What is the current concentration of PM10 in Holyoke, Massachusetts?

The current PM10 concentration at Holyoke, Massachusetts is 14.991 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Holyoke, Massachusetts?

The current sulfur dioxide (SO2) concentration at Holyoke, Massachusetts is 0.149 ppb.

What is the current concentration of ozone (O3) in Holyoke, Massachusetts?

The current ozone (O3) concentration at Holyoke, Massachusetts is 38.742 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Holyoke, Massachusetts?

The current nitrogen dioxide (NO2) concentration at Holyoke, Massachusetts is 3.324 ppb.

Holyoke, Massachusetts live air quality index now

Q: What is the current concentration of PM2.5 in Holyoke, Massachusetts?

The current PM2.5 concentration at Holyoke, Massachusetts is 3.528 μg/m3.

Stay updated with real-time air quality in Holyoke, 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

Holyoke, Massachusetts

Last updated: ... (Local time)

Major air pollutants in Holyoke, Massachusetts

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

3.50 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

15.02 μg/m³

155

255

425

605+

Ozone (O₃)

41.53 ppb

201

201+

Sulfur Dioxide (SO₂)

0.12 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

5.72 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.30 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Holyoke, Massachusetts

Get Live Pollen Counts

Holyoke, Massachusetts

Scroll To Air Quality Map

Track live Holyoke, Massachusetts air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-08-07T02:00:00.000Z	44 \| good	8.12 \| good	34.321 \| good	40.135 \| good	0.179 \| good	4.455 \| good	0.22 \| good
2026-08-07T03:00:00.000Z	33 \| good	6.279 \| good	28.046 \| good	29.998 \| good	0.224 \| good	5.839 \| good	0.238 \| good
2026-08-07T04:00:00.000Z	49 \| good	9.265 \| good	39.68 \| good	42.482 \| good	0.254 \| good	5.675 \| good	0.234 \| good
2026-08-07T05:00:00.000Z	52 \| moderate	9.736 \| good	41.696 \| good	38.46 \| good	0.425 \| good	8.001 \| good	0.2 \| good
2026-08-07T06:00:00.000Z	52 \| moderate	9.733 \| good	41.805 \| good	37.284 \| good	0.691 \| good	7.983 \| good	0.21 \| good
2026-08-07T07:00:00.000Z	49 \| good	9.146 \| good	39.997 \| good	32.549 \| good	0.631 \| good	7.991 \| good	0.232 \| good
2026-08-07T08:00:00.000Z	44 \| good	8.12 \| good	35.086 \| good	28.12 \| good	0.434 \| good	11.607 \| good	0.183 \| good
2026-08-07T09:00:00.000Z	33 \| good	6.492 \| good	27.911 \| good	25.804 \| good	0.508 \| good	5.385 \| good	0.2 \| good
2026-08-07T10:00:00.000Z	33 \| good	6.376 \| good	27.813 \| good	25.338 \| good	0.137 \| good	6.738 \| good	0.234 \| good
2026-08-07T11:00:00.000Z	33 \| good	6.144 \| good	26.98 \| good	14.41 \| good	0.451 \| good	6.692 \| good	0.249 \| good
2026-08-07T12:00:00.000Z	33 \| good	6.135 \| good	27.223 \| good	11.505 \| good	0.448 \| good	6.796 \| good	0.249 \| good
2026-08-07T13:00:00.000Z	33 \| good	6.041 \| good	26.13 \| good	12.193 \| good	0.581 \| good	4.345 \| good	0.236 \| good
2026-08-07T14:00:00.000Z	27 \| good	5.176 \| good	21.902 \| good	19.909 \| good	0.543 \| good	1.271 \| good	0.186 \| good
2026-08-07T15:00:00.000Z	27 \| good	5.404 \| good	22.554 \| good	25.752 \| good	0.475 \| good	1.077 \| good	0.185 \| good
