What are the current PM10 levels at Westborough, Massachusetts?

The current PM10 levels in Westborough, Massachusetts are 41.541 μg/m3.

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

The current sulfur dioxide (SO2) levels in Westborough, Massachusetts are 0.804 ppb.

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

The current ozone (O3) levels at Westborough, Massachusetts is 19.948 ppm.

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

The current nitrogen dioxide (NO2) levels at Westborough, Massachusetts is 4.053 ppb.

Live air quality index in Westborough, Massachusetts today

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

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)

Moderate

Westborough, Massachusetts

Last updated: ... (Local time)

Major air pollutants in Westborough, Massachusetts

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

12.37 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

41.54 μg/m³

155

255

425

605+

Ozone (O₃)

19.95 ppb

201

201+

Sulfur Dioxide (SO₂)

0.80 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.05 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.20 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Westborough, Massachusetts

Get Live Pollen Counts

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
2025-06-05T20:00:00.000Z	74 \| moderate	18.182 \| fine	73.782 \| fine	61.785 \| fine	0.356 \| good	7.872 \| good	0.289 \| good
2025-06-05T21:00:00.000Z	77 \| moderate	18.012 \| fine	43.083 \| good	62.541 \| fine	0.61 \| good	6.124 \| good	0.289 \| good
2025-06-05T22:00:00.000Z	67 \| moderate	17.953 \| fine	59.943 \| fine	59.473 \| fine	0.571 \| good	6.249 \| good	0.334 \| good
2025-06-05T23:00:00.000Z	74 \| moderate	17.748 \| fine	71.954 \| fine	62.26 \| fine	0.592 \| good	5.681 \| good	0.349 \| good
2025-06-06T00:00:00.000Z	67 \| moderate	18.2 \| fine	74.093 \| fine	60.399 \| fine	0.567 \| good	6.154 \| good	0.362 \| good
2025-06-06T01:00:00.000Z	74 \| moderate	18.381 \| fine	58.112 \| fine	61.782 \| fine	0.535 \| good	6.763 \| good	0.362 \| good
2025-06-06T02:00:00.000Z	77 \| moderate	18.782 \| fine	48.978 \| good	62.823 \| fine	0.556 \| good	7.223 \| good	0.362 \| good
2025-06-06T03:00:00.000Z	108 \| sensitive	19.365 \| fine	80.566 \| fine	72.628 \| moderate	0.594 \| good	16.693 \| good	0.406 \| good
2025-06-06T04:00:00.000Z	69 \| moderate	18.729 \| fine	71.446 \| fine	58.51 \| fine	0.608 \| good	8.152 \| good	0.346 \| good
2025-06-06T05:00:00.000Z	69 \| moderate	18.705 \| fine	61.453 \| fine	48.936 \| good	0.733 \| good	16.314 \| good	0.287 \| good
2025-06-06T06:00:00.000Z	64 \| moderate	16.22 \| fine	56.835 \| fine	41.645 \| good	0.75 \| good	16.453 \| good	0.227 \| good
2025-06-06T07:00:00.000Z	66 \| moderate	16.858 \| fine	40.789 \| good	42.889 \| good	0.58 \| good	5.941 \| good	0.269 \| good
2025-06-06T08:00:00.000Z	67 \| moderate	18.477 \| fine	75.093 \| fine	37.324 \| good	0.544 \| good	8.871 \| good	0.227 \| good
2025-06-06T09:00:00.000Z	69 \| moderate	19.027 \| fine	37.983 \| good	37.418 \| good	0.613 \| good	5.887 \| good	0.291 \| good
2025-06-06T10:00:00.000Z	66 \| moderate	17.338 \| fine	52.338 \| good	32.381 \| good	0.736 \| good	4.87 \| good	0.291 \| good
2025-06-06T11:00:00.000Z	67 \| moderate	18.336 \| fine	45.164 \| good	31.331 \| good	0.729 \| good	5.509 \| good	0.323 \| good
