Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
41
PM2.5
95
*
PM10
50
O3
0.5
CO
7
SO2
15
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
15 Mar
49
Excellent
Mon
16 Mar
52
Good
Tue
17 Mar
51
Good
Wed
18 Mar
55
Good
Thu
19 Mar
52
Good
Fri
20 Mar
59
Good
Sat
21 Mar
26
Excellent
Cheng County Air quality rank
Air quality in the last 12 months (Cheng County)
|
2026/02
|
86
|
80
|
72
|
66
|
65
|
66
|
63
|
57
|
46
|
80
|
72
|
69
|
73
|
68
|
66
|
43
|
72
|
56
|
53
|
53
|
67
|
109
|
111
|
79
|
55
|
69
|
54
|
23
|
|||
|
2026/01
|
57
|
60
|
57
|
63
|
56
|
58
|
64
|
61
|
66
|
66
|
66
|
86
|
80
|
82
|
77
|
71
|
68
|
83
|
55
|
51
|
50
|
52
|
64
|
67
|
236
|
269
|
143
|
119
|
72
|
66
|
82
|
|
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
|
|
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