Air Quality
Excellent
No health implications.
12
PM2.5
22
PM10
130
O3
0.4
CO
6
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
28 Jun
56
Good
Sun
29 Jun
54
Good
Mon
30 Jun
56
Good
Tue
1 Jul
55
Good
Wed
2 Jul
55
Good
Thu
3 Jul
62
Good
Fri
4 Jul
25
Excellent
Sihui Air quality rank
Air quality in the last 12 months (Sihui)
|
2025/05
|
32
|
49
|
43
|
32
|
33
|
32
|
26
|
30
|
23
|
37
|
33
|
42
|
52
|
43
|
31
|
24
|
31
|
24
|
34
|
33
|
31
|
33
|
28
|
22
|
39
|
46
|
55
|
60
|
33
|
23
|
40
|
|
2025/04
|
25
|
42
|
63
|
54
|
67
|
67
|
82
|
69
|
60
|
46
|
40
|
71
|
184
|
146
|
94
|
90
|
75
|
68
|
43
|
42
|
31
|
37
|
41
|
32
|
15
|
40
|
42
|
26
|
41
|
49
|
|
|
2025/03
|
37
|
33
|
46
|
26
|
14
|
10
|
16
|
28
|
42
|
66
|
43
|
36
|
34
|
35
|
22
|
18
|
45
|
32
|
32
|
42
|
55
|
63
|
60
|
68
|
67
|
52
|
39
|
41
|
14
|
9
|
10
|
|
2025/02
|
44
|
29
|
10
|
30
|
35
|
40
|
19
|
43
|
42
|
41
|
50
|
54
|
43
|
59
|
44
|
58
|
41
|
41
|
48
|
51
|
26
|
32
|
16
|
32
|
53
|
62
|
71
|
50
|
|||
|
2025/01
|
73
|
70
|
52
|
64
|
76
|
70
|
73
|
72
|
70
|
42
|
38
|
42
|
50
|
68
|
50
|
59
|
47
|
51
|
52
|
55
|
66
|
72
|
63
|
45
|
33
|
19
|
25
|
39
|
58
|
71
|
41
|
|
2024/12
|
59
|
67
|
58
|
55
|
66
|
71
|
40
|
21
|
53
|
55
|
42
|
24
|
31
|
56
|
45
|
40
|
46
|
41
|
47
|
64
|
54
|
60
|
63
|
67
|
61
|
60
|
75
|
78
|
80
|
87
|
65
|
|
2024/11
|
36
|
33
|
45
|
43
|
35
|
46
|
32
|
30
|
38
|
34
|
36
|
36
|
38
|
27
|
19
|
21
|
23
|
18
|
17
|
15
|
19
|
29
|
31
|
41
|
25
|
14
|
23
|
29
|
27
|
42
|
|
|
2024/10
|
27
|
22
|
33
|
29
|
29
|
31
|
49
|
63
|
47
|
30
|
35
|
49
|
66
|
69
|
49
|
46
|
35
|
45
|
34
|
23
|
26
|
26
|
14
|
24
|
26
|
31
|
26
|
12
|
20
|
30
|
32
|
|
2024/09
|
29
|
33
|
27
|
25
|
28
|
14
|
18
|
20
|
18
|
27
|
34
|
39
|
29
|
31
|
20
|
23
|
24
|
24
|
32
|
27
|
18
|
13
|
16
|
13
|
26
|
27
|
31
|
35
|
35
|
30
|
|
|
2024/08
|
25
|
29
|
28
|
33
|
29
|
26
|
39
|
31
|
31
|
27
|
25
|
25
|
27
|
21
|
16
|
20
|
19
|
21
|
27
|
25
|
21
|
27
|
38
|
28
|
29
|
25
|
33
|
27
|
28
|
33
|
36
|
|
2024/07
|
27
|
25
|
19
|
22
|
24
|
22
|
19
|
20
|
22
|
18
|
17
|
16
|
17
|
24
|
23
|
23
|
20
|
20
|
25
|
26
|
21
|
24
|
22
|
21
|
28
|
33
|
17
|
17
|
17
|
16
|
16
|
|
2024/06
|
11
|
18
|
26
|
28
|
36
|
14
|
29
|
26
|
17
|
19
|
21
|
24
|
28
|
21
|
16
|
20
|
23
|
23
|
24
|
26
|
16
|
26
|
14
|
14
|
18
|
23
|
29
|
19
|
19
|
23
|
|
|
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