What are the current PM10 levels at Westborough, Massachusetts?

The current PM10 levels in Westborough, Massachusetts are 10.362 μg/m3.

What are the current sulfur dioxide (SO2) levels at Westborough, Massachusetts?

The current sulfur dioxide (SO2) levels in Westborough, Massachusetts are 0.296 ppb.

What are the current ozone (O3) levels at Westborough, Massachusetts?

The current ozone (O3) levels at Westborough, Massachusetts is 46.983 ppm.

What are the current nitrogen dioxide (NO2) levels at Westborough, Massachusetts?

The current nitrogen dioxide (NO2) levels at Westborough, Massachusetts is 4.875 ppb.

Real-time air quality index in Westborough, Massachusetts today

Q: What are the current PM2.5 levels in Westborough, Massachusetts?

The measured PM2.5 levels in Westborough, Massachusetts at present are 4.445 μg/m3.

Stay updated with real-time air quality in Westborough, 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

Westborough, Massachusetts

Last updated: ... (Local time)

Common air pollutants in Westborough, Massachusetts

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

4.45 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

10.36 μg/m³

155

255

425

605+

Ozone (O₃)

46.98 ppb

201

201+

Sulfur Dioxide (SO₂)

0.30 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.88 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.23 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Looks like we don't have this data available right now

