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)
58
Moderate
Port St. John, Florida
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
13.35 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
45.02 μg/m³
0
55
155
255
425
605+
26.66 ppb
0
55
71
86
201
201+
0.45 ppb
0
36
76
186
605
1005+
4.82 ppb
0
54
101
361
1250
2050+
0.32 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 58
Moderate
12.62μg/m³
PM2.5
46.69μg/m³
PM10
26.92ppb
O3
0.46ppb
SO2
4.67ppb
NO2
0.32ppm
CO
AQI 58
Moderate
13.47μg/m³
PM2.5
55.23μg/m³
PM10
32.36ppb
O3
0.43ppb
SO2
5.05ppb
NO2
0.35ppm
CO
AQI 56
Moderate
11.89μg/m³
PM2.5
54.36μg/m³
PM10
26.93ppb
O3
0.47ppb
SO2
4.66ppb
NO2
0.32ppm
CO
AQI 58
Moderate
12.56μg/m³
PM2.5
40.05μg/m³
PM10
30.11ppb
O3
0.47ppb
SO2
4.67ppb
NO2
0.32ppm
CO
AQI 58
Moderate
12.52μg/m³
PM2.5
40.08μg/m³
PM10
30.02ppb
O3
0.48ppb
SO2
4.75ppb
NO2
0.32ppm
CO
AQI 58
Moderate
12.88μg/m³
PM2.5
40.82μg/m³
PM10
30.00ppb
O3
0.47ppb
SO2
4.61ppb
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 06:00:00 on 2025-06-06.
In the last 24 hrs, the best air quality in Port St. John, Florida was observed at 10:00:00 on 2025-06-06.
The current air quality in Port St. John, Florida is 58, categorized as Moderate 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 13.354 μg/m3.
The current PM10 concentration at Port St. John, Florida is 45.018 μg/m3.
The current carbon monoxide (CO) concentration at Port St. John, Florida is 0.32 ppm.
The current sulfur dioxide (SO2) concentration at Port St. John, Florida is 0.445 ppb.
The current ozone (O3) concentration at Port St. John, Florida is 26.656 ppm.
The current nitrogen dioxide (NO2) concentration at Port St. John, Florida is 4.818 ppb.
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