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

The current PM10 concentration at Holyoke, Massachusetts is 55.992 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Holyoke, Massachusetts is 0.426 ppb.

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

The current ozone (O3) concentration at Holyoke, Massachusetts is 16.555 ppm.

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

The current nitrogen dioxide (NO2) concentration at Holyoke, Massachusetts is 4.875 ppb.

Live air quality index in Holyoke, Massachusetts today

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

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)

Moderate

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)

12.57 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

55.99 μg/m³

155

255

425

605+

Ozone (O₃)

16.55 ppb

201

201+

Sulfur Dioxide (SO₂)

0.43 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.88 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.19 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
2025-06-05T20:00:00.000Z	84 \| moderate	19.29 \| fine	83.288 \| fine	65.193 \| fine	0.788 \| good	2.779 \| good	0.35 \| good
2025-06-05T21:00:00.000Z	93 \| moderate	19.363 \| fine	82.691 \| fine	68.425 \| fine	0.795 \| good	2.839 \| good	0.316 \| good
2025-06-05T22:00:00.000Z	77 \| moderate	19.134 \| fine	83.562 \| fine	62.802 \| fine	0.765 \| good	2.778 \| good	0.352 \| good
2025-06-05T23:00:00.000Z	90 \| moderate	19.033 \| fine	82.198 \| fine	66.517 \| fine	0.838 \| good	3.33 \| good	0.355 \| good
2025-06-06T00:00:00.000Z	112 \| sensitive	19.184 \| fine	81.967 \| fine	74.13 \| moderate	0.882 \| good	4.832 \| good	0.355 \| good
2025-06-06T01:00:00.000Z	93 \| moderate	19.384 \| fine	84.1 \| fine	68.49 \| fine	0.876 \| good	6.409 \| good	0.341 \| good
2025-06-06T02:00:00.000Z	105 \| sensitive	19.506 \| fine	84.802 \| fine	71.715 \| moderate	0.875 \| good	6.991 \| good	0.306 \| good
2025-06-06T03:00:00.000Z	97 \| moderate	19.534 \| fine	83.745 \| fine	69.119 \| fine	0.874 \| good	7.263 \| good	0.324 \| good
2025-06-06T04:00:00.000Z	84 \| moderate	19.54 \| fine	84.272 \| fine	64.831 \| fine	0.876 \| good	7.608 \| good	0.316 \| good
2025-06-06T05:00:00.000Z	93 \| moderate	19.507 \| fine	83.843 \| fine	67.721 \| fine	0.58 \| good	16.895 \| good	0.28 \| good
2025-06-06T06:00:00.000Z	105 \| sensitive	17.293 \| fine	42.352 \| good	72.268 \| moderate	0.669 \| good	16.621 \| good	0.208 \| good
2025-06-06T07:00:00.000Z	64 \| moderate	16.261 \| fine	47.039 \| good	48.001 \| good	0.698 \| good	8.009 \| good	0.208 \| good
2025-06-06T08:00:00.000Z	67 \| moderate	18.42 \| fine	78.942 \| fine	44.18 \| good	0.676 \| good	8.061 \| good	0.172 \| good
2025-06-06T09:00:00.000Z	67 \| moderate	18.359 \| fine	78.572 \| fine	38.023 \| good	0.764 \| good	3.899 \| good	0.204 \| good
2025-06-06T10:00:00.000Z	67 \| moderate	18.29 \| fine	78.584 \| fine	32.39 \| good	0.696 \| good	2.65 \| good	0.189 \| good
2025-06-06T11:00:00.000Z	67 \| moderate	18.34 \| fine	79.292 \| fine	31.991 \| good	0.697 \| good	3.656 \| good	0.24 \| good
2025-06-06T12:00:00.000Z	67 \| moderate	18.157 \| fine	78.801 \| fine	33.615 \| good	0.758 \| good	4.249 \| good	0.281 \| good
