What are the current PM10 levels at Holden, Massachusetts?

The current PM10 levels in Holden, Massachusetts are 16.119 μg/m3.

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

The current sulfur dioxide (SO2) levels in Holden, Massachusetts are 0.658 ppb.

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

The current ozone (O3) levels at Holden, Massachusetts is 32.33 ppm.

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

The current nitrogen dioxide (NO2) levels at Holden, Massachusetts is 1.452 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 1.688 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)

1.41 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

6.16 μg/m³

155

255

425

605+

Ozone (O₃)

32.03 ppb

201

201+

Sulfur Dioxide (SO₂)

0.66 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

1.43 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.12 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

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
2026-10-04T01:00:00.000Z	33 \| good	5.708 \| good	15.36 \| good	21.465 \| good	0.518 \| good	8.846 \| good	0.281 \| good
2026-10-04T02:00:00.000Z	33 \| good	5.856 \| good	18.658 \| good	18.621 \| good	0.498 \| good	10.017 \| good	0.296 \| good
2026-10-04T03:00:00.000Z	27 \| good	4.873 \| good	21.257 \| good	13.711 \| good	0.496 \| good	13.162 \| good	0.224 \| good
2026-10-04T04:00:00.000Z	44 \| good	7.858 \| good	17.526 \| good	16.39 \| good	0.497 \| good	11.774 \| good	0.377 \| good
2026-10-04T05:00:00.000Z	44 \| good	7.545 \| good	18.649 \| good	16.479 \| good	0.497 \| good	9.391 \| good	0.382 \| good
2026-10-04T06:00:00.000Z	38 \| good	6.631 \| good	19.612 \| good	14.541 \| good	0.498 \| good	7.335 \| good	0.322 \| good
2026-10-04T07:00:00.000Z	33 \| good	6.306 \| good	14.312 \| good	15.42 \| good	0.499 \| good	8.302 \| good	0.316 \| good
2026-10-04T08:00:00.000Z	33 \| good	5.918 \| good	14.572 \| good	13.324 \| good	0.471 \| good	9.478 \| good	0.297 \| good
2026-10-04T09:00:00.000Z	33 \| good	6.182 \| good	13.613 \| good	14.233 \| good	0.481 \| good	6.541 \| good	0.222 \| good
2026-10-04T10:00:00.000Z	38 \| good	7.407 \| good	21.08 \| good	13.599 \| good	0.48 \| good	3.621 \| good	0.22 \| good
2026-10-04T11:00:00.000Z	33 \| good	5.965 \| good	13.745 \| good	12.325 \| good	0.542 \| good	2.263 \| good	0.227 \| good
2026-10-04T12:00:00.000Z	38 \| good	7.493 \| good	22.958 \| good	11.578 \| good	0.615 \| good	2.308 \| good	0.223 \| good
2026-10-04T13:00:00.000Z	14 \| good	0.779 \| good	2.999 \| good	14.884 \| good	0.449 \| good	4.86 \| good	0.196 \| good
2026-10-04T14:00:00.000Z	33 \| good	6.378 \| good	16.248 \| good	11.665 \| good	0.497 \| good	2.186 \| good	0.199 \| good
2026-10-04T15:00:00.000Z	33 \| good	5.518 \| good	11.065 \| good	11.954 \| good	0.601 \| good	2.003 \| good	0.185 \| good
2026-10-04T16:00:00.000Z	27 \| good	4.835 \| good	12.106 \| good	16.604 \| good	0.606 \| good	2.102 \| good	0.185 \| good
2026-10-04T17:00:00.000Z	22 \| good	4.435 \| good	9.959 \| good	17.997 \| good	0.482 \| good	1.941 \| good	0.193 \| good
2026-10-04T18:00:00.000Z	22 \| good	3.8 \| good	11.106 \| good	22.099 \| good	0.499 \| good	3.244 \| good	0.193 \| good
