What is the air quality trend in Baton Rouge?

Over the past 14 days, Baton Rouge had an average AQI of 53 based on station measurements. The worst day was 2026-07-17 with AQI 99.

How is Baton Rouge air quality measured?

Air quality in Baton Rouge is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Baton Rouge, United States

Name: Baton Rouge Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Baton Rouge, United States.

Current AQI
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

244h

PM2.5 Station

244h · 2 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	49	6–82	13.2 µg/m³	15h	2
2026-07-20	60	17–112	18.1 µg/m³	15h	1
2026-07-19	57	11–154	17.9 µg/m³	21h	1
2026-07-18	72	6–165	24.9 µg/m³	17h	2
2026-07-17	99	3–231	52.9 µg/m³	19h	1
2026-07-16	65	13–392	31.8 µg/m³	21h	2
2026-07-15	40	20–70	10.1 µg/m³	19h	1
2026-07-14	35	2–74	8.8 µg/m³	16h	1
2026-07-13	34	8–55	8.3 µg/m³	15h	1
2026-07-12	38	9–67	9.3 µg/m³	15h	1
2026-07-11	34	14–74	8.7 µg/m³	17h	1
2026-07-10	36	9–69	9.1 µg/m³	16h	1
2026-07-09	60	11–494	36.6 µg/m³	17h	1
2026-07-08	67	9–495	35.1 µg/m³	21h	2

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