Air Quality
Excellent
No health implications.
5
PM2.5
31
PM10
38
O3
0.5
CO
4
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
20 Mar
80
Good
Fri
21 Mar
87
Good
Sat
22 Mar
87
Good
Sun
23 Mar
55
Good
Mon
24 Mar
54
Good
Tue
25 Mar
33
Excellent
Wed
26 Mar
42
Excellent
Air quality in the last 12 months (Simao)
|
2025/02
|
60
|
59
|
56
|
49
|
44
|
58
|
57
|
47
|
24
|
37
|
46
|
42
|
52
|
58
|
66
|
63
|
55
|
52
|
53
|
60
|
65
|
65
|
60
|
41
|
36
|
34
|
49
|
55
|
|||
|
2025/01
|
32
|
37
|
37
|
43
|
48
|
52
|
44
|
39
|
49
|
48
|
51
|
37
|
41
|
42
|
37
|
47
|
48
|
45
|
43
|
43
|
40
|
38
|
44
|
38
|
38
|
43
|
36
|
43
|
61
|
54
|
53
|
|
2024/12
|
29
|
27
|
31
|
27
|
30
|
33
|
35
|
41
|
38
|
36
|
39
|
42
|
39
|
35
|
26
|
24
|
30
|
27
|
35
|
42
|
35
|
41
|
36
|
41
|
38
|
43
|
45
|
45
|
40
|
36
|
39
|
|
2024/11
|
36
|
34
|
40
|
41
|
38
|
35
|
34
|
25
|
22
|
25
|
30
|
28
|
33
|
27
|
27
|
31
|
32
|
38
|
40
|
34
|
30
|
28
|
33
|
34
|
31
|
28
|
24
|
24
|
21
|
28
|
|
|
2024/10
|
22
|
20
|
24
|
21
|
25
|
26
|
33
|
32
|
33
|
27
|
30
|
25
|
29
|
32
|
29
|
24
|
23
|
34
|
34
|
26
|
23
|
26
|
25
|
29
|
30
|
32
|
39
|
49
|
42
|
39
|
36
|
|
2024/09
|
29
|
32
|
30
|
26
|
25
|
32
|
39
|
33
|
21
|
18
|
20
|
21
|
23
|
24
|
28
|
29
|
30
|
21
|
28
|
35
|
35
|
29
|
29
|
33
|
30
|
29
|
29
|
20
|
22
|
25
|
|
|
2024/08
|
18
|
17
|
22
|
23
|
20
|
19
|
16
|
19
|
21
|
24
|
25
|
35
|
36
|
28
|
27
|
26
|
27
|
26
|
20
|
20
|
24
|
18
|
18
|
18
|
22
|
18
|
20
|
21
|
23
|
23
|
26
|
|
2024/07
|
21
|
20
|
19
|
19
|
15
|
18
|
15
|
19
|
17
|
17
|
16
|
16
|
17
|
17
|
19
|
20
|
18
|
22
|
20
|
18
|
17
|
15
|
15
|
16
|
18
|
19
|
18
|
18
|
15
|
19
|
16
|
|
2024/06
|
22
|
26
|
28
|
35
|
39
|
23
|
16
|
17
|
19
|
23
|
22
|
18
|
19
|
18
|
23
|
26
|
36
|
34
|
27
|
24
|
24
|
19
|
24
|
21
|
19
|
17
|
17
|
14
|
17
|
16
|
|
|
2024/05
|
59
|
55
|
46
|
58
|
62
|
60
|
58
|
55
|
48
|
32
|
32
|
39
|
47
|
41
|
41
|
32
|
30
|
30
|
40
|
39
|
39
|
35
|
27
|
27
|
19
|
20
|
19
|
19
|
24
|
47
|
45
|
|
2024/04
|
62
|
64
|
69
|
78
|
73
|
91
|
101
|
82
|
91
|
81
|
71
|
76
|
76
|
77
|
87
|
80
|
74
|
50
|
66
|
54
|
55
|
59
|
61
|
59
|
48
|
56
|
61
|
70
|
68
|
71
|
|
|
2024/03
|
50
|
51
|
58
|
59
|
47
|
39
|
54
|
72
|
67
|
59
|
67
|
62
|
69
|
76
|
73
|
89
|
84
|
70
|
64
|
49
|
46
|
42
|
40
|
45
|
45
|
58
|
70
|
72
|
71
|
89
|
89
|
|
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