Air Quality
Excellent
No health implications.
25
PM2.5
42
PM10
12
O3
0.8
CO
7
SO2
28
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
16 Dec
59
Good
Wed
17 Dec
65
Good
Thu
18 Dec
86
Good
Fri
19 Dec
75
Good
Sat
20 Dec
67
Good
Sun
21 Dec
41
Excellent
Mon
22 Dec
50
Excellent
Air quality in the last 12 months (Yihuang)
|
2025/11
|
43
|
54
|
60
|
36
|
28
|
40
|
45
|
31
|
21
|
24
|
54
|
31
|
36
|
44
|
53
|
60
|
63
|
29
|
36
|
45
|
50
|
55
|
62
|
60
|
73
|
75
|
69
|
72
|
55
|
53
|
|
|
2025/10
|
41
|
39
|
38
|
49
|
36
|
27
|
40
|
47
|
43
|
44
|
38
|
38
|
59
|
49
|
46
|
57
|
50
|
48
|
23
|
29
|
31
|
32
|
42
|
44
|
53
|
64
|
59
|
62
|
57
|
81
|
47
|
|
2025/09
|
24
|
23
|
24
|
29
|
28
|
33
|
32
|
25
|
19
|
20
|
21
|
25
|
26
|
28
|
30
|
27
|
29
|
34
|
34
|
35
|
36
|
40
|
36
|
36
|
33
|
34
|
41
|
41
|
45
|
46
|
|
|
2025/08
|
32
|
33
|
22
|
18
|
17
|
16
|
18
|
21
|
26
|
33
|
33
|
36
|
26
|
21
|
19
|
20
|
20
|
21
|
18
|
17
|
17
|
24
|
27
|
24
|
21
|
29
|
25
|
21
|
24
|
23
|
29
|
|
2025/07
|
21
|
22
|
27
|
30
|
27
|
33
|
39
|
42
|
26
|
24
|
29
|
20
|
23
|
25
|
30
|
29
|
38
|
46
|
30
|
20
|
20
|
18
|
26
|
22
|
27
|
28
|
22
|
24
|
25
|
30
|
29
|
|
2025/06
|
23
|
20
|
24
|
31
|
29
|
31
|
31
|
29
|
27
|
27
|
27
|
29
|
35
|
23
|
19
|
24
|
20
|
17
|
21
|
18
|
16
|
18
|
21
|
21
|
28
|
24
|
19
|
20
|
21
|
22
|
|
|
2025/05
|
51
|
47
|
51
|
52
|
28
|
35
|
56
|
39
|
23
|
44
|
36
|
35
|
38
|
36
|
46
|
24
|
23
|
17
|
24
|
23
|
24
|
29
|
24
|
56
|
58
|
55
|
49
|
33
|
24
|
27
|
27
|
|
2025/04
|
45
|
55
|
52
|
58
|
51
|
56
|
56
|
59
|
56
|
38
|
38
|
137
|
141
|
104
|
71
|
51
|
65
|
60
|
30
|
23
|
34
|
22
|
42
|
41
|
24
|
20
|
19
|
36
|
52
|
53
|
|
|
2025/03
|
42
|
34
|
35
|
22
|
32
|
32
|
45
|
43
|
52
|
35
|
46
|
48
|
30
|
22
|
21
|
39
|
46
|
42
|
46
|
39
|
44
|
46
|
51
|
60
|
61
|
66
|
58
|
68
|
45
|
30
|
41
|
|
2025/02
|
38
|
27
|
49
|
56
|
48
|
54
|
61
|
51
|
36
|
48
|
63
|
71
|
79
|
69
|
49
|
42
|
53
|
48
|
42
|
24
|
28
|
23
|
26
|
41
|
65
|
66
|
51
|
39
|
|||
|
2025/01
|
110
|
84
|
96
|
98
|
100
|
94
|
67
|
61
|
59
|
46
|
50
|
55
|
59
|
58
|
71
|
56
|
53
|
64
|
64
|
70
|
68
|
64
|
61
|
101
|
54
|
26
|
56
|
82
|
138
|
70
|
52
|
|
2024/12
|
46
|
51
|
57
|
88
|
56
|
44
|
45
|
69
|
55
|
57
|
35
|
51
|
70
|
58
|
55
|
55
|
57
|
65
|
63
|
60
|
64
|
74
|
60
|
72
|
79
|
82
|
107
|
75
|
71
|
79
|
84
|
|
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