Air Quality
Excellent
No health implications.
8
PM2.5
17
PM10
144
O3
0.7
CO
8
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
16 Jul
79
Good
Thu
17 Jul
77
Good
Fri
18 Jul
87
Good
Sat
19 Jul
61
Good
Sun
20 Jul
56
Good
Mon
21 Jul
76
Good
Tue
22 Jul
48
Excellent
Chengdong Air quality rank
Air quality in the last 12 months (Chengdong)
|
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
|
|
|
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
|
|
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