Air Quality
Excellent
No health implications.
7
PM2.5
13
PM10
28
O3
0.4
CO
4
SO2
25
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
15 May
46
Excellent
Sat
16 May
42
Excellent
Sun
17 May
49
Excellent
Mon
18 May
51
Good
Tue
19 May
47
Excellent
Wed
20 May
51
Good
Thu
21 May
29
Excellent
Air quality in the last 12 months (Chancheng)
|
2026/04
|
32
|
51
|
43
|
26
|
51
|
37
|
42
|
34
|
32
|
29
|
36
|
34
|
27
|
24
|
23
|
28
|
32
|
56
|
89
|
44
|
34
|
27
|
20
|
24
|
46
|
88
|
45
|
33
|
22
|
25
|
|
|
2026/03
|
21
|
26
|
11
|
17
|
27
|
32
|
38
|
62
|
50
|
20
|
38
|
58
|
65
|
50
|
50
|
47
|
41
|
36
|
54
|
31
|
42
|
47
|
47
|
44
|
58
|
33
|
41
|
40
|
31
|
31
|
33
|
|
2026/02
|
26
|
35
|
50
|
67
|
56
|
37
|
38
|
34
|
40
|
54
|
47
|
42
|
44
|
37
|
25
|
39
|
45
|
36
|
57
|
51
|
53
|
42
|
48
|
54
|
57
|
26
|
27
|
17
|
|||
|
2026/01
|
84
|
25
|
40
|
73
|
62
|
33
|
45
|
36
|
47
|
72
|
43
|
82
|
84
|
79
|
86
|
102
|
91
|
89
|
69
|
57
|
40
|
37
|
45
|
66
|
104
|
114
|
82
|
52
|
64
|
41
|
38
|
|
2025/12
|
60
|
43
|
56
|
67
|
77
|
79
|
91
|
66
|
64
|
86
|
73
|
61
|
37
|
37
|
51
|
79
|
60
|
57
|
83
|
41
|
63
|
71
|
67
|
70
|
22
|
46
|
53
|
67
|
77
|
65
|
66
|
|
2025/11
|
33
|
39
|
34
|
19
|
24
|
28
|
43
|
53
|
31
|
19
|
20
|
21
|
21
|
35
|
49
|
55
|
57
|
42
|
24
|
30
|
31
|
44
|
60
|
52
|
45
|
62
|
54
|
63
|
78
|
61
|
|
|
2025/10
|
32
|
16
|
17
|
29
|
12
|
14
|
31
|
38
|
40
|
40
|
39
|
19
|
23
|
25
|
30
|
48
|
47
|
59
|
39
|
21
|
15
|
16
|
24
|
40
|
42
|
45
|
53
|
49
|
53
|
50
|
42
|
|
2025/09
|
25
|
20
|
18
|
31
|
23
|
35
|
26
|
11
|
15
|
18
|
22
|
20
|
19
|
20
|
19
|
36
|
34
|
36
|
22
|
17
|
10
|
20
|
23
|
9
|
14
|
20
|
34
|
29
|
24
|
34
|
|
|
2025/08
|
25
|
22
|
22
|
31
|
21
|
18
|
32
|
37
|
30
|
28
|
31
|
20
|
28
|
35
|
16
|
28
|
23
|
14
|
19
|
28
|
21
|
32
|
42
|
22
|
22
|
27
|
35
|
48
|
32
|
23
|
25
|
|
2025/07
|
16
|
21
|
37
|
38
|
40
|
33
|
39
|
22
|
31
|
28
|
19
|
23
|
24
|
28
|
30
|
28
|
38
|
46
|
24
|
12
|
11
|
12
|
19
|
28
|
28
|
37
|
49
|
59
|
38
|
29
|
27
|
|
2025/06
|
30
|
27
|
18
|
28
|
29
|
34
|
23
|
17
|
21
|
29
|
19
|
17
|
15
|
11
|
18
|
21
|
13
|
15
|
15
|
17
|
13
|
16
|
14
|
16
|
16
|
14
|
13
|
14
|
14
|
13
|
|
|
2025/05
|
34
|
47
|
31
|
27
|
23
|
23
|
20
|
33
|
24
|
33
|
34
|
55
|
43
|
30
|
22
|
16
|
21
|
20
|
28
|
24
|
22
|
22
|
22
|
23
|
44
|
49
|
50
|
35
|
27
|
27
|
32
|
|
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