Air Pollution in Saint-Louis: Real-time Air Quality Index and smog alert.

The latest data Last 7 days
Current data from stations: C.C.3 Frontières
Locations: « Arrondissement de Mulhouse Saint-Louis
Pollution and air quality forecast for Saint-Louis. Today is Friday, May 2, 2025. The following air pollution values have been recorded for Saint-Louis:
  1. nitrogen dioxide (NO2) - 23 (Good)
Real-time Air Quality Index (AQI) for Saint-Louis, Wednesday, January 17, 2024: 1.

air quality index: 0
AQI 1 Good

What is the air quality in Saint-Louis today? Is the air polluted in Saint-Louis?. Is there smog?

Today (Wednesday, January 17, 2024) air quality is good. The air quality has no effect on health. Everyone can continue their outdoor activities normally in Saint-Louis.


How high is the level of NO2? (nitrogen dioxide (NO2))
23 (Good)



Current data Wednesday, January 17, 2024, 9:00 AM

NO2 23 (Good)

2 (Good)

Data on air pollution from recent days in Saint-Louis

index 2024-01-10 2024-01-11 2024-01-12 2024-01-13 2024-01-14 2024-01-15 2024-01-16 2024-01-17
no 11
Good		 15
Good		 33
Good		 7
Good		 5
Good		 2
Good		 31
Good		 5
Good
no2 32
Good		 40
Moderate		 41
Moderate		 35
Good		 28
Good		 17
Good		 42
Moderate		 28
Good
data source »

Air pollution in Saint-Louis from September 2017 to May 2020

index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-12 2018-11 2018-10 2018-09 2018-08 2018-07 2018-06 2018-05 2018-04 2018-03 2018-02 2018-01 2017-12 2017-11 2017-10 2017-09
pm10 12 (Good) 20 (Moderate) 15 (Good) 11 (Good) 21 (Moderate) 16 (Good) 13 (Good) 10 (Good) 11 (Good) 12 (Good) 17 (Good) 17 (Good) 13 (Good) 19 (Good) 15 (Good) 26 (Moderate) 19 (Good) 16 (Good) 21 (Moderate) 24 (Moderate) 17 (Good) 15 (Good) 17 (Good) 14 (Good) 15 (Good) 18 (Good) 20 (Good) 22 (Moderate) 15 (Good) 13 (Good) 17 (Good) 14 (Good) 19 (Good)
no2 11 (Good) 12 (Good) 15 (Good) 18 (Good) 27 (Good) 25 (Good) 24 (Good) 17 (Good) 14 (Good) 11 (Good) 13 (Good) 14 (Good) 14 (Good) 22 (Good) 20 (Good) 37 (Good) 24 (Good) 23 (Good) 26 (Good) 18 (Good) 20 (Good) 14 (Good) 14 (Good) 12 (Good) 16 (Good) 20 (Good) 25 (Good) 22 (Good) 22 (Good) 22 (Good) 27 (Good) 25 (Good) 27 (Good)
o3 - (Good) - (Good) - (Good) 45 (Good) 19 (Good) 28 (Good) 23 (Good) 27 (Good) 44 (Good) 60 (Good) 78 (Moderate) 73 (Moderate) 62 (Good) 54 (Good) 56 (Good) 24 (Good) 31 (Good) 26 (Good) 11 (Good) 29 (Good) 51 (Good) 74 (Moderate) 86 (Moderate) 68 (Good) 68 (Good) 62 (Good) 40 (Good) 37 (Good) 35 (Good) 32 (Good) 21 (Good) 27 (Good) 31 (Good)
data source »

C.C.3 Frontières

Wednesday, January 17, 2024, 9:00 AM

NO2 23 (Good)

nitrogen dioxide (NO2)

1.6 (Good)

index_name_no

C.C.3 Frontières

index 2024-01-17 2024-01-16 2024-01-15 2024-01-14 2024-01-13 2024-01-12 2024-01-11 2024-01-10
no 4.8 31 2.1 4.8 6.6 33 15 11
no2 28 42 17 28 35 41 40 32

FR16060

index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-12 2018-11 2018-10 2018-09 2018-08 2018-07 2018-06 2018-05 2018-04 2018-03 2018-02 2018-01 2017-12 2017-11 2017-10 2017-09
pm10 12 20 15 11 21 16 13 10 11 12 17 17 13 19 15 26 19 16 21 24 17 15 17 14 15 18 20 22 15 13 17 14 19
no2 11 12 15 18 27 25 24 17 14 11 13 14 14 22 20 37 24 23 26 18 20 14 14 12 16 20 25 22 22 22 27 25 27
o3 - - - 45 19 28 23 27 44 60 78 73 62 54 56 24 31 26 11 29 51 74 86 68 68 62 40 37 35 32 21 27 31

* Pollution data source: https://openaq.org (EEA France) The data is licensed under CC-By 4.0