Air Pollution in City of Westminster: Real-time Air Quality Index and smog alert.
Pollution and air quality forecast for City of Westminster. Today is Sunday, May 19, 2024. The following air pollution values have been recorded for City of Westminster:- ozone (O3) - 60 (Good)
- particulate matter (PM2.5) dust - 7 (Good)
- nitrogen dioxide (NO2) - 20 (Good)
- particulate matter (PM10) suspended dust - 23 (Moderate)
- sulfur dioxide (SO2) - 1 (Good)
- carbon monoxide (CO) - 200 (Good)
What is the air quality in City of Westminster today? Is the air polluted in City of Westminster?. Is there smog?
Today (Tuesday, April 16, 2024) air quality is moderate in City of Westminster.
Some pollutants in City of Westminster may slightly affect very few hypersensitive individuals. Air pollutants in City of Westminster may cause minor breathing discomfort to sensitive people.
How is the O3 level today in City of Westminster? (ozone (O3))
60 (Good)
What is the current level of PM2.5 in City of Westminster? (particulate matter (PM2.5) dust)
Today's PM2.5 level is:
7 (Good)
For comparison, the highest level of PM2.5 in City of Westminster in the last 7 days was: 14 (Monday, February 5, 2024) and the lowest: 3 (Thursday, April 11, 2024).
The highest PM2.5 values were recorded: 27 (December 2016).
The lowest level of particulate matter PM2.5 pollution occurs in month: February (8.2).
How high is the level of NO2? (nitrogen dioxide (NO2))
20 (Good)
What is the level of PM10 today in City of Westminster? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in City of Westminster is:
23 (Moderate)
The highest PM10 values usually occur in month: 40 (December 2016).
The lowest value of particulate matter PM10 pollution in City of Westminster is usually recorded in: September (15).
What is the level of SO2 pollution? (sulfur dioxide (SO2))
1 (Good)
How high is the CO level? (carbon monoxide (CO))
200 (Good)
Current data Tuesday, April 16, 2024, 1:00 AM
O3 60 (Good)
PM2,5 7 (Good)
NO2 20 (Good)
PM10 23 (Moderate)
SO2 1 (Good)
CO 200 (Good)
Data on air pollution from recent days in City of Westminster
index
2024-01-31
2024-02-01
2024-02-02
2024-02-03
2024-02-04
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
41
Moderate
48
Moderate
44
Moderate
40
Moderate
29
Good
34
Good
30
Good
12
Good
8
Good
8
Good
9
Good
8
Good
9
Good
10
Good
7
Good
pm25
9
Good
-
Good
10
Good
7
Good
7
Good
14
Moderate
13
Moderate
13
Moderate
5
Good
3
Good
4
Good
4
Good
3
Good
3
Good
3
Good
co
88
Good
243
Good
235
Good
222
Good
186
Good
195
