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

The current PM10 concentration at Greenfield, Massachusetts is 17 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Greenfield, Massachusetts is 0.302 ppb.

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

The current ozone (O3) concentration at Greenfield, Massachusetts is 46.001 ppm.

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

The current nitrogen dioxide (NO2) concentration at Greenfield, Massachusetts is 4.057 ppb.

Greenfield, Massachusetts live air quality index now

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

The current PM2.5 concentration at Greenfield, Massachusetts is 3.901 μg/m3.

Stay updated with real-time air quality in Greenfield, 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

Greenfield, Massachusetts

Last updated: ... (Local time)

Major air pollutants in Greenfield, Massachusetts

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

3.90 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

17.00 μg/m³

155

255

425

605+

Ozone (O₃)

46.00 ppb

201

201+

Sulfur Dioxide (SO₂)

0.30 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.06 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.18 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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Greenfield, Massachusetts

Scroll To Air Quality Map

Track live Greenfield, Massachusetts air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-03-28T00:00:00.000Z	40 \| good	4.699 \| good	20.992 \| good	43.001 \| good	0.188 \| good	2.85 \| good	0.203 \| good
2026-03-28T01:00:00.000Z	37 \| good	4.999 \| good	21.992 \| good	40.004 \| good	0.233 \| good	4.598 \| good	0.18 \| good
2026-03-28T02:00:00.000Z	38 \| good	6.797 \| good	29.985 \| good	37.005 \| good	0.214 \| good	7.976 \| good	0.18 \| good
2026-03-28T03:00:00.000Z	54 \| moderate	11.093 \| good	48.968 \| good	32.007 \| good	0.214 \| good	7.753 \| good	0.219 \| good
2026-03-28T04:00:00.000Z	52 \| moderate	10.194 \| good	44.972 \| good	32.007 \| good	0.214 \| good	5.963 \| good	0.219 \| good
2026-03-28T05:00:00.000Z	44 \| good	7.597 \| good	33.982 \| good	32.006 \| good	0.245 \| good	5.284 \| good	0.219 \| good
2026-03-28T06:00:00.000Z	44 \| good	7.597 \| good	33.982 \| good	34.005 \| good	0.248 \| good	5.117 \| good	0.218 \| good
2026-03-28T07:00:00.000Z	33 \| good	5.898 \| good	26.989 \| good	33.006 \| good	0.271 \| good	4.672 \| good	0.18 \| good
2026-03-28T08:00:00.000Z	31 \| good	4.599 \| good	19.996 \| good	34.004 \| good	0.205 \| good	4.307 \| good	0.18 \| good
2026-03-28T09:00:00.000Z	31 \| good	4.699 \| good	20.995 \| good	33.005 \| good	0.205 \| good	3.22 \| good	0.18 \| good
2026-03-28T10:00:00.000Z	31 \| good	4.799 \| good	20.994 \| good	33.004 \| good	0.223 \| good	4.029 \| good	0.155 \| good
2026-03-28T11:00:00.000Z	32 \| good	4.899 \| good	20.994 \| good	35 \| good	0.238 \| good	2.802 \| good	0.16 \| good
2026-03-28T12:00:00.000Z	32 \| good	4.899 \| good	20.995 \| good	35 \| good	0.233 \| good	2.504 \| good	0.203 \| good