2026-10-04T19:00:00.000Z	22 \| good	3.548 \| good	12.039 \| good	22.26 \| good	0.481 \| good	3.479 \| good	0.187 \| good
2026-10-04T20:00:00.000Z	20 \| good	3.43 \| good	8.846 \| good	21.848 \| good	0.489 \| good	4.103 \| good	0.194 \| good
2026-10-04T21:00:00.000Z	22 \| good	3.537 \| good	9.218 \| good	21.089 \| good	0.525 \| good	3.517 \| good	0.194 \| good
2026-10-04T22:00:00.000Z	22 \| good	3.782 \| good	10.614 \| good	21.801 \| good	0.507 \| good	3.067 \| good	0.194 \| good
2026-10-04T23:00:00.000Z	22 \| good	4.135 \| good	10.069 \| good	22.265 \| good	0.499 \| good	3.892 \| good	0.194 \| good
2026-10-05T00:00:00.000Z	27 \| good	4.58 \| good	11.694 \| good	20.938 \| good	0.486 \| good	6.429 \| good	0.199 \| good
2026-10-05T01:00:00.000Z	27 \| good	4.665 \| good	15.248 \| good	18.583 \| good	0.479 \| good	5.55 \| good	0.206 \| good
2026-10-05T02:00:00.000Z	22 \| good	4.404 \| good	13.972 \| good	16.578 \| good	0.538 \| good	6.245 \| good	0.207 \| good
2026-10-05T03:00:00.000Z	16 \| good	2.883 \| good	11.73 \| good	9.166 \| good	0.562 \| good	14.649 \| good	0.23 \| good
2026-10-05T04:00:00.000Z	27 \| good	4.893 \| good	12.329 \| good	12.25 \| good	0.518 \| good	4.768 \| good	0.202 \| good
2026-10-05T05:00:00.000Z	27 \| good	4.904 \| good	15.611 \| good	13.348 \| good	0.482 \| good	2.788 \| good	0.193 \| good
2026-10-05T06:00:00.000Z	27 \| good	4.974 \| good	17.035 \| good	13.474 \| good	0.5 \| good	4.01 \| good	0.193 \| good
2026-10-05T07:00:00.000Z	27 \| good	5.11 \| good	13.783 \| good	12.167 \| good	0.501 \| good	3.706 \| good	0.192 \| good
2026-10-05T08:00:00.000Z	27 \| good	5.485 \| good	14.485 \| good	11.402 \| good	0.617 \| good	2.764 \| good	0.128 \| good
2026-10-05T09:00:00.000Z	27 \| good	5.26 \| good	13.701 \| good	11.04 \| good	0.637 \| good	2.621 \| good	0.135 \| good
2026-10-05T10:00:00.000Z	27 \| good	5.294 \| good	11.823 \| good	10.286 \| good	0.23 \| good	4.643 \| good	0.23 \| good
2026-10-05T11:00:00.000Z	27 \| good	5.047 \| good	10.679 \| good	14.758 \| good	0.23 \| good	4.167 \| good	0.237 \| good
2026-10-05T12:00:00.000Z	27 \| good	4.571 \| good	11.688 \| good	13.319 \| good	0.236 \| good	5.877 \| good	0.237 \| good
2026-10-05T13:00:00.000Z	27 \| good	5.11 \| good	13.292 \| good	15.047 \| good	0.236 \| good	4.559 \| good	0.216 \| good
2026-10-05T14:00:00.000Z	27 \| good	4.58 \| good	13.082 \| good	14.099 \| good	0.245 \| good	3.624 \| good	0.214 \| good
2026-10-05T15:00:00.000Z	22 \| good	4.248 \| good	13.135 \| good	19.594 \| good	0.244 \| good	2.734 \| good	0.214 \| good
2026-10-05T16:00:00.000Z	22 \| good	4.132 \| good	9.212 \| good	18.657 \| good	0.245 \| good	2.669 \| good	0.214 \| good
2026-10-05T17:00:00.000Z	23 \| good	3.57 \| good	8.992 \| good	24.932 \| good	0.68 \| good	1.173 \| good	0.215 \| good
2026-10-05T18:00:00.000Z	24 \| good	3.268 \| good	9.079 \| good	26.215 \| good	0.252 \| good	1.743 \| good	0.201 \| good
2026-10-05T19:00:00.000Z	26 \| good	2.706 \| good	9.764 \| good	28.022 \| good	0.239 \| good	1.88 \| good	0.122 \| good
2026-10-05T20:00:00.000Z	29 \| good	2.283 \| good	8.017 \| good	30.573 \| good	0.252 \| good	1.828 \| good	0.122 \| good
