What are the current PM10 levels at Holden, Massachusetts?

The current PM10 levels in Holden, Massachusetts are 15.183 μg/m3.

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

The current sulfur dioxide (SO2) levels in Holden, Massachusetts are 0.447 ppb.

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

The current ozone (O3) levels at Holden, Massachusetts is 39.734 ppm.

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

The current nitrogen dioxide (NO2) levels at Holden, Massachusetts is 10.71 ppb.

Real-time air quality index in Holden, Massachusetts today

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

The measured PM2.5 levels in Holden, Massachusetts at present are 4.345 μg/m3.

Stay updated with real-time air quality in Holden, 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

Holden, Massachusetts

Last updated: ... (Local time)

Common air pollutants in Holden, Massachusetts

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

5.60 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

28.28 μg/m³

155

255

425

605+

Ozone (O₃)

38.46 ppb

201

201+

Sulfur Dioxide (SO₂)

0.52 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

21.90 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.32 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Holden, Massachusetts

Get Live Pollen Counts

Holden, Massachusetts

Scroll To Air Quality Map

Track live Holden, Massachusetts air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-12-27T00:00:00.000Z	29 \| good	3.713 \| good	13.14 \| good	31.361 \| good	0.598 \| good	17.953 \| good	0.201 \| good
2025-12-27T01:00:00.000Z	25 \| good	3.81 \| good	13.111 \| good	27.229 \| good	0.598 \| good	18.92 \| good	0.3 \| good
2025-12-27T02:00:00.000Z	26 \| good	4.108 \| good	12.063 \| good	28.068 \| good	0.499 \| good	14.056 \| good	0.2 \| good
2025-12-27T03:00:00.000Z	24 \| good	4.404 \| good	10.086 \| good	25.561 \| good	0.499 \| good	14.047 \| good	0.2 \| good
2025-12-27T04:00:00.000Z	23 \| good	4.307 \| good	8.153 \| good	25.494 \| good	0.499 \| good	13.035 \| good	0.2 \| good
2025-12-27T05:00:00.000Z	25 \| good	4.004 \| good	7.113 \| good	26.574 \| good	0.4 \| good	8.023 \| good	0.2 \| good
2025-12-27T06:00:00.000Z	25 \| good	3.812 \| good	6.166 \| good	26.618 \| good	0.399 \| good	8.998 \| good	0.2 \| good
2025-12-27T07:00:00.000Z	26 \| good	3.806 \| good	6.033 \| good	28.303 \| good	0.399 \| good	8.991 \| good	0.2 \| good
2025-12-27T08:00:00.000Z	27 \| good	3.408 \| good	5.093 \| good	28.554 \| good	0.399 \| good	8.99 \| good	0.2 \| good
2025-12-27T09:00:00.000Z	25 \| good	3.409 \| good	5.057 \| good	26.834 \| good	0.499 \| good	11.01 \| good	0.2 \| good
2025-12-27T10:00:00.000Z	24 \| good	3.607 \| good	5.074 \| good	25.58 \| good	0.499 \| good	12.976 \| good	0.299 \| good
2025-12-27T11:00:00.000Z	27 \| good	3.605 \| good	5.05 \| good	29.322 \| good	0.498 \| good	10.933 \| good	0.2 \| good
2025-12-27T12:00:00.000Z	28 \| good	3.602 \| good	5.012 \| good	30.217 \| good	0.498 \| good	10.93 \| good	0.2 \| good
2025-12-27T13:00:00.000Z	30 \| good	3.604 \| good	6.076 \| good	31.506 \| good	0.499 \| good	9.947 \| good	0.2 \| good
2025-12-27T14:00:00.000Z	28 \| good	3.599 \| good	7.032 \| good	30.295 \| good	0.499 \| good	7.967 \| good	0.399 \| good
