Stay updated with real-time air quality in Hopkinton, 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)
52
Moderate
Hopkinton, Massachusetts
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
10.06 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
26.31 μg/m³
0
55
155
255
425
605+
18.82 ppb
0
55
71
86
201
201+
0.82 ppb
0
36
76
186
605
1005+
5.57 ppb
0
54
101
361
1250
2050+
0.29 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Hopkinton, Massachusetts
Hopkinton, Massachusetts
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AQI 54
Moderate
11.25μg/m³
PM2.5
48.55μg/m³
PM10
24.02ppb
O3
0.80ppb
SO2
5.97ppb
NO2
0.27ppm
CO
AQI 54
Moderate
11.06μg/m³
PM2.5
47.46μg/m³
PM10
20.63ppb
O3
0.85ppb
SO2
5.39ppb
NO2
0.27ppm
CO
AQI 54
Moderate
10.72μg/m³
PM2.5
45.41μg/m³
PM10
24.16ppb
O3
0.79ppb
SO2
5.64ppb
NO2
0.27ppm
CO
AQI 54
Moderate
11.24μg/m³
PM2.5
45.63μg/m³
PM10
23.08ppb
O3
0.85ppb
SO2
5.37ppb
NO2
0.27ppm
CO
AQI 44
Good
8.13μg/m³
PM2.5
22.55μg/m³
PM10
24.33ppb
O3
0.66ppb
SO2
5.42ppb
NO2
0.27ppm
CO
AQI 54
Moderate
11.32μg/m³
PM2.5
50.03μg/m³
PM10
23.94ppb
O3
0.81ppb
SO2
5.98ppb
NO2
0.27ppm
CO
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
Air quality data for Hopkinton, Massachusetts is updated on an hourly basis.
The worst air quality in Hopkinton, Massachusetts was recorded at 08:00:00 on 2025-06-07.
The best air quality in Hopkinton, Massachusetts was recorded at 07:00:00 on 2025-06-07.
The real-time air quality index in Hopkinton, Massachusetts is 52, currently categorized as Moderate.
The most common pollutant in Hopkinton, Massachusetts is PM2.5.
If the air quality in Hopkinton, Massachusetts is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Hopkinton, Massachusetts at present are 10.065 μg/m3.
The current PM10 levels in Hopkinton, Massachusetts are 26.307 μg/m3.
The current carbon monoxide (CO) level in Hopkinton, Massachusetts is 0.288 ppm.
The current sulfur dioxide (SO2) levels in Hopkinton, Massachusetts are 0.821 ppb.
The current ozone (O3) levels at Hopkinton, Massachusetts is 18.818 ppm.
The current nitrogen dioxide (NO2) levels at Hopkinton, Massachusetts is 5.567 ppb.
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