2026-10-05T21:00:00.000Z	28 \| good	1.645 \| good	9.387 \| good	30.447 \| good	0.24 \| good	1.443 \| good	0.194 \| good
2026-10-05T22:00:00.000Z	30 \| good	1.688 \| good	16.119 \| good	32.33 \| good	0.658 \| good	1.452 \| good	0.123 \| good
2026-10-05T23:00:00.000Z	30 \| good	1.345 \| good	8.278 \| good	32.291 \| good	0.651 \| good	3.267 \| good	0.13 \| good
2026-10-06T00:00:00.000Z	30 \| good	1.405 \| good	6.16 \| good	32.034 \| good	0.655 \| good	1.429 \| good	0.123 \| good
2026-10-06T00:00:00.000Z	30 \| good	1.405 \| good	6.16 \| good	32.034 \| good	0.655 \| good	1.429 \| good	0.123 \| good
2026-10-06T00:00:00.000Z	19 \| good	0.564 \| good	2 \| good	21.239 \| good	0.292 \| good	1.719 \| good	0.132 \| good
2026-10-06T01:00:00.000Z	17 \| good	0.521 \| good	2 \| good	18.159 \| good	0.279 \| good	1.81 \| good	0.134 \| good
2026-10-06T02:00:00.000Z	13 \| good	0.282 \| good	0.757 \| good	14.028 \| good	0.255 \| good	1.847 \| good	0.135 \| good
2026-10-06T03:00:00.000Z	14 \| good	0.385 \| good	1.478 \| good	14.781 \| good	0.222 \| good	1.805 \| good	0.137 \| good
2026-10-06T04:00:00.000Z	13 \| good	0.468 \| good	1.756 \| good	13.523 \| good	0.186 \| good	1.583 \| good	0.138 \| good
2026-10-06T05:00:00.000Z	12 \| good	0.42 \| good	1.756 \| good	12.953 \| good	0.162 \| good	1.445 \| good	0.138 \| good
2026-10-06T06:00:00.000Z	14 \| good	0.305 \| good	1.06 \| good	14.503 \| good	0.15 \| good	1.41 \| good	0.137 \| good
2026-10-06T07:00:00.000Z	15 \| good	0.334 \| good	1.091 \| good	15.752 \| good	0.148 \| good	1.396 \| good	0.137 \| good
2026-10-06T08:00:00.000Z	15 \| good	0.37 \| good	1.417 \| good	15.684 \| good	0.15 \| good	1.341 \| good	0.135 \| good
2026-10-06T09:00:00.000Z	19 \| good	0.321 \| good	1.091 \| good	19.97 \| good	0.157 \| good	1.27 \| good	0.134 \| good
2026-10-06T10:00:00.000Z	17 \| good	0.312 \| good	1.091 \| good	18.303 \| good	0.172 \| good	1.257 \| good	0.132 \| good
2026-10-06T11:00:00.000Z	19 \| good	0.232 \| good	0.597 \| good	21.081 \| good	0.195 \| good	1.591 \| good	0.133 \| good
2026-10-06T12:00:00.000Z	19 \| good	0.208 \| good	0.513 \| good	20.416 \| good	0.208 \| good	1.643 \| good	0.136 \| good
2026-10-06T13:00:00.000Z	19 \| good	0.216 \| good	0.649 \| good	20.543 \| good	0.208 \| good	1.004 \| good	0.131 \| good
2026-10-06T14:00:00.000Z	19 \| good	0.424 \| good	1.953 \| good	21.179 \| good	0.201 \| good	0.732 \| good	0.129 \| good
2026-10-06T15:00:00.000Z	21 \| good	0.444 \| good	1.948 \| good	23.44 \| good	0.202 \| good	0.591 \| good	0.129 \| good
2026-10-06T16:00:00.000Z	25 \| good	0.929 \| good	3.953 \| good	26.907 \| good	0.218 \| good	0.502 \| good	0.128 \| good
2026-10-06T17:00:00.000Z	26 \| good	0.784 \| good	3 \| good	28.307 \| good	0.247 \| good	0.467 \| good	0.128 \| good
2026-10-06T18:00:00.000Z	29 \| good	0.973 \| good	3.836 \| good	30.505 \| good	0.277 \| good	0.471 \| good	0.129 \| good
2026-10-06T19:00:00.000Z	28 \| good	0.824 \| good	3.087 \| good	30.487 \| good	0.299 \| good	0.495 \| good	0.129 \| good
2026-10-06T20:00:00.000Z	24 \| good	0.846 \| good	3.332 \| good	26.184 \| good	0.305 \| good	0.578 \| good	0.13 \| good
2026-10-06T21:00:00.000Z	27 \| good	0.917 \| good	3.655 \| good	28.872 \| good	0.299 \| good	0.851 \| good	0.133 \| good
