Air Quality
Excellent
No health implications.
6
PM2.5
13
PM10
28
O3
0.5
CO
7
SO2
16
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
11 Aug
56
Good
Tue
12 Aug
41
Excellent
Wed
13 Aug
63
Good
Thu
14 Aug
43
Excellent
Fri
15 Aug
48
Excellent
Sat
16 Aug
64
Good
Sun
17 Aug
24
Excellent
Air quality in the last 12 months (Kowloon)
|
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
|
|
|
2024/10
|
28
|
29
|
39
|
36
|
41
|
38
|
39
|
41
|
38
|
31
|
27
|
38
|
25
|
25
|
24
|
23
|
25
|
27
|
37
|
19
|
37
|
25
|
28
|
40
|
45
|
44
|
45
|
22
|
28
|
39
|
41
|
|
2024/09
|
13
|
17
|
34
|
27
|
22
|
13
|
22
|
15
|
12
|
22
|
27
|
20
|
20
|
20
|
31
|
15
|
20
|
21
|
30
|
22
|
15
|
15
|
12
|
11
|
23
|
27
|
26
|
33
|
23
|
35
|
|
|
2024/08
|
24
|
26
|
20
|
21
|
31
|
25
|
30
|
18
|
15
|
17
|
20
|
16
|
18
|
13
|
14
|
13
|
15
|
17
|
16
|
14
|
13
|
24
|
28
|
22
|
14
|
16
|
19
|
32
|
35
|
24
|
15
|
|
2024/07
|
22
|
23
|
12
|
11
|
12
|
11
|
11
|
16
|
11
|
10
|
11
|
9
|
11
|
12
|
12
|
12
|
12
|
13
|
15
|
16
|
15
|
12
|
12
|
19
|
27
|
24
|
18
|
10
|
11
|
8
|
13
|
|
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