Inquinamento atmosferico in Hillingdon: indice di qualità dell'aria in tempo reale e allarme smog.
Previsioni di inquinamento e qualità dell'aria per Hillingdon. Oggi è venerdì 2 maggio 2025. Per Hillingdon sono stati registrati i seguenti valori di inquinamento atmosferico:- ozono (O3) - 75 (Moderata)
- polvere di particolato (PM2.5) - 5 (Buono)
- polveri sospese di particolato (PM10) - 12 (Buono)
- biossido di azoto (NO2) - 10 (Buono)
Qual è la qualità dell'aria Hillingdon oggi? L'aria è inquinata Hillingdon? C'è smog?
Oggi (martedì 16 aprile 2024) la qualità dell'aria è moderata in Hillingdon.
Alcuni inquinanti in Hillingdon possono colpire leggermente pochissimi individui ipersensibili. Gli inquinanti atmosferici in Hillingdon possono causare lievi disturbi respiratori alle persone sensibili.
Come è il livello O3 oggi in Hillingdon? (ozono (O3))
75 (Moderata)
Qual è il livello attuale di PM2.5 in Hillingdon? (polvere di particolato (PM2.5))
Il livello PM2.5 di oggi è:
5 (Buono)
Per fare un confronto, il livello più alto di PM2,5 in Hillingdon negli ultimi 7 giorni è stato: 9 (lunedì 5 febbraio 2024) e il più basso: 2 (sabato 3 febbraio 2024).
Sono stati registrati i valori PM2,5 più alti: 21 (aprile 2019).
Il più basso livello di inquinamento da particolato PM2.5 si verifica nel mese: agosto (4.9).
Qual è il livello di PM10 oggi in Hillingdon? (polveri sospese di particolato (PM10))
L'attuale livello di particolato PM10 in Hillingdon è:
12 (Buono)
I valori PM10 più alti si verificano in genere nel mese: 29 (aprile 2019).
Il valore più basso dell'inquinamento da particolato PM10 in Hillingdon è di solito registrato in: dicembre (9.6).
Quanto è alto il livello di NO2? (biossido di azoto (NO2))
10 (Buono)
Dati correnti martedì 16 aprile 2024, 01:00
O3 75 (Moderata)
PM2,5 5 (Buono)
PM10 12 (Buono)
NO2 10 (Buono)
Dati sull'inquinamento atmosferico degli ultimi giorni Hillingdon
index
2024-01-31
2024-02-02
2024-02-03
2024-02-05
2024-02-06
2024-02-07
2024-04-10
2024-04-11
2024-04-12
2024-04-13
2024-04-14
2024-04-15
2024-04-16
no2
22
Good
13
Good
8
Good
19
Good
12
Good
8
Good
23
Good
24
Good
27
Good
20
Good
14
Good
8
Good
3
Good
pm25
4
Good
4
Good
2
Good
9
Good
7
Good
7
Good
5
Good
4
Good
5
Good
5
Good
4
Good
3
Good
3
Good
o3
46
Good
63
Good
65
Good
53
Good
60
Good
64
Good
51
Good
39
Good
39
Good
43
Good
63
Good
76
Moderate
83
Moderate
pm10
8
Good
7
Good
4
Good
20
Moderate
16
Good
15
Good
15
Good
8
Good
11
Good
11
Good
8
Good
8
Good
8
Good
data source »
Inquinamento atmosferico in Hillingdon da agosto 2015 a maggio 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
2017-08
