Air Quality
Excellent
No health implications.
9
PM2.5
18
PM10
40
O3
0.6
CO
3
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
16 Apr
45
Excellent
Fri
17 Apr
53
Good
Sat
18 Apr
56
Good
Sun
19 Apr
48
Excellent
Mon
20 Apr
51
Good
Tue
21 Apr
41
Excellent
Wed
22 Apr
20
Excellent
Air quality in the last 12 months (Chengbu)
|
2026/03
|
10
|
15
|
27
|
29
|
37
|
49
|
63
|
22
|
22
|
45
|
34
|
45
|
56
|
65
|
85
|
63
|
57
|
31
|
35
|
23
|
28
|
32
|
25
|
16
|
37
|
44
|
22
|
26
|
31
|
33
|
30
|
|
2026/02
|
60
|
63
|
71
|
98
|
108
|
72
|
78
|
58
|
61
|
42
|
44
|
62
|
50
|
59
|
61
|
29
|
49
|
68
|
61
|
43
|
66
|
86
|
76
|
36
|
51
|
44
|
14
|
17
|
|||
|
2026/01
|
28
|
51
|
63
|
65
|
38
|
55
|
57
|
59
|
68
|
95
|
95
|
105
|
96
|
92
|
116
|
136
|
119
|
120
|
58
|
22
|
43
|
56
|
62
|
72
|
86
|
31
|
64
|
84
|
77
|
24
|
35
|
|
2025/12
|
69
|
92
|
81
|
71
|
65
|
77
|
85
|
75
|
89
|
95
|
95
|
110
|
29
|
47
|
61
|
72
|
74
|
74
|
80
|
82
|
68
|
89
|
64
|
37
|
56
|
60
|
63
|
67
|
83
|
91
|
107
|
|
2025/11
|
41
|
30
|
18
|
17
|
30
|
32
|
35
|
10
|
8
|
10
|
28
|
48
|
39
|
45
|
48
|
56
|
58
|
25
|
29
|
36
|
38
|
45
|
55
|
57
|
51
|
50
|
68
|
67
|
56
|
64
|
|
|
2025/10
|
45
|
32
|
29
|
40
|
47
|
24
|
23
|
38
|
39
|
36
|
38
|
51
|
62
|
37
|
42
|
41
|
41
|
21
|
12
|
9
|
12
|
26
|
36
|
41
|
51
|
53
|
45
|
55
|
66
|
78
|
49
|
|
2025/09
|
34
|
31
|
27
|
26
|
36
|
37
|
44
|
41
|
17
|
20
|
23
|
18
|
25
|
31
|
32
|
32
|
23
|
35
|
43
|
26
|
27
|
22
|
23
|
15
|
14
|
17
|
28
|
36
|
42
|
48
|
|
|
2025/08
|
33
|
33
|
26
|
28
|
28
|
16
|
14
|
20
|
27
|
28
|
31
|
33
|
37
|
27
|
13
|
24
|
26
|
28
|
19
|
20
|
19
|
22
|
29
|
34
|
27
|
28
|
29
|
25
|
29
|
29
|
31
|
|
2025/07
|
19
|
18
|
22
|
28
|
32
|
45
|
37
|
35
|
37
|
31
|
26
|
37
|
30
|
31
|
21
|
25
|
26
|
35
|
32
|
28
|
14
|
12
|
15
|
24
|
26
|
33
|
33
|
26
|
31
|
30
|
29
|
|
2025/06
|
26
|
18
|
35
|
44
|
46
|
40
|
28
|
25
|
34
|
35
|
36
|
27
|
29
|
20
|
23
|
27
|
14
|
13
|
17
|
20
|
20
|
14
|
18
|
17
|
26
|
29
|
22
|
17
|
18
|
18
|
|
|
2025/05
|
50
|
62
|
59
|
43
|
38
|
43
|
50
|
45
|
26
|
42
|
34
|
44
|
54
|
65
|
59
|
25
|
33
|
25
|
30
|
24
|
24
|
30
|
31
|
49
|
53
|
38
|
32
|
13
|
23
|
32
|
26
|
|
2025/04
|
51
|
57
|
66
|
119
|
112
|
83
|
99
|
114
|
99
|
68
|
59
|
110
|
206
|
126
|
89
|
83
|
78
|
76
|
45
|
32
|
44
|
31
|
53
|
33
|
32
|
41
|
31
|
37
|
57
|
50
|
|
|
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