Stay updated with real-time air quality in Port St. John, Florida 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)
49
Good
Port St. John, Florida
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
8.70 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
29.84 μg/m³
0
55
155
255
425
605+
31.48 ppb
0
55
71
86
201
201+
1.71 ppb
0
36
76
186
605
1005+
5.83 ppb
0
54
101
361
1250
2050+
0.39 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Port St. John, Florida
Port St. John, Florida
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AQI 33
Good
6.25μg/m³
PM2.5
29.88μg/m³
PM10
21.37ppb
O3
0.58ppb
SO2
7.18ppb
NO2
0.31ppm
CO
AQI 33
Good
6.00μg/m³
PM2.5
28.03μg/m³
PM10
21.64ppb
O3
0.54ppb
SO2
7.07ppb
NO2
0.34ppm
CO
AQI 33
Good
6.08μg/m³
PM2.5
30.47μg/m³
PM10
22.51ppb
O3
0.60ppb
SO2
6.88ppb
NO2
0.31ppm
CO
AQI 33
Good
5.98μg/m³
PM2.5
28.72μg/m³
PM10
19.56ppb
O3
0.61ppb
SO2
6.88ppb
NO2
0.31ppm
CO
AQI 33
Good
5.99μg/m³
PM2.5
28.66μg/m³
PM10
19.50ppb
O3
0.61ppb
SO2
6.88ppb
NO2
0.31ppm
CO
AQI 33
Good
6.01μg/m³
PM2.5
30.03μg/m³
PM10
19.99ppb
O3
0.61ppb
SO2
6.96ppb
NO2
0.31ppm
CO
Air quality data and pollutant measurements for Florida, 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 Port St. John, Florida is updated every hour.
The worst air quality in Port St. John, Florida in the last 24 hours was observed at 08:00:00 on 2025-07-08.
In the last 24 hrs, the best air quality in Port St. John, Florida was observed at 11:00:00 on 2025-07-08.
The current air quality in Port St. John, Florida is 33, categorized as Good based on real-time data.
The most common pollutant in Port St. John, Florida is PM2.5.
If the air quality in Port St. John, Florida is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Port St. John, Florida is 6.382 μg/m3.
The current PM10 concentration at Port St. John, Florida is 25.468 μg/m3.
The current carbon monoxide (CO) concentration at Port St. John, Florida is 0.337 ppm.
The current sulfur dioxide (SO2) concentration at Port St. John, Florida is 0.689 ppb.
The current ozone (O3) concentration at Port St. John, Florida is 17.037 ppm.
The current nitrogen dioxide (NO2) concentration at Port St. John, Florida is 7.53 ppb.
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