Smog in Rennes — Live Data: AQI, Fine Dust, Wind, UV and Health Advice
- particulate matter (PM2.5) dust - 3 (Good)
- particulate matter (PM10) suspended dust - 5 (Good)
- ozone (O3) - 56 (Good)
- nitrogen dioxide (NO2) - 3 (Good)
- sulfur dioxide (SO2) - 0 (Good)
- carbon monoxide (CO) - 143 (Good)
What is the air quality in Rennes today? Is the air polluted in Rennes?. Is there smog?
What is the current level of PM2.5 in Rennes? (particulate matter (PM2.5) dust)
Today's PM2.5 level is:
3 (Good)
For comparison, the highest level of PM2.5 in Rennes in the last 7 days was: 6 (Tuesday, August 25, 2026) and the lowest: 3 (Thursday, August 27, 2026).
The highest PM2.5 values were recorded: 22 (February 2019).
The lowest level of particulate matter PM2.5 pollution occurs in month: June (5.3).
What is the level of PM10 today in Rennes? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Rennes is:
5 (Good)
The highest PM10 values usually occur in month: 28 (February 2019).
The lowest value of particulate matter PM10 pollution in Rennes is usually recorded in: June (11).
How is the O3 level today in Rennes? (ozone (O3))
56 (Good)
How high is the level of NO2? (nitrogen dioxide (NO2))
3 (Good)
What is the level of SO2 pollution? (sulfur dioxide (SO2))
0 (Good)
How high is the CO level? (carbon monoxide (CO))
143 (Good)
Current data Thursday, August 27, 2026 at 3:00 AM
PM2,5 3 (Good)
PM10 5 (Good)
O3 56 (Good)
NO2 3 (Good)
SO2 0 (Good)
CO 143 (Good)
Data on air pollution from recent days in Rennes
index
2026-08-27
2026-08-26
2026-08-25
2026-08-24
2026-08-23
2026-08-22
2026-08-21
2026-08-20
pm25
3
Good
5
Good
6
Good
5
Good
4
Good
5
Good
4
Good
4
Good
pm10
6
Good
9
Good
9
Good
7
Good
8
Good
8
Good
8
Good
11
Good
o3
65
Good
65
Good
64
Good
74
Moderate
67
Good
62
Good
60
Good
57
Good
no2
3
Good
5
Good
5
Good
3
Good
2
Good
4
Good
4
Good
3
Good
so2
0
Good
0
Good
0
Good
0
Good
0
Good
0
Good
0
Good
0
Good
co
148
Good
151
Good
161
Good
166
Good
156
Good
160
Good
144
Good
147
Good
data source »
Air pollution in Rennes 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
14 (Good)
21 (Moderate)
19 (Good)
16 (Good)
17 (Good)
17 (Good)
14 (Good)
13 (Good)
16 (Good)
14 (Good)
12 (Good)
11 (Good)
12 (Good)
19 (Good)
18 (Good)
28 (Moderate)
18 (Good)
17 (Good)
15 (Good)
13 (Good)
- (Good)
- (Good)
- (Good)
- (Good)
- (Good)
- (Good)
- (Good)
- (Good)
- (Good)
- (Good)
23 (Moderate)
20 (Good)
17 (Good)
pm25
8.1 (Good)
14 (Moderate)
12 (Good)
7.2 (Good)
11 (Good)
11 (Good)
9 (Good)
6.3 (Good)
5.8 (Good)
6.5 (Good)
