Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
25
PM2.5
51
*
PM10
112
O3
0.4
CO
5
SO2
8
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
23 Feb
57
Good
Tue
24 Feb
50
Excellent
Wed
25 Feb
52
Good
Thu
26 Feb
49
Excellent
Fri
27 Feb
45
Excellent
Sat
28 Feb
39
Excellent
Sun
1 Mar
37
Excellent
Air quality in the last 12 months (New Territories)
|
2026/01
|
40
|
22
|
28
|
41
|
46
|
37
|
42
|
30
|
36
|
45
|
36
|
60
|
57
|
30
|
45
|
37
|
33
|
35
|
40
|
32
|
43
|
42
|
42
|
57
|
23
|
18
|
51
|
42
|
30
|
32
|
30
|
|
2025/12
|
35
|
27
|
45
|
65
|
50
|
42
|
47
|
46
|
43
|
46
|
43
|
42
|
43
|
37
|
38
|
49
|
45
|
42
|
39
|
20
|
37
|
46
|
29
|
32
|
23
|
31
|
42
|
35
|
31
|
52
|
29
|
|
2025/11
|
30
|
37
|
40
|
26
|
16
|
23
|
25
|
27
|
29
|
20
|
21
|
25
|
16
|
24
|
40
|
39
|
36
|
43
|
24
|
31
|
33
|
40
|
57
|
51
|
45
|
57
|
49
|
55
|
56
|
52
|
|
|
2025/10
|
14
|
11
|
10
|
20
|
22
|
15
|
16
|
19
|
25
|
22
|
19
|
13
|
11
|
10
|
13
|
19
|
28
|
26
|
25
|
22
|
12
|
11
|
22
|
31
|
33
|
39
|
52
|
48
|
32
|
35
|
34
|
|
2025/09
|
9
|
10
|
11
|
11
|
9
|
15
|
14
|
17
|
18
|
14
|
11
|
11
|
9
|
9
|
10
|
16
|
18
|
16
|
14
|
14
|
10
|
21
|
20
|
19
|
20
|
21
|
18
|
22
|
14
|
17
|
|
|
2025/08
|
23
|
26
|
35
|
30
|
17
|
17
|
20
|
27
|
21
|
10
|
13
|
16
|
20
|
17
|
14
|
18
|
17
|
12
|
15
|
16
|
14
|
14
|
19
|
20
|
14
|
19
|
13
|
24
|
18
|
18
|
10
|
|
2025/07
|
12
|
13
|
18
|
19
|
22
|
17
|
33
|
14
|
20
|
17
|
17
|
21
|
30
|
24
|
22
|
24
|
26
|
26
|
29
|
14
|
17
|
20
|
15
|
26
|
33
|
38
|
27
|
29
|
24
|
32
|
23
|
|
2025/06
|
27
|
24
|
20
|
14
|
20
|
18
|
15
|
11
|
12
|
11
|
14
|
13
|
13
|
25
|
30
|
24
|
18
|
13
|
12
|
11
|
13
|
14
|
11
|
11
|
10
|
12
|
13
|
11
|
12
|
11
|
|
|
2025/05
|
35
|
37
|
44
|
23
|
25
|
20
|
17
|
46
|
26
|
31
|
28
|
24
|
32
|
25
|
17
|
13
|
12
|
13
|
14
|
12
|
18
|
16
|
19
|
21
|
37
|
27
|
32
|
29
|
20
|
12
|
23
|
|
2025/04
|
22
|
19
|
28
|
41
|
31
|
42
|
44
|
50
|
38
|
25
|
22
|
25
|
152
|
154
|
105
|
75
|
58
|
46
|
25
|
24
|
22
|
23
|
22
|
19
|
21
|
15
|
28
|
33
|
25
|
40
|
|
|
2025/03
|
31
|
31
|
17
|
23
|
20
|
11
|
18
|
30
|
28
|
36
|
35
|
23
|
29
|
26
|
15
|
11
|
41
|
37
|
38
|
42
|
44
|
40
|
40
|
41
|
38
|
29
|
26
|
30
|
12
|
9
|
10
|
|
2025/02
|
20
|
17
|
13
|
14
|
36
|
33
|
25
|
40
|
43
|
43
|
29
|
20
|
39
|
40
|
26
|
48
|
39
|
61
|
37
|
35
|
39
|
32
|
18
|
21
|
49
|
48
|
28
|
26
|
|||
|
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