Air Quality
Excellent
No health implications.
26
PM2.5
44
PM10
92
O3
0.5
CO
8
SO2
17
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
22 Dec
68
Good
Mon
23 Dec
55
Good
Tue
24 Dec
55
Good
Wed
25 Dec
59
Good
Thu
26 Dec
60
Good
Fri
27 Dec
49
Excellent
Sat
28 Dec
29
Excellent
Air quality in the last 12 months (Kowloon)
|
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
|
|
2024/06
|
16
|
23
|
22
|
25
|
21
|
22
|
12
|
12
|
12
|
14
|
19
|
23
|
22
|
24
|
17
|
21
|
18
|
19
|
17
|
13
|
18
|
24
|
10
|
12
|
15
|
14
|
13
|
13
|
11
|
18
|
|
|
2024/05
|
22
|
25
|
29
|
21
|
14
|
19
|
35
|
32
|
34
|
29
|
29
|
34
|
31
|
23
|
28
|
37
|
35
|
27
|
29
|
15
|
15
|
22
|
11
|
11
|
16
|
17
|
20
|
18
|
28
|
17
|
16
|
|
2024/04
|
51
|
49
|
23
|
20
|
42
|
27
|
25
|
35
|
18
|
30
|
37
|
34
|
33
|
21
|
29
|
28
|
24
|
19
|
24
|
23
|
15
|
23
|
20
|
33
|
17
|
20
|
29
|
16
|
20
|
25
|
|
|
2024/03
|
18
|
21
|
32
|
36
|
35
|
45
|
36
|
34
|
50
|
30
|
25
|
16
|
58
|
59
|
60
|
60
|
49
|
34
|
21
|
50
|
49
|
53
|
42
|
25
|
25
|
51
|
27
|
36
|
47
|
35
|
27
|
|
2024/02
|
26
|
24
|
23
|
23
|
26
|
23
|
18
|
14
|
17
|
61
|
50
|
34
|
46
|
39
|
34
|
36
|
28
|
34
|
26
|
19
|
21
|
21
|
37
|
35
|
28
|
44
|
37
|
42
|
48
|
||
|
2024/01
|
59
|
53
|
46
|
38
|
39
|
57
|
48
|
52
|
48
|
36
|
41
|
53
|
44
|
30
|
34
|
41
|
35
|
26
|
23
|
36
|
35
|
35
|
27
|
37
|
42
|
50
|
53
|
34
|
44
|
51
|
31
|
|
2023/12
|
49
|
50
|
49
|
57
|
48
|
42
|
27
|
36
|
42
|
34
|
19
|
39
|
32
|
28
|
23
|
20
|
34
|
47
|
37
|
28
|
30
|
53
|
48
|
43
|
42
|
48
|
49
|
55
|
35
|
50
|
63
|
|
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