2017-07
2017-06
2017-05
2017-04
2017-03
2017-02
2017-01
2016-12
2016-11
2016-10
2016-09
2016-08
2016-07
2016-06
2016-05
2016-04
2016-03
2016-02
2016-01
2015-12
2015-11
2015-10
2015-09
2015-08
no2
18 (Good)
22 (Good)
26 (Good)
29 (Good)
41 (Moderate)
44 (Moderate)
42 (Moderate)
36 (Good)
31 (Good)
35 (Good)
28 (Good)
32 (Good)
31 (Good)
40 (Moderate)
45 (Moderate)
56 (Moderate)
47 (Moderate)
44 (Moderate)
45 (Moderate)
32 (Good)
34 (Good)
28 (Good)
33 (Good)
24 (Good)
34 (Good)
38 (Good)
40 (Good)
36 (Good)
40 (Good)
39 (Good)
41 (Moderate)
36 (Good)
37 (Good)
35 (Good)
29 (Good)
35 (Good)
39 (Good)
44 (Moderate)
52 (Moderate)
51 (Moderate)
67 (Moderate)
65 (Moderate)
53 (Moderate)
38 (Good)
41 (Moderate)
31 (Good)
32 (Good)
34 (Good)
35 (Good)
39 (Good)
40 (Good)
33 (Good)
41 (Moderate)
43 (Moderate)
43 (Moderate)
51 (Moderate)
34 (Good)
33 (Good)
pm25
8.6 (Good)
14 (Moderate)
8.7 (Good)
6.5 (Good)
9.4 (Good)
8.4 (Good)
9.6 (Good)
7.5 (Good)
5.3 (Good)
6.9 (Good)
6 (Good)
6.6 (Good)
8.2 (Good)
21 (Moderate)
8.9 (Good)
15 (Moderate)
11 (Good)
7.5 (Good)
13 (Good)
7.8 (Good)
5.2 (Good)
4.9 (Good)
8.6 (Good)
8.5 (Good)
14 (Moderate)
12 (Good)
13 (Good)
9.9 (Good)
8.7 (Good)
6.7 (Good)
9.8 (Good)
7.8 (Good)
7.9 (Good)
7.3 (Good)
6 (Good)
7.9 (Good)
9.8 (Good)
11 (Good)
10 (Good)
13 (Moderate)
20 (Moderate)
20 (Moderate)
8.5 (Good)
9.6 (Good)
11 (Good)
- (Good)
15 (Moderate)
14 (Moderate)
16 (Moderate)
13 (Moderate)
19 (Moderate)
13 (Moderate)
9.5 (Good)
13 (Good)
14 (Moderate)
17 (Moderate)
12 (Good)
17 (Moderate)
pm10
14 (Good)
23 (Moderate)
14 (Good)
11 (Good)
14 (Good)
12 (Good)
14 (Good)
12 (Good)
12 (Good)
13 (Good)
13 (Good)
11 (Good)
14 (Good)
29 (Moderate)
14 (Good)
22 (Moderate)
16 (Good)
11 (Good)
18 (Good)
13 (Good)
11 (Good)
11 (Good)
18 (Good)
16 (Good)
21 (Moderate)
17 (Good)
18 (Good)
15 (Good)
13 (Good)
9.6 (Good)
15 (Good)
13 (Good)
12 (Good)
13 (Good)
12 (Good)
15 (Good)
16 (Good)
19 (Good)
15 (Good)
17 (Good)
25 (Moderate)
25 (Moderate)
13 (Good)
14 (Good)
16 (Good)
- (Good)
17 (Good)
17 (Good)
21 (Moderate)
16 (Good)
23 (Moderate)
15 (Good)
11 (Good)
17 (Good)
16 (Good)
19 (Good)
14 (Good)
- (Good)
o3
64 (Good)
57 (Good)
52 (Good)
47 (Good)
30 (Good)
26 (Good)
18 (Good)
25 (Good)
30 (Good)
37 (Good)
39 (Good)
40 (Good)
44 (Good)
49 (Good)
47 (Good)
22 (Good)
28 (Good)
25 (Good)
18 (Good)
27 (Good)
30 (Good)
30 (Good)
50 (Good)
48 (Good)
53 (Good)
43 (Good)
38 (Good)
34 (Good)
32 (Good)
29 (Good)
23 (Good)
20 (Good)
17 (Good)
22 (Good)
42 (Good)
45 (Good)
37 (Good)
43 (Good)
40 (Good)
29 (Good)
16 (Good)
12 (Good)
22 (Good)
17 (Good)
21 (Good)
36 (Good)
30 (Good)
