Hong Kong - China   2025-03-31   Monday   22.38N, 114.19E

New Territories

Hong Kong - China
2025-03-31

Air Quality

Excellent

No health implications.

3

PM2.5

10

PM10

18

O3

0.5

CO

5

SO2

18

NO2

No health implications.

Advise

Everyone can continue their outdoor activities normally.

Air Quality

Today

31 Mar

41 Excellent

Tue

1 Apr

55 Good

Wed

2 Apr

80 Good

Thu

3 Apr

77 Good

Fri

4 Apr

62 Good

Sat

5 Apr

51 Good

Sun

6 Apr

17 Excellent

Monthly Average AQI (New Territories)

2020/03 - 2025/02

Air quality in the last 12 months (New Territories)

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
2024/04
51
49
23
20
42
26
26
34
18
30
38
36
34
22
30
29
24
21
24
23
15
24
20
34
17
21
30
16
20
25
2024/03
19
23
32
36
36
45
35
33
50
28
25
16
59
59
60
60
49
35
21
51
50
53
43
26
27
50
27
37
48
36
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