Air Quality
Excellent
No health implications.
9
PM2.5
11
PM10
81
O3
0.5
CO
5
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
24 Jun
30
Excellent
Thu
25 Jun
33
Excellent
Fri
26 Jun
47
Excellent
Sat
27 Jun
63
Good
Sun
28 Jun
70
Good
Mon
29 Jun
71
Good
Tue
30 Jun
16
Excellent
Air quality in the last 12 months (Chengkou)
|
2026/05
|
48
|
28
|
33
|
37
|
40
|
39
|
30
|
39
|
34
|
38
|
55
|
73
|
40
|
36
|
34
|
29
|
20
|
21
|
17
|
25
|
37
|
28
|
28
|
27
|
16
|
22
|
23
|
21
|
23
|
25
|
32
|
|
2026/04
|
33
|
40
|
43
|
66
|
67
|
62
|
55
|
41
|
31
|
40
|
36
|
30
|
29
|
24
|
24
|
30
|
44
|
50
|
61
|
85
|
50
|
20
|
27
|
32
|
43
|
55
|
49
|
28
|
34
|
42
|
|
|
2026/03
|
16
|
19
|
25
|
38
|
42
|
43
|
37
|
25
|
27
|
31
|
35
|
77
|
84
|
49
|
18
|
18
|
21
|
25
|
46
|
46
|
49
|
50
|
50
|
28
|
28
|
37
|
42
|
40
|
38
|
24
|
27
|
|
2026/02
|
60
|
63
|
69
|
79
|
82
|
81
|
98
|
73
|
54
|
55
|
57
|
58
|
73
|
72
|
64
|
35
|
73
|
58
|
57
|
57
|
57
|
71
|
73
|
46
|
43
|
29
|
26
|
16
|
|||
|
2026/01
|
24
|
41
|
56
|
66
|
61
|
59
|
62
|
70
|
82
|
81
|
85
|
102
|
113
|
104
|
111
|
91
|
110
|
121
|
58
|
36
|
48
|
50
|
57
|
65
|
77
|
72
|
64
|
62
|
52
|
29
|
43
|
|
2025/12
|
84
|
99
|
74
|
68
|
65
|
65
|
75
|
75
|
81
|
98
|
97
|
125
|
43
|
53
|
60
|
64
|
80
|
84
|
97
|
86
|
31
|
56
|
39
|
49
|
52
|
57
|
64
|
77
|
88
|
104
|
65
|
|
2025/11
|
38
|
42
|
50
|
54
|
51
|
39
|
16
|
21
|
27
|
48
|
46
|
44
|
49
|
49
|
53
|
49
|
20
|
19
|
29
|
40
|
45
|
60
|
52
|
45
|
43
|
54
|
70
|
70
|
68
|
80
|
|
|
2025/10
|
15
|
12
|
14
|
12
|
16
|
21
|
23
|
20
|
30
|
28
|
31
|
26
|
12
|
17
|
14
|
19
|
14
|
16
|
17
|
12
|
10
|
23
|
29
|
48
|
34
|
27
|
32
|
38
|
41
|
32
|
34
|
|
2025/09
|
24
|
27
|
23
|
24
|
24
|
15
|
17
|
17
|
16
|
23
|
18
|
13
|
15
|
20
|
29
|
26
|
20
|
15
|
11
|
13
|
16
|
16
|
13
|
13
|
24
|
17
|
16
|
19
|
11
|
12
|
|
|
2025/08
|
27
|
25
|
29
|
33
|
31
|
23
|
26
|
20
|
17
|
13
|
18
|
23
|
20
|
27
|
23
|
18
|
23
|
24
|
30
|
22
|
19
|
20
|
18
|
19
|
23
|
26
|
26
|
25
|
18
|
18
|
22
|
|
2025/07
|
16
|
20
|
22
|
20
|
16
|
21
|
18
|
17
|
23
|
22
|
30
|
35
|
33
|
34
|
32
|
30
|
34
|
24
|
24
|
26
|
26
|
21
|
16
|
13
|
13
|
17
|
22
|
23
|
21
|
20
|
25
|
|
2025/06
|
15
|
23
|
36
|
40
|
36
|
40
|
23
|
22
|
27
|
38
|
36
|
40
|
38
|
28
|
40
|
50
|
37
|
30
|
15
|
25
|
19
|
22
|
24
|
25
|
20
|
15
|
22
|
25
|
16
|
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