5.5 (Good)
5.3 (Good)
7.1 (Good)
14 (Moderate)
12 (Good)
22 (Moderate)
13 (Good)
12 (Good)
14 (Moderate)
11 (Good)
11 (Good)
7.5 (Good)
8.8 (Good)
9 (Good)
13 (Good)
12 (Good)
9.7 (Good)
11 (Good)
7.7 (Good)
13 (Good)
13 (Moderate)
9.8 (Good)
9.1 (Good)
no2
7.6 (Good)
10 (Good)
16 (Good)
20 (Good)
27 (Good)
25 (Good)
25 (Good)
17 (Good)
15 (Good)
14 (Good)
17 (Good)
17 (Good)
19 (Good)
20 (Good)
23 (Good)
31 (Good)
31 (Good)
23 (Good)
27 (Good)
27 (Good)
23 (Good)
16 (Good)
18 (Good)
19 (Good)
19 (Good)
22 (Good)
26 (Good)
31 (Good)
26 (Good)
35 (Good)
31 (Good)
24 (Good)
25 (Good)
o3
64 (Good)
74 (Moderate)
65 (Good)
61 (Good)
43 (Good)
41 (Good)
35 (Good)
41 (Good)
50 (Good)
58 (Good)
67 (Good)
69 (Good)
67 (Good)
63 (Good)
60 (Good)
31 (Good)
36 (Good)
38 (Good)
31 (Good)
42 (Good)
56 (Good)
55 (Good)
70 (Good)
60 (Good)
75 (Moderate)
63 (Good)
51 (Good)
39 (Good)
48 (Good)
33 (Good)
29 (Good)
33 (Good)
35 (Good)
data source »
Quality of life in Rennes
Green and Parks in the City
Rennes
59%
Andorra: 69%
Switzerland: 76%
Luxembourg: 83%
Belgium: 64%
Liechtenstein: 88%
particulate matter PM2.5
Rennes
11 (Good)
Pleasure of spending time in the city
Rennes
70%
Andorra: 84%
Switzerland: 84%
Luxembourg: 85%
Belgium: 64%
Liechtenstein: 94%
particulate matter PM10
Rennes
21 (Moderate)
Air Pollution
Rennes
40%
Andorra: 29%
Switzerland: 20%
Luxembourg: 19%
Belgium: 45%
Liechtenstein: 6.3%
Garbage Disposal
Rennes
67%
Andorra: 89%
Switzerland: 82%
Luxembourg: 84%
Belgium: 54%
Liechtenstein: 100%
Availability and quality of drinking water
Rennes
75%
Andorra: 100%
Switzerland: 90%
Luxembourg: 83%
Belgium: 70%
Liechtenstein: 100%
Cleanliness and tidiness
Rennes
53%
Andorra: 75%
Switzerland: 82%
Luxembourg: 82%
Belgium: 46%
Liechtenstein: 94%
Noise and Light pollution
Rennes
56%
Andorra: 29%
Switzerland: 38%
Luxembourg: 29%
Belgium: 54%
Liechtenstein: 19%
Water Pollution
Rennes
43%
Andorra: 19%
Switzerland: 19%
Luxembourg: 19%
Belgium: 42%
Liechtenstein: 0%
Source: Numbeo
Rennes
Thursday, August 27, 2026 at 3:00 AM
PM2,5 3.4 (Good)
particulate matter (PM2.5) dust
PM10 5.1 (Good)
particulate matter (PM10) suspended dust
O3 56 (Good)
ozone (O3)
NO2 3 (Good)
nitrogen dioxide (NO2)
SO2 0.2 (Good)
sulfur dioxide (SO2)
CO 143 (Good)
carbon monoxide (CO)
Rennes
index
2026-08-20
2026-08-21
2026-08-22
2026-08-23
2026-08-24
2026-08-25
2026-08-26
2026-08-27
pm25
4.4
3.7
5.1
4.3
4.8
5.6
5.2
3.1
pm10
11
7.7
8.4
7.9
7.5
8.8
9.2
6.3
o3
57
60
62
67
74
64
65
65
no2
3
3.8
3.9
2.3
3.2
5.3
4.7
3.4
so2
0.19
0.2
0.24
0.29
0.43
