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)
52
Moderate
Gretna, Louisiana
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
10.32 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
45.70 μg/m³
0
55
155
255
425
605+
20.38 ppb
0
55
71
86
201
201+
1.43 ppb
0
36
76
186
605
1005+
7.50 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Gretna, Louisiana
Gretna, Louisiana
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AQI 52
Moderate
10.20μg/m³
PM2.5
45.16μg/m³
PM10
20.55ppb
O3
1.42ppb
SO2
7.44ppb
NO2
0.18ppm
CO
AQI 52
Moderate
10.04μg/m³
PM2.5
44.43μg/m³
PM10
20.99ppb
O3
1.41ppb
SO2
7.28ppb
NO2
0.18ppm
CO
AQI 54
Moderate
11.49μg/m³
PM2.5
50.93μg/m³
PM10
19.13ppb
O3
1.44ppb
SO2
7.95ppb
NO2
0.18ppm
CO
AQI 52
Moderate
9.51μg/m³
PM2.5
42.26μg/m³
PM10
21.01ppb
O3
1.42ppb
SO2
7.22ppb
NO2
0.18ppm
CO
AQI 52
Moderate
10.16μg/m³
PM2.5
45.13μg/m³
PM10
20.89ppb
O3
1.39ppb
SO2
7.27ppb
NO2
0.18ppm
CO
AQI 49
Good
9.07μg/m³
PM2.5
39.85μg/m³
PM10
22.19ppb
O3
1.39ppb
SO2
6.83ppb
NO2
0.18ppm
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 02:00:00 on 2025-12-10.
In the last 24 hrs, the best air quality in Gretna, Louisiana was observed at 12:00:00 on 2025-12-09.
The current air quality in Gretna, Louisiana is 52, categorized as Moderate 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 10.321 μg/m3.
The current PM10 concentration at Gretna, Louisiana is 45.698 μg/m3.
The current carbon monoxide (CO) concentration at Gretna, Louisiana is 0.182 ppm.
The current sulfur dioxide (SO2) concentration at Gretna, Louisiana is 1.426 ppb.
The current ozone (O3) concentration at Gretna, Louisiana is 20.38 ppm.
The current nitrogen dioxide (NO2) concentration at Gretna, Louisiana is 7.501 ppb.
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