2025-12-27T15:00:00.000Z	31 \| good	3.494 \| good	6.995 \| good	32.788 \| good	0.499 \| good	7.961 \| good	0.399 \| good
2025-12-27T16:00:00.000Z	30 \| good	3.295 \| good	7.005 \| good	31.733 \| good	0.399 \| good	5.979 \| good	0.2 \| good
2025-12-27T17:00:00.000Z	31 \| good	3.198 \| good	6.016 \| good	33.845 \| good	0.399 \| good	6.97 \| good	0.3 \| good
2025-12-27T18:00:00.000Z	31 \| good	3.097 \| good	5.998 \| good	32.831 \| good	0.499 \| good	6.972 \| good	0.2 \| good
2025-12-27T19:00:00.000Z	31 \| good	3.098 \| good	5.985 \| good	32.84 \| good	0.499 \| good	5.986 \| good	0.2 \| good
2025-12-27T20:00:00.000Z	30 \| good	3.097 \| good	5.991 \| good	32.167 \| good	0.499 \| good	8.965 \| good	0.201 \| good
2025-12-27T21:00:00.000Z	31 \| good	3.596 \| good	7.993 \| good	33.835 \| good	0.498 \| good	13.891 \| good	0.3 \| good
2025-12-27T22:00:00.000Z	30 \| good	3.595 \| good	6.984 \| good	32.359 \| good	0.498 \| good	12.962 \| good	0.4 \| good
2025-12-27T23:00:00.000Z	31 \| good	3.799 \| good	7.114 \| good	33.339 \| good	0.499 \| good	11.155 \| good	0.301 \| good
2025-12-28T00:00:00.000Z	28 \| good	4.216 \| good	6.155 \| good	30.251 \| good	0.499 \| good	15.995 \| good	0.401 \| good
2025-12-28T01:00:00.000Z	30 \| good	4.42 \| good	6.256 \| good	32.148 \| good	0.499 \| good	13.01 \| good	0.501 \| good
2025-12-28T02:00:00.000Z	29 \| good	4.812 \| good	7.173 \| good	30.991 \| good	0.599 \| good	24.874 \| good	0.401 \| good
2025-12-28T03:00:00.000Z	52 \| moderate	10.004 \| good	44.243 \| good	27.451 \| good	0.597 \| good	9.789 \| good	0.215 \| good
2025-12-28T04:00:00.000Z	30 \| good	4.646 \| good	6.256 \| good	32.49 \| good	0.599 \| good	8.039 \| good	0.301 \| good
2025-12-28T05:00:00.000Z	28 \| good	4.16 \| good	6.156 \| good	30.277 \| good	0.46 \| good	19.991 \| good	0.301 \| good
2025-12-28T06:00:00.000Z	27 \| good	3.97 \| good	5.24 \| good	29.293 \| good	0.4 \| good	20.008 \| good	0.201 \| good
2025-12-28T07:00:00.000Z	27 \| good	3.957 \| good	5.245 \| good	28.875 \| good	0.4 \| good	20.014 \| good	0.201 \| good
2025-12-28T08:00:00.000Z	28 \| good	3.754 \| good	5.217 \| good	30.399 \| good	0.399 \| good	23.757 \| good	0.201 \| good
2025-12-28T09:00:00.000Z	32 \| good	4.3 \| good	6.217 \| good	26.649 \| good	0.897 \| good	33.91 \| good	0.4 \| good
2025-12-28T10:00:00.000Z	41 \| good	4.877 \| good	7.107 \| good	28.24 \| good	1.196 \| good	42.821 \| good	0.4 \| good
2025-12-28T11:00:00.000Z	39 \| good	4.869 \| good	6.328 \| good	21.724 \| good	0.698 \| good	40.84 \| good	0.401 \| good
2025-12-28T12:00:00.000Z	42 \| good	4.856 \| good	6.298 \| good	29.543 \| good	0.897 \| good	44.811 \| good	0.301 \| good
2025-12-28T13:00:00.000Z	42 \| good	4.848 \| good	6.252 \| good	25.821 \| good	0.897 \| good	44.799 \| good	0.301 \| good
2025-12-28T14:00:00.000Z	42 \| good	4.831 \| good	7.167 \| good	23.451 \| good	1.096 \| good	44.85 \| good	0.5 \| good
2025-12-28T15:00:00.000Z	30 \| good	3.53 \| good	6.179 \| good	31.721 \| good	0.499 \| good	13.01 \| good	0.301 \| good
2025-12-28T16:00:00.000Z	28 \| good	3.636 \| good	8.44 \| good	30.337 \| good	0.698 \| good	22.923 \| good	0.201 \| good
2025-12-28T17:00:00.000Z	34 \| good	3.236 \| good	7.225 \| good	36.893 \| good	0.598 \| good	12.965 \| good	0.201 \| good
