Air Quality
Excellent
No health implications.
11
PM2.5
24
PM10
41
O3
0.5
CO
6
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
31 Jul
55
Good
Fri
1 Aug
59
Good
Sat
2 Aug
63
Good
Sun
3 Aug
51
Good
Mon
4 Aug
54
Good
Tue
5 Aug
46
Excellent
Wed
6 Aug
25
Excellent
Air quality in the last 12 months (Yihuang)
|
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
|
|
2024/11
|
30
|
38
|
46
|
54
|
59
|
51
|
47
|
47
|
53
|
56
|
45
|
47
|
52
|
52
|
31
|
36
|
38
|
27
|
35
|
44
|
45
|
34
|
51
|
55
|
41
|
35
|
40
|
46
|
47
|
47
|
|
|
2024/10
|
39
|
38
|
39
|
34
|
38
|
37
|
31
|
21
|
28
|
42
|
56
|
53
|
52
|
74
|
56
|
29
|
36
|
41
|
29
|
29
|
42
|
42
|
37
|
48
|
49
|
52
|
21
|
22
|
48
|
51
|
42
|
|
2024/09
|
44
|
47
|
51
|
43
|
41
|
33
|
24
|
26
|
25
|
30
|
37
|
27
|
32
|
37
|
36
|
34
|
34
|
36
|
35
|
30
|
28
|
30
|
31
|
28
|
37
|
39
|
42
|
33
|
37
|
34
|
|
|
2024/08
|
21
|
27
|
31
|
39
|
29
|
34
|
32
|
30
|
36
|
39
|
35
|
24
|
24
|
25
|
32
|
32
|
27
|
22
|
23
|
31
|
24
|
24
|
31
|
37
|
34
|
33
|
36
|
24
|
30
|
43
|
44
|
|
2024/07
|
25
|
24
|
23
|
23
|
27
|
22
|
22
|
21
|
28
|
29
|
30
|
27
|
24
|
23
|
27
|
30
|
20
|
21
|
20
|
21
|
23
|
25
|
32
|
39
|
33
|
20
|
17
|
19
|
19
|
21
|
21
|
|
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