2026-10-06T22:00:00.000Z	23 \| good	1.164 \| good	4.435 \| good	25.09 \| good	0.288 \| good	2.167 \| good	0.145 \| good
2026-10-06T23:00:00.000Z	19 \| good	1.75 \| good	7.352 \| good	20.714 \| good	0.296 \| good	4.385 \| good	0.162 \| good
2026-10-07T00:00:00.000Z	19 \| good	0.334 \| good	1.172 \| good	21.049 \| good	0.308 \| good	5.335 \| good	0.169 \| good
2026-10-07T01:00:00.000Z	17 \| good	0.42 \| good	1.47 \| good	18.02 \| good	0.315 \| good	5.249 \| good	0.167 \| good
2026-10-07T02:00:00.000Z	16 \| good	0.499 \| good	1.741 \| good	16.575 \| good	0.322 \| good	4.91 \| good	0.163 \| good
2026-10-07T03:00:00.000Z	18 \| good	0.467 \| good	1.643 \| good	18.795 \| good	0.326 \| good	4.555 \| good	0.16 \| good
2026-10-07T04:00:00.000Z	19 \| good	0.727 \| good	2.677 \| good	20.166 \| good	0.322 \| good	4.099 \| good	0.158 \| good
2026-10-07T05:00:00.000Z	17 \| good	0.75 \| good	2.764 \| good	18.25 \| good	0.321 \| good	3.86 \| good	0.156 \| good
2026-10-07T06:00:00.000Z	18 \| good	0.755 \| good	2.803 \| good	19.366 \| good	0.325 \| good	4.061 \| good	0.156 \| good
2026-10-07T07:00:00.000Z	18 \| good	0.63 \| good	2.224 \| good	19.384 \| good	0.326 \| good	4.836 \| good	0.161 \| good
2026-10-07T08:00:00.000Z	17 \| good	1.343 \| good	5.113 \| good	17.774 \| good	0.327 \| good	6.023 \| good	0.168 \| good
2026-10-07T09:00:00.000Z	16 \| good	1.049 \| good	4.351 \| good	17.135 \| good	0.328 \| good	7.306 \| good	0.177 \| good
2026-10-07T10:00:00.000Z	13 \| good	1.531 \| good	6.102 \| good	13.891 \| good	0.334 \| good	8.6 \| good	0.187 \| good
2026-10-07T11:00:00.000Z	16 \| good	2.81 \| good	11.522 \| good	14.488 \| good	0.365 \| good	9.983 \| good	0.202 \| good
2026-10-07T12:00:00.000Z	16 \| good	3.1 \| good	13.431 \| good	17.374 \| good	0.372 \| good	8.401 \| good	0.213 \| good
2026-10-07T13:00:00.000Z	19 \| good	3.117 \| good	13.425 \| good	19.523 \| good	0.34 \| good	5.354 \| good	0.197 \| good
2026-10-07T14:00:00.000Z	21 \| good	2.875 \| good	11.756 \| good	23.098 \| good	0.368 \| good	2.923 \| good	0.165 \| good
2026-10-07T15:00:00.000Z	23 \| good	3.841 \| good	16.63 \| good	24.977 \| good	0.417 \| good	1.817 \| good	0.154 \| good
2026-10-07T16:00:00.000Z	27 \| good	3.589 \| good	15.753 \| good	28.66 \| good	0.496 \| good	1.322 \| good	0.152 \| good
2026-10-07T17:00:00.000Z	30 \| good	4.356 \| good	19.112 \| good	31.848 \| good	0.586 \| good	1.172 \| good	0.152 \| good
2026-10-07T18:00:00.000Z	31 \| good	5.19 \| good	22.53 \| good	32.505 \| good	0.675 \| good	1.317 \| good	0.155 \| good
2026-10-07T19:00:00.000Z	38 \| good	6.684 \| good	29.933 \| good	31.197 \| good	0.768 \| good	1.748 \| good	0.16 \| good
2026-10-07T20:00:00.000Z	44 \| good	7.846 \| good	34.331 \| good	33.531 \| good	0.851 \| good	2.45 \| good	0.166 \| good
2026-10-07T21:00:00.000Z	44 \| good	7.563 \| good	33.156 \| good	38.165 \| good	0.904 \| good	3.412 \| good	0.173 \| good
2026-10-07T22:00:00.000Z	36 \| good	4.853 \| good	20.962 \| good	38.931 \| good	0.916 \| good	4.694 \| good	0.181 \| good
2026-10-07T23:00:00.000Z	33 \| good	4.061 \| good	17.813 \| good	36.096 \| good	0.936 \| good	5.281 \| good	0.184 \| good

Holden

Empower business decisions with accurate air quality data

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

0.12ppm

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 2026-10-05.

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

The best air quality in Holden, Massachusetts was recorded at 03:00:00 on 2026-10-05.

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

The real-time air quality index in Holden, Massachusetts is 30, 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 1.688 μg/m³.

What are the current PM₁₀ levels at Holden, Massachusetts?

The current PM₁₀ levels in Holden, Massachusetts are 16.119 μg/m³.

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

The current carbon monoxide (CO) level in Holden, Massachusetts is 0.123 ppm.

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

The current sulfur dioxide (SO₂) levels in Holden, Massachusetts are 0.658 ppb.

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

The current ozone (O₃) levels at Holden, Massachusetts is 32.33 ppm.

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

The current nitrogen dioxide (NO₂) levels at Holden, Massachusetts is 1.452 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-10-04T01:00:00.000Z	33 \| good	5.708 \| good	15.36 \| good	21.465 \| good	0.518 \| good	8.846 \| good	0.281 \| good
2026-10-04T02:00:00.000Z	33 \| good	5.856 \| good	18.658 \| good	18.621 \| good	0.498 \| good	10.017 \| good	0.296 \| good
2026-10-04T03:00:00.000Z	27 \| good	4.873 \| good	21.257 \| good	13.711 \| good	0.496 \| good	13.162 \| good	0.224 \| good
2026-10-04T04:00:00.000Z	44 \| good	7.858 \| good	17.526 \| good	16.39 \| good	0.497 \| good	11.774 \| good	0.377 \| good
2026-10-04T05:00:00.000Z	44 \| good	7.545 \| good	18.649 \| good	16.479 \| good	0.497 \| good	9.391 \| good	0.382 \| good
2026-10-04T06:00:00.000Z	38 \| good	6.631 \| good	19.612 \| good	14.541 \| good	0.498 \| good	7.335 \| good	0.322 \| good
2026-10-04T07:00:00.000Z	33 \| good	6.306 \| good	14.312 \| good	15.42 \| good	0.499 \| good	8.302 \| good	0.316 \| good
2026-10-04T08:00:00.000Z	33 \| good	5.918 \| good	14.572 \| good	13.324 \| good	0.471 \| good	9.478 \| good	0.297 \| good
2026-10-04T09:00:00.000Z	33 \| good	6.182 \| good	13.613 \| good	14.233 \| good	0.481 \| good	6.541 \| good	0.222 \| good
2026-10-04T10:00:00.000Z	38 \| good	7.407 \| good	21.08 \| good	13.599 \| good	0.48 \| good	3.621 \| good	0.22 \| good
2026-10-04T11:00:00.000Z	33 \| good	5.965 \| good	13.745 \| good	12.325 \| good	0.542 \| good	2.263 \| good	0.227 \| good
2026-10-04T12:00:00.000Z	38 \| good	7.493 \| good	22.958 \| good	11.578 \| good	0.615 \| good	2.308 \| good	0.223 \| good
2026-10-04T13:00:00.000Z	14 \| good	0.779 \| good	2.999 \| good	14.884 \| good	0.449 \| good	4.86 \| good	0.196 \| good
2026-10-04T14:00:00.000Z	33 \| good	6.378 \| good	16.248 \| good	11.665 \| good	0.497 \| good	2.186 \| good	0.199 \| good
2026-10-04T15:00:00.000Z	33 \| good	5.518 \| good	11.065 \| good	11.954 \| good	0.601 \| good	2.003 \| good	0.185 \| good
2026-10-04T16:00:00.000Z	27 \| good	4.835 \| good	12.106 \| good	16.604 \| good	0.606 \| good	2.102 \| good	0.185 \| good
2026-10-04T17:00:00.000Z	22 \| good	4.435 \| good	9.959 \| good	17.997 \| good	0.482 \| good	1.941 \| good	0.193 \| good