2026-08-07T16:00:00.000Z	33 \| good	5.749 \| good	24.59 \| good	33.856 \| good	0.164 \| good	1.367 \| good	0.168 \| good
2026-08-07T17:00:00.000Z	36 \| good	5.801 \| good	24.45 \| good	38.897 \| good	0.134 \| good	1.074 \| good	0.218 \| good
2026-08-07T18:00:00.000Z	38 \| good	5.855 \| good	24.689 \| good	40.59 \| good	0.117 \| good	1.106 \| good	0.218 \| good
2026-08-07T19:00:00.000Z	42 \| good	5.952 \| good	24.817 \| good	44.67 \| good	0.116 \| good	1.134 \| good	0.218 \| good
2026-08-07T20:00:00.000Z	44 \| good	6.037 \| good	26.376 \| good	46.88 \| good	0.115 \| good	1.315 \| good	0.249 \| good
2026-08-07T21:00:00.000Z	42 \| good	6.097 \| good	26.338 \| good	45.035 \| good	0.197 \| good	1.159 \| good	0.215 \| good
2026-08-07T22:00:00.000Z	41 \| good	6.088 \| good	26.205 \| good	44.496 \| good	0.116 \| good	1.371 \| good	0.266 \| good
2026-08-07T23:00:00.000Z	42 \| good	6.093 \| good	26.628 \| good	45.174 \| good	0.142 \| good	2.341 \| good	0.267 \| good
2026-08-08T00:00:00.000Z	41 \| good	6.121 \| good	26.361 \| good	43.765 \| good	0.172 \| good	2.617 \| good	0.306 \| good
2026-08-08T01:00:00.000Z	36 \| good	6.149 \| good	26.572 \| good	39.456 \| good	0.15 \| good	5.244 \| good	0.29 \| good
2026-08-08T02:00:00.000Z	33 \| good	5.848 \| good	24.989 \| good	34.392 \| good	0.134 \| good	4.084 \| good	0.272 \| good
2026-08-08T03:00:00.000Z	54 \| moderate	10.723 \| good	47.28 \| good	39.742 \| good	0.227 \| good	7.397 \| good	0.266 \| good
2026-08-08T04:00:00.000Z	37 \| good	3.504 \| good	14.848 \| good	39.582 \| good	0.521 \| good	4.116 \| good	0.219 \| good
2026-08-08T05:00:00.000Z	34 \| good	3.299 \| good	12.935 \| good	37.353 \| good	0.291 \| good	4.746 \| good	0.2 \| good
2026-08-08T06:00:00.000Z	36 \| good	3.308 \| good	13.184 \| good	38.696 \| good	0.291 \| good	4.745 \| good	0.21 \| good
2026-08-08T07:00:00.000Z	31 \| good	3.369 \| good	14.611 \| good	33.033 \| good	0.676 \| good	5.071 \| good	0.194 \| good
2026-08-08T08:00:00.000Z	31 \| good	3.524 \| good	15.285 \| good	32.696 \| good	0.554 \| good	5.067 \| good	0.199 \| good
2026-08-08T09:00:00.000Z	28 \| good	4.57 \| good	19.659 \| good	30.45 \| good	0.191 \| good	4.008 \| good	0.199 \| good
2026-08-08T10:00:00.000Z	31 \| good	4.714 \| good	20.485 \| good	32.886 \| good	0.518 \| good	4.136 \| good	0.2 \| good
2026-08-08T11:00:00.000Z	29 \| good	4.804 \| good	20.581 \| good	30.75 \| good	0.257 \| good	3.802 \| good	0.234 \| good
2026-08-08T12:00:00.000Z	28 \| good	4.984 \| good	20.845 \| good	30.057 \| good	0.469 \| good	4.009 \| good	0.234 \| good
2026-08-08T13:00:00.000Z	27 \| good	4.97 \| good	20.836 \| good	27.31 \| good	0.467 \| good	3.944 \| good	0.232 \| good
2026-08-08T14:00:00.000Z	27 \| good	5.487 \| good	22.792 \| good	26.375 \| good	0.198 \| good	2.119 \| good	0.284 \| good
2026-08-08T15:00:00.000Z	33 \| good	5.698 \| good	23.807 \| good	28.493 \| good	0.484 \| good	1.971 \| good	0.265 \| good
2026-08-08T16:00:00.000Z	33 \| good	5.961 \| good	26.197 \| good	32.386 \| good	0.153 \| good	1.947 \| good	0.298 \| good
2026-08-08T17:00:00.000Z	33 \| good	6.209 \| good	27.049 \| good	32.859 \| good	0.135 \| good	1.928 \| good	0.266 \| good
2026-08-08T18:00:00.000Z	35 \| good	6.16 \| good	26.724 \| good	38.413 \| good	0.186 \| good	1.096 \| good	0.232 \| good