Good
157
Good
86
Good
-
Good
-
Good
-
Good
-
Good
-
Good
-
Good
-
Good
pm10
15
Good
-
Good
21
Moderate
14
Good
10
Good
30
Moderate
26
Moderate
25
Moderate
-
Good
-
Good
-
Good
-
Good
-
Good
-
Good
-
Good
o3
28
Good
34
Good
25
Good
31
Good
34
Good
35
Good
36
Good
55
Good
62
Good
51
Good
60
Good
-
Good
-
Good
-
Good
-
Good
so2
0
Good
0
Good
0
Good
1
Good
1
Good
1
Good
1
Good
1
Good
-
Good
-
Good
-
Good
-
Good
-
Good
-
Good
-
Good
data source »
Air pollution in City of Westminster from August 2015 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
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
63 (Good)
54 (Good)
37 (Good)
23 (Good)
15 (Good)
13 (Good)
11 (Good)
15 (Good)
19 (Good)
22 (Good)
26 (Good)
23 (Good)
31 (Good)
36 (Good)
25 (Good)
15 (Good)
20 (Good)
11 (Good)
10 (Good)
17 (Good)
16 (Good)
14 (Good)
30 (Good)
32 (Good)
35 (Good)
24 (Good)
22 (Good)
24 (Good)
17 (Good)
16 (Good)
14 (Good)
16 (Good)
21 (Good)
22 (Good)
23 (Good)
26 (Good)
28 (Good)
30 (Good)
19 (Good)
15 (Good)
14 (Good)
4.8 (Good)
11 (Good)
16 (Good)
11 (Good)
17 (Good)
7.7 (Good)
19 (Good)
36 (Good)
24 (Good)
21 (Good)
16 (Good)
13 (Good)
16 (Good)
13 (Good)
12 (Good)
15 (Good)
18 (Good)
no2
38 (Good)
27 (Good)
37 (Good)
42 (Moderate)
47 (Moderate)
49 (Moderate)
53 (Moderate)
47 (Moderate)
40 (Moderate)
39 (Good)
39 (Good)
46 (Moderate)
42 (Moderate)
50 (Moderate)
51 (Moderate)
66 (Moderate)
56 (Moderate)
59 (Moderate)
60 (Moderate)
63 (Moderate)
61 (Moderate)
49 (Moderate)
62 (Moderate)
50 (Moderate)
67 (Moderate)
69 (Moderate)
66 (Moderate)
61 (Moderate)
61 (Moderate)
61 (Moderate)
65 (Moderate)
61 (Moderate)
57 (Moderate)
58 (Moderate)
57 (Moderate)
55 (Moderate)
55 (Moderate)
58 (Moderate)
65 (Moderate)
64 (Moderate)
75 (Moderate)
72 (Moderate)
65 (Moderate)
53 (Moderate)
51 (Moderate)
51 (Moderate)
41 (Moderate)
47 (Moderate)
49 (Moderate)
59 (Moderate)
62 (Moderate)
66 (Moderate)
60 (Moderate)
55 (Moderate)
58 (Moderate)
63 (Moderate)
53 (Moderate)
52 (Moderate)
pm25
11 (Good)
15 (Moderate)
9.6 (Good)
8.2 (Good)
12 (Good)
12 (Good)
13 (Moderate)
10 (Good)
8.5 (Good)
14 (Moderate)
8.8 (Good)
10 (Good)
13 (Good)
24 (Moderate)
14 (Moderate)
23 (Moderate)
15 (Moderate)
14 (Moderate)
17 (Moderate)
13 (Good)
10 (Good)
9.5 (Good)
13 (Good)
12 (Good)
16 (Moderate)
16 (Moderate)
17 (Moderate)
13 (Moderate)
13 (Good)
13 (Moderate)
16 (Moderate)
14 (Moderate)
14 (Moderate)
14 (Moderate)
12 (Good)
14 (Moderate)
15 (Moderate)
15 (Moderate)
16 (Moderate)
22 (Moderate)
25 (Moderate)
27 (Moderate)
15 (Moderate)