34 (Good)
47 (Good)
42 (Good)
39 (Good)
36 (Good)
32 (Good)
31 (Good)
26 (Good)
17 (Good)
28 (Good)
28 (Good)
data source »
London Harlington
mercoledì 7 febbraio 2024, 08:00
O3 67 (Buono)
ozono (O3)
PM2,5 7 (Buono)
polvere di particolato (PM2.5)
PM10 15 (Buono)
polveri sospese di particolato (PM10)
NO2 18 (Buono)
biossido di azoto (NO2)
London Hillingdon
martedì 16 aprile 2024, 01:00
PM2,5 3 (Buono)
polvere di particolato (PM2.5)
O3 82 (Moderata)
ozono (O3)
PM10 8 (Buono)
polveri sospese di particolato (PM10)
NO2 2 (Buono)
biossido di azoto (NO2)
London Harlington
index
2024-02-07
2024-02-06
2024-02-05
2024-02-03
2024-02-02
2024-01-31
no2
8.3
12
19
7.6
13
22
pm25
7.2
7.3
8.5
2
4.2
4
o3
64
60
53
65
63
46
pm10
15
16
20
4.5
7.2
7.5
London Hillingdon
index
2024-04-16
2024-04-15
2024-04-14
2024-04-13
2024-04-12
2024-04-11
2024-04-10
pm10
8
7.8
7.9
11
11
8.2
15
o3
83
76
63
43
39
39
51
pm25
3
3.3
4.4
5
5.3
3.6
5
no2
2.5
8.2
14
20
27
24
23
London Harlington
2015-08 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
2017-08
2017-07
2017-06
2017-05
2017-04
2017-03
2017-02
2017-01
2016-12
2016-11
2016-10
2016-09
2016-08
2016-07
2016-06
2016-05
2016-04
2016-03
2016-02
2016-01
2015-12
2015-11
2015-10
2015-09
2015-08
o3
67
58
55
51
35
29
21
29
34
45
44
47
46
52
52
25
30
29
22
30
38
34
53
49
55
51
46
39
40
33
27
23
22
24
48
54
-
44
48
37
21
16
26
21
31
41
36
40
53
49
42
41
37
38
31
22
31
31
no2
11
19
22
23
32
38
35
28
24
24
20
23
26
35
29
53
45
37
33
27
25
17
22
17
27
23
22
24
22
25
27
20
20
17
21
23
30
36
36
38
60
58
45
31
24
19
20
25
22
22
28
9.2
25
24
27
31
22
17
pm25
8.6
14
8.7
6.5
9.4
8.4
9.6
7.5
5.3
6.9
6
6.6
8.2
21
8.9
15
11
7.5
13
7.8
5.2
4.9
8.6
8.5
14
12
13
9.9
8.7
6.7
9.8
7.8
7.9
7.3
6
7.9
9.8
11
10
13
20
20
8.5
9.6
11
-
15
14
16
13
19
13
9.5
13
14
17
12
17
pm10
14
23
14
11
14
12
14
12
12
13
13
11
14
29
14
22
16
11
18
13
11
11
18
16
21
17
18
15
13
9.6
15
13
12
13
12
15
16
19
15
17
25
25
13
14
16
-
17
17
21
16
23
15
11
17
16
19
14
-
London Hillingdon
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
2017-08
2017-07
2017-06
2017-05
2017-04
2017-03
2017-02
2017-01
2016-12
2016-11
2016-10
2016-09
2016-08
2016-07
2016-06
2016-05
2016-04
2016-03
2016-02
2016-01
2015-12
2015-11
2015-10
2015-09
2015-08
o3
61
56
48
43
25
23
15
21
26
29
34
33
42
45
43
18
26
22
14
25
23
26
48
47
51
35
30
30
24
24
18
17
13
20
35
36
37
41
31
22
12
7.7
18
14
12
30
25
28
42
35
35
31
26
24
20
12
24
24
no2
24
26
29
34
50
49
49
44
38
47
35
41
36
46
61
60
49
51
58
37
42
40
45
31
41
53
57
49
57
52
55
52
54
52
38
46
48
52
68
64
75
72
60
45
57
44
44
44
48
57
52
57
58
62
59
71
46
50
* Pollution data source:
