Air Quality
Excellent
No health implications.
18
PM2.5
23
PM10
55
O3
0.6
CO
5
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
4 Feb
57
Good
Wed
5 Feb
61
Good
Thu
6 Feb
60
Good
Fri
7 Feb
57
Good
Sat
8 Feb
54
Good
Sun
9 Feb
55
Good
Mon
10 Feb
27
Excellent
Air quality in the last 12 months (Sihui)
|
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
|
|
|
2024/05
|
20
|
22
|
27
|
31
|
33
|
49
|
22
|
27
|
44
|
52
|
40
|
27
|
37
|
52
|
52
|
56
|
54
|
42
|
25
|
10
|
11
|
21
|
33
|
24
|
29
|
23
|
30
|
25
|
29
|
46
|
18
|
|
2024/04
|
46
|
47
|
35
|
36
|
14
|
17
|
16
|
16
|
28
|
44
|
57
|
54
|
50
|
46
|
44
|
38
|
36
|
39
|
34
|
21
|
23
|
46
|
35
|
33
|
32
|
33
|
42
|
46
|
33
|
29
|
|
|
2024/03
|
34
|
41
|
54
|
49
|
46
|
33
|
40
|
45
|
46
|
23
|
17
|
32
|
54
|
40
|
47
|
65
|
62
|
57
|
19
|
62
|
62
|
60
|
49
|
43
|
43
|
30
|
45
|
44
|
39
|
45
|
39
|
|
2024/02
|
38
|
30
|
28
|
29
|
31
|
13
|
10
|
13
|
27
|
46
|
45
|
52
|
44
|
39
|
34
|
26
|
37
|
30
|
31
|
26
|
36
|
25
|
14
|
13
|
13
|
15
|
13
|
22
|
17
|
||
|
2024/01
|
74
|
70
|
24
|
41
|
68
|
75
|
52
|
61
|
55
|
21
|
45
|
51
|
81
|
93
|
74
|
56
|
60
|
40
|
50
|
28
|
19
|
17
|
28
|
35
|
45
|
40
|
30
|
32
|
43
|
61
|
68
|
|
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