2026-08-08T19:00:00.000Z	33 \| good	5.974 \| good	26.019 \| good	33.572 \| good	0.119 \| good	1.411 \| good	0.265 \| good
2026-08-08T20:00:00.000Z	38 \| good	5.701 \| good	23.763 \| good	40.743 \| good	0.503 \| good	1.371 \| good	0.266 \| good
2026-08-08T21:00:00.000Z	38 \| good	5.528 \| good	22.669 \| good	41.392 \| good	0.174 \| good	1.366 \| good	0.251 \| good
2026-08-08T22:00:00.000Z	35 \| good	5.391 \| good	22.715 \| good	38.22 \| good	0.136 \| good	1.286 \| good	0.251 \| good
2026-08-08T23:00:00.000Z	37 \| good	3.873 \| good	16.331 \| good	39.669 \| good	0.248 \| good	1.543 \| good	0.154 \| good
2026-08-09T00:00:00.000Z	36 \| good	3.451 \| good	14.492 \| good	38.712 \| good	0.161 \| good	2.722 \| good	0.168 \| good
2026-08-09T01:00:00.000Z	39 \| good	3.496 \| good	15.021 \| good	41.535 \| good	0.116 \| good	5.721 \| good	0.3 \| good
2026-08-09T02:00:00.000Z	44 \| good	7.606 \| good	33.442 \| good	36.641 \| good	0.195 \| good	3.543 \| good	0.204 \| good
2026-08-09T03:00:00.000Z	44 \| good	7.607 \| good	33.518 \| good	30.513 \| good	0.205 \| good	4.274 \| good	0.208 \| good
2026-08-09T04:00:00.000Z	54 \| moderate	10.51 \| good	46.536 \| good	25.453 \| good	0.213 \| good	4.858 \| good	0.213 \| good
2026-08-09T05:00:00.000Z	52 \| moderate	9.606 \| good	42.757 \| good	24.721 \| good	0.218 \| good	4.723 \| good	0.214 \| good
2026-08-09T06:00:00.000Z	52 \| moderate	9.864 \| good	43.734 \| good	20.101 \| good	0.228 \| good	4.538 \| good	0.214 \| good
2026-08-09T07:00:00.000Z	49 \| good	9.293 \| good	41.79 \| good	17.386 \| good	0.241 \| good	4.38 \| good	0.213 \| good
2026-08-09T08:00:00.000Z	44 \| good	8.027 \| good	35.203 \| good	17.776 \| good	0.253 \| good	4.38 \| good	0.215 \| good
2026-08-09T09:00:00.000Z	38 \| good	7.471 \| good	32.492 \| good	16.832 \| good	0.265 \| good	4.436 \| good	0.217 \| good
2026-08-09T10:00:00.000Z	44 \| good	7.852 \| good	34.42 \| good	17.319 \| good	0.278 \| good	4.324 \| good	0.22 \| good
2026-08-09T11:00:00.000Z	38 \| good	7.492 \| good	32.746 \| good	19.708 \| good	0.271 \| good	3.704 \| good	0.225 \| good
2026-08-09T12:00:00.000Z	44 \| good	7.693 \| good	33.744 \| good	28.313 \| good	0.272 \| good	1.961 \| good	0.223 \| good
2026-08-09T13:00:00.000Z	52 \| moderate	9.536 \| good	42.344 \| good	37.89 \| good	0.329 \| good	0.971 \| good	0.214 \| good
2026-08-09T14:00:00.000Z	52 \| moderate	10.476 \| good	46.147 \| good	42.599 \| good	0.333 \| good	0.675 \| good	0.208 \| good
2026-08-09T15:00:00.000Z	49 \| good	9.119 \| good	41.085 \| good	44.471 \| good	0.324 \| good	0.538 \| good	0.206 \| good
2026-08-09T16:00:00.000Z	49 \| good	8.888 \| good	38.931 \| good	43.625 \| good	0.32 \| good	0.451 \| good	0.204 \| good
2026-08-09T17:00:00.000Z	39 \| good	6.652 \| good	29.829 \| good	41.801 \| good	0.32 \| good	0.399 \| good	0.201 \| good
2026-08-09T18:00:00.000Z	37 \| good	4.981 \| good	21.275 \| good	40.05 \| good	0.318 \| good	0.37 \| good	0.198 \| good
2026-08-09T19:00:00.000Z	35 \| good	4.222 \| good	18.389 \| good	38.009 \| good	0.317 \| good	0.371 \| good	0.195 \| good
2026-08-09T20:00:00.000Z	35 \| good	3.78 \| good	16.69 \| good	37.752 \| good	0.304 \| good	0.397 \| good	0.191 \| good
2026-08-09T21:00:00.000Z	33 \| good	3.587 \| good	15.629 \| good	35.822 \| good	0.284 \| good	0.475 \| good	0.187 \| good
2026-08-09T22:00:00.000Z	32 \| good	3.633 \| good	16.117 \| good	34.754 \| good	0.252 \| good	0.809 \| good	0.185 \| good