14 (Moderate)
15 (Moderate)
13 (Moderate)
13 (Good)
14 (Moderate)
16 (Moderate)
14 (Moderate)
19 (Moderate)
14 (Moderate)
13 (Moderate)
16 (Moderate)
18 (Moderate)
21 (Moderate)
13 (Good)
15 (Moderate)
pm10
16 (Good)
22 (Moderate)
17 (Good)
17 (Good)
19 (Good)
19 (Good)
20 (Good)
18 (Good)
17 (Good)
22 (Moderate)
19 (Good)
21 (Moderate)
20 (Good)
32 (Moderate)
24 (Moderate)
34 (Moderate)
23 (Moderate)
23 (Moderate)
27 (Moderate)
22 (Moderate)
20 (Moderate)
19 (Good)
23 (Moderate)
21 (Moderate)
27 (Moderate)
28 (Moderate)
27 (Moderate)
23 (Moderate)
22 (Moderate)
22 (Moderate)
27 (Moderate)
23 (Moderate)
20 (Good)
20 (Moderate)
19 (Good)
22 (Moderate)
23 (Moderate)
23 (Moderate)
26 (Moderate)
32 (Moderate)
33 (Moderate)
40 (Moderate)
25 (Moderate)
23 (Moderate)
25 (Moderate)
23 (Moderate)
20 (Good)
21 (Moderate)
26 (Moderate)
23 (Moderate)
28 (Moderate)
27 (Moderate)
23 (Moderate)
30 (Moderate)
29 (Moderate)
31 (Moderate)
15 (Good)
20 (Good)
so2
1.2 (Good)
2.6 (Good)
4.6 (Good)
5.1 (Good)
5.1 (Good)
5.1 (Good)
6.6 (Good)
5.7 (Good)
8.5 (Good)
5.2 (Good)
3.2 (Good)
5.3 (Good)
3.9 (Good)
3.9 (Good)
5.1 (Good)
7.2 (Good)
5.1 (Good)
7.1 (Good)
6.8 (Good)
6.4 (Good)
8.6 (Good)
6.7 (Good)
6.3 (Good)
4.3 (Good)
4.9 (Good)
6.4 (Good)
7 (Good)
7.1 (Good)
11 (Good)
9.2 (Good)
9.4 (Good)
8.7 (Good)
7.5 (Good)
6.9 (Good)
6.8 (Good)
7.6 (Good)
6 (Good)
5.5 (Good)
7.3 (Good)
8.5 (Good)
12 (Good)
11 (Good)
9.6 (Good)
7.7 (Good)
8.2 (Good)
8 (Good)
8.8 (Good)
8.6 (Good)
6.9 (Good)
8.3 (Good)
6.6 (Good)
- (Good)
- (Good)
- (Good)
- (Good)
- (Good)
- (Good)
- (Good)
data source »
London Marylebone Road
Wednesday, February 7, 2024, 7:00 AM
O3 60 (Good)
ozone (O3)
PM2,5 11 (Good)
particulate matter (PM2.5) dust
NO2 32 (Good)
nitrogen dioxide (NO2)
PM10 23 (Moderate)
particulate matter (PM10) suspended dust
SO2 1 (Good)
sulfur dioxide (SO2)
CO 200 (Good)
carbon monoxide (CO)
London Westminster
Tuesday, April 16, 2024, 1:00 AM
PM2,5 3 (Good)
particulate matter (PM2.5) dust
NO2 7 (Good)
nitrogen dioxide (NO2)
O3 59 (Good)
ozone (O3)
London Marylebone Road
index
2024-02-07
2024-02-06
2024-02-05
2024-02-04
2024-02-03
2024-02-02
2024-02-01
2024-01-31
no2
12
30
34
29
40
44
48
41
pm25
13
13
14
6.7
7.2
9.9
-
8.5
co
86
157
195
186
222
235
243
88
pm10
25
26
30
9.5
14
21
-
15
o3
55
36
35
34
31
25
34
28
so2
1
1.1
1.3
1.4
0.75
0.42
-0.35
0.3
London Westminster
index
2024-04-16
2024-04-15
2024-04-14
2024-04-13
2024-04-12
2024-04-11
2024-04-10
pm25
3
2.9
3.2
3.9
3.8
2.9
4.5
o3
-
-
-
-
60
51
62
no2
7
9.9
9.1
8.3
8.7
8.1
7.7