https://openaq.org
(DEFRA)
The data is licensed under CC-By 4.0
O3 75 (Moderata)
PM2,5 5 (Buono)
PM10 12 (Buono)
NO2 10 (Buono)
Dati sull'inquinamento atmosferico degli ultimi giorni Hillingdon
| index | 2024-01-31 | 2024-02-02 | 2024-02-03 | 2024-02-05 | 2024-02-06 | 2024-02-07 | 2024-04-10 | 2024-04-11 | 2024-04-12 | 2024-04-13 | 2024-04-14 | 2024-04-15 | 2024-04-16 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| no2 | 22 Good |
13 Good |
8 Good |
19 Good |
12 Good |
8 Good |
23 Good |
24 Good |
27 Good |
20 Good |
14 Good |
8 Good |
3 Good |
| pm25 | 4 Good |
4 Good |
2 Good |
9 Good |
7 Good |
7 Good |
5 Good |
4 Good |
5 Good |
5 Good |
4 Good |
3 Good |
3 Good |
| o3 | 46 Good |
63 Good |
65 Good |
53 Good |
60 Good |
64 Good |
51 Good |
39 Good |
39 Good |
43 Good |
63 Good |
76 Moderate |
83 Moderate |
| pm10 | 8 Good |
7 Good |
4 Good |
20 Moderate |
16 Good |
15 Good |
15 Good |
8 Good |
11 Good |
11 Good |
8 Good |
8 Good |
8 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 | 2017-08 | 2017-07 | 2017-06 | 2017-05 | 2017-04 | 2017-03 | 2017-02 | 2017-01 | 2016-12 | 2016-11 | 2016-10 | 2016-09 | 2016-08 | 2016-07 | 2016-06 | 2016-05 | 2016-04 | 2016-03 | 2016-02 | 2016-01 | 2015-12 | 2015-11 | 2015-10 | 2015-09 | 2015-08 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| no2 | 18 (Good) | 22 (Good) | 26 (Good) | 29 (Good) | 41 (Moderate) | 44 (Moderate) | 42 (Moderate) | 36 (Good) | 31 (Good) | 35 (Good) | 28 (Good) | 32 (Good) | 31 (Good) | 40 (Moderate) | 45 (Moderate) | 56 (Moderate) | 47 (Moderate) | 44 (Moderate) | 45 (Moderate) | 32 (Good) | 34 (Good) | 28 (Good) | 33 (Good) | 24 (Good) | 34 (Good) | 38 (Good) | 40 (Good) | 36 (Good) | 40 (Good) | 39 (Good) | 41 (Moderate) | 36 (Good) | 37 (Good) | 35 (Good) | 29 (Good) | 35 (Good) | 39 (Good) | 44 (Moderate) | 52 (Moderate) | 51 (Moderate) | 67 (Moderate) | 65 (Moderate) | 53 (Moderate) | 38 (Good) | 41 (Moderate) | 31 (Good) | 32 (Good) | 34 (Good) | 35 (Good) | 39 (Good) | 40 (Good) | 33 (Good) | 41 (Moderate) | 43 (Moderate) | 43 (Moderate) | 51 (Moderate) | 34 (Good) | 33 (Good) |
| pm25 | 8.6 (Good) | 14 (Moderate) | 8.7 (Good) | 6.5 (Good) | 9.4 (Good) | 8.4 (Good) | 9.6 (Good) | 7.5 (Good) | 5.3 (Good) | 6.9 (Good) | 6 (Good) | 6.6 (Good) | 8.2 (Good) | 21 (Moderate) | 8.9 (Good) | 15 (Moderate) | 11 (Good) | 7.5 (Good) | 13 (Good) | 7.8 (Good) | 5.2 (Good) | 4.9 (Good) | 8.6 (Good) | 8.5 (Good) | 14 (Moderate) | 12 (Good) | 13 (Good) | 9.9 (Good) | 8.7 (Good) | 6.7 (Good) | 9.8 (Good) | 7.8 (Good) | 7.9 (Good) | 7.3 (Good) | 6 (Good) | 7.9 (Good) | 9.8 (Good) | 11 (Good) | 10 (Good) | 13 (Moderate) | 20 (Moderate) | 20 (Moderate) | 8.5 (Good) | 9.6 (Good) | 11 (Good) | - (Good) | 15 (Moderate) | 14 (Moderate) | 16 (Moderate) | 13 (Moderate) | 19 (Moderate) | 13 (Moderate) | 9.5 (Good) | 13 (Good) | 14 (Moderate) | 17 (Moderate) | 12 (Good) | 17 (Moderate) |
