Air Quality
Light
Healthy people may experience slight irritations and sensitive individuals will be slightly affected to a larger extent.
63
PM2.5
170
*
PM10
62
O3
0.9
CO
9
SO2
27
NO2
Healthy people may experience slight irritations and sensitive individuals will be slightly affected to a larger extent.
Advise
Children, seniors and individuals with respiratory or heart diseases should reduce sustained and high-intensity outdoor exercises.
Air Quality
Today
28 Jan
101
Light
Thu
29 Jan
83
Good
Fri
30 Jan
72
Good
Sat
31 Jan
65
Good
Sun
1 Feb
69
Good
Mon
2 Feb
68
Good
Tue
3 Feb
49
Excellent
Air quality in the last 12 months (Cheng County)
|
2025/12
|
64
|
62
|
57
|
62
|
61
|
70
|
70
|
62
|
78
|
74
|
71
|
59
|
81
|
70
|
69
|
75
|
68
|
70
|
72
|
50
|
47
|
49
|
58
|
57
|
56
|
58
|
69
|
80
|
82
|
82
|
63
|
|
2025/11
|
52
|
47
|
40
|
32
|
34
|
33
|
54
|
65
|
56
|
55
|
52
|
51
|
56
|
60
|
52
|
50
|
52
|
45
|
50
|
59
|
58
|
61
|
61
|
63
|
62
|
81
|
107
|
77
|
74
|
63
|
|
|
2025/10
|
23
|
22
|
21
|
20
|
27
|
19
|
17
|
22
|
20
|
18
|
19
|
21
|
27
|
28
|
25
|
25
|
20
|
26
|
25
|
21
|
19
|
21
|
24
|
22
|
29
|
39
|
41
|
38
|
45
|
44
|
53
|
|
2025/09
|
28
|
38
|
51
|
39
|
37
|
62
|
56
|
33
|
32
|
29
|
21
|
24
|
26
|
30
|
26
|
25
|
25
|
16
|
19
|
20
|
18
|
21
|
21
|
31
|
33
|
38
|
24
|
24
|
33
|
38
|
|
|
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
|
|
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