2025-06-06T12:00:00.000Z	69 \| moderate	18.523 \| fine	49.651 \| good	37.257 \| good	0.736 \| good	6.128 \| good	0.321 \| good
2025-06-06T13:00:00.000Z	67 \| moderate	17.532 \| fine	41.818 \| good	39.124 \| good	0.792 \| good	7.077 \| good	0.261 \| good
2025-06-06T14:00:00.000Z	64 \| moderate	16.1 \| fine	28.419 \| good	37.535 \| good	0.618 \| good	10.473 \| good	0.261 \| good
2025-06-06T15:00:00.000Z	62 \| moderate	14.795 \| fine	46.51 \| good	39.53 \| good	0.509 \| good	6.572 \| good	0.261 \| good
2025-06-06T16:00:00.000Z	58 \| moderate	13.409 \| fine	39.108 \| good	49.228 \| good	0.387 \| good	6.524 \| good	0.261 \| good
2025-06-06T17:00:00.000Z	58 \| moderate	13.374 \| fine	34.505 \| good	42.8 \| good	0.323 \| good	5.746 \| good	0.247 \| good
2025-06-06T18:00:00.000Z	58 \| moderate	12.903 \| fine	46.933 \| good	48.968 \| good	0.493 \| good	6.611 \| good	0.261 \| good
2025-06-06T19:00:00.000Z	64 \| moderate	16.187 \| fine	64.138 \| fine	59.431 \| fine	0.406 \| good	7.835 \| good	0.35 \| good
2025-06-06T20:00:00.000Z	64 \| moderate	16.217 \| fine	49.475 \| good	54.772 \| good	0.565 \| good	6.033 \| good	0.292 \| good
2025-06-06T21:00:00.000Z	64 \| moderate	15.207 \| fine	43.595 \| good	59.065 \| fine	0.756 \| good	6.91 \| good	0.333 \| good
2025-06-06T22:00:00.000Z	66 \| moderate	16.822 \| fine	52.166 \| good	39.996 \| good	0.545 \| good	9.271 \| good	0.321 \| good
2025-06-06T23:00:00.000Z	66 \| moderate	16.59 \| fine	50.57 \| good	56.196 \| fine	0.89 \| good	8.726 \| good	0.322 \| good
2025-06-07T00:00:00.000Z	64 \| moderate	16.49 \| fine	54.937 \| good	35.324 \| good	0.804 \| good	7.294 \| good	0.336 \| good
2025-06-07T01:00:00.000Z	62 \| moderate	15.404 \| fine	26.802 \| good	30.542 \| good	0.352 \| good	5.402 \| good	0.306 \| good
2025-06-07T02:00:00.000Z	60 \| moderate	13.649 \| fine	47.277 \| good	30.717 \| good	0.721 \| good	5.381 \| good	0.304 \| good
2025-06-07T03:00:00.000Z	60 \| moderate	13.783 \| fine	58.012 \| fine	28.968 \| good	0.814 \| good	6.988 \| good	0.26 \| good
2025-06-07T04:00:00.000Z	66 \| moderate	17.058 \| fine	75.927 \| fine	30.902 \| good	0.822 \| good	4.553 \| good	0.225 \| good
2025-06-07T05:00:00.000Z	38 \| good	6.532 \| good	34.928 \| good	32.245 \| good	1.013 \| good	5.295 \| good	0.152 \| good
2025-06-07T06:00:00.000Z	49 \| good	8.8 \| good	40.937 \| good	35.998 \| good	0.994 \| good	6.791 \| good	0.152 \| good
2025-06-07T07:00:00.000Z	33 \| good	6.045 \| good	27.514 \| good	26.135 \| good	0.698 \| good	4.601 \| good	0.206 \| good
2025-06-07T08:00:00.000Z	66 \| moderate	16.735 \| fine	41.808 \| good	28.211 \| good	0.752 \| good	4.923 \| good	0.206 \| good
2025-06-07T09:00:00.000Z	64 \| moderate	16.013 \| fine	33.606 \| good	22.251 \| good	0.775 \| good	4.805 \| good	0.26 \| good
2025-06-07T10:00:00.000Z	62 \| moderate	14.515 \| fine	35.165 \| good	13.678 \| good	0.785 \| good	6.696 \| good	0.232 \| good
2025-06-07T11:00:00.000Z	56 \| moderate	12.315 \| fine	23.203 \| good	16.269 \| good	0.754 \| good	4.218 \| good	0.2 \| good
2025-06-07T12:00:00.000Z	56 \| moderate	12.37 \| fine	41.541 \| good	19.948 \| good	0.804 \| good	4.053 \| good	0.2 \| good
2025-06-07T13:00:00.000Z	54 \| moderate	11.28 \| good	33.113 \| good	17.733 \| good	0.801 \| good	5.094 \| good	0.272 \| good
2025-06-07T14:00:00.000Z	54 \| moderate	11.243 \| good	45.631 \| good	23.076 \| good	0.852 \| good	5.369 \| good	0.272 \| good