2026-03-28T13:00:00.000Z	31 \| good	4.899 \| good	20.995 \| good	34.003 \| good	0.233 \| good	2.477 \| good	0.203 \| good
2026-03-28T14:00:00.000Z	31 \| good	4.5 \| good	19.996 \| good	34.004 \| good	0.217 \| good	1.54 \| good	0.16 \| good
2026-03-28T15:00:00.000Z	31 \| good	4.6 \| good	19.996 \| good	33.006 \| good	0.195 \| good	1.788 \| good	0.16 \| good
2026-03-28T16:00:00.000Z	31 \| good	4.5 \| good	19.995 \| good	34.005 \| good	0.217 \| good	1.442 \| good	0.16 \| good
2026-03-28T17:00:00.000Z	32 \| good	4.5 \| good	19.995 \| good	35.003 \| good	0.217 \| good	1.403 \| good	0.16 \| good
2026-03-28T18:00:00.000Z	36 \| good	4.3 \| good	18.996 \| good	39 \| good	0.217 \| good	1.564 \| good	0.182 \| good
2026-03-28T19:00:00.000Z	38 \| good	4.2 \| good	18.996 \| good	40.998 \| good	0.217 \| good	1.545 \| good	0.182 \| good
2026-03-28T20:00:00.000Z	39 \| good	4 \| good	17.996 \| good	41.998 \| good	0.26 \| good	1.554 \| good	0.182 \| good
2026-03-28T21:00:00.000Z	38 \| good	4 \| good	17.996 \| good	41 \| good	0.26 \| good	1.555 \| good	0.182 \| good
2026-03-28T22:00:00.000Z	33 \| good	3.5 \| good	15.997 \| good	36.006 \| good	0.236 \| good	1.727 \| good	0.16 \| good
2026-03-28T23:00:00.000Z	31 \| good	3.4 \| good	14.998 \| good	34.007 \| good	0.229 \| good	2.084 \| good	0.182 \| good
2026-03-29T00:00:00.000Z	34 \| good	3.3 \| good	14.997 \| good	37.004 \| good	0.275 \| good	2.146 \| good	0.182 \| good
2026-03-29T01:00:00.000Z	33 \| good	3.3 \| good	14.998 \| good	36.005 \| good	0.26 \| good	3.025 \| good	0.182 \| good
2026-03-29T02:00:00.000Z	36 \| good	3.4 \| good	14.997 \| good	39.002 \| good	0.272 \| good	2.215 \| good	0.182 \| good
2026-03-29T03:00:00.000Z	29 \| good	2.21 \| good	9.011 \| good	31.082 \| good	0.331 \| good	1.477 \| good	0.194 \| good
2026-03-29T04:00:00.000Z	38 \| good	3.8 \| good	16.995 \| good	41.001 \| good	0.257 \| good	1.872 \| good	0.182 \| good
2026-03-29T05:00:00.000Z	35 \| good	4.399 \| good	18.994 \| good	38.003 \| good	0.277 \| good	4.018 \| good	0.182 \| good
2026-03-29T06:00:00.000Z	31 \| good	4.399 \| good	18.994 \| good	33.005 \| good	0.269 \| good	3.945 \| good	0.182 \| good
2026-03-29T07:00:00.000Z	27 \| good	5.298 \| good	22.99 \| good	27.01 \| good	0.258 \| good	6.043 \| good	0.204 \| good
2026-03-29T08:00:00.000Z	27 \| good	4.899 \| good	20.993 \| good	27.01 \| good	0.277 \| good	6.401 \| good	0.226 \| good
2026-03-29T09:00:00.000Z	27 \| good	4.899 \| good	20.993 \| good	24.012 \| good	0.297 \| good	6.5 \| good	0.226 \| good
2026-03-29T10:00:00.000Z	27 \| good	5.099 \| good	21.993 \| good	16.015 \| good	0.348 \| good	5.446 \| good	0.189 \| good
2026-03-29T11:00:00.000Z	27 \| good	5.399 \| good	22.991 \| good	16.016 \| good	0.363 \| good	6.867 \| good	0.189 \| good
2026-03-29T12:00:00.000Z	33 \| good	6.298 \| good	27.987 \| good	14.018 \| good	0.342 \| good	11.446 \| good	0.211 \| good
2026-03-29T13:00:00.000Z	33 \| good	6.298 \| good	27.987 \| good	15.014 \| good	0.305 \| good	11.263 \| good	0.24 \| good
