Air Quality
Excellent
No health implications.
13
PM2.5
20
PM10
44
O3
0.6
CO
4
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
13 Dec
89
Good
Sun
14 Dec
56
Good
Mon
15 Dec
63
Good
Tue
16 Dec
89
Good
Wed
17 Dec
90
Good
Thu
18 Dec
97
Good
Fri
19 Dec
16
Excellent
Air quality in the last 12 months (Changning)
|
2025/11
|
46
|
41
|
23
|
21
|
28
|
29
|
46
|
14
|
9
|
13
|
34
|
53
|
41
|
48
|
53
|
59
|
64
|
27
|
34
|
43
|
51
|
60
|
71
|
64
|
52
|
61
|
71
|
80
|
72
|
68
|
|
|
2025/10
|
58
|
44
|
31
|
49
|
48
|
22
|
34
|
49
|
39
|
38
|
44
|
68
|
88
|
47
|
58
|
55
|
50
|
23
|
9
|
8
|
10
|
24
|
36
|
41
|
51
|
63
|
66
|
67
|
81
|
93
|
57
|
|
2025/09
|
21
|
24
|
26
|
31
|
37
|
34
|
41
|
34
|
19
|
21
|
19
|
21
|
26
|
34
|
34
|
33
|
25
|
39
|
38
|
23
|
24
|
18
|
24
|
10
|
12
|
20
|
32
|
44
|
51
|
57
|
|
|
2025/08
|
29
|
27
|
17
|
19
|
21
|
13
|
13
|
18
|
26
|
29
|
30
|
32
|
33
|
25
|
12
|
18
|
22
|
23
|
13
|
16
|
20
|
19
|
25
|
26
|
23
|
19
|
29
|
28
|
26
|
21
|
23
|
|
2025/07
|
14
|
14
|
17
|
23
|
33
|
38
|
40
|
33
|
34
|
22
|
24
|
26
|
26
|
28
|
23
|
24
|
26
|
39
|
33
|
31
|
22
|
13
|
15
|
23
|
24
|
28
|
23
|
21
|
24
|
24
|
22
|
|
2025/06
|
19
|
20
|
40
|
45
|
45
|
38
|
29
|
27
|
36
|
39
|
37
|
26
|
32
|
17
|
14
|
23
|
11
|
11
|
16
|
21
|
21
|
15
|
25
|
18
|
31
|
24
|
14
|
15
|
16
|
16
|
|
|
2025/05
|
49
|
57
|
55
|
50
|
34
|
48
|
65
|
43
|
30
|
53
|
51
|
53
|
51
|
45
|
60
|
28
|
27
|
22
|
23
|
19
|
21
|
23
|
26
|
53
|
54
|
47
|
44
|
17
|
20
|
29
|
16
|
|
2025/04
|
58
|
59
|
62
|
105
|
107
|
87
|
76
|
68
|
67
|
45
|
52
|
221
|
192
|
132
|
89
|
75
|
82
|
67
|
31
|
26
|
35
|
33
|
53
|
34
|
30
|
39
|
25
|
39
|
54
|
52
|
|
|
2025/03
|
35
|
34
|
22
|
20
|
29
|
37
|
54
|
49
|
51
|
45
|
49
|
49
|
51
|
27
|
20
|
42
|
42
|
40
|
46
|
51
|
54
|
59
|
71
|
78
|
75
|
67
|
69
|
64
|
46
|
22
|
44
|
|
2025/02
|
29
|
24
|
45
|
60
|
67
|
68
|
56
|
62
|
48
|
56
|
65
|
68
|
89
|
106
|
64
|
38
|
45
|
39
|
31
|
19
|
66
|
31
|
34
|
74
|
90
|
87
|
46
|
37
|
|||
|
2025/01
|
127
|
113
|
136
|
156
|
169
|
108
|
91
|
94
|
59
|
58
|
61
|
73
|
69
|
65
|
89
|
67
|
75
|
75
|
94
|
87
|
92
|
96
|
125
|
230
|
51
|
30
|
57
|
72
|
230
|
121
|
69
|
|
2024/12
|
61
|
66
|
76
|
131
|
57
|
42
|
45
|
59
|
107
|
79
|
42
|
69
|
86
|
67
|
58
|
64
|
73
|
74
|
95
|
116
|
116
|
106
|
88
|
103
|
119
|
118
|
113
|
126
|
96
|
118
|
111
|
|
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