2025-06-07T15:00:00.000Z	52 \| moderate	10.125 \| good	26.816 \| good	19.26 \| good	0.832 \| good	5.569 \| good	0.303 \| good
2025-06-07T16:00:00.000Z	49 \| good	9.369 \| good	31.632 \| good	20.858 \| good	0.827 \| good	7.396 \| good	0.258 \| good
2025-06-07T17:00:00.000Z	52 \| moderate	9.64 \| good	38.771 \| good	25.77 \| good	0.958 \| good	6.744 \| good	0.258 \| good
2025-06-07T18:00:00.000Z	27 \| good	4.709 \| good	26.571 \| good	26.577 \| good	0.931 \| good	3.453 \| good	0.244 \| good
2025-06-07T13:00:00.000Z	56 \| moderate	12.37 \| fine	41.541 \| good	19.948 \| good	0.804 \| good	4.053 \| good	0.2 \| good
2025-06-07T14:00:00.000Z	52 \| moderate	10.326 \| good	45.846 \| good	35.132 \| good	0.227 \| good	2.247 \| good	0.147 \| good
2025-06-07T15:00:00.000Z	54 \| moderate	10.91 \| good	48.202 \| good	38.119 \| good	0.253 \| good	2.475 \| good	0.149 \| good
2025-06-07T16:00:00.000Z	56 \| moderate	11.722 \| good	51.803 \| good	38.198 \| good	0.325 \| good	1.618 \| good	0.147 \| good
2025-06-07T17:00:00.000Z	56 \| moderate	11.932 \| good	52.696 \| good	37.438 \| good	0.343 \| good	1.841 \| good	0.147 \| good
2025-06-07T18:00:00.000Z	56 \| moderate	12.296 \| fine	55.184 \| fine	36.694 \| good	0.361 \| good	2.063 \| good	0.147 \| good
2025-06-07T19:00:00.000Z	56 \| moderate	11.508 \| good	51.017 \| good	41.1 \| good	0.309 \| good	1.834 \| good	0.176 \| good
2025-06-07T20:00:00.000Z	54 \| moderate	11.13 \| good	49.235 \| good	43.516 \| good	0.341 \| good	1.961 \| good	0.172 \| good
2025-06-07T21:00:00.000Z	54 \| moderate	11.285 \| good	50.375 \| good	41.475 \| good	0.373 \| good	2.087 \| good	0.168 \| good
2025-06-07T22:00:00.000Z	56 \| moderate	12.03 \| good	54.348 \| good	40.734 \| good	0.221 \| good	4.264 \| good	0.225 \| good
2025-06-07T23:00:00.000Z	56 \| moderate	12.36 \| fine	55.921 \| fine	39.566 \| good	0.253 \| good	4.998 \| good	0.224 \| good
2025-06-08T00:00:00.000Z	52 \| moderate	9.554 \| good	42.036 \| good	38.514 \| good	0.286 \| good	5.731 \| good	0.223 \| good
2025-06-08T01:00:00.000Z	49 \| good	9.482 \| good	42.066 \| good	34.511 \| good	0.274 \| good	4.323 \| good	0.242 \| good
2025-06-08T02:00:00.000Z	52 \| moderate	9.798 \| good	43.404 \| good	31.173 \| good	0.333 \| good	5.392 \| good	0.245 \| good
2025-06-08T03:00:00.000Z	52 \| moderate	10.167 \| good	44.993 \| good	28.037 \| good	0.392 \| good	6.462 \| good	0.247 \| good
2025-06-08T04:00:00.000Z	56 \| moderate	12.05 \| good	54.213 \| good	27.282 \| good	0.372 \| good	3.496 \| good	0.233 \| good
2025-06-08T05:00:00.000Z	60 \| moderate	13.607 \| fine	61.107 \| fine	25.047 \| good	0.469 \| good	4.506 \| good	0.231 \| good
2025-06-08T06:00:00.000Z	58 \| moderate	13.131 \| fine	58.783 \| fine	24.982 \| good	0.566 \| good	5.516 \| good	0.23 \| good
2025-06-08T07:00:00.000Z	54 \| moderate	10.974 \| good	48.548 \| good	23.445 \| good	0.428 \| good	2.772 \| good	0.238 \| good
2025-06-08T08:00:00.000Z	54 \| moderate	11.16 \| good	49.197 \| good	22.137 \| good	0.509 \| good	3.43 \| good	0.23 \| good
2025-06-08T09:00:00.000Z	60 \| moderate	14.065 \| fine	63.265 \| fine	17.674 \| good	0.59 \| good	4.088 \| good	0.221 \| good
2025-06-08T10:00:00.000Z	62 \| moderate	14.84 \| fine	65.948 \| fine	18.489 \| good	0.459 \| good	2.478 \| good	0.253 \| good
2025-06-08T11:00:00.000Z	64 \| moderate	16.277 \| fine	71.812 \| fine	20.611 \| good	0.542 \| good	2.882 \| good	0.245 \| good
