Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
26
PM2.5
58
*
PM10
106
O3
0.5
CO
8
SO2
10
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
12 Jan
53
Good
Tue
13 Jan
81
Good
Wed
14 Jan
59
Good
Thu
15 Jan
60
Good
Fri
16 Jan
65
Good
Sat
17 Jan
19
Excellent
Sun
18 Jan
35
Excellent
Air quality in the last 12 months (New Territories)
|
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
|
|||
|
2025/01
|
52
|
60
|
50
|
46
|
52
|
56
|
46
|
59
|
57
|
46
|
45
|
29
|
36
|
39
|
51
|
63
|
52
|
53
|
47
|
47
|
35
|
49
|
41
|
20
|
24
|
21
|
18
|
35
|
55
|
37
|
29
|
|
2024/12
|
37
|
40
|
37
|
30
|
50
|
59
|
54
|
33
|
27
|
29
|
44
|
34
|
37
|
55
|
47
|
43
|
48
|
47
|
52
|
58
|
47
|
53
|
60
|
58
|
55
|
41
|
62
|
59
|
63
|
56
|
60
|
|
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