Air Pollution in Ajuda: Real-time Air Quality Index and smog alert.
Pollution and air quality forecast for Ajuda. Today is Friday, May 2, 2025. The following air pollution values have been recorded for Ajuda:- nitrogen dioxide (NO2) - 2 (Good)
- ozone (O3) - 85 (Moderate)
What is the air quality in Ajuda today? Is the air polluted in Ajuda?. Is there smog?
Today (Wednesday, January 17, 2024) air quality is moderate in Ajuda.
Some pollutants in Ajuda may slightly affect very few hypersensitive individuals. Air pollutants in Ajuda may cause minor breathing discomfort to sensitive people.
How high is the level of NO2? (nitrogen dioxide (NO2))
2 (Good)
How is the O3 level today in Ajuda? (ozone (O3))
85 (Moderate)
Current data Wednesday, January 17, 2024, 7:00 AM
NO2 2 (Good)
O3 85 (Moderate)
Data on air pollution from recent days in Ajuda
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
12
Good
33
Good
35
Good
40
Good
47
Good
59
Good
65
Good
87
Moderate
no2
50
Moderate
31
Good
17
Good
19
Good
11
Good
8
Good
6
Good
2
Good
data source »
Air pollution in Ajuda 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
2017-10
2017-09
no2
14 (Good)
16 (Good)
20 (Good)
33 (Good)
31 (Good)
27 (Good)
20 (Good)
21 (Good)
19 (Good)
11 (Good)
9.6 (Good)
11 (Good)
15 (Good)
14 (Good)
22 (Good)
30 (Good)
31 (Good)
33 (Good)
22 (Good)
25 (Good)
27 (Good)
21 (Good)
9 (Good)
14 (Good)
18 (Good)
19 (Good)
14 (Good)
23 (Good)
26 (Good)
30 (Good)
25 (Good)
o3
59 (Good)
66 (Good)
62 (Good)
38 (Good)
38 (Good)
32 (Good)
42 (Good)
44 (Good)
57 (Good)
55 (Good)
59 (Good)
63 (Good)
69 (Good)
74 (Moderate)
60 (Good)
49 (Good)
38 (Good)
26 (Good)
39 (Good)
51 (Good)
60 (Good)
65 (Good)
59 (Good)
56 (Good)
47 (Good)
68 (Good)
71 (Moderate)
53 (Good)
43 (Good)
50 (Good)
50 (Good)
data source »
PT03087
Wednesday, January 17, 2024, 7:00 AM
NO2 1.6 (Good)
nitrogen dioxide (NO2)
O3 85 (Moderate)
ozone (O3)
PT03087
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
87
65
59
47
40
35
33
12
no2
2.3
5.9
7.5
11
19
17
31
50
PT03087
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
2017-10
2017-09
no2
14
16
20
33
31
27
20
21
19
11
9.6
11
15
14
22
30
31
33
22
25
27
21
9
14
18
19
14
23
26
30
25
o3
59
66
62
38
38
32
42
44
57
55
59
63
69
74
60
49
38
26
39
51
60
65
59
56
47
68
71
53
43
50
50
* Pollution data source:
https://openaq.org
(EEA Portugal)
The data is licensed under CC-By 4.0
NO2 2 (Good)
O3 85 (Moderate)
Data on air pollution from recent days in Ajuda
| 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 | 12 Good |
33 Good |
35 Good |
40 Good |
47 Good |
59 Good |
65 Good |
87 Moderate |
| no2 | 50 Moderate |
31 Good |
17 Good |
19 Good |
11 Good |
8 Good |
6 Good |
2 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 | 2017-10 | 2017-09 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| no2 | 14 (Good) | 16 (Good) | 20 (Good) | 33 (Good) | 31 (Good) | 27 (Good) | 20 (Good) | 21 (Good) | 19 (Good) | 11 (Good) | 9.6 (Good) | 11 (Good) | 15 (Good) | 14 (Good) | 22 (Good) | 30 (Good) | 31 (Good) | 33 (Good) | 22 (Good) | 25 (Good) | 27 (Good) | 21 (Good) | 9 (Good) | 14 (Good) | 18 (Good) | 19 (Good) | 14 (Good) | 23 (Good) | 26 (Good) | 30 (Good) | 25 (Good) |
| o3 | 59 (Good) | 66 (Good) | 62 (Good) | 38 (Good) | 38 (Good) | 32 (Good) | 42 (Good) | 44 (Good) | 57 (Good) | 55 (Good) | 59 (Good) | 63 (Good) | 69 (Good) | 74 (Moderate) | 60 (Good) | 49 (Good) | 38 (Good) | 26 (Good) | 39 (Good) | 51 (Good) | 60 (Good) | 65 (Good) | 59 (Good) | 56 (Good) | 47 (Good) | 68 (Good) | 71 (Moderate) | 53 (Good) | 43 (Good) | 50 (Good) | 50 (Good) |
NO2 1.6 (Good)
nitrogen dioxide (NO2)O3 85 (Moderate)
ozone (O3)PT03087
| 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 | 87 | 65 | 59 | 47 | 40 | 35 | 33 | 12 |
| no2 | 2.3 | 5.9 | 7.5 | 11 | 19 | 17 | 31 | 50 |
PT03087
| 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 | 2017-10 | 2017-09 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| no2 | 14 | 16 | 20 | 33 | 31 | 27 | 20 | 21 | 19 | 11 | 9.6 | 11 | 15 | 14 | 22 | 30 | 31 | 33 | 22 | 25 | 27 | 21 | 9 | 14 | 18 | 19 | 14 | 23 | 26 | 30 | 25 |
| o3 | 59 | 66 | 62 | 38 | 38 | 32 | 42 | 44 | 57 | 55 | 59 | 63 | 69 | 74 | 60 | 49 | 38 | 26 | 39 | 51 | 60 | 65 | 59 | 56 | 47 | 68 | 71 | 53 | 43 | 50 | 50 |