Worst air pollution Baton Rouge, today and tomorrow
Today (20 September): Air quality in Baton Rouge is poor. AQI and PM10 are poor; PM2.5 is moderate; NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 AM (PM10: 68.2/100).
Tomorrow (21 September 2026): Air quality in Baton Rouge is moderate. AQI improves to moderate; PM10 decreases to moderate; all other pollutants stay as today. Pollution peaks around 8:00 AM (PM10: 51.1/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Baton Rouge's air quality reflects its position in the lower Mississippi petrochemical corridor, with one of the US's highest concentrations of oil refineries and chemical plants along the River Road contributing elevated PM2.5, SO₂, and benzene alongside heavy vehicle traffic on I-10 and I-12. The flat Gulf Coast terrain provides reasonable wind dispersal, though the density of industrial sources makes Baton Rouge one of the US's more industrially impacted cities.
Today - 20 September | Pollution peaks at 07:00
AQI:
Poor
68.2/100
PM2.5 (fine particles):
Moderate
47.3/100
PM10 (coarse particles):
Poor
68.2/100
NO2 (nitrogen dioxide):
Good
0.2/100
O3 (ozone):
Good
13.3/100
SO2 (sulfur dioxide):
Good
0.2/100
CO (carbon monoxide):
Good
0.4/100
HCHO (formaldehyde):
Good
0.8/100
PM1 (ultrafine particles):
Good
5.4/100
Levels show the poorest local air quality during the day
Tomorrow - 21 September | Pollution peaks at 08:00
AQI:
Moderate
51.1/100
PM2.5 (fine particles):
Moderate
41.3/100
PM10 (coarse particles):
Moderate
51.1/100
NO2 (nitrogen dioxide):
Good
0.3/100
O3 (ozone):
Good
13.2/100
SO2 (sulfur dioxide):
Good
0.2/100
CO (carbon monoxide):
Good
0.4/100
HCHO (formaldehyde):
Good
0.8/100
PM1 (ultrafine particles):
Good
4.1/100
Pollen forecast in Baton Rouge
View pollen forecastAir quality forecasts for neighbourhoods and landmarks in Baton Rouge
Frequently Asked Questions
Is air quality bad in Baton Rouge right now?
On 20 September 2026, overall air quality in Baton Rouge is poor. AQI is the main air quality indicator at 68.2/100. Pollution peaks around 7:00 AM (PM10: 68.2/100).
Will air quality be worse tomorrow in Baton Rouge?
On 21 September 2026, air quality conditions in Baton Rouge will be better than today, with AQI forecast at moderate at 51.1/100. Pollution peaks around 8:00 AM (PM10: 51.1/100).
When is air pollution at its worst in Baton Rouge?
Like most US cities, Baton Rouge sees air quality shift from season to season. Typically, the mildest, cleanest weather typically arrives in winter, while the long, hot, humid summer is the toughest stretch, compounded by industrial emissions. Hurricane season can occasionally disrupt normal pollution patterns, for better or worse depending on the storm.
Are air quality levels in Baton Rouge based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 20 September 2026 at 14:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.
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