0.32
0.3
0.24
co
147
144
160
156
166
161
151
148
FR19002
2017-09 2020-05
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
pm25
6.5
13
12
7
11
11
9.6
6
5.9
6.2
6.8
6.6
8.4
14
12
24
-
-
-
-
12
8.2
11
11
15
15
12
12
9.5
13
13
9.8
9.1
pm10
13
21
20
18
19
19
16
16
17
15
18
15
14
19
20
31
19
17
-
-
-
-
-
-
-
-
-
-
-
-
23
20
17
no2
7.3
9.3
15
19
25
22
24
20
16
12
14
15
16
15
19
35
34
22
23
24
22
14
17
18
20
20
21
30
24
32
31
25
31
FR19007
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
no2
8.8
13
20
26
34
33
32
17
21
21
28
27
29
29
32
25
33
25
33
38
32
23
26
30
28
31
38
42
37
46
42
32
30
FR19010
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
no2
6.6
7.9
13
15
22
19
20
14
9.7
7.8
8.1
9.5
11
16
16
33
26
21
24
20
15
11
11
10
11
16
19
22
17
26
21
15
13
o3
64
74
65
61
43
41
35
41
50
58
67
69
67
63
60
31
36
38
31
42
56
55
70
60
75
63
51
39
48
33
29
33
35
FR19017
2018-01 2020-05
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
pm25
9.7
15
13
7.3
11
11
8.4
6.6
5.6
6.8
4.3
3.9
5.8
14
11
19
13
12
14
11
9.3
6.9
6.9
6.5
11
9.3
7.3
9.6
5.9
pm10
15
21
18
14
15
15
12
11
15
13
7.3
6.1
8.8
19
16
26
17
17
15
13
-
-
-
-
-
-
-
-
-
* Pollution data source:
https://openaq.org
(EEA France)
The data is licensed under CC-By 4.0
🌦️ Weather · 16-day Forecast — France
PM2,5 3 (Good)
PM10 5 (Good)
O3 56 (Good)
NO2 3 (Good)
SO2 0 (Good)
CO 143 (Good)
Data on air pollution from recent days in Rennes
| index | 2026-08-27 | 2026-08-26 | 2026-08-25 | 2026-08-24 | 2026-08-23 | 2026-08-22 | 2026-08-21 | 2026-08-20 |
|---|---|---|---|---|---|---|---|---|
| pm25 | 3 Good |
5 Good |
6 Good |
5 Good |
4 Good |
5 Good |
4 Good |
4 Good |
| pm10 | 6 Good |
9 Good |
9 Good |
7 Good |
8 Good |
8 Good |
8 Good |
11 Good |
| o3 | 65 Good |
65 Good |
64 Good |
74 Moderate |
67 Good |
62 Good |
60 Good |
57 Good |
| no2 | 3 Good |
5 Good |
5 Good |
3 Good |
2 Good |
4 Good |
4 Good |
3 Good |
| so2 | 0 Good |
0 Good |
0 Good |
0 Good |
0 Good |
0 Good |
0 Good |
0 Good |
| co | 148 Good |
151 Good |
161 Good |
166 Good |
156 Good |
160 Good |
144 Good |
147 Good |
| 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 | 14 (Good) | 21 (Moderate) | 19 (Good) | 16 (Good) | 17 (Good) | 17 (Good) | 14 (Good) | 13 (Good) | 16 (Good) | 14 (Good) | 12 (Good) | 11 (Good) | 12 (Good) | 19 (Good) | 18 (Good) | 28 (Moderate) | 18 (Good) | 17 (Good) | 15 (Good) | 13 (Good) | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) | 23 (Moderate) | 20 (Good) | 17 (Good) |
