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

The latest data Last 7 days
Current data from stations: FR15048
Locations: « Arrondissement de Grenoble Crolles
Pollution and air quality forecast for Crolles. Today is Friday, May 2, 2025. The following air pollution values have been recorded for Crolles:
  1. particulate matter (PM2.5) dust - 17 (Moderate)
  2. ozone (O3) - 3 (Good)
  3. particulate matter (PM10) suspended dust - 18 (Good)
  4. nitrogen dioxide (NO2) - 36 (Good)
Real-time Air Quality Index (AQI) for Crolles, Wednesday, January 17, 2024: 2.

air quality index: 1
AQI 2 Moderate

What is the air quality in Crolles today? Is the air polluted in Crolles?. Is there smog?

Today (Wednesday, January 17, 2024) air quality is moderate in Crolles. Some pollutants in Crolles may slightly affect very few hypersensitive individuals. Air pollutants in Crolles may cause minor breathing discomfort to sensitive people.


What is the current level of PM2.5 in Crolles? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 17 (Moderate) For comparison, the highest level of PM2.5 in Crolles in the last 7 days was: 37 (Sunday, January 14, 2024) and the lowest: 18 (Wednesday, January 17, 2024).

How is the O3 level today in Crolles? (ozone (O3))
3 (Good)

What is the level of PM10 today in Crolles? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Crolles is: 18 (Good) The highest PM10 values usually occur in month: 32 (January 2020). The lowest value of particulate matter PM10 pollution in Crolles is usually recorded in: March (8.4).

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



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

PM2,5 17 (Moderate)

O3 3 (Good)

PM10 18 (Good)

NO2 36 (Good)

23 (Good)

Data on air pollution from recent days in Crolles

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 8
Good		 15
Good		 22
Good		 22
Good		 7
Good		 3
Good		 14
Good		 6
Good
no 5
Good		 2
Good		 1
Good		 5
Good		 7
Good		 24
Good		 5
Good		 4
Good
pm25 25
Moderate		 22
Moderate		 21
Moderate		 26
Moderate		 37
Unhealthy for Sensitive Groups		 36
Unhealthy for Sensitive Groups		 19
Moderate		 18
Moderate
no2 20
Good		 21
Good		 19
Good		 19
Good		 26
Good		 33
Good		 25
Good		 22
Good
pm10 26
Moderate		 24
Moderate		 23
Moderate		 28
Moderate		 39
Moderate		 38
Moderate		 20
Moderate		 20
Moderate
data source »

Air pollution in Crolles 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
o3 54 (Good) 65 (Good) 52 (Good) 31 (Good) 10 (Good) 19 (Good) 14 (Good) 23 (Good) 43 (Good) 51 (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) 76 (Moderate) 91 (Moderate) 70 (Good) 58 (Good) 66 (Good) 44 (Good) 30 (Good) 17 (Good) 16 (Good) 20 (Good) 29 (Good) 35 (Good)
no2 3.9 (Good) 6.6 (Good) 11 (Good) 21 (Good) 32 (Good) 25 (Good) 22 (Good) 7.7 (Good) 9.2 (Good) 7.5 (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) 7.6 (Good) 11 (Good) 5.3 (Good) 6.6 (Good) 13 (Good) 23 (Good) 21 (Good) 24 (Good) 30 (Good) 23 (Good) 15 (Good) 15 (Good)
pm10 - (Good) - (Good) 8.4 (Good) 17 (Good) 32 (Moderate) 18 (Good) 16 (Good) 11 (Good) 8.6 (Good) 9.9 (Good) 13 (Good) 12 (Good) 11 (Good) 15 (Good) 15 (Good) 28 (Moderate) 28 (Moderate) 27 (Moderate) 26 (Moderate) 23 (Moderate) 19 (Good) 18 (Good) 19 (Good) 15 (Good) 13 (Good) 14 (Good) - (Good) - (Good) 16 (Good) 19 (Good) 18 (Good) 18 (Good) 23 (Moderate)
data source »

FR15048

Wednesday, January 17, 2024, 9:00 AM

PM2,5 17 (Moderate)

particulate matter (PM2.5) dust

O3 3.3 (Good)

ozone (O3)

PM10 18 (Good)

particulate matter (PM10) suspended dust

NO2 36 (Good)

nitrogen dioxide (NO2)

23 (Good)

index_name_no

FR15048

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 6 14 3.4 6.8 22 22 15 8.3
no 4.2 5.4 24 7 4.9 0.72 1.7 5.5
pm25 18 19 36 37 26 21 22 25
no2 22 25 33 26 19 19 21 20
pm10 20 20 38 39 28 23 24 26

FR15048

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 - - 8.4 17 32 18 16 11 8.6 9.9 13 12 11 15 15 28 28 27 26 23 19 18 19 15 13 14 - - 16 19 18 18 23
no2 3.9 6.6 11 21 32 25 22 7.7 9.2 7.5 - - - - - - - - - - - 7.6 11 5.3 6.6 13 23 21 24 30 23 15 15
o3 54 65 52 31 10 19 14 23 43 51 - - - - - - - - - - - 76 91 70 58 66 44 30 17 16 20 29 35

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