Air Quality
Excellent
No health implications.
3
PM2.5
8
PM10
29
O3
0.4
CO
7
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
22 Aug
49
Excellent
Sat
23 Aug
99
Good
Sun
24 Aug
54
Good
Mon
25 Aug
48
Excellent
Tue
26 Aug
45
Excellent
Wed
27 Aug
50
Excellent
Thu
28 Aug
22
Excellent
Air quality in the last 12 months (Coloane Island)
|
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
|
|
|
2024/08
|
27
|
24
|
21
|
18
|
30
|
30
|
25
|
16
|
16
|
19
|
23
|
18
|
16
|
16
|
14
|
12
|
14
|
16
|
16
|
16
|
14
|
16
|
19
|
17
|
13
|
12
|
18
|
32
|
39
|
26
|
12
|
|
2024/07
|
23
|
25
|
12
|
13
|
13
|
10
|
8
|
12
|
10
|
8
|
8
|
10
|
10
|
14
|
13
|
13
|
13
|
14
|
12
|
18
|
15
|
13
|
13
|
19
|
22
|
22
|
26
|
17
|
11
|
8
|
16
|
|
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