2026-03-29T14:00:00.000Z	27 \| good	5.199 \| good	22.992 \| good	22.009 \| good	0.322 \| good	2.966 \| good	0.204 \| good
2026-03-29T15:00:00.000Z	27 \| good	4.899 \| good	20.994 \| good	25.008 \| good	0.311 \| good	1.916 \| good	0.204 \| good
2026-03-29T16:00:00.000Z	27 \| good	4.4 \| good	18.996 \| good	29.006 \| good	0.216 \| good	1.567 \| good	0.182 \| good
2026-03-29T17:00:00.000Z	36 \| good	4.2 \| good	18.996 \| good	39.002 \| good	0.218 \| good	1.119 \| good	0.222 \| good
2026-03-29T18:00:00.000Z	36 \| good	3.8 \| good	16.998 \| good	39.003 \| good	0.195 \| good	1.733 \| good	0.198 \| good
2026-03-29T19:00:00.000Z	39 \| good	3.7 \| good	15.999 \| good	42.002 \| good	0.204 \| good	1.549 \| good	0.198 \| good
2026-03-29T20:00:00.000Z	39 \| good	3.7 \| good	15.999 \| good	42.004 \| good	0.239 \| good	1.714 \| good	0.198 \| good
2026-03-29T21:00:00.000Z	40 \| good	4 \| good	17.997 \| good	43.003 \| good	0.221 \| good	2.687 \| good	0.222 \| good
2026-03-29T22:00:00.000Z	42 \| good	4 \| good	17.998 \| good	45.002 \| good	0.28 \| good	2.014 \| good	0.176 \| good
2026-03-29T23:00:00.000Z	43 \| good	3.901 \| good	17 \| good	46.001 \| good	0.302 \| good	4.057 \| good	0.176 \| good
2026-03-29T23:00:00.000Z	43 \| good	3.901 \| good	17 \| good	46.001 \| good	0.302 \| good	4.057 \| good	0.176 \| good
2026-03-30T00:00:00.000Z	33 \| good	5.704 \| good	24.996 \| good	26.226 \| good	2.143 \| good	5.876 \| good	0.186 \| good
2026-03-30T01:00:00.000Z	49 \| good	9.145 \| good	40.937 \| good	22.614 \| good	2.171 \| good	6.157 \| good	0.193 \| good
2026-03-30T02:00:00.000Z	52 \| moderate	10.061 \| good	44.987 \| good	17 \| good	2.199 \| good	6.438 \| good	0.2 \| good
2026-03-30T03:00:00.000Z	54 \| moderate	10.553 \| good	46.976 \| good	20.333 \| good	2.227 \| good	6.719 \| good	0.207 \| good
2026-03-30T04:00:00.000Z	44 \| good	8.308 \| good	36.991 \| good	27.688 \| good	2.122 \| good	6.347 \| good	0.204 \| good
2026-03-30T05:00:00.000Z	49 \| good	9.328 \| good	41.991 \| good	31.049 \| good	2.017 \| good	5.974 \| good	0.201 \| good
2026-03-30T06:00:00.000Z	54 \| moderate	11.417 \| good	51.003 \| good	24.666 \| good	1.912 \| good	5.602 \| good	0.199 \| good
2026-03-30T07:00:00.000Z	44 \| good	8.362 \| good	36.98 \| good	29.669 \| good	1.801 \| good	4.998 \| good	0.19 \| good
2026-03-30T08:00:00.000Z	33 \| good	6.316 \| good	28.008 \| good	25.081 \| good	1.689 \| good	4.393 \| good	0.181 \| good
2026-03-30T09:00:00.000Z	33 \| good	5.608 \| good	24.062 \| good	21.235 \| good	1.578 \| good	3.789 \| good	0.172 \| good
2026-03-30T10:00:00.000Z	52 \| moderate	9.728 \| good	43.049 \| good	14.066 \| good	1.541 \| good	3.935 \| good	0.174 \| good
2026-03-30T11:00:00.000Z	44 \| good	8.219 \| good	36.04 \| good	11.95 \| good	1.504 \| good	4.081 \| good	0.176 \| good
2026-03-30T12:00:00.000Z	38 \| good	7.457 \| good	33.009 \| good	18.232 \| good	1.466 \| good	4.228 \| good	0.179 \| good
2026-03-30T13:00:00.000Z	44 \| good	8.353 \| good	37.004 \| good	24.16 \| good	1.555 \| good	3.79 \| good	0.179 \| good
