Air Quality
Excellent
No health implications.
21
PM2.5
38
PM10
21
O3
0.7
CO
7
SO2
39
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
28 Apr
62
Good
Tue
29 Apr
91
Good
Wed
30 Apr
93
Good
Thu
1 May
81
Good
Fri
2 May
93
Good
Sat
3 May
92
Good
Sun
4 May
15
Excellent
Air quality in the last 12 months (Chancheng)
|
2025/02
|
48
|
47
|
11
|
30
|
42
|
44
|
27
|
57
|
32
|
55
|
58
|
49
|
45
|
54
|
45
|
74
|
48
|
60
|
51
|
49
|
41
|
40
|
28
|
36
|
52
|
55
|
62
|
46
|
|||
|
2025/01
|
81
|
91
|
63
|
68
|
90
|
85
|
89
|
76
|
71
|
52
|
41
|
48
|
74
|
73
|
61
|
59
|
56
|
63
|
69
|
70
|
81
|
60
|
70
|
50
|
31
|
21
|
26
|
43
|
77
|
56
|
34
|
|
2024/12
|
82
|
101
|
99
|
76
|
66
|
66
|
51
|
38
|
57
|
74
|
61
|
34
|
39
|
54
|
51
|
38
|
70
|
49
|
52
|
61
|
63
|
59
|
67
|
63
|
61
|
68
|
83
|
67
|
75
|
101
|
80
|
|
2024/11
|
45
|
38
|
49
|
51
|
40
|
55
|
48
|
48
|
52
|
57
|
53
|
49
|
45
|
30
|
21
|
22
|
26
|
28
|
19
|
22
|
27
|
30
|
36
|
40
|
34
|
27
|
34
|
42
|
43
|
54
|
|
|
2024/10
|
38
|
31
|
41
|
38
|
40
|
46
|
49
|
68
|
55
|
35
|
45
|
63
|
56
|
38
|
45
|
40
|
28
|
45
|
54
|
43
|
35
|
35
|
31
|
38
|
42
|
41
|
32
|
22
|
27
|
41
|
46
|
|
2024/09
|
35
|
38
|
42
|
42
|
32
|
17
|
17
|
21
|
24
|
33
|
55
|
47
|
41
|
42
|
27
|
28
|
36
|
20
|
35
|
28
|
18
|
21
|
22
|
23
|
41
|
44
|
47
|
49
|
35
|
34
|
|
|
2024/08
|
21
|
26
|
23
|
30
|
40
|
42
|
47
|
30
|
24
|
24
|
23
|
27
|
34
|
29
|
26
|
20
|
18
|
20
|
27
|
28
|
22
|
24
|
30
|
39
|
28
|
38
|
39
|
49
|
32
|
33
|
24
|
|
2024/07
|
19
|
21
|
16
|
13
|
20
|
18
|
12
|
14
|
18
|
14
|
13
|
14
|
13
|
18
|
16
|
15
|
13
|
14
|
21
|
20
|
16
|
14
|
17
|
21
|
30
|
32
|
18
|
14
|
13
|
14
|
15
|
|
2024/06
|
12
|
21
|
24
|
26
|
37
|
26
|
30
|
24
|
17
|
14
|
18
|
23
|
20
|
21
|
20
|
22
|
24
|
20
|
24
|
20
|
14
|
25
|
15
|
13
|
16
|
16
|
26
|
14
|
12
|
16
|
|
|
2024/05
|
22
|
31
|
45
|
30
|
34
|
42
|
43
|
35
|
45
|
47
|
41
|
35
|
44
|
49
|
52
|
52
|
56
|
52
|
36
|
24
|
17
|
30
|
49
|
18
|
26
|
20
|
22
|
24
|
31
|
38
|
17
|
|
2024/04
|
44
|
49
|
31
|
28
|
20
|
21
|
24
|
32
|
32
|
40
|
55
|
53
|
47
|
38
|
38
|
35
|
27
|
31
|
29
|
23
|
23
|
34
|
32
|
43
|
25
|
30
|
43
|
32
|
31
|
26
|
|
|
2024/03
|
23
|
29
|
57
|
49
|
37
|
41
|
35
|
46
|
47
|
23
|
22
|
45
|
65
|
64
|
71
|
78
|
61
|
60
|
32
|
71
|
62
|
58
|
49
|
41
|
41
|
49
|
49
|
47
|
54
|
40
|
38
|
|
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