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Westborough, Massachusetts

Scroll To Air Quality Map

Track live Westborough, Massachusetts air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-03-28T01:00:00.000Z	38 \| good	3.122 \| good	8.95 \| good	40.903 \| good	0.218 \| good	5.435 \| good	0.216 \| good
2026-03-28T02:00:00.000Z	34 \| good	4.109 \| good	12.991 \| good	36.887 \| good	0.239 \| good	4.979 \| good	0.201 \| good
2026-03-28T03:00:00.000Z	33 \| good	4.135 \| good	11.825 \| good	35.789 \| good	0.242 \| good	5.591 \| good	0.288 \| good
2026-03-28T04:00:00.000Z	38 \| good	5.326 \| good	23.938 \| good	41.199 \| good	0.244 \| good	5.951 \| good	0.27 \| good
2026-03-28T05:00:00.000Z	33 \| good	4.192 \| good	19.757 \| good	36.268 \| good	0.292 \| good	5.536 \| good	0.243 \| good
2026-03-28T06:00:00.000Z	33 \| good	4.073 \| good	9.71 \| good	35.814 \| good	0.305 \| good	5.595 \| good	0.258 \| good
2026-03-28T07:00:00.000Z	32 \| good	3.974 \| good	13.764 \| good	34.701 \| good	0.28 \| good	4.348 \| good	0.186 \| good
2026-03-28T08:00:00.000Z	35 \| good	3.693 \| good	13.153 \| good	37.741 \| good	0.239 \| good	4.336 \| good	0.186 \| good
2026-03-28T09:00:00.000Z	33 \| good	3.792 \| good	11.549 \| good	36.127 \| good	0.239 \| good	3.322 \| good	0.158 \| good
2026-03-28T10:00:00.000Z	35 \| good	3.332 \| good	7.661 \| good	38.257 \| good	0.255 \| good	3.679 \| good	0.186 \| good
2026-03-28T11:00:00.000Z	35 \| good	3.876 \| good	9.514 \| good	38.377 \| good	0.264 \| good	3.644 \| good	0.201 \| good
2026-03-28T12:00:00.000Z	35 \| good	3.989 \| good	16.306 \| good	38.307 \| good	0.237 \| good	3.94 \| good	0.244 \| good
2026-03-28T13:00:00.000Z	34 \| good	3.676 \| good	10.052 \| good	36.814 \| good	0.236 \| good	2.602 \| good	0.244 \| good
2026-03-28T14:00:00.000Z	37 \| good	4.109 \| good	13.405 \| good	40.418 \| good	0.236 \| good	1.949 \| good	0.201 \| good
2026-03-28T15:00:00.000Z	34 \| good	4.11 \| good	11.36 \| good	36.9 \| good	0.235 \| good	2.305 \| good	0.201 \| good
2026-03-28T16:00:00.000Z	36 \| good	4.256 \| good	11.894 \| good	39.48 \| good	0.248 \| good	2.303 \| good	0.201 \| good
2026-03-28T17:00:00.000Z	37 \| good	3.981 \| good	14.658 \| good	40.193 \| good	0.23 \| good	1.71 \| good	0.201 \| good
2026-03-28T18:00:00.000Z	39 \| good	4.2 \| good	16.126 \| good	41.893 \| good	0.241 \| good	1.604 \| good	0.201 \| good
2026-03-28T19:00:00.000Z	40 \| good	3.915 \| good	10.406 \| good	42.52 \| good	0.23 \| good	1.478 \| good	0.201 \| good
2026-03-28T20:00:00.000Z	38 \| good	4.184 \| good	8.484 \| good	41.161 \| good	0.255 \| good	2.255 \| good	0.201 \| good
2026-03-28T21:00:00.000Z	39 \| good	3.972 \| good	14.062 \| good	41.887 \| good	0.268 \| good	2.249 \| good	0.216 \| good
2026-03-28T22:00:00.000Z	40 \| good	4.044 \| good	13.834 \| good	42.516 \| good	0.395 \| good	2.055 \| good	0.201 \| good
2026-03-28T23:00:00.000Z	37 \| good	4.005 \| good	11.187 \| good	39.706 \| good	0.23 \| good	4.541 \| good	0.23 \| good
2026-03-29T00:00:00.000Z	37 \| good	3.874 \| good	10.53 \| good	39.692 \| good	0.422 \| good	4.816 \| good	0.23 \| good
2026-03-29T01:00:00.000Z	37 \| good	3.635 \| good	9.91 \| good	39.94 \| good	0.408 \| good	7.315 \| good	0.273 \| good
2026-03-29T02:00:00.000Z	36 \| good	3.899 \| good	17.74 \| good	39.094 \| good	0.465 \| good	4.791 \| good	0.245 \| good
2026-03-29T03:00:00.000Z	31 \| good	3.479 \| good	15.13 \| good	33.533 \| good	0.379 \| good	2.881 \| good	0.202 \| good
2026-03-29T04:00:00.000Z	36 \| good	3.615 \| good	11.16 \| good	38.706 \| good	0.428 \| good	2.466 \| good	0.215 \| good
2026-03-29T05:00:00.000Z	31 \| good	3.511 \| good	10.273 \| good	33.814 \| good	0.418 \| good	3.253 \| good	0.215 \| good
2026-03-29T06:00:00.000Z	32 \| good	3.436 \| good	9.997 \| good	35.391 \| good	0.42 \| good	3.115 \| good	0.215 \| good
2026-03-29T07:00:00.000Z	34 \| good	3.482 \| good	13.874 \| good	36.883 \| good	0.42 \| good	4.327 \| good	0.201 \| good
2026-03-29T08:00:00.000Z	31 \| good	3.399 \| good	12.714 \| good	33.504 \| good	0.419 \| good	13.392 \| good	0.215 \| good