2025-06-08T12:00:00.000Z	66 \| moderate	16.817 \| fine	75.154 \| fine	26.448 \| good	0.625 \| good	3.287 \| good	0.236 \| good
2025-06-08T13:00:00.000Z	62 \| moderate	14.671 \| fine	65.48 \| fine	32.54 \| good	0.494 \| good	1.876 \| good	0.254 \| good
2025-06-08T14:00:00.000Z	56 \| moderate	12.247 \| fine	54.971 \| good	34.718 \| good	0.515 \| good	2.101 \| good	0.254 \| good
2025-06-08T15:00:00.000Z	54 \| moderate	11.121 \| good	49.252 \| good	37.011 \| good	0.536 \| good	2.326 \| good	0.255 \| good
2025-06-08T16:00:00.000Z	54 \| moderate	10.611 \| good	47.328 \| good	41.833 \| good	0.27 \| good	1.139 \| good	0.27 \| good
2025-06-08T17:00:00.000Z	52 \| moderate	9.956 \| good	44.336 \| good	45.401 \| good	0.276 \| good	1.247 \| good	0.27 \| good
2025-06-08T18:00:00.000Z	49 \| good	8.741 \| good	38.467 \| good	44.369 \| good	0.281 \| good	1.355 \| good	0.271 \| good
2025-06-08T19:00:00.000Z	49 \| good	9.169 \| good	41.165 \| good	44.228 \| good	0.265 \| good	1.699 \| good	0.27 \| good
2025-06-08T20:00:00.000Z	56 \| moderate	11.939 \| good	53.108 \| good	43.065 \| good	0.284 \| good	1.881 \| good	0.268 \| good
2025-06-08T21:00:00.000Z	62 \| moderate	14.642 \| fine	65.325 \| fine	41.968 \| good	0.303 \| good	2.062 \| good	0.266 \| good
2025-06-08T22:00:00.000Z	64 \| moderate	15.929 \| fine	71.048 \| fine	37.368 \| good	0.487 \| good	4.505 \| good	0.28 \| good
2025-06-08T23:00:00.000Z	64 \| moderate	15.818 \| fine	70.785 \| fine	33.136 \| good	0.528 \| good	4.87 \| good	0.277 \| good
2025-06-09T00:00:00.000Z	58 \| moderate	12.729 \| fine	57.098 \| fine	29.336 \| good	0.569 \| good	5.235 \| good	0.274 \| good
2025-06-09T01:00:00.000Z	56 \| moderate	11.991 \| good	53.855 \| good	29.005 \| good	0.768 \| good	6.88 \| good	0.286 \| good
2025-06-09T02:00:00.000Z	56 \| moderate	11.602 \| good	51.413 \| good	29.342 \| good	0.838 \| good	7.723 \| good	0.289 \| good
2025-06-09T03:00:00.000Z	49 \| good	9.004 \| good	39.566 \| good	31.832 \| good	0.909 \| good	8.566 \| good	0.292 \| good
2025-06-09T04:00:00.000Z	44 \| good	8.336 \| good	36.722 \| good	34.796 \| good	0.845 \| good	6.365 \| good	0.283 \| good
2025-06-09T05:00:00.000Z	49 \| good	8.732 \| good	38.015 \| good	32.776 \| good	0.908 \| good	6.746 \| good	0.284 \| good
2025-06-09T06:00:00.000Z	60 \| moderate	13.824 \| fine	14.339 \| good	34.264 \| good	0.972 \| good	7.092 \| good	0.285 \| good
2025-06-09T07:00:00.000Z	49 \| good	8.789 \| good	38.334 \| good	32.785 \| good	0.839 \| good	4.623 \| good	0.272 \| good
2025-06-09T08:00:00.000Z	49 \| good	8.725 \| good	38.241 \| good	31.248 \| good	0.886 \| good	4.883 \| good	0.272 \| good
2025-06-09T09:00:00.000Z	38 \| good	7.419 \| good	32.449 \| good	27.14 \| good	0.934 \| good	5.144 \| good	0.272 \| good
2025-06-09T10:00:00.000Z	38 \| good	7.275 \| good	32.171 \| good	25.042 \| good	0.755 \| good	2.624 \| good	0.269 \| good
2025-06-09T11:00:00.000Z	44 \| good	8.487 \| good	37.169 \| good	25.55 \| good	0.802 \| good	2.919 \| good	0.271 \| good
2025-06-09T12:00:00.000Z	79 \| moderate	23.957 \| fine	25.028 \| good	38.015 \| good	0.842 \| good	3.178 \| good	0.273 \| good
2025-06-09T13:00:00.000Z	77 \| moderate	22.98 \| fine	24.079 \| good	44.364 \| good	0.357 \| good	2.04 \| good	0.206 \| 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 01:00:00 on 2025-06-06.

