Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
33
PM2.5
53
*
PM10
21
O3
0.7
CO
11
SO2
45
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
25 Apr
49
Excellent
Fri
26 Apr
48
Excellent
Sat
27 Apr
49
Excellent
Sun
28 Apr
49
Excellent
Mon
29 Apr
49
Excellent
Tue
30 Apr
48
Excellent
Air quality in the last 12 months (Sihui)
|
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
|
|
2023/12
|
46
|
45
|
46
|
42
|
24
|
26
|
35
|
66
|
92
|
59
|
43
|
33
|
41
|
65
|
72
|
16
|
26
|
26
|
8
|
28
|
25
|
53
|
46
|
32
|
35
|
55
|
54
|
56
|
54
|
55
|
56
|
|
2023/11
|
43
|
62
|
85
|
64
|
44
|
35
|
27
|
53
|
70
|
66
|
24
|
16
|
15
|
17
|
26
|
24
|
36
|
44
|
46
|
54
|
70
|
77
|
81
|
55
|
75
|
71
|
67
|
54
|
68
|
37
|
|
|
2023/10
|
38
|
27
|
37
|
41
|
30
|
27
|
26
|
17
|
14
|
11
|
18
|
31
|
31
|
41
|
46
|
47
|
49
|
41
|
40
|
22
|
18
|
20
|
32
|
42
|
48
|
70
|
63
|
40
|
35
|
40
|
38
|
|
2023/09
|
23
|
19
|
25
|
26
|
31
|
23
|
11
|
17
|
23
|
16
|
19
|
27
|
25
|
14
|
12
|
27
|
30
|
30
|
30
|
30
|
39
|
41
|
59
|
40
|
31
|
39
|
47
|
36
|
38
|
40
|
|
|
2023/08
|
40
|
56
|
75
|
28
|
26
|
28
|
28
|
28
|
30
|
27
|
29
|
35
|
29
|
32
|
32
|
38
|
36
|
40
|
49
|
34
|
26
|
31
|
29
|
32
|
24
|
32
|
26
|
25
|
18
|
23
|
25
|
|
2023/07
|
26
|
26
|
22
|
26
|
29
|
22
|
21
|
26
|
22
|
26
|
26
|
25
|
30
|
32
|
41
|
31
|
17
|
21
|
30
|
24
|
31
|
32
|
29
|
29
|
29
|
37
|
26
|
26
|
39
|
23
|
24
|
|
2023/06
|
40
|
64
|
49
|
31
|
25
|
28
|
21
|
24
|
39
|
28
|
35
|
56
|
46
|
36
|
37
|
28
|
18
|
24
|
30
|
30
|
28
|
27
|
23
|
24
|
28
|
26
|
45
|
25
|
29
|
29
|
|
|
2023/05
|
53
|
50
|
35
|
31
|
29
|
31
|
23
|
25
|
46
|
52
|
44
|
14
|
34
|
45
|
59
|
41
|
30
|
44
|
55
|
44
|
37
|
38
|
29
|
33
|
55
|
33
|
39
|
41
|
58
|
46
|
41
|
|
2023/04
|
29
|
39
|
40
|
32
|
37
|
31
|
25
|
59
|
59
|
66
|
73
|
56
|
45
|
53
|
34
|
54
|
62
|
45
|
33
|
56
|
32
|
40
|
41
|
27
|
12
|
24
|
45
|
43
|
30
|
38
|
|
|
2023/03
|
82
|
63
|
83
|
78
|
73
|
72
|
55
|
47
|
56
|
70
|
52
|
52
|
81
|
84
|
60
|
70
|
51
|
62
|
48
|
42
|
39
|
49
|
47
|
25
|
27
|
13
|
14
|
21
|
12
|
17
|
16
|
|
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