Air Pollution in Alvalade: Real-time Air Quality Index and smog alert.
Pollution and air quality forecast for Alvalade. Today is Sunday, May 18, 2025. The following air pollution values have been recorded for Alvalade:- sulfur dioxide (SO2) - 2 (Good)
- nitrogen dioxide (NO2) - 8 (Good)
- ozone (O3) - 79 (Moderate)
- carbon monoxide (CO) - 162 (Good)
- particulate matter (PM10) suspended dust - 27 (Moderate)
- particulate matter (PM2.5) dust - 6 (Good)
What is the air quality in Alvalade today? Is the air polluted in Alvalade?. Is there smog?
What is the level of SO2 pollution? (sulfur dioxide (SO2))
2 (Good)
How high is the level of NO2? (nitrogen dioxide (NO2))
8 (Good)
How is the O3 level today in Alvalade? (ozone (O3))
79 (Moderate)
How high is the CO level? (carbon monoxide (CO))
162 (Good)
What is the level of PM10 today in Alvalade? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Alvalade is:
27 (Moderate)
The highest PM10 values usually occur in month: 41 (October 2017).
The lowest value of particulate matter PM10 pollution in Alvalade is usually recorded in: April (0.8).
What is the current level of PM2.5 in Alvalade? (particulate matter (PM2.5) dust)
Today's PM2.5 level is:
6 (Good)
For comparison, the highest level of PM2.5 in Alvalade in the last 7 days was: 14 (Wednesday, January 10, 2024) and the lowest: 7 (Saturday, January 13, 2024).
The highest PM2.5 values were recorded: 25 (October 2017).
The lowest level of particulate matter PM2.5 pollution occurs in month: April (0.45).
Current data Wednesday, January 17, 2024, 7:00 AM
SO2 2 (Good)
NO2 8 (Good)
O3 79 (Moderate)
CO 162 (Good)
PM10 27 (Moderate)
PM2,5 6 (Good)
Data on air pollution from recent days in Alvalade
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
pm10
29
Moderate
26
Moderate
16
Good
24
Moderate
62
Unhealthy for Sensitive Groups
41
Moderate
44
Moderate
31
Moderate
co
772
Good
469
Good
349
Good
410
Good
315
Good
224
Good
224
Good
165
Good
o3
5
Good
13
Good
23
Good
28
Good
29
Good
51
Good
51
Good
86
Moderate
no2
56
Moderate
44
Moderate
23
Good
31
Good
26
Good
22
Good
22
Good
5
Good
so2
8
Good
7
Good
6
Good
7
Good
7
Good
12
Good
2
Good
2
Good
pm25
14
Moderate
11
Good
8
Good
7
Good
10
Good
7
Good
8
Good
7
Good
data source »
Air pollution in Alvalade 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
15 (Good)
17 (Good)
23 (Good)
52 (Moderate)
51 (Moderate)
42 (Moderate)
43 (Moderate)
40 (Moderate)
35 (Good)
18 (Good)
22 (Good)
25 (Good)
24 (Good)
35 (Good)
38 (Good)
53 (Moderate)
51 (Moderate)
45 (Moderate)
51 (Moderate)
48 (Moderate)
47 (Moderate)
37 (Good)
25 (Good)
32 (Good)
28 (Good)
42 (Moderate)
43 (Moderate)
47 (Moderate)
42 (Moderate)
62 (Moderate)
34 (Good)
so2
0.29 (Good)
0.5 (Good)
0.45 (Good)