London Marylebone Road
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
pm25
9
14
8.5
7.1
12
12
13
9.6
7.2
11
8.7
11
16
26
17
27
16
16
19
15
14
13
16
14
18
18
17
13
13
13
16
14
14
14
12
14
15
15
16
22
25
27
15
14
15
13
13
14
16
14
19
14
13
16
18
21
13
15
no2
24
30
50
60
61
64
64
61
56
57
61
70
57
60
73
80
65
80
77
87
94
77
95
76
96
102
84
75
83
79
81
84
84
87
83
82
72
63
82
78
84
92
87
71
82
81
66
79
74
89
80
85
79
86
82
90
72
72
pm10
16
22
17
17
19
19
20
18
17
22
19
21
20
32
24
34
23
23
27
22
20
19
23
21
27
28
27
23
22
22
27
23
20
20
19
22
23
23
26
32
33
40
25
23
25
23
20
21
26
23
28
27
23
30
29
31
15
20
o3
63
54
37
23
15
13
11
15
19
22
26
23
31
36
25
15
20
11
10
17
16
14
30
32
35
24
22
24
17
16
14
16
21
22
23
26
28
30
19
15
14
4.8
11
16
11
17
7.7
19
36
24
21
16
13
16
13
12
15
18
so2
1.2
2.6
4.6
5.1
5.1
5.1
6.6
5.7
8.5
5.2
3.2
5.3
3.9
3.9
5.1
7.2
5.1
7.1
6.8
6.4
8.6
6.7
6.3
4.3
4.9
6.4
7
7.1
11
9.2
9.4
8.7
7.5
6.9
6.8
7.6
6
5.5
7.3
8.5
12
11
9.6
7.7
8.2
8
8.8
8.6
6.9
8.3
6.6
-
-
-
-
-
-
-
London Westminster
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
no2
52
24
25
24
32
34
42
32
25
21
18
21
28
40
29
52
48
38
44
40
29
21
28
25
37
36
49
46
38
42
49
37
30
28
32
28
38
54
48
49
66
51
43
36
21
21
15
16
24
28
44
46
41
25
35
36
34
32
pm25
13
17
11
9.4
12
12
14
11
9.7
17
8.9
8.9
10
22
11
19
14
11
16
10
7.4
6.4
9.9
9.3
15
14
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
* Pollution data source:
https://openaq.org
(DEFRA)
The data is licensed under CC-By 4.0
O3 60 (Good)
PM2,5 7 (Good)
NO2 20 (Good)
PM10 23 (Moderate)
SO2 1 (Good)
CO 200 (Good)
Data on air pollution from recent days in City of Westminster
| index | 2024-01-31 | 2024-02-01 | 2024-02-02 | 2024-02-03 | 2024-02-04 | 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 | 41 Moderate |
48 Moderate |
44 Moderate |
40 Moderate |
29 Good |
34 Good |
30 Good |
12 Good |
8 Good |
8 Good |
9 Good |
8 Good |
9 Good |
10 Good |
7 Good |
| pm25 | 9 Good |
- Good |
10 Good |
7 Good |
7 Good |
14 Moderate |
13 Moderate |
13 Moderate |
5 Good |
3 Good |
4 Good |
4 Good |
3 Good |
3 Good |
3 Good |
| co | 88 Good |
243 Good |
235 Good |
222 Good |
186 Good |
195 Good |
157 Good |
86 Good |
- Good |
- Good |
- Good |
- Good |
- Good |
- Good |
- Good |
| pm10 | 15 Good |
- Good |
21 Moderate |
14 Good |
10 Good |
30 Moderate |
26 Moderate |
25 Moderate |
- Good |
- Good |
- Good |
- Good |
- Good |
- Good |
- Good |
| o3 | 28 Good |
34 Good |
25 Good |
31 Good |
34 Good |
35 Good |
36 Good |
55 Good |
62 Good |
51 Good |