2026-10-04T18:00:00.000Z	22 \| good	3.8 \| good	11.106 \| good	22.099 \| good	0.499 \| good	3.244 \| good	0.193 \| good
2026-10-04T19:00:00.000Z	22 \| good	3.548 \| good	12.039 \| good	22.26 \| good	0.481 \| good	3.479 \| good	0.187 \| good
2026-10-04T20:00:00.000Z	20 \| good	3.43 \| good	8.846 \| good	21.848 \| good	0.489 \| good	4.103 \| good	0.194 \| good
2026-10-04T21:00:00.000Z	22 \| good	3.537 \| good	9.218 \| good	21.089 \| good	0.525 \| good	3.517 \| good	0.194 \| good
2026-10-04T22:00:00.000Z	22 \| good	3.782 \| good	10.614 \| good	21.801 \| good	0.507 \| good	3.067 \| good	0.194 \| good
2026-10-04T23:00:00.000Z	22 \| good	4.135 \| good	10.069 \| good	22.265 \| good	0.499 \| good	3.892 \| good	0.194 \| good
2026-10-05T00:00:00.000Z	27 \| good	4.58 \| good	11.694 \| good	20.938 \| good	0.486 \| good	6.429 \| good	0.199 \| good
2026-10-05T01:00:00.000Z	27 \| good	4.665 \| good	15.248 \| good	18.583 \| good	0.479 \| good	5.55 \| good	0.206 \| good
2026-10-05T02:00:00.000Z	22 \| good	4.404 \| good	13.972 \| good	16.578 \| good	0.538 \| good	6.245 \| good	0.207 \| good
2026-10-05T03:00:00.000Z	16 \| good	2.883 \| good	11.73 \| good	9.166 \| good	0.562 \| good	14.649 \| good	0.23 \| good
2026-10-05T04:00:00.000Z	27 \| good	4.893 \| good	12.329 \| good	12.25 \| good	0.518 \| good	4.768 \| good	0.202 \| good
2026-10-05T05:00:00.000Z	27 \| good	4.904 \| good	15.611 \| good	13.348 \| good	0.482 \| good	2.788 \| good	0.193 \| good
2026-10-05T06:00:00.000Z	27 \| good	4.974 \| good	17.035 \| good	13.474 \| good	0.5 \| good	4.01 \| good	0.193 \| good
2026-10-05T07:00:00.000Z	27 \| good	5.11 \| good	13.783 \| good	12.167 \| good	0.501 \| good	3.706 \| good	0.192 \| good
2026-10-05T08:00:00.000Z	27 \| good	5.485 \| good	14.485 \| good	11.402 \| good	0.617 \| good	2.764 \| good	0.128 \| good
2026-10-05T09:00:00.000Z	27 \| good	5.26 \| good	13.701 \| good	11.04 \| good	0.637 \| good	2.621 \| good	0.135 \| good
2026-10-05T10:00:00.000Z	27 \| good	5.294 \| good	11.823 \| good	10.286 \| good	0.23 \| good	4.643 \| good	0.23 \| good
2026-10-05T11:00:00.000Z	27 \| good	5.047 \| good	10.679 \| good	14.758 \| good	0.23 \| good	4.167 \| good	0.237 \| good
2026-10-05T12:00:00.000Z	27 \| good	4.571 \| good	11.688 \| good	13.319 \| good	0.236 \| good	5.877 \| good	0.237 \| good
2026-10-05T13:00:00.000Z	27 \| good	5.11 \| good	13.292 \| good	15.047 \| good	0.236 \| good	4.559 \| good	0.216 \| good
2026-10-05T14:00:00.000Z	27 \| good	4.58 \| good	13.082 \| good	14.099 \| good	0.245 \| good	3.624 \| good	0.214 \| good
2026-10-05T15:00:00.000Z	22 \| good	4.248 \| good	13.135 \| good	19.594 \| good	0.244 \| good	2.734 \| good	0.214 \| good
2026-10-05T16:00:00.000Z	22 \| good	4.132 \| good	9.212 \| good	18.657 \| good	0.245 \| good	2.669 \| good	0.214 \| good
2026-10-05T17:00:00.000Z	23 \| good	3.57 \| good	8.992 \| good	24.932 \| good	0.68 \| good	1.173 \| good	0.215 \| good
2026-10-05T18:00:00.000Z	24 \| good	3.268 \| good	9.079 \| good	26.215 \| good	0.252 \| good	1.743 \| good	0.201 \| good
2026-10-05T19:00:00.000Z	26 \| good	2.706 \| good	9.764 \| good	28.022 \| good	0.239 \| good	1.88 \| good	0.122 \| good
2026-10-05T20:00:00.000Z	29 \| good	2.283 \| good	8.017 \| good	30.573 \| good	0.252 \| good	1.828 \| good	0.122 \| good
