Air Quality
Excellent
No health implications.
8
PM2.5
15
PM10
35
O3
0.5
CO
6
SO2
5
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
7 Jun
54
Good
Sun
8 Jun
52
Good
Mon
9 Jun
44
Excellent
Tue
10 Jun
55
Good
Wed
11 Jun
61
Good
Thu
12 Jun
62
Good
Fri
13 Jun
30
Excellent
Air quality in the last 12 months (New Territories)
|
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
|
|
2024/11
|
33
|
29
|
40
|
47
|
43
|
53
|
41
|
39
|
41
|
38
|
39
|
40
|
29
|
13
|
12
|
22
|
18
|
30
|
15
|
8
|
14
|
25
|
29
|
36
|
36
|
18
|
31
|
33
|
32
|
36
|
|
|
2024/10
|
28
|
28
|
39
|
35
|
40
|
38
|
39
|
42
|
39
|
32
|
28
|
39
|
26
|
26
|
25
|
24
|
26
|
27
|
37
|
20
|
38
|
25
|
29
|
41
|
45
|
45
|
45
|
21
|
28
|
39
|
41
|
|
2024/09
|
13
|
18
|
34
|
28
|
22
|
13
|
21
|
14
|
11
|
21
|
27
|
23
|
21
|
21
|
32
|
15
|
21
|
21
|
31
|
22
|
15
|
15
|
12
|
10
|
22
|
29
|
28
|
34
|
24
|
35
|
|
|
2024/08
|
23
|
26
|
20
|
22
|
31
|
26
|
32
|
19
|
16
|
17
|
20
|
17
|
19
|
15
|
15
|
14
|
16
|
17
|
17
|
14
|
13
|
26
|
29
|
22
|
15
|
18
|
20
|
33
|
35
|
25
|
16
|
|
2024/07
|
22
|
22
|
12
|
12
|
12
|
11
|
11
|
17
|
11
|
10
|
11
|
10
|
12
|
13
|
13
|
12
|
13
|
13
|
14
|
16
|
16
|
12
|
13
|
19
|
28
|
25
|
17
|
10
|
11
|
9
|
13
|
|
2024/06
|
15
|
24
|
21
|
24
|
21
|
21
|
12
|
11
|
12
|
13
|
19
|
23
|
23
|
24
|
17
|
21
|
18
|
19
|
17
|
13
|
18
|
23
|
10
|
12
|
14
|
14
|
12
|
13
|
11
|
18
|
|
|
2024/05
|
20
|
25
|
29
|
20
|
14
|
20
|
36
|
32
|
33
|
29
|
30
|
35
|
32
|
23
|
29
|
38
|
35
|
28
|
30
|
15
|
14
|
21
|
12
|
11
|
15
|
18
|
20
|
18
|
28
|
17
|
17
|
|
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