What are the current PM10 levels at Chelsea, Massachusetts?

The current PM10 levels in Chelsea, Massachusetts are 42.641 μg/m3.

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

The current sulfur dioxide (SO2) levels in Chelsea, Massachusetts are 0.646 ppb.

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

The current ozone (O3) levels at Chelsea, Massachusetts is 27.073 ppm.

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

The current nitrogen dioxide (NO2) levels at Chelsea, Massachusetts is 10.144 ppb.

Live air quality index in Chelsea, Massachusetts today

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

Stay updated with real-time air quality in Chelsea, 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

Chelsea, Massachusetts

Last updated: ... (Local time)

Major air pollutants in Chelsea, Massachusetts

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

9.72 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

42.64 μg/m³

155

255

425

605+

Ozone (O₃)

27.07 ppb

201

201+

Sulfur Dioxide (SO₂)

0.65 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

10.14 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.30 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Looks like we don't have this data available right now

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Chelsea, Massachusetts

Scroll To Air Quality Map

Track live Chelsea, Massachusetts air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-05T22:00:00.000Z	87 \| moderate	21.348 \| fine	82.28 \| fine	66.05 \| fine	0.503 \| good	12.08 \| good	0.391 \| good
2025-06-05T23:00:00.000Z	77 \| moderate	21.226 \| fine	81.838 \| fine	62.881 \| fine	0.584 \| good	13.056 \| good	0.387 \| good
2025-06-06T00:00:00.000Z	73 \| moderate	21.251 \| fine	82.581 \| fine	58.508 \| fine	0.505 \| good	10.598 \| good	0.39 \| good
2025-06-06T01:00:00.000Z	73 \| moderate	21.143 \| fine	81.566 \| fine	58.047 \| fine	0.499 \| good	8.468 \| good	0.39 \| good
2025-06-06T02:00:00.000Z	73 \| moderate	21.062 \| fine	81.137 \| fine	56.024 \| fine	0.499 \| good	10.249 \| good	0.39 \| good
2025-06-06T03:00:00.000Z	80 \| moderate	21.114 \| fine	80.923 \| fine	64.031 \| fine	0.508 \| good	9.455 \| good	0.392 \| good
2025-06-06T04:00:00.000Z	73 \| moderate	21.114 \| fine	80.923 \| fine	61.381 \| fine	0.513 \| good	9.056 \| good	0.385 \| good
2025-06-06T05:00:00.000Z	73 \| moderate	21.114 \| fine	80.923 \| fine	54.08 \| good	0.725 \| good	13.29 \| good	0.279 \| good
2025-06-06T06:00:00.000Z	67 \| moderate	18.427 \| fine	88.144 \| fine	58.758 \| fine	0.725 \| good	15.966 \| good	0.217 \| good
2025-06-06T07:00:00.000Z	66 \| moderate	17.403 \| fine	58.887 \| fine	50.76 \| good	0.509 \| good	6.899 \| good	0.288 \| good
2025-06-06T08:00:00.000Z	75 \| moderate	21.563 \| fine	77.228 \| fine	55.188 \| fine	0.507 \| good	7.361 \| good	0.284 \| good
2025-06-06T09:00:00.000Z	75 \| moderate	21.792 \| fine	81.775 \| fine	49.102 \| good	0.568 \| good	9.194 \| good	0.29 \| good
2025-06-06T10:00:00.000Z	75 \| moderate	21.973 \| fine	82.659 \| fine	43.229 \| good	0.556 \| good	7.898 \| good	0.29 \| good