60 Good |
- Good |
- Good |
- Good |
- Good |
| so2 | 0 Good |
0 Good |
0 Good |
1 Good |
1 Good |
1 Good |
1 Good |
1 Good |
- Good |
- Good |
- Good |
- Good |
- Good |
- Good |
- 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| o3 | 63 (Good) | 54 (Good) | 37 (Good) | 23 (Good) | 15 (Good) | 13 (Good) | 11 (Good) | 15 (Good) | 19 (Good) | 22 (Good) | 26 (Good) | 23 (Good) | 31 (Good) | 36 (Good) | 25 (Good) | 15 (Good) | 20 (Good) | 11 (Good) | 10 (Good) | 17 (Good) | 16 (Good) | 14 (Good) | 30 (Good) | 32 (Good) | 35 (Good) | 24 (Good) | 22 (Good) | 24 (Good) | 17 (Good) | 16 (Good) | 14 (Good) | 16 (Good) | 21 (Good) | 22 (Good) | 23 (Good) | 26 (Good) | 28 (Good) | 30 (Good) | 19 (Good) | 15 (Good) | 14 (Good) | 4.8 (Good) | 11 (Good) | 16 (Good) | 11 (Good) | 17 (Good) | 7.7 (Good) | 19 (Good) | 36 (Good) | 24 (Good) | 21 (Good) | 16 (Good) | 13 (Good) | 16 (Good) | 13 (Good) | 12 (Good) | 15 (Good) | 18 (Good) |
| no2 | 38 (Good) | 27 (Good) | 37 (Good) | 42 (Moderate) | 47 (Moderate) | 49 (Moderate) | 53 (Moderate) | 47 (Moderate) | 40 (Moderate) | 39 (Good) | 39 (Good) | 46 (Moderate) | 42 (Moderate) | 50 (Moderate) | 51 (Moderate) | 66 (Moderate) | 56 (Moderate) | 59 (Moderate) | 60 (Moderate) | 63 (Moderate) | 61 (Moderate) | 49 (Moderate) | 62 (Moderate) | 50 (Moderate) | 67 (Moderate) | 69 (Moderate) | 66 (Moderate) | 61 (Moderate) | 61 (Moderate) | 61 (Moderate) | 65 (Moderate) | 61 (Moderate) | 57 (Moderate) | 58 (Moderate) | 57 (Moderate) | 55 (Moderate) | 55 (Moderate) | 58 (Moderate) | 65 (Moderate) | 64 (Moderate) | 75 (Moderate) | 72 (Moderate) | 65 (Moderate) | 53 (Moderate) | 51 (Moderate) | 51 (Moderate) | 41 (Moderate) | 47 (Moderate) | 49 (Moderate) | 59 (Moderate) | 62 (Moderate) | 66 (Moderate) | 60 (Moderate) | 55 (Moderate) | 58 (Moderate) | 63 (Moderate) | 53 (Moderate) | 52 (Moderate) |
| pm25 | 11 (Good) | 15 (Moderate) | 9.6 (Good) | 8.2 (Good) | 12 (Good) | 12 (Good) | 13 (Moderate) | 10 (Good) | 8.5 (Good) | 14 (Moderate) | 8.8 (Good) | 10 (Good) | 13 (Good) | 24 (Moderate) | 14 (Moderate) | 23 (Moderate) | 15 (Moderate) | 14 (Moderate) | 17 (Moderate) | 13 (Good) | 10 (Good) | 9.5 (Good) | 13 (Good) | 12 (Good) | 16 (Moderate) | 16 (Moderate) | 17 (Moderate) | 13 (Moderate) | 13 (Good) | 13 (Moderate) | 16 (Moderate) | 14 (Moderate) | 14 (Moderate) | 14 (Moderate) | 12 (Good) | 14 (Moderate) | 15 (Moderate) | 15 (Moderate) | 16 (Moderate) | 22 (Moderate) | 25 (Moderate) | 27 (Moderate) | 15 (Moderate) | 14 (Moderate) | 15 (Moderate) | 13 (Moderate) | 13 (Good) | 14 (Moderate) | 16 (Moderate) | 14 (Moderate) | 19 (Moderate) | 14 (Moderate) | 13 (Moderate) | 16 (Moderate) | 18 (Moderate) | 21 (Moderate) | 13 (Good) | 15 (Moderate) |
