Air Quality
Excellent
No health implications.
10
PM2.5
34
PM10
20
O3
0.6
CO
7
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
5 Sep
36
Excellent
Sat
6 Sep
32
Excellent
Sun
7 Sep
37
Excellent
Mon
8 Sep
31
Excellent
Tue
9 Sep
33
Excellent
Wed
10 Sep
30
Excellent
Thu
11 Sep
34
Excellent
Simao Air quality rank
Air quality in the last 12 months (Simao)
|
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
|
|
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
|
|
|
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