2025-06-06T11:00:00.000Z	73 \| moderate	21.118 \| fine	79.129 \| fine	43.16 \| good	0.477 \| good	7.004 \| good	0.255 \| good
2025-06-06T12:00:00.000Z	71 \| moderate	20.004 \| fine	75.378 \| fine	39.039 \| good	0.51 \| good	15.521 \| good	0.25 \| good
2025-06-06T13:00:00.000Z	67 \| moderate	18.25 \| fine	69.865 \| fine	40.698 \| good	0.554 \| good	13.367 \| good	0.245 \| good
2025-06-06T14:00:00.000Z	66 \| moderate	16.521 \| fine	64.124 \| fine	40.482 \| good	0.492 \| good	9.884 \| good	0.245 \| good
2025-06-06T15:00:00.000Z	62 \| moderate	15.153 \| fine	59.411 \| fine	39.143 \| good	0.308 \| good	11.345 \| good	0.245 \| good
2025-06-06T16:00:00.000Z	60 \| moderate	14.395 \| fine	56.46 \| fine	43.104 \| good	0.566 \| good	10.09 \| good	0.245 \| good
2025-06-06T17:00:00.000Z	58 \| moderate	13.441 \| fine	53.605 \| good	42.564 \| good	0.48 \| good	6.999 \| good	0.202 \| good
2025-06-06T18:00:00.000Z	58 \| moderate	13.413 \| fine	54.783 \| good	38.702 \| good	0.483 \| good	6.834 \| good	0.244 \| good
2025-06-06T19:00:00.000Z	60 \| moderate	14.222 \| fine	57.86 \| fine	36.97 \| good	0.292 \| good	11.553 \| good	0.25 \| good
2025-06-06T20:00:00.000Z	62 \| moderate	15.214 \| fine	60.74 \| fine	33.668 \| good	0.391 \| good	12.055 \| good	0.205 \| good
2025-06-06T21:00:00.000Z	62 \| moderate	15.321 \| fine	60.473 \| fine	33.668 \| good	0.775 \| good	11.262 \| good	0.253 \| good
2025-06-06T22:00:00.000Z	64 \| moderate	15.617 \| fine	60.927 \| fine	33.827 \| good	0.573 \| good	13.916 \| good	0.25 \| good
2025-06-06T23:00:00.000Z	64 \| moderate	16.42 \| fine	63.693 \| fine	37.952 \| good	0.665 \| good	13.578 \| good	0.21 \| good
2025-06-07T00:00:00.000Z	67 \| moderate	17.834 \| fine	68.484 \| fine	28.885 \| good	0.73 \| good	16.858 \| good	0.252 \| good
2025-06-07T01:00:00.000Z	69 \| moderate	18.977 \| fine	71.566 \| fine	31.479 \| good	0.596 \| good	22.226 \| good	0.299 \| good
2025-06-07T02:00:00.000Z	71 \| moderate	20.004 \| fine	75.234 \| fine	35.184 \| good	0.489 \| good	12.427 \| good	0.339 \| good
2025-06-07T03:00:00.000Z	73 \| moderate	20.519 \| fine	77.08 \| fine	34.788 \| good	0.657 \| good	16.691 \| good	0.291 \| good
2025-06-07T04:00:00.000Z	73 \| moderate	20.519 \| fine	77.08 \| fine	33.931 \| good	0.637 \| good	17.787 \| good	0.29 \| good
2025-06-07T05:00:00.000Z	73 \| moderate	20.519 \| fine	77.08 \| fine	33.57 \| good	0.945 \| good	5.465 \| good	0.148 \| good
2025-06-07T06:00:00.000Z	38 \| good	7.491 \| good	27.02 \| good	36.994 \| good	0.927 \| good	8.032 \| good	0.148 \| good
2025-06-07T07:00:00.000Z	33 \| good	5.787 \| good	20.533 \| good	31.351 \| good	0.455 \| good	4.948 \| good	0.28 \| good
2025-06-07T08:00:00.000Z	69 \| moderate	19.123 \| fine	71.382 \| fine	34.739 \| good	0.471 \| good	5.229 \| good	0.28 \| good
2025-06-07T09:00:00.000Z	69 \| moderate	18.627 \| fine	69.701 \| fine	26.739 \| good	0.487 \| good	6.491 \| good	0.284 \| good
2025-06-07T10:00:00.000Z	62 \| moderate	14.855 \| fine	56.604 \| fine	26.485 \| good	0.472 \| good	4.912 \| good	0.193 \| good
2025-06-07T11:00:00.000Z	56 \| moderate	12.27 \| fine	47.826 \| good	22.593 \| good	0.44 \| good	4.179 \| good	0.193 \| good