2025-12-28T18:00:00.000Z	32 \| good	2.929 \| good	7.051 \| good	35.378 \| good	0.499 \| good	7.993 \| good	0.2 \| good
2025-12-28T19:00:00.000Z	34 \| good	3.329 \| good	9.121 \| good	37.352 \| good	0.499 \| good	9.987 \| good	0.2 \| good
2025-12-28T20:00:00.000Z	33 \| good	3.61 \| good	11.038 \| good	36.064 \| good	0.499 \| good	17.939 \| good	0.201 \| good
2025-12-28T21:00:00.000Z	32 \| good	3.516 \| good	12.061 \| good	35.267 \| good	0.499 \| good	8.055 \| good	0.201 \| good
2025-12-28T22:00:00.000Z	31 \| good	3.539 \| good	14.263 \| good	33.517 \| good	0.598 \| good	25.925 \| good	0.3 \| good
2025-12-28T23:00:00.000Z	35 \| good	5.596 \| good	28.276 \| good	38.463 \| good	0.515 \| good	21.898 \| good	0.324 \| good
2025-12-28T23:00:00.000Z	58 \| moderate	12.757 \| fine	57.016 \| fine	20.991 \| good	1.065 \| good	14.13 \| good	0.255 \| good
2025-12-29T00:00:00.000Z	58 \| moderate	13.476 \| fine	60.108 \| fine	22.445 \| good	1.128 \| good	15.399 \| good	0.268 \| good
2025-12-29T01:00:00.000Z	52 \| moderate	10.231 \| good	45.311 \| good	24.771 \| good	1.521 \| good	17.05 \| good	0.264 \| good
2025-12-29T02:00:00.000Z	60 \| moderate	13.906 \| fine	62.406 \| fine	17.666 \| good	1.913 \| good	18.702 \| good	0.26 \| good
2025-12-29T03:00:00.000Z	66 \| moderate	17.416 \| fine	77.244 \| fine	12.03 \| good	2.306 \| good	20.353 \| good	0.257 \| good
2025-12-29T04:00:00.000Z	66 \| moderate	17.177 \| fine	75.737 \| fine	12.795 \| good	1.949 \| good	18.827 \| good	0.242 \| good
2025-12-29T05:00:00.000Z	60 \| moderate	13.855 \| fine	62.049 \| fine	17.907 \| good	1.593 \| good	17.301 \| good	0.228 \| good
2025-12-29T06:00:00.000Z	44 \| good	8.494 \| good	37.61 \| good	21.729 \| good	1.236 \| good	15.776 \| good	0.214 \| good
2025-12-29T07:00:00.000Z	26 \| good	3.949 \| good	17.067 \| good	28.063 \| good	0.924 \| good	11.233 \| good	0.189 \| good
2025-12-29T08:00:00.000Z	32 \| good	1.722 \| good	7.182 \| good	35.06 \| good	0.613 \| good	6.689 \| good	0.164 \| good
2025-12-29T09:00:00.000Z	33 \| good	1.478 \| good	6.031 \| good	35.512 \| good	0.301 \| good	2.146 \| good	0.139 \| good
2025-12-29T10:00:00.000Z	31 \| good	2.261 \| good	9.18 \| good	33.466 \| good	0.381 \| good	2.646 \| good	0.143 \| good
2025-12-29T11:00:00.000Z	30 \| good	2.532 \| good	10.332 \| good	31.897 \| good	0.46 \| good	3.146 \| good	0.147 \| good
2025-12-29T12:00:00.000Z	28 \| good	2.826 \| good	11.589 \| good	29.871 \| good	0.54 \| good	3.646 \| good	0.151 \| good
2025-12-29T13:00:00.000Z	26 \| good	3.749 \| good	16.332 \| good	27.919 \| good	0.733 \| good	4.534 \| good	0.161 \| good
2025-12-29T14:00:00.000Z	26 \| good	3.683 \| good	16.067 \| good	28.426 \| good	0.926 \| good	5.421 \| good	0.172 \| good
2025-12-29T15:00:00.000Z	26 \| good	4.436 \| good	19.332 \| good	27.518 \| good	1.12 \| good	6.308 \| good	0.182 \| good
2025-12-29T16:00:00.000Z	27 \| good	5.329 \| good	22.861 \| good	26.312 \| good	1.074 \| good	6.788 \| good	0.184 \| good
2025-12-29T17:00:00.000Z	33 \| good	5.67 \| good	24.371 \| good	24.201 \| good	1.029 \| good	7.268 \| good	0.186 \| good
2025-12-29T18:00:00.000Z	38 \| good	6.828 \| good	30.032 \| good	21.136 \| good	0.984 \| good	7.748 \| good	0.189 \| good
2025-12-29T19:00:00.000Z	33 \| good	6.251 \| good	27.611 \| good	23.176 \| good	1.151 \| good	8.926 \| good	0.195 \| good
