Air Quality
Excellent
No health implications.
19
PM2.5
32
PM10
85
O3
0.9
CO
29
SO2
22
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
8 Jun
53
Good
Mon
9 Jun
63
Good
Tue
10 Jun
62
Good
Wed
11 Jun
64
Good
Thu
12 Jun
60
Good
Fri
13 Jun
86
Good
Sat
14 Jun
42
Excellent
Air quality in the last 12 months (Chengdong)
|
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
|
|
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
|
|
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