Air Quality
Excellent
No health implications.
7
PM2.5
44
PM10
99
O3
0.3
CO
6
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 Nov
143
Light
Mon
24 Nov
81
Good
Tue
25 Nov
97
Good
Wed
26 Nov
178
Moderate
Thu
27 Nov
58
Good
Fri
28 Nov
66
Good
Sat
29 Nov
22
Excellent
Chengdong Air quality rank
Air quality in the last 12 months (Chengdong)
|
2025/10
|
19
|
40
|
53
|
61
|
46
|
35
|
18
|
16
|
21
|
17
|
25
|
18
|
36
|
46
|
38
|
57
|
36
|
61
|
46
|
54
|
56
|
45
|
24
|
30
|
39
|
30
|
43
|
47
|
56
|
56
|
55
|
|
2025/09
|
44
|
17
|
37
|
44
|
27
|
61
|
60
|
33
|
49
|
51
|
46
|
30
|
51
|
81
|
86
|
107
|
30
|
24
|
36
|
36
|
30
|
35
|
33
|
50
|
32
|
45
|
36
|
36
|
42
|
39
|
|
|
2025/08
|
53
|
37
|
36
|
15
|
17
|
22
|
32
|
16
|
24
|
26
|
28
|
23
|
30
|
27
|
27
|
36
|
41
|
38
|
29
|
59
|
12
|
19
|
24
|
30
|
36
|
23
|
12
|
13
|
19
|
25
|
34
|
|
2025/07
|
29
|
31
|
35
|
19
|
25
|
30
|
40
|
39
|
39
|
41
|
38
|
34
|
35
|
39
|
55
|
23
|
18
|
33
|
32
|
17
|
25
|
33
|
44
|
29
|
22
|
29
|
38
|
29
|
29
|
33
|
84
|
|
2025/06
|
33
|
35
|
35
|
32
|
40
|
46
|
44
|
37
|
28
|
31
|
31
|
39
|
35
|
31
|
35
|
34
|
48
|
45
|
31
|
30
|
26
|
25
|
27
|
20
|
27
|
29
|
26
|
32
|
20
|
30
|
|
|
2025/05
|
40
|
78
|
195
|
79
|
67
|
125
|
126
|
55
|
44
|
33
|
50
|
49
|
55
|
30
|
38
|
43
|
68
|
38
|
46
|
46
|
45
|
51
|
47
|
30
|
28
|
42
|
40
|
43
|
75
|
61
|
71
|
|
2025/04
|
118
|
112
|
104
|
145
|
103
|
70
|
105
|
71
|
73
|
52
|
71
|
31
|
42
|
49
|
62
|
108
|
76
|
93
|
104
|
110
|
78
|
79
|
42
|
50
|
55
|
41
|
29
|
44
|
44
|
39
|
|
|
2025/03
|
78
|
56
|
66
|
67
|
55
|
71
|
74
|
56
|
56
|
59
|
210
|
145
|
99
|
47
|
57
|
49
|
49
|
44
|
54
|
61
|
62
|
68
|
57
|
54
|
45
|
363
|
106
|
59
|
74
|
121
|
91
|
|
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
|
|
|
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