2025-06-07T12:00:00.000Z	56 \| moderate	11.638 \| good	46.49 \| good	20.228 \| good	0.542 \| good	5.134 \| good	0.193 \| good
2025-06-07T13:00:00.000Z	60 \| moderate	14.199 \| fine	55.063 \| fine	19.943 \| good	0.56 \| good	11.395 \| good	0.294 \| good
2025-06-07T14:00:00.000Z	66 \| moderate	17.152 \| fine	66.003 \| fine	24.288 \| good	0.657 \| good	11.287 \| good	0.294 \| good
2025-06-07T15:00:00.000Z	67 \| moderate	18.043 \| fine	70.357 \| fine	23.422 \| good	0.595 \| good	9.043 \| good	0.248 \| good
2025-06-07T16:00:00.000Z	66 \| moderate	17.491 \| fine	67.957 \| fine	23.713 \| good	0.639 \| good	14.869 \| good	0.245 \| good
2025-06-07T17:00:00.000Z	66 \| moderate	16.812 \| fine	65.19 \| fine	18.474 \| good	0.827 \| good	20.282 \| good	0.252 \| good
2025-06-07T18:00:00.000Z	64 \| moderate	15.546 \| fine	60.214 \| fine	19.564 \| good	0.759 \| good	16.112 \| good	0.203 \| good
2025-06-07T19:00:00.000Z	58 \| moderate	12.962 \| fine	50.219 \| good	18.082 \| good	0.556 \| good	12.666 \| good	0.199 \| good
2025-06-07T20:00:00.000Z	54 \| moderate	11.434 \| good	43.789 \| good	22.596 \| good	0.581 \| good	11.059 \| good	0.247 \| good
2025-06-07T21:00:00.000Z	52 \| moderate	9.978 \| good	38.057 \| good	21.495 \| good	0.558 \| good	10.89 \| good	0.3 \| good
2025-06-07T21:00:00.000Z	52 \| moderate	9.719 \| good	42.641 \| good	27.073 \| good	0.646 \| good	10.144 \| good	0.299 \| good
2025-06-07T22:00:00.000Z	49 \| good	9.038 \| good	40.024 \| good	33.564 \| good	0.856 \| good	10.01 \| good	0.282 \| good
2025-06-07T23:00:00.000Z	58 \| moderate	12.84 \| fine	57.956 \| fine	35.409 \| good	1.171 \| good	12.713 \| good	0.289 \| good
2025-06-08T00:00:00.000Z	49 \| good	8.504 \| good	37.171 \| good	35.596 \| good	1.486 \| good	15.416 \| good	0.297 \| good
2025-06-08T01:00:00.000Z	54 \| moderate	10.664 \| good	47.179 \| good	30.714 \| good	0.74 \| good	7.875 \| good	0.299 \| good
2025-06-08T02:00:00.000Z	58 \| moderate	12.85 \| fine	57.515 \| fine	29.539 \| good	0.882 \| good	10 \| good	0.303 \| good
2025-06-08T03:00:00.000Z	58 \| moderate	13.135 \| fine	59.174 \| fine	31.61 \| good	1.024 \| good	12.125 \| good	0.307 \| good
2025-06-08T04:00:00.000Z	56 \| moderate	12.163 \| fine	54.285 \| good	33.181 \| good	0.707 \| good	5.766 \| good	0.334 \| good
2025-06-08T05:00:00.000Z	54 \| moderate	11.213 \| good	50.166 \| good	32.523 \| good	0.897 \| good	7.33 \| good	0.336 \| good
2025-06-08T06:00:00.000Z	54 \| moderate	11.309 \| good	50.248 \| good	29.642 \| good	1.086 \| good	8.893 \| good	0.337 \| good
2025-06-08T07:00:00.000Z	54 \| moderate	11.292 \| good	49.874 \| good	27.714 \| good	0.712 \| good	4.204 \| good	0.323 \| good
2025-06-08T08:00:00.000Z	58 \| moderate	12.578 \| fine	56.795 \| fine	25.374 \| good	0.916 \| good	5.746 \| good	0.331 \| good
2025-06-08T09:00:00.000Z	60 \| moderate	13.971 \| fine	62.482 \| fine	19.332 \| good	1.12 \| good	7.287 \| good	0.34 \| good
2025-06-08T10:00:00.000Z	58 \| moderate	12.862 \| fine	58.237 \| fine	20.084 \| good	0.742 \| good	3.607 \| good	0.32 \| good
2025-06-08T11:00:00.000Z	56 \| moderate	12.242 \| fine	55.301 \| fine	20.376 \| good	0.87 \| good	4.441 \| good	0.337 \| good