2025-12-29T20:00:00.000Z	32 \| good	3.262 \| good	14.011 \| good	35.423 \| good	1.318 \| good	10.105 \| good	0.202 \| good
2025-12-29T21:00:00.000Z	35 \| good	1.333 \| good	5.354 \| good	37.535 \| good	1.485 \| good	11.283 \| good	0.208 \| good
2025-12-29T22:00:00.000Z	35 \| good	2.186 \| good	9.116 \| good	37.93 \| good	1.376 \| good	8.765 \| good	0.195 \| good
2025-12-29T23:00:00.000Z	30 \| good	5.247 \| good	22.55 \| good	32.405 \| good	1.267 \| good	6.248 \| good	0.181 \| good
2025-12-30T00:00:00.000Z	38 \| good	6.609 \| good	29.311 \| good	28.377 \| good	1.158 \| good	3.73 \| good	0.168 \| good
2025-12-30T01:00:00.000Z	22 \| good	4 \| good	17.45 \| good	24.347 \| good	0.914 \| good	3.197 \| good	0.168 \| good
2025-12-30T02:00:00.000Z	21 \| good	2.467 \| good	10.067 \| good	22.869 \| good	0.669 \| good	2.664 \| good	0.167 \| good
2025-12-30T03:00:00.000Z	20 \| good	2.364 \| good	9.782 \| good	22.249 \| good	0.424 \| good	2.131 \| good	0.167 \| good
2025-12-30T04:00:00.000Z	23 \| good	1.667 \| good	6.594 \| good	25.271 \| good	0.39 \| good	1.889 \| good	0.16 \| good
2025-12-30T05:00:00.000Z	28 \| good	0.754 \| good	2.741 \| good	29.711 \| good	0.356 \| good	1.646 \| good	0.154 \| good
2025-12-30T06:00:00.000Z	29 \| good	0.427 \| good	1.665 \| good	30.785 \| good	0.322 \| good	1.403 \| good	0.147 \| good
2025-12-30T07:00:00.000Z	30 \| good	0.334 \| good	1.091 \| good	31.726 \| good	0.31 \| good	1.273 \| good	0.144 \| good
2025-12-30T08:00:00.000Z	30 \| good	0.278 \| good	0.967 \| good	31.619 \| good	0.297 \| good	1.142 \| good	0.141 \| good
2025-12-30T09:00:00.000Z	30 \| good	0.244 \| good	0.565 \| good	32.441 \| good	0.285 \| good	1.012 \| good	0.138 \| good
2025-12-30T10:00:00.000Z	30 \| good	0.419 \| good	1.682 \| good	32.396 \| good	0.289 \| good	1.216 \| good	0.14 \| good
2025-12-30T11:00:00.000Z	31 \| good	0.488 \| good	2 \| good	33.045 \| good	0.293 \| good	1.42 \| good	0.141 \| good
2025-12-30T12:00:00.000Z	30 \| good	0.204 \| good	0.621 \| good	31.846 \| good	0.297 \| good	1.624 \| good	0.143 \| good
2025-12-30T13:00:00.000Z	29 \| good	0.35 \| good	1.332 \| good	31.119 \| good	0.268 \| good	1.412 \| good	0.14 \| good
2025-12-30T14:00:00.000Z	29 \| good	0.296 \| good	1.014 \| good	31.332 \| good	0.24 \| good	1.2 \| good	0.138 \| good
2025-12-30T15:00:00.000Z	30 \| good	0.174 \| good	0.53 \| good	32.367 \| good	0.211 \| good	0.988 \| good	0.135 \| good
2025-12-30T16:00:00.000Z	31 \| good	0.08 \| good	0 \| good	34.42 \| good	0.207 \| good	0.96 \| good	0.134 \| good
2025-12-30T17:00:00.000Z	32 \| good	0.285 \| good	0.96 \| good	34.718 \| good	0.204 \| good	0.932 \| good	0.134 \| good
2025-12-30T18:00:00.000Z	32 \| good	0.266 \| good	1 \| good	35.026 \| good	0.201 \| good	0.905 \| good	0.133 \| good
2025-12-30T19:00:00.000Z	33 \| good	1.139 \| good	4.582 \| good	35.982 \| good	0.211 \| good	1.13 \| good	0.134 \| good
2025-12-30T20:00:00.000Z	33 \| good	1.393 \| good	5.618 \| good	35.957 \| good	0.222 \| good	1.355 \| good	0.134 \| good
2025-12-30T21:00:00.000Z	34 \| good	0.717 \| good	2.664 \| good	36.649 \| good	0.233 \| good	1.581 \| good	0.135 \| good
2025-12-30T22:00:00.000Z	33 \| good	0.927 \| good	3.701 \| good	36.389 \| good	0.286 \| good	1.74 \| good	0.135 \| good