2026-10-05T21:00:00.000Z	28 \| good	1.645 \| good	9.387 \| good	30.447 \| good	0.24 \| good	1.443 \| good	0.194 \| good
2026-10-05T22:00:00.000Z	30 \| good	1.688 \| good	16.119 \| good	32.33 \| good	0.658 \| good	1.452 \| good	0.123 \| good
2026-10-05T23:00:00.000Z	30 \| good	1.345 \| good	8.278 \| good	32.291 \| good	0.651 \| good	3.267 \| good	0.13 \| good
2026-10-06T00:00:00.000Z	30 \| good	1.405 \| good	6.16 \| good	32.034 \| good	0.655 \| good	1.429 \| good	0.123 \| good
2026-10-06T00:00:00.000Z	30 \| good	1.405 \| good	6.16 \| good	32.034 \| good	0.655 \| good	1.429 \| good	0.123 \| good
2026-10-06T00:00:00.000Z	19 \| good	0.564 \| good	2 \| good	21.239 \| good	0.292 \| good	1.719 \| good	0.132 \| good
2026-10-06T01:00:00.000Z	17 \| good	0.521 \| good	2 \| good	18.159 \| good	0.279 \| good	1.81 \| good	0.134 \| good
2026-10-06T02:00:00.000Z	13 \| good	0.282 \| good	0.757 \| good	14.028 \| good	0.255 \| good	1.847 \| good	0.135 \| good
2026-10-06T03:00:00.000Z	14 \| good	0.385 \| good	1.478 \| good	14.781 \| good	0.222 \| good	1.805 \| good	0.137 \| good
2026-10-06T04:00:00.000Z	13 \| good	0.468 \| good	1.756 \| good	13.523 \| good	0.186 \| good	1.583 \| good	0.138 \| good
2026-10-06T05:00:00.000Z	12 \| good	0.42 \| good	1.756 \| good	12.953 \| good	0.162 \| good	1.445 \| good	0.138 \| good
2026-10-06T06:00:00.000Z	14 \| good	0.305 \| good	1.06 \| good	14.503 \| good	0.15 \| good	1.41 \| good	0.137 \| good
2026-10-06T07:00:00.000Z	15 \| good	0.334 \| good	1.091 \| good	15.752 \| good	0.148 \| good	1.396 \| good	0.137 \| good
2026-10-06T08:00:00.000Z	15 \| good	0.37 \| good	1.417 \| good	15.684 \| good	0.15 \| good	1.341 \| good	0.135 \| good
2026-10-06T09:00:00.000Z	19 \| good	0.321 \| good	1.091 \| good	19.97 \| good	0.157 \| good	1.27 \| good	0.134 \| good
2026-10-06T10:00:00.000Z	17 \| good	0.312 \| good	1.091 \| good	18.303 \| good	0.172 \| good	1.257 \| good	0.132 \| good
2026-10-06T11:00:00.000Z	19 \| good	0.232 \| good	0.597 \| good	21.081 \| good	0.195 \| good	1.591 \| good	0.133 \| good
2026-10-06T12:00:00.000Z	19 \| good	0.208 \| good	0.513 \| good	20.416 \| good	0.208 \| good	1.643 \| good	0.136 \| good
2026-10-06T13:00:00.000Z	19 \| good	0.216 \| good	0.649 \| good	20.543 \| good	0.208 \| good	1.004 \| good	0.131 \| good
2026-10-06T14:00:00.000Z	19 \| good	0.424 \| good	1.953 \| good	21.179 \| good	0.201 \| good	0.732 \| good	0.129 \| good
2026-10-06T15:00:00.000Z	21 \| good	0.444 \| good	1.948 \| good	23.44 \| good	0.202 \| good	0.591 \| good	0.129 \| good
2026-10-06T16:00:00.000Z	25 \| good	0.929 \| good	3.953 \| good	26.907 \| good	0.218 \| good	0.502 \| good	0.128 \| good
2026-10-06T17:00:00.000Z	26 \| good	0.784 \| good	3 \| good	28.307 \| good	0.247 \| good	0.467 \| good	0.128 \| good
2026-10-06T18:00:00.000Z	29 \| good	0.973 \| good	3.836 \| good	30.505 \| good	0.277 \| good	0.471 \| good	0.129 \| good
2026-10-06T19:00:00.000Z	28 \| good	0.824 \| good	3.087 \| good	30.487 \| good	0.299 \| good	0.495 \| good	0.129 \| good
2026-10-06T20:00:00.000Z	24 \| good	0.846 \| good	3.332 \| good	26.184 \| good	0.305 \| good	0.578 \| good	0.13 \| good
2026-10-06T21:00:00.000Z	27 \| good	0.917 \| good	3.655 \| good	28.872 \| good	0.299 \| good	0.851 \| good	0.133 \| good