2026-08-09T23:00:00.000Z	29 \| good	4.315 \| good	19.085 \| good	31.253 \| good	0.223 \| good	1.39 \| good	0.187 \| good
2026-08-10T00:00:00.000Z	28 \| good	4.573 \| good	19.545 \| good	29.94 \| good	0.213 \| good	2.291 \| good	0.189 \| good
2026-08-10T01:00:00.000Z	27 \| good	4.574 \| good	19.63 \| good	27.127 \| good	0.208 \| good	3.209 \| good	0.191 \| good
2026-08-10T02:00:00.000Z	24 \| good	3.821 \| good	16.555 \| good	25.746 \| good	0.196 \| good	3.523 \| good	0.187 \| good
2026-08-10T03:00:00.000Z	33 \| good	5.881 \| good	26.098 \| good	20.612 \| good	0.19 \| good	4.226 \| good	0.188 \| good
2026-08-10T04:00:00.000Z	52 \| moderate	9.716 \| good	43.189 \| good	19.437 \| good	0.184 \| good	4.789 \| good	0.19 \| good
2026-08-10T05:00:00.000Z	38 \| good	7.476 \| good	32.968 \| good	15.36 \| good	0.174 \| good	4.945 \| good	0.188 \| good
2026-08-10T06:00:00.000Z	33 \| good	6.256 \| good	27.906 \| good	11.844 \| good	0.17 \| good	5.412 \| good	0.188 \| good
2026-08-10T07:00:00.000Z	38 \| good	6.556 \| good	29.138 \| good	9.588 \| good	0.168 \| good	6.193 \| good	0.192 \| good
2026-08-10T08:00:00.000Z	27 \| good	5.41 \| good	23.145 \| good	8.33 \| good	0.169 \| good	7.145 \| good	0.197 \| good
2026-08-10T09:00:00.000Z	22 \| good	4.486 \| good	19.692 \| good	5.333 \| good	0.156 \| good	8.33 \| good	0.204 \| good
2026-08-10T10:00:00.000Z	27 \| good	4.51 \| good	19.335 \| good	5.572 \| good	0.159 \| good	9.177 \| good	0.212 \| good
2026-08-10T11:00:00.000Z	22 \| good	3.776 \| good	16.422 \| good	8.533 \| good	0.165 \| good	8.736 \| good	0.224 \| good
2026-08-10T12:00:00.000Z	27 \| good	4.584 \| good	19.544 \| good	12.659 \| good	0.152 \| good	4.437 \| good	0.21 \| good
2026-08-10T13:00:00.000Z	38 \| good	6.551 \| good	29.255 \| good	18.363 \| good	0.163 \| good	1.96 \| good	0.178 \| good
2026-08-10T14:00:00.000Z	38 \| good	6.553 \| good	28.886 \| good	27.101 \| good	0.173 \| good	1.108 \| good	0.155 \| good
2026-08-10T15:00:00.000Z	33 \| good	5.761 \| good	24.974 \| good	34.62 \| good	0.192 \| good	0.736 \| good	0.147 \| good
2026-08-10T16:00:00.000Z	32 \| good	5.073 \| good	21.977 \| good	35.448 \| good	0.213 \| good	0.567 \| good	0.152 \| good
2026-08-10T17:00:00.000Z	35 \| good	5.551 \| good	23.684 \| good	37.737 \| good	0.237 \| good	0.47 \| good	0.16 \| good
2026-08-10T18:00:00.000Z	40 \| good	6.424 \| good	28.379 \| good	43.148 \| good	0.263 \| good	0.47 \| good	0.167 \| good
2026-08-10T19:00:00.000Z	41 \| good	6.054 \| good	27.199 \| good	44.285 \| good	0.308 \| good	0.519 \| good	0.175 \| good
2026-08-10T20:00:00.000Z	34 \| good	6.212 \| good	27.583 \| good	37.269 \| good	0.381 \| good	0.625 \| good	0.186 \| good
2026-08-10T21:00:00.000Z	33 \| good	6.007 \| good	26.334 \| good	32.546 \| good	0.446 \| good	0.852 \| good	0.199 \| good
2026-08-10T22:00:00.000Z	33 \| good	5.839 \| good	25.178 \| good	30.589 \| good	0.442 \| good	1.4 \| good	0.212 \| good
2026-08-10T23:00:00.000Z	38 \| good	6.959 \| good	30.929 \| good	25.017 \| good	0.423 \| good	2.015 \| good	0.223 \| good
2026-08-11T00:00:00.000Z	56 \| moderate	11.843 \| good	12.094 \| good	54.493 \| good	0.455 \| good	2.071 \| good	0.226 \| good
2026-08-11T01:00:00.000Z	35 \| good	6.256 \| good	27.684 \| good	38.05 \| good	0.442 \| good	2.374 \| good	0.228 \| good