2026-03-29T09:00:00.000Z	27 \| good	3.484 \| good	13.819 \| good	29.333 \| good	0.418 \| good	13.775 \| good	0.215 \| good
2026-03-29T10:00:00.000Z	32 \| good	3.691 \| good	7.416 \| good	34.652 \| good	0.419 \| good	15.44 \| good	0.23 \| good
2026-03-29T11:00:00.000Z	26 \| good	4.393 \| good	10.695 \| good	27.735 \| good	0.418 \| good	17.514 \| good	0.26 \| good
2026-03-29T12:00:00.000Z	27 \| good	4.642 \| good	9.95 \| good	29.382 \| good	0.253 \| good	15.917 \| good	0.288 \| good
2026-03-29T13:00:00.000Z	34 \| good	4.562 \| good	9.009 \| good	36.73 \| good	0.256 \| good	8.237 \| good	0.229 \| good
2026-03-29T14:00:00.000Z	34 \| good	4.282 \| good	11.115 \| good	36.986 \| good	0.38 \| good	3.278 \| good	0.216 \| good
2026-03-29T15:00:00.000Z	31 \| good	4.373 \| good	11.259 \| good	33.237 \| good	0.415 \| good	2.768 \| good	0.201 \| good
2026-03-29T16:00:00.000Z	34 \| good	4.207 \| good	12.088 \| good	37.22 \| good	0.259 \| good	3.256 \| good	0.201 \| good
2026-03-29T17:00:00.000Z	38 \| good	3.959 \| good	9.334 \| good	40.538 \| good	0.236 \| good	2.844 \| good	0.201 \| good
2026-03-29T18:00:00.000Z	38 \| good	3.843 \| good	12.856 \| good	41.306 \| good	0.237 \| good	3.656 \| good	0.201 \| good
2026-03-29T19:00:00.000Z	40 \| good	3.82 \| good	8.968 \| good	42.986 \| good	0.242 \| good	3.66 \| good	0.201 \| good
2026-03-29T20:00:00.000Z	42 \| good	4.33 \| good	9.763 \| good	44.986 \| good	0.262 \| good	3.217 \| good	0.201 \| good
2026-03-29T21:00:00.000Z	42 \| good	4.193 \| good	14.133 \| good	44.653 \| good	0.292 \| good	2.367 \| good	0.201 \| good
2026-03-29T22:00:00.000Z	42 \| good	4.248 \| good	18.087 \| good	44.692 \| good	0.313 \| good	3.003 \| good	0.215 \| good
2026-03-29T23:00:00.000Z	43 \| good	3.789 \| good	13.051 \| good	45.982 \| good	0.279 \| good	5.487 \| good	0.23 \| good
2026-03-30T00:00:00.000Z	44 \| good	4.445 \| good	10.362 \| good	46.983 \| good	0.296 \| good	4.875 \| good	0.23 \| good
2026-03-30T00:00:00.000Z	44 \| good	4.445 \| good	10.362 \| good	46.983 \| good	0.296 \| good	4.875 \| good	0.23 \| good
2026-03-30T01:00:00.000Z	40 \| good	5.718 \| good	24.895 \| good	43.293 \| good	1.614 \| good	7.297 \| good	0.198 \| good
2026-03-30T02:00:00.000Z	36 \| good	5.234 \| good	22.332 \| good	38.878 \| good	1.626 \| good	6.451 \| good	0.198 \| good
2026-03-30T03:00:00.000Z	38 \| good	6.544 \| good	29.247 \| good	37.49 \| good	1.637 \| good	5.605 \| good	0.197 \| good
2026-03-30T04:00:00.000Z	38 \| good	6.872 \| good	30.407 \| good	36.353 \| good	1.484 \| good	4.898 \| good	0.189 \| good
2026-03-30T05:00:00.000Z	38 \| good	7.08 \| good	31.403 \| good	36.399 \| good	1.332 \| good	4.191 \| good	0.181 \| good
2026-03-30T06:00:00.000Z	38 \| good	7.333 \| good	32.425 \| good	33.466 \| good	1.18 \| good	3.483 \| good	0.173 \| good
2026-03-30T07:00:00.000Z	35 \| good	6.149 \| good	27.306 \| good	37.843 \| good	1.07 \| good	3.1 \| good	0.166 \| good
2026-03-30T08:00:00.000Z	33 \| good	5.987 \| good	26.92 \| good	36.456 \| good	0.959 \| good	2.717 \| good	0.159 \| good
2026-03-30T09:00:00.000Z	31 \| good	4.379 \| good	19 \| good	34.256 \| good	0.849 \| good	2.334 \| good	0.151 \| good
2026-03-30T10:00:00.000Z	29 \| good	1.41 \| good	5.869 \| good	30.855 \| good	0.93 \| good	3.011 \| good	0.161 \| good
2026-03-30T11:00:00.000Z	28 \| good	1.543 \| good	6.218 \| good	30.488 \| good	1.011 \| good	3.689 \| good	0.17 \| good
2026-03-30T12:00:00.000Z	29 \| good	2.949 \| good	12.118 \| good	30.7 \| good	1.092 \| good	4.366 \| good	0.179 \| good
2026-03-30T13:00:00.000Z	31 \| good	4.95 \| good	21.372 \| good	32.589 \| good	1.274 \| good	4.398 \| good	0.187 \| good
2026-03-30T14:00:00.000Z	38 \| good	6.898 \| good	30.432 \| good	36.197 \| good	1.457 \| good	4.43 \| good	0.195 \| good
2026-03-30T15:00:00.000Z	33 \| good	6.315 \| good	28.105 \| good	33.653 \| good	1.639 \| good	4.462 \| good	0.202 \| good
2026-03-30T16:00:00.000Z	38 \| good	7.023 \| good	31.198 \| good	34.326 \| good	1.779 \| good	4.233 \| good	0.196 \| good