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

The best air quality in Westborough, Massachusetts was recorded at 07:00:00 on 2025-06-07.

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

The real-time air quality index in Westborough, Massachusetts is 56, currently categorized as Moderate.

Which pollutant is found most often in Westborough, Massachusetts?

The most common pollutant in Westborough, Massachusetts is PM2.5.

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 12.37 μg/m³.

What are the current PM₁₀ levels at Westborough, Massachusetts?

The current PM₁₀ levels in Westborough, Massachusetts are 41.541 μg/m³.

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

The current carbon monoxide (CO) level in Westborough, Massachusetts is 0.2 ppm.

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

The current sulfur dioxide (SO₂) levels in Westborough, Massachusetts are 0.804 ppb.

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

The current ozone (O₃) levels at Westborough, Massachusetts is 19.948 ppm.

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

The current nitrogen dioxide (NO₂) levels at Westborough, Massachusetts is 4.053 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-05T20:00:00.000Z	74 \| moderate	18.182 \| fine	73.782 \| fine	61.785 \| fine	0.356 \| good	7.872 \| good	0.289 \| good
2025-06-05T21:00:00.000Z	77 \| moderate	18.012 \| fine	43.083 \| good	62.541 \| fine	0.61 \| good	6.124 \| good	0.289 \| good
2025-06-05T22:00:00.000Z	67 \| moderate	17.953 \| fine	59.943 \| fine	59.473 \| fine	0.571 \| good	6.249 \| good	0.334 \| good
2025-06-05T23:00:00.000Z	74 \| moderate	17.748 \| fine	71.954 \| fine	62.26 \| fine	0.592 \| good	5.681 \| good	0.349 \| good
2025-06-06T00:00:00.000Z	67 \| moderate	18.2 \| fine	74.093 \| fine	60.399 \| fine	0.567 \| good	6.154 \| good	0.362 \| good
2025-06-06T01:00:00.000Z	74 \| moderate	18.381 \| fine	58.112 \| fine	61.782 \| fine	0.535 \| good	6.763 \| good	0.362 \| good
2025-06-06T02:00:00.000Z	77 \| moderate	18.782 \| fine	48.978 \| good	62.823 \| fine	0.556 \| good	7.223 \| good	0.362 \| good
2025-06-06T03:00:00.000Z	108 \| sensitive	19.365 \| fine	80.566 \| fine	72.628 \| moderate	0.594 \| good	16.693 \| good	0.406 \| good
2025-06-06T04:00:00.000Z	69 \| moderate	18.729 \| fine	71.446 \| fine	58.51 \| fine	0.608 \| good	8.152 \| good	0.346 \| good
2025-06-06T05:00:00.000Z	69 \| moderate	18.705 \| fine	61.453 \| fine	48.936 \| good	0.733 \| good	16.314 \| good	0.287 \| good
2025-06-06T06:00:00.000Z	64 \| moderate	16.22 \| fine	56.835 \| fine	41.645 \| good	0.75 \| good	16.453 \| good	0.227 \| good
2025-06-06T07:00:00.000Z	66 \| moderate	16.858 \| fine	40.789 \| good	42.889 \| good	0.58 \| good	5.941 \| good	0.269 \| good
2025-06-06T08:00:00.000Z	67 \| moderate	18.477 \| fine	75.093 \| fine	37.324 \| good	0.544 \| good	8.871 \| good	0.227 \| good
2025-06-06T09:00:00.000Z	69 \| moderate	19.027 \| fine	37.983 \| good	37.418 \| good	0.613 \| good	5.887 \| good	0.291 \| good
2025-06-06T10:00:00.000Z	66 \| moderate	17.338 \| fine	52.338 \| good	32.381 \| good	0.736 \| good	4.87 \| good	0.291 \| good
2025-06-06T11:00:00.000Z	67 \| moderate	18.336 \| fine	45.164 \| good	31.331 \| good	0.729 \| good	5.509 \| good	0.323 \| good
2025-06-06T12:00:00.000Z	69 \| moderate	18.523 \| fine	49.651 \| good	37.257 \| good	0.736 \| good	6.128 \| good	0.321 \| good
2025-06-06T13:00:00.000Z	67 \| moderate	17.532 \| fine	41.818 \| good	39.124 \| good	0.792 \| good	7.077 \| good	0.261 \| good
2025-06-06T14:00:00.000Z	64 \| moderate	16.1 \| fine	28.419 \| good	37.535 \| good	0.618 \| good	10.473 \| good	0.261 \| good
2025-06-06T15:00:00.000Z	62 \| moderate	14.795 \| fine	46.51 \| good	39.53 \| good	0.509 \| good	6.572 \| good	0.261 \| good