Holyoke

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Holyoke, Massachusetts air quality map: Track AQI near you

0.18ppm

How accurate is Massachusetts, USA air quality data?

Air quality data and pollutant measurements for Massachusetts, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.

Source: Ambee Data Sources

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Frequently asked questions

How often is the air quality data for Holyoke, Massachusetts updated?

The air quality for Holyoke, Massachusetts is updated every hour.

When was the worst air quality at Holyoke, Massachusetts in the last 24 hrs?

The worst air quality in Holyoke, Massachusetts in the last 24 hours was observed at 03:00:00 on 2026-08-08.

When was the best air quality at Holyoke, Massachusetts in the last 24 hrs?

In the last 24 hrs, the best air quality in Holyoke, Massachusetts was observed at 02:00:00 on 2026-08-08.

What is the current air quality in Holyoke, Massachusetts?

The current air quality in Holyoke, Massachusetts is 36, categorized as Good based on real-time data.

What pollutant is the most common in Holyoke, Massachusetts?

The most common pollutant in Holyoke, Massachusetts is O3.

What should I do if the air quality in Holyoke, Massachusetts is poor?

If the air quality in Holyoke, Massachusetts is poor, consider staying indoors and wearing a mask to protect yourself.

What is the current concentration of PM_2.5 in Holyoke, Massachusetts?

The current PM_2.5 concentration at Holyoke, Massachusetts is 3.528 μg/m³.

What is the current concentration of PM₁₀ in Holyoke, Massachusetts?

The current PM₁₀ concentration at Holyoke, Massachusetts is 14.991 μg/m³.

What is the current concentration of carbon monoxide (CO) in Holyoke, Massachusetts?

The current carbon monoxide (CO) concentration at Holyoke, Massachusetts is 0.167 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Holyoke, Massachusetts?

The current sulfur dioxide (SO₂) concentration at Holyoke, Massachusetts is 0.149 ppb.

What is the current concentration of ozone (O₃) in Holyoke, Massachusetts?

The current ozone (O₃) concentration at Holyoke, Massachusetts is 38.742 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Holyoke, Massachusetts?

The current nitrogen dioxide (NO₂) concentration at Holyoke, Massachusetts is 3.324 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-08-07T02:00:00.000Z	44 \| good	8.12 \| good	34.321 \| good	40.135 \| good	0.179 \| good	4.455 \| good	0.22 \| good
2026-08-07T03:00:00.000Z	33 \| good	6.279 \| good	28.046 \| good	29.998 \| good	0.224 \| good	5.839 \| good	0.238 \| good
2026-08-07T04:00:00.000Z	49 \| good	9.265 \| good	39.68 \| good	42.482 \| good	0.254 \| good	5.675 \| good	0.234 \| good
2026-08-07T05:00:00.000Z	52 \| moderate	9.736 \| good	41.696 \| good	38.46 \| good	0.425 \| good	8.001 \| good	0.2 \| good
2026-08-07T06:00:00.000Z	52 \| moderate	9.733 \| good	41.805 \| good	37.284 \| good	0.691 \| good	7.983 \| good	0.21 \| good
2026-08-07T07:00:00.000Z	49 \| good	9.146 \| good	39.997 \| good	32.549 \| good	0.631 \| good	7.991 \| good	0.232 \| good
2026-08-07T08:00:00.000Z	44 \| good	8.12 \| good	35.086 \| good	28.12 \| good	0.434 \| good	11.607 \| good	0.183 \| good
2026-08-07T09:00:00.000Z	33 \| good	6.492 \| good	27.911 \| good	25.804 \| good	0.508 \| good	5.385 \| good	0.2 \| good
2026-08-07T10:00:00.000Z	33 \| good	6.376 \| good	27.813 \| good	25.338 \| good	0.137 \| good	6.738 \| good	0.234 \| good
2026-08-07T11:00:00.000Z	33 \| good	6.144 \| good	26.98 \| good	14.41 \| good	0.451 \| good	6.692 \| good	0.249 \| good
2026-08-07T12:00:00.000Z	33 \| good	6.135 \| good	27.223 \| good	11.505 \| good	0.448 \| good	6.796 \| good	0.249 \| good
2026-08-07T13:00:00.000Z	33 \| good	6.041 \| good	26.13 \| good	12.193 \| good	0.581 \| good	4.345 \| good	0.236 \| good
2026-08-07T14:00:00.000Z	27 \| good	5.176 \| good	21.902 \| good	19.909 \| good	0.543 \| good	1.271 \| good	0.186 \| good
2026-08-07T15:00:00.000Z	27 \| good	5.404 \| good	22.554 \| good	25.752 \| good	0.475 \| good	1.077 \| good	0.185 \| good
2026-08-07T16:00:00.000Z	33 \| good	5.749 \| good	24.59 \| good	33.856 \| good	0.164 \| good	1.367 \| good	0.168 \| good
2026-08-07T17:00:00.000Z	36 \| good	5.801 \| good	24.45 \| good	38.897 \| good	0.134 \| good	1.074 \| good	0.218 \| good
2026-08-07T18:00:00.000Z	38 \| good	5.855 \| good	24.689 \| good	40.59 \| good	0.117 \| good	1.106 \| good	0.218 \| good
2026-08-07T19:00:00.000Z	42 \| good	5.952 \| good	24.817 \| good	44.67 \| good	0.116 \| good	1.134 \| good	0.218 \| good
2026-08-07T20:00:00.000Z	44 \| good	6.037 \| good	26.376 \| good	46.88 \| good	0.115 \| good	1.315 \| good	0.249 \| good
2026-08-07T21:00:00.000Z	42 \| good	6.097 \| good	26.338 \| good	45.035 \| good	0.197 \| good	1.159 \| good	0.215 \| good
2026-08-07T22:00:00.000Z	41 \| good	6.088 \| good	26.205 \| good	44.496 \| good	0.116 \| good	1.371 \| good	0.266 \| good
2026-08-07T23:00:00.000Z	42 \| good	6.093 \| good	26.628 \| good	45.174 \| good	0.142 \| good	2.341 \| good	0.267 \| good
2026-08-08T00:00:00.000Z	41 \| good	6.121 \| good	26.361 \| good	43.765 \| good	0.172 \| good	2.617 \| good	0.306 \| good
2026-08-08T01:00:00.000Z	36 \| good	6.149 \| good	26.572 \| good	39.456 \| good	0.15 \| good	5.244 \| good	0.29 \| good
2026-08-08T02:00:00.000Z	33 \| good	5.848 \| good	24.989 \| good	34.392 \| good	0.134 \| good	4.084 \| good	0.272 \| good
2026-08-08T03:00:00.000Z	54 \| moderate	10.723 \| good	47.28 \| good	39.742 \| good	0.227 \| good	7.397 \| good	0.266 \| good
2026-08-08T04:00:00.000Z	37 \| good	3.504 \| good	14.848 \| good	39.582 \| good	0.521 \| good	4.116 \| good	0.219 \| good
2026-08-08T05:00:00.000Z	34 \| good	3.299 \| good	12.935 \| good	37.353 \| good	0.291 \| good	4.746 \| good	0.2 \| good
2026-08-08T06:00:00.000Z	36 \| good	3.308 \| good	13.184 \| good	38.696 \| good	0.291 \| good	4.745 \| good	0.21 \| good
2026-08-08T07:00:00.000Z	31 \| good	3.369 \| good	14.611 \| good	33.033 \| good	0.676 \| good	5.071 \| good	0.194 \| good
2026-08-08T08:00:00.000Z	31 \| good	3.524 \| good	15.285 \| good	32.696 \| good	0.554 \| good	5.067 \| good	0.199 \| good
2026-08-08T09:00:00.000Z	28 \| good	4.57 \| good	19.659 \| good	30.45 \| good	0.191 \| good	4.008 \| good	0.199 \| good
2026-08-08T10:00:00.000Z	31 \| good	4.714 \| good	20.485 \| good	32.886 \| good	0.518 \| good	4.136 \| good	0.2 \| good
2026-08-08T11:00:00.000Z	29 \| good	4.804 \| good	20.581 \| good	30.75 \| good	0.257 \| good	3.802 \| good	0.234 \| good
2026-08-08T12:00:00.000Z	28 \| good	4.984 \| good	20.845 \| good	30.057 \| good	0.469 \| good	4.009 \| good	0.234 \| good
