Air Quality
Excellent
No health implications.
13
PM2.5
38
PM10
28
O3
0.5
CO
6
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
8 Sep
55
Good
Tue
9 Sep
60
Good
Wed
10 Sep
47
Excellent
Thu
11 Sep
46
Excellent
Fri
12 Sep
48
Excellent
Sat
13 Sep
49
Excellent
Sun
14 Sep
34
Excellent
Air quality in the last 12 months (Cheng County)
|
2025/08
|
33
|
31
|
37
|
35
|
29
|
27
|
28
|
28
|
24
|
22
|
30
|
37
|
31
|
32
|
30
|
26
|
21
|
24
|
26
|
26
|
30
|
27
|
19
|
22
|
21
|
29
|
24
|
15
|
17
|
20
|
24
|
|
2025/07
|
24
|
24
|
20
|
22
|
24
|
27
|
22
|
25
|
24
|
26
|
24
|
28
|
30
|
28
|
35
|
39
|
38
|
29
|
39
|
30
|
26
|
29
|
24
|
20
|
19
|
26
|
30
|
24
|
33
|
25
|
29
|
|
2025/06
|
33
|
37
|
40
|
34
|
36
|
39
|
33
|
34
|
32
|
34
|
38
|
39
|
35
|
46
|
60
|
48
|
44
|
32
|
41
|
45
|
34
|
26
|
27
|
27
|
24
|
25
|
23
|
32
|
34
|
20
|
|
|
2025/05
|
61
|
49
|
80
|
73
|
37
|
70
|
39
|
45
|
86
|
43
|
51
|
56
|
42
|
60
|
53
|
52
|
70
|
62
|
65
|
59
|
56
|
90
|
63
|
42
|
37
|
44
|
30
|
29
|
32
|
45
|
52
|
|
2025/04
|
81
|
84
|
75
|
76
|
88
|
59
|
44
|
72
|
73
|
67
|
93
|
480
|
155
|
82
|
63
|
70
|
67
|
141
|
127
|
61
|
74
|
98
|
65
|
53
|
50
|
40
|
40
|
51
|
51
|
58
|
|
|
2025/03
|
61
|
51
|
37
|
30
|
34
|
43
|
47
|
57
|
38
|
34
|
110
|
117
|
77
|
32
|
53
|
50
|
52
|
46
|
47
|
52
|
47
|
48
|
55
|
47
|
44
|
149
|
189
|
94
|
89
|
68
|
65
|
|
2025/02
|
70
|
56
|
40
|
48
|
54
|
49
|
62
|
62
|
55
|
46
|
57
|
79
|
61
|
53
|
52
|
58
|
46
|
42
|
59
|
60
|
69
|
58
|
50
|
48
|
51
|
43
|
41
|
46
|
|||
|
2025/01
|
78
|
63
|
67
|
74
|
70
|
78
|
68
|
59
|
55
|
58
|
54
|
59
|
61
|
66
|
52
|
59
|
68
|
67
|
69
|
70
|
72
|
85
|
117
|
100
|
65
|
71
|
71
|
85
|
132
|
110
|
87
|
|
2024/12
|
63
|
73
|
70
|
59
|
54
|
58
|
54
|
51
|
40
|
51
|
62
|
56
|
43
|
50
|
61
|
68
|
70
|
60
|
53
|
65
|
68
|
58
|
53
|
58
|
59
|
60
|
56
|
55
|
72
|
63
|
55
|
|
2024/11
|
33
|
28
|
42
|
45
|
39
|
36
|
42
|
42
|
43
|
45
|
43
|
47
|
40
|
30
|
38
|
42
|
33
|
18
|
26
|
38
|
39
|
36
|
43
|
31
|
36
|
50
|
54
|
57
|
54
|
62
|
|
|
2024/10
|
25
|
26
|
29
|
27
|
33
|
38
|
39
|
39
|
35
|
31
|
36
|
26
|
27
|
29
|
26
|
34
|
32
|
37
|
31
|
20
|
28
|
36
|
41
|
42
|
43
|
30
|
27
|
34
|
38
|
36
|
30
|
|
2024/09
|
22
|
34
|
33
|
25
|
16
|
27
|
23
|
28
|
21
|
22
|
28
|
29
|
26
|
25
|
35
|
32
|
27
|
31
|
31
|
28
|
24
|
29
|
33
|
36
|
29
|
25
|
50
|
59
|
30
|
20
|
|
|
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