| pm10 | 16 (Good) | 22 (Moderate) | 17 (Good) | 17 (Good) | 19 (Good) | 19 (Good) | 20 (Good) | 18 (Good) | 17 (Good) | 22 (Moderate) | 19 (Good) | 21 (Moderate) | 20 (Good) | 32 (Moderate) | 24 (Moderate) | 34 (Moderate) | 23 (Moderate) | 23 (Moderate) | 27 (Moderate) | 22 (Moderate) | 20 (Moderate) | 19 (Good) | 23 (Moderate) | 21 (Moderate) | 27 (Moderate) | 28 (Moderate) | 27 (Moderate) | 23 (Moderate) | 22 (Moderate) | 22 (Moderate) | 27 (Moderate) | 23 (Moderate) | 20 (Good) | 20 (Moderate) | 19 (Good) | 22 (Moderate) | 23 (Moderate) | 23 (Moderate) | 26 (Moderate) | 32 (Moderate) | 33 (Moderate) | 40 (Moderate) | 25 (Moderate) | 23 (Moderate) | 25 (Moderate) | 23 (Moderate) | 20 (Good) | 21 (Moderate) | 26 (Moderate) | 23 (Moderate) | 28 (Moderate) | 27 (Moderate) | 23 (Moderate) | 30 (Moderate) | 29 (Moderate) | 31 (Moderate) | 15 (Good) | 20 (Good) |
| so2 | 1.2 (Good) | 2.6 (Good) | 4.6 (Good) | 5.1 (Good) | 5.1 (Good) | 5.1 (Good) | 6.6 (Good) | 5.7 (Good) | 8.5 (Good) | 5.2 (Good) | 3.2 (Good) | 5.3 (Good) | 3.9 (Good) | 3.9 (Good) | 5.1 (Good) | 7.2 (Good) | 5.1 (Good) | 7.1 (Good) | 6.8 (Good) | 6.4 (Good) | 8.6 (Good) | 6.7 (Good) | 6.3 (Good) | 4.3 (Good) | 4.9 (Good) | 6.4 (Good) | 7 (Good) | 7.1 (Good) | 11 (Good) | 9.2 (Good) | 9.4 (Good) | 8.7 (Good) | 7.5 (Good) | 6.9 (Good) | 6.8 (Good) | 7.6 (Good) | 6 (Good) | 5.5 (Good) | 7.3 (Good) | 8.5 (Good) | 12 (Good) | 11 (Good) | 9.6 (Good) | 7.7 (Good) | 8.2 (Good) | 8 (Good) | 8.8 (Good) | 8.6 (Good) | 6.9 (Good) | 8.3 (Good) | 6.6 (Good) | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) |
O3 60 (Good)
ozone (O3)PM2,5 11 (Good)
particulate matter (PM2.5) dustNO2 32 (Good)
nitrogen dioxide (NO2)PM10 23 (Moderate)
particulate matter (PM10) suspended dustSO2 1 (Good)
sulfur dioxide (SO2)CO 200 (Good)
carbon monoxide (CO)PM2,5 3 (Good)
particulate matter (PM2.5) dustNO2 7 (Good)
nitrogen dioxide (NO2)O3 59 (Good)
ozone (O3)London Marylebone Road
| index | 2024-02-07 | 2024-02-06 | 2024-02-05 | 2024-02-04 | 2024-02-03 | 2024-02-02 | 2024-02-01 | 2024-01-31 |
|---|---|---|---|---|---|---|---|---|
| no2 | 12 | 30 | 34 | 29 | 40 | 44 | 48 | 41 |
| pm25 | 13 | 13 | 14 | 6.7 | 7.2 | 9.9 | - | 8.5 |
| co | 86 | 157 | 195 | 186 | 222 | 235 | 243 | 88 |
| pm10 | 25 | 26 | 30 | 9.5 | 14 | 21 | - | 15 |
| o3 | 55 | 36 | 35 | 34 | 31 | 25 | 34 | 28 |
