Stay updated with real-time air quality in Marrero, 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
Marrero, Louisiana
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.33 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
41.39 μg/m³
0
55
155
255
425
605+
25.93 ppb
0
55
71
86
201
201+
1.88 ppb
0
36
76
186
605
1005+
2.58 ppb
0
54
101
361
1250
2050+
0.47 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Marrero, Louisiana
Marrero, Louisiana
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AQI 33
Good
5.75μg/m³
PM2.5
25.00μg/m³
PM10
25.72ppb
O3
2.00ppb
SO2
2.95ppb
NO2
0.42ppm
CO
AQI 33
Good
5.72μg/m³
PM2.5
24.79μg/m³
PM10
25.96ppb
O3
2.05ppb
SO2
2.98ppb
NO2
0.42ppm
CO
AQI 33
Good
5.76μg/m³
PM2.5
25.05μg/m³
PM10
25.99ppb
O3
2.02ppb
SO2
2.95ppb
NO2
0.42ppm
CO
AQI 44
Good
7.83μg/m³
PM2.5
36.97μg/m³
PM10
21.89ppb
O3
1.89ppb
SO2
3.09ppb
NO2
0.43ppm
CO
AQI 33
Good
5.77μg/m³
PM2.5
24.97μg/m³
PM10
25.11ppb
O3
1.97ppb
SO2
2.97ppb
NO2
0.42ppm
CO
AQI 33
Good
5.72μg/m³
PM2.5
24.79μg/m³
PM10
26.00ppb
O3
2.05ppb
SO2
2.98ppb
NO2
0.42ppm
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 Marrero, Louisiana is updated every hour.
The worst air quality in Marrero, Louisiana in the last 24 hours was observed at 03:00:00 on 2026-10-08.
In the last 24 hrs, the best air quality in Marrero, Louisiana was observed at 07:00:00 on 2026-10-07.
The current air quality in Marrero, Louisiana is 33, categorized as Good based on real-time data.
The most common pollutant in Marrero, Louisiana is PM2.5.
If the air quality in Marrero, Louisiana is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Marrero, Louisiana is 5.77 μg/m3.
The current PM10 concentration at Marrero, Louisiana is 25.11 μg/m3.
The current carbon monoxide (CO) concentration at Marrero, Louisiana is 0.424 ppm.
The current sulfur dioxide (SO2) concentration at Marrero, Louisiana is 1.962 ppb.
The current ozone (O3) concentration at Marrero, Louisiana is 25.604 ppm.
The current nitrogen dioxide (NO2) concentration at Marrero, Louisiana is 2.921 ppb.
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