Air Quality
Excellent
No health implications.
14
PM2.5
23
PM10
37
O3
0.4
CO
9
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
21 Jun
53
Good
Mon
22 Jun
54
Good
Tue
23 Jun
59
Good
Wed
24 Jun
64
Good
Thu
25 Jun
62
Good
Fri
26 Jun
65
Good
Sat
27 Jun
34
Excellent
Air quality in the last 12 months (Cheng County)
|
2026/05
|
28
|
48
|
44
|
40
|
41
|
50
|
52
|
33
|
38
|
45
|
49
|
42
|
31
|
31
|
51
|
23
|
24
|
33
|
34
|
33
|
42
|
72
|
45
|
26
|
45
|
45
|
56
|
52
|
43
|
39
|
41
|
|
2026/04
|
44
|
41
|
62
|
77
|
64
|
55
|
47
|
34
|
45
|
54
|
53
|
51
|
52
|
56
|
43
|
51
|
52
|
51
|
184
|
80
|
38
|
37
|
44
|
55
|
57
|
55
|
42
|
36
|
48
|
42
|
|
|
2026/03
|
28
|
32
|
37
|
44
|
66
|
56
|
46
|
26
|
36
|
38
|
41
|
63
|
98
|
58
|
66
|
52
|
35
|
59
|
65
|
59
|
54
|
71
|
68
|
59
|
53
|
43
|
49
|
46
|
41
|
29
|
40
|
|
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
|
|
|
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