0.65 (Good)
1.1 (Good)
0.7 (Good)
0.44 (Good)
0.35 (Good)
0.55 (Good)
0.55 (Good)
0.93 (Good)
1.1 (Good)
0.95 (Good)
0.66 (Good)
1.4 (Good)
1.2 (Good)
1.2 (Good)
1.9 (Good)
1 (Good)
1 (Good)
0.82 (Good)
0.9 (Good)
0.72 (Good)
0.44 (Good)
1 (Good)
0.77 (Good)
2.5 (Good)
2.1 (Good)
1.4 (Good)
1.1 (Good)
5.4 (Good)
o3
62 (Good)
71 (Moderate)
66 (Good)
27 (Good)
28 (Good)
28 (Good)
15 (Good)
44 (Good)
37 (Good)
44 (Good)
41 (Good)
45 (Good)
50 (Good)
50 (Good)
46 (Good)
31 (Good)
25 (Good)
18 (Good)
27 (Good)
38 (Good)
54 (Good)
58 (Good)
53 (Good)
65 (Good)
76 (Moderate)
57 (Good)
54 (Good)
41 (Good)
36 (Good)
34 (Good)
42 (Good)
co
218 (Good)
238 (Good)
257 (Good)
419 (Good)
473 (Good)
323 (Good)
307 (Good)
296 (Good)
267 (Good)
198 (Good)
201 (Good)
203 (Good)
231 (Good)
256 (Good)
276 (Good)
424 (Good)
559 (Good)
463 (Good)
387 (Good)
243 (Good)
219 (Good)
191 (Good)
151 (Good)
172 (Good)
231 (Good)
270 (Good)
291 (Good)
855 (Good)
391 (Good)
491 (Good)
476 (Good)
pm25
- (Good)
7.6 (Good)
7.3 (Good)
15 (Moderate)
13 (Moderate)
- (Good)
1.3 (Good)
0.49 (Good)
2.1 (Good)
- (Good)
0.67 (Good)
1.1 (Good)
0.8 (Good)
0.45 (Good)
1.1 (Good)
2.2 (Good)
6 (Good)
5.5 (Good)
3.2 (Good)
3 (Good)
3.2 (Good)
1.4 (Good)
1.5 (Good)
2.2 (Good)
6.7 (Good)
6.7 (Good)
10 (Good)
12 (Good)
16 (Moderate)
25 (Moderate)
19 (Moderate)
pm10
- (Good)
12 (Good)
16 (Good)
28 (Moderate)
26 (Moderate)
8.4 (Good)
3.4 (Good)
1.1 (Good)
4 (Good)
- (Good)
0.86 (Good)
1.8 (Good)
2.1 (Good)
0.8 (Good)
2.2 (Good)
4 (Good)
8.1 (Good)
8.4 (Good)
6.1 (Good)
5.9 (Good)
6.1 (Good)
2.7 (Good)
3 (Good)
3.6 (Good)
10 (Good)
12 (Good)
19 (Good)
20 (Moderate)
23 (Moderate)
41 (Moderate)
29 (Moderate)
data source »
PT03072
Wednesday, January 17, 2024, 7:00 AM
SO2 1.9 (Good)
sulfur dioxide (SO2)
NO2 8.4 (Good)
nitrogen dioxide (NO2)
O3 79 (Moderate)
ozone (O3)
CO 162 (Good)
carbon monoxide (CO)
PM10 27 (Moderate)
particulate matter (PM10) suspended dust
PM2,5 5.8 (Good)
particulate matter (PM2.5) dust
PT03072
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
pm10
31
44
41
62
24
16
26
29
co
165
224
224
315
410
349
469
772
o3
86
51
51
29
28
23
13
5.4
no2
4.6
22
22
26
31
23
44
56
so2
1.9
2.1
12
6.5
6.8
6.3
6.7
7.7
pm25
7
7.7
6.8
10
7.3
7.7
11
14
PT03072
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
2017-10
2017-09
pm25
-
7.6
7.3
15
13
-
1.3
0.49
2.1
-
0.67
1.1
0.8
0.45
1.1
2.2
6
5.5
3.2
3
3.2
1.4
1.5
2.2
6.7
6.7
10
12
16
25
19
pm10
-
12
16
28
26
8.4
3.4
1.1
4
-
0.86
1.8
2.1
0.8
2.2
4
8.1
8.4
6.1
5.9
6.1
2.7
3
3.6
10
12
19
20
23
41
29
co
218
238
257
419
473
323
307
296
267
198
201
203
231
256
276
424
559
463
387
243
219
191
151
172
231
270
291
855
391
491
476
so2
0.29
0.5
0.45
0.65
1.1
0.7
0.44
0.35
0.55
0.55
0.93
1.1
0.95
0.66
1.4
1.2
1.2
