Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
26
PM2.5
53
*
PM10
84
O3
0.6
CO
7
SO2
13
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
18 Nov
54
Good
Wed
19 Nov
52
Good
Thu
20 Nov
53
Good
Fri
21 Nov
56
Good
Sat
22 Nov
57
Good
Sun
23 Nov
56
Good
Mon
24 Nov
33
Excellent
Air quality in the last 12 months (Kowloon)
|
2025/10
|
13
|
11
|
9
|
20
|
23
|
15
|
16
|
18
|
25
|
21
|
18
|
13
|
11
|
12
|
13
|
18
|
28
|
27
|
26
|
22
|
13
|
10
|
21
|
31
|
34
|
40
|
52
|
48
|
31
|
34
|
34
|
|
2025/09
|
9
|
10
|
12
|
11
|
10
|
15
|
14
|
18
|
19
|
13
|
10
|
11
|
9
|
9
|
10
|
17
|
17
|
15
|
15
|
14
|
9
|
21
|
19
|
20
|
21
|
20
|
18
|
22
|
14
|
16
|
|
|
2025/08
|
23
|
26
|
36
|
31
|
18
|
17
|
20
|
26
|
21
|
11
|
12
|
15
|
19
|
16
|
14
|
18
|
16
|
12
|
15
|
17
|
14
|
12
|
19
|
20
|
13
|
18
|
13
|
24
|
17
|
17
|
9
|
|
2025/07
|
12
|
13
|
18
|
19
|
22
|
15
|
31
|
13
|
19
|
17
|
17
|
21
|
30
|
23
|
21
|
23
|
24
|
24
|
29
|
14
|
17
|
21
|
15
|
27
|
32
|
38
|
25
|
28
|
23
|
31
|
23
|
|
2025/06
|
27
|
23
|
20
|
14
|
19
|
17
|
14
|
10
|
11
|
10
|
13
|
13
|
12
|
26
|
30
|
24
|
18
|
13
|
11
|
11
|
12
|
14
|
11
|
10
|
9
|
12
|
13
|
11
|
12
|
11
|
|
|
2025/05
|
34
|
37
|
44
|
23
|
25
|
19
|
17
|
46
|
26
|
30
|
28
|
24
|
32
|
24
|
17
|
12
|
11
|
12
|
13
|
12
|
17
|
16
|
18
|
20
|
37
|
26
|
31
|
28
|
19
|
12
|
23
|
|
2025/04
|
22
|
19
|
27
|
40
|
30
|
42
|
43
|
50
|
38
|
24
|
21
|
24
|
150
|
153
|
106
|
73
|
58
|
46
|
26
|
23
|
22
|
23
|
21
|
18
|
22
|
15
|
28
|
33
|
25
|
40
|
|
|
2025/03
|
32
|
32
|
16
|
22
|
21
|
10
|
18
|
30
|
28
|
36
|
35
|
22
|
28
|
26
|
15
|
11
|
40
|
37
|
37
|
41
|
43
|
39
|
37
|
37
|
36
|
27
|
25
|
28
|
12
|
9
|
10
|
|
2025/02
|
21
|
17
|
13
|
13
|
36
|
33
|
25
|
40
|
45
|
42
|
29
|
20
|
39
|
40
|
25
|
48
|
40
|
62
|
37
|
35
|
38
|
31
|
19
|
21
|
48
|
49
|
28
|
27
|
|||
|
2025/01
|
52
|
61
|
50
|
45
|
51
|
56
|
45
|
58
|
56
|
46
|
44
|
28
|
34
|
37
|
50
|
62
|
52
|
53
|
46
|
46
|
34
|
48
|
41
|
20
|
24
|
21
|
18
|
33
|
52
|
37
|
30
|
|
2024/12
|
35
|
40
|
36
|
28
|
49
|
58
|
55
|
35
|
28
|
28
|
43
|
35
|
37
|
54
|
47
|
43
|
47
|
47
|
52
|
58
|
47
|
52
|
61
|
58
|
56
|
42
|
62
|
59
|
63
|
56
|
61
|
|
2024/11
|
33
|
28
|
39
|
47
|
43
|
53
|
41
|
38
|
41
|
36
|
38
|
39
|
28
|
13
|
12
|
22
|
17
|
30
|
15
|
8
|
14
|
25
|
29
|
36
|
37
|
18
|
30
|
33
|
31
|
35
|
|
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
15
|
16
|
17
|
18
|
19
|
20
|
21
|
22
|
23
|
24
|
25
|
26
|
27
|
28
|
29
|
30
|
31
|
- Excellent
- Good
- Lightly
- Moderately
- Heavily
- Severely
Air quality source: CNEMC
*: primary pollution