| pm25 | 8.1 (Good) | 14 (Moderate) | 12 (Good) | 7.2 (Good) | 11 (Good) | 11 (Good) | 9 (Good) | 6.3 (Good) | 5.8 (Good) | 6.5 (Good) | 5.5 (Good) | 5.3 (Good) | 7.1 (Good) | 14 (Moderate) | 12 (Good) | 22 (Moderate) | 13 (Good) | 12 (Good) | 14 (Moderate) | 11 (Good) | 11 (Good) | 7.5 (Good) | 8.8 (Good) | 9 (Good) | 13 (Good) | 12 (Good) | 9.7 (Good) | 11 (Good) | 7.7 (Good) | 13 (Good) | 13 (Moderate) | 9.8 (Good) | 9.1 (Good) |
| no2 | 7.6 (Good) | 10 (Good) | 16 (Good) | 20 (Good) | 27 (Good) | 25 (Good) | 25 (Good) | 17 (Good) | 15 (Good) | 14 (Good) | 17 (Good) | 17 (Good) | 19 (Good) | 20 (Good) | 23 (Good) | 31 (Good) | 31 (Good) | 23 (Good) | 27 (Good) | 27 (Good) | 23 (Good) | 16 (Good) | 18 (Good) | 19 (Good) | 19 (Good) | 22 (Good) | 26 (Good) | 31 (Good) | 26 (Good) | 35 (Good) | 31 (Good) | 24 (Good) | 25 (Good) |
| o3 | 64 (Good) | 74 (Moderate) | 65 (Good) | 61 (Good) | 43 (Good) | 41 (Good) | 35 (Good) | 41 (Good) | 50 (Good) | 58 (Good) | 67 (Good) | 69 (Good) | 67 (Good) | 63 (Good) | 60 (Good) | 31 (Good) | 36 (Good) | 38 (Good) | 31 (Good) | 42 (Good) | 56 (Good) | 55 (Good) | 70 (Good) | 60 (Good) | 75 (Moderate) | 63 (Good) | 51 (Good) | 39 (Good) | 48 (Good) | 33 (Good) | 29 (Good) | 33 (Good) | 35 (Good) |
Green and Parks in the City
Rennes 59%
Andorra: 69% Switzerland: 76% Luxembourg: 83% Belgium: 64% Liechtenstein: 88%particulate matter PM2.5
Rennes 11 (Good)
Pleasure of spending time in the city
Rennes 70%
Andorra: 84% Switzerland: 84% Luxembourg: 85% Belgium: 64% Liechtenstein: 94%particulate matter PM10
Rennes 21 (Moderate)
Air Pollution
Rennes 40%
Andorra: 29% Switzerland: 20% Luxembourg: 19% Belgium: 45% Liechtenstein: 6.3%Garbage Disposal
Rennes 67%
Andorra: 89% Switzerland: 82% Luxembourg: 84% Belgium: 54% Liechtenstein: 100%Availability and quality of drinking water
Rennes 75%
Andorra: 100% Switzerland: 90% Luxembourg: 83% Belgium: 70% Liechtenstein: 100%Cleanliness and tidiness
Rennes 53%
Andorra: 75% Switzerland: 82% Luxembourg: 82% Belgium: 46% Liechtenstein: 94%Noise and Light pollution
Rennes 56%
Andorra: 29% Switzerland: 38% Luxembourg: 29% Belgium: 54% Liechtenstein: 19%Water Pollution
Rennes 43%
Andorra: 19% Switzerland: 19% Luxembourg: 19% Belgium: 42% Liechtenstein: 0%PM2,5 3.4 (Good)
particulate matter (PM2.5) dustPM10 5.1 (Good)
particulate matter (PM10) suspended dustO3 56 (Good)
ozone (O3)NO2 3 (Good)
nitrogen dioxide (NO2)SO2 0.2 (Good)
sulfur dioxide (SO2)CO 143 (Good)
carbon monoxide (CO)Rennes
| index | 2026-08-20 | 2026-08-21 | 2026-08-22 | 2026-08-23 | 2026-08-24 | 2026-08-25 | 2026-08-26 | 2026-08-27 |