1.9
1
1
0.82
0.9
0.72
0.44
1
0.77
2.5
2.1
1.4
1.1
5.4
no2
15
17
23
52
51
42
43
40
35
18
22
25
24
35
38
53
51
45
51
48
47
37
25
32
28
42
43
47
42
62
34
o3
62
71
66
27
28
28
15
44
37
44
41
45
50
50
46
31
25
18
27
38
54
58
53
65
76
57
54
41
36
34
42
* Pollution data source:
https://openaq.org
(EEA Portugal)
The data is licensed under CC-By 4.0
SO2 2 (Good)
NO2 8 (Good)
O3 79 (Moderate)
CO 162 (Good)
PM10 27 (Moderate)
PM2,5 6 (Good)
Data on air pollution from recent days in Alvalade
| 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 |
|---|---|---|---|---|---|---|---|---|
| pm10 | 29 Moderate |
26 Moderate |
16 Good |
24 Moderate |
62 Unhealthy for Sensitive Groups |
41 Moderate |
44 Moderate |
31 Moderate |
| co | 772 Good |
469 Good |
349 Good |
410 Good |
315 Good |
224 Good |
224 Good |
165 Good |
| o3 | 5 Good |
13 Good |
23 Good |
28 Good |
29 Good |
51 Good |
51 Good |
86 Moderate |
| no2 | 56 Moderate |
44 Moderate |
23 Good |
31 Good |
26 Good |
22 Good |
22 Good |
5 Good |
| so2 | 8 Good |
7 Good |
6 Good |
7 Good |
7 Good |
12 Good |
2 Good |
2 Good |
| pm25 | 14 Moderate |
11 Good |
8 Good |
7 Good |
10 Good |
7 Good |
8 Good |
7 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 | 15 (Good) | 17 (Good) | 23 (Good) | 52 (Moderate) | 51 (Moderate) | 42 (Moderate) | 43 (Moderate) | 40 (Moderate) | 35 (Good) | 18 (Good) | 22 (Good) | 25 (Good) | 24 (Good) | 35 (Good) | 38 (Good) | 53 (Moderate) | 51 (Moderate) | 45 (Moderate) | 51 (Moderate) | 48 (Moderate) | 47 (Moderate) | 37 (Good) | 25 (Good) | 32 (Good) | 28 (Good) | 42 (Moderate) | 43 (Moderate) | 47 (Moderate) | 42 (Moderate) | 62 (Moderate) | 34 (Good) |
| so2 | 0.29 (Good) | 0.5 (Good) | 0.45 (Good) | 0.65 (Good) | 1.1 (Good) | 0.7 (Good) | 0.44 (Good) | 0.35 (Good) | 0.55 (Good) | 0.55 (Good) | 0.93 (Good) | 1.1 (Good) | 0.95 (Good) | 0.66 (Good) | 1.4 (Good) | 1.2 (Good) | 1.2 (Good) | 1.9 (Good) | 1 (Good) | 1 (Good) | 0.82 (Good) | 0.9 (Good) | 0.72 (Good) | 0.44 (Good) | 1 (Good) | 0.77 (Good) | 2.5 (Good) | 2.1 (Good) | 1.4 (Good) | 1.1 (Good) | 5.4 (Good) |
| o3 | 62 (Good) | 71 (Moderate) | 66 (Good) | 27 (Good) | 28 (Good) | 28 (Good) | 15 (Good) | 44 (Good) | 37 (Good) | 44 (Good) | 41 (Good) | 45 (Good) | 50 (Good) | 50 (Good) | 46 (Good) | 31 (Good) | 25 (Good) | 18 (Good) | 27 (Good) | 38 (Good) | 54 (Good) | 58 (Good) | 53 (Good) | 65 (Good) | 76 (Moderate) | 57 (Good) | 54 (Good) | 41 (Good) | 36 (Good) | 34 (Good) | 42 (Good) |
| co | 218 (Good) | 238 (Good) | 257 (Good) | 419 (Good) | 473 (Good) | 323 (Good) | 307 (Good) | 296 (Good) | 267 (Good) | 198 (Good) | 201 (Good) | 203 (Good) | 231 (Good) | 256 (Good) | 276 (Good) | 424 (Good) | 559 (Good) | 463 (Good) | 387 (Good) | 243 (Good) | 219 (Good) | 191 (Good) | 151 (Good) | 172 (Good) | 231 (Good) | 270 (Good) | 291 (Good) | 855 (Good) | 391 (Good) | 491 (Good) | 476 (Good) |
