Stay updated with real-time air quality in Gretna, Louisiana 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)
44
Good
Gretna, Louisiana
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
7.72 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
34.34 μg/m³
0
55
155
255
425
605+
11.02 ppb
0
55
71
86
201
201+
0.32 ppb
0
36
76
186
605
1005+
6.99 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Gretna, Louisiana
Gretna, Louisiana
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AQI 38
Good
6.91μg/m³
PM2.5
30.47μg/m³
PM10
22.17ppb
O3
0.41ppb
SO2
1.34ppb
NO2
0.13ppm
CO
AQI 38
Good
6.80μg/m³
PM2.5
30.10μg/m³
PM10
22.44ppb
O3
0.41ppb
SO2
1.35ppb
NO2
0.13ppm
CO
AQI 38
Good
6.67μg/m³
PM2.5
29.75μg/m³
PM10
22.54ppb
O3
0.41ppb
SO2
1.35ppb
NO2
0.13ppm
CO
AQI 38
Good
6.99μg/m³
PM2.5
30.68μg/m³
PM10
22.04ppb
O3
0.41ppb
SO2
1.34ppb
NO2
0.13ppm
CO
AQI 38
Good
6.72μg/m³
PM2.5
29.86μg/m³
PM10
22.64ppb
O3
0.41ppb
SO2
1.35ppb
NO2
0.13ppm
CO
AQI 38
Good
6.87μg/m³
PM2.5
30.27μg/m³
PM10
22.38ppb
O3
0.41ppb
SO2
1.34ppb
NO2
0.13ppm
CO
Air quality data and pollutant measurements for Louisiana, 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 Gretna, Louisiana is updated every hour.
The worst air quality in Gretna, Louisiana in the last 24 hours was observed at 11:00:00 on 2025-07-19.
In the last 24 hrs, the best air quality in Gretna, Louisiana was observed at 10:00:00 on 2025-07-19.
The current air quality in Gretna, Louisiana is 38, categorized as Good based on real-time data.
The most common pollutant in Gretna, Louisiana is PM2.5.
If the air quality in Gretna, Louisiana is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Gretna, Louisiana is 6.899 μg/m3.
The current PM10 concentration at Gretna, Louisiana is 30.447 μg/m3.
The current carbon monoxide (CO) concentration at Gretna, Louisiana is 0.129 ppm.
The current sulfur dioxide (SO2) concentration at Gretna, Louisiana is 0.41 ppb.
The current ozone (O3) concentration at Gretna, Louisiana is 22.175 ppm.
The current nitrogen dioxide (NO2) concentration at Gretna, Louisiana is 1.345 ppb.
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