2025-06-06T16:00:00.000Z	58 \| moderate	13.409 \| fine	39.108 \| good	49.228 \| good	0.387 \| good	6.524 \| good	0.261 \| good
2025-06-06T17:00:00.000Z	58 \| moderate	13.374 \| fine	34.505 \| good	42.8 \| good	0.323 \| good	5.746 \| good	0.247 \| good
2025-06-06T18:00:00.000Z	58 \| moderate	12.903 \| fine	46.933 \| good	48.968 \| good	0.493 \| good	6.611 \| good	0.261 \| good
2025-06-06T19:00:00.000Z	64 \| moderate	16.187 \| fine	64.138 \| fine	59.431 \| fine	0.406 \| good	7.835 \| good	0.35 \| good
2025-06-06T20:00:00.000Z	64 \| moderate	16.217 \| fine	49.475 \| good	54.772 \| good	0.565 \| good	6.033 \| good	0.292 \| good
2025-06-06T21:00:00.000Z	64 \| moderate	15.207 \| fine	43.595 \| good	59.065 \| fine	0.756 \| good	6.91 \| good	0.333 \| good
2025-06-06T22:00:00.000Z	66 \| moderate	16.822 \| fine	52.166 \| good	39.996 \| good	0.545 \| good	9.271 \| good	0.321 \| good
2025-06-06T23:00:00.000Z	66 \| moderate	16.59 \| fine	50.57 \| good	56.196 \| fine	0.89 \| good	8.726 \| good	0.322 \| good
2025-06-07T00:00:00.000Z	64 \| moderate	16.49 \| fine	54.937 \| good	35.324 \| good	0.804 \| good	7.294 \| good	0.336 \| good
2025-06-07T01:00:00.000Z	62 \| moderate	15.404 \| fine	26.802 \| good	30.542 \| good	0.352 \| good	5.402 \| good	0.306 \| good
2025-06-07T02:00:00.000Z	60 \| moderate	13.649 \| fine	47.277 \| good	30.717 \| good	0.721 \| good	5.381 \| good	0.304 \| good
2025-06-07T03:00:00.000Z	60 \| moderate	13.783 \| fine	58.012 \| fine	28.968 \| good	0.814 \| good	6.988 \| good	0.26 \| good
2025-06-07T04:00:00.000Z	66 \| moderate	17.058 \| fine	75.927 \| fine	30.902 \| good	0.822 \| good	4.553 \| good	0.225 \| good
2025-06-07T05:00:00.000Z	38 \| good	6.532 \| good	34.928 \| good	32.245 \| good	1.013 \| good	5.295 \| good	0.152 \| good
2025-06-07T06:00:00.000Z	49 \| good	8.8 \| good	40.937 \| good	35.998 \| good	0.994 \| good	6.791 \| good	0.152 \| good
2025-06-07T07:00:00.000Z	33 \| good	6.045 \| good	27.514 \| good	26.135 \| good	0.698 \| good	4.601 \| good	0.206 \| good
2025-06-07T08:00:00.000Z	66 \| moderate	16.735 \| fine	41.808 \| good	28.211 \| good	0.752 \| good	4.923 \| good	0.206 \| good
2025-06-07T09:00:00.000Z	64 \| moderate	16.013 \| fine	33.606 \| good	22.251 \| good	0.775 \| good	4.805 \| good	0.26 \| good
2025-06-07T10:00:00.000Z	62 \| moderate	14.515 \| fine	35.165 \| good	13.678 \| good	0.785 \| good	6.696 \| good	0.232 \| good
2025-06-07T11:00:00.000Z	56 \| moderate	12.315 \| fine	23.203 \| good	16.269 \| good	0.754 \| good	4.218 \| good	0.2 \| good
2025-06-07T12:00:00.000Z	56 \| moderate	12.37 \| fine	41.541 \| good	19.948 \| good	0.804 \| good	4.053 \| good	0.2 \| good
2025-06-07T13:00:00.000Z	54 \| moderate	11.28 \| good	33.113 \| good	17.733 \| good	0.801 \| good	5.094 \| good	0.272 \| good
2025-06-07T14:00:00.000Z	54 \| moderate	11.243 \| good	45.631 \| good	23.076 \| good	0.852 \| good	5.369 \| good	0.272 \| good
2025-06-07T15:00:00.000Z	52 \| moderate	10.125 \| good	26.816 \| good	19.26 \| good	0.832 \| good	5.569 \| good	0.303 \| good
2025-06-07T16:00:00.000Z	49 \| good	9.369 \| good	31.632 \| good	20.858 \| good	0.827 \| good	7.396 \| good	0.258 \| good
2025-06-07T17:00:00.000Z	52 \| moderate	9.64 \| good	38.771 \| good	25.77 \| good	0.958 \| good	6.744 \| good	0.258 \| good
2025-06-07T18:00:00.000Z	27 \| good	4.709 \| good	26.571 \| good	26.577 \| good	0.931 \| good	3.453 \| good	0.244 \| good
2025-06-07T13:00:00.000Z	56 \| moderate	12.37 \| fine	41.541 \| good	19.948 \| good	0.804 \| good	4.053 \| good	0.2 \| good
2025-06-07T14:00:00.000Z	52 \| moderate	10.326 \| good	45.846 \| good	35.132 \| good	0.227 \| good	2.247 \| good	0.147 \| good