Holden

Empower business decisions with accurate air quality data

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

0.24ppm

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 Holden, Massachusetts updated?

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

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

The worst air quality in Holden, Massachusetts was recorded at 10:00:00 on 2025-12-28.

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

The best air quality in Holden, Massachusetts was recorded at 02:00:00 on 2025-12-28.

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

The real-time air quality index in Holden, Massachusetts is 37, currently categorized as Good.

Which pollutant is found most often in Holden, Massachusetts?

The most common pollutant in Holden, Massachusetts is O3.

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

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

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

The measured PM_2.5 levels in Holden, Massachusetts at present are 4.345 μg/m³.

What are the current PM₁₀ levels at Holden, Massachusetts?

The current PM₁₀ levels in Holden, Massachusetts are 15.183 μg/m³.

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

The current carbon monoxide (CO) level in Holden, Massachusetts is 0.243 ppm.

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

The current sulfur dioxide (SO₂) levels in Holden, Massachusetts are 0.447 ppb.

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

The current ozone (O₃) levels at Holden, Massachusetts is 39.734 ppm.

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

The current nitrogen dioxide (NO₂) levels at Holden, Massachusetts is 10.71 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-12-27T00:00:00.000Z	29 \| good	3.713 \| good	13.14 \| good	31.361 \| good	0.598 \| good	17.953 \| good	0.201 \| good
2025-12-27T01:00:00.000Z	25 \| good	3.81 \| good	13.111 \| good	27.229 \| good	0.598 \| good	18.92 \| good	0.3 \| good
2025-12-27T02:00:00.000Z	26 \| good	4.108 \| good	12.063 \| good	28.068 \| good	0.499 \| good	14.056 \| good	0.2 \| good
2025-12-27T03:00:00.000Z	24 \| good	4.404 \| good	10.086 \| good	25.561 \| good	0.499 \| good	14.047 \| good	0.2 \| good
2025-12-27T04:00:00.000Z	23 \| good	4.307 \| good	8.153 \| good	25.494 \| good	0.499 \| good	13.035 \| good	0.2 \| good
2025-12-27T05:00:00.000Z	25 \| good	4.004 \| good	7.113 \| good	26.574 \| good	0.4 \| good	8.023 \| good	0.2 \| good
2025-12-27T06:00:00.000Z	25 \| good	3.812 \| good	6.166 \| good	26.618 \| good	0.399 \| good	8.998 \| good	0.2 \| good
2025-12-27T07:00:00.000Z	26 \| good	3.806 \| good	6.033 \| good	28.303 \| good	0.399 \| good	8.991 \| good	0.2 \| good
2025-12-27T08:00:00.000Z	27 \| good	3.408 \| good	5.093 \| good	28.554 \| good	0.399 \| good	8.99 \| good	0.2 \| good
2025-12-27T09:00:00.000Z	25 \| good	3.409 \| good	5.057 \| good	26.834 \| good	0.499 \| good	11.01 \| good	0.2 \| good
2025-12-27T10:00:00.000Z	24 \| good	3.607 \| good	5.074 \| good	25.58 \| good	0.499 \| good	12.976 \| good	0.299 \| good
2025-12-27T11:00:00.000Z	27 \| good	3.605 \| good	5.05 \| good	29.322 \| good	0.498 \| good	10.933 \| good	0.2 \| good
2025-12-27T12:00:00.000Z	28 \| good	3.602 \| good	5.012 \| good	30.217 \| good	0.498 \| good	10.93 \| good	0.2 \| good
2025-12-27T13:00:00.000Z	30 \| good	3.604 \| good	6.076 \| good	31.506 \| good	0.499 \| good	9.947 \| good	0.2 \| good
2025-12-27T14:00:00.000Z	28 \| good	3.599 \| good	7.032 \| good	30.295 \| good	0.499 \| good	7.967 \| good	0.399 \| good
2025-12-27T15:00:00.000Z	31 \| good	3.494 \| good	6.995 \| good	32.788 \| good	0.499 \| good	7.961 \| good	0.399 \| good