2025-06-06T13:00:00.000Z	66 \| moderate	17.352 \| fine	75.547 \| fine	29.355 \| good	0.645 \| good	4.555 \| good	0.245 \| good
2025-06-06T14:00:00.000Z	64 \| moderate	15.704 \| fine	68.14 \| fine	34.352 \| good	0.782 \| good	3.606 \| good	0.238 \| good
2025-06-06T15:00:00.000Z	62 \| moderate	14.647 \| fine	64.297 \| fine	36.05 \| good	0.659 \| good	2.656 \| good	0.253 \| good
2025-06-06T16:00:00.000Z	60 \| moderate	13.788 \| fine	60.684 \| fine	39.634 \| good	0.525 \| good	2.029 \| good	0.253 \| good
2025-06-06T17:00:00.000Z	58 \| moderate	13.275 \| fine	58.956 \| fine	42.281 \| good	0.51 \| good	2.647 \| good	0.287 \| good
2025-06-06T18:00:00.000Z	58 \| moderate	13.254 \| fine	58.979 \| fine	47.058 \| good	0.552 \| good	2.67 \| good	0.287 \| good
2025-06-06T19:00:00.000Z	60 \| moderate	13.934 \| fine	61.706 \| fine	50.871 \| good	0.597 \| good	2.764 \| good	0.337 \| good
2025-06-06T20:00:00.000Z	64 \| moderate	15.612 \| fine	68.164 \| fine	53.656 \| good	0.633 \| good	3.033 \| good	0.285 \| good
2025-06-06T21:00:00.000Z	67 \| moderate	17.581 \| fine	76.073 \| fine	54.508 \| good	0.717 \| good	2.744 \| good	0.32 \| good
2025-06-06T22:00:00.000Z	71 \| moderate	18.342 \| fine	79.534 \| fine	60.66 \| fine	0.764 \| good	4.04 \| good	0.305 \| good
2025-06-06T23:00:00.000Z	69 \| moderate	18.822 \| fine	81.185 \| fine	57.973 \| fine	0.839 \| good	4.988 \| good	0.306 \| good
2025-06-07T00:00:00.000Z	66 \| moderate	16.684 \| fine	72.57 \| fine	48.049 \| good	0.538 \| good	3.271 \| good	0.237 \| good
2025-06-07T01:00:00.000Z	62 \| moderate	14.633 \| fine	65.178 \| fine	53.339 \| good	0.278 \| good	3.346 \| good	0.203 \| good
2025-06-07T02:00:00.000Z	58 \| moderate	12.843 \| fine	57.716 \| fine	51.996 \| good	0.404 \| good	2.711 \| good	0.226 \| good
2025-06-07T03:00:00.000Z	56 \| moderate	11.938 \| good	52.394 \| good	44.808 \| good	0.455 \| good	2.992 \| good	0.203 \| good
2025-06-07T04:00:00.000Z	56 \| moderate	11.92 \| good	52.539 \| good	43.516 \| good	0.43 \| good	2.957 \| good	0.171 \| good
2025-06-07T05:00:00.000Z	56 \| moderate	11.911 \| good	52.445 \| good	41.708 \| good	0.975 \| good	6.138 \| good	0.171 \| good
2025-06-07T06:00:00.000Z	54 \| moderate	11.309 \| good	30.902 \| good	43.671 \| good	0.959 \| good	7.747 \| good	0.17 \| good
2025-06-07T07:00:00.000Z	44 \| good	8.437 \| good	22.471 \| good	21.338 \| good	0.475 \| good	7.216 \| good	0.171 \| good
2025-06-07T08:00:00.000Z	58 \| moderate	12.906 \| fine	56.632 \| fine	18.507 \| good	0.477 \| good	5.989 \| good	0.21 \| good
2025-06-07T09:00:00.000Z	58 \| moderate	12.636 \| fine	55.904 \| fine	16.207 \| good	0.41 \| good	7.991 \| good	0.167 \| good
2025-06-07T10:00:00.000Z	58 \| moderate	12.572 \| fine	55.992 \| fine	16.555 \| good	0.426 \| good	4.875 \| good	0.188 \| good
2025-06-07T11:00:00.000Z	58 \| moderate	12.583 \| fine	56.474 \| fine	13.839 \| good	0.38 \| good	3.582 \| good	0.185 \| good
2025-06-07T12:00:00.000Z	58 \| moderate	12.643 \| fine	56.186 \| fine	16.524 \| good	0.395 \| good	3.275 \| good	0.185 \| good
2025-06-07T13:00:00.000Z	58 \| moderate	12.678 \| fine	56.523 \| fine	18.438 \| good	0.328 \| good	3.595 \| good	0.189 \| good
2025-06-07T14:00:00.000Z	58 \| moderate	12.792 \| fine	56.664 \| fine	23.355 \| good	0.412 \| good	4.181 \| good	0.223 \| good
