Air Quality
Excellent
No health implications.
15
PM2.5
30
PM10
104
O3
0.6
CO
6
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 Jun
65
Good
Thu
19 Jun
83
Good
Fri
20 Jun
88
Good
Sat
21 Jun
83
Good
Sun
22 Jun
77
Good
Mon
23 Jun
75
Good
Tue
24 Jun
31
Excellent
Cheng County Air quality rank
Air quality in the last 12 months (Cheng County)
|
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
|
|
|
2024/08
|
30
|
35
|
21
|
19
|
20
|
24
|
23
|
24
|
50
|
57
|
47
|
34
|
33
|
32
|
18
|
26
|
30
|
24
|
26
|
25
|
30
|
35
|
37
|
39
|
35
|
28
|
25
|
26
|
29
|
28
|
28
|
|
2024/07
|
22
|
26
|
18
|
19
|
29
|
35
|
19
|
16
|
24
|
25
|
24
|
22
|
25
|
24
|
16
|
15
|
16
|
19
|
18
|
18
|
13
|
23
|
21
|
56
|
70
|
56
|
48
|
38
|
27
|
29
|
27
|
|
2024/06
|
45
|
28
|
33
|
24
|
27
|
26
|
21
|
27
|
27
|
30
|
30
|
31
|
34
|
38
|
37
|
22
|
21
|
20
|
21
|
23
|
19
|
29
|
29
|
32
|
30
|
25
|
18
|
23
|
31
|
34
|
|
|
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