2025-06-08T12:00:00.000Z	54 \| moderate	11.129 \| good	49.231 \| good	24.876 \| good	0.998 \| good	5.275 \| good	0.354 \| good
2025-06-08T13:00:00.000Z	54 \| moderate	11.228 \| good	49.618 \| good	29.583 \| good	0.716 \| good	2.444 \| good	0.274 \| good
2025-06-08T14:00:00.000Z	56 \| moderate	12.354 \| fine	55.699 \| fine	31.656 \| good	0.778 \| good	2.789 \| good	0.276 \| good
2025-06-08T15:00:00.000Z	58 \| moderate	13.235 \| fine	59.386 \| fine	34.357 \| good	0.84 \| good	3.133 \| good	0.277 \| good
2025-06-08T16:00:00.000Z	62 \| moderate	14.606 \| fine	65.173 \| fine	35.208 \| good	0.655 \| good	2.081 \| good	0.25 \| good
2025-06-08T17:00:00.000Z	64 \| moderate	16.31 \| fine	72.445 \| fine	34.607 \| good	0.686 \| good	2.287 \| good	0.249 \| good
2025-06-08T18:00:00.000Z	67 \| moderate	18.063 \| fine	79.866 \| fine	35.599 \| good	0.717 \| good	2.494 \| good	0.248 \| good
2025-06-08T19:00:00.000Z	66 \| moderate	17.27 \| fine	76.516 \| fine	37.143 \| good	0.688 \| good	3.601 \| good	0.273 \| good
2025-06-08T20:00:00.000Z	67 \| moderate	17.701 \| fine	78.342 \| fine	35.675 \| good	0.732 \| good	3.991 \| good	0.274 \| good
2025-06-08T21:00:00.000Z	66 \| moderate	16.738 \| fine	74.188 \| fine	34.483 \| good	0.776 \| good	4.382 \| good	0.276 \| good
2025-06-08T22:00:00.000Z	64 \| moderate	16.419 \| fine	73.243 \| fine	34.447 \| good	0.828 \| good	7.283 \| good	0.308 \| good
2025-06-08T23:00:00.000Z	66 \| moderate	17.22 \| fine	77.081 \| fine	31.343 \| good	0.865 \| good	8.62 \| good	0.315 \| good
2025-06-09T00:00:00.000Z	62 \| moderate	14.834 \| fine	65.675 \| fine	26.206 \| good	0.901 \| good	9.958 \| good	0.323 \| good
2025-06-09T01:00:00.000Z	56 \| moderate	12.347 \| fine	55.623 \| fine	22.651 \| good	0.853 \| good	9.601 \| good	0.322 \| good
2025-06-09T02:00:00.000Z	52 \| moderate	9.693 \| good	43.091 \| good	24.966 \| good	0.865 \| good	12.673 \| good	0.343 \| good
2025-06-09T03:00:00.000Z	52 \| moderate	10.295 \| good	45.789 \| good	27.93 \| good	0.876 \| good	15.746 \| good	0.364 \| good
2025-06-09T04:00:00.000Z	54 \| moderate	11.294 \| good	49.696 \| good	30.332 \| good	0.78 \| good	4.703 \| good	0.29 \| good
2025-06-09T05:00:00.000Z	56 \| moderate	11.819 \| good	52.407 \| good	32.909 \| good	0.758 \| good	4.836 \| good	0.291 \| good
2025-06-09T06:00:00.000Z	54 \| moderate	10.718 \| good	47.608 \| good	34.547 \| good	0.736 \| good	4.969 \| good	0.292 \| good
2025-06-09T07:00:00.000Z	52 \| moderate	10.127 \| good	45.043 \| good	33.609 \| good	0.723 \| good	2.672 \| good	0.265 \| good
2025-06-09T08:00:00.000Z	56 \| moderate	11.598 \| good	51.115 \| good	31.492 \| good	0.723 \| good	2.691 \| good	0.263 \| good
2025-06-09T09:00:00.000Z	56 \| moderate	11.937 \| good	53.715 \| good	25.593 \| good	0.723 \| good	2.709 \| good	0.261 \| good
2025-06-09T10:00:00.000Z	54 \| moderate	11.278 \| good	49.967 \| good	24.925 \| good	0.666 \| good	4.264 \| good	0.256 \| good
2025-06-09T11:00:00.000Z	54 \| moderate	11.283 \| good	49.756 \| good	27.479 \| good	0.684 \| good	4.541 \| good	0.253 \| good
2025-06-09T12:00:00.000Z	56 \| moderate	12.297 \| fine	55.203 \| fine	27.639 \| good	0.703 \| good	4.818 \| good	0.251 \| good