2025-06-07T15:00:00.000Z	58 \| moderate	12.545 \| fine	55.197 \| fine	22.649 \| good	0.4 \| good	3.597 \| good	0.275 \| good
2025-06-07T16:00:00.000Z	56 \| moderate	11.904 \| good	52.666 \| good	22.716 \| good	0.33 \| good	3.335 \| good	0.223 \| good
2025-06-07T17:00:00.000Z	56 \| moderate	11.593 \| good	50.873 \| good	21.352 \| good	0.363 \| good	2.658 \| good	0.189 \| good
2025-06-07T18:00:00.000Z	54 \| moderate	11.072 \| good	48.302 \| good	22.946 \| good	0.368 \| good	3.581 \| good	0.189 \| good
2025-06-07T11:00:00.000Z	58 \| moderate	12.572 \| fine	55.992 \| fine	16.555 \| good	0.426 \| good	4.875 \| good	0.188 \| good
2025-06-07T12:00:00.000Z	33 \| good	6.043 \| good	27.034 \| good	26.018 \| good	0.229 \| good	3.154 \| good	0.164 \| good
2025-06-07T13:00:00.000Z	33 \| good	5.7 \| good	24.448 \| good	26.583 \| good	0.305 \| good	2.913 \| good	0.164 \| good
2025-06-07T14:00:00.000Z	44 \| good	7.574 \| good	33.072 \| good	28.875 \| good	0.294 \| good	2.803 \| good	0.162 \| good
2025-06-07T15:00:00.000Z	49 \| good	9.225 \| good	41.015 \| good	34.372 \| good	0.284 \| good	2.694 \| good	0.16 \| good
2025-06-07T16:00:00.000Z	49 \| good	8.742 \| good	38.466 \| good	37.47 \| good	0.301 \| good	1.708 \| good	0.171 \| good
2025-06-07T17:00:00.000Z	39 \| good	6.613 \| good	29.122 \| good	41.979 \| good	0.327 \| good	1.707 \| good	0.167 \| good
2025-06-07T18:00:00.000Z	42 \| good	5.648 \| good	24.336 \| good	44.528 \| good	0.354 \| good	1.705 \| good	0.163 \| good
2025-06-07T19:00:00.000Z	35 \| good	6.187 \| good	27.425 \| good	37.894 \| good	0.188 \| good	1.507 \| good	0.196 \| good
2025-06-07T20:00:00.000Z	38 \| good	6.621 \| good	29.511 \| good	34.665 \| good	0.214 \| good	1.595 \| good	0.193 \| good
2025-06-07T21:00:00.000Z	40 \| good	7.054 \| good	31.112 \| good	43.215 \| good	0.24 \| good	1.683 \| good	0.19 \| good
2025-06-07T22:00:00.000Z	44 \| good	7.926 \| good	34.545 \| good	48.239 \| good	0.229 \| good	3.28 \| good	0.237 \| good
2025-06-07T23:00:00.000Z	56 \| moderate	11.969 \| good	53.716 \| good	50.24 \| good	0.228 \| good	3.544 \| good	0.237 \| good
2025-06-08T00:00:00.000Z	60 \| moderate	13.525 \| fine	60.807 \| fine	41.489 \| good	0.226 \| good	3.808 \| good	0.236 \| good
2025-06-08T01:00:00.000Z	60 \| moderate	14.499 \| fine	64.553 \| fine	37.034 \| good	0.323 \| good	3.658 \| good	0.266 \| good
2025-06-08T02:00:00.000Z	64 \| moderate	15.77 \| fine	70.326 \| fine	31.414 \| good	0.309 \| good	3.8 \| good	0.263 \| good
2025-06-08T03:00:00.000Z	64 \| moderate	15.722 \| fine	70.409 \| fine	28.305 \| good	0.294 \| good	3.943 \| good	0.26 \| good
2025-06-08T04:00:00.000Z	60 \| moderate	14.411 \| fine	64.589 \| fine	26.729 \| good	0.336 \| good	2.048 \| good	0.287 \| good
2025-06-08T05:00:00.000Z	58 \| moderate	13.383 \| fine	60.47 \| fine	29.983 \| good	0.315 \| good	2.082 \| good	0.279 \| good
2025-06-08T06:00:00.000Z	54 \| moderate	10.626 \| good	47.36 \| good	29.068 \| good	0.295 \| good	2.117 \| good	0.271 \| good
2025-06-08T07:00:00.000Z	44 \| good	8.378 \| good	36.994 \| good	27.884 \| good	0.355 \| good	1.47 \| good	0.309 \| good
2025-06-08T08:00:00.000Z	38 \| good	7.082 \| good	31.145 \| good	26.474 \| good	0.342 \| good	1.56 \| good	0.299 \| good
2025-06-08T09:00:00.000Z	44 \| good	7.83 \| good	34.271 \| good	16.31 \| good	0.329 \| good	1.651 \| good	0.289 \| good
2025-06-08T10:00:00.000Z	44 \| good	7.518 \| good	32.816 \| good	17.754 \| good	0.235 \| good	1.474 \| good	0.304 \| good
2025-06-08T11:00:00.000Z	52 \| moderate	10.479 \| good	46.403 \| good	21.59 \| good	0.254 \| good	1.634 \| good	0.295 \| good
2025-06-08T12:00:00.000Z	60 \| moderate	14.088 \| fine	63.312 \| fine	27.009 \| good	0.272 \| good	1.795 \| good	0.286 \| good
2025-06-08T13:00:00.000Z	60 \| moderate	14.05 \| fine	63.206 \| fine	27.94 \| good	0.246 \| good	1.347 \| good	0.271 \| good
2025-06-08T14:00:00.000Z	62 \| moderate	14.672 \| fine	65.616 \| fine	28.82 \| good	0.288 \| good	1.482 \| good	0.266 \| good
2025-06-08T15:00:00.000Z	62 \| moderate	15.292 \| fine	67.96 \| fine	33.472 \| good	0.33 \| good	1.617 \| good	0.26 \| good
2025-06-08T16:00:00.000Z	60 \| moderate	13.698 \| fine	61.439 \| fine	36.845 \| good	0.22 \| good	0.951 \| good	0.256 \| good
2025-06-08T17:00:00.000Z	56 \| moderate	12.309 \| fine	55.004 \| fine	35.943 \| good	0.241 \| good	1.011 \| good	0.256 \| good
2025-06-08T18:00:00.000Z	54 \| moderate	11.215 \| good	49.876 \| good	37.216 \| good	0.263 \| good	1.072 \| good	0.256 \| good
2025-06-08T19:00:00.000Z	52 \| moderate	10.481 \| good	46.329 \| good	39.228 \| good	0.245 \| good	1.404 \| good	0.27 \| good
2025-06-08T20:00:00.000Z	56 \| moderate	12.205 \| fine	54.327 \| good	38.966 \| good	0.253 \| good	1.457 \| good	0.272 \| good
2025-06-08T21:00:00.000Z	60 \| moderate	13.533 \| fine	60.981 \| fine	44.115 \| good	0.261 \| good	1.51 \| good	0.274 \| good
2025-06-08T22:00:00.000Z	58 \| moderate	12.669 \| fine	56.897 \| fine	46.802 \| good	0.359 \| good	3.888 \| good	0.302 \| good
2025-06-08T23:00:00.000Z	49 \| good	8.845 \| good	38.978 \| good	49.988 \| good	0.377 \| good	3.966 \| good	0.302 \| good
2025-06-09T00:00:00.000Z	52 \| moderate	10.127 \| good	44.8 \| good	46.241 \| good	0.395 \| good	4.044 \| good	0.301 \| good
2025-06-09T01:00:00.000Z	62 \| moderate	14.532 \| fine	64.495 \| fine	42.069 \| good	0.575 \| good	5.769 \| good	0.313 \| good
2025-06-09T02:00:00.000Z	64 \| moderate	15.945 \| fine	71.215 \| fine	40.351 \| good	0.601 \| good	6.176 \| good	0.312 \| good
2025-06-09T03:00:00.000Z	60 \| moderate	14.06 \| fine	63.161 \| fine	37.23 \| good	0.628 \| good	6.584 \| good	0.311 \| good
2025-06-09T04:00:00.000Z	54 \| moderate	10.863 \| good	47.897 \| good	34.106 \| good	0.617 \| good	6.696 \| good	0.321 \| good
2025-06-09T05:00:00.000Z	52 \| moderate	9.905 \| good	44.163 \| good	33.166 \| good	0.651 \| good	7.07 \| good	0.32 \| good
2025-06-09T06:00:00.000Z	62 \| moderate	14.983 \| fine	15.316 \| good	29.563 \| good	0.687 \| good	7.412 \| good	0.318 \| good
2025-06-09T07:00:00.000Z	44 \| good	8.473 \| good	37.026 \| good	34.963 \| good	0.623 \| good	5.176 \| good	0.307 \| good
2025-06-09T08:00:00.000Z	44 \| good	7.873 \| good	34.441 \| good	33.434 \| good	0.68 \| good	5.354 \| good	0.304 \| good
2025-06-09T09:00:00.000Z	44 \| good	7.889 \| good	34.37 \| good	23.562 \| good	0.736 \| good	5.532 \| good	0.301 \| good
2025-06-09T10:00:00.000Z	44 \| good	7.685 \| good	33.907 \| good	21.824 \| good	0.699 \| good	2.19 \| good	0.268 \| good
2025-06-09T11:00:00.000Z	38 \| good	7.13 \| good	31.489 \| good	24.41 \| good	0.732 \| good	2.373 \| good	0.271 \| good

Holyoke

Get reliable air quality data to drive your business

Holyoke, Massachusetts air quality map: Track AQI near you

0.19ppm

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 11:00:00 on 2025-06-06.

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 07:00:00 on 2025-06-07.

What is the current air quality in Holyoke, Massachusetts?

The current air quality in Holyoke, Massachusetts is 58, categorized as Moderate based on real-time data.

What pollutant is the most common in Holyoke, Massachusetts?

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

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 12.572 μg/m³.

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

The current PM₁₀ concentration at Holyoke, Massachusetts is 55.992 μg/m³.

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

The current carbon monoxide (CO) concentration at Holyoke, Massachusetts is 0.188 ppm.

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

The current sulfur dioxide (SO₂) concentration at Holyoke, Massachusetts is 0.426 ppb.

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

The current ozone (O₃) concentration at Holyoke, Massachusetts is 16.555 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Holyoke, Massachusetts is 4.875 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-05T20:00:00.000Z	84 \| moderate	19.29 \| fine	83.288 \| fine	65.193 \| fine	0.788 \| good	2.779 \| good	0.35 \| good
2025-06-05T21:00:00.000Z	93 \| moderate	19.363 \| fine	82.691 \| fine	68.425 \| fine	0.795 \| good	2.839 \| good	0.316 \| good
2025-06-05T22:00:00.000Z	77 \| moderate	19.134 \| fine	83.562 \| fine	62.802 \| fine	0.765 \| good	2.778 \| good	0.352 \| good
2025-06-05T23:00:00.000Z	90 \| moderate	19.033 \| fine	82.198 \| fine	66.517 \| fine	0.838 \| good	3.33 \| good	0.355 \| good
2025-06-06T00:00:00.000Z	112 \| sensitive	19.184 \| fine	81.967 \| fine	74.13 \| moderate	0.882 \| good	4.832 \| good	0.355 \| good
2025-06-06T01:00:00.000Z	93 \| moderate	19.384 \| fine	84.1 \| fine	68.49 \| fine	0.876 \| good	6.409 \| good	0.341 \| good
2025-06-06T02:00:00.000Z	105 \| sensitive	19.506 \| fine	84.802 \| fine	71.715 \| moderate	0.875 \| good	6.991 \| good	0.306 \| good
2025-06-06T03:00:00.000Z	97 \| moderate	19.534 \| fine	83.745 \| fine	69.119 \| fine	0.874 \| good	7.263 \| good	0.324 \| good
2025-06-06T04:00:00.000Z	84 \| moderate	19.54 \| fine	84.272 \| fine	64.831 \| fine	0.876 \| good	7.608 \| good	0.316 \| good
2025-06-06T05:00:00.000Z	93 \| moderate	19.507 \| fine	83.843 \| fine	67.721 \| fine	0.58 \| good	16.895 \| good	0.28 \| good
2025-06-06T06:00:00.000Z	105 \| sensitive	17.293 \| fine	42.352 \| good	72.268 \| moderate	0.669 \| good	16.621 \| good	0.208 \| good
2025-06-06T07:00:00.000Z	64 \| moderate	16.261 \| fine	47.039 \| good	48.001 \| good	0.698 \| good	8.009 \| good	0.208 \| good
2025-06-06T08:00:00.000Z	67 \| moderate	18.42 \| fine	78.942 \| fine	44.18 \| good	0.676 \| good	8.061 \| good	0.172 \| good
2025-06-06T09:00:00.000Z	67 \| moderate	18.359 \| fine	78.572 \| fine	38.023 \| good	0.764 \| good	3.899 \| good	0.204 \| good
2025-06-06T10:00:00.000Z	67 \| moderate	18.29 \| fine	78.584 \| fine	32.39 \| good	0.696 \| good	2.65 \| good	0.189 \| good
2025-06-06T11:00:00.000Z	67 \| moderate	18.34 \| fine	79.292 \| fine	31.991 \| good	0.697 \| good	3.656 \| good	0.24 \| good
