Stay updated with real-time air quality in Portsmouth, 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)
29
Good
Portsmouth, Rhode Island
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
4.27 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
18.85 μg/m³
0
55
155
255
425
605+
30.56 ppb
0
55
71
86
201
201+
0.37 ppb
0
36
76
186
605
1005+
5.65 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Portsmouth, Rhode Island
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AQI 29
Good
4.35μg/m³
PM2.5
19.79μg/m³
PM10
31.47ppb
O3
0.32ppb
SO2
5.94ppb
NO2
0.24ppm
CO
AQI 30
Good
4.83μg/m³
PM2.5
23.35μg/m³
PM10
31.70ppb
O3
0.40ppb
SO2
6.76ppb
NO2
0.24ppm
CO
AQI 27
Good
4.31μg/m³
PM2.5
19.33μg/m³
PM10
29.43ppb
O3
0.37ppb
SO2
5.18ppb
NO2
0.23ppm
CO
AQI 52
Moderate
6.94μg/m³
PM2.5
56.86μg/m³
PM10
32.21ppb
O3
0.41ppb
SO2
6.53ppb
NO2
0.24ppm
CO
AQI 30
Good
4.25μg/m³
PM2.5
19.26μg/m³
PM10
31.83ppb
O3
0.30ppb
SO2
5.98ppb
NO2
0.24ppm
CO
AQI 30
Good
4.34μg/m³
PM2.5
19.75μg/m³
PM10
31.60ppb
O3
0.31ppb
SO2
5.94ppb
NO2
0.24ppm
CO
Air quality data and pollutant measurements for Rhode Island, 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 Portsmouth, Rhode Island is updated every hour.
The worst air quality in Portsmouth, Rhode Island in the last 24 hours was observed at 08:00:00 on 2025-06-06.
In the last 24 hrs, the best air quality in Portsmouth, Rhode Island was observed at 09:00:00 on 2025-06-07.
The current air quality in Portsmouth, Rhode Island is 29, categorized as Good based on real-time data.
The most common pollutant in Portsmouth, Rhode Island is O3.
If the air quality in Portsmouth, Rhode Island is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Portsmouth, Rhode Island is 4.269 μg/m3.
The current PM10 concentration at Portsmouth, Rhode Island is 18.848 μg/m3.
The current carbon monoxide (CO) concentration at Portsmouth, Rhode Island is 0.205 ppm.
The current sulfur dioxide (SO2) concentration at Portsmouth, Rhode Island is 0.374 ppb.
The current ozone (O3) concentration at Portsmouth, Rhode Island is 30.563 ppm.
The current nitrogen dioxide (NO2) concentration at Portsmouth, Rhode Island is 5.648 ppb.
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