Air Quality
Excellent
No health implications.
8
PM2.5
25
PM10
12
O3
0.6
CO
6
SO2
3
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
17 Sep
38
Excellent
Thu
18 Sep
39
Excellent
Fri
19 Sep
30
Excellent
Sat
20 Sep
33
Excellent
Sun
21 Sep
38
Excellent
Mon
22 Sep
49
Excellent
Tue
23 Sep
40
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