Air Quality
Excellent
No health implications.
17
PM2.5
24
PM10
44
O3
1.1
CO
6
SO2
17
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
28 Feb
58
Good
Sat
1 Mar
49
Excellent
Sun
2 Mar
56
Good
Mon
3 Mar
51
Good
Tue
4 Mar
49
Excellent
Wed
5 Mar
47
Excellent
Thu
6 Mar
44
Excellent
Air quality in the last 12 months (Chengbu)
|
2025/01
|
107
|
106
|
115
|
144
|
154
|
99
|
83
|
83
|
50
|
59
|
63
|
71
|
71
|
72
|
75
|
67
|
73
|
90
|
89
|
89
|
103
|
119
|
142
|
189
|
51
|
24
|
50
|
81
|
198
|
108
|
44
|
|
2024/12
|
61
|
72
|
88
|
114
|
48
|
28
|
38
|
55
|
91
|
29
|
29
|
61
|
65
|
55
|
49
|
52
|
69
|
67
|
84
|
96
|
95
|
89
|
87
|
95
|
97
|
96
|
83
|
115
|
112
|
112
|
90
|
|
2024/11
|
51
|
77
|
76
|
73
|
80
|
71
|
59
|
53
|
64
|
71
|
66
|
68
|
69
|
79
|
79
|
68
|
27
|
16
|
17
|
24
|
35
|
42
|
54
|
54
|
35
|
22
|
36
|
41
|
44
|
56
|
|
|
2024/10
|
27
|
46
|
58
|
54
|
54
|
62
|
59
|
49
|
47
|
53
|
64
|
69
|
89
|
68
|
41
|
34
|
44
|
34
|
17
|
20
|
26
|
19
|
30
|
39
|
44
|
50
|
42
|
52
|
62
|
56
|
54
|
|
2024/09
|
35
|
34
|
41
|
40
|
52
|
44
|
32
|
31
|
31
|
35
|
37
|
39
|
35
|
35
|
40
|
37
|
40
|
42
|
40
|
40
|
30
|
31
|
40
|
45
|
58
|
60
|
55
|
57
|
54
|
55
|
|
|
2024/08
|
14
|
20
|
22
|
27
|
29
|
28
|
31
|
27
|
27
|
27
|
23
|
32
|
32
|
40
|
44
|
39
|
40
|
40
|
39
|
32
|
31
|
20
|
20
|
20
|
28
|
31
|
35
|
30
|
36
|
38
|
43
|
|
2024/07
|
18
|
12
|
22
|
20
|
19
|
18
|
21
|
19
|
22
|
25
|
25
|
25
|
27
|
21
|
25
|
25
|
20
|
18
|
14
|
21
|
27
|
26
|
23
|
29
|
34
|
33
|
35
|
16
|
15
|
19
|
15
|
|
2024/06
|
25
|
20
|
43
|
19
|
15
|
23
|
33
|
34
|
35
|
27
|
19
|
20
|
16
|
21
|
26
|
29
|
13
|
10
|
18
|
24
|
22
|
28
|
26
|
18
|
10
|
18
|
19
|
21
|
15
|
13
|
|
|
2024/05
|
18
|
34
|
21
|
14
|
22
|
35
|
44
|
51
|
47
|
39
|
27
|
44
|
58
|
59
|
59
|
64
|
57
|
39
|
18
|
19
|
33
|
46
|
41
|
36
|
40
|
20
|
18
|
34
|
32
|
20
|
20
|
|
2024/04
|
48
|
61
|
33
|
25
|
22
|
21
|
29
|
37
|
43
|
48
|
51
|
51
|
44
|
43
|
59
|
51
|
23
|
32
|
24
|
25
|
34
|
43
|
41
|
43
|
36
|
33
|
34
|
46
|
51
|
13
|
|
|
2024/03
|
70
|
46
|
53
|
45
|
31
|
65
|
64
|
57
|
61
|
55
|
43
|
50
|
44
|
47
|
38
|
37
|
42
|
18
|
46
|
75
|
75
|
58
|
40
|
45
|
27
|
23
|
51
|
28
|
36
|
56
|
47
|
|
2024/02
|
37
|
17
|
15
|
26
|
45
|
34
|
44
|
60
|
85
|
136
|
96
|
86
|
66
|
47
|
48
|
44
|
52
|
43
|
59
|
63
|
19
|
20
|
21
|
23
|
29
|
27
|
47
|
39
|
42
|
||
|
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