Air Pollution in Saint-Martin-d'Hères: Real-time Air Quality Index and smog alert.

The latest data Last 7 days
Current data from stations: St Martin d'Heres
Locations: « Arrondissement de Grenoble Saint-Martin-d'Hères
Pollution and air quality forecast for Saint-Martin-d'Hères. Today is Friday, May 2, 2025. The following air pollution values have been recorded for Saint-Martin-d'Hères:
  1. ozone (O3) - 13 (Good)
  2. particulate matter (PM2.5) dust - 9 (Good)
  3. nitrogen dioxide (NO2) - 37 (Good)
  4. particulate matter (PM10) suspended dust - 14 (Good)
Real-time Air Quality Index (AQI) for Saint-Martin-d'Hères, Wednesday, January 17, 2024: 1.

air quality index: 0
AQI 1 Good

What is the air quality in Saint-Martin-d'Hères today? Is the air polluted in Saint-Martin-d'Hères?. 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-Martin-d'Hères.


How is the O3 level today in Saint-Martin-d'Hères? (ozone (O3))
13 (Good)

What is the current level of PM2.5 in Saint-Martin-d'Hères? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 9 (Good) For comparison, the highest level of PM2.5 in Saint-Martin-d'Hères in the last 7 days was: 31 (Sunday, January 14, 2024) and the lowest: 14 (Wednesday, January 17, 2024).

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

What is the level of PM10 today in Saint-Martin-d'Hères? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Saint-Martin-d'Hères is: 14 (Good) The highest PM10 values usually occur in month: 34 (January 2020). The lowest value of particulate matter PM10 pollution in Saint-Martin-d'Hères is usually recorded in: March (9.9).



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

O3 13 (Good)

PM2,5 9 (Good)

NO2 37 (Good)

PM10 14 (Good)

8 (Good)

Data on air pollution from recent days in Saint-Martin-d'Hères

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
o3 4
Good		 8
Good		 15
Good		 21
Good		 5
Good		 2
Good		 16
Good		 15
Good
no 10
Good		 6
Good		 3
Good		 7
Good		 10
Good		 22
Good		 9
Good		 3
Good
no2 27
Good		 25
Good		 24
Good		 21
Good		 29
Good		 37
Good		 30
Good		 26
Good
pm10 29
Moderate		 28
Moderate		 28
Moderate		 25
Moderate		 33
Moderate		 34
Moderate		 18
Good		 16
Good
pm25 27
Moderate		 26
Moderate		 24
Moderate		 23
Moderate		 31
Moderate		 31
Moderate		 15
Moderate		 14
Moderate
data source »

Air pollution in Saint-Martin-d'Hères 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 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
no2 7.5 (Good) 9.8 (Good) 17 (Good) 33 (Good) 44 (Moderate) 29 (Good) 33 (Good) 18 (Good) 14 (Good) 9.6 (Good) 22 (Good) 14 (Good) 15 (Good) 12 (Good) 13 (Good) 17 (Good) 26 (Good) 34 (Good) 38 (Good) 38 (Good) 37 (Good) 28 (Good) 27 (Good)
o3 52 (Good) 66 (Good) 50 (Good) 25 (Good) 14 (Good) 21 (Good) 14 (Good) 25 (Good) 48 (Good) 61 (Good) - (Good) 74 (Moderate) 89 (Moderate) 61 (Good) 51 (Good) 67 (Good) 45 (Good) 27 (Good) 20 (Good) 17 (Good) 21 (Good) 25 (Good) 37 (Good)
pm10 - (Good) - (Good) 9.9 (Good) 22 (Moderate) 34 (Moderate) 19 (Good) 18 (Good) 16 (Good) 15 (Good) 14 (Good) 18 (Good) 15 (Good) 21 (Moderate) 16 (Good) 16 (Good) 19 (Good) - (Good) - (Good) 15 (Good) 17 (Good) 18 (Good) 21 (Moderate) 27 (Moderate)
data source »

St Martin d'Heres

Wednesday, January 17, 2024, 9:00 AM

O3 13 (Good)

ozone (O3)

PM2,5 8.7 (Good)

particulate matter (PM2.5) dust

NO2 37 (Good)

nitrogen dioxide (NO2)

PM10 14 (Good)

particulate matter (PM10) suspended dust

7.7 (Good)

index_name_no

St Martin d'Heres

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
o3 15 16 2.2 5 21 15 7.9 4.2
no 3.5 8.6 22 9.9 6.8 2.9 6.1 10
no2 26 30 37 29 21 24 25 27
pm10 16 18 34 33 25 28 28 29
pm25 14 15 31 31 23 24 26 27

FR15038

index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 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 - - 9.9 22 34 19 18 16 15 14 18 15 21 16 16 19 - - 15 17 18 21 27
no2 7.5 9.8 17 33 44 29 33 18 14 9.6 22 14 15 12 13 17 26 34 38 38 37 28 27
o3 52 66 50 25 14 21 14 25 48 61 - 74 89 61 51 67 45 27 20 17 21 25 37

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