2026-03-30T17:00:00.000Z	44 \| good	8.195 \| good	36.018 \| good	34.298 \| good	1.918 \| good	4.004 \| good	0.19 \| good
2026-03-30T18:00:00.000Z	54 \| moderate	10.603 \| good	47.123 \| good	40.493 \| good	2.057 \| good	3.775 \| good	0.184 \| good
2026-03-30T19:00:00.000Z	52 \| moderate	9.983 \| good	44.755 \| good	40.321 \| good	1.996 \| good	3.912 \| good	0.181 \| good
2026-03-30T20:00:00.000Z	49 \| good	9.09 \| good	40.604 \| good	41.199 \| good	1.935 \| good	4.05 \| good	0.177 \| good
2026-03-30T21:00:00.000Z	49 \| good	8.98 \| good	39.401 \| good	39.964 \| good	1.874 \| good	4.187 \| good	0.174 \| good
2026-03-30T22:00:00.000Z	44 \| good	7.845 \| good	34.135 \| good	36.388 \| good	1.914 \| good	5.264 \| good	0.181 \| good
2026-03-30T23:00:00.000Z	44 \| good	8.064 \| good	35.053 \| good	33.815 \| good	1.954 \| good	6.341 \| good	0.189 \| good
2026-03-31T00:00:00.000Z	44 \| good	8.017 \| good	35.049 \| good	30.336 \| good	1.994 \| good	7.418 \| good	0.197 \| good
2026-03-31T01:00:00.000Z	44 \| good	8.173 \| good	35.899 \| good	30.166 \| good	2.149 \| good	7.505 \| good	0.199 \| good
2026-03-31T02:00:00.000Z	54 \| moderate	10.865 \| good	47.826 \| good	32.858 \| good	2.304 \| good	7.592 \| good	0.202 \| good
2026-03-31T03:00:00.000Z	58 \| moderate	13.234 \| fine	59.923 \| fine	30.918 \| good	2.459 \| good	7.68 \| good	0.204 \| good
2026-03-31T04:00:00.000Z	60 \| moderate	13.853 \| fine	62.502 \| fine	26.919 \| good	2.478 \| good	7.245 \| good	0.204 \| good
2026-03-31T05:00:00.000Z	58 \| moderate	13.486 \| fine	61.188 \| fine	25.172 \| good	2.496 \| good	6.81 \| good	0.205 \| good
2026-03-31T06:00:00.000Z	62 \| moderate	14.904 \| fine	15.145 \| good	37.595 \| good	2.523 \| good	6.369 \| good	0.205 \| good
2026-03-31T07:00:00.000Z	58 \| moderate	12.803 \| fine	57.178 \| fine	28.43 \| good	2.423 \| good	6.096 \| good	0.201 \| good
2026-03-31T08:00:00.000Z	58 \| moderate	13.174 \| fine	59.107 \| fine	29.589 \| good	2.332 \| good	5.816 \| good	0.197 \| good
2026-03-31T09:00:00.000Z	58 \| moderate	13.148 \| fine	59.129 \| fine	21.116 \| good	2.24 \| good	5.536 \| good	0.193 \| good
2026-03-31T10:00:00.000Z	44 \| good	7.654 \| good	33.675 \| good	25.938 \| good	2.078 \| good	6.49 \| good	0.194 \| good
2026-03-31T11:00:00.000Z	38 \| good	6.785 \| good	30.39 \| good	25.843 \| good	1.915 \| good	7.444 \| good	0.195 \| good
2026-03-31T12:00:00.000Z	60 \| moderate	13.698 \| fine	13.929 \| good	34.094 \| good	1.766 \| good	8.428 \| good	0.196 \| good
2026-03-31T13:00:00.000Z	58 \| moderate	13.037 \| fine	13.258 \| good	35.122 \| good	1.718 \| good	7.549 \| good	0.193 \| good
2026-03-31T14:00:00.000Z	54 \| moderate	10.969 \| good	11.21 \| good	36.149 \| good	1.669 \| good	6.67 \| good	0.189 \| good
2026-03-31T15:00:00.000Z	49 \| good	9.309 \| good	9.61 \| good	37.177 \| good	1.621 \| good	5.791 \| good	0.185 \| good
2026-03-31T16:00:00.000Z	49 \| good	9.345 \| good	9.697 \| good	38.863 \| good	1.53 \| good	5.355 \| good	0.183 \| good
2026-03-31T17:00:00.000Z	56 \| moderate	11.513 \| good	51.284 \| good	28.304 \| good	1.442 \| good	4.94 \| good	0.18 \| good
2026-03-31T18:00:00.000Z	52 \| moderate	9.575 \| good	9.904 \| good	42.235 \| good	1.349 \| good	4.482 \| good	0.179 \| good
2026-03-31T19:00:00.000Z	49 \| good	9.466 \| good	9.819 \| good	41.778 \| good	1.325 \| good	4.995 \| good	0.184 \| good
2026-03-31T20:00:00.000Z	52 \| moderate	9.713 \| good	10.109 \| good	41.322 \| good	1.3 \| good	5.508 \| good	0.189 \| good
2026-03-31T21:00:00.000Z	52 \| moderate	10.42 \| good	10.887 \| good	40.865 \| good	1.275 \| good	6.021 \| good	0.194 \| good
2026-03-31T22:00:00.000Z	54 \| moderate	11.412 \| good	11.999 \| good	36.934 \| good	1.283 \| good	7.912 \| good	0.209 \| good
2026-03-31T23:00:00.000Z	56 \| moderate	11.658 \| good	12.332 \| good	33.003 \| good	1.291 \| good	9.802 \| good	0.225 \| good
2026-04-01T00:00:00.000Z	56 \| moderate	11.922 \| good	12.665 \| good	29.072 \| good	1.299 \| good	11.693 \| good	0.241 \| good

