Stay updated with real-time air quality in Smithfield, Rhode Island 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)
21
Good
Smithfield, Rhode Island
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
0.60 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
2.21 μg/m³
0
55
155
255
425
605+
22.57 ppb
0
55
71
86
201
201+
0.38 ppb
0
36
76
186
605
1005+
2.86 ppb
0
54
101
361
1250
2050+
0.28 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Smithfield, Rhode Island
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AQI 21
Good
1.88μg/m³
PM2.5
7.91μg/m³
PM10
22.93ppb
O3
0.25ppb
SO2
5.54ppb
NO2
0.28ppm
CO
AQI 21
Good
0.54μg/m³
PM2.5
2.35μg/m³
PM10
22.59ppb
O3
0.42ppb
SO2
2.99ppb
NO2
0.27ppm
CO
AQI 21
Good
0.60μg/m³
PM2.5
2.09μg/m³
PM10
22.56ppb
O3
0.43ppb
SO2
2.74ppb
NO2
0.26ppm
CO
AQI 21
Good
1.83μg/m³
PM2.5
7.60μg/m³
PM10
22.87ppb
O3
0.25ppb
SO2
6.42ppb
NO2
0.30ppm
CO
AQI 21
Good
1.89μg/m³
PM2.5
7.84μg/m³
PM10
22.82ppb
O3
0.26ppb
SO2
6.98ppb
NO2
0.31ppm
CO
AQI 21
Good
0.64μg/m³
PM2.5
3.78μg/m³
PM10
23.10ppb
O3
0.42ppb
SO2
2.98ppb
NO2
0.27ppm
CO
Air quality and pollutant data for Rhode Island, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Smithfield, Rhode Island is updated every hour for accuracy.
In the past 24 hours, the air quality in Smithfield, Rhode Island was at its worst at 03:00:00 on 2026-09-28.
In the last 24 hours, the best air quality in Smithfield, Rhode Island was observed at 09:00:00 on 2026-09-28.
As of now, the AQI in Smithfield, Rhode Island is 21, indicating Good conditions.
Smithfield, Rhode Island air has the highest levels of O3.
Poor air quality in Smithfield, Rhode Island means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Smithfield, Rhode Island are currently 0.598 μg/m3.
The PM10 concentration in Smithfield, Rhode Island is 2.214 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Smithfield, Rhode Island is 0.285 ppm.
Currently, Smithfield, Rhode Island has a sulfur dioxide (SO2) concentration of 0.382 ppb.
The current ozone (O3) level in Smithfield, Rhode Island at the moment is 22.571 ppm.
Nitrogen dioxide (NO2) level in Smithfield, Rhode Island at the moment is 2.861 ppb.
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