2026-03-30T14:00:00.000Z	49 \| good	8.956 \| good	39.064 \| good	28.843 \| good	1.644 \| good	3.353 \| good	0.18 \| good
2026-03-30T15:00:00.000Z	44 \| good	7.548 \| good	33.028 \| good	36.904 \| good	1.732 \| good	2.916 \| good	0.181 \| good
2026-03-30T16:00:00.000Z	44 \| good	7.514 \| good	33.01 \| good	41.233 \| good	1.762 \| good	2.4 \| good	0.173 \| good
2026-03-30T17:00:00.000Z	44 \| good	8.054 \| good	35.027 \| good	36.847 \| good	1.791 \| good	1.885 \| good	0.166 \| good
2026-03-30T18:00:00.000Z	49 \| good	8.891 \| good	39.014 \| good	33.682 \| good	1.821 \| good	1.369 \| good	0.158 \| good
2026-03-30T19:00:00.000Z	49 \| good	9.28 \| good	41.01 \| good	38.546 \| good	1.606 \| good	1.292 \| good	0.155 \| good
2026-03-30T20:00:00.000Z	44 \| good	8.401 \| good	36.978 \| good	39.111 \| good	1.392 \| good	1.215 \| good	0.151 \| good
2026-03-30T21:00:00.000Z	49 \| good	8.807 \| good	38.984 \| good	37.83 \| good	1.178 \| good	1.138 \| good	0.148 \| good
2026-03-30T22:00:00.000Z	52 \| moderate	9.754 \| good	42.994 \| good	38.48 \| good	1.225 \| good	1.969 \| good	0.156 \| good
2026-03-30T23:00:00.000Z	38 \| good	6.883 \| good	30.032 \| good	32.182 \| good	1.272 \| good	2.801 \| good	0.164 \| good
2026-03-31T00:00:00.000Z	44 \| good	8.078 \| good	35.006 \| good	25.39 \| good	1.319 \| good	3.633 \| good	0.172 \| good
2026-03-31T01:00:00.000Z	52 \| moderate	9.517 \| good	42.945 \| good	22.697 \| good	1.483 \| good	4.026 \| good	0.178 \| good
2026-03-31T02:00:00.000Z	33 \| good	5.783 \| good	25.041 \| good	28.993 \| good	1.648 \| good	4.418 \| good	0.185 \| good
2026-03-31T03:00:00.000Z	38 \| good	6.51 \| good	28.991 \| good	29.021 \| good	1.813 \| good	4.81 \| good	0.192 \| good
2026-03-31T04:00:00.000Z	33 \| good	6.199 \| good	27.939 \| good	27.857 \| good	1.855 \| good	4.468 \| good	0.192 \| good
2026-03-31T05:00:00.000Z	38 \| good	6.841 \| good	30.034 \| good	24.137 \| good	1.897 \| good	4.125 \| good	0.192 \| good
2026-03-31T06:00:00.000Z	62 \| moderate	14.524 \| fine	15.393 \| good	39.753 \| good	1.97 \| good	3.97 \| good	0.193 \| good
2026-03-31T07:00:00.000Z	49 \| good	8.938 \| good	39.058 \| good	20.179 \| good	1.898 \| good	3.693 \| good	0.191 \| good
2026-03-31T08:00:00.000Z	49 \| good	8.673 \| good	38 \| good	21.555 \| good	1.857 \| good	3.602 \| good	0.19 \| good
2026-03-31T09:00:00.000Z	52 \| moderate	10.122 \| good	44.999 \| good	16.555 \| good	1.816 \| good	3.512 \| good	0.19 \| good
2026-03-31T10:00:00.000Z	38 \| good	6.791 \| good	30.016 \| good	20.679 \| good	1.725 \| good	3.879 \| good	0.191 \| good
2026-03-31T11:00:00.000Z	44 \| good	7.55 \| good	33.057 \| good	18.302 \| good	1.635 \| good	4.246 \| good	0.191 \| good
2026-03-31T12:00:00.000Z	64 \| moderate	15.591 \| fine	16.038 \| good	34.425 \| good	1.574 \| good	4.9 \| good	0.194 \| good
2026-03-31T13:00:00.000Z	62 \| moderate	14.868 \| fine	15.306 \| good	35.07 \| good	1.468 \| good	4.529 \| good	0.191 \| good
2026-03-31T14:00:00.000Z	58 \| moderate	12.792 \| fine	13.185 \| good	35.715 \| good	1.362 \| good	4.159 \| good	0.189 \| good