| pm25 | - (Good) | 7.6 (Good) | 7.3 (Good) | 15 (Moderate) | 13 (Moderate) | - (Good) | 1.3 (Good) | 0.49 (Good) | 2.1 (Good) | - (Good) | 0.67 (Good) | 1.1 (Good) | 0.8 (Good) | 0.45 (Good) | 1.1 (Good) | 2.2 (Good) | 6 (Good) | 5.5 (Good) | 3.2 (Good) | 3 (Good) | 3.2 (Good) | 1.4 (Good) | 1.5 (Good) | 2.2 (Good) | 6.7 (Good) | 6.7 (Good) | 10 (Good) | 12 (Good) | 16 (Moderate) | 25 (Moderate) | 19 (Moderate) |
| pm10 | - (Good) | 12 (Good) | 16 (Good) | 28 (Moderate) | 26 (Moderate) | 8.4 (Good) | 3.4 (Good) | 1.1 (Good) | 4 (Good) | - (Good) | 0.86 (Good) | 1.8 (Good) | 2.1 (Good) | 0.8 (Good) | 2.2 (Good) | 4 (Good) | 8.1 (Good) | 8.4 (Good) | 6.1 (Good) | 5.9 (Good) | 6.1 (Good) | 2.7 (Good) | 3 (Good) | 3.6 (Good) | 10 (Good) | 12 (Good) | 19 (Good) | 20 (Moderate) | 23 (Moderate) | 41 (Moderate) | 29 (Moderate) |
SO2 1.9 (Good)
sulfur dioxide (SO2)NO2 8.4 (Good)
nitrogen dioxide (NO2)O3 79 (Moderate)
ozone (O3)CO 162 (Good)
carbon monoxide (CO)PM10 27 (Moderate)
particulate matter (PM10) suspended dustPM2,5 5.8 (Good)
particulate matter (PM2.5) dustPT03072
| 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 |
|---|---|---|---|---|---|---|---|---|
| pm10 | 31 | 44 | 41 | 62 | 24 | 16 | 26 | 29 |
| co | 165 | 224 | 224 | 315 | 410 | 349 | 469 | 772 |
| o3 | 86 | 51 | 51 | 29 | 28 | 23 | 13 | 5.4 |
| no2 | 4.6 | 22 | 22 | 26 | 31 | 23 | 44 | 56 |
| so2 | 1.9 | 2.1 | 12 | 6.5 | 6.8 | 6.3 | 6.7 | 7.7 |
| pm25 | 7 | 7.7 | 6.8 | 10 | 7.3 | 7.7 | 11 | 14 |
PT03072
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| pm25 | - | 7.6 | 7.3 | 15 | 13 | - | 1.3 | 0.49 | 2.1 | - | 0.67 | 1.1 | 0.8 | 0.45 | 1.1 | 2.2 | 6 | 5.5 | 3.2 | 3 | 3.2 | 1.4 | 1.5 | 2.2 | 6.7 | 6.7 | 10 | 12 | 16 | 25 | 19 |
| pm10 | - | 12 | 16 | 28 | 26 | 8.4 | 3.4 | 1.1 | 4 | - | 0.86 | 1.8 | 2.1 | 0.8 | 2.2 | 4 | 8.1 | 8.4 | 6.1 | 5.9 | 6.1 | 2.7 | 3 | 3.6 | 10 | 12 | 19 | 20 | 23 | 41 | 29 |
| co | 218 | 238 | 257 | 419 | 473 | 323 | 307 | 296 | 267 | 198 | 201 | 203 | 231 | 256 | 276 | 424 | 559 | 463 | 387 | 243 | 219 | 191 | 151 | 172 | 231 | 270 | 291 | 855 | 391 | 491 | 476 |
| so2 | 0.29 | 0.5 | 0.45 | 0.65 | 1.1 | 0.7 | 0.44 | 0.35 | 0.55 | 0.55 | 0.93 | 1.1 | 0.95 | 0.66 | 1.4 | 1.2 | 1.2 | 1.9 | 1 | 1 | 0.82 | 0.9 | 0.72 | 0.44 | 1 | 0.77 | 2.5 | 2.1 | 1.4 | 1.1 | 5.4 |
| no2 | 15 | 17 | 23 | 52 | 51 | 42 | 43 | 40 | 35 | 18 | 22 | 25 | 24 | 35 | 38 | 53 | 51 | 45 | 51 | 48 | 47 | 37 | 25 | 32 | 28 | 42 | 43 | 47 | 42 | 62 | 34 |
| o3 | 62 | 71 | 66 | 27 | 28 | 28 | 15 | 44 | 37 | 44 | 41 | 45 | 50 | 50 | 46 | 31 | 25 | 18 | 27 | 38 | 54 | 58 | 53 | 65 | 76 | 57 | 54 | 41 | 36 | 34 | 42 |