2025-06-06T12:00:00.000Z	67 \| moderate	18.157 \| fine	78.801 \| fine	33.615 \| good	0.758 \| good	4.249 \| good	0.281 \| good
2025-06-06T13:00:00.000Z	66 \| moderate	17.352 \| fine	75.547 \| fine	29.355 \| good	0.645 \| good	4.555 \| good	0.245 \| good
2025-06-06T14:00:00.000Z	64 \| moderate	15.704 \| fine	68.14 \| fine	34.352 \| good	0.782 \| good	3.606 \| good	0.238 \| good
2025-06-06T15:00:00.000Z	62 \| moderate	14.647 \| fine	64.297 \| fine	36.05 \| good	0.659 \| good	2.656 \| good	0.253 \| good
2025-06-06T16:00:00.000Z	60 \| moderate	13.788 \| fine	60.684 \| fine	39.634 \| good	0.525 \| good	2.029 \| good	0.253 \| good
2025-06-06T17:00:00.000Z	58 \| moderate	13.275 \| fine	58.956 \| fine	42.281 \| good	0.51 \| good	2.647 \| good	0.287 \| good
2025-06-06T18:00:00.000Z	58 \| moderate	13.254 \| fine	58.979 \| fine	47.058 \| good	0.552 \| good	2.67 \| good	0.287 \| good
2025-06-06T19:00:00.000Z	60 \| moderate	13.934 \| fine	61.706 \| fine	50.871 \| good	0.597 \| good	2.764 \| good	0.337 \| good
2025-06-06T20:00:00.000Z	64 \| moderate	15.612 \| fine	68.164 \| fine	53.656 \| good	0.633 \| good	3.033 \| good	0.285 \| good
2025-06-06T21:00:00.000Z	67 \| moderate	17.581 \| fine	76.073 \| fine	54.508 \| good	0.717 \| good	2.744 \| good	0.32 \| good
2025-06-06T22:00:00.000Z	71 \| moderate	18.342 \| fine	79.534 \| fine	60.66 \| fine	0.764 \| good	4.04 \| good	0.305 \| good
2025-06-06T23:00:00.000Z	69 \| moderate	18.822 \| fine	81.185 \| fine	57.973 \| fine	0.839 \| good	4.988 \| good	0.306 \| good
2025-06-07T00:00:00.000Z	66 \| moderate	16.684 \| fine	72.57 \| fine	48.049 \| good	0.538 \| good	3.271 \| good	0.237 \| good
2025-06-07T01:00:00.000Z	62 \| moderate	14.633 \| fine	65.178 \| fine	53.339 \| good	0.278 \| good	3.346 \| good	0.203 \| good
2025-06-07T02:00:00.000Z	58 \| moderate	12.843 \| fine	57.716 \| fine	51.996 \| good	0.404 \| good	2.711 \| good	0.226 \| good
2025-06-07T03:00:00.000Z	56 \| moderate	11.938 \| good	52.394 \| good	44.808 \| good	0.455 \| good	2.992 \| good	0.203 \| good
2025-06-07T04:00:00.000Z	56 \| moderate	11.92 \| good	52.539 \| good	43.516 \| good	0.43 \| good	2.957 \| good	0.171 \| good
2025-06-07T05:00:00.000Z	56 \| moderate	11.911 \| good	52.445 \| good	41.708 \| good	0.975 \| good	6.138 \| good	0.171 \| good
2025-06-07T06:00:00.000Z	54 \| moderate	11.309 \| good	30.902 \| good	43.671 \| good	0.959 \| good	7.747 \| good	0.17 \| good
2025-06-07T07:00:00.000Z	44 \| good	8.437 \| good	22.471 \| good	21.338 \| good	0.475 \| good	7.216 \| good	0.171 \| good
2025-06-07T08:00:00.000Z	58 \| moderate	12.906 \| fine	56.632 \| fine	18.507 \| good	0.477 \| good	5.989 \| good	0.21 \| good
2025-06-07T09:00:00.000Z	58 \| moderate	12.636 \| fine	55.904 \| fine	16.207 \| good	0.41 \| good	7.991 \| good	0.167 \| good
2025-06-07T10:00:00.000Z	58 \| moderate	12.572 \| fine	55.992 \| fine	16.555 \| good	0.426 \| good	4.875 \| good	0.188 \| good
2025-06-07T11:00:00.000Z	58 \| moderate	12.583 \| fine	56.474 \| fine	13.839 \| good	0.38 \| good	3.582 \| good	0.185 \| good
2025-06-07T12:00:00.000Z	58 \| moderate	12.643 \| fine	56.186 \| fine	16.524 \| good	0.395 \| good	3.275 \| good	0.185 \| good
2025-06-07T13:00:00.000Z	58 \| moderate	12.678 \| fine	56.523 \| fine	18.438 \| good	0.328 \| good	3.595 \| good	0.189 \| good
2025-06-07T14:00:00.000Z	58 \| moderate	12.792 \| fine	56.664 \| fine	23.355 \| good	0.412 \| good	4.181 \| good	0.223 \| good
