Air Quality
Excellent
No health implications.
15
PM2.5
44
PM10
38
O3
0.3
CO
7
SO2
22
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
12 Apr
82
Good
Sun
13 Apr
59
Good
Mon
14 Apr
56
Good
Tue
15 Apr
54
Good
Wed
16 Apr
53
Good
Thu
17 Apr
23
Excellent
Fri
18 Apr
48
Excellent
Air quality in the last 12 months (Chengdong)
|
2025/02
|
63
|
54
|
42
|
50
|
39
|
52
|
46
|
60
|
63
|
54
|
74
|
70
|
71
|
61
|
49
|
54
|
55
|
54
|
72
|
64
|
73
|
70
|
59
|
56
|
52
|
47
|
60
|
53
|
|||
|
2025/01
|
81
|
60
|
71
|
62
|
53
|
70
|
70
|
84
|
93
|
51
|
57
|
45
|
46
|
64
|
67
|
60
|
73
|
58
|
58
|
57
|
77
|
70
|
88
|
88
|
79
|
56
|
59
|
72
|
142
|
58
|
46
|
|
2024/12
|
58
|
55
|
80
|
61
|
71
|
86
|
65
|
70
|
82
|
64
|
92
|
59
|
58
|
101
|
104
|
61
|
74
|
79
|
87
|
106
|
111
|
136
|
131
|
120
|
117
|
104
|
51
|
79
|
83
|
92
|
64
|
|
2024/11
|
53
|
47
|
58
|
53
|
55
|
68
|
57
|
51
|
74
|
67
|
64
|
58
|
56
|
75
|
91
|
50
|
55
|
54
|
75
|
76
|
78
|
75
|
86
|
43
|
33
|
70
|
49
|
47
|
81
|
95
|
|
|
2024/10
|
24
|
36
|
46
|
45
|
43
|
44
|
50
|
51
|
38
|
37
|
45
|
35
|
40
|
49
|
51
|
26
|
34
|
43
|
45
|
46
|
56
|
35
|
51
|
56
|
55
|
38
|
39
|
45
|
64
|
63
|
43
|
|
2024/09
|
40
|
38
|
35
|
14
|
14
|
18
|
21
|
44
|
17
|
21
|
24
|
26
|
14
|
25
|
38
|
20
|
25
|
33
|
40
|
17
|
23
|
35
|
29
|
42
|
44
|
35
|
59
|
54
|
22
|
18
|
|
|
2024/08
|
39
|
21
|
24
|
26
|
36
|
31
|
30
|
33
|
35
|
20
|
32
|
37
|
43
|
17
|
21
|
25
|
27
|
26
|
33
|
38
|
44
|
49
|
40
|
33
|
25
|
28
|
44
|
46
|
25
|
44
|
35
|
|
2024/07
|
17
|
26
|
24
|
33
|
39
|
50
|
52
|
37
|
45
|
49
|
43
|
44
|
41
|
26
|
44
|
39
|
33
|
34
|
26
|
40
|
174
|
48
|
42
|
61
|
49
|
55
|
47
|
25
|
21
|
32
|
27
|
|
2024/06
|
49
|
39
|
33
|
31
|
37
|
25
|
38
|
29
|
35
|
36
|
34
|
37
|
29
|
32
|
37
|
21
|
32
|
21
|
47
|
31
|
26
|
30
|
31
|
36
|
42
|
36
|
46
|
28
|
31
|
25
|
|
|
2024/05
|
45
|
37
|
39
|
35
|
57
|
62
|
61
|
55
|
52
|
46
|
24
|
36
|
42
|
43
|
209
|
80
|
73
|
60
|
67
|
42
|
53
|
57
|
66
|
123
|
41
|
43
|
41
|
32
|
14
|
27
|
39
|
|
2024/04
|
68
|
74
|
55
|
55
|
37
|
32
|
42
|
50
|
44
|
38
|
47
|
48
|
54
|
124
|
255
|
103
|
63
|
44
|
46
|
27
|
46
|
30
|
32
|
34
|
33
|
53
|
58
|
311
|
61
|
32
|
|
|
2024/03
|
62
|
69
|
67
|
82
|
60
|
68
|
77
|
88
|
76
|
58
|
48
|
56
|
59
|
61
|
112
|
199
|
76
|
91
|
59
|
55
|
54
|
71
|
82
|
37
|
44
|
43
|
54
|
43
|
43
|
150
|
84
|
|
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