Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
23
PM2.5
87
*
PM10
74
O3
0.3
CO
5
SO2
5
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
13 Dec
70
Good
Sun
14 Dec
67
Good
Mon
15 Dec
82
Good
Tue
16 Dec
87
Good
Wed
17 Dec
89
Good
Thu
18 Dec
36
Excellent
Fri
19 Dec
25
Excellent
Air quality in the last 12 months (Cheng County)
|
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
|
|
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
|
|
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