2026-10-06T22:00:00.000Z	23 \| good	1.164 \| good	4.435 \| good	25.09 \| good	0.288 \| good	2.167 \| good	0.145 \| good
2026-10-06T23:00:00.000Z	19 \| good	1.75 \| good	7.352 \| good	20.714 \| good	0.296 \| good	4.385 \| good	0.162 \| good
2026-10-07T00:00:00.000Z	19 \| good	0.334 \| good	1.172 \| good	21.049 \| good	0.308 \| good	5.335 \| good	0.169 \| good
2026-10-07T01:00:00.000Z	17 \| good	0.42 \| good	1.47 \| good	18.02 \| good	0.315 \| good	5.249 \| good	0.167 \| good
2026-10-07T02:00:00.000Z	16 \| good	0.499 \| good	1.741 \| good	16.575 \| good	0.322 \| good	4.91 \| good	0.163 \| good
2026-10-07T03:00:00.000Z	18 \| good	0.467 \| good	1.643 \| good	18.795 \| good	0.326 \| good	4.555 \| good	0.16 \| good
2026-10-07T04:00:00.000Z	19 \| good	0.727 \| good	2.677 \| good	20.166 \| good	0.322 \| good	4.099 \| good	0.158 \| good
2026-10-07T05:00:00.000Z	17 \| good	0.75 \| good	2.764 \| good	18.25 \| good	0.321 \| good	3.86 \| good	0.156 \| good
2026-10-07T06:00:00.000Z	18 \| good	0.755 \| good	2.803 \| good	19.366 \| good	0.325 \| good	4.061 \| good	0.156 \| good
2026-10-07T07:00:00.000Z	18 \| good	0.63 \| good	2.224 \| good	19.384 \| good	0.326 \| good	4.836 \| good	0.161 \| good
2026-10-07T08:00:00.000Z	17 \| good	1.343 \| good	5.113 \| good	17.774 \| good	0.327 \| good	6.023 \| good	0.168 \| good
2026-10-07T09:00:00.000Z	16 \| good	1.049 \| good	4.351 \| good	17.135 \| good	0.328 \| good	7.306 \| good	0.177 \| good
2026-10-07T10:00:00.000Z	13 \| good	1.531 \| good	6.102 \| good	13.891 \| good	0.334 \| good	8.6 \| good	0.187 \| good
2026-10-07T11:00:00.000Z	16 \| good	2.81 \| good	11.522 \| good	14.488 \| good	0.365 \| good	9.983 \| good	0.202 \| good
2026-10-07T12:00:00.000Z	16 \| good	3.1 \| good	13.431 \| good	17.374 \| good	0.372 \| good	8.401 \| good	0.213 \| good
2026-10-07T13:00:00.000Z	19 \| good	3.117 \| good	13.425 \| good	19.523 \| good	0.34 \| good	5.354 \| good	0.197 \| good
2026-10-07T14:00:00.000Z	21 \| good	2.875 \| good	11.756 \| good	23.098 \| good	0.368 \| good	2.923 \| good	0.165 \| good
2026-10-07T15:00:00.000Z	23 \| good	3.841 \| good	16.63 \| good	24.977 \| good	0.417 \| good	1.817 \| good	0.154 \| good
2026-10-07T16:00:00.000Z	27 \| good	3.589 \| good	15.753 \| good	28.66 \| good	0.496 \| good	1.322 \| good	0.152 \| good
2026-10-07T17:00:00.000Z	30 \| good	4.356 \| good	19.112 \| good	31.848 \| good	0.586 \| good	1.172 \| good	0.152 \| good
2026-10-07T18:00:00.000Z	31 \| good	5.19 \| good	22.53 \| good	32.505 \| good	0.675 \| good	1.317 \| good	0.155 \| good
2026-10-07T19:00:00.000Z	38 \| good	6.684 \| good	29.933 \| good	31.197 \| good	0.768 \| good	1.748 \| good	0.16 \| good
2026-10-07T20:00:00.000Z	44 \| good	7.846 \| good	34.331 \| good	33.531 \| good	0.851 \| good	2.45 \| good	0.166 \| good
2026-10-07T21:00:00.000Z	44 \| good	7.563 \| good	33.156 \| good	38.165 \| good	0.904 \| good	3.412 \| good	0.173 \| good
2026-10-07T22:00:00.000Z	36 \| good	4.853 \| good	20.962 \| good	38.931 \| good	0.916 \| good	4.694 \| good	0.181 \| good
2026-10-07T23:00:00.000Z	33 \| good	4.061 \| good	17.813 \| good	36.096 \| good	0.936 \| good	5.281 \| good	0.184 \| 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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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?