Air Quality
Excellent
No health implications.
4
PM2.5
32
PM10
122
O3
0.5
CO
7
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 Apr
52
Good
Sun
20 Apr
55
Good
Mon
21 Apr
50
Excellent
Tue
22 Apr
50
Excellent
Wed
23 Apr
82
Good
Thu
24 Apr
86
Good
Fri
25 Apr
32
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