2026-08-08T13:00:00.000Z	27 \| good	4.97 \| good	20.836 \| good	27.31 \| good	0.467 \| good	3.944 \| good	0.232 \| good
2026-08-08T14:00:00.000Z	27 \| good	5.487 \| good	22.792 \| good	26.375 \| good	0.198 \| good	2.119 \| good	0.284 \| good
2026-08-08T15:00:00.000Z	33 \| good	5.698 \| good	23.807 \| good	28.493 \| good	0.484 \| good	1.971 \| good	0.265 \| good
2026-08-08T16:00:00.000Z	33 \| good	5.961 \| good	26.197 \| good	32.386 \| good	0.153 \| good	1.947 \| good	0.298 \| good
2026-08-08T17:00:00.000Z	33 \| good	6.209 \| good	27.049 \| good	32.859 \| good	0.135 \| good	1.928 \| good	0.266 \| good
2026-08-08T18:00:00.000Z	35 \| good	6.16 \| good	26.724 \| good	38.413 \| good	0.186 \| good	1.096 \| good	0.232 \| good
2026-08-08T19:00:00.000Z	33 \| good	5.974 \| good	26.019 \| good	33.572 \| good	0.119 \| good	1.411 \| good	0.265 \| good
2026-08-08T20:00:00.000Z	38 \| good	5.701 \| good	23.763 \| good	40.743 \| good	0.503 \| good	1.371 \| good	0.266 \| good
2026-08-08T21:00:00.000Z	38 \| good	5.528 \| good	22.669 \| good	41.392 \| good	0.174 \| good	1.366 \| good	0.251 \| good
2026-08-08T22:00:00.000Z	35 \| good	5.391 \| good	22.715 \| good	38.22 \| good	0.136 \| good	1.286 \| good	0.251 \| good
2026-08-08T23:00:00.000Z	37 \| good	3.873 \| good	16.331 \| good	39.669 \| good	0.248 \| good	1.543 \| good	0.154 \| good
2026-08-09T00:00:00.000Z	36 \| good	3.451 \| good	14.492 \| good	38.712 \| good	0.161 \| good	2.722 \| good	0.168 \| good
2026-08-09T01:00:00.000Z	39 \| good	3.496 \| good	15.021 \| good	41.535 \| good	0.116 \| good	5.721 \| good	0.3 \| good
2026-08-09T02:00:00.000Z	44 \| good	7.606 \| good	33.442 \| good	36.641 \| good	0.195 \| good	3.543 \| good	0.204 \| good
2026-08-09T03:00:00.000Z	44 \| good	7.607 \| good	33.518 \| good	30.513 \| good	0.205 \| good	4.274 \| good	0.208 \| good
2026-08-09T04:00:00.000Z	54 \| moderate	10.51 \| good	46.536 \| good	25.453 \| good	0.213 \| good	4.858 \| good	0.213 \| good
2026-08-09T05:00:00.000Z	52 \| moderate	9.606 \| good	42.757 \| good	24.721 \| good	0.218 \| good	4.723 \| good	0.214 \| good
2026-08-09T06:00:00.000Z	52 \| moderate	9.864 \| good	43.734 \| good	20.101 \| good	0.228 \| good	4.538 \| good	0.214 \| good
2026-08-09T07:00:00.000Z	49 \| good	9.293 \| good	41.79 \| good	17.386 \| good	0.241 \| good	4.38 \| good	0.213 \| good
2026-08-09T08:00:00.000Z	44 \| good	8.027 \| good	35.203 \| good	17.776 \| good	0.253 \| good	4.38 \| good	0.215 \| good
2026-08-09T09:00:00.000Z	38 \| good	7.471 \| good	32.492 \| good	16.832 \| good	0.265 \| good	4.436 \| good	0.217 \| good
2026-08-09T10:00:00.000Z	44 \| good	7.852 \| good	34.42 \| good	17.319 \| good	0.278 \| good	4.324 \| good	0.22 \| good
2026-08-09T11:00:00.000Z	38 \| good	7.492 \| good	32.746 \| good	19.708 \| good	0.271 \| good	3.704 \| good	0.225 \| good
2026-08-09T12:00:00.000Z	44 \| good	7.693 \| good	33.744 \| good	28.313 \| good	0.272 \| good	1.961 \| good	0.223 \| good
2026-08-09T13:00:00.000Z	52 \| moderate	9.536 \| good	42.344 \| good	37.89 \| good	0.329 \| good	0.971 \| good	0.214 \| good
2026-08-09T14:00:00.000Z	52 \| moderate	10.476 \| good	46.147 \| good	42.599 \| good	0.333 \| good	0.675 \| good	0.208 \| good
2026-08-09T15:00:00.000Z	49 \| good	9.119 \| good	41.085 \| good	44.471 \| good	0.324 \| good	0.538 \| good	0.206 \| good
2026-08-09T16:00:00.000Z	49 \| good	8.888 \| good	38.931 \| good	43.625 \| good	0.32 \| good	0.451 \| good	0.204 \| good
2026-08-09T17:00:00.000Z	39 \| good	6.652 \| good	29.829 \| good	41.801 \| good	0.32 \| good	0.399 \| good	0.201 \| good
2026-08-09T18:00:00.000Z	37 \| good	4.981 \| good	21.275 \| good	40.05 \| good	0.318 \| good	0.37 \| good	0.198 \| good
2026-08-09T19:00:00.000Z	35 \| good	4.222 \| good	18.389 \| good	38.009 \| good	0.317 \| good	0.371 \| good	0.195 \| good
2026-08-09T20:00:00.000Z	35 \| good	3.78 \| good	16.69 \| good	37.752 \| good	0.304 \| good	0.397 \| good	0.191 \| good
2026-08-09T21:00:00.000Z	33 \| good	3.587 \| good	15.629 \| good	35.822 \| good	0.284 \| good	0.475 \| good	0.187 \| good
2026-08-09T22:00:00.000Z	32 \| good	3.633 \| good	16.117 \| good	34.754 \| good	0.252 \| good	0.809 \| good	0.185 \| good
2026-08-09T23:00:00.000Z	29 \| good	4.315 \| good	19.085 \| good	31.253 \| good	0.223 \| good	1.39 \| good	0.187 \| good
2026-08-10T00:00:00.000Z	28 \| good	4.573 \| good	19.545 \| good	29.94 \| good	0.213 \| good	2.291 \| good	0.189 \| good
