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)
49
Good
Gretna, Louisiana
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.08 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
29.81 μg/m³
0
55
155
255
425
605+
22.16 ppb
0
55
71
86
201
201+
1.00 ppb
0
36
76
186
605
1005+
2.62 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Gretna, Louisiana
Gretna, Louisiana
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AQI 49
Good
9.06μg/m³
PM2.5
30.04μg/m³
PM10
22.28ppb
O3
1.00ppb
SO2
2.61ppb
NO2
0.23ppm
CO
AQI 49
Good
9.16μg/m³
PM2.5
28.71μg/m³
PM10
21.12ppb
O3
0.98ppb
SO2
2.68ppb
NO2
0.23ppm
CO
AQI 49
Good
9.48μg/m³
PM2.5
25.48μg/m³
PM10
19.76ppb
O3
0.96ppb
SO2
2.84ppb
NO2
0.23ppm
CO
AQI 49
Good
8.90μg/m³
PM2.5
32.00μg/m³
PM10
23.61ppb
O3
1.02ppb
SO2
2.50ppb
NO2
0.23ppm
CO
AQI 49
Good
9.18μg/m³
PM2.5
28.27μg/m³
PM10
20.52ppb
O3
0.97ppb
SO2
2.71ppb
NO2
0.23ppm
CO
AQI 49
Good
9.04μg/m³
PM2.5
30.13μg/m³
PM10
22.00ppb
O3
0.99ppb
SO2
2.59ppb
NO2
0.23ppm
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 2026-06-15.
In the last 24 hrs, the best air quality in Gretna, Louisiana was observed at 05:00:00 on 2026-06-15.
The current air quality in Gretna, Louisiana is 49, 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 9.084 μg/m3.
The current PM10 concentration at Gretna, Louisiana is 29.812 μg/m3.
The current carbon monoxide (CO) concentration at Gretna, Louisiana is 0.225 ppm.
The current sulfur dioxide (SO2) concentration at Gretna, Louisiana is 1.001 ppb.
The current ozone (O3) concentration at Gretna, Louisiana is 22.155 ppm.
The current nitrogen dioxide (NO2) concentration at Gretna, Louisiana is 2.62 ppb.
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