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)
34
Good
Smithfield, Rhode Island
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.74 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
24.09 μg/m³
0
55
155
255
425
605+
37.30 ppb
0
55
71
86
201
201+
0.60 ppb
0
36
76
186
605
1005+
2.95 ppb
0
54
101
361
1250
2050+
0.29 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Smithfield, Rhode Island
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AQI 34
Good
4.80μg/m³
PM2.5
20.16μg/m³
PM10
37.03ppb
O3
0.23ppb
SO2
3.24ppb
NO2
0.32ppm
CO
AQI 31
Good
4.41μg/m³
PM2.5
14.70μg/m³
PM10
33.80ppb
O3
0.37ppb
SO2
2.88ppb
NO2
0.30ppm
CO
AQI 31
Good
3.84μg/m³
PM2.5
9.03μg/m³
PM10
33.29ppb
O3
0.38ppb
SO2
2.36ppb
NO2
0.30ppm
CO
AQI 34
Good
4.80μg/m³
PM2.5
21.06μg/m³
PM10
37.09ppb
O3
0.23ppb
SO2
3.57ppb
NO2
0.35ppm
CO
AQI 34
Good
5.01μg/m³
PM2.5
21.70μg/m³
PM10
37.06ppb
O3
0.23ppb
SO2
3.76ppb
NO2
0.37ppm
CO
AQI 33
Good
5.83μg/m³
PM2.5
19.42μg/m³
PM10
36.11ppb
O3
0.36ppb
SO2
2.89ppb
NO2
0.30ppm
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 2026-08-08.
In the last 24 hours, the best air quality in Smithfield, Rhode Island was observed at 02:00:00 on 2026-08-08.
As of now, the AQI in Smithfield, Rhode Island is 31, 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 3.839 μg/m3.
The PM10 concentration in Smithfield, Rhode Island is 17.274 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Smithfield, Rhode Island is 0.327 ppm.
Currently, Smithfield, Rhode Island has a sulfur dioxide (SO2) concentration of 0.336 ppb.
The current ozone (O3) level in Smithfield, Rhode Island at the moment is 34.349 ppm.
Nitrogen dioxide (NO2) level in Smithfield, Rhode Island at the moment is 3.09 ppb.
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