| pm10 | 14 (Good) | 23 (Moderate) | 14 (Good) | 11 (Good) | 14 (Good) | 12 (Good) | 14 (Good) | 12 (Good) | 12 (Good) | 13 (Good) | 13 (Good) | 11 (Good) | 14 (Good) | 29 (Moderate) | 14 (Good) | 22 (Moderate) | 16 (Good) | 11 (Good) | 18 (Good) | 13 (Good) | 11 (Good) | 11 (Good) | 18 (Good) | 16 (Good) | 21 (Moderate) | 17 (Good) | 18 (Good) | 15 (Good) | 13 (Good) | 9.6 (Good) | 15 (Good) | 13 (Good) | 12 (Good) | 13 (Good) | 12 (Good) | 15 (Good) | 16 (Good) | 19 (Good) | 15 (Good) | 17 (Good) | 25 (Moderate) | 25 (Moderate) | 13 (Good) | 14 (Good) | 16 (Good) | - (Good) | 17 (Good) | 17 (Good) | 21 (Moderate) | 16 (Good) | 23 (Moderate) | 15 (Good) | 11 (Good) | 17 (Good) | 16 (Good) | 19 (Good) | 14 (Good) | - (Good) |
| o3 | 64 (Good) | 57 (Good) | 52 (Good) | 47 (Good) | 30 (Good) | 26 (Good) | 18 (Good) | 25 (Good) | 30 (Good) | 37 (Good) | 39 (Good) | 40 (Good) | 44 (Good) | 49 (Good) | 47 (Good) | 22 (Good) | 28 (Good) | 25 (Good) | 18 (Good) | 27 (Good) | 30 (Good) | 30 (Good) | 50 (Good) | 48 (Good) | 53 (Good) | 43 (Good) | 38 (Good) | 34 (Good) | 32 (Good) | 29 (Good) | 23 (Good) | 20 (Good) | 17 (Good) | 22 (Good) | 42 (Good) | 45 (Good) | 37 (Good) | 43 (Good) | 40 (Good) | 29 (Good) | 16 (Good) | 12 (Good) | 22 (Good) | 17 (Good) | 21 (Good) | 36 (Good) | 30 (Good) | 34 (Good) | 47 (Good) | 42 (Good) | 39 (Good) | 36 (Good) | 32 (Good) | 31 (Good) | 26 (Good) | 17 (Good) | 28 (Good) | 28 (Good) |
O3 67 (Buono)
ozono (O3)PM2,5 7 (Buono)
polvere di particolato (PM2.5)PM10 15 (Buono)
polveri sospese di particolato (PM10)NO2 18 (Buono)
biossido di azoto (NO2)PM2,5 3 (Buono)
polvere di particolato (PM2.5)O3 82 (Moderata)
ozono (O3)PM10 8 (Buono)
polveri sospese di particolato (PM10)NO2 2 (Buono)
biossido di azoto (NO2)London Harlington
| index | 2024-02-07 | 2024-02-06 | 2024-02-05 | 2024-02-03 | 2024-02-02 | 2024-01-31 |
|---|---|---|---|---|---|---|
| no2 | 8.3 | 12 | 19 | 7.6 | 13 | 22 |
| pm25 | 7.2 | 7.3 | 8.5 | 2 | 4.2 | 4 |
| o3 | 64 | 60 | 53 | 65 | 63 | 46 |
| pm10 | 15 | 16 | 20 | 4.5 | 7.2 | 7.5 |
London Hillingdon
| index | 2024-04-16 | 2024-04-15 | 2024-04-14 | 2024-04-13 | 2024-04-12 | 2024-04-11 | 2024-04-10 |
|---|---|---|---|---|---|---|---|
| pm10 | 8 | 7.8 | 7.9 | 11 | 11 | 8.2 | 15 |
| o3 | 83 | 76 | 63 | 43 | 39 | 39 | 51 |
| pm25 | 3 | 3.3 | 4.4 | 5 | 5.3 | 3.6 | 5 |