2025-12-27T16:00:00.000Z	30 \| good	3.295 \| good	7.005 \| good	31.733 \| good	0.399 \| good	5.979 \| good	0.2 \| good
2025-12-27T17:00:00.000Z	31 \| good	3.198 \| good	6.016 \| good	33.845 \| good	0.399 \| good	6.97 \| good	0.3 \| good
2025-12-27T18:00:00.000Z	31 \| good	3.097 \| good	5.998 \| good	32.831 \| good	0.499 \| good	6.972 \| good	0.2 \| good
2025-12-27T19:00:00.000Z	31 \| good	3.098 \| good	5.985 \| good	32.84 \| good	0.499 \| good	5.986 \| good	0.2 \| good
2025-12-27T20:00:00.000Z	30 \| good	3.097 \| good	5.991 \| good	32.167 \| good	0.499 \| good	8.965 \| good	0.201 \| good
2025-12-27T21:00:00.000Z	31 \| good	3.596 \| good	7.993 \| good	33.835 \| good	0.498 \| good	13.891 \| good	0.3 \| good
2025-12-27T22:00:00.000Z	30 \| good	3.595 \| good	6.984 \| good	32.359 \| good	0.498 \| good	12.962 \| good	0.4 \| good
2025-12-27T23:00:00.000Z	31 \| good	3.799 \| good	7.114 \| good	33.339 \| good	0.499 \| good	11.155 \| good	0.301 \| good
2025-12-28T00:00:00.000Z	28 \| good	4.216 \| good	6.155 \| good	30.251 \| good	0.499 \| good	15.995 \| good	0.401 \| good
2025-12-28T01:00:00.000Z	30 \| good	4.42 \| good	6.256 \| good	32.148 \| good	0.499 \| good	13.01 \| good	0.501 \| good
2025-12-28T02:00:00.000Z	29 \| good	4.812 \| good	7.173 \| good	30.991 \| good	0.599 \| good	24.874 \| good	0.401 \| good
2025-12-28T03:00:00.000Z	52 \| moderate	10.004 \| good	44.243 \| good	27.451 \| good	0.597 \| good	9.789 \| good	0.215 \| good
2025-12-28T04:00:00.000Z	30 \| good	4.646 \| good	6.256 \| good	32.49 \| good	0.599 \| good	8.039 \| good	0.301 \| good
2025-12-28T05:00:00.000Z	28 \| good	4.16 \| good	6.156 \| good	30.277 \| good	0.46 \| good	19.991 \| good	0.301 \| good
2025-12-28T06:00:00.000Z	27 \| good	3.97 \| good	5.24 \| good	29.293 \| good	0.4 \| good	20.008 \| good	0.201 \| good
2025-12-28T07:00:00.000Z	27 \| good	3.957 \| good	5.245 \| good	28.875 \| good	0.4 \| good	20.014 \| good	0.201 \| good
2025-12-28T08:00:00.000Z	28 \| good	3.754 \| good	5.217 \| good	30.399 \| good	0.399 \| good	23.757 \| good	0.201 \| good
2025-12-28T09:00:00.000Z	32 \| good	4.3 \| good	6.217 \| good	26.649 \| good	0.897 \| good	33.91 \| good	0.4 \| good
2025-12-28T10:00:00.000Z	41 \| good	4.877 \| good	7.107 \| good	28.24 \| good	1.196 \| good	42.821 \| good	0.4 \| good
2025-12-28T11:00:00.000Z	39 \| good	4.869 \| good	6.328 \| good	21.724 \| good	0.698 \| good	40.84 \| good	0.401 \| good
2025-12-28T12:00:00.000Z	42 \| good	4.856 \| good	6.298 \| good	29.543 \| good	0.897 \| good	44.811 \| good	0.301 \| good
2025-12-28T13:00:00.000Z	42 \| good	4.848 \| good	6.252 \| good	25.821 \| good	0.897 \| good	44.799 \| good	0.301 \| good
2025-12-28T14:00:00.000Z	42 \| good	4.831 \| good	7.167 \| good	23.451 \| good	1.096 \| good	44.85 \| good	0.5 \| good
2025-12-28T15:00:00.000Z	30 \| good	3.53 \| good	6.179 \| good	31.721 \| good	0.499 \| good	13.01 \| good	0.301 \| good
2025-12-28T16:00:00.000Z	28 \| good	3.636 \| good	8.44 \| good	30.337 \| good	0.698 \| good	22.923 \| good	0.201 \| good
2025-12-28T17:00:00.000Z	34 \| good	3.236 \| good	7.225 \| good	36.893 \| good	0.598 \| good	12.965 \| good	0.201 \| good
2025-12-28T18:00:00.000Z	32 \| good	2.929 \| good	7.051 \| good	35.378 \| good	0.499 \| good	7.993 \| good	0.2 \| good
2025-12-28T19:00:00.000Z	34 \| good	3.329 \| good	9.121 \| good	37.352 \| good	0.499 \| good	9.987 \| good	0.2 \| good
2025-12-28T20:00:00.000Z	33 \| good	3.61 \| good	11.038 \| good	36.064 \| good	0.499 \| good	17.939 \| good	0.201 \| good
2025-12-28T21:00:00.000Z	32 \| good	3.516 \| good	12.061 \| good	35.267 \| good	0.499 \| good	8.055 \| good	0.201 \| good
2025-12-28T22:00:00.000Z	31 \| good	3.539 \| good	14.263 \| good	33.517 \| good	0.598 \| good	25.925 \| good	0.3 \| good