2026-03-31T15:00:00.000Z	54 \| moderate	10.776 \| good	11.13 \| good	36.361 \| good	1.255 \| good	3.789 \| good	0.186 \| good
2026-03-31T16:00:00.000Z	52 \| moderate	9.668 \| good	9.954 \| good	38.369 \| good	1.15 \| good	3.234 \| good	0.18 \| good
2026-03-31T17:00:00.000Z	62 \| moderate	15.418 \| fine	69.002 \| fine	16.165 \| good	1.025 \| good	2.539 \| good	0.172 \| good
2026-03-31T18:00:00.000Z	44 \| good	7.763 \| good	7.937 \| good	42.387 \| good	0.938 \| good	2.126 \| good	0.167 \| good
2026-03-31T19:00:00.000Z	39 \| good	7.365 \| good	7.532 \| good	42.216 \| good	0.912 \| good	2.426 \| good	0.17 \| good
2026-03-31T20:00:00.000Z	44 \| good	8.349 \| good	8.57 \| good	42.046 \| good	0.886 \| good	2.726 \| good	0.173 \| good
2026-03-31T21:00:00.000Z	49 \| good	8.971 \| good	9.187 \| good	41.876 \| good	0.86 \| good	3.026 \| good	0.176 \| good
2026-03-31T22:00:00.000Z	49 \| good	9.367 \| good	9.561 \| good	40.508 \| good	0.952 \| good	4.214 \| good	0.185 \| good
2026-03-31T23:00:00.000Z	52 \| moderate	9.55 \| good	9.732 \| good	39.14 \| good	1.044 \| good	5.401 \| good	0.194 \| good

Greenfield

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Greenfield, Massachusetts air quality map: Track AQI near you

0.17ppm

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 Greenfield, Massachusetts updated?

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

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

The worst air quality in Greenfield, Massachusetts in the last 24 hours was observed at 10:00:00 on 2026-03-29.

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

In the last 24 hrs, the best air quality in Greenfield, Massachusetts was observed at 04:00:00 on 2026-03-29.

What is the current air quality in Greenfield, Massachusetts?

The current air quality in Greenfield, Massachusetts is 43, categorized as Good based on real-time data.

What pollutant is the most common in Greenfield, Massachusetts?

The most common pollutant in Greenfield, Massachusetts is O3.

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

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

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

The current PM_2.5 concentration at Greenfield, Massachusetts is 3.901 μg/m³.

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

The current PM₁₀ concentration at Greenfield, Massachusetts is 17 μg/m³.

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

The current carbon monoxide (CO) concentration at Greenfield, Massachusetts is 0.176 ppm.

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

The current sulfur dioxide (SO₂) concentration at Greenfield, Massachusetts is 0.302 ppb.

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

The current ozone (O₃) concentration at Greenfield, Massachusetts is 46.001 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Greenfield, Massachusetts is 4.057 ppb.

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