China   2025-03-29   Saturday   22.31N, 114.18E

Hong Kong

China
2025-03-29

Air Quality

Excellent

No health implications.

4

PM2.5

12

PM10

24

O3

0.5

CO

6

SO2

20

NO2

No health implications.

Advise

Everyone can continue their outdoor activities normally.

Air Quality

Today

29 Mar

41 Excellent

Sun

30 Mar

48 Excellent

Mon

31 Mar

49 Excellent

Tue

1 Apr

50 Excellent

Wed

2 Apr

56 Good

Thu

3 Apr

55 Good

Fri

4 Apr

34 Excellent

Monthly Average AQI (Hong Kong)

2020/03 - 2025/02

Air quality in the last 12 months (Hong Kong)

2025/02
21
17
13
14
36
33
25
40
45
42
29
21
39
39
26
49
40
62
37
35
38
31
20
21
48
50
28
27
2025/01
52
61
50
45
52
57
45
58
57
46
44
28
34
37
51
62
52
53
47
47
35
49
42
20
24
21
18
33
52
37
30
2024/12
36
40
36
28
49
59
56
35
28
28
43
36
38
54
47
43
47
48
52
58
48
52
61
58
56
43
63
59
63
57
61
2024/11
33
29
39
47
44
53
41
39
41
37
39
39
28
13
11
22
17
30
15
8
14
26
29
36
37
18
31
33
32
35
2024/10
29
29
40
36
41
39
39
42
39
32
27
38
25
25
24
23
25
27
37
19
38
26
29
40
45
45
45
22
28
39
41
2024/09
13
17
34
27
22
13
22
15
13
21
27
20
20
20
31
15
20
21
30
22
16
15
12
11
23
27
27
33
23
35
2024/08
24
27
20
21
31
25
30
18
15
17
20
16
18
13
15
13
15
17
16
14
13
24
27
22
14
16
19
32
35
24
15
2024/07
22
23
12
12
12
11
11
16
10
10
10
9
11
12
12
12
12
13
14
15
15
12
12
18
27
24
18
10
11
8
13
2024/06
16
23
22
25
21
23
12
11
12
14
19
23
22
24
18
22
18
19
17
13
18
24
10
12
15
14
13
13
11
18
2024/05
21
26
29
21
15
19
36
32
34
29
29
35
32
23
28
37
35
27
29
16
15
22
11
12
16
17
20
18
28
17
16
2024/04
51
49
23
20
42
27
25
35
18
30
37
35
33
21
29
28
24
19
24
24
16
23
20
34
17
20
30
16
20
25
2024/03
18
22
33
36
36
45
36
34
50
30
25
16
58
59
60
60
49
34
21
50
49
53
42
25
25
52
26
36
47
35
27
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