2025-06-07T15:00:00.000Z	58 \| moderate	12.545 \| fine	55.197 \| fine	22.649 \| good	0.4 \| good	3.597 \| good	0.275 \| good
2025-06-07T16:00:00.000Z	56 \| moderate	11.904 \| good	52.666 \| good	22.716 \| good	0.33 \| good	3.335 \| good	0.223 \| good
2025-06-07T17:00:00.000Z	56 \| moderate	11.593 \| good	50.873 \| good	21.352 \| good	0.363 \| good	2.658 \| good	0.189 \| good
2025-06-07T18:00:00.000Z	54 \| moderate	11.072 \| good	48.302 \| good	22.946 \| good	0.368 \| good	3.581 \| good	0.189 \| good
2025-06-07T11:00:00.000Z	58 \| moderate	12.572 \| fine	55.992 \| fine	16.555 \| good	0.426 \| good	4.875 \| good	0.188 \| good
2025-06-07T12:00:00.000Z	33 \| good	6.043 \| good	27.034 \| good	26.018 \| good	0.229 \| good	3.154 \| good	0.164 \| good
2025-06-07T13:00:00.000Z	33 \| good	5.7 \| good	24.448 \| good	26.583 \| good	0.305 \| good	2.913 \| good	0.164 \| good
2025-06-07T14:00:00.000Z	44 \| good	7.574 \| good	33.072 \| good	28.875 \| good	0.294 \| good	2.803 \| good	0.162 \| good
2025-06-07T15:00:00.000Z	49 \| good	9.225 \| good	41.015 \| good	34.372 \| good	0.284 \| good	2.694 \| good	0.16 \| good
2025-06-07T16:00:00.000Z	49 \| good	8.742 \| good	38.466 \| good	37.47 \| good	0.301 \| good	1.708 \| good	0.171 \| good
2025-06-07T17:00:00.000Z	39 \| good	6.613 \| good	29.122 \| good	41.979 \| good	0.327 \| good	1.707 \| good	0.167 \| good
2025-06-07T18:00:00.000Z	42 \| good	5.648 \| good	24.336 \| good	44.528 \| good	0.354 \| good	1.705 \| good	0.163 \| good
2025-06-07T19:00:00.000Z	35 \| good	6.187 \| good	27.425 \| good	37.894 \| good	0.188 \| good	1.507 \| good	0.196 \| good
2025-06-07T20:00:00.000Z	38 \| good	6.621 \| good	29.511 \| good	34.665 \| good	0.214 \| good	1.595 \| good	0.193 \| good
2025-06-07T21:00:00.000Z	40 \| good	7.054 \| good	31.112 \| good	43.215 \| good	0.24 \| good	1.683 \| good	0.19 \| good
2025-06-07T22:00:00.000Z	44 \| good	7.926 \| good	34.545 \| good	48.239 \| good	0.229 \| good	3.28 \| good	0.237 \| good
2025-06-07T23:00:00.000Z	56 \| moderate	11.969 \| good	53.716 \| good	50.24 \| good	0.228 \| good	3.544 \| good	0.237 \| good
2025-06-08T00:00:00.000Z	60 \| moderate	13.525 \| fine	60.807 \| fine	41.489 \| good	0.226 \| good	3.808 \| good	0.236 \| good
2025-06-08T01:00:00.000Z	60 \| moderate	14.499 \| fine	64.553 \| fine	37.034 \| good	0.323 \| good	3.658 \| good	0.266 \| good
2025-06-08T02:00:00.000Z	64 \| moderate	15.77 \| fine	70.326 \| fine	31.414 \| good	0.309 \| good	3.8 \| good	0.263 \| good
2025-06-08T03:00:00.000Z	64 \| moderate	15.722 \| fine	70.409 \| fine	28.305 \| good	0.294 \| good	3.943 \| good	0.26 \| good
2025-06-08T04:00:00.000Z	60 \| moderate	14.411 \| fine	64.589 \| fine	26.729 \| good	0.336 \| good	2.048 \| good	0.287 \| good
2025-06-08T05:00:00.000Z	58 \| moderate	13.383 \| fine	60.47 \| fine	29.983 \| good	0.315 \| good	2.082 \| good	0.279 \| good
2025-06-08T06:00:00.000Z	54 \| moderate	10.626 \| good	47.36 \| good	29.068 \| good	0.295 \| good	2.117 \| good	0.271 \| good
2025-06-08T07:00:00.000Z	44 \| good	8.378 \| good	36.994 \| good	27.884 \| good	0.355 \| good	1.47 \| good	0.309 \| good
2025-06-08T08:00:00.000Z	38 \| good	7.082 \| good	31.145 \| good	26.474 \| good	0.342 \| good	1.56 \| good	0.299 \| good
2025-06-08T09:00:00.000Z	44 \| good	7.83 \| good	34.271 \| good	16.31 \| good	0.329 \| good	1.651 \| good	0.289 \| good
2025-06-08T10:00:00.000Z	44 \| good	7.518 \| good	32.816 \| good	17.754 \| good	0.235 \| good	1.474 \| good	0.304 \| good
2025-06-08T11:00:00.000Z	52 \| moderate	10.479 \| good	46.403 \| good	21.59 \| good	0.254 \| good	1.634 \| good	0.295 \| good
2025-06-08T12:00:00.000Z	60 \| moderate	14.088 \| fine	63.312 \| fine	27.009 \| good	0.272 \| good	1.795 \| good	0.286 \| good
2025-06-08T13:00:00.000Z	60 \| moderate	14.05 \| fine	63.206 \| fine	27.94 \| good	0.246 \| good	1.347 \| good	0.271 \| good
2025-06-08T14:00:00.000Z	62 \| moderate	14.672 \| fine	65.616 \| fine	28.82 \| good	0.288 \| good	1.482 \| good	0.266 \| good
2025-06-08T15:00:00.000Z	62 \| moderate	15.292 \| fine	67.96 \| fine	33.472 \| good	0.33 \| good	1.617 \| good	0.26 \| good
2025-06-08T16:00:00.000Z	60 \| moderate	13.698 \| fine	61.439 \| fine	36.845 \| good	0.22 \| good	0.951 \| good	0.256 \| good
2025-06-08T17:00:00.000Z	56 \| moderate	12.309 \| fine	55.004 \| fine	35.943 \| good	0.241 \| good	1.011 \| good	0.256 \| good
2025-06-08T18:00:00.000Z	54 \| moderate	11.215 \| good	49.876 \| good	37.216 \| good	0.263 \| good	1.072 \| good	0.256 \| good
2025-06-08T19:00:00.000Z	52 \| moderate	10.481 \| good	46.329 \| good	39.228 \| good	0.245 \| good	1.404 \| good	0.27 \| good
2025-06-08T20:00:00.000Z	56 \| moderate	12.205 \| fine	54.327 \| good	38.966 \| good	0.253 \| good	1.457 \| good	0.272 \| good
2025-06-08T21:00:00.000Z	60 \| moderate	13.533 \| fine	60.981 \| fine	44.115 \| good	0.261 \| good	1.51 \| good	0.274 \| good
2025-06-08T22:00:00.000Z	58 \| moderate	12.669 \| fine	56.897 \| fine	46.802 \| good	0.359 \| good	3.888 \| good	0.302 \| good
2025-06-08T23:00:00.000Z	49 \| good	8.845 \| good	38.978 \| good	49.988 \| good	0.377 \| good	3.966 \| good	0.302 \| good
2025-06-09T00:00:00.000Z	52 \| moderate	10.127 \| good	44.8 \| good	46.241 \| good	0.395 \| good	4.044 \| good	0.301 \| good
2025-06-09T01:00:00.000Z	62 \| moderate	14.532 \| fine	64.495 \| fine	42.069 \| good	0.575 \| good	5.769 \| good	0.313 \| good
2025-06-09T02:00:00.000Z	64 \| moderate	15.945 \| fine	71.215 \| fine	40.351 \| good	0.601 \| good	6.176 \| good	0.312 \| good
2025-06-09T03:00:00.000Z	60 \| moderate	14.06 \| fine	63.161 \| fine	37.23 \| good	0.628 \| good	6.584 \| good	0.311 \| good
2025-06-09T04:00:00.000Z	54 \| moderate	10.863 \| good	47.897 \| good	34.106 \| good	0.617 \| good	6.696 \| good	0.321 \| good
2025-06-09T05:00:00.000Z	52 \| moderate	9.905 \| good	44.163 \| good	33.166 \| good	0.651 \| good	7.07 \| good	0.32 \| good
2025-06-09T06:00:00.000Z	62 \| moderate	14.983 \| fine	15.316 \| good	29.563 \| good	0.687 \| good	7.412 \| good	0.318 \| good
2025-06-09T07:00:00.000Z	44 \| good	8.473 \| good	37.026 \| good	34.963 \| good	0.623 \| good	5.176 \| good	0.307 \| good
2025-06-09T08:00:00.000Z	44 \| good	7.873 \| good	34.441 \| good	33.434 \| good	0.68 \| good	5.354 \| good	0.304 \| good
2025-06-09T09:00:00.000Z	44 \| good	7.889 \| good	34.37 \| good	23.562 \| good	0.736 \| good	5.532 \| good	0.301 \| good
2025-06-09T10:00:00.000Z	44 \| good	7.685 \| good	33.907 \| good	21.824 \| good	0.699 \| good	2.19 \| good	0.268 \| good
2025-06-09T11:00:00.000Z	38 \| good	7.13 \| good	31.489 \| good	24.41 \| good	0.732 \| good	2.373 \| good	0.271 \| good

Live air quality index in Holyoke, Massachusetts today

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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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?

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