Westborough

Empower business decisions with accurate air quality data

Westborough, Massachusetts air quality map: Real-time AQI near you

0.20ppm

How accurate is Massachusetts, USA air quality data?

Air quality measurements for Massachusetts, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.

Source: Ambee Data Sources

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Frequently asked questions

How frequently is the air quality data for Westborough, Massachusetts updated?

Air quality data for Westborough, Massachusetts is updated on an hourly basis.

When did Westborough, Massachusetts experience the worst air quality in the last 24 hours?

The worst air quality in Westborough, Massachusetts was recorded at 11:00:00 on 2026-03-29.

When did Westborough, Massachusetts have its best air quality in the last 24 hours?

The best air quality in Westborough, Massachusetts was recorded at 11:00:00 on 2026-03-29.

What is the real-time air quality index for Westborough, Massachusetts?

The real-time air quality index in Westborough, Massachusetts is 44, currently categorized as Good.

Which pollutant is found most often in Westborough, Massachusetts?

The most common pollutant in Westborough, Massachusetts is O3.

What can I do if the air quality in Westborough, Massachusetts is poor?

If the air quality in Westborough, Massachusetts is poor, limit outdoor activities and use a mask to safeguard your health.

What are the current PM_2.5 levels in Westborough, Massachusetts?

The measured PM_2.5 levels in Westborough, Massachusetts at present are 4.445 μg/m³.

What are the current PM₁₀ levels at Westborough, Massachusetts?

The current PM₁₀ levels in Westborough, Massachusetts are 10.362 μg/m³.

What are the current carbon monoxide (CO) levels at Westborough, Massachusetts?

The current carbon monoxide (CO) level in Westborough, Massachusetts is 0.23 ppm.

What are the current sulfur dioxide (SO₂) levels at Westborough, Massachusetts?

The current sulfur dioxide (SO₂) levels in Westborough, Massachusetts are 0.296 ppb.

What are the current ozone (O₃) levels at Westborough, Massachusetts?

The current ozone (O₃) levels at Westborough, Massachusetts is 46.983 ppm.

What are the current nitrogen dioxide (NO₂) levels at Westborough, Massachusetts?

The current nitrogen dioxide (NO₂) levels at Westborough, Massachusetts is 4.875 ppb.

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