2025-12-28T23:00:00.000Z	35 \| good	5.596 \| good	28.276 \| good	38.463 \| good	0.515 \| good	21.898 \| good	0.324 \| good
2025-12-28T23:00:00.000Z	58 \| moderate	12.757 \| fine	57.016 \| fine	20.991 \| good	1.065 \| good	14.13 \| good	0.255 \| good
2025-12-29T00:00:00.000Z	58 \| moderate	13.476 \| fine	60.108 \| fine	22.445 \| good	1.128 \| good	15.399 \| good	0.268 \| good
2025-12-29T01:00:00.000Z	52 \| moderate	10.231 \| good	45.311 \| good	24.771 \| good	1.521 \| good	17.05 \| good	0.264 \| good
2025-12-29T02:00:00.000Z	60 \| moderate	13.906 \| fine	62.406 \| fine	17.666 \| good	1.913 \| good	18.702 \| good	0.26 \| good
2025-12-29T03:00:00.000Z	66 \| moderate	17.416 \| fine	77.244 \| fine	12.03 \| good	2.306 \| good	20.353 \| good	0.257 \| good
2025-12-29T04:00:00.000Z	66 \| moderate	17.177 \| fine	75.737 \| fine	12.795 \| good	1.949 \| good	18.827 \| good	0.242 \| good
2025-12-29T05:00:00.000Z	60 \| moderate	13.855 \| fine	62.049 \| fine	17.907 \| good	1.593 \| good	17.301 \| good	0.228 \| good
2025-12-29T06:00:00.000Z	44 \| good	8.494 \| good	37.61 \| good	21.729 \| good	1.236 \| good	15.776 \| good	0.214 \| good
2025-12-29T07:00:00.000Z	26 \| good	3.949 \| good	17.067 \| good	28.063 \| good	0.924 \| good	11.233 \| good	0.189 \| good
2025-12-29T08:00:00.000Z	32 \| good	1.722 \| good	7.182 \| good	35.06 \| good	0.613 \| good	6.689 \| good	0.164 \| good
2025-12-29T09:00:00.000Z	33 \| good	1.478 \| good	6.031 \| good	35.512 \| good	0.301 \| good	2.146 \| good	0.139 \| good
2025-12-29T10:00:00.000Z	31 \| good	2.261 \| good	9.18 \| good	33.466 \| good	0.381 \| good	2.646 \| good	0.143 \| good
2025-12-29T11:00:00.000Z	30 \| good	2.532 \| good	10.332 \| good	31.897 \| good	0.46 \| good	3.146 \| good	0.147 \| good
2025-12-29T12:00:00.000Z	28 \| good	2.826 \| good	11.589 \| good	29.871 \| good	0.54 \| good	3.646 \| good	0.151 \| good
2025-12-29T13:00:00.000Z	26 \| good	3.749 \| good	16.332 \| good	27.919 \| good	0.733 \| good	4.534 \| good	0.161 \| good
2025-12-29T14:00:00.000Z	26 \| good	3.683 \| good	16.067 \| good	28.426 \| good	0.926 \| good	5.421 \| good	0.172 \| good
2025-12-29T15:00:00.000Z	26 \| good	4.436 \| good	19.332 \| good	27.518 \| good	1.12 \| good	6.308 \| good	0.182 \| good
2025-12-29T16:00:00.000Z	27 \| good	5.329 \| good	22.861 \| good	26.312 \| good	1.074 \| good	6.788 \| good	0.184 \| good
2025-12-29T17:00:00.000Z	33 \| good	5.67 \| good	24.371 \| good	24.201 \| good	1.029 \| good	7.268 \| good	0.186 \| good
2025-12-29T18:00:00.000Z	38 \| good	6.828 \| good	30.032 \| good	21.136 \| good	0.984 \| good	7.748 \| good	0.189 \| good
2025-12-29T19:00:00.000Z	33 \| good	6.251 \| good	27.611 \| good	23.176 \| good	1.151 \| good	8.926 \| good	0.195 \| good
2025-12-29T20:00:00.000Z	32 \| good	3.262 \| good	14.011 \| good	35.423 \| good	1.318 \| good	10.105 \| good	0.202 \| good
2025-12-29T21:00:00.000Z	35 \| good	1.333 \| good	5.354 \| good	37.535 \| good	1.485 \| good	11.283 \| good	0.208 \| good
2025-12-29T22:00:00.000Z	35 \| good	2.186 \| good	9.116 \| good	37.93 \| good	1.376 \| good	8.765 \| good	0.195 \| good
2025-12-29T23:00:00.000Z	30 \| good	5.247 \| good	22.55 \| good	32.405 \| good	1.267 \| good	6.248 \| good	0.181 \| good
2025-12-30T00:00:00.000Z	38 \| good	6.609 \| good	29.311 \| good	28.377 \| good	1.158 \| good	3.73 \| good	0.168 \| good
2025-12-30T01:00:00.000Z	22 \| good	4 \| good	17.45 \| good	24.347 \| good	0.914 \| good	3.197 \| good	0.168 \| good
2025-12-30T02:00:00.000Z	21 \| good	2.467 \| good	10.067 \| good	22.869 \| good	0.669 \| good	2.664 \| good	0.167 \| good
2025-12-30T03:00:00.000Z	20 \| good	2.364 \| good	9.782 \| good	22.249 \| good	0.424 \| good	2.131 \| good	0.167 \| good
2025-12-30T04:00:00.000Z	23 \| good	1.667 \| good	6.594 \| good	25.271 \| good	0.39 \| good	1.889 \| good	0.16 \| good
