Air Quality
Excellent
No health implications.
17
PM2.5
35
PM10
49
O3
0.6
CO
6
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 Jul
44
Excellent
Mon
20 Jul
44
Excellent
Tue
21 Jul
42
Excellent
Wed
22 Jul
47
Excellent
Thu
23 Jul
47
Excellent
Fri
24 Jul
48
Excellent
Sat
25 Jul
25
Excellent
Air quality in the last 12 months (New Territories)
|
2026/06
|
39
|
30
|
25
|
22
|
25
|
20
|
20
|
18
|
17
|
25
|
26
|
33
|
20
|
26
|
18
|
14
|
13
|
14
|
18
|
18
|
17
|
18
|
21
|
25
|
26
|
16
|
21
|
17
|
17
|
16
|
|
|
2026/05
|
27
|
34
|
24
|
25
|
29
|
25
|
26
|
27
|
30
|
32
|
35
|
30
|
18
|
16
|
19
|
26
|
27
|
34
|
22
|
18
|
16
|
18
|
22
|
21
|
20
|
21
|
20
|
23
|
31
|
37
|
39
|
|
2026/04
|
36
|
34
|
41
|
29
|
24
|
30
|
32
|
40
|
34
|
25
|
28
|
21
|
20
|
16
|
18
|
19
|
25
|
68
|
57
|
44
|
21
|
24
|
26
|
14
|
24
|
33
|
34
|
27
|
21
|
28
|
|
|
2026/03
|
23
|
24
|
13
|
9
|
17
|
24
|
39
|
48
|
41
|
25
|
28
|
40
|
44
|
38
|
39
|
35
|
30
|
26
|
23
|
34
|
36
|
33
|
31
|
26
|
30
|
29
|
39
|
30
|
33
|
25
|
30
|
|
2026/02
|
22
|
33
|
39
|
45
|
29
|
19
|
33
|
26
|
37
|
31
|
27
|
41
|
38
|
24
|
23
|
22
|
31
|
33
|
40
|
44
|
37
|
32
|
43
|
60
|
39
|
21
|
28
|
14
|
|||
|
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
|
|
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