| no2 | 2.5 | 8.2 | 14 | 20 | 27 | 24 | 23 |
London Harlington
| 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 | 2017-08 | 2017-07 | 2017-06 | 2017-05 | 2017-04 | 2017-03 | 2017-02 | 2017-01 | 2016-12 | 2016-11 | 2016-10 | 2016-09 | 2016-08 | 2016-07 | 2016-06 | 2016-05 | 2016-04 | 2016-03 | 2016-02 | 2016-01 | 2015-12 | 2015-11 | 2015-10 | 2015-09 | 2015-08 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| o3 | 67 | 58 | 55 | 51 | 35 | 29 | 21 | 29 | 34 | 45 | 44 | 47 | 46 | 52 | 52 | 25 | 30 | 29 | 22 | 30 | 38 | 34 | 53 | 49 | 55 | 51 | 46 | 39 | 40 | 33 | 27 | 23 | 22 | 24 | 48 | 54 | - | 44 | 48 | 37 | 21 | 16 | 26 | 21 | 31 | 41 | 36 | 40 | 53 | 49 | 42 | 41 | 37 | 38 | 31 | 22 | 31 | 31 |
| no2 | 11 | 19 | 22 | 23 | 32 | 38 | 35 | 28 | 24 | 24 | 20 | 23 | 26 | 35 | 29 | 53 | 45 | 37 | 33 | 27 | 25 | 17 | 22 | 17 | 27 | 23 | 22 | 24 | 22 | 25 | 27 | 20 | 20 | 17 | 21 | 23 | 30 | 36 | 36 | 38 | 60 | 58 | 45 | 31 | 24 | 19 | 20 | 25 | 22 | 22 | 28 | 9.2 | 25 | 24 | 27 | 31 | 22 | 17 |
| pm25 | 8.6 | 14 | 8.7 | 6.5 | 9.4 | 8.4 | 9.6 | 7.5 | 5.3 | 6.9 | 6 | 6.6 | 8.2 | 21 | 8.9 | 15 | 11 | 7.5 | 13 | 7.8 | 5.2 | 4.9 | 8.6 | 8.5 | 14 | 12 | 13 | 9.9 | 8.7 | 6.7 | 9.8 | 7.8 | 7.9 | 7.3 | 6 | 7.9 | 9.8 | 11 | 10 | 13 | 20 | 20 | 8.5 | 9.6 | 11 | - | 15 | 14 | 16 | 13 | 19 | 13 | 9.5 | 13 | 14 | 17 | 12 | 17 |
| pm10 | 14 | 23 | 14 | 11 | 14 | 12 | 14 | 12 | 12 | 13 | 13 | 11 | 14 | 29 | 14 | 22 | 16 | 11 | 18 | 13 | 11 | 11 | 18 | 16 | 21 | 17 | 18 | 15 | 13 | 9.6 | 15 | 13 | 12 | 13 | 12 | 15 | 16 | 19 | 15 | 17 | 25 | 25 | 13 | 14 | 16 | - | 17 | 17 | 21 | 16 | 23 | 15 | 11 | 17 | 16 | 19 | 14 | - |
London Hillingdon
| 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 | 2017-08 | 2017-07 | 2017-06 | 2017-05 | 2017-04 | 2017-03 | 2017-02 | 2017-01 | 2016-12 | 2016-11 | 2016-10 | 2016-09 | 2016-08 | 2016-07 | 2016-06 | 2016-05 | 2016-04 | 2016-03 | 2016-02 | 2016-01 | 2015-12 | 2015-11 | 2015-10 | 2015-09 | 2015-08 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| o3 | 61 | 56 | 48 | 43 | 25 | 23 | 15 | 21 | 26 | 29 | 34 | 33 | 42 | 45 | 43 | 18 | 26 | 22 | 14 | 25 | 23 | 26 | 48 | 47 | 51 | 35 | 30 | 30 | 24 | 24 | 18 | 17 | 13 | 20 | 35 | 36 | 37 | 41 | 31 | 22 | 12 | 7.7 | 18 | 14 | 12 | 30 | 25 | 28 | 42 | 35 | 35 | 31 | 26 | 24 | 20 | 12 | 24 | 24 |
| no2 | 24 | 26 | 29 | 34 | 50 | 49 | 49 | 44 | 38 | 47 | 35 | 41 | 36 | 46 | 61 | 60 | 49 | 51 | 58 | 37 | 42 | 40 | 45 | 31 | 41 | 53 | 57 | 49 | 57 | 52 | 55 | 52 | 54 | 52 | 38 | 46 | 48 | 52 | 68 | 64 | 75 | 72 | 60 | 45 | 57 | 44 | 44 | 44 | 48 | 57 | 52 | 57 | 58 | 62 | 59 | 71 | 46 | 50 |