Stay updated with real-time air quality in Greenfield, Massachusetts featuring accurate data on AQI, PM2.5, 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)
58
Moderate
Greenfield, Massachusetts
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
13.00 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
58.98 μg/m³
0
55
155
255
425
605+
15.01 ppb
0
55
71
86
201
201+
0.67 ppb
0
36
76
186
605
1005+
4.66 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Greenfield, Massachusetts
Scroll To Air Quality MapLoading...
AQI 58
Moderate
12.57μg/m³
PM2.5
49.05μg/m³
PM10
19.04ppb
O3
0.61ppb
SO2
3.98ppb
NO2
0.19ppm
CO
AQI 58
Moderate
12.71μg/m³
PM2.5
38.03μg/m³
PM10
16.30ppb
O3
0.57ppb
SO2
4.22ppb
NO2
0.19ppm
CO
AQI 54
Moderate
11.13μg/m³
PM2.5
49.66μg/m³
PM10
16.20ppb
O3
0.73ppb
SO2
6.36ppb
NO2
0.17ppm
CO
AQI 54
Moderate
10.80μg/m³
PM2.5
45.27μg/m³
PM10
25.44ppb
O3
0.79ppb
SO2
4.75ppb
NO2
0.18ppm
CO
AQI 56
Moderate
12.43μg/m³
PM2.5
27.49μg/m³
PM10
21.01ppb
O3
0.52ppb
SO2
4.36ppb
NO2
0.19ppm
CO
AQI 56
Moderate
12.10μg/m³
PM2.5
53.68μg/m³
PM10
15.89ppb
O3
0.46ppb
SO2
4.34ppb
NO2
0.19ppm
CO
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
The air quality for Greenfield, Massachusetts is updated every hour.
The worst air quality in Greenfield, Massachusetts in the last 24 hours was observed at 11:00:00 on 2025-06-06.
In the last 24 hrs, the best air quality in Greenfield, Massachusetts was observed at 06:00:00 on 2025-06-07.
The current air quality in Greenfield, Massachusetts is 58, categorized as Moderate based on real-time data.
The most common pollutant in Greenfield, Massachusetts is PM2.5.
If the air quality in Greenfield, Massachusetts is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Greenfield, Massachusetts is 12.998 μg/m3.
The current PM10 concentration at Greenfield, Massachusetts is 58.984 μg/m3.
The current carbon monoxide (CO) concentration at Greenfield, Massachusetts is 0.182 ppm.
The current sulfur dioxide (SO2) concentration at Greenfield, Massachusetts is 0.67 ppb.
The current ozone (O3) concentration at Greenfield, Massachusetts is 15.006 ppm.
The current nitrogen dioxide (NO2) concentration at Greenfield, Massachusetts is 4.659 ppb.
All Rights Reserved © Ambee Inc. 2025