2026-08-10T01:00:00.000Z	27 \| good	4.574 \| good	19.63 \| good	27.127 \| good	0.208 \| good	3.209 \| good	0.191 \| good
2026-08-10T02:00:00.000Z	24 \| good	3.821 \| good	16.555 \| good	25.746 \| good	0.196 \| good	3.523 \| good	0.187 \| good
2026-08-10T03:00:00.000Z	33 \| good	5.881 \| good	26.098 \| good	20.612 \| good	0.19 \| good	4.226 \| good	0.188 \| good
2026-08-10T04:00:00.000Z	52 \| moderate	9.716 \| good	43.189 \| good	19.437 \| good	0.184 \| good	4.789 \| good	0.19 \| good
2026-08-10T05:00:00.000Z	38 \| good	7.476 \| good	32.968 \| good	15.36 \| good	0.174 \| good	4.945 \| good	0.188 \| good
2026-08-10T06:00:00.000Z	33 \| good	6.256 \| good	27.906 \| good	11.844 \| good	0.17 \| good	5.412 \| good	0.188 \| good
2026-08-10T07:00:00.000Z	38 \| good	6.556 \| good	29.138 \| good	9.588 \| good	0.168 \| good	6.193 \| good	0.192 \| good
2026-08-10T08:00:00.000Z	27 \| good	5.41 \| good	23.145 \| good	8.33 \| good	0.169 \| good	7.145 \| good	0.197 \| good
2026-08-10T09:00:00.000Z	22 \| good	4.486 \| good	19.692 \| good	5.333 \| good	0.156 \| good	8.33 \| good	0.204 \| good
2026-08-10T10:00:00.000Z	27 \| good	4.51 \| good	19.335 \| good	5.572 \| good	0.159 \| good	9.177 \| good	0.212 \| good
2026-08-10T11:00:00.000Z	22 \| good	3.776 \| good	16.422 \| good	8.533 \| good	0.165 \| good	8.736 \| good	0.224 \| good
2026-08-10T12:00:00.000Z	27 \| good	4.584 \| good	19.544 \| good	12.659 \| good	0.152 \| good	4.437 \| good	0.21 \| good
2026-08-10T13:00:00.000Z	38 \| good	6.551 \| good	29.255 \| good	18.363 \| good	0.163 \| good	1.96 \| good	0.178 \| good
2026-08-10T14:00:00.000Z	38 \| good	6.553 \| good	28.886 \| good	27.101 \| good	0.173 \| good	1.108 \| good	0.155 \| good
2026-08-10T15:00:00.000Z	33 \| good	5.761 \| good	24.974 \| good	34.62 \| good	0.192 \| good	0.736 \| good	0.147 \| good
2026-08-10T16:00:00.000Z	32 \| good	5.073 \| good	21.977 \| good	35.448 \| good	0.213 \| good	0.567 \| good	0.152 \| good
2026-08-10T17:00:00.000Z	35 \| good	5.551 \| good	23.684 \| good	37.737 \| good	0.237 \| good	0.47 \| good	0.16 \| good
2026-08-10T18:00:00.000Z	40 \| good	6.424 \| good	28.379 \| good	43.148 \| good	0.263 \| good	0.47 \| good	0.167 \| good
2026-08-10T19:00:00.000Z	41 \| good	6.054 \| good	27.199 \| good	44.285 \| good	0.308 \| good	0.519 \| good	0.175 \| good
2026-08-10T20:00:00.000Z	34 \| good	6.212 \| good	27.583 \| good	37.269 \| good	0.381 \| good	0.625 \| good	0.186 \| good
2026-08-10T21:00:00.000Z	33 \| good	6.007 \| good	26.334 \| good	32.546 \| good	0.446 \| good	0.852 \| good	0.199 \| good
2026-08-10T22:00:00.000Z	33 \| good	5.839 \| good	25.178 \| good	30.589 \| good	0.442 \| good	1.4 \| good	0.212 \| good
2026-08-10T23:00:00.000Z	38 \| good	6.959 \| good	30.929 \| good	25.017 \| good	0.423 \| good	2.015 \| good	0.223 \| good
2026-08-11T00:00:00.000Z	56 \| moderate	11.843 \| good	12.094 \| good	54.493 \| good	0.455 \| good	2.071 \| good	0.226 \| good
2026-08-11T01:00:00.000Z	35 \| good	6.256 \| good	27.684 \| good	38.05 \| good	0.442 \| good	2.374 \| good	0.228 \| good

Holyoke, Massachusetts live air quality index now

Major air pollutants in Holyoke, Massachusetts

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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Holyoke, Massachusetts air quality map: Track AQI near you

Air quality in nearby cities

Chicopee, Massachusetts

South Hadley, Massachusetts

Easthampton Town, Massachusetts

West Springfield Town, Massachusetts

Springfield, Massachusetts

Ludlow, Massachusetts

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Frequently asked questions

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What is the current concentration of PM10 in Holyoke, Massachusetts?

What is the current concentration of carbon monoxide (CO) in Holyoke, Massachusetts?

What is the current concentration of sulfur dioxide (SO2) in Holyoke, Massachusetts?

What is the current concentration of ozone (O3) in Holyoke, Massachusetts?

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Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What is the current concentration of PM_2.5 in Holyoke, Massachusetts?

What is the current concentration of PM₁₀ in Holyoke, Massachusetts?

What is the current concentration of sulfur dioxide (SO₂) in Holyoke, Massachusetts?

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What is the current concentration of nitrogen dioxide (NO₂) in Holyoke, Massachusetts?