Air Quality
Excellent
No health implications.
21
PM2.5
41
PM10
87
O3
0.7
CO
2
SO2
4
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
11 Mar
87
Good
Thu
12 Mar
81
Good
Fri
13 Mar
83
Good
Sat
14 Mar
52
Good
Sun
15 Mar
59
Good
Mon
16 Mar
53
Good
Tue
17 Mar
29
Excellent
Simao Air quality rank
Air quality in the last 12 months (Simao)
|
2026/02
|
54
|
54
|
54
|
51
|
51
|
42
|
49
|
53
|
48
|
49
|
52
|
54
|
53
|
53
|
51
|
64
|
96
|
51
|
55
|
53
|
47
|
49
|
52
|
61
|
46
|
34
|
48
|
60
|
|||
|
2026/01
|
44
|
44
|
42
|
41
|
39
|
41
|
34
|
35
|
39
|
46
|
42
|
46
|
45
|
45
|
51
|
50
|
47
|
47
|
49
|
47
|
45
|
46
|
50
|
49
|
39
|
48
|
48
|
41
|
56
|
52
|
49
|
|
2025/12
|
42
|
39
|
38
|
37
|
41
|
40
|
39
|
36
|
39
|
38
|
40
|
41
|
41
|
41
|
35
|
34
|
32
|
31
|
36
|
36
|
32
|
36
|
39
|
37
|
43
|
40
|
39
|
41
|
41
|
39
|
43
|
|
2025/11
|
28
|
23
|
22
|
22
|
24
|
26
|
32
|
31
|
24
|
24
|
28
|
27
|
29
|
29
|
30
|
33
|
34
|
22
|
23
|
30
|
27
|
30
|
30
|
38
|
41
|
45
|
52
|
50
|
47
|
44
|
|
|
2025/10
|
24
|
27
|
27
|
27
|
27
|
33
|
27
|
27
|
27
|
28
|
27
|
31
|
38
|
32
|
33
|
28
|
29
|
33
|
36
|
38
|
38
|
30
|
31
|
36
|
33
|
26
|
31
|
32
|
37
|
35
|
34
|
|
2025/09
|
29
|
29
|
26
|
28
|
29
|
30
|
33
|
34
|
35
|
26
|
25
|
26
|
25
|
21
|
24
|
27
|
26
|
27
|
33
|
29
|
31
|
32
|
26
|
26
|
32
|
25
|
27
|
33
|
26
|
27
|
|
|
2025/08
|
24
|
27
|
28
|
27
|
28
|
25
|
20
|
23
|
25
|
26
|
28
|
25
|
26
|
30
|
32
|
28
|
31
|
31
|
30
|
25
|
25
|
24
|
22
|
27
|
28
|
28
|
22
|
24
|
27
|
30
|
34
|
|
2025/07
|
30
|
22
|
22
|
23
|
24
|
21
|
24
|
25
|
32
|
26
|
27
|
31
|
31
|
25
|
26
|
28
|
24
|
21
|
26
|
30
|
33
|
31
|
26
|
21
|
23
|
26
|
21
|
31
|
29
|
33
|
27
|
|
2025/06
|
23
|
24
|
26
|
53
|
49
|
51
|
44
|
37
|
29
|
30
|
45
|
47
|
49
|
45
|
27
|
25
|
24
|
25
|
27
|
33
|
36
|
23
|
24
|
22
|
24
|
28
|
29
|
22
|
24
|
26
|
|
|
2025/05
|
27
|
31
|
26
|
30
|
30
|
40
|
48
|
54
|
54
|
57
|
34
|
24
|
35
|
30
|
32
|
29
|
27
|
27
|
34
|
41
|
40
|
38
|
38
|
51
|
23
|
19
|
21
|
23
|
26
|
24
|
24
|
|
2025/04
|
63
|
45
|
46
|
83
|
108
|
79
|
68
|
60
|
67
|
66
|
59
|
58
|
46
|
40
|
28
|
28
|
28
|
35
|
42
|
35
|
39
|
47
|
60
|
68
|
69
|
74
|
77
|
75
|
46
|
32
|
|
|
2025/03
|
51
|
59
|
68
|
75
|
74
|
78
|
60
|
54
|
51
|
51
|
65
|
60
|
69
|
81
|
79
|
76
|
79
|
38
|
23
|
53
|
58
|
53
|
57
|
52
|
49
|
52
|
75
|
105
|
94
|
103
|
92
|
|
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