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

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