Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
34
PM2.5
52
*
PM10
89
O3
0.7
CO
9
SO2
34
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
7 Dec
86
Good
Mon
8 Dec
83
Good
Tue
9 Dec
85
Good
Wed
10 Dec
67
Good
Thu
11 Dec
69
Good
Fri
12 Dec
64
Good
Sat
13 Dec
45
Excellent
Kowloon Air quality rank
Air quality in the last 12 months (Kowloon)
|
2025/11
|
30
|
38
|
40
|
27
|
17
|
23
|
25
|
28
|
29
|
20
|
21
|
25
|
16
|
24
|
40
|
38
|
36
|
43
|
24
|
31
|
33
|
39
|
57
|
52
|
45
|
57
|
48
|
55
|
56
|
50
|
|
|
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
|
|
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