2025-06-07T15:00:00.000Z	54 \| moderate	10.91 \| good	48.202 \| good	38.119 \| good	0.253 \| good	2.475 \| good	0.149 \| good
2025-06-07T16:00:00.000Z	56 \| moderate	11.722 \| good	51.803 \| good	38.198 \| good	0.325 \| good	1.618 \| good	0.147 \| good
2025-06-07T17:00:00.000Z	56 \| moderate	11.932 \| good	52.696 \| good	37.438 \| good	0.343 \| good	1.841 \| good	0.147 \| good
2025-06-07T18:00:00.000Z	56 \| moderate	12.296 \| fine	55.184 \| fine	36.694 \| good	0.361 \| good	2.063 \| good	0.147 \| good
2025-06-07T19:00:00.000Z	56 \| moderate	11.508 \| good	51.017 \| good	41.1 \| good	0.309 \| good	1.834 \| good	0.176 \| good
2025-06-07T20:00:00.000Z	54 \| moderate	11.13 \| good	49.235 \| good	43.516 \| good	0.341 \| good	1.961 \| good	0.172 \| good
2025-06-07T21:00:00.000Z	54 \| moderate	11.285 \| good	50.375 \| good	41.475 \| good	0.373 \| good	2.087 \| good	0.168 \| good
2025-06-07T22:00:00.000Z	56 \| moderate	12.03 \| good	54.348 \| good	40.734 \| good	0.221 \| good	4.264 \| good	0.225 \| good
2025-06-07T23:00:00.000Z	56 \| moderate	12.36 \| fine	55.921 \| fine	39.566 \| good	0.253 \| good	4.998 \| good	0.224 \| good
2025-06-08T00:00:00.000Z	52 \| moderate	9.554 \| good	42.036 \| good	38.514 \| good	0.286 \| good	5.731 \| good	0.223 \| good
2025-06-08T01:00:00.000Z	49 \| good	9.482 \| good	42.066 \| good	34.511 \| good	0.274 \| good	4.323 \| good	0.242 \| good
2025-06-08T02:00:00.000Z	52 \| moderate	9.798 \| good	43.404 \| good	31.173 \| good	0.333 \| good	5.392 \| good	0.245 \| good
2025-06-08T03:00:00.000Z	52 \| moderate	10.167 \| good	44.993 \| good	28.037 \| good	0.392 \| good	6.462 \| good	0.247 \| good
2025-06-08T04:00:00.000Z	56 \| moderate	12.05 \| good	54.213 \| good	27.282 \| good	0.372 \| good	3.496 \| good	0.233 \| good
2025-06-08T05:00:00.000Z	60 \| moderate	13.607 \| fine	61.107 \| fine	25.047 \| good	0.469 \| good	4.506 \| good	0.231 \| good
2025-06-08T06:00:00.000Z	58 \| moderate	13.131 \| fine	58.783 \| fine	24.982 \| good	0.566 \| good	5.516 \| good	0.23 \| good
2025-06-08T07:00:00.000Z	54 \| moderate	10.974 \| good	48.548 \| good	23.445 \| good	0.428 \| good	2.772 \| good	0.238 \| good
2025-06-08T08:00:00.000Z	54 \| moderate	11.16 \| good	49.197 \| good	22.137 \| good	0.509 \| good	3.43 \| good	0.23 \| good
2025-06-08T09:00:00.000Z	60 \| moderate	14.065 \| fine	63.265 \| fine	17.674 \| good	0.59 \| good	4.088 \| good	0.221 \| good
2025-06-08T10:00:00.000Z	62 \| moderate	14.84 \| fine	65.948 \| fine	18.489 \| good	0.459 \| good	2.478 \| good	0.253 \| good
2025-06-08T11:00:00.000Z	64 \| moderate	16.277 \| fine	71.812 \| fine	20.611 \| good	0.542 \| good	2.882 \| good	0.245 \| good
2025-06-08T12:00:00.000Z	66 \| moderate	16.817 \| fine	75.154 \| fine	26.448 \| good	0.625 \| good	3.287 \| good	0.236 \| good
2025-06-08T13:00:00.000Z	62 \| moderate	14.671 \| fine	65.48 \| fine	32.54 \| good	0.494 \| good	1.876 \| good	0.254 \| good
2025-06-08T14:00:00.000Z	56 \| moderate	12.247 \| fine	54.971 \| good	34.718 \| good	0.515 \| good	2.101 \| good	0.254 \| good
2025-06-08T15:00:00.000Z	54 \| moderate	11.121 \| good	49.252 \| good	37.011 \| good	0.536 \| good	2.326 \| good	0.255 \| good
2025-06-08T16:00:00.000Z	54 \| moderate	10.611 \| good	47.328 \| good	41.833 \| good	0.27 \| good	1.139 \| good	0.27 \| good
2025-06-08T17:00:00.000Z	52 \| moderate	9.956 \| good	44.336 \| good	45.401 \| good	0.276 \| good	1.247 \| good	0.27 \| good
2025-06-08T18:00:00.000Z	49 \| good	8.741 \| good	38.467 \| good	44.369 \| good	0.281 \| good	1.355 \| good	0.271 \| good
2025-06-08T19:00:00.000Z	49 \| good	9.169 \| good	41.165 \| good	44.228 \| good	0.265 \| good	1.699 \| good	0.27 \| good
2025-06-08T20:00:00.000Z	56 \| moderate	11.939 \| good	53.108 \| good	43.065 \| good	0.284 \| good	1.881 \| good	0.268 \| good
2025-06-08T21:00:00.000Z	62 \| moderate	14.642 \| fine	65.325 \| fine	41.968 \| good	0.303 \| good	2.062 \| good	0.266 \| good
2025-06-08T22:00:00.000Z	64 \| moderate	15.929 \| fine	71.048 \| fine	37.368 \| good	0.487 \| good	4.505 \| good	0.28 \| good
2025-06-08T23:00:00.000Z	64 \| moderate	15.818 \| fine	70.785 \| fine	33.136 \| good	0.528 \| good	4.87 \| good	0.277 \| good
2025-06-09T00:00:00.000Z	58 \| moderate	12.729 \| fine	57.098 \| fine	29.336 \| good	0.569 \| good	5.235 \| good	0.274 \| good
2025-06-09T01:00:00.000Z	56 \| moderate	11.991 \| good	53.855 \| good	29.005 \| good	0.768 \| good	6.88 \| good	0.286 \| good
2025-06-09T02:00:00.000Z	56 \| moderate	11.602 \| good	51.413 \| good	29.342 \| good	0.838 \| good	7.723 \| good	0.289 \| good
2025-06-09T03:00:00.000Z	49 \| good	9.004 \| good	39.566 \| good	31.832 \| good	0.909 \| good	8.566 \| good	0.292 \| good
2025-06-09T04:00:00.000Z	44 \| good	8.336 \| good	36.722 \| good	34.796 \| good	0.845 \| good	6.365 \| good	0.283 \| good
2025-06-09T05:00:00.000Z	49 \| good	8.732 \| good	38.015 \| good	32.776 \| good	0.908 \| good	6.746 \| good	0.284 \| good
2025-06-09T06:00:00.000Z	60 \| moderate	13.824 \| fine	14.339 \| good	34.264 \| good	0.972 \| good	7.092 \| good	0.285 \| good
2025-06-09T07:00:00.000Z	49 \| good	8.789 \| good	38.334 \| good	32.785 \| good	0.839 \| good	4.623 \| good	0.272 \| good
2025-06-09T08:00:00.000Z	49 \| good	8.725 \| good	38.241 \| good	31.248 \| good	0.886 \| good	4.883 \| good	0.272 \| good
2025-06-09T09:00:00.000Z	38 \| good	7.419 \| good	32.449 \| good	27.14 \| good	0.934 \| good	5.144 \| good	0.272 \| good
2025-06-09T10:00:00.000Z	38 \| good	7.275 \| good	32.171 \| good	25.042 \| good	0.755 \| good	2.624 \| good	0.269 \| good
2025-06-09T11:00:00.000Z	44 \| good	8.487 \| good	37.169 \| good	25.55 \| good	0.802 \| good	2.919 \| good	0.271 \| good
2025-06-09T12:00:00.000Z	79 \| moderate	23.957 \| fine	25.028 \| good	38.015 \| good	0.842 \| good	3.178 \| good	0.273 \| good
2025-06-09T13:00:00.000Z	77 \| moderate	22.98 \| fine	24.079 \| good	44.364 \| good	0.357 \| good	2.04 \| good	0.206 \| good

Live air quality index in Westborough, Massachusetts today

Major air pollutants in Westborough, Massachusetts

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Westborough, Massachusetts air quality forecast and history

Empower business decisions with accurate air quality data

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

Air quality in nearby cities

Northborough, Massachusetts

Southborough, Massachusetts

Hopkinton, Massachusetts

Grafton, Massachusetts

Shrewsbury, Massachusetts

Marlborough, Massachusetts

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Frequently asked questions

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

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

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

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

Which pollutant is found most often in Westborough, Massachusetts?

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

What are the current PM10 levels at Westborough, Massachusetts?

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

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

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

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

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

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

What are the current PM₁₀ levels at Westborough, Massachusetts?

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

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

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