2025-12-30T05:00:00.000Z	28 \| good	0.754 \| good	2.741 \| good	29.711 \| good	0.356 \| good	1.646 \| good	0.154 \| good
2025-12-30T06:00:00.000Z	29 \| good	0.427 \| good	1.665 \| good	30.785 \| good	0.322 \| good	1.403 \| good	0.147 \| good
2025-12-30T07:00:00.000Z	30 \| good	0.334 \| good	1.091 \| good	31.726 \| good	0.31 \| good	1.273 \| good	0.144 \| good
2025-12-30T08:00:00.000Z	30 \| good	0.278 \| good	0.967 \| good	31.619 \| good	0.297 \| good	1.142 \| good	0.141 \| good
2025-12-30T09:00:00.000Z	30 \| good	0.244 \| good	0.565 \| good	32.441 \| good	0.285 \| good	1.012 \| good	0.138 \| good
2025-12-30T10:00:00.000Z	30 \| good	0.419 \| good	1.682 \| good	32.396 \| good	0.289 \| good	1.216 \| good	0.14 \| good
2025-12-30T11:00:00.000Z	31 \| good	0.488 \| good	2 \| good	33.045 \| good	0.293 \| good	1.42 \| good	0.141 \| good
2025-12-30T12:00:00.000Z	30 \| good	0.204 \| good	0.621 \| good	31.846 \| good	0.297 \| good	1.624 \| good	0.143 \| good
2025-12-30T13:00:00.000Z	29 \| good	0.35 \| good	1.332 \| good	31.119 \| good	0.268 \| good	1.412 \| good	0.14 \| good
2025-12-30T14:00:00.000Z	29 \| good	0.296 \| good	1.014 \| good	31.332 \| good	0.24 \| good	1.2 \| good	0.138 \| good
2025-12-30T15:00:00.000Z	30 \| good	0.174 \| good	0.53 \| good	32.367 \| good	0.211 \| good	0.988 \| good	0.135 \| good
2025-12-30T16:00:00.000Z	31 \| good	0.08 \| good	0 \| good	34.42 \| good	0.207 \| good	0.96 \| good	0.134 \| good
2025-12-30T17:00:00.000Z	32 \| good	0.285 \| good	0.96 \| good	34.718 \| good	0.204 \| good	0.932 \| good	0.134 \| good
2025-12-30T18:00:00.000Z	32 \| good	0.266 \| good	1 \| good	35.026 \| good	0.201 \| good	0.905 \| good	0.133 \| good
2025-12-30T19:00:00.000Z	33 \| good	1.139 \| good	4.582 \| good	35.982 \| good	0.211 \| good	1.13 \| good	0.134 \| good
2025-12-30T20:00:00.000Z	33 \| good	1.393 \| good	5.618 \| good	35.957 \| good	0.222 \| good	1.355 \| good	0.134 \| good
2025-12-30T21:00:00.000Z	34 \| good	0.717 \| good	2.664 \| good	36.649 \| good	0.233 \| good	1.581 \| good	0.135 \| good
2025-12-30T22:00:00.000Z	33 \| good	0.927 \| good	3.701 \| good	36.389 \| good	0.286 \| good	1.74 \| good	0.135 \| good

Real-time air quality index in Holden, Massachusetts today

Common air pollutants in Holden, Massachusetts

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Holden, Massachusetts air quality forecast and history

Empower business decisions with accurate air quality data

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

Air quality in nearby cities

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Leicester, Massachusetts

Shrewsbury, Massachusetts

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Clinton, Massachusetts

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Air quality levels in US

Frequently asked questions

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

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

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

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

Which pollutant is found most often in Holden, Massachusetts?

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

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

What are the current PM10 levels at Holden, Massachusetts?

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

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

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

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

What are the current PM₁₀ levels at Holden, Massachusetts?

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

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

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