2025-06-09T13:00:00.000Z	56 \| moderate	11.878 \| good	53.112 \| good	30.461 \| good	0.648 \| good	4.944 \| good	0.212 \| good
2025-06-09T14:00:00.000Z	54 \| moderate	11.044 \| good	48.899 \| good	32.014 \| good	0.68 \| good	5.042 \| good	0.202 \| good
2025-06-09T15:00:00.000Z	54 \| moderate	10.641 \| good	47.092 \| good	34.36 \| good	0.711 \| good	5.139 \| good	0.191 \| good
2025-06-09T16:00:00.000Z	52 \| moderate	10.445 \| good	46.431 \| good	37.317 \| good	0.659 \| good	3.889 \| good	0.168 \| good
2025-06-09T17:00:00.000Z	52 \| moderate	10.309 \| good	45.746 \| good	38.676 \| good	0.678 \| good	3.933 \| good	0.166 \| good
2025-06-09T18:00:00.000Z	52 \| moderate	10.27 \| good	45.393 \| good	39.016 \| good	0.697 \| good	3.977 \| good	0.164 \| good
2025-06-09T19:00:00.000Z	54 \| moderate	10.501 \| good	46.471 \| good	39.243 \| good	0.555 \| good	4.51 \| good	0.21 \| good
2025-06-09T20:00:00.000Z	54 \| moderate	10.625 \| good	46.985 \| good	37.303 \| good	0.589 \| good	4.665 \| good	0.212 \| good
2025-06-09T21:00:00.000Z	52 \| moderate	10.321 \| good	45.789 \| good	38.186 \| good	0.622 \| good	4.821 \| good	0.214 \| good

Chelsea

Empower business decisions with accurate air quality data

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

0.25ppm

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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Check live rankings of places in the USA affected by air pollution.

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Frequently asked questions

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

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

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

The worst air quality in Chelsea, Massachusetts was recorded at 05:00:00 on 2025-06-07.

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

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

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

The real-time air quality index in Chelsea, Massachusetts is 52, currently categorized as Moderate.

Which pollutant is found most often in Chelsea, Massachusetts?

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

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

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

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

The measured PM_2.5 levels in Chelsea, Massachusetts at present are 9.719 μg/m³.

What are the current PM₁₀ levels at Chelsea, Massachusetts?

The current PM₁₀ levels in Chelsea, Massachusetts are 42.641 μg/m³.

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

The current carbon monoxide (CO) level in Chelsea, Massachusetts is 0.299 ppm.

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

The current sulfur dioxide (SO₂) levels in Chelsea, Massachusetts are 0.646 ppb.

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

The current ozone (O₃) levels at Chelsea, Massachusetts is 27.073 ppm.

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

The current nitrogen dioxide (NO₂) levels at Chelsea, Massachusetts is 10.144 ppb.

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