Air Quality
Excellent
No health implications.
3
PM2.5
6
PM10
24
O3
0.5
CO
7
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
12 Sep
46
Excellent
Sat
13 Sep
50
Excellent
Sun
14 Sep
50
Excellent
Mon
15 Sep
48
Excellent
Tue
16 Sep
47
Excellent
Wed
17 Sep
51
Good
Thu
18 Sep
30
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