| so2 | 1 | 1.1 | 1.3 | 1.4 | 0.75 | 0.42 | -0.35 | 0.3 |
London Westminster
| index | 2024-04-16 | 2024-04-15 | 2024-04-14 | 2024-04-13 | 2024-04-12 | 2024-04-11 | 2024-04-10 |
|---|---|---|---|---|---|---|---|
| pm25 | 3 | 2.9 | 3.2 | 3.9 | 3.8 | 2.9 | 4.5 |
| o3 | - | - | - | - | 60 | 51 | 62 |
| no2 | 7 | 9.9 | 9.1 | 8.3 | 8.7 | 8.1 | 7.7 |
London Marylebone Road
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| pm25 | 9 | 14 | 8.5 | 7.1 | 12 | 12 | 13 | 9.6 | 7.2 | 11 | 8.7 | 11 | 16 | 26 | 17 | 27 | 16 | 16 | 19 | 15 | 14 | 13 | 16 | 14 | 18 | 18 | 17 | 13 | 13 | 13 | 16 | 14 | 14 | 14 | 12 | 14 | 15 | 15 | 16 | 22 | 25 | 27 | 15 | 14 | 15 | 13 | 13 | 14 | 16 | 14 | 19 | 14 | 13 | 16 | 18 | 21 | 13 | 15 |
| no2 | 24 | 30 | 50 | 60 | 61 | 64 | 64 | 61 | 56 | 57 | 61 | 70 | 57 | 60 | 73 | 80 | 65 | 80 | 77 | 87 | 94 | 77 | 95 | 76 | 96 | 102 | 84 | 75 | 83 | 79 | 81 | 84 | 84 | 87 | 83 | 82 | 72 | 63 | 82 | 78 | 84 | 92 | 87 | 71 | 82 | 81 | 66 | 79 | 74 | 89 | 80 | 85 | 79 | 86 | 82 | 90 | 72 | 72 |
| pm10 | 16 | 22 | 17 | 17 | 19 | 19 | 20 | 18 | 17 | 22 | 19 | 21 | 20 | 32 | 24 | 34 | 23 | 23 | 27 | 22 | 20 | 19 | 23 | 21 | 27 | 28 | 27 | 23 | 22 | 22 | 27 | 23 | 20 | 20 | 19 | 22 | 23 | 23 | 26 | 32 | 33 | 40 | 25 | 23 | 25 | 23 | 20 | 21 | 26 | 23 | 28 | 27 | 23 | 30 | 29 | 31 | 15 | 20 |
| o3 | 63 | 54 | 37 | 23 | 15 | 13 | 11 | 15 | 19 | 22 | 26 | 23 | 31 | 36 | 25 | 15 | 20 | 11 | 10 | 17 | 16 | 14 | 30 | 32 | 35 | 24 | 22 | 24 | 17 | 16 | 14 | 16 | 21 | 22 | 23 | 26 | 28 | 30 | 19 | 15 | 14 | 4.8 | 11 | 16 | 11 | 17 | 7.7 | 19 | 36 | 24 | 21 | 16 | 13 | 16 | 13 | 12 | 15 | 18 |
| so2 | 1.2 | 2.6 | 4.6 | 5.1 | 5.1 | 5.1 | 6.6 | 5.7 | 8.5 | 5.2 | 3.2 | 5.3 | 3.9 | 3.9 | 5.1 | 7.2 | 5.1 | 7.1 | 6.8 | 6.4 | 8.6 | 6.7 | 6.3 | 4.3 | 4.9 | 6.4 | 7 | 7.1 | 11 | 9.2 | 9.4 | 8.7 | 7.5 | 6.9 | 6.8 | 7.6 | 6 | 5.5 | 7.3 | 8.5 | 12 | 11 | 9.6 | 7.7 | 8.2 | 8 | 8.8 | 8.6 | 6.9 | 8.3 | 6.6 | - | - | - | - | - | - | - |
London Westminster
| 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 | 52 | 24 | 25 | 24 | 32 | 34 | 42 | 32 | 25 | 21 | 18 | 21 | 28 | 40 | 29 | 52 | 48 | 38 | 44 | 40 | 29 | 21 | 28 | 25 | 37 | 36 | 49 | 46 | 38 | 42 | 49 | 37 | 30 | 28 | 32 | 28 | 38 | 54 | 48 | 49 | 66 | 51 | 43 | 36 | 21 | 21 | 15 | 16 | 24 | 28 | 44 | 46 | 41 | 25 | 35 | 36 | 34 | 32 |
| pm25 | 13 | 17 | 11 | 9.4 | 12 | 12 | 14 | 11 | 9.7 | 17 | 8.9 | 8.9 | 10 | 22 | 11 | 19 | 14 | 11 | 16 | 10 | 7.4 | 6.4 | 9.9 | 9.3 | 15 | 14 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |