Air Quality
Excellent
No health implications.
6
PM2.5
11
PM10
20
O3
0.5
CO
6
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
13 Oct
56
Good
Tue
14 Oct
61
Good
Wed
15 Oct
83
Good
Thu
16 Oct
57
Good
Fri
17 Oct
58
Good
Sat
18 Oct
64
Good
Sun
19 Oct
15
Excellent
Air quality in the last 12 months (Coloane Island)
|
2025/08
|
21
|
31
|
42
|
44
|
28
|
19
|
23
|
25
|
20
|
13
|
14
|
16
|
18
|
19
|
14
|
21
|
16
|
13
|
18
|
19
|
15
|
8
|
22
|
20
|
15
|
20
|
18
|
30
|
16
|
18
|
11
|
|
2025/07
|
11
|
13
|
21
|
21
|
25
|
15
|
27
|
12
|
19
|
19
|
16
|
18
|
28
|
18
|
19
|
22
|
24
|
26
|
33
|
15
|
19
|
27
|
17
|
30
|
22
|
33
|
23
|
25
|
19
|
30
|
20
|
|
2025/06
|
33
|
23
|
24
|
20
|
18
|
20
|
13
|
11
|
13
|
11
|
14
|
16
|
13
|
29
|
33
|
25
|
20
|
13
|
11
|
11
|
12
|
12
|
9
|
10
|
11
|
13
|
10
|
10
|
12
|
8
|
|
|
2025/05
|
37
|
38
|
44
|
27
|
23
|
19
|
18
|
46
|
27
|
38
|
30
|
32
|
40
|
32
|
23
|
17
|
12
|
11
|
13
|
12
|
18
|
16
|
14
|
21
|
44
|
36
|
35
|
30
|
17
|
14
|
31
|
|
2025/04
|
28
|
27
|
33
|
42
|
26
|
53
|
50
|
55
|
47
|
28
|
23
|
23
|
204
|
179
|
119
|
90
|
66
|
53
|
32
|
25
|
24
|
24
|
23
|
20
|
30
|
31
|
40
|
37
|
30
|
49
|
|
|
2025/03
|
38
|
39
|
19
|
21
|
24
|
13
|
21
|
35
|
34
|
38
|
35
|
29
|
29
|
36
|
20
|
11
|
48
|
48
|
48
|
45
|
48
|
45
|
39
|
34
|
35
|
28
|
28
|
30
|
15
|
11
|
13
|
|
2025/02
|
27
|
21
|
13
|
20
|
40
|
44
|
29
|
45
|
51
|
42
|
34
|
28
|
41
|
36
|
28
|
56
|
46
|
61
|
40
|
36
|
36
|
37
|
28
|
24
|
50
|
52
|
36
|
31
|
|||
|
2025/01
|
62
|
66
|
53
|
52
|
59
|
73
|
50
|
58
|
64
|
44
|
36
|
26
|
31
|
30
|
44
|
59
|
53
|
57
|
53
|
51
|
42
|
54
|
40
|
26
|
24
|
22
|
21
|
33
|
57
|
43
|
35
|
|
2024/12
|
45
|
47
|
43
|
37
|
52
|
65
|
67
|
44
|
43
|
39
|
45
|
43
|
45
|
55
|
50
|
48
|
59
|
52
|
55
|
66
|
56
|
58
|
67
|
67
|
65
|
53
|
67
|
61
|
70
|
70
|
70
|
|
2024/11
|
43
|
31
|
47
|
54
|
48
|
58
|
43
|
45
|
51
|
45
|
47
|
50
|
39
|
17
|
15
|
23
|
19
|
30
|
19
|
10
|
19
|
32
|
37
|
44
|
44
|
21
|
37
|
41
|
41
|
48
|
|
|
2024/10
|
33
|
33
|
44
|
43
|
48
|
43
|
45
|
50
|
46
|
36
|
32
|
40
|
32
|
28
|
28
|
26
|
29
|
28
|
42
|
21
|
39
|
32
|
31
|
42
|
47
|
48
|
49
|
26
|
35
|
42
|
42
|
|
2024/09
|
12
|
15
|
37
|
26
|
25
|
19
|
29
|
24
|
10
|
20
|
28
|
14
|
19
|
21
|
30
|
22
|
23
|
20
|
28
|
25
|
14
|
15
|
16
|
12
|
12
|
16
|
19
|
28
|
26
|
37
|
|
|
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