|---|---|---|---|---|---|---|---|---|
| pm25 | 4.4 | 3.7 | 5.1 | 4.3 | 4.8 | 5.6 | 5.2 | 3.1 |
| pm10 | 11 | 7.7 | 8.4 | 7.9 | 7.5 | 8.8 | 9.2 | 6.3 |
| o3 | 57 | 60 | 62 | 67 | 74 | 64 | 65 | 65 |
| no2 | 3 | 3.8 | 3.9 | 2.3 | 3.2 | 5.3 | 4.7 | 3.4 |
| so2 | 0.19 | 0.2 | 0.24 | 0.29 | 0.43 | 0.32 | 0.3 | 0.24 |
| co | 147 | 144 | 160 | 156 | 166 | 161 | 151 | 148 |
FR19002
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| pm25 | 6.5 | 13 | 12 | 7 | 11 | 11 | 9.6 | 6 | 5.9 | 6.2 | 6.8 | 6.6 | 8.4 | 14 | 12 | 24 | - | - | - | - | 12 | 8.2 | 11 | 11 | 15 | 15 | 12 | 12 | 9.5 | 13 | 13 | 9.8 | 9.1 |
| pm10 | 13 | 21 | 20 | 18 | 19 | 19 | 16 | 16 | 17 | 15 | 18 | 15 | 14 | 19 | 20 | 31 | 19 | 17 | - | - | - | - | - | - | - | - | - | - | - | - | 23 | 20 | 17 |
| no2 | 7.3 | 9.3 | 15 | 19 | 25 | 22 | 24 | 20 | 16 | 12 | 14 | 15 | 16 | 15 | 19 | 35 | 34 | 22 | 23 | 24 | 22 | 14 | 17 | 18 | 20 | 20 | 21 | 30 | 24 | 32 | 31 | 25 | 31 |
FR19007
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| no2 | 8.8 | 13 | 20 | 26 | 34 | 33 | 32 | 17 | 21 | 21 | 28 | 27 | 29 | 29 | 32 | 25 | 33 | 25 | 33 | 38 | 32 | 23 | 26 | 30 | 28 | 31 | 38 | 42 | 37 | 46 | 42 | 32 | 30 |
FR19010
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| no2 | 6.6 | 7.9 | 13 | 15 | 22 | 19 | 20 | 14 | 9.7 | 7.8 | 8.1 | 9.5 | 11 | 16 | 16 | 33 | 26 | 21 | 24 | 20 | 15 | 11 | 11 | 10 | 11 | 16 | 19 | 22 | 17 | 26 | 21 | 15 | 13 |
| o3 | 64 | 74 | 65 | 61 | 43 | 41 | 35 | 41 | 50 | 58 | 67 | 69 | 67 | 63 | 60 | 31 | 36 | 38 | 31 | 42 | 56 | 55 | 70 | 60 | 75 | 63 | 51 | 39 | 48 | 33 | 29 | 33 | 35 |
FR19017
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| pm25 | 9.7 | 15 | 13 | 7.3 | 11 | 11 | 8.4 | 6.6 | 5.6 | 6.8 | 4.3 | 3.9 | 5.8 | 14 | 11 | 19 | 13 | 12 | 14 | 11 | 9.3 | 6.9 | 6.9 | 6.5 | 11 | 9.3 | 7.3 | 9.6 | 5.9 |
| pm10 | 15 | 21 | 18 | 14 | 15 | 15 | 12 | 11 | 15 | 13 | 7.3 | 6.1 | 8.8 | 19 | 16 | 26 | 17 | 17 | 15 | 13 | - | - | - | - | - | - | - | - | - |
16-day weather forecast for France: today around 32°C (rain), lows near 16°C. Daily temperature and conditions, updated every day. Strong wind (about 24 km/h) is actively clearing smog and dust away.
☀️ UV Index · 16-day Forecast — France
The UV index in France today is 6 (high) — unprotected fair skin can burn in about 35 minutes.
📍 Air quality in nearby cities
Live PM2.5 around Rennes — compare nearby locations.
- Nantes 4 µg/m³
- Angers 3 µg/m³
- BrestBelarus 10 µg/m³
- Paris 4 µg/m³
- Marseille 02 7 µg/m³
- Lyon 6 µg/m³
- Toulouse 11 µg/m³
- Nice 8 µg/m³