Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
34
PM2.5
54
*
PM10
104
O3
1.1
CO
7
SO2
30
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
28 Jan
76
Good
Thu
29 Jan
84
Good
Fri
30 Jan
62
Good
Sat
31 Jan
53
Good
Sun
1 Feb
59
Good
Mon
2 Feb
61
Good
Tue
3 Feb
37
Excellent
Sihui Air quality rank
Air quality in the last 12 months (Sihui)
|
2025/12
|
41
|
31
|
62
|
63
|
64
|
69
|
73
|
56
|
57
|
63
|
57
|
57
|
38
|
21
|
38
|
54
|
39
|
40
|
72
|
45
|
53
|
77
|
77
|
67
|
17
|
37
|
41
|
48
|
56
|
46
|
62
|
|
2025/11
|
28
|
32
|
22
|
11
|
13
|
24
|
34
|
47
|
18
|
9
|
11
|
17
|
21
|
28
|
37
|
41
|
43
|
32
|
21
|
25
|
28
|
32
|
45
|
40
|
35
|
46
|
43
|
49
|
55
|
56
|
|
|
2025/10
|
43
|
25
|
25
|
35
|
17
|
22
|
33
|
32
|
44
|
46
|
47
|
36
|
25
|
26
|
45
|
50
|
47
|
49
|
27
|
14
|
12
|
11
|
15
|
31
|
36
|
44
|
43
|
45
|
50
|
45
|
31
|
|
2025/09
|
28
|
26
|
25
|
26
|
27
|
30
|
26
|
12
|
17
|
22
|
29
|
19
|
27
|
27
|
29
|
25
|
31
|
28
|
27
|
20
|
14
|
22
|
19
|
10
|
18
|
25
|
34
|
35
|
41
|
35
|
|
|
2025/08
|
23
|
26
|
29
|
35
|
25
|
20
|
32
|
35
|
35
|
26
|
29
|
27
|
27
|
28
|
14
|
20
|
26
|
16
|
22
|
21
|
24
|
30
|
40
|
28
|
24
|
28
|
35
|
31
|
29
|
24
|
28
|
|
2025/07
|
19
|
28
|
34
|
39
|
43
|
39
|
35
|
27
|
28
|
24
|
18
|
31
|
26
|
33
|
33
|
33
|
37
|
37
|
27
|
13
|
16
|
16
|
22
|
21
|
18
|
22
|
37
|
37
|
27
|
30
|
23
|
|
2025/06
|
41
|
36
|
18
|
37
|
44
|
39
|
32
|
26
|
33
|
39
|
25
|
25
|
20
|
21
|
20
|
31
|
22
|
23
|
24
|
25
|
24
|
23
|
24
|
25
|
27
|
23
|
19
|
21
|
26
|
24
|
|
|
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
|
|
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